QGIS API Documentation 3.36.0-Maidenhead (09951dc0acf)
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A map tool for panning the map. More...
#include <qgsmaptoolpan.h>
Signals | |
void | panDistanceBearingChanged (double distance, Qgis::DistanceUnit unit, double bearing) |
Emitted whenever the distance or bearing of an in-progress panning operation is changed. | |
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void | activated () |
signal emitted once the map tool is activated | |
void | deactivated () |
signal emitted once the map tool is deactivated | |
void | messageDiscarded () |
emit signal to clear previous message | |
void | messageEmitted (const QString &message, Qgis::MessageLevel=Qgis::MessageLevel::Info) |
emit a message | |
void | reactivated () |
Public Member Functions | |
QgsMapToolPan (QgsMapCanvas *canvas) | |
constructor | |
~QgsMapToolPan () override | |
void | activate () override |
called when set as currently active map tool | |
void | canvasDoubleClickEvent (QgsMapMouseEvent *e) override |
Mouse double-click event for overriding. Default implementation does nothing. | |
void | canvasMoveEvent (QgsMapMouseEvent *e) override |
Mouse move event for overriding. Default implementation does nothing. | |
void | canvasPressEvent (QgsMapMouseEvent *e) override |
Mouse press event for overriding. Default implementation does nothing. | |
void | canvasReleaseEvent (QgsMapMouseEvent *e) override |
Mouse release event for overriding. Default implementation does nothing. | |
void | deactivate () override |
called when map tool is being deactivated | |
Flags | flags () const override |
Returns the flags for the map tool. | |
bool | gestureEvent (QGestureEvent *e) override |
gesture event for overriding. Default implementation does nothing. | |
bool | isDragging () const |
Returns true if a drag operation is in progress. | |
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~QgsMapTool () override | |
QAction * | action () |
Returns associated action with map tool or nullptr if no action is associated. | |
QAbstractButton * | button () |
Returns associated button with map tool or nullptr if no button is associated. | |
QgsMapCanvas * | canvas () const |
returns pointer to the tool's map canvas | |
virtual bool | canvasToolTipEvent (QHelpEvent *e) |
Tooltip event for overriding. | |
virtual void | clean () |
convenient method to clean members | |
bool | isActive () const |
Returns if the current map tool active on the map canvas. | |
virtual void | keyPressEvent (QKeyEvent *e) |
Key event for overriding. Default implementation does nothing. | |
virtual void | keyReleaseEvent (QKeyEvent *e) |
Key event for overriding. Default implementation does nothing. | |
virtual void | populateContextMenu (QMenu *menu) |
Allows the tool to populate and customize the given menu, prior to showing it in response to a right-mouse button click. | |
virtual bool | populateContextMenuWithEvent (QMenu *menu, QgsMapMouseEvent *event) |
Allows the tool to populate and customize the given menu, prior to showing it in response to a right-mouse button click. | |
virtual void | reactivate () |
Called when the map tool is being activated while it is already active. | |
void | setAction (QAction *action) |
Use this to associate a QAction to this maptool. | |
void | setButton (QAbstractButton *button) |
Use this to associate a button to this maptool. | |
virtual void | setCursor (const QCursor &cursor) |
Sets a user defined cursor. | |
QgsPointXY | toMapCoordinates (QPoint point) |
Transforms a point from screen coordinates to map coordinates. | |
QString | toolName () |
Emit map tool changed with the old tool. | |
virtual void | wheelEvent (QWheelEvent *e) |
Mouse wheel event for overriding. Default implementation does nothing. | |
Additional Inherited Members | |
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enum | Flag { Transient = 1 << 1 , EditTool = 1 << 2 , AllowZoomRect = 1 << 3 , ShowContextMenu = 1 << 4 } |
Enumeration of flags that adjust the way the map tool operates. More... | |
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static double | searchRadiusMM () |
Gets search radius in mm. | |
static double | searchRadiusMU (const QgsRenderContext &context) |
Gets search radius in map units for given context. | |
static double | searchRadiusMU (QgsMapCanvas *canvas) |
Gets search radius in map units for given canvas. | |
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QgsMapTool (QgsMapCanvas *canvas) | |
Constructor takes a map canvas as a parameter. | |
QgsMapLayer * | layer (const QString &id) |
Returns the map layer with the matching ID, or nullptr if no layers could be found. | |
void | setToolName (const QString &name) |
Sets the tool's name. | |
QPoint | toCanvasCoordinates (const QgsPointXY &point) const |
Transforms a point from map coordinates to screen coordinates. | |
QgsPoint | toLayerCoordinates (const QgsMapLayer *layer, const QgsPoint &point) |
Transforms a point from map coordinates to layer coordinates. | |
QgsPointXY | toLayerCoordinates (const QgsMapLayer *layer, const QgsPointXY &point) |
Transforms a point from map coordinates to layer coordinates. | |
QgsRectangle | toLayerCoordinates (const QgsMapLayer *layer, const QgsRectangle &rect) |
Transforms a rect from map coordinates to layer coordinates. | |
QgsPointXY | toLayerCoordinates (const QgsMapLayer *layer, QPoint point) |
Transforms a point from screen coordinates to layer coordinates. | |
QgsPoint | toMapCoordinates (const QgsMapLayer *layer, const QgsPoint &point) |
Transforms a point from layer coordinates to map coordinates (which is different in case reprojection is used). | |
QgsPointXY | toMapCoordinates (const QgsMapLayer *layer, const QgsPointXY &point) |
Transforms a point from layer coordinates to map coordinates (which is different in case reprojection is used). | |
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QAction * | mAction = nullptr |
Optional pointer to an action that will be checked on map tool activation and unchecked on map tool deactivation. | |
QAbstractButton * | mButton = nullptr |
Optional pointer to a button that will be checked on map tool activation and unchecked on map tool deactivation. | |
QPointer< QgsMapCanvas > | mCanvas |
The pointer to the map canvas. | |
QCursor | mCursor |
The cursor used in the map tool. | |
QString | mToolName |
The translated name of the map tool. | |
QgsMapToolPan::QgsMapToolPan | ( | QgsMapCanvas * | canvas | ) |
constructor
Definition at line 25 of file qgsmaptoolpan.cpp.
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override |
Definition at line 34 of file qgsmaptoolpan.cpp.
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overridevirtual |
called when set as currently active map tool
Reimplemented from QgsMapTool.
Definition at line 40 of file qgsmaptoolpan.cpp.
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overridevirtual |
Mouse double-click event for overriding. Default implementation does nothing.
Reimplemented from QgsMapTool.
Definition at line 117 of file qgsmaptoolpan.cpp.
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overridevirtual |
Mouse move event for overriding. Default implementation does nothing.
Reimplemented from QgsMapTool.
Definition at line 67 of file qgsmaptoolpan.cpp.
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overridevirtual |
Mouse press event for overriding. Default implementation does nothing.
Reimplemented from QgsMapTool.
Definition at line 57 of file qgsmaptoolpan.cpp.
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overridevirtual |
Mouse release event for overriding. Default implementation does nothing.
Reimplemented from QgsMapTool.
Definition at line 80 of file qgsmaptoolpan.cpp.
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overridevirtual |
called when map tool is being deactivated
Reimplemented from QgsMapTool.
Definition at line 46 of file qgsmaptoolpan.cpp.
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overridevirtual |
Returns the flags for the map tool.
Reimplemented from QgsMapTool.
Definition at line 52 of file qgsmaptoolpan.cpp.
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overridevirtual |
gesture event for overriding. Default implementation does nothing.
Reimplemented from QgsMapTool.
Definition at line 125 of file qgsmaptoolpan.cpp.
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inline |
Returns true
if a drag operation is in progress.
Definition at line 54 of file qgsmaptoolpan.h.
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signal |
Emitted whenever the distance or bearing of an in-progress panning operation is changed.
This signal will be emitted during a pan operation as the user moves the map, giving the total distance and bearing between the map position at the start of the pan and the current pan position.