class GAppLayerW(QgsMapCanvas):
def __init__(self, layer, rawLayer, linkedCanvas, dock):
# Canvas params
QgsMapCanvas.__init__(self, dock)
self.setCanvasColor(Qt.white)
self.setWheelAction(QgsMapCanvas.WheelZoom, factor=0)
self._dock = dock
# Add buttons
buttonWidth = self.width() / 2.5
self._buttonUp = QToolButton(self)
self._buttonUp.setArrowType(Qt.UpArrow)
self._buttonUp.setMaximumWidth(buttonWidth)
self._buttonUp.setVisible(False)
self._buttonUp.connect(self._buttonUp, SIGNAL("clicked()"),
self.moveUp)
self._buttonHide = QPushButton("Hide")
self._buttonHide.setMaximumWidth(buttonWidth)
self._buttonHide.setVisible(False)
self._buttonHide.setFocusPolicy(Qt.NoFocus)
self._buttonHide.connect(self._buttonHide, SIGNAL("clicked()"),
self.toggleLayer)
self._buttonDown = QToolButton(self)
self._buttonDown.setArrowType(Qt.DownArrow)
self._buttonDown.setMaximumWidth(buttonWidth)
self._buttonDown.setVisible(False)
self._buttonDown.connect(self._buttonDown, SIGNAL("clicked()"),
self.moveDown)
self._layout = QVBoxLayout(self)
self._layout.setMargin(1)
self._layout.addWidget(self._buttonUp)
self._layout.addWidget(self._buttonHide)
self._layout.addWidget(self._buttonDown)
self._rawLayer = rawLayer
self._layer = layer
self.setLayerSet([layer])
self._linkedCanvas = linkedCanvas
self._extent = self._linkedCanvas.extent()
self.setExtent(self._extent)
self.setFocusPolicy(Qt.StrongFocus)
self._hidden = False
def toggleLayer(self):
if not self._hidden:
self._linkedCanvas.hideLayer(self._layer)
self._buttonHide.setText("Show")
self._hidden = True
else:
self._linkedCanvas.showLayer(self._layer)
self._buttonHide.setText("Hide")
self._hidden = False
def moveUp(self):
if not self._hidden:
self._linkedCanvas.moveLayerUp(self._layer)
self._dock.moveWidgetUp(self)
def moveDown(self):
if not self._hidden:
self._linkedCanvas.moveLayerDown(self._layer)
self._dock.moveWidgetDown(self)
def refreshExtent(self):
self._extent = self._linkedCanvas.extent()
self.zoomToFeatureExtent(self._extent)
def isCurrentLayer(self):
return self._linkedCanvas.currentLayer == self._rawLayer
def setAsCurrentLayer(self):
self._linkedCanvas.setCurrentLayer(self._rawLayer)
def focusInEvent(self, focusEvent):
self._buttonUp.setVisible(True)
self._buttonHide.setVisible(True)
self._buttonDown.setVisible(True)
# if not self.isCurrentLayer():
# self.setAsCurrentLayer()
QgsMapCanvas.focusInEvent(self, focusEvent)
def focusOutEvent(self, focusEvent):
if not self._buttonHide.hasFocus():
self._buttonUp.setVisible(False)
self._buttonHide.setVisible(False)
self._buttonDown.setVisible(False)
QgsMapCanvas.focusOutEvent(self, focusEvent)
def keyPressEvent(self, keyEvent):
if keyEvent.key() == Qt.Key_Down:
self.moveDown()
elif keyEvent.key() == Qt.Key_Up:
self.moveUp()
elif keyEvent.key() == Qt.Key_H:
self.toggleLayer()
def keyPressed(self, keyEvent):
pass
def keyReleased(self, QKeyEvent):
pass
def keyReleaseEvent(self, QKeyEvent):
pass
def _getCanvas(self):
return self._canvas
canvas = property(_getCanvas)
