예제 #1
0
    def setProvider(self, providerId):
        self.serviceProvider = QGeoServiceProvider(providerId)
        if self.serviceProvider.error() != QGeoServiceProvider.NoError:
            QMessageBox.information(self, self.tr('MapViewer Example'),
                                    self.tr('Unable to dinf the %s geoservices plugin.' % providerId))

            qApp.quit()
            return

        self.mapManager = self.serviceProvider.mappingManager()
        self.routingManager = self.serviceProvider.routingManager()
예제 #2
0
class MainWindow(QMainWindow):
    """docstring for MainWindow"""
    def __init__(self, parent=None):
        super(MainWindow, self).__init__(parent)
        self.serviceProvider = 0
        self.popupMenu = None
        self.mapControlButtons = []
        self.mapControlTypes = []
        self.markerObjects = []
        self.setWindowTitle(self.tr('Map Viewer Demo'))

        self.routingManager = None
        self.mapManager = None
        self.mapWidget = None
        self.markerIcon = None
        self.slider = None

        manager = QNetworkConfigurationManager()

        canStartIAP = manager.capabilities() & QNetworkConfigurationManager.CanStartAndStopInterfaces

        configuration = manager.defaultConfiguration()

        if not configuration.isValid or (not canStartIAP and configuration.starte() != QNetworkConfiguration.Active):
            QMessageBox.information(self, self.tr('Map Viewer Demo'),
                                    self.tr('Available Access Points not found.'))
            return

        self.session = QNetworkSession(configuration, self)
        self.session.opened.connect(self.networkSessionOpened)
        self.session.error.connect(self.error)

        self.session.open()
        self.session.waitForOpened()

        self.setProvider('nokia')
        self.setupUi()

    def networkSessionOpened(self):
        pass

    def sliderValueChanged(self, value):
        self.mapWidget.setZoomLevel(value)

    def mapZoomLevelChanged(self, level):
        self.slider.setSliderPosition(int(level))

    def mapTypeChanged(self, newType):
        index = self.mapControlTypes.index(newType)
        if index != -1:
            self.mapControButtons[index].setChecked(True)

    def mapTypeToggled(self, checked):
        if checked:
            button = self.sender()
            index = self.mapControlButtons.index(button)
            if index != -1:
                print index, self.mapControlTypes[index]
                self.mapWidget.setMapType(self.mapControlTypes[index])

    def updateCoords(self, coords):
        if not coords.isValid():
            return

        self.latitudeEdit.setText('%f' % coords.latitude())
        self.longitudeEdit.setText('%f' % coords.longitude())

    def setCoordsClicked(self):
        lat = float(self.latitudeEdit.text())
        lon = float(self.longitudeEdit.text())
        self.mapWidget.setCenter(QGeoCoordinate(lat, lon))

    def setProvider(self, providerId):
        self.serviceProvider = QGeoServiceProvider(providerId)
        if self.serviceProvider.error() != QGeoServiceProvider.NoError:
            QMessageBox.information(self, self.tr('MapViewer Example'),
                                    self.tr('Unable to dinf the %s geoservices plugin.' % providerId))

            qApp.quit()
            return

        self.mapManager = self.serviceProvider.mappingManager()
        self.routingManager = self.serviceProvider.routingManager()

    def error(self, error):
        if error == QNetworkSession.UnknownSessionError:
            msgBox = QMessageBox(self.parent())
            msgBox.setText('This application requires network access to function.')
            msgBox.setInformativeText('Press Cancel to quit the application.')
            msgBox.setStandardButtons(QMessageBox.Retry | QMessageBox.Cancel)
            msgBox.setIcon(QMessageBox.Information)
            msgBox.setDefaultButton(QMessageBox.Retry)
            ret = msgBox.exec_()
            if ret == QMessageBox.Retry:
                QTimer.singleShot(0, self.session.open)
            elif ret == QMessageBox.Cancel:
                self.close()
        elif error == QNetworkSession.SessionAbortedError:
            msgBox = QMessageBox(self.parent())
            msgBox.setText('Out of range of network')
            msgBox.setInformativeText('Move back into range and press Retry, or press Cancel to quit the application')
            msgBox.setStandardButtons(QMessageBox.Retry | QMessageBox.Cancel)
            msgBox.setIcon(QMessageBox.Information)
            msgBox.setDefaultButton(QMessageBox.Retry)
            ret = msgBox.exec_()
            if ret == QMessageBox.Retry:
                QTimer.singleShot(0, self.session.open)
            elif ret == QMessageBox.Cancel:
                self.close()


    def setupUi(self):

        scene = QGraphicsScene(self)
        self.view = QGraphicsView(scene, self)
        self.view.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.view.setVerticalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.view.setVisible(True)
        self.view.setInteractive(True)

        self.createPixmapIcon()

        self.mapWidget = MapWidget(self.mapManager)
        scene.addItem(self.mapWidget)
        self.mapWidget.setCenter(QGeoCoordinate(-8.1, -34.95))
        self.mapWidget.setZoomLevel(5)

        #...
        self.slider = QSlider(Qt.Vertical, self)
        self.slider.setTickInterval(1)
        self.slider.setTickPosition(QSlider.TicksBothSides)
        self.slider.setMaximum(self.mapManager.maximumZoomLevel())
        self.slider.setMinimum(self.mapManager.minimumZoomLevel())

        self.slider.valueChanged[int].connect(self.sliderValueChanged)
        self.mapWidget.zoomLevelChanged[float].connect(self.mapZoomLevelChanged)

        mapControlLayout = QVBoxLayout()

        self.mapWidget.mapTypeChanged.connect(self.mapTypeChanged)

        for mapType in self.mapWidget.supportedMapTypes():
            radio = QRadioButton(self)
            if mapType == QGraphicsGeoMap.StreetMap:
                radio.setText('Street')
            elif mapType == QGraphicsGeoMap.SatelliteMapDay:
                radio.setText('Sattelite')
            elif mapType == QGraphicsGeoMap.SatelliteMapNight:
                radio.setText('Sattelite - Night')
            elif mapType == QGraphicsGeoMap.TerrainMap:
                radio.setText('Terrain')

            if mapType == self.mapWidget.mapType():
                radio.setChecked(True)

            radio.toggled[bool].connect(self.mapTypeToggled)

            self.mapControlButtons.append(radio)
            self.mapControlTypes.append(mapType)
            mapControlLayout.addWidget(radio)

        self.latitudeEdit = QLineEdit()
        self.longitudeEdit = QLineEdit()

        formLayout = QFormLayout()
        formLayout.addRow('Latitude', self.latitudeEdit)
        formLayout.addRow('Longitude', self.longitudeEdit)

        self.captureCoordsButton = QToolButton()
        self.captureCoordsButton.setText('Capture coordinates')
        self.captureCoordsButton.setCheckable(True)

        self.captureCoordsButton.toggled[bool].connect(
                self.mapWidget.setMouseClickCoordQuery)
        self.mapWidget.coordQueryResult.connect(self.updateCoords)

        self.setCoordsButton = QPushButton()
        self.setCoordsButton.setText('Set coordinates')
        self.setCoordsButton.clicked.connect(self.setCoordsClicked)

        buttonLayout = QHBoxLayout()

        buttonLayout.addWidget(self.captureCoordsButton)
        buttonLayout.addWidget(self.setCoordsButton)

        coordControlLayout = QVBoxLayout()
        coordControlLayout.addLayout(formLayout)
        coordControlLayout.addLayout(buttonLayout)

        widget = QWidget(self)
        layout = QGridLayout()
        layout.setRowStretch(0, 1)
        layout.setRowStretch(1, 0)

        topLayout = QGridLayout()
        bottomLayout = QGridLayout()

        topLayout.setColumnStretch(0, 0)
        topLayout.setColumnStretch(1, 1)

        bottomLayout.setColumnStretch(0, 0)
        bottomLayout.setColumnStretch(1, 1)

        topLayout.addWidget(self.slider, 0, 0)
        topLayout.addWidget(self.view, 0, 1)

        bottomLayout.addLayout(mapControlLayout, 0, 0)
        bottomLayout.addLayout(coordControlLayout, 0, 1)

        layout.addLayout(topLayout, 0, 0)
        layout.addLayout(bottomLayout, 1, 0)

        self.layout = layout
        widget.setLayout(layout)
        self.setCentralWidget(widget)

        self.view.setContextMenuPolicy(Qt.CustomContextMenu)

        self.view.customContextMenuRequested.connect(self.customContextMenuRequest)

    def createPixmapIcon(self):
        self.markerIcon = QPixmap(MARKER_WIDTH, MARKER_HEIGHT)
        self.markerIcon.fill(Qt.transparent)

        painter = QPainter(self.markerIcon)

        p1 = QPoint(MARKER_WIDTH / 2, MARKER_HEIGHT - 1)
        p2 = QPoint(MARKER_WIDTH / 2, MARKER_HEIGHT - 1 - MARKER_PIN_LEN)
        pen = QPen(Qt.black)
        pen.setWidth(2)
        pen.setCosmetic(True)
        painter.setPen(pen)
        painter.drawLine(p1, p2)
        ellipse = QRect(0, 0, MARKER_WIDTH - 1, MARKER_HEIGHT - 1)
        pen.setWidth(1)
        painter.setPen(pen)
        color = QColor(Qt.green)
        color.setAlpha(127)
        brush = QBrush(color)
        painter.setBrush(brush)
        painter.drawEllipse(ellipse)

    def resizeEvent(self, event):
        self.view.setSceneRect(QRectF(QPointF(0.0, 0.0), self.view.size()))
        self.mapWidget.resize(self.view.size())

    def showEvent(self, event):
        self.view.setSceneRect(QRectF(QPointF(0.0, 0.0), self.view.size()))
        self.mapWidget.resize(self.view.size())

    def createMenus(self):
        self.popupMenu = QMenu(self)

        # Markers
        subMenuItem = QMenu(self.tr('Marker'), self)
        self.popupMenu.addMenu(subMenuItem)

        menuItem = QAction(self.tr('Set marker'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawPixmap)

        menuItem = QAction(self.tr('Remove marker'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.removePixmaps)

        menuItem = QAction(self.tr('Select objects'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.selectObjects)

        # Draw
        subMenuItem = QMenu(self.tr('Draw'), self)
        self.popupMenu.addMenu(subMenuItem)

        menuItem = QAction(self.tr('Rectangle'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawRect)

        menuItem = QAction(self.tr('Polyline'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawPolyline)

        menuItem = QAction(self.tr('Polygon'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawPolygon)

        menuItem = QAction(self.tr('Circle'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawCircle)

        menuItem = QAction(self.tr('Text'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.drawText)

        # Routing
        subMenuItem = QMenu(self.tr('Route'), self)
        self.popupMenu.addMenu(subMenuItem)

        menuItem = QAction(self.tr('Calculate route'), self)
        subMenuItem.addAction(menuItem)
        menuItem.triggered[bool].connect(self.calculateRoute)

    def selectObjects(self):
        for obj in self.mapWidget.mapObjects():
            obj.setSelected(False)

        if len(self.markerObjects) < 2:
            return

        bottomRight = self.markerObjects.pop()
        topLeft = self.markerObjects.pop()

        self.mapWidget.removeMapObject(topLeft)
        self.mapWidget.removeMapObject(bottomRight)

        selectedObjects = self.mapWidget.mapObjectsInScreenRect(
                    QRectF(self.mapWidget.coordinateToScreenPosition(topLeft.coordinate()),
                           self.mapWidget.coordinateToScreenPosition(bottomRight.coordinate()))
                )

        for obj in selectedObjects:
            obj.setSelected(True)

    def drawRect(self):
        if len(self.markerObjects) < 2:
            return

        p1, p2 = self.markerObjects[:2]

        pen = QPen(Qt.white)
        pen.setWidth(2)
        pen.setCosmetic(True)
        fill = QColor(Qt.black)
        fill.setAlpha(65)
        rectangle = QGeoMapRectangleObject(p1.coordinate(), p2.coordinate())
        rectangle.setPen(pen)
        rectangle.setBrush(QBrush(fill))
        self.mapWidget.addMapObject(rectangle)

    def drawPolyline(self):
        path = [mark.coordinate() for mark in self.markerObjects]

        pen = QPen(Qt.white)
        pen.setWidth(2)
        pen.setCosmetic(True)
        polyline = QGeoMapPolylineObject()
        polyline.setPen(pen)
        polyline.setPath(path)

        self.mapWidget.addMapObject(polyline)

    def drawPolygon(self):
        path = [mark.coordinate() for mark in self.markerObjects]

        pen = QPen(Qt.white)
        pen.setWidth(2)
        pen.setCosmetic(True)
        polygon = QGeoMapPolygonObject()
        polygon.setPen(pen)
        fill = QColor(Qt.black)
        fill.setAlpha(65)
        polygon.setBrush(QBrush(fill))
        polygon.setPath(path)

        self.mapWidget.addMapObject(polygon)

    def drawCircle(self):

        if not len(self.markerObjects):
            return

        p1 = self.markerObjects[0]
        center = p1.coordinate()

        radius = 3000 # Meters

        if len(self.markerObjects) >= 2:
            radius = center.distanceTo(self.markerObjects[1].coordinate())

        pen = QPen(Qt.white)
        pen.setWidth(2)
        pen.setCosmetic(True)
        circle = QGeoMapCircleObject(center, radius)
        circle.setPen(pen)
        fill = QColor(Qt.black)
        fill.setAlpha(65)
        circle.setBrush(QBrush(fill))

        self.mapWidget.addMapObject(circle)

    def drawText(self):

        if not len(self.markerObjects):
            return

        start = self.markerObjects[0].coordinate()

        text = QGeoMapTextObject(start, 'Text')

        fill = QColor(Qt.black)
        text.setBrush(fill)
        self.mapWidget.addMapObject(text)

    def calculateRoute(self):
        if len(self.markerObjects) < 2:
            return

        waypoints = [x.coordinate() for x in self.markerObjects[:2]]

        request = QGeoRouteRequest(waypoints)
        self.routeReply = self.routingManager.calculateRoute(request)
        self.routeReply.finished.connect(self.routeFinished)

    def routeFinished(self):

        if not self.routeReply.routes():
            return

        route = QGeoMapRouteObject(self.routeReply.routes()[0])
        routeColor = QColor(Qt.blue)
        routeColor.setAlpha(127)
        pen = QPen(routeColor)
        pen.setWidth(7)
        pen.setCosmetic(True)
        pen.setCapStyle(Qt.RoundCap)
        route.setPen(pen)
        self.mapWidget.addMapObject(route)

    def drawPixmap(self):
        marker = QGeoMapPixmapObject(self.mapWidget.screenPositionToCoordinate(self.lastClicked),
                                    QPoint(-(MARKER_WIDTH / 2), -MARKER_HEIGHT), self.markerIcon)
        self.mapWidget.addMapObject(marker)
        self.markerObjects.append(marker)

    def removePixmaps(self):
        for i in range(len(self.markerObjects)):
            marker = self.markerObjects.pop()

            self.mapWidget.removeMapObject(marker)
            marker.deleteLater()

    def customContextMenuRequest(self, point):
        self.lastClicked = point
        if self.focusWidget() == self.view:
            if not self.popupMenu:
                self.createMenus()

            self.popupMenu.popup(self.view.mapToGlobal(self.lastClicked))