def clear(self): """ Clear the widget. """ scene = self.scene() if scene is not None: scene.removeItem(self._itemgroup) else: self._itemgroup.setParentItem(None) self._itemgroup = QGraphicsWidget(self) self._itemgroup.setGeometry(self.contentsRect()) self._items.clear() for item in self._selection.values(): if scene is not None: scene.removeItem(item) else: item.setParentItem(None) self._root = None self._items = {} self._selection = OrderedDict() self._highlighted_item = None self._cluster_parent = {} self.updateGeometry()
def __init__(self, parent=None, root=None, orientation=Left, hoverHighlightEnabled=True, selectionMode=ExtendedSelection, **kwargs): super().__init__(None, **kwargs) # Filter all events from children (`ClusterGraphicsItem`s) self.setFiltersChildEvents(True) self.orientation = orientation self._root = None #: A tree with dendrogram geometry self._layout = None self._highlighted_item = None #: a list of selected items self._selection = OrderedDict() #: a {node: item} mapping self._items = { } # type: Dict[Tree, DendrogramWidget.ClusterGraphicsItem] #: container for all cluster items. self._itemgroup = QGraphicsWidget(self) self._itemgroup.setGeometry(self.contentsRect()) #: Transform mapping from 'dendrogram' to widget local coordinate #: system self._transform = QTransform() self._cluster_parent = {} self.__hoverHighlightEnabled = hoverHighlightEnabled self.__selectionMode = selectionMode self.setContentsMargins(0, 0, 0, 0) self.setRoot(root) if parent is not None: self.setParentItem(parent)
def main(argv=None): # pragma: no cover # pylint: disable=import-outside-toplevel import sys from AnyQt.QtWidgets import QGraphicsScene, QMenu from AnyQt.QtGui import QBrush app = QApplication(argv or sys.argv) scene = QGraphicsScene() view = GraphicsWidgetView(scene) scene.setParent(view) view.setContextMenuPolicy(Qt.CustomContextMenu) def context(pos): menu = QMenu(view) menu.addActions(view.actions()) a = menu.addAction("Aspect mode") am = QMenu(menu) am.addAction("Ignore", lambda: view.setAspectMode(Qt.IgnoreAspectRatio)) am.addAction("Keep", lambda: view.setAspectMode(Qt.KeepAspectRatio)) am.addAction("Keep by expanding", lambda: view.setAspectMode(Qt.KeepAspectRatioByExpanding)) a.setMenu(am) menu.popup(view.viewport().mapToGlobal(pos)) view.customContextMenuRequested.connect(context) w = QGraphicsWidget() w.setPreferredSize(500, 500) palette = w.palette() palette.setBrush(palette.Window, QBrush(Qt.red, Qt.BDiagPattern)) w.setPalette(palette) w.setAutoFillBackground(True) scene.addItem(w) view.setCentralWidget(w) view.show() return app.exec()
def replot_experiments(self): """Replot the whole quality plot. """ self.scene.clear() labels = [] max_dist = numpy.nanmax(list(filter(None, self.distances))) rug_widgets = [] group_pen = QPen(Qt.black) group_pen.setWidth(2) group_pen.setCapStyle(Qt.RoundCap) background_pen = QPen(QColor(0, 0, 250, 150)) background_pen.setWidth(1) background_pen.setCapStyle(Qt.RoundCap) main_widget = QGraphicsWidget() layout = QGraphicsGridLayout() attributes = self.data.domain.attributes if self.data is not None: for (group, indices), dist_vec in zip(self.groups, self.distances): indices_set = set(indices) rug_items = [] if dist_vec is not None: for i, attr in enumerate(attributes): # Is this a within group distance or background in_group = i in indices_set if in_group: rug_item = ClickableRugItem(dist_vec[i] / max_dist, 1.0, self.on_rug_item_clicked) rug_item.setPen(group_pen) tooltip = experiment_description(attr) rug_item.setToolTip(tooltip) rug_item.group_index = indices.index(i) rug_item.setZValue(rug_item.zValue() + 1) else: rug_item = ClickableRugItem(dist_vec[i] / max_dist, 0.85, self.on_rug_item_clicked) rug_item.setPen(background_pen) tooltip = experiment_description(attr) rug_item.setToolTip(tooltip) rug_item.group = group rug_item.index = i rug_item.in_group = in_group rug_items.append(rug_item) rug_widget = RugGraphicsWidget(parent=main_widget) rug_widget.set_rug(rug_items) rug_widgets.append(rug_widget) label = group_label(self.selected_split_by_labels(), group) label_item = QGraphicsSimpleTextItem(label, main_widget) label_item = GraphicsSimpleTextLayoutItem(label_item, parent=layout) label_item.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed) labels.append(label_item) for i, (label, rug_w) in enumerate(zip(labels, rug_widgets)): layout.addItem(label, i, 0, Qt.AlignVCenter) layout.addItem(rug_w, i, 1) layout.setRowMaximumHeight(i, 30) main_widget.setLayout(layout) self.scene.addItem(main_widget) self.main_widget = main_widget self.rug_widgets = rug_widgets self.labels = labels self.on_view_resize(self.scene_view.size())
def __updateState(self): """ Update the widget with the new source/sink node signal descriptions. """ widget = QGraphicsWidget() widget.setLayout(QGraphicsGridLayout()) # Space between left and right anchors widget.layout().setHorizontalSpacing(50) left_node = EditLinksNode(self, direction=Qt.LeftToRight, node=self.source) left_node.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding) right_node = EditLinksNode(self, direction=Qt.RightToLeft, node=self.sink) right_node.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding) left_node.setMinimumWidth(150) right_node.setMinimumWidth(150) widget.layout().addItem(left_node, 0, 0,) widget.layout().addItem(right_node, 0, 1,) title_template = "<center><b>{0}<b></center>" left_title = GraphicsTextWidget(self) left_title.setHtml(title_template.format(escape(self.source.title))) left_title.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed) right_title = GraphicsTextWidget(self) right_title.setHtml(title_template.format(escape(self.sink.title))) right_title.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed) widget.layout().addItem(left_title, 1, 0, alignment=Qt.AlignHCenter | Qt.AlignTop) widget.layout().addItem(right_title, 1, 1, alignment=Qt.AlignHCenter | Qt.AlignTop) widget.setParentItem(self) max_w = max(left_node.sizeHint(Qt.PreferredSize).width(), right_node.sizeHint(Qt.PreferredSize).width()) # fix same size left_node.setMinimumWidth(max_w) right_node.setMinimumWidth(max_w) left_title.setMinimumWidth(max_w) right_title.setMinimumWidth(max_w) self.layout().addItem(widget) self.layout().activate() self.sourceNodeWidget = left_node self.sinkNodeWidget = right_node self.sourceNodeTitle = left_title self.sinkNodeTitle = right_title self.__resetAnchorStates() # AnchorHover hover over anchor before hovering over line class AnchorHover(QGraphicsRectItem): def __init__(self, anchor, parent=None): super().__init__(parent=parent) self.setAcceptHoverEvents(True) self.anchor = anchor self.setRect(anchor.boundingRect()) self.setPos(self.mapFromScene(anchor.scenePos())) self.setFlag(QGraphicsItem.ItemHasNoContents, True) def hoverEnterEvent(self, event): if self.anchor.isEnabled(): self.anchor.hoverEnterEvent(event) else: event.ignore() def hoverLeaveEvent(self, event): if self.anchor.isEnabled(): self.anchor.hoverLeaveEvent(event) else: event.ignore() for anchor in left_node.channelAnchors + right_node.channelAnchors: anchor_hover = AnchorHover(anchor, parent=self) anchor_hover.setZValue(2.0)
def widget(): w = QGraphicsWidget() w.setMinimumSize(QSizeF(10, 10)) w.setMaximumSize(QSizeF(10, 10)) return w
def __init__(self): super().__init__() self.matrix = None self.items = None self.linkmatrix = None self.root = None self._displayed_root = None self.cutoff_height = 0.0 gui.comboBox(self.controlArea, self, "linkage", items=LINKAGE, box="Linkage", callback=self._invalidate_clustering) model = itemmodels.VariableListModel() model[:] = self.basic_annotations box = gui.widgetBox(self.controlArea, "Annotations") self.label_cb = cb = combobox.ComboBoxSearch( minimumContentsLength=14, sizeAdjustPolicy=QComboBox.AdjustToMinimumContentsLengthWithIcon) cb.setModel(model) cb.setCurrentIndex(cb.findData(self.annotation, Qt.EditRole)) def on_annotation_activated(): self.annotation = cb.currentData(Qt.EditRole) self._update_labels() cb.activated.connect(on_annotation_activated) def on_annotation_changed(value): cb.setCurrentIndex(cb.findData(value, Qt.EditRole)) self.connect_control("annotation", on_annotation_changed) box.layout().addWidget(self.label_cb) box = gui.radioButtons(self.controlArea, self, "pruning", box="Pruning", callback=self._invalidate_pruning) grid = QGridLayout() box.layout().addLayout(grid) grid.addWidget(gui.appendRadioButton(box, "None", addToLayout=False), 0, 0) self.max_depth_spin = gui.spin(box, self, "max_depth", minv=1, maxv=100, callback=self._invalidate_pruning, keyboardTracking=False, addToLayout=False) grid.addWidget( gui.appendRadioButton(box, "Max depth:", addToLayout=False), 1, 0) grid.addWidget(self.max_depth_spin, 1, 1) self.selection_box = gui.radioButtons( self.controlArea, self, "selection_method", box="Selection", callback=self._selection_method_changed) grid = QGridLayout() self.selection_box.layout().addLayout(grid) grid.addWidget( gui.appendRadioButton(self.selection_box, "Manual", addToLayout=False), 0, 0) grid.addWidget( gui.appendRadioButton(self.selection_box, "Height ratio:", addToLayout=False), 1, 0) self.cut_ratio_spin = gui.spin(self.selection_box, self, "cut_ratio", 0, 100, step=1e-1, spinType=float, callback=self._selection_method_changed, addToLayout=False) self.cut_ratio_spin.setSuffix("%") grid.addWidget(self.cut_ratio_spin, 1, 1) grid.addWidget( gui.appendRadioButton(self.selection_box, "Top N:", addToLayout=False), 2, 0) self.top_n_spin = gui.spin(self.selection_box, self, "top_n", 1, 20, callback=self._selection_method_changed, addToLayout=False) grid.addWidget(self.top_n_spin, 2, 1) self.zoom_slider = gui.hSlider(self.controlArea, self, "zoom_factor", box="Zoom", minValue=-6, maxValue=3, step=1, ticks=True, createLabel=False, callback=self.__update_font_scale) zoom_in = QAction("Zoom in", self, shortcut=QKeySequence.ZoomIn, triggered=self.__zoom_in) zoom_out = QAction("Zoom out", self, shortcut=QKeySequence.ZoomOut, triggered=self.__zoom_out) zoom_reset = QAction("Reset zoom", self, shortcut=QKeySequence(Qt.ControlModifier | Qt.Key_0), triggered=self.__zoom_reset) self.addActions([zoom_in, zoom_out, zoom_reset]) self.controlArea.layout().addStretch() gui.auto_send(self.buttonsArea, self, "autocommit") self.scene = QGraphicsScene(self) self.view = StickyGraphicsView( self.scene, horizontalScrollBarPolicy=Qt.ScrollBarAlwaysOff, verticalScrollBarPolicy=Qt.ScrollBarAlwaysOn, alignment=Qt.AlignLeft | Qt.AlignVCenter) self.mainArea.layout().setSpacing(1) self.mainArea.layout().addWidget(self.view) def axis_view(orientation): ax = AxisItem(orientation=orientation, maxTickLength=7) ax.mousePressed.connect(self._activate_cut_line) ax.mouseMoved.connect(self._activate_cut_line) ax.mouseReleased.connect(self._activate_cut_line) ax.setRange(1.0, 0.0) return ax self.top_axis = axis_view("top") self.bottom_axis = axis_view("bottom") self._main_graphics = QGraphicsWidget() scenelayout = QGraphicsGridLayout() scenelayout.setHorizontalSpacing(10) scenelayout.setVerticalSpacing(10) self._main_graphics.setLayout(scenelayout) self.scene.addItem(self._main_graphics) self.dendrogram = DendrogramWidget() self.dendrogram.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding) self.dendrogram.selectionChanged.connect(self._invalidate_output) self.dendrogram.selectionEdited.connect(self._selection_edited) self.labels = TextListWidget() self.labels.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Preferred) self.labels.setAlignment(Qt.AlignLeft) self.labels.setMaximumWidth(200) scenelayout.addItem(self.top_axis, 0, 0, alignment=Qt.AlignLeft | Qt.AlignVCenter) scenelayout.addItem(self.dendrogram, 1, 0, alignment=Qt.AlignLeft | Qt.AlignVCenter) scenelayout.addItem(self.labels, 1, 1, alignment=Qt.AlignLeft | Qt.AlignVCenter) scenelayout.addItem(self.bottom_axis, 2, 0, alignment=Qt.AlignLeft | Qt.AlignVCenter) self.view.viewport().installEventFilter(self) self._main_graphics.installEventFilter(self) self.top_axis.setZValue(self.dendrogram.zValue() + 10) self.bottom_axis.setZValue(self.dendrogram.zValue() + 10) self.cut_line = SliderLine(self.top_axis, orientation=Qt.Horizontal) self.cut_line.valueChanged.connect(self._dendrogram_slider_changed) self.dendrogram.geometryChanged.connect(self._dendrogram_geom_changed) self._set_cut_line_visible(self.selection_method == 1) self.__update_font_scale()
def __updateState(self): """ Update the widget with the new source/sink node signal descriptions. """ widget = QGraphicsWidget() widget.setLayout(QGraphicsGridLayout()) # Space between left and right anchors widget.layout().setHorizontalSpacing(50) left_node = EditLinksNode(self, direction=Qt.LeftToRight, node=self.source) left_node.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding) right_node = EditLinksNode(self, direction=Qt.RightToLeft, node=self.sink) right_node.setSizePolicy(QSizePolicy.MinimumExpanding, QSizePolicy.MinimumExpanding) left_node.setMinimumWidth(150) right_node.setMinimumWidth(150) widget.layout().addItem( left_node, 0, 0, ) widget.layout().addItem( right_node, 0, 1, ) title_template = "<center><b>{0}<b></center>" left_title = GraphicsTextWidget(self) left_title.setHtml(title_template.format(escape(self.source.title))) left_title.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed) right_title = GraphicsTextWidget(self) right_title.setHtml(title_template.format(escape(self.sink.title))) right_title.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed) widget.layout().addItem(left_title, 1, 0, alignment=Qt.AlignHCenter | Qt.AlignTop) widget.layout().addItem(right_title, 1, 1, alignment=Qt.AlignHCenter | Qt.AlignTop) widget.setParentItem(self) max_w = max( left_node.sizeHint(Qt.PreferredSize).width(), right_node.sizeHint(Qt.PreferredSize).width()) # fix same size left_node.setMinimumWidth(max_w) right_node.setMinimumWidth(max_w) left_title.setMinimumWidth(max_w) right_title.setMinimumWidth(max_w) self.layout().addItem(widget) self.layout().activate() self.sourceNodeWidget = left_node self.sinkNodeWidget = right_node self.sourceNodeTitle = left_title self.sinkNodeTitle = right_title