def __init__(self, layer, iface):
        super().__init__(None)
        self.setWindowModality(Qt.WindowModal)

        layout = QVBoxLayout()
        layout.setMargin(0)
        layout.setContentsMargins(0, 0, 0, 0)
        self.setLayout(layout)

        dlgContext = QgsAttributeEditorContext()
        dlgContext.setFormMode(QgsAttributeEditorContext.StandaloneDialog)
        dlgContext.setAllowCustomUi(False)

        self.form = QgsAttributeForm(layer, context=dlgContext, parent=self)
        self.form.setMode(3)
        self.configureForm()
        layout.addWidget(self.form)

        self.form.zoomToFeatures.connect(self.zoomToFeatures)

        self.form.closed.connect(self.close)

        self.setWindowTitle(self.tr('Filter NavTable Features by Form'))

        self.expression = ''
 def __init__(self, parent, settings):
     super(ConfigOptionsPage, self).__init__(parent)
     self.settings = settings
     self.config_widget = ConfigDialog(self.settings)
     layout = QVBoxLayout()
     layout.setContentsMargins(0, 0, 0, 0)
     layout.setMargin(0)
     self.setLayout(layout)
     layout.addWidget(self.config_widget)
     self.setObjectName('geosearchOptions')
Beispiel #3
0
    def __init__(self, alg):
        AlgorithmDialogBase.__init__(self, alg)

        self.alg = alg

        self.setMainWidget(GdalParametersPanel(self, alg))

        cornerWidget = QWidget()
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 5)
        self.tabWidget.setStyleSheet("QTabBar::tab { height: 30px; }")
        runAsBatchButton = QPushButton(self.tr("Run as batch process..."))
        runAsBatchButton.clicked.connect(self.runAsBatch)
        layout.addWidget(runAsBatchButton)
        cornerWidget.setLayout(layout)
        self.tabWidget.setCornerWidget(cornerWidget)

        self.mainWidget.parametersHaveChanged()
Beispiel #4
0
    def __init__(self, alg):
        AlgorithmDialogBase.__init__(self, alg)

        self.alg = alg

        self.setMainWidget(self.getParametersPanel(alg, self))

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.layout().insertWidget(0, self.bar)

        self.cornerWidget = QWidget()
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 5)
        self.runAsBatchButton = QPushButton(self.tr("Run as batch process..."))
        self.runAsBatchButton.clicked.connect(self.runAsBatch)
        layout.addWidget(self.runAsBatchButton)
        self.cornerWidget.setLayout(layout)
        self.tabWidget.setCornerWidget(self.cornerWidget)
Beispiel #5
0
    def __init__(self, alg):
        AlgorithmDialogBase.__init__(self, alg)

        self.alg = alg

        self.mainWidget = ParametersPanel(self, alg)
        self.setMainWidget()

        self.cornerWidget = QWidget()
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 5)
        self.tabWidget.setStyleSheet("QTabBar::tab { height: 30px; }")
        self.runAsBatchButton = QPushButton(self.tr("Run as batch process..."))
        self.runAsBatchButton.clicked.connect(self.runAsBatch)
        layout.addWidget(self.runAsBatchButton)
        self.cornerWidget.setLayout(layout)
        self.tabWidget.setCornerWidget(self.cornerWidget)

        QgsMapLayerRegistry.instance().layerWasAdded.connect(self.mainWidget.layerAdded)
        QgsMapLayerRegistry.instance().layersWillBeRemoved.connect(self.mainWidget.layersWillBeRemoved)
Beispiel #6
0
class ListMultiSelectWidget(QGroupBox):
    """Widget to show two parallel lists and move elements between the two

    usage from code:
        self.myWidget = ListMultiSelectWidget(title='myTitle')
        self.myLayout.insertWidget(1, self.myWidget)
    usage from designer:
        insert a QGroupBox in your UI file
        optionally give a title to the QGroupBox
        promote it to ListMultiSelectWidget
    """

    selection_changed = pyqtSignal()

    def __init__(self, parent=None, title=None):
        QGroupBox.__init__(self)
        self.setTitle(title)

        self.selected_widget = None
        self.unselected_widget = None
        self._setupUI()

        # connect actions
        self.select_all_btn.clicked.connect(self._select_all)
        self.deselect_all_btn.clicked.connect(self._deselect_all)
        self.select_btn.clicked.connect(self._select)
        self.deselect_btn.clicked.connect(self._deselect)

        self.unselected_widget.itemDoubleClicked.connect(self._select)
        self.selected_widget.itemDoubleClicked.connect(self._deselect)

    def get_selected_items(self):
        """
        :return list with all the selected items text
        """
        return self._get_items(self.selected_widget)

    def get_unselected_items(self):
        """
        :return list with all the unselected items text
        """
        return self._get_items(self.unselected_widget)

    def add_selected_items(self, items):
        """
        :param items list of strings to be added in the selected list
        """
        self._add_items(self.selected_widget, items)

    def add_unselected_items(self, items):
        """
        :param items list of strings to be added in the unselected list
        """
        self._add_items(self.unselected_widget, items)

    def set_selected_items(self, items):
        """
        :param items list of strings to be set as the selected list
        """
        self._set_items(self.selected_widget, items)

    def set_unselected_items(self, items):
        """
        :param items list of strings to be set as the unselected list
        """
        self._set_items(self.unselected_widget, items)

    def clear(self):
        """
        removes all items from selected and unselected
        """
        self.set_selected_items([])
        self.set_unselected_items([])

    def addItem(self, item):
        """
        This is for Processing
        :param item: string to be added in the unselected list
        """
        self.add_unselected_items([item])

    def addItems(self, items):
        """
        This is for Processing
        :param items: list of strings to be added in the unselected list
        """
        self.add_unselected_items(items)

    def _get_items(self, widget):
        for i in range(widget.count()):
            yield widget.item(i).text()

    def _set_items(self, widget, items):
        widget.clear()
        self._add_items(widget, items)

    def _add_items(self, widget, items):
        widget.addItems(items)

    def _select_all(self):
        self.unselected_widget.selectAll()
        self._do_move(self.unselected_widget, self.selected_widget)

    def _deselect_all(self):
        self.selected_widget.selectAll()
        self._do_move(self.selected_widget, self.unselected_widget)

    def _select(self):
        self._do_move(self.unselected_widget, self.selected_widget)

    def _deselect(self):
        self._do_move(self.selected_widget, self.unselected_widget)

    def _do_move(self, fromList, toList):
        for item in fromList.selectedItems():
            prev_from_item = fromList.item(fromList.row(item) - 1)
            toList.addItem(fromList.takeItem(fromList.row(item)))
            fromList.scrollToItem(prev_from_item)
        self.selection_changed.emit()

    def _setupUI(self):
        self.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Preferred)

        self.setMinimumHeight(180)

        self.main_horizontal_layout = QHBoxLayout(self)

        italic_font = QFont()
        italic_font.setItalic(True)

        # unselected widget
        self.unselected_widget = QListWidget(self)
        self._set_list_widget_defaults(self.unselected_widget)
        unselected_label = QLabel()
        unselected_label.setText('Unselected')
        unselected_label.setAlignment(Qt.AlignCenter)
        unselected_label.setFont(italic_font)
        unselected_v_layout = QVBoxLayout()
        unselected_v_layout.addWidget(unselected_label)
        unselected_v_layout.addWidget(self.unselected_widget)

        # selected widget
        self.selected_widget = QListWidget(self)
        self._set_list_widget_defaults(self.selected_widget)
        selected_label = QLabel()
        selected_label.setText('Selected')
        selected_label.setAlignment(Qt.AlignCenter)
        selected_label.setFont(italic_font)
        selected_v_layout = QVBoxLayout()
        selected_v_layout.addWidget(selected_label)
        selected_v_layout.addWidget(self.selected_widget)

        # buttons
        self.buttons_vertical_layout = QVBoxLayout()
        self.buttons_vertical_layout.setContentsMargins(0, -1, 0, -1)

        self.select_all_btn = SmallQPushButton('>>')
        self.deselect_all_btn = SmallQPushButton('<<')
        self.select_btn = SmallQPushButton('>')
        self.deselect_btn = SmallQPushButton('<')
        self.select_btn.setToolTip('Add the selected items')
        self.deselect_btn.setToolTip('Remove the selected items')
        self.select_all_btn.setToolTip('Add all')
        self.deselect_all_btn.setToolTip('Remove all')

        # add buttons
        spacer_label = QLabel()  # pragmatic way to create a spacer with
        # the same height of the labels on top
        # of the lists, in order to align the
        # buttons with the lists.
        self.buttons_vertical_layout.addWidget(spacer_label)
        self.buttons_vertical_layout.addWidget(self.select_btn)
        self.buttons_vertical_layout.addWidget(self.deselect_btn)
        self.buttons_vertical_layout.addWidget(self.select_all_btn)
        self.buttons_vertical_layout.addWidget(self.deselect_all_btn)

        # add sub widgets
        self.main_horizontal_layout.addLayout(unselected_v_layout)
        self.main_horizontal_layout.addLayout(self.buttons_vertical_layout)
        self.main_horizontal_layout.addLayout(selected_v_layout)

    def _set_list_widget_defaults(self, widget):
        widget.setAlternatingRowColors(True)
        widget.setSortingEnabled(True)
        widget.setDragEnabled(True)
        widget.setDragDropMode(QAbstractItemView.DragDrop)
        widget.setDragDropOverwriteMode(False)
        widget.setDefaultDropAction(Qt.MoveAction)
        widget.setSelectionMode(QAbstractItemView.MultiSelection)
Beispiel #7
0
class ModelerDialog(BASE, WIDGET):
    ALG_ITEM = 'ALG_ITEM'
    PROVIDER_ITEM = 'PROVIDER_ITEM'
    GROUP_ITEM = 'GROUP_ITEM'

    NAME_ROLE = Qt.UserRole
    TAG_ROLE = Qt.UserRole + 1
    TYPE_ROLE = Qt.UserRole + 2

    CANVAS_SIZE = 4000

    update_model = pyqtSignal()

    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        self._variables_scope = None

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(
            self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.propertiesDock.setWindowTitle(self.tr("Model Properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                    | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QgsProcessingToolboxTreeView(
            None, QgsApplication.processingRegistry())
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(
            self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.variables_dock = QgsDockWidget(self)
        self.variables_dock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.variables_dock.setObjectName("variablesDock")
        self.variables_dock_contents = QWidget()
        vl_v = QVBoxLayout()
        vl_v.setContentsMargins(0, 0, 0, 0)
        self.variables_editor = QgsVariableEditorWidget()
        vl_v.addWidget(self.variables_editor)
        self.variables_dock_contents.setLayout(vl_v)
        self.variables_dock.setWidget(self.variables_dock_contents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.variables_dock)
        self.variables_dock.setWindowTitle(self.tr("Variables"))
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.tabifyDockWidget(self.propertiesDock, self.variables_dock)
        self.variables_editor.scopeChanged.connect(self.variables_changed)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions()
                                | QMainWindow.GroupedDragging)
        except:
            pass

        if iface is not None:
            self.mToolbar.setIconSize(iface.iconSize())
            self.setStyleSheet(iface.mainWindow().styleSheet())

        self.toolbutton_export_to_script = QToolButton()
        self.toolbutton_export_to_script.setPopupMode(QToolButton.InstantPopup)
        self.export_to_script_algorithm_action = QAction(
            QCoreApplication.translate('ModelerDialog',
                                       'Export as Script Algorithm…'))
        self.toolbutton_export_to_script.addActions(
            [self.export_to_script_algorithm_action])
        self.mToolbar.insertWidget(self.mActionExportImage,
                                   self.toolbutton_export_to_script)
        self.export_to_script_algorithm_action.triggered.connect(
            self.export_as_script_algorithm)

        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionSaveInProject.setIcon(
            QgsApplication.getThemeIcon('/mAddToProject.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        self.toolbutton_export_to_script.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.setWindowFlags(Qt.WindowMinimizeButtonHint
                            | Qt.WindowMaximizeButtonHint
                            | Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(
            settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(
            settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(
            QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96,
                        QgsApplication.desktop().logicalDpiX() / 96)

        def _dragEnterEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            def alg_dropped(algorithm_id, pos):
                alg = QgsApplication.processingRegistry().createAlgorithmById(
                    algorithm_id)
                if alg is not None:
                    self._addAlgorithm(alg, pos)
                else:
                    assert False, algorithm_id

            def input_dropped(id, pos):
                if id in [
                        param.id() for param in QgsApplication.instance().
                        processingRegistry().parameterTypes()
                ]:
                    self.addInputOfType(itemId, pos)

            if event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                data = event.mimeData().data(
                    'application/x-vnd.qgis.qgis.algorithmid')
                stream = QDataStream(data, QIODevice.ReadOnly)
                algorithm_id = stream.readQString()
                QTimer.singleShot(
                    0,
                    lambda id=algorithm_id, pos=self.view.mapToScene(event.pos(
                    )): alg_dropped(id, pos))
                event.accept()
            elif event.mimeData().hasText():
                itemId = event.mimeData().text()
                QTimer.singleShot(0,
                                  lambda id=itemId, pos=self.view.mapToScene(
                                      event.pos()): input_dropped(id, pos))
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(
                    self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(
                    self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        self.algorithms_model = ModelerToolboxModel(
            self, QgsApplication.processingRegistry())
        self.algorithmTree.setToolboxProxyModel(self.algorithms_model)
        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        filters = QgsProcessingToolboxProxyModel.Filters(
            QgsProcessingToolboxProxyModel.FilterModeler)
        if ProcessingConfig.getSetting(
                ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES):
            filters |= QgsProcessingToolboxProxyModel.FilterShowKnownIssues
        self.algorithmTree.setFilters(filters)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(
                QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionSaveInProject.triggered.connect(self.saveInProject)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(
                QgsApplication.processingRegistry().providerById('model'))
        self.update_variables_gui()

        self.fillInputsTree()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False

    def closeEvent(self, evt):
        settings = QgsSettings()
        settings.setValue("/Processing/stateModeler", self.saveState())
        settings.setValue("/Processing/geometryModeler", self.saveGeometry())

        if self.hasChanged:
            ret = QMessageBox.question(
                self, self.tr('Save Model?'),
                self.
                tr('There are unsaved changes in this model. Do you want to keep those?'
                   ),
                QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard,
                QMessageBox.Cancel)

            if ret == QMessageBox.Save:
                self.saveModel(False)
                evt.accept()
            elif ret == QMessageBox.Discard:
                evt.accept()
            else:
                evt.ignore()
        else:
            evt.accept()

    def editHelp(self):
        alg = self.model
        dlg = HelpEditionDialog(alg)
        dlg.exec_()
        if dlg.descriptions:
            self.model.setHelpContent(dlg.descriptions)
            self.hasChanged = True

    def update_variables_gui(self):
        variables_scope = QgsExpressionContextScope(self.tr('Model Variables'))
        for k, v in self.model.variables().items():
            variables_scope.setVariable(k, v)
        variables_context = QgsExpressionContext()
        variables_context.appendScope(variables_scope)
        self.variables_editor.setContext(variables_context)
        self.variables_editor.setEditableScopeIndex(0)

    def variables_changed(self):
        self.model.setVariables(self.variables_editor.variablesInActiveScope())

    def runModel(self):
        if len(self.model.childAlgorithms()) == 0:
            self.bar.pushMessage(
                "",
                self.
                tr("Model doesn't contain any algorithm and/or parameter and can't be executed"
                   ),
                level=Qgis.Warning,
                duration=5)
            return

        dlg = AlgorithmDialog(self.model.create(), parent=iface.mainWindow())
        dlg.exec_()

    def save(self):
        self.saveModel(False)

    def saveAs(self):
        self.saveModel(True)

    def saveInProject(self):
        if not self.can_save():
            return

        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        self.model.setSourceFilePath(None)

        project_provider = QgsApplication.processingRegistry().providerById(
            PROJECT_PROVIDER_ID)
        project_provider.add_model(self.model)

        self.update_model.emit()
        self.bar.pushMessage("",
                             self.tr("Model was saved inside current project"),
                             level=Qgis.Success,
                             duration=5)

        self.hasChanged = False
        QgsProject.instance().setDirty(True)

    def zoomIn(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomOut(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)
        factor = 1 / factor

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomActual(self):
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))
        self.view.resetTransform()
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96,
                        QgsApplication.desktop().logicalDpiX() / 96)
        self.view.centerOn(point)

    def zoomToItems(self):
        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        self.view.fitInView(totalRect, Qt.KeepAspectRatio)

    def exportAsImage(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As Image'), '',
            self.tr('PNG files (*.png *.PNG)'))
        if not filename:
            return

        if not filename.lower().endswith('.png'):
            filename += '.png'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        imgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        img = QImage(totalRect.width(), totalRect.height(),
                     QImage.Format_ARGB32_Premultiplied)
        img.fill(Qt.white)
        painter = QPainter()
        painter.setRenderHint(QPainter.Antialiasing)
        painter.begin(img)
        self.scene.render(painter, imgRect, totalRect)
        painter.end()

        img.save(filename)

        self.bar.pushMessage(
            "",
            self.tr(
                "Successfully exported model as image to <a href=\"{}\">{}</a>"
            ).format(
                QUrl.fromLocalFile(filename).toString(),
                QDir.toNativeSeparators(filename)),
            level=Qgis.Success,
            duration=5)
        self.repaintModel(controls=True)

    def exportAsPdf(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As PDF'), '',
            self.tr('PDF files (*.pdf *.PDF)'))
        if not filename:
            return

        if not filename.lower().endswith('.pdf'):
            filename += '.pdf'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        printerRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        printer = QPrinter()
        printer.setOutputFormat(QPrinter.PdfFormat)
        printer.setOutputFileName(filename)
        printer.setPaperSize(QSizeF(printerRect.width(), printerRect.height()),
                             QPrinter.DevicePixel)
        printer.setFullPage(True)

        painter = QPainter(printer)
        self.scene.render(painter, printerRect, totalRect)
        painter.end()

        self.bar.pushMessage(
            "",
            self.tr(
                "Successfully exported model as PDF to <a href=\"{}\">{}</a>").
            format(
                QUrl.fromLocalFile(filename).toString(),
                QDir.toNativeSeparators(filename)),
            level=Qgis.Success,
            duration=5)
        self.repaintModel(controls=True)

    def exportAsSvg(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As SVG'), '',
            self.tr('SVG files (*.svg *.SVG)'))
        if not filename:
            return

        if not filename.lower().endswith('.svg'):
            filename += '.svg'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        svgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        svg = QSvgGenerator()
        svg.setFileName(filename)
        svg.setSize(QSize(totalRect.width(), totalRect.height()))
        svg.setViewBox(svgRect)
        svg.setTitle(self.model.displayName())

        painter = QPainter(svg)
        self.scene.render(painter, svgRect, totalRect)
        painter.end()

        self.bar.pushMessage(
            "",
            self.tr(
                "Successfully exported model as SVG to <a href=\"{}\">{}</a>").
            format(
                QUrl.fromLocalFile(filename).toString(),
                QDir.toNativeSeparators(filename)),
            level=Qgis.Success,
            duration=5)
        self.repaintModel(controls=True)

    def exportAsPython(self):
        filename, filter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As Python Script'), '',
            self.tr('Processing scripts (*.py *.PY)'))
        if not filename:
            return

        if not filename.lower().endswith('.py'):
            filename += '.py'

        text = self.model.asPythonCode()
        with codecs.open(filename, 'w', encoding='utf-8') as fout:
            fout.write(text)

        self.bar.pushMessage(
            "",
            self.
            tr("Successfully exported model as python script to <a href=\"{}\">{}</a>"
               ).format(
                   QUrl.fromLocalFile(filename).toString(),
                   QDir.toNativeSeparators(filename)),
            level=Qgis.Success,
            duration=5)

    def can_save(self):
        """
        Tests whether a model can be saved, or if it is not yet valid
        :return: bool
        """
        if str(self.textName.text()).strip() == '':
            self.bar.pushWarning(
                "", self.tr('Please a enter model name before saving'))
            return False

        return True

    def saveModel(self, saveAs):
        if not self.can_save():
            return
        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        if self.model.sourceFilePath() and not saveAs:
            filename = self.model.sourceFilePath()
        else:
            filename, filter = QFileDialog.getSaveFileName(
                self, self.tr('Save Model'),
                ModelerUtils.modelsFolders()[0],
                self.tr('Processing models (*.model3 *.MODEL3)'))
            if filename:
                if not filename.endswith('.model3'):
                    filename += '.model3'
                self.model.setSourceFilePath(filename)
        if filename:
            if not self.model.toFile(filename):
                if saveAs:
                    QMessageBox.warning(
                        self, self.tr('I/O error'),
                        self.tr('Unable to save edits. Reason:\n {0}').format(
                            str(sys.exc_info()[1])))
                else:
                    QMessageBox.warning(
                        self, self.tr("Can't save model"),
                        QCoreApplication.
                        translate('QgsPluginInstallerInstallingDialog', (
                            "This model can't be saved in its original location (probably you do not "
                            "have permission to do it). Please, use the 'Save as…' option."
                        )))
                return
            self.update_model.emit()
            if saveAs:
                self.bar.pushMessage(
                    "",
                    self.tr(
                        "Model was correctly saved to <a href=\"{}\">{}</a>").
                    format(
                        QUrl.fromLocalFile(filename).toString(),
                        QDir.toNativeSeparators(filename)),
                    level=Qgis.Success,
                    duration=5)
            else:
                self.bar.pushMessage("",
                                     self.tr("Model was correctly saved"),
                                     level=Qgis.Success,
                                     duration=5)

            self.hasChanged = False

    def openModel(self):
        filename, selected_filter = QFileDialog.getOpenFileName(
            self, self.tr('Open Model'),
            ModelerUtils.modelsFolders()[0],
            self.tr('Processing models (*.model3 *.MODEL3)'))
        if filename:
            self.loadModel(filename)

    def loadModel(self, filename):
        alg = QgsProcessingModelAlgorithm()
        if alg.fromFile(filename):
            self.model = alg
            self.model.setProvider(
                QgsApplication.processingRegistry().providerById('model'))
            self.textGroup.setText(alg.group())
            self.textName.setText(alg.name())
            self.repaintModel()

            self.update_variables_gui()

            self.view.centerOn(0, 0)
            self.hasChanged = False
        else:
            QgsMessageLog.logMessage(
                self.tr('Could not load model {0}').format(filename),
                self.tr('Processing'), Qgis.Critical)
            QMessageBox.critical(
                self, self.tr('Open Model'),
                self.tr('The selected model could not be loaded.\n'
                        'See the log for more information.'))

    def repaintModel(self, controls=True):
        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(
            QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))
        self.scene.paintModel(self.model, controls)
        self.view.setScene(self.scene)

    def addInput(self):
        item = self.inputsTree.currentItem()
        param = item.data(0, Qt.UserRole)
        self.addInputOfType(param)

    def addInputOfType(self, paramType, pos=None):
        dlg = ModelerParameterDefinitionDialog(self.model, paramType)
        dlg.exec_()
        if dlg.param is not None:
            if pos is None:
                pos = self.getPositionForParameterItem()
            if isinstance(pos, QPoint):
                pos = QPointF(pos)
            component = QgsProcessingModelParameter(dlg.param.name())
            component.setDescription(dlg.param.name())
            component.setPosition(pos)
            self.model.addModelParameter(dlg.param, component)
            self.repaintModel()
            # self.view.ensureVisible(self.scene.getLastParameterItem())
            self.hasChanged = True

    def getPositionForParameterItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if len(self.model.parameterComponents()) > 0:
            maxX = max([
                i.position().x()
                for i in list(self.model.parameterComponents().values())
            ])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
        else:
            newX = MARGIN + BOX_WIDTH / 2
        return QPointF(newX, MARGIN + BOX_HEIGHT / 2)

    def fillInputsTree(self):
        icon = QIcon(os.path.join(pluginPath, 'images', 'input.svg'))
        parametersItem = QTreeWidgetItem()
        parametersItem.setText(0, self.tr('Parameters'))
        sortedParams = sorted(
            QgsApplication.instance().processingRegistry().parameterTypes(),
            key=lambda pt: pt.name())
        for param in sortedParams:
            if param.flags() & QgsProcessingParameterType.ExposeToModeler:
                paramItem = QTreeWidgetItem()
                paramItem.setText(0, param.name())
                paramItem.setData(0, Qt.UserRole, param.id())
                paramItem.setIcon(0, icon)
                paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable
                                   | Qt.ItemIsDragEnabled)
                paramItem.setToolTip(0, param.description())
                parametersItem.addChild(paramItem)
        self.inputsTree.addTopLevelItem(parametersItem)
        parametersItem.setExpanded(True)

    def addAlgorithm(self):
        algorithm = self.algorithmTree.selectedAlgorithm()
        if algorithm is not None:
            alg = QgsApplication.processingRegistry().createAlgorithmById(
                algorithm.id())
            self._addAlgorithm(alg)

    def _addAlgorithm(self, alg, pos=None):
        dlg = ModelerParametersDialog(alg, self.model)
        if dlg.exec_():
            alg = dlg.createAlgorithm()
            if pos is None:
                alg.setPosition(self.getPositionForAlgorithmItem())
            else:
                alg.setPosition(pos)
            from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
            for i, out in enumerate(alg.modelOutputs()):
                alg.modelOutput(out).setPosition(
                    alg.position() +
                    QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
                            ModelerGraphicItem.BOX_HEIGHT))
            self.model.addChildAlgorithm(alg)
            self.repaintModel()
            self.hasChanged = True

    def getPositionForAlgorithmItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if self.model.childAlgorithms():
            maxX = max([
                alg.position().x()
                for alg in list(self.model.childAlgorithms().values())
            ])
            maxY = max([
                alg.position().y()
                for alg in list(self.model.childAlgorithms().values())
            ])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
            newY = min(MARGIN + BOX_HEIGHT + maxY,
                       self.CANVAS_SIZE - BOX_HEIGHT)
        else:
            newX = MARGIN + BOX_WIDTH / 2
            newY = MARGIN * 2 + BOX_HEIGHT + BOX_HEIGHT / 2
        return QPointF(newX, newY)

    def export_as_script_algorithm(self):
        dlg = ScriptEditorDialog(None)

        dlg.editor.setText('\n'.join(
            self.model.asPythonCode(
                QgsProcessing.PythonQgsProcessingAlgorithmSubclass, 4)))
        dlg.show()
Beispiel #8
0
    def __init__(self, alg):
        super(AlgorithmDialogBase, self).__init__(iface.mainWindow() if iface else None)
        self.setupUi(self)

        # don't collapse parameters panel
        self.splitter.setCollapsible(0, False)

        # add collapse button to splitter
        splitterHandle = self.splitter.handle(1)
        handleLayout = QVBoxLayout()
        handleLayout.setContentsMargins(0, 0, 0, 0)
        self.btnCollapse = QToolButton(splitterHandle)
        self.btnCollapse.setAutoRaise(True)
        self.btnCollapse.setFixedSize(12, 12)
        self.btnCollapse.setCursor(Qt.ArrowCursor)
        handleLayout.addWidget(self.btnCollapse)
        handleLayout.addStretch()
        splitterHandle.setLayout(handleLayout)

        self.settings = QgsSettings()
        self.splitter.restoreState(self.settings.value("/Processing/dialogBaseSplitter", QByteArray()))
        self.restoreGeometry(self.settings.value("/Processing/dialogBase", QByteArray()))
        self.splitterState = self.splitter.saveState()
        self.splitterChanged(0, 0)

        self.executed = False
        self.mainWidget = None
        self.alg = alg

        self.setWindowTitle(self.alg.displayName())

        self.buttonBox.rejected.connect(self.reject)
        self.buttonBox.accepted.connect(self.accept)

        # Rename OK button to Run
        self.btnRun = self.buttonBox.button(QDialogButtonBox.Ok)
        self.btnRun.setText(self.tr('Run'))

        self.buttonCancel.setEnabled(False)

        self.btnClose = self.buttonBox.button(QDialogButtonBox.Close)

        self.buttonBox.helpRequested.connect(self.openHelp)

        self.btnCollapse.clicked.connect(self.toggleCollapsed)
        self.splitter.splitterMoved.connect(self.splitterChanged)

        # desktop = QDesktopWidget()
        # if desktop.physicalDpiX() > 96:
        # self.txtHelp.setZoomFactor(desktop.physicalDpiX() / 96)

        algHelp = self.formatHelp(self.alg)
        if algHelp is None:
            self.textShortHelp.hide()
        else:
            self.textShortHelp.document().setDefaultStyleSheet('''.summary { margin-left: 10px; margin-right: 10px; }
                                                    h2 { color: #555555; padding-bottom: 15px; }
                                                    a { text-decoration: none; color: #3498db; font-weight: bold; }
                                                    p { color: #666666; }
                                                    b { color: #333333; }
                                                    dl dd { margin-bottom: 5px; }''')
            self.textShortHelp.setHtml(algHelp)

        def linkClicked(url):
            webbrowser.open(url.toString())

        self.textShortHelp.anchorClicked.connect(linkClicked)

        self.showDebug = ProcessingConfig.getSetting(
            ProcessingConfig.SHOW_DEBUG_IN_DIALOG)
Beispiel #9
0
    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        self._variables_scope = None

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(
            self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.propertiesDock.setWindowTitle(self.tr("Model Properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                    | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QgsProcessingToolboxTreeView(
            None, QgsApplication.processingRegistry())
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(
            self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.variables_dock = QgsDockWidget(self)
        self.variables_dock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.variables_dock.setObjectName("variablesDock")
        self.variables_dock_contents = QWidget()
        vl_v = QVBoxLayout()
        vl_v.setContentsMargins(0, 0, 0, 0)
        self.variables_editor = QgsVariableEditorWidget()
        vl_v.addWidget(self.variables_editor)
        self.variables_dock_contents.setLayout(vl_v)
        self.variables_dock.setWidget(self.variables_dock_contents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.variables_dock)
        self.variables_dock.setWindowTitle(self.tr("Variables"))
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.tabifyDockWidget(self.propertiesDock, self.variables_dock)
        self.variables_editor.scopeChanged.connect(self.variables_changed)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions()
                                | QMainWindow.GroupedDragging)
        except:
            pass

        if iface is not None:
            self.mToolbar.setIconSize(iface.iconSize())
            self.setStyleSheet(iface.mainWindow().styleSheet())

        self.toolbutton_export_to_script = QToolButton()
        self.toolbutton_export_to_script.setPopupMode(QToolButton.InstantPopup)
        self.export_to_script_algorithm_action = QAction(
            QCoreApplication.translate('ModelerDialog',
                                       'Export as Script Algorithm…'))
        self.toolbutton_export_to_script.addActions(
            [self.export_to_script_algorithm_action])
        self.mToolbar.insertWidget(self.mActionExportImage,
                                   self.toolbutton_export_to_script)
        self.export_to_script_algorithm_action.triggered.connect(
            self.export_as_script_algorithm)

        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionSaveInProject.setIcon(
            QgsApplication.getThemeIcon('/mAddToProject.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        self.toolbutton_export_to_script.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.setWindowFlags(Qt.WindowMinimizeButtonHint
                            | Qt.WindowMaximizeButtonHint
                            | Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(
            settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(
            settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(
            QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96,
                        QgsApplication.desktop().logicalDpiX() / 96)

        def _dragEnterEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            def alg_dropped(algorithm_id, pos):
                alg = QgsApplication.processingRegistry().createAlgorithmById(
                    algorithm_id)
                if alg is not None:
                    self._addAlgorithm(alg, pos)
                else:
                    assert False, algorithm_id

            def input_dropped(id, pos):
                if id in [
                        param.id() for param in QgsApplication.instance().
                        processingRegistry().parameterTypes()
                ]:
                    self.addInputOfType(itemId, pos)

            if event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                data = event.mimeData().data(
                    'application/x-vnd.qgis.qgis.algorithmid')
                stream = QDataStream(data, QIODevice.ReadOnly)
                algorithm_id = stream.readQString()
                QTimer.singleShot(
                    0,
                    lambda id=algorithm_id, pos=self.view.mapToScene(event.pos(
                    )): alg_dropped(id, pos))
                event.accept()
            elif event.mimeData().hasText():
                itemId = event.mimeData().text()
                QTimer.singleShot(0,
                                  lambda id=itemId, pos=self.view.mapToScene(
                                      event.pos()): input_dropped(id, pos))
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat(
                    'application/x-vnd.qgis.qgis.algorithmid'):
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(
                    self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(
                    self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        self.algorithms_model = ModelerToolboxModel(
            self, QgsApplication.processingRegistry())
        self.algorithmTree.setToolboxProxyModel(self.algorithms_model)
        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        filters = QgsProcessingToolboxProxyModel.Filters(
            QgsProcessingToolboxProxyModel.FilterModeler)
        if ProcessingConfig.getSetting(
                ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES):
            filters |= QgsProcessingToolboxProxyModel.FilterShowKnownIssues
        self.algorithmTree.setFilters(filters)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(
                QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionSaveInProject.triggered.connect(self.saveInProject)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(
                QgsApplication.processingRegistry().providerById('model'))
        self.update_variables_gui()

        self.fillInputsTree()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False
Beispiel #10
0
class ModelerDialog(BASE, WIDGET):
    ALG_ITEM = 'ALG_ITEM'
    PROVIDER_ITEM = 'PROVIDER_ITEM'
    GROUP_ITEM = 'GROUP_ITEM'

    NAME_ROLE = Qt.UserRole
    TAG_ROLE = Qt.UserRole + 1
    TYPE_ROLE = Qt.UserRole + 2

    CANVAS_SIZE = 4000

    update_model = pyqtSignal()

    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        self._variables_scope = None

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(
            QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.propertiesDock.setWindowTitle(self.tr("Model Properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QgsProcessingToolboxTreeView(None,
                                                          QgsApplication.processingRegistry())
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.variables_dock = QgsDockWidget(self)
        self.variables_dock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.variables_dock.setObjectName("variablesDock")
        self.variables_dock_contents = QWidget()
        vl_v = QVBoxLayout()
        vl_v.setContentsMargins(0, 0, 0, 0)
        self.variables_editor = QgsVariableEditorWidget()
        vl_v.addWidget(self.variables_editor)
        self.variables_dock_contents.setLayout(vl_v)
        self.variables_dock.setWidget(self.variables_dock_contents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.variables_dock)
        self.variables_dock.setWindowTitle(self.tr("Variables"))
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.tabifyDockWidget(self.propertiesDock, self.variables_dock)
        self.variables_editor.scopeChanged.connect(self.variables_changed)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions() | QMainWindow.GroupedDragging)
        except:
            pass

        if iface is not None:
            self.mToolbar.setIconSize(iface.iconSize())
            self.setStyleSheet(iface.mainWindow().styleSheet())

        self.toolbutton_export_to_script = QToolButton()
        self.toolbutton_export_to_script.setPopupMode(QToolButton.InstantPopup)
        self.export_to_script_algorithm_action = QAction(QCoreApplication.translate('ModelerDialog', 'Export as Script Algorithm…'))
        self.toolbutton_export_to_script.addActions([self.export_to_script_algorithm_action])
        self.mToolbar.insertWidget(self.mActionExportImage, self.toolbutton_export_to_script)
        self.export_to_script_algorithm_action.triggered.connect(self.export_as_script_algorithm)

        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionSaveInProject.setIcon(
            QgsApplication.getThemeIcon('/mAddToProject.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        self.toolbutton_export_to_script.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.setWindowFlags(Qt.WindowMinimizeButtonHint |
                            Qt.WindowMaximizeButtonHint |
                            Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96, QgsApplication.desktop().logicalDpiX() / 96)

        def _dragEnterEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            def alg_dropped(algorithm_id, pos):
                alg = QgsApplication.processingRegistry().createAlgorithmById(algorithm_id)
                if alg is not None:
                    self._addAlgorithm(alg, pos)
                else:
                    assert False, algorithm_id

            def input_dropped(id, pos):
                if id in [param.id() for param in QgsApplication.instance().processingRegistry().parameterTypes()]:
                    self.addInputOfType(itemId, pos)

            if event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                data = event.mimeData().data('application/x-vnd.qgis.qgis.algorithmid')
                stream = QDataStream(data, QIODevice.ReadOnly)
                algorithm_id = stream.readQString()
                QTimer.singleShot(0, lambda id=algorithm_id, pos=self.view.mapToScene(event.pos()): alg_dropped(id, pos))
                event.accept()
            elif event.mimeData().hasText():
                itemId = event.mimeData().text()
                QTimer.singleShot(0, lambda id=itemId, pos=self.view.mapToScene(event.pos()): input_dropped(id, pos))
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        self.algorithms_model = ModelerToolboxModel(self, QgsApplication.processingRegistry())
        self.algorithmTree.setToolboxProxyModel(self.algorithms_model)
        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        filters = QgsProcessingToolboxProxyModel.Filters(QgsProcessingToolboxProxyModel.FilterModeler)
        if ProcessingConfig.getSetting(ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES):
            filters |= QgsProcessingToolboxProxyModel.FilterShowKnownIssues
        self.algorithmTree.setFilters(filters)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionSaveInProject.triggered.connect(self.saveInProject)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
        self.update_variables_gui()

        self.fillInputsTree()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False

    def closeEvent(self, evt):
        settings = QgsSettings()
        settings.setValue("/Processing/stateModeler", self.saveState())
        settings.setValue("/Processing/geometryModeler", self.saveGeometry())

        if self.hasChanged:
            ret = QMessageBox.question(
                self, self.tr('Save Model?'),
                self.tr('There are unsaved changes in this model. Do you want to keep those?'),
                QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)

            if ret == QMessageBox.Save:
                self.saveModel(False)
                evt.accept()
            elif ret == QMessageBox.Discard:
                evt.accept()
            else:
                evt.ignore()
        else:
            evt.accept()

    def editHelp(self):
        alg = self.model
        dlg = HelpEditionDialog(alg)
        dlg.exec_()
        if dlg.descriptions:
            self.model.setHelpContent(dlg.descriptions)
            self.hasChanged = True

    def update_variables_gui(self):
        variables_scope = QgsExpressionContextScope(self.tr('Model Variables'))
        for k, v in self.model.variables().items():
            variables_scope.setVariable(k, v)
        variables_context = QgsExpressionContext()
        variables_context.appendScope(variables_scope)
        self.variables_editor.setContext(variables_context)
        self.variables_editor.setEditableScopeIndex(0)

    def variables_changed(self):
        self.model.setVariables(self.variables_editor.variablesInActiveScope())

    def runModel(self):
        if len(self.model.childAlgorithms()) == 0:
            self.bar.pushMessage("", self.tr("Model doesn't contain any algorithm and/or parameter and can't be executed"), level=Qgis.Warning, duration=5)
            return

        dlg = AlgorithmDialog(self.model.create(), parent=iface.mainWindow())
        dlg.exec_()

    def save(self):
        self.saveModel(False)

    def saveAs(self):
        self.saveModel(True)

    def saveInProject(self):
        if not self.can_save():
            return

        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        self.model.setSourceFilePath(None)

        project_provider = QgsApplication.processingRegistry().providerById(PROJECT_PROVIDER_ID)
        project_provider.add_model(self.model)

        self.update_model.emit()
        self.bar.pushMessage("", self.tr("Model was saved inside current project"), level=Qgis.Success, duration=5)

        self.hasChanged = False
        QgsProject.instance().setDirty(True)

    def zoomIn(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomOut(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)
        factor = 1 / factor

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomActual(self):
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))
        self.view.resetTransform()
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96, QgsApplication.desktop().logicalDpiX() / 96)
        self.view.centerOn(point)

    def zoomToItems(self):
        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        self.view.fitInView(totalRect, Qt.KeepAspectRatio)

    def exportAsImage(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As Image'), '',
                                                           self.tr('PNG files (*.png *.PNG)'))
        if not filename:
            return

        if not filename.lower().endswith('.png'):
            filename += '.png'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        imgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        img = QImage(totalRect.width(), totalRect.height(),
                     QImage.Format_ARGB32_Premultiplied)
        img.fill(Qt.white)
        painter = QPainter()
        painter.setRenderHint(QPainter.Antialiasing)
        painter.begin(img)
        self.scene.render(painter, imgRect, totalRect)
        painter.end()

        img.save(filename)

        self.bar.pushMessage("", self.tr("Successfully exported model as image to <a href=\"{}\">{}</a>").format(QUrl.fromLocalFile(filename).toString(), QDir.toNativeSeparators(filename)), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsPdf(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As PDF'), '',
                                                           self.tr('PDF files (*.pdf *.PDF)'))
        if not filename:
            return

        if not filename.lower().endswith('.pdf'):
            filename += '.pdf'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        printerRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        printer = QPrinter()
        printer.setOutputFormat(QPrinter.PdfFormat)
        printer.setOutputFileName(filename)
        printer.setPaperSize(QSizeF(printerRect.width(), printerRect.height()), QPrinter.DevicePixel)
        printer.setFullPage(True)

        painter = QPainter(printer)
        self.scene.render(painter, printerRect, totalRect)
        painter.end()

        self.bar.pushMessage("", self.tr("Successfully exported model as PDF to <a href=\"{}\">{}</a>").format(QUrl.fromLocalFile(filename).toString(), QDir.toNativeSeparators(filename)), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsSvg(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As SVG'), '',
                                                           self.tr('SVG files (*.svg *.SVG)'))
        if not filename:
            return

        if not filename.lower().endswith('.svg'):
            filename += '.svg'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        svgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        svg = QSvgGenerator()
        svg.setFileName(filename)
        svg.setSize(QSize(totalRect.width(), totalRect.height()))
        svg.setViewBox(svgRect)
        svg.setTitle(self.model.displayName())

        painter = QPainter(svg)
        self.scene.render(painter, svgRect, totalRect)
        painter.end()

        self.bar.pushMessage("", self.tr("Successfully exported model as SVG to <a href=\"{}\">{}</a>").format(QUrl.fromLocalFile(filename).toString(), QDir.toNativeSeparators(filename)), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsPython(self):
        filename, filter = QFileDialog.getSaveFileName(self,
                                                       self.tr('Save Model As Python Script'), '',
                                                       self.tr('Processing scripts (*.py *.PY)'))
        if not filename:
            return

        if not filename.lower().endswith('.py'):
            filename += '.py'

        text = self.model.asPythonCode()
        with codecs.open(filename, 'w', encoding='utf-8') as fout:
            fout.write(text)

        self.bar.pushMessage("", self.tr("Successfully exported model as python script to <a href=\"{}\">{}</a>").format(QUrl.fromLocalFile(filename).toString(), QDir.toNativeSeparators(filename)), level=Qgis.Success, duration=5)

    def can_save(self):
        """
        Tests whether a model can be saved, or if it is not yet valid
        :return: bool
        """
        if str(self.textName.text()).strip() == '':
            self.bar.pushWarning(
                "", self.tr('Please a enter model name before saving')
            )
            return False

        return True

    def saveModel(self, saveAs):
        if not self.can_save():
            return
        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        if self.model.sourceFilePath() and not saveAs:
            filename = self.model.sourceFilePath()
        else:
            filename, filter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model'),
                                                           ModelerUtils.modelsFolders()[0],
                                                           self.tr('Processing models (*.model3 *.MODEL3)'))
            if filename:
                if not filename.endswith('.model3'):
                    filename += '.model3'
                self.model.setSourceFilePath(filename)
        if filename:
            if not self.model.toFile(filename):
                if saveAs:
                    QMessageBox.warning(self, self.tr('I/O error'),
                                        self.tr('Unable to save edits. Reason:\n {0}').format(str(sys.exc_info()[1])))
                else:
                    QMessageBox.warning(self, self.tr("Can't save model"), QCoreApplication.translate('QgsPluginInstallerInstallingDialog', (
                        "This model can't be saved in its original location (probably you do not "
                        "have permission to do it). Please, use the 'Save as…' option."))
                    )
                return
            self.update_model.emit()
            if saveAs:
                self.bar.pushMessage("", self.tr("Model was correctly saved to <a href=\"{}\">{}</a>").format(QUrl.fromLocalFile(filename).toString(), QDir.toNativeSeparators(filename)), level=Qgis.Success, duration=5)
            else:
                self.bar.pushMessage("", self.tr("Model was correctly saved"), level=Qgis.Success, duration=5)

            self.hasChanged = False

    def openModel(self):
        filename, selected_filter = QFileDialog.getOpenFileName(self,
                                                                self.tr('Open Model'),
                                                                ModelerUtils.modelsFolders()[0],
                                                                self.tr('Processing models (*.model3 *.MODEL3)'))
        if filename:
            self.loadModel(filename)

    def loadModel(self, filename):
        alg = QgsProcessingModelAlgorithm()
        if alg.fromFile(filename):
            self.model = alg
            self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
            self.textGroup.setText(alg.group())
            self.textName.setText(alg.name())
            self.repaintModel()

            self.update_variables_gui()

            self.view.centerOn(0, 0)
            self.hasChanged = False
        else:
            QgsMessageLog.logMessage(self.tr('Could not load model {0}').format(filename),
                                     self.tr('Processing'),
                                     Qgis.Critical)
            QMessageBox.critical(self, self.tr('Open Model'),
                                 self.tr('The selected model could not be loaded.\n'
                                         'See the log for more information.'))

    def repaintModel(self, controls=True):
        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE,
                                       self.CANVAS_SIZE))
        self.scene.paintModel(self.model, controls)
        self.view.setScene(self.scene)

    def addInput(self):
        item = self.inputsTree.currentItem()
        param = item.data(0, Qt.UserRole)
        self.addInputOfType(param)

    def addInputOfType(self, paramType, pos=None):
        dlg = ModelerParameterDefinitionDialog(self.model, paramType)
        dlg.exec_()
        if dlg.param is not None:
            if pos is None:
                pos = self.getPositionForParameterItem()
            if isinstance(pos, QPoint):
                pos = QPointF(pos)
            component = QgsProcessingModelParameter(dlg.param.name())
            component.setDescription(dlg.param.name())
            component.setPosition(pos)
            self.model.addModelParameter(dlg.param, component)
            self.repaintModel()
            # self.view.ensureVisible(self.scene.getLastParameterItem())
            self.hasChanged = True

    def getPositionForParameterItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if len(self.model.parameterComponents()) > 0:
            maxX = max([i.position().x() for i in list(self.model.parameterComponents().values())])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
        else:
            newX = MARGIN + BOX_WIDTH / 2
        return QPointF(newX, MARGIN + BOX_HEIGHT / 2)

    def fillInputsTree(self):
        icon = QIcon(os.path.join(pluginPath, 'images', 'input.svg'))
        parametersItem = QTreeWidgetItem()
        parametersItem.setText(0, self.tr('Parameters'))
        sortedParams = sorted(QgsApplication.instance().processingRegistry().parameterTypes(), key=lambda pt: pt.name())
        for param in sortedParams:
            if param.flags() & QgsProcessingParameterType.ExposeToModeler:
                paramItem = QTreeWidgetItem()
                paramItem.setText(0, param.name())
                paramItem.setData(0, Qt.UserRole, param.id())
                paramItem.setIcon(0, icon)
                paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsDragEnabled)
                paramItem.setToolTip(0, param.description())
                parametersItem.addChild(paramItem)
        self.inputsTree.addTopLevelItem(parametersItem)
        parametersItem.setExpanded(True)

    def addAlgorithm(self):
        algorithm = self.algorithmTree.selectedAlgorithm()
        if algorithm is not None:
            alg = QgsApplication.processingRegistry().createAlgorithmById(algorithm.id())
            self._addAlgorithm(alg)

    def _addAlgorithm(self, alg, pos=None):
        dlg = ModelerParametersDialog(alg, self.model)
        if dlg.exec_():
            alg = dlg.createAlgorithm()
            if pos is None:
                alg.setPosition(self.getPositionForAlgorithmItem())
            else:
                alg.setPosition(pos)
            from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
            for i, out in enumerate(alg.modelOutputs()):
                alg.modelOutput(out).setPosition(alg.position() + QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
                                                                          ModelerGraphicItem.BOX_HEIGHT))
            self.model.addChildAlgorithm(alg)
            self.repaintModel()
            self.hasChanged = True

    def getPositionForAlgorithmItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if self.model.childAlgorithms():
            maxX = max([alg.position().x() for alg in list(self.model.childAlgorithms().values())])
            maxY = max([alg.position().y() for alg in list(self.model.childAlgorithms().values())])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
            newY = min(MARGIN + BOX_HEIGHT + maxY, self.CANVAS_SIZE -
                       BOX_HEIGHT)
        else:
            newX = MARGIN + BOX_WIDTH / 2
            newY = MARGIN * 2 + BOX_HEIGHT + BOX_HEIGHT / 2
        return QPointF(newX, newY)

    def export_as_script_algorithm(self):
        dlg = ScriptEditorDialog(None)

        dlg.editor.setText('\n'.join(self.model.asPythonCode(QgsProcessing.PythonQgsProcessingAlgorithmSubclass, 4)))
        dlg.show()
Beispiel #11
0
 def addLayer(self, layer, headers, types, features):
     tab = QWidget()
     tab.layer = layer
     p1_vertical = QVBoxLayout(tab)
     p1_vertical.setContentsMargins(0,0,0,0)
     
     table = QTableWidget()
     table.itemSelectionChanged.connect(self.highlight_features)
     table.title = layer.name()
     table.crs = layer.crs()
     table.setColumnCount(len(headers))
     if len(features) > 0:
         table.setRowCount(len(features))
         nbrow = len(features)
         self.loadingWindow.show()
         self.loadingWindow.setLabelText(table.title)
         self.loadingWindow.activateWindow()
         self.loadingWindow.showNormal()
         
         # Table population
         m = 0
         for feature in features:
             n = 0
             for cell in feature.attributes():
                 item = QTableWidgetItem()
                 item.setData(Qt.DisplayRole, cell)
                 item.setFlags(item.flags() ^ Qt.ItemIsEditable)
                 item.feature = feature
                 table.setItem(m, n, item)
                 n += 1
             m += 1
             self.loadingWindow.setValue(int((float(m)/nbrow)*100))  
             QApplication.processEvents()
         
     else:
         table.setRowCount(0)  
                         
     table.setHorizontalHeaderLabels(headers)
     table.horizontalHeader().setSectionsMovable(True)
     
     table.types = types
     table.filter_op = []
     table.filters = []
     for i in range(0, len(headers)):
         table.filters.append('')
         table.filter_op.append(0)
     
     header = table.horizontalHeader()
     header.setContextMenuPolicy(Qt.CustomContextMenu)
     header.customContextMenuRequested.connect(partial(self.filterMenu, table))
         
     table.setSortingEnabled(True)
     
     p1_vertical.addWidget(table)
     
     # Status bar to display informations (ie: area)
     tab.sb = QStatusBar()
     p1_vertical.addWidget(tab.sb)
     
     title = table.title
     # We reduce the title's length to 20 characters
     if len(title)>20:
         title = title[:20]+'...'
     
     # We add the number of elements to the tab's title.
     title += ' ('+str(len(features))+')'
         
     self.tabWidget.addTab(tab, title) # Add the tab to the conatiner
     self.tabWidget.setTabToolTip(self.tabWidget.indexOf(tab), table.title) # Display a tooltip with the layer's full name
Beispiel #12
0
class ModelerDialog(BASE, WIDGET):
    ALG_ITEM = 'ALG_ITEM'
    PROVIDER_ITEM = 'PROVIDER_ITEM'
    GROUP_ITEM = 'GROUP_ITEM'

    NAME_ROLE = Qt.UserRole
    TAG_ROLE = Qt.UserRole + 1
    TYPE_ROLE = Qt.UserRole + 2

    CANVAS_SIZE = 4000

    update_model = pyqtSignal()

    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(
            QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.propertiesDock.setWindowTitle(self.tr("Model properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QTreeWidget(self.scrollAreaWidgetContents_3)
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions() | QMainWindow.GroupedDragging)
        except:
            pass

        self.mToolbar.setIconSize(iface.iconSize())
        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        #self.mActionExportPython.setIcon(
        #    QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.zoom = 1

        self.setWindowFlags(Qt.WindowMinimizeButtonHint |
                            Qt.WindowMaximizeButtonHint |
                            Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)

        def _dragEnterEvent(event):
            if event.mimeData().hasText():
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            if event.mimeData().hasText():
                itemId = event.mimeData().text()
                if itemId in [param.id() for param in QgsApplication.instance().processingRegistry().parameterTypes()]:
                    self.addInputOfType(itemId, event.pos())
                else:
                    alg = QgsApplication.processingRegistry().createAlgorithmById(itemId)
                    if alg is not None:
                        self._addAlgorithm(alg, event.pos())
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText():
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        def _mimeDataAlgorithm(items):
            item = items[0]
            mimeData = None
            if isinstance(item, TreeAlgorithmItem):
                mimeData = QMimeData()
                mimeData.setText(item.alg.id())
            return mimeData

        self.algorithmTree.mimeData = _mimeDataAlgorithm

        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.textChanged)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))

        self.fillInputsTree()
        self.fillTreeUsingProviders()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False

    def closeEvent(self, evt):
        settings = QgsSettings()
        settings.setValue("/Processing/stateModeler", self.saveState())
        settings.setValue("/Processing/geometryModeler", self.saveGeometry())

        if self.hasChanged:
            ret = QMessageBox.question(
                self, self.tr('Save Model?'),
                self.tr('There are unsaved changes in this model. Do you want to keep those?'),
                QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard, QMessageBox.Cancel)

            if ret == QMessageBox.Save:
                self.saveModel(False)
                evt.accept()
            elif ret == QMessageBox.Discard:
                evt.accept()
            else:
                evt.ignore()
        else:
            evt.accept()

    def editHelp(self):
        alg = self.model
        dlg = HelpEditionDialog(alg)
        dlg.exec_()
        if dlg.descriptions:
            self.model.setHelpContent(dlg.descriptions)
            self.hasChanged = True

    def runModel(self):
        if len(self.model.childAlgorithms()) == 0:
            self.bar.pushMessage("", self.tr("Model doesn't contain any algorithm and/or parameter and can't be executed"), level=Qgis.Warning, duration=5)
            return

        dlg = AlgorithmDialog(self.model)
        dlg.exec_()

    def save(self):
        self.saveModel(False)

    def saveAs(self):
        self.saveModel(True)

    def zoomIn(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomOut(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)
        factor = 1 / factor

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomActual(self):
        point = self.view.mapToScene(QPoint(self.view.viewport().width() / 2, self.view.viewport().height() / 2))
        self.view.resetTransform()
        self.view.centerOn(point)

    def zoomToItems(self):
        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        self.view.fitInView(totalRect, Qt.KeepAspectRatio)

    def exportAsImage(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As Image'), '',
                                                           self.tr('PNG files (*.png *.PNG)'))
        if not filename:
            return

        if not filename.lower().endswith('.png'):
            filename += '.png'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        imgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        img = QImage(totalRect.width(), totalRect.height(),
                     QImage.Format_ARGB32_Premultiplied)
        img.fill(Qt.white)
        painter = QPainter()
        painter.setRenderHint(QPainter.Antialiasing)
        painter.begin(img)
        self.scene.render(painter, imgRect, totalRect)
        painter.end()

        img.save(filename)

        self.bar.pushMessage("", self.tr("Model was correctly exported as image"), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsPdf(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As PDF'), '',
                                                           self.tr('PDF files (*.pdf *.PDF)'))
        if not filename:
            return

        if not filename.lower().endswith('.pdf'):
            filename += '.pdf'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        printerRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        printer = QPrinter()
        printer.setOutputFormat(QPrinter.PdfFormat)
        printer.setOutputFileName(filename)
        printer.setPaperSize(QSizeF(printerRect.width(), printerRect.height()), QPrinter.DevicePixel)
        printer.setFullPage(True)

        painter = QPainter(printer)
        self.scene.render(painter, printerRect, totalRect)
        painter.end()

        self.bar.pushMessage("", self.tr("Model was correctly exported as PDF"), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsSvg(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model As SVG'), '',
                                                           self.tr('SVG files (*.svg *.SVG)'))
        if not filename:
            return

        if not filename.lower().endswith('.svg'):
            filename += '.svg'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        svgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        svg = QSvgGenerator()
        svg.setFileName(filename)
        svg.setSize(QSize(totalRect.width(), totalRect.height()))
        svg.setViewBox(svgRect)
        svg.setTitle(self.model.displayName())

        painter = QPainter(svg)
        self.scene.render(painter, svgRect, totalRect)
        painter.end()

        self.bar.pushMessage("", self.tr("Model was correctly exported as SVG"), level=Qgis.Success, duration=5)
        self.repaintModel(controls=True)

    def exportAsPython(self):
        filename, filter = QFileDialog.getSaveFileName(self,
                                                       self.tr('Save Model As Python Script'), '',
                                                       self.tr('Python files (*.py *.PY)'))
        if not filename:
            return

        if not filename.lower().endswith('.py'):
            filename += '.py'

        text = self.model.asPythonCode()
        with codecs.open(filename, 'w', encoding='utf-8') as fout:
            fout.write(text)

        self.bar.pushMessage("", self.tr("Model was correctly exported as python script"), level=Qgis.Success, duration=5)

    def saveModel(self, saveAs):
        if str(self.textGroup.text()).strip() == '' \
                or str(self.textName.text()).strip() == '':
            QMessageBox.warning(
                self, self.tr('Warning'), self.tr('Please enter group and model names before saving')
            )
            return
        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        if self.model.sourceFilePath() and not saveAs:
            filename = self.model.sourceFilePath()
        else:
            filename, filter = QFileDialog.getSaveFileName(self,
                                                           self.tr('Save Model'),
                                                           ModelerUtils.modelsFolders()[0],
                                                           self.tr('Processing models (*.model3)'))
            if filename:
                if not filename.endswith('.model3'):
                    filename += '.model3'
                self.model.setSourceFilePath(filename)
        if filename:
            if not self.model.toFile(filename):
                if saveAs:
                    QMessageBox.warning(self, self.tr('I/O error'),
                                        self.tr('Unable to save edits. Reason:\n {0}').format(str(sys.exc_info()[1])))
                else:
                    QMessageBox.warning(self, self.tr("Can't save model"), QCoreApplication.translate('QgsPluginInstallerInstallingDialog', (
                        "This model can't be saved in its original location (probably you do not "
                        "have permission to do it). Please, use the 'Save as…' option."))
                    )
                return
            self.update_model.emit()
            self.bar.pushMessage("", self.tr("Model was correctly saved"), level=Qgis.Success, duration=5)

            self.hasChanged = False

    def openModel(self):
        filename, selected_filter = QFileDialog.getOpenFileName(self,
                                                                self.tr('Open Model'),
                                                                ModelerUtils.modelsFolders()[0],
                                                                self.tr('Processing models (*.model3 *.MODEL3)'))
        if filename:
            self.loadModel(filename)

    def loadModel(self, filename):
        alg = QgsProcessingModelAlgorithm()
        if alg.fromFile(filename):
            self.model = alg
            self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
            self.textGroup.setText(alg.group())
            self.textName.setText(alg.name())
            self.repaintModel()

            self.view.centerOn(0, 0)
            self.hasChanged = False
        else:
            QgsMessageLog.logMessage(self.tr('Could not load model {0}').format(filename),
                                     self.tr('Processing'),
                                     Qgis.Critical)
            QMessageBox.critical(self, self.tr('Open Model'),
                                 self.tr('The selected model could not be loaded.\n'
                                         'See the log for more information.'))

    def repaintModel(self, controls=True):
        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE,
                                       self.CANVAS_SIZE))
        self.scene.paintModel(self.model, controls)
        self.view.setScene(self.scene)

    def addInput(self):
        item = self.inputsTree.currentItem()
        param = item.data(0, Qt.UserRole)
        self.addInputOfType(param)

    def addInputOfType(self, paramType, pos=None):
        dlg = ModelerParameterDefinitionDialog(self.model, paramType)
        dlg.exec_()
        if dlg.param is not None:
            if pos is None:
                pos = self.getPositionForParameterItem()
            if isinstance(pos, QPoint):
                pos = QPointF(pos)
            component = QgsProcessingModelParameter(dlg.param.name())
            component.setDescription(dlg.param.name())
            component.setPosition(pos)
            self.model.addModelParameter(dlg.param, component)
            self.repaintModel()
            # self.view.ensureVisible(self.scene.getLastParameterItem())
            self.hasChanged = True

    def getPositionForParameterItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if len(self.model.parameterComponents()) > 0:
            maxX = max([i.position().x() for i in list(self.model.parameterComponents().values())])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
        else:
            newX = MARGIN + BOX_WIDTH / 2
        return QPointF(newX, MARGIN + BOX_HEIGHT / 2)

    def textChanged(self):
        text = self.searchBox.text().strip(' ').lower()
        for item in list(self.disabledProviderItems.values()):
            item.setHidden(True)
        self._filterItem(self.algorithmTree.invisibleRootItem(), [t for t in text.split(' ') if t])
        if text:
            self.algorithmTree.expandAll()
            self.disabledWithMatchingAlgs = []
            for provider in QgsApplication.processingRegistry().providers():
                if not provider.isActive():
                    for alg in provider.algorithms():
                        if text in alg.name():
                            self.disabledWithMatchingAlgs.append(provider.id())
                            break
        else:
            self.algorithmTree.collapseAll()

    def _filterItem(self, item, text):
        if (item.childCount() > 0):
            show = False
            for i in range(item.childCount()):
                child = item.child(i)
                showChild = self._filterItem(child, text)
                show = (showChild or show) and item not in list(self.disabledProviderItems.values())
            item.setHidden(not show)
            return show
        elif isinstance(item, (TreeAlgorithmItem, TreeActionItem)):
            # hide if every part of text is not contained somewhere in either the item text or item user role
            item_text = [item.text(0).lower(), item.data(0, ModelerDialog.NAME_ROLE).lower()]
            if isinstance(item, TreeAlgorithmItem):
                item_text.append(item.alg.id().lower())
                if item.alg.shortDescription():
                    item_text.append(item.alg.shortDescription().lower())
                item_text.extend([t.lower() for t in item.data(0, ModelerDialog.TAG_ROLE)])

            hide = bool(text) and not all(
                any(part in t for t in item_text)
                for part in text)

            item.setHidden(hide)
            return not hide
        else:
            item.setHidden(True)
            return False

    def fillInputsTree(self):
        icon = QIcon(os.path.join(pluginPath, 'images', 'input.svg'))
        parametersItem = QTreeWidgetItem()
        parametersItem.setText(0, self.tr('Parameters'))
        sortedParams = sorted(QgsApplication.instance().processingRegistry().parameterTypes(), key=lambda pt: pt.name())
        for param in sortedParams:
            if param.flags() & QgsProcessingParameterType.ExposeToModeler:
                paramItem = QTreeWidgetItem()
                paramItem.setText(0, param.name())
                paramItem.setData(0, Qt.UserRole, param.id())
                paramItem.setIcon(0, icon)
                paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable | Qt.ItemIsDragEnabled)
                paramItem.setToolTip(0, param.description())
                parametersItem.addChild(paramItem)
        self.inputsTree.addTopLevelItem(parametersItem)
        parametersItem.setExpanded(True)

    def addAlgorithm(self):
        item = self.algorithmTree.currentItem()
        if isinstance(item, TreeAlgorithmItem):
            alg = QgsApplication.processingRegistry().createAlgorithmById(item.alg.id())
            self._addAlgorithm(alg)

    def _addAlgorithm(self, alg, pos=None):
        dlg = ModelerParametersDialog(alg, self.model)
        if dlg.exec_():
            alg = dlg.createAlgorithm()
            if pos is None:
                alg.setPosition(self.getPositionForAlgorithmItem())
            else:
                alg.setPosition(pos)
            from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
            for i, out in enumerate(alg.modelOutputs()):
                alg.modelOutput(out).setPosition(alg.position() + QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
                                                                          ModelerGraphicItem.BOX_HEIGHT))
            self.model.addChildAlgorithm(alg)
            self.repaintModel()
            self.hasChanged = True

    def getPositionForAlgorithmItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if self.model.childAlgorithms():
            maxX = max([alg.position().x() for alg in list(self.model.childAlgorithms().values())])
            maxY = max([alg.position().y() for alg in list(self.model.childAlgorithms().values())])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
            newY = min(MARGIN + BOX_HEIGHT + maxY, self.CANVAS_SIZE -
                       BOX_HEIGHT)
        else:
            newX = MARGIN + BOX_WIDTH / 2
            newY = MARGIN * 2 + BOX_HEIGHT + BOX_HEIGHT / 2
        return QPointF(newX, newY)

    def fillTreeUsingProviders(self):
        self.algorithmTree.clear()
        self.disabledProviderItems = {}

        # TODO - replace with proper model for toolbox!

        # first add qgis/native providers, since they create top level groups
        for provider in QgsApplication.processingRegistry().providers():
            if provider.id() in ('qgis', 'native', '3d'):
                self.addAlgorithmsFromProvider(provider, self.algorithmTree.invisibleRootItem())
            else:
                continue
        self.algorithmTree.sortItems(0, Qt.AscendingOrder)

        for provider in QgsApplication.processingRegistry().providers():
            if provider.id() in ('qgis', 'native', '3d'):
                # already added
                continue
            else:
                providerItem = TreeProviderItem(provider, self.algorithmTree, self)

                # insert non-native providers at end of tree, alphabetically
                for i in range(self.algorithmTree.invisibleRootItem().childCount()):
                    child = self.algorithmTree.invisibleRootItem().child(i)
                    if isinstance(child, TreeProviderItem):
                        if child.text(0) > providerItem.text(0):
                            break

                self.algorithmTree.insertTopLevelItem(i + 1, providerItem)

                if not provider.isActive():
                    providerItem.setHidden(True)
                    self.disabledProviderItems[provider.id()] = providerItem

    def addAlgorithmsFromProvider(self, provider, parent):
        groups = {}
        count = 0
        algs = provider.algorithms()
        active = provider.isActive()

        # Add algorithms
        for alg in algs:
            if alg.flags() & QgsProcessingAlgorithm.FlagHideFromModeler:
                continue
            groupItem = None
            if alg.group() in groups:
                groupItem = groups[alg.group()]
            else:
                # check if group already exists
                for i in range(parent.childCount()):
                    if parent.child(i).text(0) == alg.group():
                        groupItem = parent.child(i)
                        groups[alg.group()] = groupItem
                        break

                if not groupItem:
                    groupItem = TreeGroupItem(alg.group())
                    if not active:
                        groupItem.setInactive()
                    if provider.id() in ('qgis', 'native', '3d'):
                        groupItem.setIcon(0, provider.icon())
                    groups[alg.group()] = groupItem
            algItem = TreeAlgorithmItem(alg)
            if not active:
                algItem.setForeground(0, Qt.darkGray)
            groupItem.addChild(algItem)
            count += 1

        text = provider.name()

        if not provider.id() in ('qgis', 'native', '3d'):
            if not active:
                def activateProvider():
                    self.activateProvider(provider.id())

                label = QLabel(text + "&nbsp;&nbsp;&nbsp;&nbsp;<a href='%s'>Activate</a>")
                label.setStyleSheet("QLabel {background-color: white; color: grey;}")
                label.linkActivated.connect(activateProvider)
                self.algorithmTree.setItemWidget(parent, 0, label)
            else:
                parent.setText(0, text)

        for group, groupItem in sorted(groups.items(), key=operator.itemgetter(1)):
            parent.addChild(groupItem)

        if not provider.id() in ('qgis', 'native', '3d'):
            parent.setHidden(parent.childCount() == 0)
class ListMultiSelectWidget(QGroupBox):

    """Widget to show two parallel lists and move elements between the two

    usage from code:
        self.myWidget = ListMultiSelectWidget(title='myTitle')
        self.myLayout.insertWidget(1, self.myWidget)
    usage from designer:
        insert a QGroupBox in your UI file
        optionally give a title to the QGroupBox
        promote it to ListMultiSelectWidget
    """

    selection_changed = pyqtSignal()

    def __init__(self, parent=None, title=None):
        QGroupBox.__init__(self)
        self.setTitle(title)

        self.selected_widget = None
        self.deselected_widget = None
        self._setupUI()

        # connect actions
        self.select_all_btn.clicked.connect(self._select_all)
        self.deselect_all_btn.clicked.connect(self._deselect_all)
        self.select_btn.clicked.connect(self._select)
        self.deselect_btn.clicked.connect(self._deselect)

        self.deselected_widget.itemDoubleClicked.connect(self._select)
        self.selected_widget.itemDoubleClicked.connect(self._deselect)

    def get_selected_items(self):
        """
        :return list with all the selected items text
        """
        return self._get_items(self.selected_widget)

    def get_deselected_items(self):
        """
        :return list with all the deselected items text
        """
        return self._get_items(self.deselected_widget)

    def add_selected_items(self, items):
        """
        :param items list of strings to be added in the selected list
        """
        self._add_items(self.selected_widget, items)

    def add_deselected_items(self, items):
        """
        :param items list of strings to be added in the deselected list
        """
        self._add_items(self.deselected_widget, items)

    def set_selected_items(self, items):
        """
        :param items list of strings to be set as the selected list
        """
        self._set_items(self.selected_widget, items)

    def set_deselected_items(self, items):
        """
        :param items list of strings to be set as the deselected list
        """
        self._set_items(self.deselected_widget, items)

    def clear(self):
        """
        removes all items from selected and deselected
        """
        self.set_selected_items([])
        self.set_deselected_items([])

    def addItem(self, item):
        """
        This is for Processing
        :param item: string to be added in the deselected list
        """
        self.add_deselected_items([item])

    def addItems(self, items):
        """
        This is for Processing
        :param items: list of strings to be added in the deselected list
        """
        self.add_deselected_items(items)

    def _get_items(self, widget):
        for i in range(widget.count()):
            yield widget.item(i).text()

    def _set_items(self, widget, items):
        widget.clear()
        self._add_items(widget, items)

    def _add_items(self, widget, items):
        widget.addItems(items)

    def _select_all(self):
        self.deselected_widget.selectAll()
        self._do_move(self.deselected_widget, self.selected_widget)

    def _deselect_all(self):
        self.selected_widget.selectAll()
        self._do_move(self.selected_widget, self.deselected_widget)

    def _select(self):
        self._do_move(self.deselected_widget, self.selected_widget)

    def _deselect(self):
        self._do_move(self.selected_widget, self.deselected_widget)

    def _do_move(self, fromList, toList):
        for item in fromList.selectedItems():
            prev_from_item = fromList.item(fromList.row(item) - 1)
            toList.addItem(fromList.takeItem(fromList.row(item)))
            fromList.scrollToItem(prev_from_item)
        self.selection_changed.emit()

    def _setupUI(self):
        self.setSizePolicy(
            QSizePolicy.Preferred, QSizePolicy.Preferred)

        self.setMinimumHeight(180)

        self.main_horizontal_layout = QHBoxLayout(self)

        italic_font = QFont()
        italic_font.setItalic(True)

        # deselected widget
        self.deselected_widget = QListWidget(self)
        self._set_list_widget_defaults(self.deselected_widget)
        deselected_label = QLabel()
        deselected_label.setText('Deselected')
        deselected_label.setAlignment(Qt.AlignCenter)
        deselected_label.setFont(italic_font)
        deselected_v_layout = QVBoxLayout()
        deselected_v_layout.addWidget(deselected_label)
        deselected_v_layout.addWidget(self.deselected_widget)

        # selected widget
        self.selected_widget = QListWidget(self)
        self._set_list_widget_defaults(self.selected_widget)
        selected_label = QLabel()
        selected_label.setText('Selected')
        selected_label.setAlignment(Qt.AlignCenter)
        selected_label.setFont(italic_font)
        selected_v_layout = QVBoxLayout()
        selected_v_layout.addWidget(selected_label)
        selected_v_layout.addWidget(self.selected_widget)

        # buttons
        self.buttons_vertical_layout = QVBoxLayout()
        self.buttons_vertical_layout.setContentsMargins(0, -1, 0, -1)

        self.select_all_btn = SmallQPushButton('>>')
        self.deselect_all_btn = SmallQPushButton('<<')
        self.select_btn = SmallQPushButton('>')
        self.deselect_btn = SmallQPushButton('<')
        self.select_btn.setToolTip('Add the selected items')
        self.deselect_btn.setToolTip('Remove the selected items')
        self.select_all_btn.setToolTip('Add all')
        self.deselect_all_btn.setToolTip('Remove all')

        # add buttons
        spacer_label = QLabel()  # pragmatic way to create a spacer with
        # the same height of the labels on top
        # of the lists, in order to align the
        # buttons with the lists.
        self.buttons_vertical_layout.addWidget(spacer_label)
        self.buttons_vertical_layout.addWidget(self.select_btn)
        self.buttons_vertical_layout.addWidget(self.deselect_btn)
        self.buttons_vertical_layout.addWidget(self.select_all_btn)
        self.buttons_vertical_layout.addWidget(self.deselect_all_btn)

        # add sub widgets
        self.main_horizontal_layout.addLayout(deselected_v_layout)
        self.main_horizontal_layout.addLayout(self.buttons_vertical_layout)
        self.main_horizontal_layout.addLayout(selected_v_layout)

    def _set_list_widget_defaults(self, widget):
        widget.setAlternatingRowColors(True)
        widget.setSortingEnabled(True)
        widget.setDragEnabled(True)
        widget.setDragDropMode(QAbstractItemView.DragDrop)
        widget.setDragDropOverwriteMode(False)
        widget.setDefaultDropAction(Qt.MoveAction)
        widget.setSelectionMode(QAbstractItemView.MultiSelection)
Beispiel #14
0
    def __init__(self, iface):
        locale = QSettings().value('locale/userLocale')[0:2]
        locale_path = os.path.join(os.path.dirname(__file__), 'i18n',
                                   'annotationManager_{}.qm'.format(locale))

        self.translator = None
        if os.path.exists(locale_path):
            self.translator = QTranslator()
            self.translator.load(locale_path)

        if qVersion() > '4.3.3':
            QCoreApplication.installTranslator(self.translator)

        self.iface = iface
        self.iface.projectRead.connect(self.projectOpen)

        self.dock = QDockWidget(self.tr('Annotations'))
        self.manager = QWidget()
        toolbar = QToolBar()

        self.annotationList = QListWidget()
        self.annotationList.setSelectionMode(
            QAbstractItemView.ExtendedSelection)
        self.annotationList.itemSelectionChanged.connect(self.selectAnnotation)
        self.annotationList.itemChanged.connect(self.checkItem)
        action_refresh = QAction(
            QIcon(':/plugins/annotationManager/resources/mActionDraw.png'),
            self.tr('Refresh the annotations list'), self.manager)
        action_refresh.triggered.connect(self.refreshAnnotations)
        action_remove = QAction(
            QIcon(
                ':/plugins/annotationManager/resources/mActionRemoveAnnotation.png'
            ), self.tr('Remove the selected annotation'), self.manager)
        action_remove.triggered.connect(self.removeAnnotation)

        viewMenu = QMenu()
        action_showAll = QAction(
            QIcon(':/plugins/annotationManager/resources/mActionShowAll.png'),
            self.tr('Show all annotations'), self.manager)
        action_showAll.triggered.connect(self.showAll)
        action_hideAll = QAction(
            QIcon(':/plugins/annotationManager/resources/mActionHideAll.png'),
            self.tr('Hide all annotations'), self.manager)
        action_hideAll.triggered.connect(self.hideAll)
        action_showAllSelected = QAction(
            QIcon(':/plugins/annotationManager/resources/mActionShowAll.png'),
            self.tr('Show all selected annotations'), self.manager)
        action_showAllSelected.triggered.connect(self.showAllSelected)
        action_hideAllSelected = QAction(
            QIcon(':/plugins/annotationManager/resources/mActionHideAll.png'),
            self.tr('Hide all selected annotations'), self.manager)
        action_hideAllSelected.triggered.connect(self.hideAllSelected)
        viewMenu.addAction(action_showAll)
        viewMenu.addAction(action_hideAll)
        viewMenu.addAction(action_showAllSelected)
        viewMenu.addAction(action_hideAllSelected)
        viewButton = QToolButton()
        viewButton.setIcon(
            QIcon(':/plugins/annotationManager/resources/mActionShowAll.png'))
        viewButton.setPopupMode(2)
        viewButton.setMenu(viewMenu)

        toolbar.addAction(action_refresh)
        toolbar.addAction(action_remove)
        toolbar.addWidget(viewButton)
        toolbar.setIconSize(QSize(16, 16))

        p1_vertical = QVBoxLayout()
        p1_vertical.setContentsMargins(0, 0, 0, 0)
        p1_vertical.addWidget(toolbar)
        p1_vertical.addWidget(self.annotationList)
        self.manager.setLayout(p1_vertical)

        self.dock.setWidget(self.manager)
        self.dock.setAllowedAreas(Qt.LeftDockWidgetArea
                                  | Qt.RightDockWidgetArea)
        self.iface.addDockWidget(Qt.LeftDockWidgetArea, self.dock)

        self.rb = QgsRubberBand(self.iface.mapCanvas(),
                                QgsWkbTypes.PolygonGeometry)

        self.project = QgsProject.instance()
        self.annotationManager = self.project.annotationManager()
        self.annotationManager.annotationAdded.connect(self.refreshAnnotations)
        self.annotationManager.annotationRemoved.connect(
            self.refreshAnnotations)
class DoProfile(QWidget):

    def __init__(self, iface, dockwidget1 , tool1 , plugin, parent = None):
        QWidget.__init__(self, parent)
        self.profiles = None        #dictionary where is saved the plotting data {"l":[l],"z":[z], "layer":layer1, "curve":curve1}
        self.xAxisSteps = None
        self.xAxisStepType = "numeric"
        self.iface = iface
        self.tool = tool1
        self.dockwidget = dockwidget1
        self.pointstoDraw = None
        self.plugin = plugin
        #init scale widgets
        self.dockwidget.sbMaxVal.setValue(0)
        self.dockwidget.sbMinVal.setValue(0)
        self.dockwidget.sbMaxVal.setEnabled(False)
        self.dockwidget.sbMinVal.setEnabled(False)
        self.dockwidget.sbMinVal.valueChanged.connect(self.reScalePlot)
        self.dockwidget.sbMaxVal.valueChanged.connect(self.reScalePlot)


    #**************************** function part *************************************************

    # remove layers which were removed from QGIS
    def removeClosedLayers(self, model1):
        qgisLayerNames = []
        for i in range(0, self.iface.mapCanvas().layerCount()):
                qgisLayerNames.append(self.iface.mapCanvas().layer(i).name())

        for i in range(0 , model1.rowCount()):
            layerName = model1.item(i,2).data(Qt.EditRole)
            if not layerName in qgisLayerNames:
                self.plugin.removeLayer(i)
                self.removeClosedLayers(model1)
                break

    def calculatePointProfile(self, point, model, library):
        self.model = model
        self.library = library
        
        statName = self.getPointProfileStatNames()[0]

        self.removeClosedLayers(model)
        if point == None:
            return
        PlottingTool().clearData(self.dockwidget, model, library)
        self.profiles = []
        #creating the plots of profiles
        for i in range(0 , model.rowCount()):
            self.profiles.append( {"layer": model.item(i,3).data(Qt.EditRole) } )
            self.profiles[i][statName] = []
            self.profiles[i]["l"] = []
            layer = self.profiles[i]["layer"]
            if layer:
                try:
                    ident = layer.dataProvider().identify(point, QgsRaster.IdentifyFormatValue )
                except:
                    ident = None
            else:
                ident = None
            if ident is not None:
                self.profiles[i][statName] = list(ident.results().values())
                self.profiles[i]["l"] = list(ident.results().keys())
        
        self.setXAxisSteps()
        PlottingTool().attachCurves(self.dockwidget, self.profiles, model, library)
        if self.dockwidget.cboAutoScale.isChecked():
            PlottingTool().reScalePlot(self.dockwidget, self.profiles, model, library)
        self.setupTableTab(model)

    def getPointProfileStatNames(self):
        return ["value"]

    # The code is based on the approach of ZonalStatistics from Processing toolbox 
    def calculatePolygonProfile(self, geometry, crs, model, library):
        self.model = model
        self.library = library
        
        self.removeClosedLayers(model)
        if geometry is None or geometry.isEmpty():
            return
        
        PlottingTool().clearData(self.dockwidget, model, library)
        self.profiles = []

        #creating the plots of profiles
        for i in range(0 , model.rowCount()):
            self.profiles.append( {"layer": model.item(i,3).data(Qt.EditRole) } )
            self.profiles[i]["l"] = []
            for statistic in self.getPolygonProfileStatNames():
                self.profiles[i][statistic] = []
            
            # Get intersection between polygon geometry and raster following ZonalStatistics code
            rasterDS = gdal.Open(self.profiles[i]["layer"].source(), gdal.GA_ReadOnly)
            geoTransform = rasterDS.GetGeoTransform()
            
    
            cellXSize = abs(geoTransform[1])
            cellYSize = abs(geoTransform[5])
            rasterXSize = rasterDS.RasterXSize
            rasterYSize = rasterDS.RasterYSize
    
            rasterBBox = QgsRectangle(geoTransform[0], geoTransform[3] - cellYSize
                                      * rasterYSize, geoTransform[0] + cellXSize
                                      * rasterXSize, geoTransform[3])
            rasterGeom = QgsGeometry.fromRect(rasterBBox)
            
            memVectorDriver = ogr.GetDriverByName('Memory')
            memRasterDriver = gdal.GetDriverByName('MEM')
            
            intersectedGeom = rasterGeom.intersection(geometry)
            ogrGeom = ogr.CreateGeometryFromWkt(intersectedGeom.asWkt())
            
            bbox = intersectedGeom.boundingBox()

            xMin = bbox.xMinimum()
            xMax = bbox.xMaximum()
            yMin = bbox.yMinimum()
            yMax = bbox.yMaximum()

            (startColumn, startRow) = self.mapToPixel(xMin, yMax, geoTransform)
            (endColumn, endRow) = self.mapToPixel(xMax, yMin, geoTransform)

            width = endColumn - startColumn
            height = endRow - startRow

            if width == 0 or height == 0:
                return

            srcOffset = (startColumn, startRow, width, height)

            newGeoTransform = (
                geoTransform[0] + srcOffset[0] * geoTransform[1],
                geoTransform[1],
                0.0,
                geoTransform[3] + srcOffset[1] * geoTransform[5],
                0.0,
                geoTransform[5],
            )
            
            # Create a temporary vector layer in memory
            memVDS = memVectorDriver.CreateDataSource('out')
            memLayer = memVDS.CreateLayer('poly', crs, ogr.wkbPolygon)

            ft = ogr.Feature(memLayer.GetLayerDefn())
            ft.SetGeometry(ogrGeom)
            memLayer.CreateFeature(ft)
            ft.Destroy()
            
            # Rasterize it
            rasterizedDS = memRasterDriver.Create('', srcOffset[2],
                    srcOffset[3], 1, gdal.GDT_Byte)
            rasterizedDS.SetGeoTransform(newGeoTransform)
            gdal.RasterizeLayer(rasterizedDS, [1], memLayer, burn_values=[1])
            rasterizedArray = rasterizedDS.ReadAsArray()
            
            for bandNumber in range(1, rasterDS.RasterCount+1): 
                rasterBand = rasterDS.GetRasterBand(bandNumber)
                noData = rasterBand.GetNoDataValue()
                if noData is None:
                    noData = np.nan
                scale = rasterBand.GetScale()
                if scale is None:
                    scale = 1.0
                offset = rasterBand.GetOffset()
                if offset is None:
                    offset = 0.0
                srcArray = rasterBand.ReadAsArray(*srcOffset)
                srcArray = srcArray*scale+offset
                masked = np.ma.MaskedArray(srcArray,
                            mask=np.logical_or.reduce((
                             srcArray == noData,
                             np.logical_not(rasterizedArray),
                             np.isnan(srcArray))))

                self.profiles[i]["l"].append(bandNumber)
                self.profiles[i]["count"].append(float(masked.count()))
                self.profiles[i]["max"].append(float(masked.max()))
                self.profiles[i]["mean"].append(float(masked.mean()))
                self.profiles[i]["median"].append(float(np.ma.median(masked)))
                self.profiles[i]["min"].append(float(masked.min()))
                self.profiles[i]["range"].append(float(masked.max()) - float(masked.min()))
                self.profiles[i]["std"].append(float(masked.std()))
                self.profiles[i]["sum"].append(float(masked.sum()))
                self.profiles[i]["unique"].append(np.unique(masked.compressed()).size)
                self.profiles[i]["var"].append(float(masked.var()))
                
            memVDS = None
            rasterizedDS = None
        
        rasterDS = None
        
        self.setXAxisSteps()
        PlottingTool().attachCurves(self.dockwidget, self.profiles, model, library)
        if self.dockwidget.cboAutoScale.isChecked():
            PlottingTool().reScalePlot(self.dockwidget, self.profiles, model, library)
        self.setupTableTab(model)

    def getPolygonProfileStatNames(self):
        return ["count", "max", "mean", "median", "min", "range", "std", "sum", "unique", "var"]

    def setXAxisSteps(self):
        if self.xAxisSteps == None:
            self.changeXAxisStepType("numeric")
            return
        
        elif self.xAxisSteps[0] == "Timesteps":
            for profile in self.profiles:
                stepsNum = len(profile["l"])
                startTime = self.xAxisSteps[1]
                step = self.xAxisSteps[2]
                stepType = self.xAxisSteps[3]
                useNetcdfTime = self.xAxisSteps[4]
                if stepType == "years":
                    stepType = "days"
                    step = step * 365
                elif stepType == "months":
                    stepType = "days"
                    step = step * 365/12

                profile["l"] = []
                if useNetcdfTime and (profile["layer"].source().startswith("NETCDF:") or
                                      profile["layer"].source().endswith(".nc")):
                    try:
                        import netCDF4
                        if profile["layer"].source().startswith("NETCDF:"):
                            filename = re.match('NETCDF:\"(.*)\":.*$', profile["layer"].source()).group(1)
                        else:
                            filename = profile["layer"].source()
                        nc = netCDF4.Dataset(filename, mode='r')
                        profile["l"] = netCDF4.num2date(nc.variables["time"][:],
                                                        units = nc.variables["time"].units,
                                                        calendar = nc.variables["time"].calendar)
                        nc.close()
                    except ImportError:
                        text = "Temporal/Spectral Profile Tool: netCDF4 module is required to read NetCDF " + \
                               "time dimension. Please use pip install netCDF4"
                        self.iface.messageBar().pushWidget(self.iface.messageBar().createMessage(text), 
                                                           QgsMessageBar.WARNING, 5)
                        profile["l"] = []
                    except KeyError:
                        text = "Temporal/Spectral Profile Tool: NetCDF file does not have " + \
                               "time dimension."
                        self.iface.messageBar().pushWidget(self.iface.messageBar().createMessage(text), 
                                                           QgsMessageBar.WARNING, 5)
                        nc.close()
                        profile["l"] = []
                if profile["l"] == []:
                    for i in range(stepsNum):
                        timedeltaParams = {stepType: step*i}
                        profile["l"].append(startTime + timedelta(**timedeltaParams))
                
                self.changeXAxisStepType("timedate")        
        else:
            for profile in self.profiles:
                # Truncate the profiles to the minimum of the length of each profile
                # or length of provided x-axis steps
                stepsNum = min(len(self.xAxisSteps), len(profile["l"]))
                profile["l"] = self.xAxisSteps[:stepsNum]
                for stat in list(profile.keys()):
                    if stat == "l" or stat == "layer":
                        continue
                    profile[stat] = profile[stat][:stepsNum]
                    
                # If any x-axis step is a NaN then remove the corresponding
                # value from profile
                nans = [i for i, x in enumerate(profile["l"]) if math.isnan(x)]
                for stat in list(profile.keys()):
                    if stat == "layer":
                        continue
                    profile[stat] = [x for i, x in enumerate(profile[stat]) if i not in nans]
            
            self.changeXAxisStepType("numeric")
            
    def changeXAxisStepType(self, newType):
        if self.xAxisStepType == newType:
            return
        else:
            self.xAxisStepType = newType
            PlottingTool().resetAxis(self.dockwidget, self.library)
    
    def mapToPixel(self, mX, mY, geoTransform):
        (pX, pY) = gdal.ApplyGeoTransform(
            gdal.InvGeoTransform(geoTransform), mX, mY)
            
        return (int(pX), int(pY))            
    
    def setupTableTab(self, model1):
        #*********************** TAble tab *************************************************
        try:                                                                    #Reinitializing the table tab
            self.VLayout = self.dockwidget.scrollAreaWidgetContents.layout()
            while 1:
                child = self.VLayout.takeAt(0)
                if not child:
                    break
                child.widget().deleteLater()
        except:
            self.VLayout = QVBoxLayout(self.dockwidget.scrollAreaWidgetContents)
            self.VLayout.setContentsMargins(9, -1, -1, -1)
        #Setup the table tab
        self.groupBox = []
        self.profilePushButton = []
        self.tableView = []
        self.verticalLayout = []
        for i in range(0 , model1.rowCount()):
            self.groupBox.append( QGroupBox(self.dockwidget.scrollAreaWidgetContents) )
            sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed)
            sizePolicy.setHorizontalStretch(0)
            sizePolicy.setVerticalStretch(0)
            sizePolicy.setHeightForWidth(self.groupBox[i].sizePolicy().hasHeightForWidth())
            self.groupBox[i].setSizePolicy(sizePolicy)
            self.groupBox[i].setMinimumSize(QSize(0, 150))
            self.groupBox[i].setMaximumSize(QSize(16777215, 350))
            self.groupBox[i].setTitle(QApplication.translate("GroupBox" + str(i), self.profiles[i]["layer"].name(), None))
            self.groupBox[i].setObjectName("groupBox" + str(i))

            self.verticalLayout.append( QVBoxLayout(self.groupBox[i]) )
            self.verticalLayout[i].setObjectName("verticalLayout")
            #The table
            self.tableView.append( QTableView(self.groupBox[i]) )
            self.tableView[i].setObjectName("tableView" + str(i))
            font = QFont("Arial", 8)
            columns = len(self.profiles[i]["l"])
            rowNames = list(self.profiles[i].keys())
            rowNames.remove("layer") # holds the QgsMapLayer instance
            rowNames.remove("l") # holds the band number
            rows = len(rowNames)
            self.mdl = QStandardItemModel(rows+1, columns)
            self.mdl.setVerticalHeaderLabels(["band"] + rowNames)
            for j in range(columns):
                self.mdl.setData(self.mdl.index(0, j, QModelIndex()), str(self.profiles[i]["l"][j]))
                self.mdl.setData(self.mdl.index(0, j, QModelIndex()), font ,Qt.FontRole)
                for k in range(rows):
                    self.mdl.setData(self.mdl.index(k+1, j, QModelIndex()), str(self.profiles[i][rowNames[k]][j]))
                    self.mdl.setData(self.mdl.index(k+1, j, QModelIndex()), font ,Qt.FontRole)
            #self.tableView[i].setVerticalHeaderLabels(rowNames)
            self.tableView[i].verticalHeader().setDefaultSectionSize(18)
            self.tableView[i].horizontalHeader().setDefaultSectionSize(60)
            self.tableView[i].setModel(self.mdl)
            self.verticalLayout[i].addWidget(self.tableView[i])

            self.horizontalLayout = QHBoxLayout()

            #the copy to clipboard button
            self.profilePushButton.append( QPushButton(self.groupBox[i]) )
            sizePolicy = QSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
            sizePolicy.setHorizontalStretch(0)
            sizePolicy.setVerticalStretch(0)
            sizePolicy.setHeightForWidth(self.profilePushButton[i].sizePolicy().hasHeightForWidth())
            self.profilePushButton[i].setSizePolicy(sizePolicy)
            self.profilePushButton[i].setText(QApplication.translate("GroupBox", "Copy to clipboard", None))
            self.profilePushButton[i].setObjectName(str(i))
            self.horizontalLayout.addWidget(self.profilePushButton[i])

            self.horizontalLayout.addStretch(0)
            self.verticalLayout[i].addLayout(self.horizontalLayout)

            self.VLayout.addWidget(self.groupBox[i])
            self.profilePushButton[i].clicked.connect(self.copyTable)

    def copyTable(self):                            #Writing the table to clipboard in excel form
        nr = int( self.sender().objectName() )
        self.clipboard = QApplication.clipboard()
        text = "band"
        rowNames = list(self.profiles[nr].keys())
        rowNames.remove("layer")
        rowNames.remove("l")
        for name in rowNames:
            text += "\t"+name
        text += "\n"
        for i in range( len(self.profiles[nr]["l"]) ):
            text += str(self.profiles[nr]["l"][i])
            for j in range(len(rowNames)):
                text += "\t" + str(self.profiles[nr][rowNames[j]][i])
            text += "\n"
        self.clipboard.setText(text)

    def reScalePlot(self, param):                         # called when a spinbox value changed
        if type(param) != float:    
            # don't execute it twice, for both valueChanged(int) and valueChanged(str) signals
            return
        if self.dockwidget.sbMinVal.value() == self.dockwidget.sbMaxVal.value() == 0:
            # don't execute it on init
            return
        PlottingTool().reScalePlot(self.dockwidget, self.profiles, self.model, self.library, autoMode = False)
class see_map(QDialog):
    #app2 = QgsApplication([], True)
    #app2.initQgis()
    def __init__(self, file_name):
        super().__init__()

        # Creación del Lienzo / Canvas
        self.canvas = QgsMapCanvas(self)
        self.setWindowTitle("Map of Track  /  Mapa del Recorrido")
        self.canvas.setCanvasColor(Qt.white)

        self.initGui()

        if not file_name == None:
            vlayer = QgsVectorLayer(file_name, "Track Converted", "ogr")
            #vlayer.updateExtents()
            self.project.instance().addMapLayer(vlayer)
            vlayer.renderer().symbol().setWidth(2)
            vlayer.renderer().symbol().setColor(QColor.fromRgb(250, 0, 0))
            self.view.refreshLayerSymbology(vlayer.id())

            uri = 'crs=EPSG:4326&dpiMode=7&format=image/jpeg&layers=IGNBaseTodo&styles=default&tileMatrixSet=EPSG:4326&url=http://www.ign.es/wmts/ign-base'
            map_spain = QgsRasterLayer(uri, "Spain", "wms")
            self.root.insertLayer(1, map_spain)
            self.project.instance().addMapLayer(map_spain)
            if not map_spain.isValid():
                print("Track failed to load! /n" + file_name)
            else:
                print("Track Load Correct! " + file_name)

        else:
            uri = 'crs=EPSG:4326&dpiMode=7&format=image/jpeg&layers=IGNBaseTodo&styles=default&tileMatrixSet=EPSG:4326&url=http://www.ign.es/wmts/ign-base'
            map_spain = QgsRasterLayer(uri, "Spain", "wms")
            self.project.instance().addMapLayer(map_spain)

            if not map_spain.isValid():
                print("Track failed to load! /n" + file_name)
            else:
                print("Track Load Correct! " + file_name)

    def zoomIn(self):
        self.canvas.setMapTool(self.toolZoomIn)

    def zoomOut(self):
        self.canvas.setMapTool(self.toolZoomOut)

    def pan(self):
        self.canvas.setMapTool(self.toolPan)

    def file(self):
        filename, _ = QFileDialog.getOpenFileName(self,
                                                  'Selecciona Fichero GPX',
                                                  'c:/', 'QGis (*.qgz)')
        if filename:
            self.project.read(filename)

    def initGui(self):
        icon = QIcon()
        icon.addPixmap(
            QPixmap(
                "C:/Roberto/Visual_Studio_Code/GisBike/programa/IMG/Qgis.png"),
            QIcon.Normal, QIcon.Off)
        self.setWindowIcon(icon)
        self.setWindowModality(Qt.WindowModal)
        self.setWindowFlags(Qt.Window
                            | Qt.WindowSystemMenuHint
                            | Qt.WindowMinimizeButtonHint
                            | Qt.WindowMaximizeButtonHint
                            | Qt.WindowCloseButtonHint)

        self.resize(1200, 600)

        self.verticalLayout_2 = QVBoxLayout(self)
        self.splitter = QSplitter(self)
        self.splitter.setOrientation(Qt.Horizontal)

        self.actionZoomIn = QPushButton("Zoom in", self.splitter)
        self.actionZoomOut = QPushButton("Zoom out", self.splitter)
        self.actionPan = QPushButton("Pan", self.splitter)
        self.actionFile = QPushButton("File", self.splitter)

        self.project = QgsProject.instance()
        self.project.read('C:/Users/Fcc/Desktop/QGis/pruebas2.qgz')
        self.root = QgsProject.instance().layerTreeRoot()
        self.bridge = QgsLayerTreeMapCanvasBridge(self.root, self.canvas)

        self.bridge.setCanvasLayers()
        self.bridge.setAutoSetupOnFirstLayer(True)

        #https://gis.stackexchange.com/questions/141516/adding-legend-to-canvas-in-standalone-pyqgis-application
        self.model = QgsLayerTreeModel(self.root)
        self.model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
        self.model.setFlag(QgsLayerTreeModel.AllowNodeRename)
        self.model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
        self.model.setFlag(QgsLayerTreeModel.ShowLegend)
        self.view = QgsLayerTreeView(self.splitter)
        self.view.setModel(self.model)
        self.view.setFixedWidth(150)
        #self.view.resize(150,600)

        self.widget = QWidget(self.splitter)
        self.verticalLayout = QVBoxLayout(self.widget)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.horizontalLayout = QHBoxLayout()
        self.horizontalLayout.addWidget(self.actionZoomIn)
        self.horizontalLayout.addWidget(self.actionZoomOut)
        self.horizontalLayout.addWidget(self.actionPan)
        self.horizontalLayout.addWidget(self.actionFile)
        self.verticalLayout.addLayout(self.horizontalLayout)
        self.verticalLayout.addWidget(self.canvas)
        self.verticalLayout_2.addWidget(self.splitter)

        self.actionZoomIn.clicked.connect(self.zoomIn)
        self.actionZoomOut.clicked.connect(self.zoomOut)
        self.actionPan.clicked.connect(self.pan)
        self.actionFile.clicked.connect(self.file)

        # create the map tools
        self.toolPan = QgsMapToolPan(self.canvas)
        self.toolZoomIn = QgsMapToolZoom(self.canvas, False)  # false = in
        self.toolZoomOut = QgsMapToolZoom(self.canvas, True)  # true = out
Beispiel #17
0
    def __init__(self, iface):

        self.translator = None
        self.iface = iface
        self.project = None  # type: Project
        self.link_layer = None  # type: QgsVectorLayer
        self.node_layer = None  # type: QgsVectorLayer

        self.dock = QDockWidget(self.trlt('AequilibraE'))
        self.manager = QWidget()

        # The self.toolbar will hold everything
        self.toolbar = QToolBar()
        self.toolbar.setOrientation(2)

        # # ########################################################################
        # # #######################   PROJECT SUB-MENU   ############################

        projectMenu = QMenu()
        self.open_project_action = QAction(self.trlt('Open Project'),
                                           self.manager)
        self.open_project_action.triggered.connect(self.run_load_project)
        projectMenu.addAction(self.open_project_action)

        self.project_from_osm_action = QAction(
            self.trlt('Create project from OSM'), self.manager)
        self.project_from_osm_action.triggered.connect(
            self.run_project_from_osm)
        projectMenu.addAction(self.project_from_osm_action)

        self.create_transponet_action = QAction(
            self.trlt('Create Project from layers'), self.manager)
        self.create_transponet_action.triggered.connect(
            self.run_create_transponet)
        projectMenu.addAction(self.create_transponet_action)

        projectButton = QToolButton()
        projectButton.setText(self.trlt('Project'))
        projectButton.setPopupMode(2)
        projectButton.setMenu(projectMenu)

        self.toolbar.addWidget(projectButton)

        # # ########################################################################
        # # ################# NETWORK MANIPULATION SUB-MENU  #######################

        netMenu = QMenu()
        self.action_netPrep = QAction(self.trlt('Network Preparation'),
                                      self.manager)
        self.action_netPrep.triggered.connect(self.run_net_prep)
        netMenu.addAction(self.action_netPrep)

        self.add_connectors_action = QAction(
            self.trlt('Add centroid connectors'), self.manager)
        self.add_connectors_action.triggered.connect(self.run_add_connectors)
        netMenu.addAction(self.add_connectors_action)

        netbutton = QToolButton()
        netbutton.setText(self.trlt('Network Manipulation'))
        netbutton.setMenu(netMenu)
        netbutton.setPopupMode(2)

        self.toolbar.addWidget(netbutton)
        # # ########################################################################
        # # ####################  DATA UTILITIES SUB-MENU  #########################

        dataMenu = QMenu()
        self.display_custom_formats_action = QAction(
            self.trlt('Display AequilibraE formats'), self.manager)
        self.display_custom_formats_action.triggered.connect(
            self.run_display_aequilibrae_formats)
        dataMenu.addAction(self.display_custom_formats_action)

        self.load_matrix_action = QAction(self.trlt('Import matrices'),
                                          self.manager)
        self.load_matrix_action.triggered.connect(self.run_load_matrices)
        dataMenu.addAction(self.load_matrix_action)

        self.load_database_action = QAction(self.trlt('Import dataset'),
                                            self.manager)
        self.load_database_action.triggered.connect(self.run_load_database)
        dataMenu.addAction(self.load_database_action)

        databutton = QToolButton()
        databutton.setText(self.trlt('Data'))
        databutton.setPopupMode(2)
        databutton.setMenu(dataMenu)

        self.toolbar.addWidget(databutton)

        # # # ########################################################################
        # # # ##################  TRIP DISTRIBUTION SUB-MENU  ########################

        distributionButton = QToolButton()
        distributionButton.setText(self.trlt('Trip Distribution'))
        distributionButton.clicked.connect(self.run_distribution_models)
        self.toolbar.addWidget(distributionButton)

        # # ########################################################################
        # # ###################  PATH COMPUTATION SUB-MENU   #######################
        pathMenu = QMenu()

        self.shortest_path_action = QAction(self.trlt('Shortest path'),
                                            self.manager)
        self.shortest_path_action.triggered.connect(self.run_shortest_path)
        pathMenu.addAction(self.shortest_path_action)

        self.dist_matrix_action = QAction(self.trlt('Impedance matrix'),
                                          self.manager)
        self.dist_matrix_action.triggered.connect(self.run_dist_matrix)
        pathMenu.addAction(self.dist_matrix_action)

        self.traffic_assignment_action = QAction(
            self.trlt('Traffic Assignment'), self.manager)
        self.traffic_assignment_action.triggered.connect(
            self.run_traffic_assig)
        pathMenu.addAction(self.traffic_assignment_action)

        pathButton = QToolButton()
        pathButton.setText(self.trlt('Paths and assignment'))
        pathButton.setPopupMode(2)
        pathButton.setMenu(pathMenu)

        self.toolbar.addWidget(pathButton)

        # # ########################################################################
        # # #######################   ROUTING SUB-MENU   ###########################
        if has_ortools:
            routingMenu = QMenu()
            self.tsp_action = QAction(self.trlt('Travelling Salesman Problem'),
                                      self.manager)
            self.tsp_action.triggered.connect(self.run_tsp)
            routingMenu.addAction(self.tsp_action)

            routingButton = QToolButton()
            routingButton.setText(self.trlt('Routing'))
            routingButton.setPopupMode(2)
            routingButton.setMenu(routingMenu)

            self.toolbar.addWidget(routingButton)

        # # ########################################################################
        # # #######################   TRANSIT SUB-MENU   ###########################
        transitMenu = QMenu()
        self.gtfs_import_action = QAction(
            self.trlt('Convert GTFS to SpatiaLite'), self.manager)
        self.gtfs_import_action.triggered.connect(self.run_import_gtfs)
        transitMenu.addAction(self.gtfs_import_action)

        transitButton = QToolButton()
        transitButton.setText(self.trlt('Public Transport'))
        transitButton.setPopupMode(2)
        transitButton.setMenu(transitMenu)

        self.toolbar.addWidget(transitButton)

        # ########################################################################
        # #################        GIS TOOLS SUB-MENU    #########################

        gisMenu = QMenu()
        self.simple_tag_action = QAction(self.trlt('Simple tag'), self.manager)
        self.simple_tag_action.triggered.connect(self.run_simple_tag)
        gisMenu.addAction(self.simple_tag_action)

        self.lcd_action = QAction(self.trlt('Lowest common denominator'),
                                  self.manager)
        self.lcd_action.triggered.connect(self.run_lcd)
        gisMenu.addAction(self.lcd_action)

        self.dlines_action = QAction(self.trlt('Desire Lines'), self.manager)
        self.dlines_action.triggered.connect(self.run_dlines)
        gisMenu.addAction(self.dlines_action)

        self.bandwidth_action = QAction(self.trlt('Stacked Bandwidth'),
                                        self.manager)
        self.bandwidth_action.triggered.connect(self.run_bandwidth)
        gisMenu.addAction(self.bandwidth_action)

        self.scenario_comparison_action = QAction(
            self.trlt('Scenario Comparison'), self.manager)
        self.scenario_comparison_action.triggered.connect(
            self.run_scenario_comparison)
        gisMenu.addAction(self.scenario_comparison_action)

        gisButton = QToolButton()
        gisButton.setText(self.trlt('GIS'))
        gisButton.setPopupMode(2)
        gisButton.setMenu(gisMenu)

        self.toolbar.addWidget(gisButton)

        # ########################################################################
        # #################          LOOSE STUFF         #########################

        parametersButton = QToolButton()
        parametersButton.setText(self.trlt('Parameters'))
        parametersButton.clicked.connect(self.run_change_parameters)
        self.toolbar.addWidget(parametersButton)

        aboutButton = QToolButton()
        aboutButton.setText(self.trlt('About'))
        aboutButton.clicked.connect(self.run_about)
        self.toolbar.addWidget(aboutButton)

        logButton = QToolButton()
        logButton.setText(self.trlt('logfile'))
        logButton.clicked.connect(self.run_log)
        self.toolbar.addWidget(logButton)

        helpButton = QToolButton()
        helpButton.setText(self.trlt('Help'))
        helpButton.clicked.connect(self.run_help)
        self.toolbar.addWidget(helpButton)

        if no_binary:
            binariesButton = QToolButton()
            binariesButton.setText(self.trlt('Download binaries'))
            binariesButton.clicked.connect(self.run_binary_download)
            self.toolbar.addWidget(binariesButton)

        if not extra_packages:
            xtrapkgButton = QToolButton()
            xtrapkgButton.setText(self.trlt('Install extra packages'))
            xtrapkgButton.clicked.connect(self.install_extra_packages)
            self.toolbar.addWidget(xtrapkgButton)

        # ########################################################################
        # #################        PROJECT MANAGER       #########################

        self.showing = QCheckBox()
        self.showing.setText('Show project info')
        self.showing.setChecked(True)
        self.toolbar.addWidget(self.showing)

        self.showing.toggled.connect(self.hide_info_pannel)
        self.projectManager = QTabWidget()
        self.toolbar.addWidget(self.projectManager)

        # # # ########################################################################
        self.tabContents = []
        self.toolbar.setIconSize(QSize(16, 16))

        p1_vertical = QVBoxLayout()
        p1_vertical.setContentsMargins(0, 0, 0, 0)
        p1_vertical.addWidget(self.toolbar)
        self.manager.setLayout(p1_vertical)

        self.dock.setWidget(self.manager)
        self.dock.setAllowedAreas(Qt.LeftDockWidgetArea
                                  | Qt.RightDockWidgetArea)
        self.iface.addDockWidget(Qt.LeftDockWidgetArea, self.dock)
Beispiel #18
0
    def __init__(self, plugin):
        QMainWindow.__init__(self, plugin.iface.mainWindow())
        self.setupUi(self)

        self.btnSearch.setIcon(GuiUtils.get_icon('search.png'))
        self.btnClearSearch.setIcon(GuiUtils.get_icon('reset.png'))

        self._plugin = plugin

        self.search_done = False
        # self.tbPropertyPreview.set_iface(self._plugin.iface)
        QTimer.singleShot(
            100, lambda: self.tbPropertyPreview.set_iface(self._plugin.iface))

        self.curr_profile = current_profile()

        self.spatial_units = self.curr_profile.social_tenure.spatial_units
        # Center me
        self.move(QDesktopWidget().availableGeometry().center() -
                  self.frameGeometry().center())
        self.sp_unit_manager = SpatialUnitManagerDockWidget(
            self._plugin.iface, self._plugin)
        self.geom_cols = []
        for spatial_unit in self.spatial_units:
            each_geom_col = self.sp_unit_manager.geom_columns(spatial_unit)
            self.geom_cols.extend(each_geom_col)

        # Configure notification bar
        self._notif_search_config = NotificationBar(self.vl_notification)

        # set whether currently logged in user has
        # permissions to edit existing STR records
        self._can_edit = self._plugin.STRCntGroup.canUpdate()
        self._can_delete = self._plugin.STRCntGroup.canDelete()
        self._can_create = self._plugin.STRCntGroup.canCreate()
        # Variable used to store a reference to the
        # currently selected social tenure relationship
        # when displaying documents in the supporting documents tab window.
        # This ensures that there are no duplicates
        # when the same item is selected over and over again.

        self._strID = None
        self.removed_docs = None
        # Used to store the root hash of the currently selected node.
        self._curr_rootnode_hash = ""

        self.str_model, self.str_doc_model = entity_model(
            self.curr_profile.social_tenure, False, True)

        self._source_doc_manager = SourceDocumentManager(
            self.curr_profile.social_tenure.supporting_doc, self.str_doc_model,
            self)

        self._source_doc_manager.documentRemoved.connect(
            self.onSourceDocumentRemoved)

        self._source_doc_manager.setEditPermissions(False)

        self.addSTR = None
        self.editSTR = None
        self.deleteSTR = None

        self.initGui()
        self.add_spatial_unit_layer()

        self.details_tree_view = DetailsTreeView(parent=self,
                                                 plugin=self._plugin)
        layout = QVBoxLayout()
        layout.setContentsMargins(0, 0, 0, 0)
        layout.addWidget(self.details_tree_view)
        self.str_tree_container.setLayout(layout)

        # else:
        #     self.details_tree_view = self._plugin.details_tree_view
        self.details_tree_view.activate_feature_details(True)
        self.details_tree_view.model.clear()

        count = pg_table_record_count(self.curr_profile.social_tenure.name)
        self.setWindowTitle(
            self.tr('{}{}'.format(self.windowTitle(),
                                  '- ' + str(count) + ' rows')))

        self.active_spu_id = -1

        self.toolBox.setStyleSheet('''
            QToolBox::tab {
                background: qlineargradient(
                    x1: 0, y1: 0, x2: 0, y2: 1,
                    stop: 0 #EDEDED, stop: 0.4 #EDEDED,
                    stop: 0.5 #EDEDED, stop: 1.0 #D3D3D3
                );
                border-radius: 2px;
                border-style: outset;
                border-width: 2px;
                height: 100px;
                border-color: #C3C3C3;
            }

            QToolBox::tab:selected {
                font: italic;
            }
            ''')

        self.details_tree_view.view.setStyleSheet('''
            QTreeView:!active {
                selection-background-color: #72a6d9;
            }
            ''')
Beispiel #19
0
class ModelerDialog(BASE, WIDGET):
    ALG_ITEM = 'ALG_ITEM'
    PROVIDER_ITEM = 'PROVIDER_ITEM'
    GROUP_ITEM = 'GROUP_ITEM'

    NAME_ROLE = Qt.UserRole
    TAG_ROLE = Qt.UserRole + 1
    TYPE_ROLE = Qt.UserRole + 2

    CANVAS_SIZE = 4000

    update_model = pyqtSignal()

    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(
            self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.propertiesDock.setWindowTitle(self.tr("Model properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                    | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable
                                        | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(
            self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QTreeWidget(self.scrollAreaWidgetContents_3)
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(
            self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions()
                                | QMainWindow.GroupedDragging)
        except:
            pass

        self.mToolbar.setIconSize(iface.iconSize())
        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        #self.mActionExportPython.setIcon(
        #    QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.zoom = 1

        self.setWindowFlags(Qt.WindowMinimizeButtonHint
                            | Qt.WindowMaximizeButtonHint
                            | Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(
            settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(
            settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(
            QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)

        def _dragEnterEvent(event):
            if event.mimeData().hasText():
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            if event.mimeData().hasText():
                itemId = event.mimeData().text()
                if itemId in [
                        param.id() for param in QgsApplication.instance().
                        processingRegistry().parameterTypes()
                ]:
                    self.addInputOfType(itemId, event.pos())
                else:
                    alg = QgsApplication.processingRegistry(
                    ).createAlgorithmById(itemId)
                    if alg is not None:
                        self._addAlgorithm(alg, event.pos())
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText():
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(
                    self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(
                    self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        def _mimeDataAlgorithm(items):
            item = items[0]
            mimeData = None
            if isinstance(item, TreeAlgorithmItem):
                mimeData = QMimeData()
                mimeData.setText(item.alg.id())
            return mimeData

        self.algorithmTree.mimeData = _mimeDataAlgorithm

        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(
                QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.textChanged)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(
                QgsApplication.processingRegistry().providerById('model'))

        self.fillInputsTree()
        self.fillTreeUsingProviders()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False

    def closeEvent(self, evt):
        settings = QgsSettings()
        settings.setValue("/Processing/stateModeler", self.saveState())
        settings.setValue("/Processing/geometryModeler", self.saveGeometry())

        if self.hasChanged:
            ret = QMessageBox.question(
                self, self.tr('Save Model?'),
                self.
                tr('There are unsaved changes in this model. Do you want to keep those?'
                   ),
                QMessageBox.Save | QMessageBox.Cancel | QMessageBox.Discard,
                QMessageBox.Cancel)

            if ret == QMessageBox.Save:
                self.saveModel(False)
                evt.accept()
            elif ret == QMessageBox.Discard:
                evt.accept()
            else:
                evt.ignore()
        else:
            evt.accept()

    def editHelp(self):
        alg = self.model
        dlg = HelpEditionDialog(alg)
        dlg.exec_()
        if dlg.descriptions:
            self.model.setHelpContent(dlg.descriptions)
            self.hasChanged = True

    def runModel(self):
        if len(self.model.childAlgorithms()) == 0:
            self.bar.pushMessage(
                "",
                self.
                tr("Model doesn't contain any algorithm and/or parameter and can't be executed"
                   ),
                level=Qgis.Warning,
                duration=5)
            return

        dlg = AlgorithmDialog(self.model)
        dlg.exec_()

    def save(self):
        self.saveModel(False)

    def saveAs(self):
        self.saveModel(True)

    def zoomIn(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomOut(self):
        self.view.setTransformationAnchor(QGraphicsView.NoAnchor)
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))

        settings = QgsSettings()
        factor = settings.value('/qgis/zoom_favor', 2.0)
        factor = 1 / factor

        self.view.scale(factor, factor)
        self.view.centerOn(point)
        self.repaintModel()

    def zoomActual(self):
        point = self.view.mapToScene(
            QPoint(self.view.viewport().width() / 2,
                   self.view.viewport().height() / 2))
        self.view.resetTransform()
        self.view.centerOn(point)

    def zoomToItems(self):
        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        self.view.fitInView(totalRect, Qt.KeepAspectRatio)

    def exportAsImage(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As Image'), '',
            self.tr('PNG files (*.png *.PNG)'))
        if not filename:
            return

        if not filename.lower().endswith('.png'):
            filename += '.png'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        imgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        img = QImage(totalRect.width(), totalRect.height(),
                     QImage.Format_ARGB32_Premultiplied)
        img.fill(Qt.white)
        painter = QPainter()
        painter.setRenderHint(QPainter.Antialiasing)
        painter.begin(img)
        self.scene.render(painter, imgRect, totalRect)
        painter.end()

        img.save(filename)

        self.bar.pushMessage("",
                             self.tr("Model was correctly exported as image"),
                             level=Qgis.Success,
                             duration=5)
        self.repaintModel(controls=True)

    def exportAsPdf(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As PDF'), '',
            self.tr('PDF files (*.pdf *.PDF)'))
        if not filename:
            return

        if not filename.lower().endswith('.pdf'):
            filename += '.pdf'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        printerRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        printer = QPrinter()
        printer.setOutputFormat(QPrinter.PdfFormat)
        printer.setOutputFileName(filename)
        printer.setPaperSize(QSizeF(printerRect.width(), printerRect.height()),
                             QPrinter.DevicePixel)
        printer.setFullPage(True)

        painter = QPainter(printer)
        self.scene.render(painter, printerRect, totalRect)
        painter.end()

        self.bar.pushMessage("",
                             self.tr("Model was correctly exported as PDF"),
                             level=Qgis.Success,
                             duration=5)
        self.repaintModel(controls=True)

    def exportAsSvg(self):
        self.repaintModel(controls=False)
        filename, fileFilter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As SVG'), '',
            self.tr('SVG files (*.svg *.SVG)'))
        if not filename:
            return

        if not filename.lower().endswith('.svg'):
            filename += '.svg'

        totalRect = self.scene.itemsBoundingRect()
        totalRect.adjust(-10, -10, 10, 10)
        svgRect = QRectF(0, 0, totalRect.width(), totalRect.height())

        svg = QSvgGenerator()
        svg.setFileName(filename)
        svg.setSize(QSize(totalRect.width(), totalRect.height()))
        svg.setViewBox(svgRect)
        svg.setTitle(self.model.displayName())

        painter = QPainter(svg)
        self.scene.render(painter, svgRect, totalRect)
        painter.end()

        self.bar.pushMessage("",
                             self.tr("Model was correctly exported as SVG"),
                             level=Qgis.Success,
                             duration=5)
        self.repaintModel(controls=True)

    def exportAsPython(self):
        filename, filter = QFileDialog.getSaveFileName(
            self, self.tr('Save Model As Python Script'), '',
            self.tr('Python files (*.py *.PY)'))
        if not filename:
            return

        if not filename.lower().endswith('.py'):
            filename += '.py'

        text = self.model.asPythonCode()
        with codecs.open(filename, 'w', encoding='utf-8') as fout:
            fout.write(text)

        self.bar.pushMessage(
            "",
            self.tr("Model was correctly exported as python script"),
            level=Qgis.Success,
            duration=5)

    def saveModel(self, saveAs):
        if str(self.textGroup.text()).strip() == '' \
                or str(self.textName.text()).strip() == '':
            QMessageBox.warning(
                self, self.tr('Warning'),
                self.tr('Please enter group and model names before saving'))
            return
        self.model.setName(str(self.textName.text()))
        self.model.setGroup(str(self.textGroup.text()))
        if self.model.sourceFilePath() and not saveAs:
            filename = self.model.sourceFilePath()
        else:
            filename, filter = QFileDialog.getSaveFileName(
                self, self.tr('Save Model'),
                ModelerUtils.modelsFolders()[0],
                self.tr('Processing models (*.model3)'))
            if filename:
                if not filename.endswith('.model3'):
                    filename += '.model3'
                self.model.setSourceFilePath(filename)
        if filename:
            if not self.model.toFile(filename):
                if saveAs:
                    QMessageBox.warning(
                        self, self.tr('I/O error'),
                        self.tr('Unable to save edits. Reason:\n {0}').format(
                            str(sys.exc_info()[1])))
                else:
                    QMessageBox.warning(
                        self, self.tr("Can't save model"),
                        QCoreApplication.
                        translate('QgsPluginInstallerInstallingDialog', (
                            "This model can't be saved in its original location (probably you do not "
                            "have permission to do it). Please, use the 'Save as…' option."
                        )))
                return
            self.update_model.emit()
            self.bar.pushMessage("",
                                 self.tr("Model was correctly saved"),
                                 level=Qgis.Success,
                                 duration=5)

            self.hasChanged = False

    def openModel(self):
        filename, selected_filter = QFileDialog.getOpenFileName(
            self, self.tr('Open Model'),
            ModelerUtils.modelsFolders()[0],
            self.tr('Processing models (*.model3 *.MODEL3)'))
        if filename:
            self.loadModel(filename)

    def loadModel(self, filename):
        alg = QgsProcessingModelAlgorithm()
        if alg.fromFile(filename):
            self.model = alg
            self.model.setProvider(
                QgsApplication.processingRegistry().providerById('model'))
            self.textGroup.setText(alg.group())
            self.textName.setText(alg.name())
            self.repaintModel()

            self.view.centerOn(0, 0)
            self.hasChanged = False
        else:
            QgsMessageLog.logMessage(
                self.tr('Could not load model {0}').format(filename),
                self.tr('Processing'), Qgis.Critical)
            QMessageBox.critical(
                self, self.tr('Open Model'),
                self.tr('The selected model could not be loaded.\n'
                        'See the log for more information.'))

    def repaintModel(self, controls=True):
        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(
            QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))
        self.scene.paintModel(self.model, controls)
        self.view.setScene(self.scene)

    def addInput(self):
        item = self.inputsTree.currentItem()
        param = item.data(0, Qt.UserRole)
        self.addInputOfType(param)

    def addInputOfType(self, paramType, pos=None):
        dlg = ModelerParameterDefinitionDialog(self.model, paramType)
        dlg.exec_()
        if dlg.param is not None:
            if pos is None:
                pos = self.getPositionForParameterItem()
            if isinstance(pos, QPoint):
                pos = QPointF(pos)
            component = QgsProcessingModelParameter(dlg.param.name())
            component.setDescription(dlg.param.name())
            component.setPosition(pos)
            self.model.addModelParameter(dlg.param, component)
            self.repaintModel()
            # self.view.ensureVisible(self.scene.getLastParameterItem())
            self.hasChanged = True

    def getPositionForParameterItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if len(self.model.parameterComponents()) > 0:
            maxX = max([
                i.position().x()
                for i in list(self.model.parameterComponents().values())
            ])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
        else:
            newX = MARGIN + BOX_WIDTH / 2
        return QPointF(newX, MARGIN + BOX_HEIGHT / 2)

    def textChanged(self):
        text = self.searchBox.text().strip(' ').lower()
        for item in list(self.disabledProviderItems.values()):
            item.setHidden(True)
        self._filterItem(self.algorithmTree.invisibleRootItem(),
                         [t for t in text.split(' ') if t])
        if text:
            self.algorithmTree.expandAll()
            self.disabledWithMatchingAlgs = []
            for provider in QgsApplication.processingRegistry().providers():
                if not provider.isActive():
                    for alg in provider.algorithms():
                        if text in alg.name():
                            self.disabledWithMatchingAlgs.append(provider.id())
                            break
        else:
            self.algorithmTree.collapseAll()

    def _filterItem(self, item, text):
        if (item.childCount() > 0):
            show = False
            for i in range(item.childCount()):
                child = item.child(i)
                showChild = self._filterItem(child, text)
                show = (showChild or show) and item not in list(
                    self.disabledProviderItems.values())
            item.setHidden(not show)
            return show
        elif isinstance(item, (TreeAlgorithmItem, TreeActionItem)):
            # hide if every part of text is not contained somewhere in either the item text or item user role
            item_text = [
                item.text(0).lower(),
                item.data(0, ModelerDialog.NAME_ROLE).lower()
            ]
            if isinstance(item, TreeAlgorithmItem):
                item_text.append(item.alg.id().lower())
                if item.alg.shortDescription():
                    item_text.append(item.alg.shortDescription().lower())
                item_text.extend(
                    [t.lower() for t in item.data(0, ModelerDialog.TAG_ROLE)])

            hide = bool(text) and not all(
                any(part in t for t in item_text) for part in text)

            item.setHidden(hide)
            return not hide
        else:
            item.setHidden(True)
            return False

    def fillInputsTree(self):
        icon = QIcon(os.path.join(pluginPath, 'images', 'input.svg'))
        parametersItem = QTreeWidgetItem()
        parametersItem.setText(0, self.tr('Parameters'))
        sortedParams = sorted(
            QgsApplication.instance().processingRegistry().parameterTypes(),
            key=lambda pt: pt.name())
        for param in sortedParams:
            if param.flags() & QgsProcessingParameterType.ExposeToModeler:
                paramItem = QTreeWidgetItem()
                paramItem.setText(0, param.name())
                paramItem.setData(0, Qt.UserRole, param.id())
                paramItem.setIcon(0, icon)
                paramItem.setFlags(Qt.ItemIsEnabled | Qt.ItemIsSelectable
                                   | Qt.ItemIsDragEnabled)
                paramItem.setToolTip(0, param.description())
                parametersItem.addChild(paramItem)
        self.inputsTree.addTopLevelItem(parametersItem)
        parametersItem.setExpanded(True)

    def addAlgorithm(self):
        item = self.algorithmTree.currentItem()
        if isinstance(item, TreeAlgorithmItem):
            alg = QgsApplication.processingRegistry().createAlgorithmById(
                item.alg.id())
            self._addAlgorithm(alg)

    def _addAlgorithm(self, alg, pos=None):
        dlg = ModelerParametersDialog(alg, self.model)
        if dlg.exec_():
            alg = dlg.createAlgorithm()
            if pos is None:
                alg.setPosition(self.getPositionForAlgorithmItem())
            else:
                alg.setPosition(pos)
            from processing.modeler.ModelerGraphicItem import ModelerGraphicItem
            for i, out in enumerate(alg.modelOutputs()):
                alg.modelOutput(out).setPosition(
                    alg.position() +
                    QPointF(ModelerGraphicItem.BOX_WIDTH, (i + 1.5) *
                            ModelerGraphicItem.BOX_HEIGHT))
            self.model.addChildAlgorithm(alg)
            self.repaintModel()
            self.hasChanged = True

    def getPositionForAlgorithmItem(self):
        MARGIN = 20
        BOX_WIDTH = 200
        BOX_HEIGHT = 80
        if self.model.childAlgorithms():
            maxX = max([
                alg.position().x()
                for alg in list(self.model.childAlgorithms().values())
            ])
            maxY = max([
                alg.position().y()
                for alg in list(self.model.childAlgorithms().values())
            ])
            newX = min(MARGIN + BOX_WIDTH + maxX, self.CANVAS_SIZE - BOX_WIDTH)
            newY = min(MARGIN + BOX_HEIGHT + maxY,
                       self.CANVAS_SIZE - BOX_HEIGHT)
        else:
            newX = MARGIN + BOX_WIDTH / 2
            newY = MARGIN * 2 + BOX_HEIGHT + BOX_HEIGHT / 2
        return QPointF(newX, newY)

    def fillTreeUsingProviders(self):
        self.algorithmTree.clear()
        self.disabledProviderItems = {}

        # TODO - replace with proper model for toolbox!

        # first add qgis/native providers, since they create top level groups
        for provider in QgsApplication.processingRegistry().providers():
            if provider.id() in ('qgis', 'native', '3d'):
                self.addAlgorithmsFromProvider(
                    provider, self.algorithmTree.invisibleRootItem())
            else:
                continue
        self.algorithmTree.sortItems(0, Qt.AscendingOrder)

        for provider in QgsApplication.processingRegistry().providers():
            if provider.id() in ('qgis', 'native', '3d'):
                # already added
                continue
            else:
                providerItem = TreeProviderItem(provider, self.algorithmTree,
                                                self)

                # insert non-native providers at end of tree, alphabetically
                for i in range(
                        self.algorithmTree.invisibleRootItem().childCount()):
                    child = self.algorithmTree.invisibleRootItem().child(i)
                    if isinstance(child, TreeProviderItem):
                        if child.text(0) > providerItem.text(0):
                            break

                self.algorithmTree.insertTopLevelItem(i + 1, providerItem)

                if not provider.isActive():
                    providerItem.setHidden(True)
                    self.disabledProviderItems[provider.id()] = providerItem

    def addAlgorithmsFromProvider(self, provider, parent):
        groups = {}
        count = 0
        algs = provider.algorithms()
        active = provider.isActive()

        # Add algorithms
        for alg in algs:
            if alg.flags() & QgsProcessingAlgorithm.FlagHideFromModeler:
                continue
            groupItem = None
            if alg.group() in groups:
                groupItem = groups[alg.group()]
            else:
                # check if group already exists
                for i in range(parent.childCount()):
                    if parent.child(i).text(0) == alg.group():
                        groupItem = parent.child(i)
                        groups[alg.group()] = groupItem
                        break

                if not groupItem:
                    groupItem = TreeGroupItem(alg.group())
                    if not active:
                        groupItem.setInactive()
                    if provider.id() in ('qgis', 'native', '3d'):
                        groupItem.setIcon(0, provider.icon())
                    groups[alg.group()] = groupItem
            algItem = TreeAlgorithmItem(alg)
            if not active:
                algItem.setForeground(0, Qt.darkGray)
            groupItem.addChild(algItem)
            count += 1

        text = provider.name()

        if not provider.id() in ('qgis', 'native', '3d'):
            if not active:

                def activateProvider():
                    self.activateProvider(provider.id())

                label = QLabel(
                    text + "&nbsp;&nbsp;&nbsp;&nbsp;<a href='%s'>Activate</a>")
                label.setStyleSheet(
                    "QLabel {background-color: white; color: grey;}")
                label.linkActivated.connect(activateProvider)
                self.algorithmTree.setItemWidget(parent, 0, label)
            else:
                parent.setText(0, text)

        for group, groupItem in sorted(groups.items(),
                                       key=operator.itemgetter(1)):
            parent.addChild(groupItem)

        if not provider.id() in ('qgis', 'native', '3d'):
            parent.setHidden(parent.childCount() == 0)
class ModelerParametersPanelWidget(QgsPanelWidget):
    def __init__(self,
                 alg,
                 model,
                 algName=None,
                 configuration=None,
                 dialog=None,
                 context=None):
        super().__init__()
        self._alg = alg  # The algorithm to define in this dialog. It is an instance of QgsProcessingAlgorithm
        self.model = model  # The model this algorithm is going to be added to. It is an instance of QgsProcessingModelAlgorithm
        self.childId = algName  # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
        self.configuration = configuration
        self.context = context
        self.dialog = dialog
        self.widget_labels = {}

        class ContextGenerator(QgsProcessingContextGenerator):
            def __init__(self, context):
                super().__init__()
                self.processing_context = context

            def processingContext(self):
                return self.processing_context

        self.context_generator = ContextGenerator(self.context)

        self.setupUi()
        self.params = None

    def algorithm(self):
        return self._alg

    def setupUi(self):
        self.showAdvanced = False
        self.wrappers = {}
        self.algorithmItem = None

        self.mainLayout = QVBoxLayout()
        self.mainLayout.setContentsMargins(0, 0, 0, 0)

        self.verticalLayout = QVBoxLayout()

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.verticalLayout.addWidget(self.bar)

        hLayout = QHBoxLayout()
        hLayout.setContentsMargins(0, 0, 0, 0)
        descriptionLabel = QLabel(self.tr("Description"))
        self.descriptionBox = QLineEdit()
        self.descriptionBox.setText(self._alg.displayName())
        hLayout.addWidget(descriptionLabel)
        hLayout.addWidget(self.descriptionBox)
        self.verticalLayout.addLayout(hLayout)
        line = QFrame()
        line.setFrameShape(QFrame.HLine)
        line.setFrameShadow(QFrame.Sunken)
        self.verticalLayout.addWidget(line)

        widget_context = QgsProcessingParameterWidgetContext()
        widget_context.setProject(QgsProject.instance())
        if iface is not None:
            widget_context.setMapCanvas(iface.mapCanvas())
            widget_context.setActiveLayer(iface.activeLayer())

        widget_context.setModel(self.model)
        widget_context.setModelChildAlgorithmId(self.childId)

        self.algorithmItem = QgsGui.instance().processingGuiRegistry(
        ).algorithmConfigurationWidget(self._alg)
        if self.algorithmItem:
            self.algorithmItem.setWidgetContext(widget_context)
            self.algorithmItem.registerProcessingContextGenerator(
                self.context_generator)
            if self.configuration:
                self.algorithmItem.setConfiguration(self.configuration)
            self.verticalLayout.addWidget(self.algorithmItem)

        for param in self._alg.parameterDefinitions():
            if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
                self.advancedButton = QPushButton()
                self.advancedButton.setText(
                    self.tr('Show advanced parameters'))
                self.advancedButton.clicked.connect(
                    self.showAdvancedParametersClicked)
                advancedButtonHLayout = QHBoxLayout()
                advancedButtonHLayout.addWidget(self.advancedButton)
                advancedButtonHLayout.addStretch()
                self.verticalLayout.addLayout(advancedButtonHLayout)
                break
        for param in self._alg.parameterDefinitions():
            if param.isDestination(
            ) or param.flags() & QgsProcessingParameterDefinition.FlagHidden:
                continue

            wrapper = WidgetWrapperFactory.create_wrapper(param, self.dialog)
            self.wrappers[param.name()] = wrapper

            wrapper.setWidgetContext(widget_context)
            wrapper.registerProcessingContextGenerator(self.context_generator)
            if issubclass(wrapper.__class__,
                          QgsProcessingModelerParameterWidget):
                widget = wrapper
            else:
                widget = wrapper.widget
            if widget is not None:
                if issubclass(wrapper.__class__,
                              QgsProcessingModelerParameterWidget):
                    label = wrapper.createLabel()
                else:
                    tooltip = param.description()
                    widget.setToolTip(tooltip)
                    label = wrapper.label
                self.widget_labels[param.name()] = label

                if param.flags(
                ) & QgsProcessingParameterDefinition.FlagAdvanced:
                    label.setVisible(self.showAdvanced)
                    widget.setVisible(self.showAdvanced)

                self.verticalLayout.addWidget(label)
                self.verticalLayout.addWidget(widget)

        for output in self._alg.destinationParameterDefinitions():
            if output.flags() & QgsProcessingParameterDefinition.FlagHidden:
                continue

            widget = QgsGui.processingGuiRegistry(
            ).createModelerParameterWidget(self.model, self.childId, output,
                                           self.context)
            widget.setDialog(self.dialog)
            widget.setWidgetContext(widget_context)
            widget.registerProcessingContextGenerator(self.context_generator)

            self.wrappers[output.name()] = widget

            item = QgsFilterLineEdit()
            if hasattr(item, 'setPlaceholderText'):
                item.setPlaceholderText(
                    self.tr('[Enter name if this is a final result]'))

            label = widget.createLabel()
            if label is not None:
                self.verticalLayout.addWidget(label)

            self.verticalLayout.addWidget(widget)

        label = QLabel(' ')
        self.verticalLayout.addWidget(label)
        label = QLabel(self.tr('Dependencies'))
        self.dependencies_panel = QgsModelChildDependenciesWidget(
            self, self.model, self.childId)
        self.verticalLayout.addWidget(label)
        self.verticalLayout.addWidget(self.dependencies_panel)
        self.verticalLayout.addStretch(1000)

        self.setPreviousValues()
        self.verticalLayout2 = QVBoxLayout()
        self.verticalLayout2.setSpacing(2)
        self.verticalLayout2.setMargin(0)

        self.paramPanel = QWidget()
        self.paramPanel.setLayout(self.verticalLayout)
        self.scrollArea = QgsScrollArea()
        self.scrollArea.setWidget(self.paramPanel)
        self.scrollArea.setWidgetResizable(True)
        self.scrollArea.setFrameStyle(QFrame.NoFrame)

        self.verticalLayout2.addWidget(self.scrollArea)

        w = QWidget()
        w.setLayout(self.verticalLayout2)
        self.mainLayout.addWidget(w)
        self.setLayout(self.mainLayout)

    def showAdvancedParametersClicked(self):
        self.showAdvanced = not self.showAdvanced
        if self.showAdvanced:
            self.advancedButton.setText(self.tr('Hide advanced parameters'))
        else:
            self.advancedButton.setText(self.tr('Show advanced parameters'))
        for param in self._alg.parameterDefinitions():
            if param.flags() & QgsProcessingParameterDefinition.FlagAdvanced:
                wrapper = self.wrappers[param.name()]
                if issubclass(wrapper.__class__,
                              QgsProcessingModelerParameterWidget):
                    wrapper.setVisible(self.showAdvanced)
                else:
                    wrapper.widget.setVisible(self.showAdvanced)

                self.widget_labels[param.name()].setVisible(self.showAdvanced)

    def getAvailableValuesOfType(self, paramType, outTypes=[], dataTypes=[]):
        # upgrade paramType to list
        if paramType is None:
            paramType = []
        elif not isinstance(paramType, (tuple, list)):
            paramType = [paramType]
        if outTypes is None:
            outTypes = []
        elif not isinstance(outTypes, (tuple, list)):
            outTypes = [outTypes]

        return self.model.availableSourcesForChild(self.childId, [
            p.typeName() for p in paramType
            if issubclass(p, QgsProcessingParameterDefinition)
        ], [
            o.typeName()
            for o in outTypes if issubclass(o, QgsProcessingOutputDefinition)
        ], dataTypes)

    def resolveValueDescription(self, value):
        if isinstance(value, QgsProcessingModelChildParameterSource):
            if value.source(
            ) == QgsProcessingModelChildParameterSource.StaticValue:
                return value.staticValue()
            elif value.source(
            ) == QgsProcessingModelChildParameterSource.ModelParameter:
                return self.model.parameterDefinition(
                    value.parameterName()).description()
            elif value.source(
            ) == QgsProcessingModelChildParameterSource.ChildOutput:
                alg = self.model.childAlgorithm(value.outputChildId())

                output_name = alg.algorithm().outputDefinition(
                    value.outputName()).description()
                # see if this output has been named by the model designer -- if so, we use that friendly name
                for name, output in alg.modelOutputs().items():
                    if output.childOutputName() == value.outputName():
                        output_name = name
                        break

                return self.tr("'{0}' from algorithm '{1}'").format(
                    output_name, alg.description())

        return value

    def setPreviousValues(self):
        if self.childId is not None:
            alg = self.model.childAlgorithm(self.childId)
            self.descriptionBox.setText(alg.description())
            for param in alg.algorithm().parameterDefinitions():
                if param.isDestination() or param.flags(
                ) & QgsProcessingParameterDefinition.FlagHidden:
                    continue
                value = None
                if param.name() in alg.parameterSources():
                    value = alg.parameterSources()[param.name()]
                    if isinstance(value, list) and len(value) == 1:
                        value = value[0]
                    elif isinstance(value, list) and len(value) == 0:
                        value = None

                wrapper = self.wrappers[param.name()]
                if issubclass(wrapper.__class__,
                              QgsProcessingModelerParameterWidget):
                    if value is None:
                        value = QgsProcessingModelChildParameterSource.fromStaticValue(
                            param.defaultValue())

                    wrapper.setWidgetValue(value)
                else:
                    if value is None:
                        value = param.defaultValue()

                    if isinstance(
                            value, QgsProcessingModelChildParameterSource
                    ) and value.source(
                    ) == QgsProcessingModelChildParameterSource.StaticValue:
                        value = value.staticValue()
                    wrapper.setValue(value)

            for output in self.algorithm().destinationParameterDefinitions():
                if output.flags(
                ) & QgsProcessingParameterDefinition.FlagHidden:
                    continue

                model_output_name = None
                for name, out in alg.modelOutputs().items():
                    if out.childId() == self.childId and out.childOutputName(
                    ) == output.name():
                        # this destination parameter is linked to a model output
                        model_output_name = out.name()
                        break

                value = None
                if model_output_name is None and output.name(
                ) in alg.parameterSources():
                    value = alg.parameterSources()[output.name()]
                    if isinstance(value, list) and len(value) == 1:
                        value = value[0]
                    elif isinstance(value, list) and len(value) == 0:
                        value = None

                wrapper = self.wrappers[output.name()]

                if model_output_name is not None:
                    wrapper.setToModelOutput(model_output_name)
                elif value is not None or output.defaultValue() is not None:
                    if value is None:
                        value = QgsProcessingModelChildParameterSource.fromStaticValue(
                            output.defaultValue())

                    wrapper.setWidgetValue(value)

            self.dependencies_panel.setValue(alg.dependencies())

    def createAlgorithm(self):
        alg = QgsProcessingModelChildAlgorithm(self._alg.id())
        if not self.childId:
            alg.generateChildId(self.model)
        else:
            alg.setChildId(self.childId)
        alg.setDescription(self.descriptionBox.text())
        if self.algorithmItem:
            alg.setConfiguration(self.algorithmItem.configuration())
            self._alg = alg.algorithm().create(
                self.algorithmItem.configuration())
        for param in self._alg.parameterDefinitions():
            if param.isDestination(
            ) or param.flags() & QgsProcessingParameterDefinition.FlagHidden:
                continue
            try:
                wrapper = self.wrappers[param.name()]
                if issubclass(wrapper.__class__, WidgetWrapper):
                    val = wrapper.value()
                elif issubclass(wrapper.__class__,
                                QgsProcessingModelerParameterWidget):
                    val = wrapper.value()
                else:
                    val = wrapper.parameterValue()
            except InvalidParameterValue:
                val = None

            if isinstance(val, QgsProcessingModelChildParameterSource):
                val = [val]
            elif not (isinstance(val, list) and all([
                    isinstance(subval, QgsProcessingModelChildParameterSource)
                    for subval in val
            ])):
                val = [
                    QgsProcessingModelChildParameterSource.fromStaticValue(val)
                ]

            valid = True
            for subval in val:
                if (isinstance(subval, QgsProcessingModelChildParameterSource)
                        and subval.source() == QgsProcessingModelChildParameterSource.StaticValue
                        and not param.checkValueIsAcceptable(subval.staticValue())) \
                        or (subval is None and not param.flags() & QgsProcessingParameterDefinition.FlagOptional):
                    valid = False
                    break

            if valid:
                alg.addParameterSources(param.name(), val)

        outputs = {}
        for output in self._alg.destinationParameterDefinitions():
            if not output.flags(
            ) & QgsProcessingParameterDefinition.FlagHidden:
                wrapper = self.wrappers[output.name()]

                if wrapper.isModelOutput():
                    name = wrapper.modelOutputName()
                    if name:
                        model_output = QgsProcessingModelOutput(name, name)
                        model_output.setChildId(alg.childId())
                        model_output.setChildOutputName(output.name())
                        outputs[name] = model_output
                else:
                    val = wrapper.value()

                    if isinstance(val, QgsProcessingModelChildParameterSource):
                        val = [val]

                    alg.addParameterSources(output.name(), val)

            if output.flags(
            ) & QgsProcessingParameterDefinition.FlagIsModelOutput:
                if output.name() not in outputs:
                    model_output = QgsProcessingModelOutput(
                        output.name(), output.name())
                    model_output.setChildId(alg.childId())
                    model_output.setChildOutputName(output.name())
                    outputs[output.name()] = model_output

        alg.setModelOutputs(outputs)
        alg.setDependencies(self.dependencies_panel.value())

        return alg
Beispiel #21
0
    def __init__(self, alg):
        super(AlgorithmDialogBase, self).__init__(iface.mainWindow() if iface else None)
        self.setupUi(self)

        # don't collapse parameters panel
        self.splitter.setCollapsible(0, False)

        # add collapse button to splitter
        splitterHandle = self.splitter.handle(1)
        handleLayout = QVBoxLayout()
        handleLayout.setContentsMargins(0, 0, 0, 0)
        self.btnCollapse = QToolButton(splitterHandle)
        self.btnCollapse.setAutoRaise(True)
        self.btnCollapse.setFixedSize(12, 12)
        self.btnCollapse.setCursor(Qt.ArrowCursor)
        handleLayout.addWidget(self.btnCollapse)
        handleLayout.addStretch()
        splitterHandle.setLayout(handleLayout)

        self.settings = QgsSettings()
        self.splitter.restoreState(self.settings.value("/Processing/dialogBaseSplitter", QByteArray()))
        self.restoreGeometry(self.settings.value("/Processing/dialogBase", QByteArray()))
        self.splitterState = self.splitter.saveState()
        self.splitterChanged(0, 0)

        self.executed = False
        self.mainWidget = None
        self.alg = alg

        self.setWindowTitle(self.alg.displayName())

        self.buttonBox.rejected.connect(self.reject)
        self.buttonBox.accepted.connect(self.accept)

        # Rename OK button to Run
        self.btnRun = self.buttonBox.button(QDialogButtonBox.Ok)
        self.btnRun.setText(self.tr('Run'))

        self.buttonCancel.setEnabled(False)

        self.btnClose = self.buttonBox.button(QDialogButtonBox.Close)

        self.buttonBox.helpRequested.connect(self.openHelp)

        self.btnCollapse.clicked.connect(self.toggleCollapsed)
        self.splitter.splitterMoved.connect(self.splitterChanged)

        # desktop = QDesktopWidget()
        # if desktop.physicalDpiX() > 96:
        # self.txtHelp.setZoomFactor(desktop.physicalDpiX() / 96)

        algHelp = self.formatHelp(self.alg)
        if algHelp is None:
            self.textShortHelp.hide()
        else:
            self.textShortHelp.document().setDefaultStyleSheet('''.summary { margin-left: 10px; margin-right: 10px; }
                                                    h2 { color: #555555; padding-bottom: 15px; }
                                                    a { text-decoration: none; color: #3498db; font-weight: bold; }
                                                    p { color: #666666; }
                                                    b { color: #333333; }
                                                    dl dd { margin-bottom: 5px; }''')
            self.textShortHelp.setHtml(algHelp)

        def linkClicked(url):
            webbrowser.open(url.toString())

        self.textShortHelp.anchorClicked.connect(linkClicked)

        self.showDebug = ProcessingConfig.getSetting(
            ProcessingConfig.SHOW_DEBUG_IN_DIALOG)
class ModelerParametersWidget(QWidget):
    def __init__(self,
                 alg,
                 model,
                 algName=None,
                 configuration=None,
                 dialog=None,
                 context=None):
        super().__init__()
        self._alg = alg  # The algorithm to define in this dialog. It is an instance of QgsProcessingAlgorithm
        self.model = model  # The model this algorithm is going to be added to. It is an instance of QgsProcessingModelAlgorithm
        self.childId = algName  # The name of the algorithm in the model, in case we are editing it and not defining it for the first time
        self.configuration = configuration
        self.context = context
        self.dialog = dialog

        self.widget = ModelerParametersPanelWidget(alg, model, algName,
                                                   configuration, dialog,
                                                   context)

        class ContextGenerator(QgsProcessingContextGenerator):
            def __init__(self, context):
                super().__init__()
                self.processing_context = context

            def processingContext(self):
                return self.processing_context

        self.context_generator = ContextGenerator(self.context)

        self.setupUi()
        self.params = None

    def algorithm(self):
        return self._alg

    def switchToCommentTab(self):
        self.tab.setCurrentIndex(1)
        self.commentEdit.setFocus()
        self.commentEdit.selectAll()

    def setupUi(self):
        self.mainLayout = QVBoxLayout()
        self.mainLayout.setContentsMargins(0, 0, 0, 0)
        self.tab = QTabWidget()
        self.mainLayout.addWidget(self.tab)

        self.param_widget = QgsPanelWidgetStack()
        self.widget.setDockMode(True)
        self.param_widget.setMainPanel(self.widget)

        self.tab.addTab(self.param_widget, self.tr('Properties'))

        self.commentLayout = QVBoxLayout()
        self.commentEdit = QTextEdit()
        self.commentEdit.setAcceptRichText(False)
        self.commentLayout.addWidget(self.commentEdit, 1)

        hl = QHBoxLayout()
        hl.setContentsMargins(0, 0, 0, 0)
        hl.addWidget(QLabel(self.tr('Color')))
        self.comment_color_button = QgsColorButton()
        self.comment_color_button.setAllowOpacity(True)
        self.comment_color_button.setWindowTitle(self.tr('Comment Color'))
        self.comment_color_button.setShowNull(True, self.tr('Default'))
        hl.addWidget(self.comment_color_button)
        self.commentLayout.addLayout(hl)

        w2 = QWidget()
        w2.setLayout(self.commentLayout)
        self.tab.addTab(w2, self.tr('Comments'))

        self.setLayout(self.mainLayout)

    def setComments(self, text):
        self.commentEdit.setPlainText(text)

    def comments(self):
        return self.commentEdit.toPlainText()

    def setCommentColor(self, color):
        if color.isValid():
            self.comment_color_button.setColor(color)
        else:
            self.comment_color_button.setToNull()

    def commentColor(self):
        return self.comment_color_button.color(
        ) if not self.comment_color_button.isNull() else QColor()

    def getAvailableValuesOfType(self, paramType, outTypes=[], dataTypes=[]):
        return self.widget.getAvailableValuesOfType(paramType, outTypes,
                                                    dataTypes)

    def resolveValueDescription(self, value):
        return self.widget.resolveValueDescription(value)

    def setPreviousValues(self):
        self.widget.setPreviousValues()

    def createAlgorithm(self):
        alg = self.widget.createAlgorithm()
        if alg:
            alg.comment().setDescription(self.comments())
            alg.comment().setColor(self.commentColor())
        return alg
Beispiel #23
0
    def __init__(self, model=None):
        super().__init__(None)
        self.setAttribute(Qt.WA_DeleteOnClose)

        self.setupUi(self)

        self._variables_scope = None

        # LOTS of bug reports when we include the dock creation in the UI file
        # see e.g. #16428, #19068
        # So just roll it all by hand......!
        self.propertiesDock = QgsDockWidget(self)
        self.propertiesDock.setFeatures(
            QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.propertiesDock.setObjectName("propertiesDock")
        propertiesDockContents = QWidget()
        self.verticalDockLayout_1 = QVBoxLayout(propertiesDockContents)
        self.verticalDockLayout_1.setContentsMargins(0, 0, 0, 0)
        self.verticalDockLayout_1.setSpacing(0)
        self.scrollArea_1 = QgsScrollArea(propertiesDockContents)
        sizePolicy = QSizePolicy(QSizePolicy.MinimumExpanding,
                                 QSizePolicy.MinimumExpanding)
        sizePolicy.setHorizontalStretch(0)
        sizePolicy.setVerticalStretch(0)
        sizePolicy.setHeightForWidth(self.scrollArea_1.sizePolicy().hasHeightForWidth())
        self.scrollArea_1.setSizePolicy(sizePolicy)
        self.scrollArea_1.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_1.setFrameShape(QFrame.NoFrame)
        self.scrollArea_1.setFrameShadow(QFrame.Plain)
        self.scrollArea_1.setWidgetResizable(True)
        self.scrollAreaWidgetContents_1 = QWidget()
        self.gridLayout = QGridLayout(self.scrollAreaWidgetContents_1)
        self.gridLayout.setContentsMargins(6, 6, 6, 6)
        self.gridLayout.setSpacing(4)
        self.label_1 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_1, 0, 0, 1, 1)
        self.textName = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textName, 0, 1, 1, 1)
        self.label_2 = QLabel(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
        self.textGroup = QLineEdit(self.scrollAreaWidgetContents_1)
        self.gridLayout.addWidget(self.textGroup, 1, 1, 1, 1)
        self.label_1.setText(self.tr("Name"))
        self.textName.setToolTip(self.tr("Enter model name here"))
        self.label_2.setText(self.tr("Group"))
        self.textGroup.setToolTip(self.tr("Enter group name here"))
        self.scrollArea_1.setWidget(self.scrollAreaWidgetContents_1)
        self.verticalDockLayout_1.addWidget(self.scrollArea_1)
        self.propertiesDock.setWidget(propertiesDockContents)
        self.propertiesDock.setWindowTitle(self.tr("Model Properties"))

        self.inputsDock = QgsDockWidget(self)
        self.inputsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.inputsDock.setObjectName("inputsDock")
        self.inputsDockContents = QWidget()
        self.verticalLayout_3 = QVBoxLayout(self.inputsDockContents)
        self.verticalLayout_3.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_2 = QgsScrollArea(self.inputsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_2.sizePolicy().hasHeightForWidth())
        self.scrollArea_2.setSizePolicy(sizePolicy)
        self.scrollArea_2.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_2.setFrameShape(QFrame.NoFrame)
        self.scrollArea_2.setFrameShadow(QFrame.Plain)
        self.scrollArea_2.setWidgetResizable(True)
        self.scrollAreaWidgetContents_2 = QWidget()
        self.verticalLayout = QVBoxLayout(self.scrollAreaWidgetContents_2)
        self.verticalLayout.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout.setSpacing(0)
        self.inputsTree = QTreeWidget(self.scrollAreaWidgetContents_2)
        self.inputsTree.setAlternatingRowColors(True)
        self.inputsTree.header().setVisible(False)
        self.verticalLayout.addWidget(self.inputsTree)
        self.scrollArea_2.setWidget(self.scrollAreaWidgetContents_2)
        self.verticalLayout_3.addWidget(self.scrollArea_2)
        self.inputsDock.setWidget(self.inputsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.inputsDock)
        self.inputsDock.setWindowTitle(self.tr("Inputs"))

        self.algorithmsDock = QgsDockWidget(self)
        self.algorithmsDock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.algorithmsDock.setObjectName("algorithmsDock")
        self.algorithmsDockContents = QWidget()
        self.verticalLayout_4 = QVBoxLayout(self.algorithmsDockContents)
        self.verticalLayout_4.setContentsMargins(0, 0, 0, 0)
        self.scrollArea_3 = QgsScrollArea(self.algorithmsDockContents)
        sizePolicy.setHeightForWidth(self.scrollArea_3.sizePolicy().hasHeightForWidth())
        self.scrollArea_3.setSizePolicy(sizePolicy)
        self.scrollArea_3.setFocusPolicy(Qt.WheelFocus)
        self.scrollArea_3.setFrameShape(QFrame.NoFrame)
        self.scrollArea_3.setFrameShadow(QFrame.Plain)
        self.scrollArea_3.setWidgetResizable(True)
        self.scrollAreaWidgetContents_3 = QWidget()
        self.verticalLayout_2 = QVBoxLayout(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.setContentsMargins(0, 0, 0, 0)
        self.verticalLayout_2.setSpacing(4)
        self.searchBox = QgsFilterLineEdit(self.scrollAreaWidgetContents_3)
        self.verticalLayout_2.addWidget(self.searchBox)
        self.algorithmTree = QgsProcessingToolboxTreeView(None,
                                                          QgsApplication.processingRegistry())
        self.algorithmTree.setAlternatingRowColors(True)
        self.algorithmTree.header().setVisible(False)
        self.verticalLayout_2.addWidget(self.algorithmTree)
        self.scrollArea_3.setWidget(self.scrollAreaWidgetContents_3)
        self.verticalLayout_4.addWidget(self.scrollArea_3)
        self.algorithmsDock.setWidget(self.algorithmsDockContents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.algorithmsDock)
        self.algorithmsDock.setWindowTitle(self.tr("Algorithms"))
        self.searchBox.setToolTip(self.tr("Enter algorithm name to filter list"))
        self.searchBox.setShowSearchIcon(True)

        self.variables_dock = QgsDockWidget(self)
        self.variables_dock.setFeatures(QDockWidget.DockWidgetFloatable | QDockWidget.DockWidgetMovable)
        self.variables_dock.setObjectName("variablesDock")
        self.variables_dock_contents = QWidget()
        vl_v = QVBoxLayout()
        vl_v.setContentsMargins(0, 0, 0, 0)
        self.variables_editor = QgsVariableEditorWidget()
        vl_v.addWidget(self.variables_editor)
        self.variables_dock_contents.setLayout(vl_v)
        self.variables_dock.setWidget(self.variables_dock_contents)
        self.addDockWidget(Qt.DockWidgetArea(1), self.variables_dock)
        self.variables_dock.setWindowTitle(self.tr("Variables"))
        self.addDockWidget(Qt.DockWidgetArea(1), self.propertiesDock)
        self.tabifyDockWidget(self.propertiesDock, self.variables_dock)
        self.variables_editor.scopeChanged.connect(self.variables_changed)

        self.bar = QgsMessageBar()
        self.bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.centralWidget().layout().insertWidget(0, self.bar)

        try:
            self.setDockOptions(self.dockOptions() | QMainWindow.GroupedDragging)
        except:
            pass

        if iface is not None:
            self.mToolbar.setIconSize(iface.iconSize())
            self.setStyleSheet(iface.mainWindow().styleSheet())

        self.toolbutton_export_to_script = QToolButton()
        self.toolbutton_export_to_script.setPopupMode(QToolButton.InstantPopup)
        self.export_to_script_algorithm_action = QAction(QCoreApplication.translate('ModelerDialog', 'Export as Script Algorithm…'))
        self.toolbutton_export_to_script.addActions([self.export_to_script_algorithm_action])
        self.mToolbar.insertWidget(self.mActionExportImage, self.toolbutton_export_to_script)
        self.export_to_script_algorithm_action.triggered.connect(self.export_as_script_algorithm)

        self.mActionOpen.setIcon(
            QgsApplication.getThemeIcon('/mActionFileOpen.svg'))
        self.mActionSave.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSave.svg'))
        self.mActionSaveAs.setIcon(
            QgsApplication.getThemeIcon('/mActionFileSaveAs.svg'))
        self.mActionSaveInProject.setIcon(
            QgsApplication.getThemeIcon('/mAddToProject.svg'))
        self.mActionZoomActual.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomActual.svg'))
        self.mActionZoomIn.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomIn.svg'))
        self.mActionZoomOut.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomOut.svg'))
        self.mActionExportImage.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveMapAsImage.svg'))
        self.mActionZoomToItems.setIcon(
            QgsApplication.getThemeIcon('/mActionZoomFullExtent.svg'))
        self.mActionExportPdf.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPDF.svg'))
        self.mActionExportSvg.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsSVG.svg'))
        self.toolbutton_export_to_script.setIcon(
            QgsApplication.getThemeIcon('/mActionSaveAsPython.svg'))
        self.mActionEditHelp.setIcon(
            QgsApplication.getThemeIcon('/mActionEditHelpContent.svg'))
        self.mActionRun.setIcon(
            QgsApplication.getThemeIcon('/mActionStart.svg'))

        self.addDockWidget(Qt.LeftDockWidgetArea, self.propertiesDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.inputsDock)
        self.addDockWidget(Qt.LeftDockWidgetArea, self.algorithmsDock)
        self.tabifyDockWidget(self.inputsDock, self.algorithmsDock)
        self.inputsDock.raise_()

        self.setWindowFlags(Qt.WindowMinimizeButtonHint |
                            Qt.WindowMaximizeButtonHint |
                            Qt.WindowCloseButtonHint)

        settings = QgsSettings()
        self.restoreState(settings.value("/Processing/stateModeler", QByteArray()))
        self.restoreGeometry(settings.value("/Processing/geometryModeler", QByteArray()))

        self.scene = ModelerScene(self, dialog=self)
        self.scene.setSceneRect(QRectF(0, 0, self.CANVAS_SIZE, self.CANVAS_SIZE))

        self.view.setScene(self.scene)
        self.view.setAcceptDrops(True)
        self.view.ensureVisible(0, 0, 10, 10)
        self.view.scale(QgsApplication.desktop().logicalDpiX() / 96, QgsApplication.desktop().logicalDpiX() / 96)

        def _dragEnterEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                event.acceptProposedAction()
            else:
                event.ignore()

        def _dropEvent(event):
            def alg_dropped(algorithm_id, pos):
                alg = QgsApplication.processingRegistry().createAlgorithmById(algorithm_id)
                if alg is not None:
                    self._addAlgorithm(alg, pos)
                else:
                    assert False, algorithm_id

            def input_dropped(id, pos):
                if id in [param.id() for param in QgsApplication.instance().processingRegistry().parameterTypes()]:
                    self.addInputOfType(itemId, pos)

            if event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                data = event.mimeData().data('application/x-vnd.qgis.qgis.algorithmid')
                stream = QDataStream(data, QIODevice.ReadOnly)
                algorithm_id = stream.readQString()
                QTimer.singleShot(0, lambda id=algorithm_id, pos=self.view.mapToScene(event.pos()): alg_dropped(id, pos))
                event.accept()
            elif event.mimeData().hasText():
                itemId = event.mimeData().text()
                QTimer.singleShot(0, lambda id=itemId, pos=self.view.mapToScene(event.pos()): input_dropped(id, pos))
                event.accept()
            else:
                event.ignore()

        def _dragMoveEvent(event):
            if event.mimeData().hasText() or event.mimeData().hasFormat('application/x-vnd.qgis.qgis.algorithmid'):
                event.accept()
            else:
                event.ignore()

        def _wheelEvent(event):
            self.view.setTransformationAnchor(QGraphicsView.AnchorUnderMouse)

            settings = QgsSettings()
            factor = settings.value('/qgis/zoom_favor', 2.0)

            # "Normal" mouse has an angle delta of 120, precision mouses provide data
            # faster, in smaller steps
            factor = 1.0 + (factor - 1.0) / 120.0 * abs(event.angleDelta().y())

            if (event.modifiers() == Qt.ControlModifier):
                factor = 1.0 + (factor - 1.0) / 20.0

            if event.angleDelta().y() < 0:
                factor = 1 / factor

            self.view.scale(factor, factor)

        def _enterEvent(e):
            QGraphicsView.enterEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mouseReleaseEvent(e):
            QGraphicsView.mouseReleaseEvent(self.view, e)
            self.view.viewport().setCursor(Qt.ArrowCursor)

        def _mousePressEvent(e):
            if e.button() == Qt.MidButton:
                self.previousMousePos = e.pos()
            else:
                QGraphicsView.mousePressEvent(self.view, e)

        def _mouseMoveEvent(e):
            if e.buttons() == Qt.MidButton:
                offset = self.previousMousePos - e.pos()
                self.previousMousePos = e.pos()

                self.view.verticalScrollBar().setValue(self.view.verticalScrollBar().value() + offset.y())
                self.view.horizontalScrollBar().setValue(self.view.horizontalScrollBar().value() + offset.x())
            else:
                QGraphicsView.mouseMoveEvent(self.view, e)

        self.view.setDragMode(QGraphicsView.ScrollHandDrag)
        self.view.dragEnterEvent = _dragEnterEvent
        self.view.dropEvent = _dropEvent
        self.view.dragMoveEvent = _dragMoveEvent
        self.view.wheelEvent = _wheelEvent
        self.view.enterEvent = _enterEvent
        self.view.mousePressEvent = _mousePressEvent
        self.view.mouseMoveEvent = _mouseMoveEvent

        def _mimeDataInput(items):
            mimeData = QMimeData()
            text = items[0].data(0, Qt.UserRole)
            mimeData.setText(text)
            return mimeData

        self.inputsTree.mimeData = _mimeDataInput

        self.inputsTree.setDragDropMode(QTreeWidget.DragOnly)
        self.inputsTree.setDropIndicatorShown(True)

        self.algorithms_model = ModelerToolboxModel(self, QgsApplication.processingRegistry())
        self.algorithmTree.setToolboxProxyModel(self.algorithms_model)
        self.algorithmTree.setDragDropMode(QTreeWidget.DragOnly)
        self.algorithmTree.setDropIndicatorShown(True)

        filters = QgsProcessingToolboxProxyModel.Filters(QgsProcessingToolboxProxyModel.FilterModeler)
        if ProcessingConfig.getSetting(ProcessingConfig.SHOW_ALGORITHMS_KNOWN_ISSUES):
            filters |= QgsProcessingToolboxProxyModel.FilterShowKnownIssues
        self.algorithmTree.setFilters(filters)

        if hasattr(self.searchBox, 'setPlaceholderText'):
            self.searchBox.setPlaceholderText(QCoreApplication.translate('ModelerDialog', 'Search…'))
        if hasattr(self.textName, 'setPlaceholderText'):
            self.textName.setPlaceholderText(self.tr('Enter model name here'))
        if hasattr(self.textGroup, 'setPlaceholderText'):
            self.textGroup.setPlaceholderText(self.tr('Enter group name here'))

        # Connect signals and slots
        self.inputsTree.doubleClicked.connect(self.addInput)
        self.searchBox.textChanged.connect(self.algorithmTree.setFilterString)
        self.algorithmTree.doubleClicked.connect(self.addAlgorithm)

        # Ctrl+= should also trigger a zoom in action
        ctrlEquals = QShortcut(QKeySequence("Ctrl+="), self)
        ctrlEquals.activated.connect(self.zoomIn)

        self.mActionOpen.triggered.connect(self.openModel)
        self.mActionSave.triggered.connect(self.save)
        self.mActionSaveAs.triggered.connect(self.saveAs)
        self.mActionSaveInProject.triggered.connect(self.saveInProject)
        self.mActionZoomIn.triggered.connect(self.zoomIn)
        self.mActionZoomOut.triggered.connect(self.zoomOut)
        self.mActionZoomActual.triggered.connect(self.zoomActual)
        self.mActionZoomToItems.triggered.connect(self.zoomToItems)
        self.mActionExportImage.triggered.connect(self.exportAsImage)
        self.mActionExportPdf.triggered.connect(self.exportAsPdf)
        self.mActionExportSvg.triggered.connect(self.exportAsSvg)
        #self.mActionExportPython.triggered.connect(self.exportAsPython)
        self.mActionEditHelp.triggered.connect(self.editHelp)
        self.mActionRun.triggered.connect(self.runModel)

        if model is not None:
            self.model = model.create()
            self.model.setSourceFilePath(model.sourceFilePath())
            self.textGroup.setText(self.model.group())
            self.textName.setText(self.model.displayName())
            self.repaintModel()

        else:
            self.model = QgsProcessingModelAlgorithm()
            self.model.setProvider(QgsApplication.processingRegistry().providerById('model'))
        self.update_variables_gui()

        self.fillInputsTree()

        self.view.centerOn(0, 0)
        self.help = None

        self.hasChanged = False
Beispiel #24
0
    def __init__(self, iface, parent=None):
        """Constructor."""
        super().__init__(parent)

        self.setupUi(self)

        self.setObjectName('QQuakeDialog')
        QgsGui.enableAutoGeometryRestore(self)

        self.fsdn_event_filter = FilterParameterWidget(iface, SERVICE_MANAGER.FDSNEVENT)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.fsdn_event_filter)
        self.fsdn_event_filter_container.setLayout(vl)
        self.earthquake_service_info_widget = ServiceInformationWidget(iface)
        self.fsdn_by_id_filter = FilterByIdWidget(iface, SERVICE_MANAGER.FDSNEVENT)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.fsdn_by_id_filter)
        self.fsdn_by_id_container.setLayout(vl)
        self.fdsn_by_url_widget = FetchByUrlWidget(iface, SERVICE_MANAGER.FDSNEVENT)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.fdsn_by_url_widget)
        self.fsdn_by_url_container.setLayout(vl)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.earthquake_service_info_widget)
        self.earthquake_service_info_container.setLayout(vl)

        self.macro_filter = FilterParameterWidget(iface, SERVICE_MANAGER.MACROSEISMIC)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.macro_filter)
        self.macro_filter_container.setLayout(vl)
        self.macro_by_id_filter = FilterByIdWidget(iface, SERVICE_MANAGER.MACROSEISMIC)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.macro_by_id_filter)
        self.macro_by_id_container.setLayout(vl)
        self.macro_by_url_widget = FetchByUrlWidget(iface, SERVICE_MANAGER.MACROSEISMIC)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.macro_by_url_widget)
        self.macro_by_url_container.setLayout(vl)
        self.macro_service_info_widget = ServiceInformationWidget(iface)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.macro_service_info_widget)
        self.macro_service_info_container.setLayout(vl)

        self.station_filter = FilterParameterWidget(iface, SERVICE_MANAGER.FDSNSTATION)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.station_filter)
        self.station_filter_container.setLayout(vl)
        self.station_by_id_filter = FilterStationByIdWidget(iface, SERVICE_MANAGER.FDSNSTATION)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.station_by_id_filter)
        self.station_by_id_container.setLayout(vl)
        self.station_service_info_widget = ServiceInformationWidget(iface)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.station_service_info_widget)
        self.station_service_info_container.setLayout(vl)

        self.ogc_service_widget = OgcServiceWidget(iface)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.ogc_service_widget)
        self.ogc_widget_container.setLayout(vl)
        self.ogc_service_info_widget = ServiceInformationWidget(iface)
        vl = QVBoxLayout()
        vl.setContentsMargins(0, 0, 0, 0)
        vl.addWidget(self.ogc_service_info_widget)
        self.ogc_service_info_container.setLayout(vl)

        self.message_bar = QgsMessageBar()
        self.message_bar.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Fixed)
        self.verticalLayout.insertWidget(0, self.message_bar)

        self.fsdn_event_url_text_browser.viewport().setAutoFillBackground(False)
        self.fdsn_macro_url_text_browser.viewport().setAutoFillBackground(False)
        self.fdsn_station_url_text_browser.viewport().setAutoFillBackground(False)

        self.button_box.button(QDialogButtonBox.Ok).setText(self.tr('Fetch Data'))
        self.button_box.rejected.connect(self._save_settings)

        self.iface = iface

        # OGC
        self.ogc_combo.addItem(self.tr('Web Map Services (WMS)'), SERVICE_MANAGER.WMS)
        self.ogc_combo.addItem(self.tr('Web Feature Services (WFS)'), SERVICE_MANAGER.WFS)
        self.ogc_combo.currentIndexChanged.connect(self.refreshOgcWidgets)
        self.ogc_list.currentRowChanged.connect(
            self._ogc_service_changed)

        self._refresh_services()
        SERVICE_MANAGER.refreshed.connect(self._refresh_services)

        # connect to refreshing function to refresh the UI depending on the WS
        self._refresh_fdsnevent_widgets()
        self.refreshFdsnMacroseismicWidgets()
        self.refreshFdsnStationWidgets()

        # change the UI parameter according to the web service chosen
        self.fdsn_event_list.currentRowChanged.connect(
            self._refresh_fdsnevent_widgets)
        self.fdsn_macro_list.currentRowChanged.connect(
            self.refreshFdsnMacroseismicWidgets)
        self.fdsn_station_list.currentRowChanged.connect(
            self.refreshFdsnStationWidgets)

        self.fsdn_event_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNEVENT))
        self.fsdn_by_id_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNEVENT))
        self.fdsn_by_url_widget.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNEVENT))
        self.fdsn_event_list.currentRowChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNEVENT))
        self.macro_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.MACROSEISMIC))
        self.macro_by_id_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.MACROSEISMIC))
        self.macro_by_url_widget.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.MACROSEISMIC))
        self.fdsn_macro_list.currentRowChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.MACROSEISMIC))
        self.station_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNSTATION))
        self.station_by_id_filter.changed.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNSTATION))
        self.fdsn_station_list.currentRowChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNSTATION))

        self.button_box.accepted.connect(self._getEventList)

        self.service_tab_widget.currentChanged.connect(lambda: self._refresh_url(None))

        self.fetcher = None

        QgsGui.enableAutoGeometryRestore(self)

        self.fdsn_tab_widget.currentChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNEVENT))
        self.macro_tab_widget.currentChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.MACROSEISMIC))
        self.fdsnstation_tab_widget.currentChanged.connect(lambda: self._refresh_url(SERVICE_MANAGER.FDSNSTATION))

        for b in [self.button_fdsn_new_service, self.button_macro_new_service,
                  self.button_station_new_service, self.button_ogc_new_service]:
            self._build_add_service_menu(b)

        for b in [self.button_fdsn_edit_service, self.button_macro_edit_service,
                  self.button_station_edit_service, self.button_ogc_edit_service]:
            b.clicked.connect(self._edit_service)

        for b in [self.button_fdsn_rename_service, self.button_macro_rename_service,
                  self.button_station_rename_service, self.button_ogc_rename_service]:
            b.clicked.connect(self._rename_service)

        for b in [self.button_fdsn_remove_service, self.button_macro_remove_service,
                  self.button_station_remove_service, self.button_ogc_remove_service]:
            b.clicked.connect(self._remove_service)

        for b in [self.button_fdsn_export_service, self.button_macro_export_service,
                  self.button_station_export_service, self.button_ogc_export_service]:
            b.clicked.connect(self._export_service)

        self._restore_settings()
        self._refresh_url(SERVICE_MANAGER.FDSNEVENT)
        self._refresh_url(SERVICE_MANAGER.MACROSEISMIC)
        self._refresh_url(SERVICE_MANAGER.FDSNSTATION)