64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
#include "ManualLabelToolWidget.h"
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#include <qdockwidget.h>
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#include <qgslayertreeview.h>
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#include <qgslayertreemodel.h>
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#include <qgslayertreemapcanvasbridge.h>
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ManualLabelToolWidget::ManualLabelToolWidget(QWidget *parent)
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: QMainWindow(parent)
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{
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this->init_UI();
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}
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ManualLabelToolWidget::~ManualLabelToolWidget()
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{
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}
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void ManualLabelToolWidget::init_UI()
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{
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// 1. inti map canvas
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this->map_canvas = new QgsMapCanvas();
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this->setCentralWidget((this->map_canvas));
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// 2. map tool pan
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this->map_tool_pan = new QgsMapToolPan(this->map_canvas);
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this->map_canvas->setMapTool(this->map_tool_pan);
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// 3. map layer manager
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this->map_layerTreeView =new QgsLayerTreeView(this);
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// 4. create map model
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this->map_layerModel = new QgsLayerTreeModel(QgsProject::instance()->layerTreeRoot(), this);
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this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeRename); // 允许重命名
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this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeReorder); // 允许调整顺序
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this->map_layerModel->setFlag(QgsLayerTreeModel::AllowNodeChangeVisibility); // 允许改变可见性
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this->map_layerModel->setFlag(QgsLayerTreeModel::ShowLegendAsTree); // 以树状图显示图例
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this->map_layerModel->setAutoCollapseLegendNodes(10); // 自动折叠过多图例项
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this->map_layerTreeView->setModel(this->map_layerModel);
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// create bridge between mapcontrol and layer
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this->map_layer_Bridge = new QgsLayerTreeMapCanvasBridge(QgsProject::instance()->layerTreeRoot(), this->map_canvas, this);
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// layer 布局
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// 1. 创建一个QDockWidget（停靠窗口）来承载图层树视图
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this->layerTreeDock =new QDockWidget(tr(u8"图层管理器"), this);
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this->layerTreeDock->setWidget(this->map_layerTreeView);
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// 2. 将已有的图层树视图(m_layerTreeView)设置为这个停靠窗口的中心部件
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layerTreeDock->setWidget(this->map_layerTreeView);
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// 3. (可选但推荐)设置停靠窗口允许停靠的区域
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layerTreeDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
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// 5. 将停靠窗口添加到主窗口的左侧区域
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this->addDockWidget(Qt::LeftDockWidgetArea, this->layerTreeDock);
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}
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