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_()