def __init__(self, parent):
QtCore.QObject.__init__(self, parent)
self.positionSource = Location.QGeoPositionInfoSource.createDefaultSource(self)
if self.positionSource == None:
self.valid = False
return
self.positionSource.positionUpdated.connect(self.locationUpdated)
self.currentPosition = QGeoCoordinate()
self.positionSource.startUpdates()
self.coordinate = QGeoCoordinate()
self.compass = QCompass(self)
self.compass.readingChanged.connect(self.compassReadingChanged)
self.compass.setDataRate(10)
self.compass.start()
self.compassAzimuth = 0
self.gpsactive = False
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 setCoordsClicked(self):
lat = float(self.latitudeEdit.text())
lon = float(self.longitudeEdit.text())
self.mapWidget.setCenter(QGeoCoordinate(lat, lon))
class GPSCompass(QtCore.QObject):
'''GPSCompass gives distance and bearing to a gps position from the current gps position'''
def __init__(self, parent):
QtCore.QObject.__init__(self, parent)
self.positionSource = Location.QGeoPositionInfoSource.createDefaultSource(self)
if self.positionSource == None:
self.valid = False
return
self.positionSource.positionUpdated.connect(self.locationUpdated)
self.currentPosition = QGeoCoordinate()
self.positionSource.startUpdates()
self.coordinate = QGeoCoordinate()
self.compass = QCompass(self)
self.compass.readingChanged.connect(self.compassReadingChanged)
self.compass.setDataRate(10)
self.compass.start()
self.compassAzimuth = 0
self.gpsactive = False
location_changed = QtCore.Signal()
bearing_changed = QtCore.Signal()
destination_changed = QtCore.Signal()
gps_activated = QtCore.Signal()
def __del__(self):
self.compass.stop()
self.positionSource.stopUpdates()
@QtCore.Slot()
def compassReadingChanged(self):
reading = self.compass.reading()
if reading:
self.compassAzimuth = reading.azimuth()
self.bearing_changed.emit()
@QtCore.Slot(float, float)
def setDestination(self, lat, lon):
self.coordinate = QGeoCoordinate(lat, lon)
self.destination_changed.emit()
def locationUpdated(self, update):
self.currentPosition = update.coordinate()
if not self.gpsactive:
self.gpsactive = True
self.gps_activated.emit()
self.location_changed.emit()
self.bearing_changed.emit()
def _distance(self):
if not self.currentPosition.isValid() or not self.coordinate.isValid():
return 0
return self.currentPosition.distanceTo(self.coordinate)
def _bearing(self):
if not self.currentPosition.isValid() or not self.coordinate.isValid():
return 0
return ((360 - self.compassAzimuth) - (360 - self.currentPosition.azimuthTo(self.coordinate)))
def _destinationLatitude(self):
return self.coordinate.latitude()
def _destinationLongitude(self):
return self.coordinate.longitude()
def _latitude(self):
return self.currentPosition.latitude()
def _longitude(self):
return self.currentPosition.longitude()
def _gpsfix(self):
return self.gpsactive
distance = QtCore.Property(int, _distance, notify=location_changed)
bearing = QtCore.Property(int, _bearing, notify=bearing_changed)
latitude = QtCore.Property(float, _latitude, notify=location_changed)
longitude = QtCore.Property(float, _longitude, notify=location_changed)
dest_latitude = QtCore.Property(float, _destinationLatitude, notify=destination_changed)
dest_longitude = QtCore.Property(float, _destinationLongitude, notify=destination_changed)
gps = QtCore.Property(bool, _gpsfix, notify=gps_activated)
def setDestination(self, lat, lon):
self.coordinate = QGeoCoordinate(lat, lon)
self.destination_changed.emit()
