The QgsMapToolAdvancedDigitizing class is a QgsMapTool which gives event directly in map coordinates and allows filtering its events. More...

#include <qgsmaptooladvanceddigitizing.h>

Inheritance diagram for QgsMapToolAdvancedDigitizing:

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Public Member Functions
	QgsMapToolAdvancedDigitizing (QgsMapCanvas canvas, QgsAdvancedDigitizingDockWidget cadDockWidget)
	Creates an advanced digitizing maptool. More...

void	activate () override
	Registers this maptool with the cad dock widget. More...

virtual void	cadCanvasMoveEvent (QgsMapMouseEvent *e)
	Override this method when subclassing this class. More...

virtual void	cadCanvasPressEvent (QgsMapMouseEvent *e)
	Override this method when subclassing this class. More...

virtual void	cadCanvasReleaseEvent (QgsMapMouseEvent *e)
	Override this method when subclassing this class. More...

QgsAdvancedDigitizingDockWidget *	cadDockWidget () const

void	canvasMoveEvent (QgsMapMouseEvent *e) override
	Catch the mouse move event, filters it, transforms it to map coordinates and send it to virtual method. More...

void	canvasPressEvent (QgsMapMouseEvent *e) override
	Catch the mouse press event, filters it, transforms it to map coordinates and send it to virtual method. More...

void	canvasReleaseEvent (QgsMapMouseEvent *e) override
	Catch the mouse release event, filters it, transforms it to map coordinates and send it to virtual method. More...

void	deactivate () override
	Unregisters this maptool from the cad dock widget. More...

bool	isAdvancedDigitizingAllowed () const
	Returns whether functionality of advanced digitizing dock widget is currently allowed. More...

bool	isAutoSnapEnabled () const
	Returns whether mouse events (press/move/release) should automatically try to snap mouse position (according to the snapping configuration of map canvas) before passing the mouse coordinates to the tool. More...

void	setSnapToLayerGridEnabled (bool snapToLayerGridEnabled)
	Enables or disables snap to grid of mouse events. More...

bool	snapToLayerGridEnabled () const
	Enables or disables snap to grid of mouse events. More...

Public Member Functions inherited from QgsMapToolEdit
	QgsMapToolEdit (QgsMapCanvas *canvas)

double	defaultZValue () const
	Returns default Z value Use for set Z coordinate to new vertex for 2.5d geometries. More...

Flags	flags () const override
	Returns the flags for the map tool. More...

Public Member Functions inherited from QgsMapTool
	~QgsMapTool () override

QAction *	action ()
	Returns associated action with map tool or NULL if no action is associated. More...

QAbstractButton *	button ()
	Returns associated button with map tool or NULL if no button is associated. More...

QgsMapCanvas *	canvas ()
	returns pointer to the tool's map canvas More...

virtual void	canvasDoubleClickEvent (QgsMapMouseEvent *e)
	Mouse double-click event for overriding. Default implementation does nothing. More...

virtual void	clean ()
	convenient method to clean members More...

virtual bool	gestureEvent (QGestureEvent *e)
	gesture event for overriding. Default implementation does nothing. More...

bool	isActive () const
	Returns if the current map tool active on the map canvas. More...

virtual void	keyPressEvent (QKeyEvent *e)
	Key event for overriding. Default implementation does nothing. More...

virtual void	keyReleaseEvent (QKeyEvent *e)
	Key event for overriding. Default implementation does nothing. More...

void	setAction (QAction *action)
	Use this to associate a QAction to this maptool. More...

void	setButton (QAbstractButton *button)
	Use this to associate a button to this maptool. More...

virtual void	setCursor (const QCursor &cursor)
	Sets a user defined cursor. More...

QString	toolName ()
	Emit map tool changed with the old tool. More...

virtual void	wheelEvent (QWheelEvent *e)
	Mouse wheel event for overriding. Default implementation does nothing. More...

Protected Member Functions
void	setAdvancedDigitizingAllowed (bool allowed)
	Sets whether functionality of advanced digitizing dock widget is currently allowed. More...

void	setAutoSnapEnabled (bool enabled)
	Sets whether mouse events (press/move/release) should automatically try to snap mouse position This method is protected because it should be a decision of the map tool and not from elsewhere. More...

Protected Member Functions inherited from QgsMapToolEdit
int	addTopologicalPoints (const QVector< QgsPointXY > &geom)
	Adds vertices to other features to keep topology up to date, e.g. More...

QgsGeometryRubberBand *	createGeometryRubberBand (QgsWkbTypes::GeometryType geometryType=QgsWkbTypes::LineGeometry, bool alternativeBand=false) const

QgsRubberBand *	createRubberBand (QgsWkbTypes::GeometryType geometryType=QgsWkbTypes::LineGeometry, bool alternativeBand=false)
	Creates a rubber band with the color/line width from the QGIS settings. More...

QgsVectorLayer *	currentVectorLayer ()
	Returns the current vector layer of the map canvas or 0. More...

void	notifyNotEditableLayer ()
	Display a timed message bar noting the active vector layer is not editable. More...

void	notifyNotVectorLayer ()
	Display a timed message bar noting the active layer is not vector. More...

Protected Member Functions inherited from QgsMapTool
	QgsMapTool (QgsMapCanvas *canvas)
	constructor takes map canvas as a parameter More...

QPoint	toCanvasCoordinates (const QgsPointXY &point)
	transformation from map coordinates to screen coordinates More...

QgsPointXY	toLayerCoordinates (const QgsMapLayer *layer, QPoint point)
	transformation from screen coordinates to layer's coordinates More...

QgsPointXY	toLayerCoordinates (const QgsMapLayer *layer, const QgsPointXY &point)
	transformation from map coordinates to layer's coordinates More...

QgsRectangle	toLayerCoordinates (const QgsMapLayer *layer, const QgsRectangle &rect)
	trnasformation of the rect from map coordinates to layer's coordinates More...

QgsPointXY	toMapCoordinates (QPoint point)
	transformation from screen coordinates to map coordinates More...

QgsPointXY	toMapCoordinates (const QgsMapLayer *layer, const QgsPointXY &point)
	transformation from layer's coordinates to map coordinates (which is different in case reprojection is used) More...

QgsPoint	toMapCoordinates (const QgsMapLayer *layer, const QgsPoint &point)
	transformation from layer's coordinates to map coordinates (which is different in case reprojection is used) More...

Protected Attributes
QgsAdvancedDigitizingDockWidget *	mCadDockWidget = nullptr

Protected Attributes inherited from QgsMapTool
QAction *	mAction = nullptr
	optionally map tool can have pointer to action which will be used to set that action as active More...

QAbstractButton *	mButton = nullptr
	optionally map tool can have pointer to a button which will be used to set that action as active More...

QgsMapCanvas *	mCanvas = nullptr
	pointer to map canvas More...

QCursor	mCursor
	cursor used in map tool More...

QString	mToolName
	translated name of the map tool More...

Additional Inherited Members
Public Types inherited from QgsMapTool
enum	Flag { Transient = 1 << 1, EditTool = 1 << 2, AllowZoomRect = 1 << 3 }
	Enumeration of flags that adjust the way the map tool operates. More...

Signals inherited from QgsMapTool
void	activated ()
	signal emitted once the map tool is activated More...

void	deactivated ()
	signal emitted once the map tool is deactivated More...

void	messageDiscarded ()
	emit signal to clear previous message More...

void	messageEmitted (const QString &message, Qgis::MessageLevel=Qgis::Info)
	emit a message More...

Static Public Member Functions inherited from QgsMapTool
static double	searchRadiusMM ()
	Gets search radius in mm. More...

static double	searchRadiusMU (const QgsRenderContext &context)
	Gets search radius in map units for given context. More...

static double	searchRadiusMU (QgsMapCanvas *canvas)
	Gets search radius in map units for given canvas. More...

Static Protected Member Functions inherited from QgsMapToolEdit
static QColor	digitizingFillColor ()
	Returns fill color for rubber bands (from global settings) More...

static QColor	digitizingStrokeColor ()
	Returns stroke color for rubber bands (from global settings) More...

static int	digitizingStrokeWidth ()
	Returns stroke width for rubber bands (from global settings) More...

Detailed Description

The QgsMapToolAdvancedDigitizing class is a QgsMapTool which gives event directly in map coordinates and allows filtering its events.

Events from QgsMapTool are caught and their QMouseEvent are transformed into QgsMapMouseEvent (with map coordinates). Events are then forwarded to corresponding virtual methods which can be reimplemented in subclasses. An event filter can be set on the map tool to filter and modify the events in map coordinates (

See also: QgsMapToolMapEventFilter).

Note: at the moment, the event filter is used by the CAD tools (

See also: QgsCadDocWidget).

Note: the event filter definition is not exposed in Python API to avoid any unexpected behavior.

Definition at line 36 of file qgsmaptooladvanceddigitizing.h.

Constructor & Destructor Documentation

QgsMapToolAdvancedDigitizing::QgsMapToolAdvancedDigitizing	(	QgsMapCanvas *	canvas,
		QgsAdvancedDigitizingDockWidget *	cadDockWidget
	)

explicit

Creates an advanced digitizing maptool.

Parameters

canvas	The map canvas on which the tool works
cadDockWidget	The cad dock widget which will be used to adjust mouse events

Definition at line 24 of file qgsmaptooladvanceddigitizing.cpp.

Member Function Documentation

void QgsMapToolAdvancedDigitizing::activate ( )

overridevirtual

Registers this maptool with the cad dock widget.

Reimplemented from QgsMapTool.

Reimplemented in QgsMapToolCapture.

Definition at line 120 of file qgsmaptooladvanceddigitizing.cpp.

virtual void QgsMapToolAdvancedDigitizing::cadCanvasMoveEvent ( QgsMapMouseEvent * e )

inlinevirtual

Override this method when subclassing this class.

This will receive adapted events from the cad system whenever a canvasMoveEvent is triggered and it's not hidden by the cad's construction mode.

Parameters

e	Mouse events prepared by the cad system

Reimplemented in QgsMapToolCapture.

Definition at line 145 of file qgsmaptooladvanceddigitizing.h.

virtual void QgsMapToolAdvancedDigitizing::cadCanvasPressEvent ( QgsMapMouseEvent * e )

inlinevirtual

Override this method when subclassing this class.

This will receive adapted events from the cad system whenever a canvasPressEvent is triggered and it's not hidden by the cad's construction mode.

Parameters

e	Mouse events prepared by the cad system

Definition at line 123 of file qgsmaptooladvanceddigitizing.h.

virtual void QgsMapToolAdvancedDigitizing::cadCanvasReleaseEvent ( QgsMapMouseEvent * e )

inlinevirtual

Override this method when subclassing this class.

This will receive adapted events from the cad system whenever a canvasReleaseEvent is triggered and it's not hidden by the cad's construction mode.

Parameters

e	Mouse events prepared by the cad system

Definition at line 134 of file qgsmaptooladvanceddigitizing.h.

QgsAdvancedDigitizingDockWidget* QgsMapToolAdvancedDigitizing::cadDockWidget ( ) const

inline

Definition at line 65 of file qgsmaptooladvanceddigitizing.h.

void QgsMapToolAdvancedDigitizing::canvasMoveEvent ( QgsMapMouseEvent * e )

overridevirtual

Catch the mouse move event, filters it, transforms it to map coordinates and send it to virtual method.

Reimplemented from QgsMapTool.

Definition at line 94 of file qgsmaptooladvanceddigitizing.cpp.

void QgsMapToolAdvancedDigitizing::canvasPressEvent ( QgsMapMouseEvent * e )

overridevirtual

Catch the mouse press event, filters it, transforms it to map coordinates and send it to virtual method.

Reimplemented from QgsMapTool.

Definition at line 31 of file qgsmaptooladvanceddigitizing.cpp.

void QgsMapToolAdvancedDigitizing::canvasReleaseEvent ( QgsMapMouseEvent * e )

overridevirtual

Catch the mouse release event, filters it, transforms it to map coordinates and send it to virtual method.

Reimplemented from QgsMapTool.

Definition at line 54 of file qgsmaptooladvanceddigitizing.cpp.

void QgsMapToolAdvancedDigitizing::deactivate ( )

overridevirtual

Unregisters this maptool from the cad dock widget.

Reimplemented from QgsMapTool.

Reimplemented in QgsMapToolCapture.

Definition at line 135 of file qgsmaptooladvanceddigitizing.cpp.

bool QgsMapToolAdvancedDigitizing::isAdvancedDigitizingAllowed ( ) const

inline

Returns whether functionality of advanced digitizing dock widget is currently allowed.

Tools may decide to switch this support on/off based on the current state of the map tool. For example, in vertex tool before user picks a vertex to move, advanced digitizing dock widget should be disabled and only enabled once a vertex is being moved. Other map tools may keep advanced digitizing allowed all the time.

If true is returned, that does not mean that advanced digitizing is actually active, because it is up to the user to enable/disable it when it is allowed.

See also: setAdvancedDigitizingAllowed()

Since: QGIS 3.0

Definition at line 80 of file qgsmaptooladvanceddigitizing.h.

bool QgsMapToolAdvancedDigitizing::isAutoSnapEnabled ( ) const

inline

Returns whether mouse events (press/move/release) should automatically try to snap mouse position (according to the snapping configuration of map canvas) before passing the mouse coordinates to the tool.

This may be desirable default behavior for some map tools, but not for other map tools. It is therefore possible to configure the behavior by the map tool.

See also: isAutoSnapEnabled()

Since: QGIS 3.0

Definition at line 90 of file qgsmaptooladvanceddigitizing.h.

void QgsMapToolAdvancedDigitizing::setAdvancedDigitizingAllowed ( bool allowed )

inlineprotected

Sets whether functionality of advanced digitizing dock widget is currently allowed.

This method is protected because it should be a decision of the map tool and not from elsewhere.

See also: isAdvancedDigitizingAllowed()

Since: QGIS 3.0

Definition at line 100 of file qgsmaptooladvanceddigitizing.h.

void QgsMapToolAdvancedDigitizing::setAutoSnapEnabled ( bool enabled )

inlineprotected

Sets whether mouse events (press/move/release) should automatically try to snap mouse position This method is protected because it should be a decision of the map tool and not from elsewhere.