| QGIS API Documentation
    2.2.0-Valmiera
    | 
A map tool for panning the map. More...
#include <qgsmaptooltouch.h>


| Public Member Functions | |
| QgsMapToolTouch (QgsMapCanvas *canvas) | |
| constructor | |
| ~QgsMapToolTouch () | |
| void | activate () | 
| called when set as currently active map tool | |
| void | deactivate () | 
| called when map tool is being deactivated | |
| virtual void | canvasMoveEvent (QMouseEvent *e) | 
| Overridden mouse move event. | |
| virtual void | canvasReleaseEvent (QMouseEvent *e) | 
| Overridden mouse release event. | |
| virtual void | canvasDoubleClickEvent (QMouseEvent *e) | 
| Overridden Mouse double click event. | |
| virtual bool | isTransient () | 
| Check whether this MapTool performs a zoom or pan operation. | |
| bool | gestureEvent (QGestureEvent *event) | 
|  Public Member Functions inherited from QgsMapTool | |
| virtual | ~QgsMapTool () | 
| virtual destructor | |
| virtual void | canvasPressEvent (QMouseEvent *e) | 
| Mouse press event for overriding. Default implementation does nothing. | |
| virtual void | wheelEvent (QWheelEvent *e) | 
| Mouse wheel event for overriding. | |
| virtual void | keyPressEvent (QKeyEvent *e) | 
| Key event for overriding. Default implementation does nothing. | |
| virtual void | keyReleaseEvent (QKeyEvent *e) | 
| Key event for overriding. | |
| virtual void | renderComplete () | 
| Called when rendering has finished. Default implementation does nothing. | |
| void | setAction (QAction *action) | 
| Use this to associate a QAction to this maptool. | |
| QAction * | action () | 
| Return associated action with map tool or NULL if no action is associated. | |
| void | setButton (QAbstractButton *button) | 
| Use this to associate a button to this maptool. | |
| QAbstractButton * | button () | 
| Return associated button with map tool or NULL if no button is associated. | |
| virtual void | setCursor (QCursor cursor) | 
| Set a user defined cursor. | |
| virtual bool | isEditTool () | 
| Check whether this MapTool performs an edit operation. | |
| QgsMapCanvas * | canvas () | 
| returns pointer to the tool's map canvas | |
| Private Member Functions | |
| void | pinchTriggered (QPinchGesture *gesture) | 
| Private Attributes | |
| bool | mDragging | 
| Flag to indicate a map canvas drag operation is taking place. | |
| bool | mPinching | 
| Flag to indicate a pinch gesture is taking place. | |
| Additional Inherited Members | |
|  Protected Member Functions inherited from QgsMapTool | |
| QgsMapTool (QgsMapCanvas *canvas) | |
| constructor takes map canvas as a parameter | |
| QgsPoint | toMapCoordinates (const QPoint &point) | 
| transformation from screen coordinates to map coordinates | |
| QgsPoint | toLayerCoordinates (QgsMapLayer *layer, const QPoint &point) | 
| transformation from screen coordinates to layer's coordinates | |
| QgsPoint | toLayerCoordinates (QgsMapLayer *layer, const QgsPoint &point) | 
| transformation from map coordinates to layer's coordinates | |
| QgsPoint | toMapCoordinates (QgsMapLayer *layer, const QgsPoint &point) | 
| transformation from layer's coordinates to map coordinates (which is different in case reprojection is used) | |
| QgsRectangle | toLayerCoordinates (QgsMapLayer *layer, const QgsRectangle &rect) | 
| trnasformation of the rect from map coordinates to layer's coordinates | |
| QPoint | toCanvasCoordinates (const QgsPoint &point) | 
| transformation from map coordinates to screen coordinates | |
|  Protected Attributes inherited from QgsMapTool | |
| QgsMapCanvas * | mCanvas | 
| pointer to map canvas | |
| QCursor | mCursor | 
| cursor used in map tool | |
| QAction * | mAction | 
| optionally map tool can have pointer to action which will be used to set that action as active | |
| QAbstractButton * | mButton | 
| optionally map tool can have pointer to a button which will be used to set that action as active | |
| QgsMapToolTouch::QgsMapToolTouch | ( | QgsMapCanvas * | canvas | ) | 
constructor
Definition at line 26 of file qgsmaptooltouch.cpp.
| QgsMapToolTouch::~QgsMapToolTouch | ( | ) | 
Definition at line 35 of file qgsmaptooltouch.cpp.
References QgsMapTool::mCanvas.
| 
 | virtual | 
called when set as currently active map tool
Reimplemented from QgsMapTool.
Definition at line 40 of file qgsmaptooltouch.cpp.
References QgsMapTool::mCanvas.
| 
 | virtual | 
Overridden Mouse double click event.
Reimplemented from QgsMapTool.
Definition at line 87 of file qgsmaptooltouch.cpp.
References QgsMapTool::mCanvas, mPinching, and QgsMapCanvas::zoomWithCenter().
| 
 | virtual | 
Overridden mouse move event.
Reimplemented from QgsMapTool.
Definition at line 52 of file qgsmaptooltouch.cpp.
References QgsMapTool::mCanvas, mDragging, mPinching, and QgsMapCanvas::panAction().
| 
 | virtual | 
Overridden mouse release event.
Reimplemented from QgsMapTool.
Definition at line 65 of file qgsmaptooltouch.cpp.
References QgsMapCanvas::getCoordinateTransform(), QgsMapTool::mCanvas, mDragging, mPinching, QgsMapCanvas::panActionEnd(), QgsMapCanvas::refresh(), QgsMapCanvas::setExtent(), and QgsMapToPixel::toMapPoint().
| 
 | virtual | 
called when map tool is being deactivated
Reimplemented from QgsMapTool.
Definition at line 46 of file qgsmaptooltouch.cpp.
References QgsMapTool::mCanvas.
| bool QgsMapToolTouch::gestureEvent | ( | QGestureEvent * | event | ) | 
Definition at line 95 of file qgsmaptooltouch.cpp.
References mPinching, and pinchTriggered().
| 
 | inlinevirtual | 
Check whether this MapTool performs a zoom or pan operation.
If it does, we will be able to perform the zoom and then resume operations with the original / previously used tool.
Reimplemented from QgsMapTool.
Definition at line 50 of file qgsmaptooltouch.h.
| 
 | private | 
Definition at line 107 of file qgsmaptooltouch.cpp.
References QgsMapCanvas::extent(), QgsMapCanvas::getCoordinateTransform(), QgsMapTool::mCanvas, mPinching, QgsMapCanvas::refresh(), QgsRectangle::scale(), QgsMapCanvas::setExtent(), QgsMapToPixel::toMapPoint(), and QgsMapCanvas::zoomOut().
Referenced by gestureEvent().
| 
 | private | 
Flag to indicate a map canvas drag operation is taking place.
Definition at line 57 of file qgsmaptooltouch.h.
Referenced by canvasMoveEvent(), and canvasReleaseEvent().
| 
 | private | 
Flag to indicate a pinch gesture is taking place.
Definition at line 59 of file qgsmaptooltouch.h.
Referenced by canvasDoubleClickEvent(), canvasMoveEvent(), canvasReleaseEvent(), gestureEvent(), and pinchTriggered().
 1.8.1.2
 1.8.1.2