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77 lines
2.3 KiB
Plaintext
77 lines
2.3 KiB
Plaintext
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class QgsMapTool
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{
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%TypeHeaderCode
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#include <qgsmaptool.h>
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%End
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%ConvertToSubClassCode
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if (dynamic_cast<QgsMapToolZoom*>(sipCpp) != NULL)
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sipClass = sipClass_QgsMapToolZoom;
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else if (dynamic_cast<QgsMapToolPan*>(sipCpp) != NULL)
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sipClass = sipClass_QgsMapToolPan;
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else
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sipClass = NULL;
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%End
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public:
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//! virtual destructor
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virtual ~QgsMapTool();
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//! Mouse move event for overriding
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virtual void canvasMoveEvent(QMouseEvent * e);
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//! Mouse press event for overriding
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virtual void canvasPressEvent(QMouseEvent * e);
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//! Mouse release event for overriding
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virtual void canvasReleaseEvent(QMouseEvent * e);
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//! Called when rendering has finished
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virtual void renderComplete();
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/** Use this to associate a button, toolbutton, menu entry etc
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* that inherits qaction to this maptool. Then when the setMapTool
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* method of mapcanvas is called the action state will be set to on.
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* Usually this will cause e.g. a toolbutton to appear pressed in and
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* the previously used toolbutton to pop out. */
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void setAction(QAction* action);
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QAction* action();
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/** Check whether this MapTool performs a zoom or pan operation.
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* If it does, we will be able to perform the zoom and then
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* resume operations with the original / previously used tool.*/
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virtual bool isZoomTool();
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//! called when set as currently active map tool
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virtual void activate();
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//! called when map tool is being deactivated
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virtual void deactivate();
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protected:
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//! constructor takes map canvas as a parameter
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QgsMapTool(QgsMapCanvas* canvas);
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//! transformation from screen coordinates to map coordinates
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QgsPoint toMapCoords(const QPoint& point);
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//! transformation from screen coordinates to layer's coordinates
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QgsPoint toLayerCoords(QgsMapLayer* layer, const QPoint& point);
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//! trnasformation from map coordinates to layer's coordinates
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QgsPoint toLayerCoords(QgsMapLayer* layer, const QgsPoint& point);
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//! trnasformation of the rect from map coordinates to layer's coordinates
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QgsRect toLayerCoords(QgsMapLayer* layer, const QgsRect& rect);
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//! transformation from map coordinates to screen coordinates
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QPoint toCanvasCoords(const QgsPoint& point);
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};
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