#!/usr/bin/env python

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import sys

from PyQt4.QtGui import QActionGroup, QApplication, QGraphicsScene, QGraphicsView, QMainWindow
from PyQt4.QtMobility.QtLocation import *

class MapWindow(QMainWindow):

    def __init__(self):

        QMainWindow.__init__(self)

        self.scene = QGraphicsScene()

        self.findServices()

        view = QGraphicsView()
        view.setScene(self.scene)
        self.setCentralWidget(view)

    def findServices(self):

        serviceMenu = self.menuBar().addMenu(self.tr("&Services"))

        self.services = {}
        self.actionGroup = QActionGroup(self)
        self.actionGroup.setExclusive(True)
        self.actionGroup.triggered.connect(self.selectService)

        for name in QGeoServiceProvider.availableServiceProviders():

            service = QGeoServiceProvider(name)
            self.services[name] = service
            action = serviceMenu.addAction(name)
            action.setCheckable(True)
            self.actionGroup.addAction(action)

        if not self.services:

            item = self.scene.addText(
                self.tr("Failed to find any map services. Please ensure that "
                        "the location services plugins for Qt Mobility have "
                        "been built and, if necessary, set the QT_PLUGIN_PATH "
                        "environment variable to the location of the Qt Mobility "
                        "plugins directory."))
            item.setTextWidth(300)
            action = serviceMenu.addAction(self.tr("No services"))
            action.setEnabled(False)
        else:
            self.actionGroup.actions()[0].trigger()

    def selectService(self, action):

        action.setChecked(True)
        name = action.text()

        self.scene.clear()

        service = self.services[name]
        if service.error() != service.NoError:

            item = self.scene.addText(
                self.tr('The "%1" service failed with the following error:\n'
                        "%2").arg(name).arg(service.errorString()))
            item.setTextWidth(300)

        else:
            self.manager = service.mappingManager()
            self.geoMap = QGraphicsGeoMap(self.manager)
            self.scene.addItem(self.geoMap)

            self.geoMap.resize(300, 300)
            self.geoMap.setCenter(QGeoCoordinate(37.76, -25.675))
            self.geoMap.setMapType(self.geoMap.TerrainMap)
            self.geoMap.setZoomLevel(12)


if __name__ == "__main__":

    app = QApplication(sys.argv)
    window = MapWindow()
    window.show()
    sys.exit(app.exec_())