Example #1
0
    def __init__(self, parent=None):
        super(MyWidget, self).__init__(parent)

        self.view = View()
        self.grid = DateTimeGrid()
        self.model = QStandardItemModel()
        self.slider = QSlider()
        self.view.setGraphicsView(MyGraphicsView())

        ## proxyModel.setSourceModel( &model );
        for h in range(0, 2):
            self.model.appendRow([
                MyStandardItem("Item " + str(h)),
                MyStandardItem(KDGantt.TypeTask),
                MyStandardItem(QDateTime.currentDateTime().addDays(h),
                               KDGantt.StartTimeRole),
                MyStandardItem(QDateTime.currentDateTime().addDays(h + 1),
                               KDGantt.EndTimeRole),
                MyStandardItem(50)
            ])

        self.slider.setOrientation(Qt.Horizontal)
        self.slider.setRange(1, 10000)
        self.slider.setValue(100)
        l = QVBoxLayout(self)
        l.addWidget(self.view)
        l.addWidget(self.slider)
        self.grid.setStartDateTime(QDateTime.currentDateTime().addDays(-3))
        self.grid.setDayWidth(100)
        ## grid.setNoInformationBrush( Qt::NoBrush );
        self.view.setGrid(self.grid)
        self.view.setModel(self.model)

        self.slider.valueChanged.connect(self.slotZoom)
Example #2
0
File: main.py Project: KDAB/KDChart
    def __init__(self):
        super(MyWidget, self).__init__(None)

        self.view = View()
        self.grid = DateTimeGrid()
        self.slider = QSlider()
        self.model = QStandardItemModel()
        self.cmodel = ConstraintModel()

        for h in range(0, 19):
            topitem = MyStandardItem("Top Item " + str(h))
            for i in range(0, 19):
                item = MyStandardItem("Multi Item " + str(i))
                for j in range(0, 29, 3):
                    item.appendRow([
                        MyStandardItem("Item " + str(j)),
                        MyStandardItem(KDGantt.TypeTask),
                        MyStandardItem(QDateTime.currentDateTime().addDays(j),
                                       KDGantt.StartTimeRole),
                        MyStandardItem(
                            QDateTime.currentDateTime().addDays(j + 1 + i / 7),
                            KDGantt.EndTimeRole),
                        MyStandardItem(50)
                    ])

                item.appendRow([
                    MyStandardItem("Event"),
                    MyStandardItem(KDGantt.TypeEvent),
                    MyStandardItem(QDateTime.currentDateTime(),
                                   KDGantt.StartTimeRole),
                    MyStandardItem(QDateTime(), KDGantt.EndTimeRole),
                    MyStandardItem("")
                ])

                topitem.appendRow([
                    item,
                    MyStandardItem(KDGantt.TypeMulti),
                    MyStandardItem(""),
                    MyStandardItem(""),
                    MyStandardItem("")
                ])

            self.model.appendRow([
                topitem,
                MyStandardItem(KDGantt.TypeMulti),
                MyStandardItem(""),
                MyStandardItem(""),
                MyStandardItem("")
            ])

        self.model.appendRow([MyStandardItem("No data")])

        ##cmodel.addConstraint( KDGantt::Constraint( proxyModel.index( 0, 3 ), proxyModel.index( 10, 3 ) ) );
        ##cmodel.addConstraint( KDGantt::Constraint( proxyModel.index( 10, 3 ), proxyModel.index( 5, 3 ) ) );
        pidx = self.model.index(0, 0)
        pidx = self.model.index(0, 0, pidx)
        self.cmodel.addConstraint(
            Constraint(self.model.index(0, 0, pidx),
                       self.model.index(1, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(0, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(10, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(3, 0, pidx),
                       self.model.index(5, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(7, 0, pidx),
                       self.model.index(4, 0, pidx)))

        self.slider.setOrientation(Qt.Horizontal)
        self.slider.setRange(1, 10000)
        self.slider.setValue(100)
        l = QVBoxLayout(self)
        l.addWidget(self.view)
        l.addWidget(self.slider)
        self.grid.setStartDateTime(QDateTime.currentDateTime().addDays(-3))
        self.grid.setDayWidth(100)
        ##grid.setNoInformationBrush( Qt::NoBrush );
        self.view.setGrid(self.grid)
        self.view.setModel(self.model)
        ##view.setConstraintModel( &cmodel );
        self.slider.valueChanged.connect(self.slotZoom)

        pb1 = QPushButton("Print Preview...", self)
        pb2 = QPushButton("Print...", self)

        l.addWidget(pb1)
        l.addWidget(pb2)

        pb1.clicked.connect(self.slotPrintPreview)
        pb2.clicked.connect(self.slotPrint)

        gv = self.view.graphicsView()
        gv.setHeaderContextMenuPolicy(Qt.CustomContextMenu)
        gv.headerContextMenuRequested.connect(self.slotHeaderMenu)
Example #3
0
File: main.py Project: KDAB/KDChart
class MyWidget(QWidget):
    def __init__(self):
        super(MyWidget, self).__init__(None)

        self.view = View()
        self.grid = DateTimeGrid()
        self.slider = QSlider()
        self.model = QStandardItemModel()
        self.cmodel = ConstraintModel()

        for h in range(0, 19):
            topitem = MyStandardItem("Top Item " + str(h))
            for i in range(0, 19):
                item = MyStandardItem("Multi Item " + str(i))
                for j in range(0, 29, 3):
                    item.appendRow([
                        MyStandardItem("Item " + str(j)),
                        MyStandardItem(KDGantt.TypeTask),
                        MyStandardItem(QDateTime.currentDateTime().addDays(j),
                                       KDGantt.StartTimeRole),
                        MyStandardItem(
                            QDateTime.currentDateTime().addDays(j + 1 + i / 7),
                            KDGantt.EndTimeRole),
                        MyStandardItem(50)
                    ])

                item.appendRow([
                    MyStandardItem("Event"),
                    MyStandardItem(KDGantt.TypeEvent),
                    MyStandardItem(QDateTime.currentDateTime(),
                                   KDGantt.StartTimeRole),
                    MyStandardItem(QDateTime(), KDGantt.EndTimeRole),
                    MyStandardItem("")
                ])

                topitem.appendRow([
                    item,
                    MyStandardItem(KDGantt.TypeMulti),
                    MyStandardItem(""),
                    MyStandardItem(""),
                    MyStandardItem("")
                ])

            self.model.appendRow([
                topitem,
                MyStandardItem(KDGantt.TypeMulti),
                MyStandardItem(""),
                MyStandardItem(""),
                MyStandardItem("")
            ])

        self.model.appendRow([MyStandardItem("No data")])

        ##cmodel.addConstraint( KDGantt::Constraint( proxyModel.index( 0, 3 ), proxyModel.index( 10, 3 ) ) );
        ##cmodel.addConstraint( KDGantt::Constraint( proxyModel.index( 10, 3 ), proxyModel.index( 5, 3 ) ) );
        pidx = self.model.index(0, 0)
        pidx = self.model.index(0, 0, pidx)
        self.cmodel.addConstraint(
            Constraint(self.model.index(0, 0, pidx),
                       self.model.index(1, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(0, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(10, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(3, 0, pidx),
                       self.model.index(5, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(7, 0, pidx),
                       self.model.index(4, 0, pidx)))

        self.slider.setOrientation(Qt.Horizontal)
        self.slider.setRange(1, 10000)
        self.slider.setValue(100)
        l = QVBoxLayout(self)
        l.addWidget(self.view)
        l.addWidget(self.slider)
        self.grid.setStartDateTime(QDateTime.currentDateTime().addDays(-3))
        self.grid.setDayWidth(100)
        ##grid.setNoInformationBrush( Qt::NoBrush );
        self.view.setGrid(self.grid)
        self.view.setModel(self.model)
        ##view.setConstraintModel( &cmodel );
        self.slider.valueChanged.connect(self.slotZoom)

        pb1 = QPushButton("Print Preview...", self)
        pb2 = QPushButton("Print...", self)

        l.addWidget(pb1)
        l.addWidget(pb2)

        pb1.clicked.connect(self.slotPrintPreview)
        pb2.clicked.connect(self.slotPrint)

        gv = self.view.graphicsView()
        gv.setHeaderContextMenuPolicy(Qt.CustomContextMenu)
        gv.headerContextMenuRequested.connect(self.slotHeaderMenu)

    def slotZoom(self, z):
        self.grid.setDayWidth(z)

    def slotPrintPreview(self):
        pix = QPixmap(1000, 200)
        pix.fill(Qt.white)

        painter = QPainter(pix)
        view.print(painter, pix.rect())
        painter.end()

        label = QLabel(this)
        label.setPixmap(pix)
        label.show()

    def slotPrint(self):
        printer = QPrinter(QPrinter.HighResolution)
        pd = QPrintDialog(printer, self)

        if pd.exec_() == QDialog.Accepted:
            r = self.view.graphicsView().mapToScene(
                self.view.graphicsView().viewport().rect()).boundingRect()
            self.view.print(printer, r.left(), r.right())

    def slotHeaderMenu(self, pt):
        menu = QMenu()
        menu.addAction("This")
        menu.addAction("is")
        menu.addAction("just")
        menu.addAction("a")
        menu.addAction("test")
        menu.exec_(pt)
Example #4
0
class MainWindow(QMainWindow):
    def __init__(self, parent=None, flags=Qt.WindowFlags()):
        super(MainWindow, self).__init__(parent, flags)

        self.dayWidth = 70
        self.ui = Ui_MainWindow()
        self.ui.setupUi(self)

        self.initModel()
        self.initActions()
        self.initItemDelegate()
        self.initGrid()

        leftView = self.ui.ganttView.leftView()
        leftView.setColumnHidden(1, True)
        leftView.setColumnHidden(2, True)
        leftView.setColumnHidden(3, True)
        leftView.setColumnHidden(4, True)
        leftView.setColumnHidden(5, True)
        leftView.header().setStretchLastSection(True)

        self.ui.ganttView.leftView().customContextMenuRequested.connect(
            self.showContextMenu)
        self.ui.ganttView.selectionModel().selectionChanged.connect(
            self.enableActions)
        self.ui.ganttView.graphicsView().clicked.connect(self.slotClicked)
        self.ui.ganttView.graphicsView().qrealClicked.connect(
            self.slotDoubleClicked)

    def initModel(self):
        self.model = QStandardItemModel(0, 6, self)
        self.model.setHeaderData(0, Qt.Horizontal, "Task")
        self.ui.ganttView.setModel(self.model)

        self.l = QWidget(self)
        self.l.setWindowTitle("Legend")
        self.l.show()
        ##self.l.setModel(self.model)

        self.constraintModel = ConstraintModel(self)
        self.ui.ganttView.setConstraintModel(self.constraintModel)

    def initActions(self):
        self.newEntryAction = QAction("New entry", self)
        self.newEntryAction.setShortcut(QKeySequence.New)
        self.newEntryAction.triggered.connect(self.addNewEntry)

        self.removeEntryAction = QAction("Remove entry", self)
        self.removeEntryAction.setShortcut(QKeySequence.Delete)
        self.removeEntryAction.triggered.connect(self.removeEntry)

        self.demoAction = QAction("Demo entry", self)
        self.demoAction.triggered.connect(self.addDemoEntry)

        self.printAction = QAction("Print Preview...", self)
        self.printAction.triggered.connect(self.printPreview)

        self.zoomInAction = QAction("Zoom In", self)
        self.zoomInAction.setShortcut(QKeySequence.ZoomIn)
        self.zoomInAction.triggered.connect(self.zoomIn)

        self.zoomOutAction = QAction("Zoom Out", self)
        self.zoomOutAction.setShortcut(QKeySequence.ZoomOut)
        self.zoomOutAction.triggered.connect(self.zoomOut)

        self.ui.ganttView.leftView().setContextMenuPolicy(Qt.CustomContextMenu)
        self.ui.ganttView.leftView().addAction(self.newEntryAction)
        self.ui.ganttView.leftView().addAction(self.removeEntryAction)

        menuBar = QMenuBar(self)
        self.setMenuBar(menuBar)
        entryMenu = menuBar.addMenu("Entry")
        entryMenu.addAction(self.newEntryAction)
        entryMenu.addAction(self.removeEntryAction)
        entryMenu.addSeparator()
        entryMenu.addAction(self.demoAction)
        entryMenu.addSeparator()
        entryMenu.addAction(self.printAction)

        zoomMenu = menuBar.addMenu("Zoom")
        zoomMenu.addAction(self.zoomInAction)
        zoomMenu.addAction(self.zoomOutAction)

        ##self.enableActions(QItemSelection())

    def initItemDelegate(self):
        delegate = EntryDelegate(self.constraintModel, self)
        self.ui.ganttView.leftView().setItemDelegate(delegate)

    def initGrid(self):
        self.grid = DateTimeGrid()
        self.grid.setDayWidth(self.dayWidth)
        self.ui.ganttView.setGrid(self.grid)

    def showContextMenu(self, pos):
        if not self.ui.ganttView.leftView().indexAt(pos).isValid():
            self.ui.ganttView.selectionModel().clearSelection()

        menu = QMenu(self.ui.ganttView.leftView())
        menu.addAction(self.newEntryAction)
        menu.addAction(self.removeEntryAction)
        menu.exec_(self.ui.ganttView.leftView().viewport().mapToGlobal(pos))

    def enableActions(self, selected):
        if len(selected.indexes()) == 0:
            self.newEntryAction.setEnabled(True)
            self.removeEntryAction.setEnabled(False)
            return

        selectedIndex = selected.indexes()[0]
        dataType = self.model.data(self.model.index(selectedIndex.row(), 1))
        if dataType in [KDGantt.TypeEvent, KDGantt.TypeTask]:
            self.newEntryAction.setEnabled(False)
            self.removeEntryAction.setEnabled(True)
            return

        self.newEntryAction.setEnabled(True)
        self.removeEntryAction.setEnabled(True)

    def addNewEntry(self):
        dialog = EntryDialog(self.model)
        dialog.setWindowTitle("New Entry")
        if dialog.exec_() == QDialog.Rejected:
            dialog = None
            return

        selectedIndexes = self.ui.ganttView.selectionModel().selectedIndexes()
        if len(selectedIndexes) > 0:
            parent = selectedIndexes[0]
        else:
            parent = QModelIndex()

        if not self.model.insertRow(self.model.rowCount(parent), parent):
            return

        row = self.model.rowCount(parent) - 1
        if row == 0 and parent.isValid():
            self.model.insertColumns(self.model.columnCount(paren), 5, parent)

        self.model.setData(self.model.index(row, 0, parent), dialog.name())
        self.model.setData(self.model.index(row, 1, parent), dialog.type())
        if dialog.type() != KDGantt.TypeSummary:
            self.model.setData(self.model.index(row, 2, parent),
                               dialog.startDate(), KDGantt.StartTimeRole)
            self.model.setData(self.model.index(row, 3, parent),
                               dialog.endDate(), KDGantt.EndTimeRole)

        self.model.setData(self.model.index(row, 4, parent),
                           dialog.completion())
        self.model.setData(self.model.index(row, 5, parent), dialog.legend())

        self.addConstraint(dialog.depends(), self.model.index(row, 0, parent))
        self.setReadOnly(self.model.index(row, 0, parent), dialog.readOnly())

        dialog = None

    def setReadOnly(self, index, readOnly):
        row = index.row()
        parent = index.parent()

        for column in range(0, 5):
            item = self.model.itemFromIndex(
                self.model.index(row, column, parent))
            flags = None
            if readOnly:
                flags = item.flags() & ~Qt.ItemIsEditable
            else:
                flags = item.flags() | Qt.ItemIsEditable
            item.setFlags(flags)

    def addConstraint(self, index1, index2):
        if not index1.isValid() or not index2.isValid():
            return

        c = Constraint(index1, index2)
        self.ui.ganttView.constraintModel().addConstraint(c)

    def addConstraintFromItem(self, item1, item2):
        self.addConstraint(self.model.indexFromItem(item1),
                           self.model.indexFromItem(item2))

    def removeEntry(self):
        selectedIndexes = self.ui.ganttView.selectionModel().selectedIndexes()
        if len(selectedIndexes) > 0:
            index = selectedIndexes[0]
        else:
            index = QModelIndex()

        if not index.isValid():
            return

        self.model.removeRow(index.row(), index.parent())

    def addDemoEntry(self):
        softwareRelease = MyStandardItem("Software Release")
        codeFreeze = MyStandardItem("Code Freeze")
        codeFreeze.setData(KDGantt.TextPositionRole,
                           StyleOptionGanttItem.Right)
        packaging = MyStandardItem("Packaging")
        upload = MyStandardItem("Upload")
        testing = MyStandardItem("Testing")
        updateDocumentation = MyStandardItem("Update Documentation")

        now = QDateTime.currentDateTime()
        softwareRelease.appendRow([
            codeFreeze,
            MyStandardItem(KDGantt.TypeEvent),
            MyStandardItem(now, KDGantt.StartTimeRole)
        ])
        softwareRelease.appendRow([
            packaging,
            MyStandardItem(KDGantt.TypeTask),
            MyStandardItem(now.addDays(5), KDGantt.StartTimeRole),
            MyStandardItem(now.addDays(10), KDGantt.EndTimeRole)
        ])
        softwareRelease.appendRow([
            upload,
            MyStandardItem(KDGantt.TypeTask),
            MyStandardItem(
                now.addDays(10).addSecs(2 * 60 * 60), KDGantt.StartTimeRole),
            MyStandardItem(now.addDays(11), KDGantt.EndTimeRole)
        ])
        softwareRelease.appendRow([
            testing,
            MyStandardItem(KDGantt.TypeTask),
            MyStandardItem(now.addSecs(3 * 60 * 60), KDGantt.StartTimeRole),
            MyStandardItem(now.addDays(5), KDGantt.EndTimeRole)
        ])
        softwareRelease.appendRow([
            updateDocumentation,
            MyStandardItem(KDGantt.TypeTask),
            MyStandardItem(now.addSecs(3 * 60 * 60), KDGantt.StartTimeRole),
            MyStandardItem(now.addDays(3), KDGantt.EndTimeRole)
        ])
        self.model.appendRow(
            [softwareRelease,
             MyStandardItem(KDGantt.TypeSummary)])
        self.addConstraintFromItem(codeFreeze, packaging)
        self.addConstraintFromItem(codeFreeze, testing)
        self.addConstraintFromItem(codeFreeze, updateDocumentation)
        self.addConstraintFromItem(packaging, upload)
        self.addConstraintFromItem(testing, packaging)
        self.addConstraintFromItem(updateDocumentation, packaging)

    def zoomIn(self):
        self.dayWidth += 10
        if self.dayWidth > 400:
            self.grid.setScale(DateTimeGrid.ScaleHour)
        self.grid.setDayWidth(self.dayWidth)

    def zoomOut(self):
        self.dayWidth -= 10

        if self.dayWidth < 10:
            self.dayWidth = 10

        if self.dayWidth <= 400:
            self.grid.setScale(DateTimeGrid.ScaleDay)

        self.grid.setDayWidth(self.dayWidth)

    def printPreview(self):
        preview = QLabel(self, Qt.Window)
        preview.setAttribute(Qt.WA_DeleteOnClose)
        preview.setScaledContents(True)
        preview.setWindowTitle("Print Preview")
        pix = QPixmap(1000, 300)
        pix.fill(Qt.white)

        p = QPainter(pix)
        p.setRenderHints(QPainter.Antialiasing)
        self.ui.ganttView.print_(p, pix.rect())

        preview.setPixmap(pix)
        preview.show()

    def slotClicked(self, index):
        self.statusBar().showMessage(
            "(%d,%d,_,%s) clicked" %
            (index.row(), index.column(), index.model()))

    def slotDoubleClicked(self, index):
        self.statusBar().showMessage(
            "(%d,%d,_,%s) qreal clicked" %
            (index.row(), index.column(), index.model()))
Example #5
0
 def initGrid(self):
     self.grid = DateTimeGrid()
     self.grid.setDayWidth(self.dayWidth)
     self.ui.ganttView.setGrid(self.grid)
Example #6
0
    def sizeHint(self):
        s = super(MyHeaderView, self).sizeHint()
        s.setHeight(s.height() * 3)
        return s


if __name__ == '__main__':
    app = QApplication(sys.argv)

    model = QStandardItemModel(1, 1)
    model.setHeaderData(0, Qt.Horizontal, "Task")

    ## A view with some alternative header labels
    view1 = View()
    grid1 = DateTimeGrid()
    #grid1.setUserDefinedUpperScale(DateTimeScaleFormatter(DateTimeScaleFormatter.Year, "yyyy", "In the year %1.", Qt.AlignLeft))
    #grid1.setUserDefinedLowerScale(DateTimeScaleFormatter(DateTimeScaleFormatter.Month, "MMMM", "In the month %1.", Qt.AlignRight))
    grid1.setScale(DateTimeGrid.ScaleUserDefined)
    grid1.setDayWidth(6.0)
    view1.setGrid(grid1)
    view1.setModel(model)
    view1.show()

    ## A view with header and vertical grid lines for every 10 minutes
    view2 = View()
    tw = view2.leftView()
    h = MyHeaderView()
    tw.setHeader(h)
    grid2 = DateTimeGrid()
    grid2.setDayWidth(5000)
Example #7
0
    def __init__(self, parent=None):
        super(MyWidget, self).__init__(parent)

        self.view = View()
        self.grid = DateTimeGrid()
        self.slider = QSlider(self)
        self.model = QStandardItemModel(self)
        self.cmodel = ConstraintModel()

        ## proxyModel.setSourceModel( &model );
        for i in range(0, 10):
            item = MyStandardItem("Multi Item " + str(i))
            for j in range(0, 20, 3):
                item.appendRow([
                    MyStandardItem("Item " + str(j)),
                    MyStandardItem(KDGantt.TypeTask),
                    MyStandardItem(QDateTime.currentDateTime().addDays(j),
                                   KDGantt.StartTimeRole),
                    MyStandardItem(
                        QDateTime.currentDateTime().addDays(j + 1 + i / 7),
                        KDGantt.EndTimeRole),
                    MyStandardItem(50)
                ])

            item.appendRow([
                MyStandardItem("Event"),
                MyStandardItem(KDGantt.TypeEvent),
                MyStandardItem(QDateTime.currentDateTime(),
                               KDGantt.StartTimeRole),
                MyStandardItem(QDateTime(), KDGantt.EndTimeRole),
                MyStandardItem("")
            ])

            self.model.appendRow([
                item,
                MyStandardItem(KDGantt.TypeMulti),
                MyStandardItem(""),
                MyStandardItem(""),
                MyStandardItem("")
            ])

        pidx = self.model.index(0, 0)
        pidx = self.model.index(0, 0, pidx)
        self.cmodel.addConstraint(
            Constraint(self.model.index(0, 0, pidx),
                       self.model.index(1, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(0, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(1, 0, pidx),
                       self.model.index(10, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(3, 0, pidx),
                       self.model.index(5, 0, pidx)))
        self.cmodel.addConstraint(
            Constraint(self.model.index(7, 0, pidx),
                       self.model.index(4, 0, pidx)))

        self.slider.setOrientation(Qt.Horizontal)
        self.slider.setRange(1, 1000)
        self.slider.setValue(100)
        l = QVBoxLayout(self)
        l.addWidget(self.view)
        l.addWidget(self.slider)
        self.grid.setStartDateTime(QDateTime.currentDateTime().addDays(-3))
        self.grid.setDayWidth(100)
        self.grid.setFreeDays([Qt.Saturday, Qt.Sunday])
        self.grid.setFreeDaysBrush(QBrush(Qt.red))

        lv = MyListView(self)
        self.view.setLeftView(lv)
        self.view.setRowController(
            ListViewRowController(lv, self.view.ganttProxyModel()))
        self.view.setGrid(self.grid)
        self.view.setModel(self.model)
        ##view.setConstraintModel( &cmodel );
        self.slider.valueChanged.connect(self.slotZoom)