class SnappingDock(DockWidget):
def __init__(self, iface, parent=None):
super(SnappingDock, self).__init__(parent)
self._iface = iface
self.setWindowTitle(u'Snapping Panel')
self.setObjectName(u'snappingDock')
self._listWidget = QListWidget(self)
self._listWidget.setSelectionMode(QAbstractItemView.NoSelection)
self._listWidget.setDropIndicatorShown(False)
self._dockLayout = QVBoxLayout(self)
self._dockLayout.setObjectName(u'dockLayout')
self._dockLayout.addWidget(self._listWidget)
self._dockContents = QWidget(self)
self._dockContents.setObjectName(u'dockContents')
self._dockContents.setLayout(self._dockLayout)
self.setWidget(self._dockContents)
# Keep up-to-date with layers added and removed
QgsMapLayerRegistry.instance().layersAdded.connect(self._layersAdded)
QgsMapLayerRegistry.instance().layersRemoved.connect(
self._layersRemoved)
def refresh(self):
self._listWidget.clear()
layers = QgsMapLayerRegistry.instance().mapLayers()
layerIds = layers.keys()
sorted(layerIds)
for layerId in layerIds:
self.addLayer(layers[layerId])
def addLayer(self, layer):
if (layer is None or not layer.isValid()
or layer.type() != QgsMapLayer.VectorLayer):
return
newItem = QListWidgetItem()
newItem.setData(Qt.UserRole, layer.id())
# newItem.setSizeHint(layerWidget.minimumSizeHint())
self._listWidget.addItem(newItem)
self._listWidget.setItemWidget(newItem,
LayerSnappingWidget(layer, self))
def removeLayer(self, layerId):
for idx in range(0, self._listWidget.count() - 1):
if self._listWidget.item(idx).data() == layerId:
self._listWidget.takeItem(idx)
return
def _layersAdded(self, layers):
for layer in layers:
self.addLayer(layer)
def _layersRemoved(self, layerIds):
for idx in range(self._listWidget.count() - 1, 0):
if self._listWidget.item(idx).data() in layerIds:
self._listWidget.takeItem(idx)
class SnappingDock(DockWidget):
def __init__(self, iface, parent=None):
super(SnappingDock, self).__init__(parent)
self._iface = iface
self.setWindowTitle(u'Snapping Panel')
self.setObjectName(u'snappingDock')
self._listWidget = QListWidget(self)
self._listWidget.setSelectionMode(QAbstractItemView.NoSelection)
self._listWidget.setDropIndicatorShown(False)
self._dockLayout = QVBoxLayout(self)
self._dockLayout.setObjectName(u'dockLayout')
self._dockLayout.addWidget(self._listWidget)
self._dockContents = QWidget(self)
self._dockContents.setObjectName(u'dockContents')
self._dockContents.setLayout(self._dockLayout)
self.setWidget(self._dockContents)
# Keep up-to-date with layers added and removed
QgsMapLayerRegistry.instance().layersAdded.connect(self._layersAdded)
QgsMapLayerRegistry.instance().layersRemoved.connect(self._layersRemoved)
def refresh(self):
self._listWidget.clear()
layers = QgsMapLayerRegistry.instance().mapLayers()
layerIds = layers.keys()
sorted(layerIds)
for layerId in layerIds:
self.addLayer(layers[layerId])
def addLayer(self, layer):
if (layer is None or not layer.isValid() or layer.type() != QgsMapLayer.VectorLayer):
return
newItem = QListWidgetItem()
newItem.setData(Qt.UserRole, layer.id())
# newItem.setSizeHint(layerWidget.minimumSizeHint())
self._listWidget.addItem(newItem)
self._listWidget.setItemWidget(newItem, LayerSnappingWidget(layer, self))
def removeLayer(self, layerId):
for idx in range(0, self._listWidget.count() - 1):
if self._listWidget.item(idx).data() == layerId:
self._listWidget.takeItem(idx)
return
def _layersAdded(self, layers):
for layer in layers:
self.addLayer(layer)
def _layersRemoved(self, layerIds):
for idx in range(self._listWidget.count() - 1, 0):
if self._listWidget.item(idx).data() in layerIds:
self._listWidget.takeItem(idx)
grade2 = QTreeWidgetItem(treeWidget, grade1)
grade2.setText(0, "Grade2")
treeWidget.show()
#********************* 3. QTableWidget ********************/
# 创建表格部件，同时指定行数和列数
tableWidget = QTableWidget(3, 2)
# 创建表格项目，并插入到指定单元
tableWidgetItem = QTableWidgetItem("qt")
tableWidget.setItem(1, 1, tableWidgetItem)
# 创建表格项目，并将它们作为标头
headerV = QTableWidgetItem("first")
tableWidget.setVerticalHeaderItem(0, headerV)
headerH = QTableWidgetItem("ID")
tableWidget.setHorizontalHeaderItem(0, headerH)
tableWidget.show()
#/************ 4. 为listWidget启用拖放 *************/
# 设置选择模式为单选
listWidget.setSelectionMode(QAbstractItemView.SingleSelection)
# 启用拖动
listWidget.setDragEnabled(True)
# 设置接受拖放
listWidget.viewport().setAcceptDrops(True)
# 设置显示将要被放置的位置
listWidget.setDropIndicatorShown(True)
# 设置拖放模式为移动项目，如果不设置，默认为复制项目
listWidget.setDragDropMode(QAbstractItemView.InternalMove)
app.exec_()
