QGIS API Documentation
2.4.0-Chugiak
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A map tool for panning the map. More...
#include <qgsmaptoolpan.h>
Public Member Functions | |
QgsMapToolPan (QgsMapCanvas *canvas) | |
constructor More... | |
virtual void | canvasMoveEvent (QMouseEvent *e) |
Overridden mouse move event. More... | |
virtual void | canvasReleaseEvent (QMouseEvent *e) |
Overridden mouse release event. More... | |
virtual bool | isTransient () |
Check whether this MapTool performs a zoom or pan operation. More... | |
Public Member Functions inherited from QgsMapTool | |
virtual | ~QgsMapTool () |
virtual destructor More... | |
virtual void | canvasDoubleClickEvent (QMouseEvent *e) |
Mouse double click event for overriding. Default implementation does nothing. More... | |
virtual void | canvasPressEvent (QMouseEvent *e) |
Mouse press event for overriding. Default implementation does nothing. More... | |
virtual void | wheelEvent (QWheelEvent *e) |
Mouse wheel event for overriding. More... | |
virtual void | keyPressEvent (QKeyEvent *e) |
Key event for overriding. Default implementation does nothing. More... | |
virtual void | keyReleaseEvent (QKeyEvent *e) |
Key event for overriding. More... | |
virtual Q_DECL_DEPRECATED void | renderComplete () |
Called when rendering has finished. More... | |
void | setAction (QAction *action) |
Use this to associate a QAction to this maptool. More... | |
QAction * | action () |
Return associated action with map tool or NULL if no action is associated. More... | |
void | setButton (QAbstractButton *button) |
Use this to associate a button to this maptool. More... | |
QAbstractButton * | button () |
Return associated button with map tool or NULL if no button is associated. More... | |
virtual void | setCursor (QCursor cursor) |
Set a user defined cursor. More... | |
virtual bool | isEditTool () |
Check whether this MapTool performs an edit operation. More... | |
virtual void | activate () |
called when set as currently active map tool More... | |
virtual void | deactivate () |
called when map tool is being deactivated More... | |
QgsMapCanvas * | canvas () |
returns pointer to the tool's map canvas More... | |
QString | toolName () |
Emit map tool changed with the old tool. More... | |
Private Attributes | |
bool | mDragging |
Flag to indicate a map canvas drag operation is taking place. More... | |
Additional Inherited Members | |
Signals inherited from QgsMapTool | |
void | messageEmitted (QString message, QgsMessageBar::MessageLevel=QgsMessageBar::INFO) |
emit a message More... | |
void | messageDiscarded () |
emit signal to clear previous message More... | |
Static Public Member Functions inherited from QgsMapTool | |
static double | searchRadiusMM () |
Get search radius in mm. More... | |
static double | searchRadiusMU (const QgsRenderContext &context) |
Get search radius in map units for given context. More... | |
static double | searchRadiusMU (QgsMapCanvas *canvas) |
Get search radius in map units for given canvas. More... | |
Protected Member Functions inherited from QgsMapTool | |
QgsMapTool (QgsMapCanvas *canvas) | |
constructor takes map canvas as a parameter More... | |
QgsPoint | toMapCoordinates (const QPoint &point) |
transformation from screen coordinates to map coordinates More... | |
QgsPoint | toLayerCoordinates (QgsMapLayer *layer, const QPoint &point) |
transformation from screen coordinates to layer's coordinates More... | |
QgsPoint | toLayerCoordinates (QgsMapLayer *layer, const QgsPoint &point) |
transformation from map coordinates to layer's coordinates More... | |
QgsPoint | toMapCoordinates (QgsMapLayer *layer, const QgsPoint &point) |
transformation from layer's coordinates to map coordinates (which is different in case reprojection is used) More... | |
QgsRectangle | toLayerCoordinates (QgsMapLayer *layer, const QgsRectangle &rect) |
trnasformation of the rect from map coordinates to layer's coordinates More... | |
QPoint | toCanvasCoordinates (const QgsPoint &point) |
transformation from map coordinates to screen coordinates More... | |
Protected Attributes inherited from QgsMapTool | |
QgsMapCanvas * | mCanvas |
pointer to map canvas More... | |
QCursor | mCursor |
cursor used in map tool More... | |
QAction * | mAction |
optionally map tool can have pointer to action which will be used to set that action as active More... | |
QAbstractButton * | mButton |
optionally map tool can have pointer to a button which will be used to set that action as active More... | |
QString | mToolName |
translated name of the map tool More... | |
QgsMapToolPan::QgsMapToolPan | ( | QgsMapCanvas * | canvas | ) |
constructor
Definition at line 25 of file qgsmaptoolpan.cpp.
References QgsMapTool::mCursor, pan_bits, and pan_mask_bits.
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virtual |
Overridden mouse move event.
Reimplemented from QgsMapTool.
Definition at line 35 of file qgsmaptoolpan.cpp.
References QgsMapTool::mCanvas, mDragging, and QgsMapCanvas::panAction().
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virtual |
Overridden mouse release event.
Reimplemented from QgsMapTool.
Definition at line 45 of file qgsmaptoolpan.cpp.
References QgsMapCanvas::getCoordinateTransform(), QgsMapTool::mCanvas, mDragging, QgsMapCanvas::panActionEnd(), QgsMapCanvas::refresh(), QgsMapCanvas::setExtent(), and QgsMapToPixel::toMapPoint().
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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 39 of file qgsmaptoolpan.h.
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private |
Flag to indicate a map canvas drag operation is taking place.
Definition at line 44 of file qgsmaptoolpan.h.
Referenced by canvasMoveEvent(), and canvasReleaseEvent().