def __init__(self, dialog, param):
super(ExtentSelectionPanel, self).__init__(None)
self.setupUi(self)
self.dialog = dialog
self.param = param
self.crs = QgsProject.instance().crs()
if self.param.flags() & QgsProcessingParameterDefinition.FlagOptional:
if hasattr(self.leText, 'setPlaceholderText'):
self.leText.setPlaceholderText(
self.tr('[Leave blank to use min covering extent]'))
self.btnSelect.clicked.connect(self.selectExtent)
if iface is not None:
canvas = iface.mapCanvas()
self.prevMapTool = canvas.mapTool()
self.tool = RectangleMapTool(canvas)
self.tool.rectangleCreated.connect(self.updateExtent)
else:
self.prevMapTool = None
self.tool = None
if param.defaultValue() is not None:
context = createContext()
rect = QgsProcessingParameters.parameterAsExtent(
param, {param.name(): param.defaultValue()}, context)
crs = QgsProcessingParameters.parameterAsExtentCrs(
param, {param.name(): param.defaultValue()}, context)
if not rect.isNull():
try:
s = '{},{},{},{}'.format(rect.xMinimum(), rect.xMaximum(),
rect.yMinimum(), rect.yMaximum())
if crs.isValid():
s += ' [' + crs.authid() + ']'
self.crs = crs
self.leText.setText(s)
except:
pass
def __init__(self, dialog, alg, default):
super(ExtentSelectionPanel, self).__init__(None)
self.dialog = dialog
self.params = alg.parameters
self.horizontalLayout = QtGui.QHBoxLayout(self)
self.horizontalLayout.setSpacing(2)
self.horizontalLayout.setMargin(0)
self.text = QtGui.QLineEdit()
self.text.setSizePolicy(QtGui.QSizePolicy.Expanding,
QtGui.QSizePolicy.Expanding)
if self.canUseAutoExtent():
if hasattr(self.text, 'setPlaceholderText'):
self.text.setPlaceholderText(
self.tr('[Leave blank to use min covering extent]'))
self.horizontalLayout.addWidget(self.text)
self.pushButton = QtGui.QPushButton()
self.pushButton.setText('...')
self.pushButton.clicked.connect(self.buttonPushed)
self.horizontalLayout.addWidget(self.pushButton)
self.setLayout(self.horizontalLayout)
canvas = iface.mapCanvas()
self.prevMapTool = canvas.mapTool()
self.tool = RectangleMapTool(canvas)
self.connect(self.tool, SIGNAL('rectangleCreated()'), self.fillCoords)
