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.

	~QgsMapToolAdvancedDigitizing () override

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

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

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

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

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.

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

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

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

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

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.

virtual QgsMapLayer *	layer () const
	Returns the layer associated with the map tool.

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

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

bool	useSnappingIndicator () const
	Returns whether the snapping indicator should automatically be used.

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

QgsGeometryRubberBand *	createGeometryRubberBand (Qgis::GeometryType geometryType=Qgis::GeometryType::Line, bool alternativeBand=false) const
	Creates a geometry rubber band with the color/line width from the QGIS settings.

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

Public Member Functions inherited from QgsMapTool
	~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 void	canvasDoubleClickEvent (QgsMapMouseEvent *e)
	Mouse double-click event for overriding. Default implementation does nothing.

virtual bool	canvasToolTipEvent (QHelpEvent *e)
	Tooltip event for overriding.

virtual void	clean ()
	convenient method to clean members

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

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.

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

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.

void	setUseSnappingIndicator (bool enabled)
	Sets whether a snapping indicator should automatically be used.

Protected Member Functions inherited from QgsMapToolEdit
TopologicalResult	addTopologicalPoints (const QVector< QgsPoint > &vertices)
	Adds a list of vertices to other features to keep topology up to date, e.g.

Q_DECL_DEPRECATED TopologicalResult	addTopologicalPoints (const QVector< QgsPointXY > &vertices)
	Adds a list of vertices to other features to keep topology up to date, e.g.

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

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

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

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

Protected Member Functions inherited from QgsMapTool
	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).

Protected Attributes
QgsAdvancedDigitizingDockWidget *	mCadDockWidget = nullptr

Protected Attributes inherited from QgsMapTool
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.

Additional Inherited Members
Public Types inherited from QgsMapTool
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...

typedef QFlags< Flag >	Flags

Signals inherited from QgsMapTool
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 ()

Static Public Member Functions inherited from QgsMapToolEdit
static double	defaultMValue ()
	Returns default M value.

static double	defaultZValue ()
	Returns default Z value.

Static Public Member Functions inherited from QgsMapTool
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.

Protected Types inherited from QgsMapToolEdit
enum	TopologicalResult { Success = 0 , InvalidCanvas = 1 , InvalidLayer = 2 }
	Result of addTopologicalPoints. More...

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

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

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

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 38 of file qgsmaptooladvanceddigitizing.h.

Constructor & Destructor Documentation

◆ QgsMapToolAdvancedDigitizing()

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.

◆ ~QgsMapToolAdvancedDigitizing()

QgsMapToolAdvancedDigitizing::~QgsMapToolAdvancedDigitizing ( )

overridedefault

Member Function Documentation

◆ activate()

void QgsMapToolAdvancedDigitizing::activate ( )

overridevirtual

Registers this maptool with the cad dock widget.

Reimplemented from QgsMapTool.

Reimplemented in QgsMapToolCapture, and QgsMapToolDigitizeFeature.

Definition at line 114 of file qgsmaptooladvanceddigitizing.cpp.

◆ cadCanvasMoveEvent()

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, QgsCreateRectangleTextItemMapTool, QgsCreatePictureItemMapTool, and QgsMapToolModifyAnnotation.

Definition at line 185 of file qgsmaptooladvanceddigitizing.h.

◆ cadCanvasPressEvent()

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

Reimplemented in QgsCreatePointTextItemMapTool, QgsCreateRectangleTextItemMapTool, QgsCreatePictureItemMapTool, and QgsMapToolModifyAnnotation.

Definition at line 163 of file qgsmaptooladvanceddigitizing.h.

◆ cadCanvasReleaseEvent()

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

Reimplemented in QgsMapToolCapture, QgsMapToolDigitizeFeature, and QgsCreateMarkerItemMapTool.

Definition at line 174 of file qgsmaptooladvanceddigitizing.h.

◆ cadDockWidget()

QgsAdvancedDigitizingDockWidget * QgsMapToolAdvancedDigitizing::cadDockWidget ( ) const

inline

Definition at line 68 of file qgsmaptooladvanceddigitizing.h.

◆ canvasMoveEvent()

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 83 of file qgsmaptooladvanceddigitizing.cpp.

◆ canvasPressEvent()

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 34 of file qgsmaptooladvanceddigitizing.cpp.

◆ canvasReleaseEvent()

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 59 of file qgsmaptooladvanceddigitizing.cpp.

◆ deactivate()

void QgsMapToolAdvancedDigitizing::deactivate ( )

overridevirtual

Unregisters this maptool from the cad dock widget.

Reimplemented from QgsMapTool.

Reimplemented in QgsMapToolModifyAnnotation, QgsMapToolCapture, and QgsMapToolDigitizeFeature.

Definition at line 129 of file qgsmaptooladvanceddigitizing.cpp.

◆ isAdvancedDigitizingAllowed()

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.

The default is that advanced digitizing is allowed.

See also: setAdvancedDigitizingAllowed()

Definition at line 94 of file qgsmaptooladvanceddigitizing.h.

◆ isAutoSnapEnabled()

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.

The default is that auto snapping is enabled.

See also: isAutoSnapEnabled()

Definition at line 106 of file qgsmaptooladvanceddigitizing.h.

◆ layer()

QgsMapLayer * QgsMapToolAdvancedDigitizing::layer ( ) const

virtual

Returns the layer associated with the map tool.

By default this returns the map canvas' QgsMapCanvas::currentLayer().

Since: QGIS 3.22

Reimplemented in QgsMapToolCaptureAnnotationItem.

Definition at line 141 of file qgsmaptooladvanceddigitizing.cpp.

◆ setAdvancedDigitizingAllowed()

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.

The default is that advanced digitizing is allowed.

See also: isAdvancedDigitizingAllowed()

Definition at line 128 of file qgsmaptooladvanceddigitizing.h.

◆ setAutoSnapEnabled()

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.

The default is that auto snapping is enabled.

See also: isAutoSnapEnabled()

Definition at line 138 of file qgsmaptooladvanceddigitizing.h.

◆ setSnapToLayerGridEnabled()

void QgsMapToolAdvancedDigitizing::setSnapToLayerGridEnabled ( bool snapToLayerGridEnabled )

Enables or disables snap to grid of mouse events.

The snapping will occur in the layer's CRS.

Since: QGIS 3.4

Definition at line 199 of file qgsmaptooladvanceddigitizing.cpp.

◆ setUseSnappingIndicator()

void QgsMapToolAdvancedDigitizing::setUseSnappingIndicator ( bool enabled )

protected

Sets whether a snapping indicator should automatically be used.

The default is that a snap indicator is not used.

See also: useSnappingIndicator()

Since: QGIS 3.40

Definition at line 151 of file qgsmaptooladvanceddigitizing.cpp.

◆ snapToLayerGridEnabled()

bool QgsMapToolAdvancedDigitizing::snapToLayerGridEnabled ( ) const

Enables or disables snap to grid of mouse events.

The snapping will occur in the layer's CRS.

Since: QGIS 3.4

Definition at line 194 of file qgsmaptooladvanceddigitizing.cpp.

◆ useSnappingIndicator()

bool QgsMapToolAdvancedDigitizing::useSnappingIndicator ( ) const

Returns whether the snapping indicator should automatically be used.

The default is that a snap indicator is not used.

See also: setUseSnappingIndicator()

Since: QGIS 3.40

Definition at line 146 of file qgsmaptooladvanceddigitizing.cpp.

Member Data Documentation

◆ mCadDockWidget

QgsAdvancedDigitizingDockWidget* QgsMapToolAdvancedDigitizing::mCadDockWidget = nullptr

protected

Definition at line 151 of file qgsmaptooladvanceddigitizing.h.

The documentation for this class was generated from the following files:

/build/qgis-3.40.0+99sid/src/gui/maptools/qgsmaptooladvanceddigitizing.h
/build/qgis-3.40.0+99sid/src/gui/maptools/qgsmaptooladvanceddigitizing.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QgsMapToolAdvancedDigitizing()

◆ ~QgsMapToolAdvancedDigitizing()

Member Function Documentation

◆ activate()

◆ cadCanvasMoveEvent()

◆ cadCanvasPressEvent()

◆ cadCanvasReleaseEvent()

◆ cadDockWidget()

◆ canvasMoveEvent()

◆ canvasPressEvent()

◆ canvasReleaseEvent()

◆ deactivate()

◆ isAdvancedDigitizingAllowed()

◆ isAutoSnapEnabled()

◆ layer()

◆ setAdvancedDigitizingAllowed()

◆ setAutoSnapEnabled()

◆ setSnapToLayerGridEnabled()

◆ setUseSnappingIndicator()

◆ snapToLayerGridEnabled()

◆ useSnappingIndicator()

Member Data Documentation

◆ mCadDockWidget