#include <qgsmaptoolcapture.h>

Inheritance diagram for QgsMapToolCapture:

[legend]

Public Types
enum	Capability { NoCapabilities = 0 , SupportsCurves = 1 }
	Specific capabilities of the tool. More...

enum	CaptureMode { CaptureNone , CapturePoint , CaptureLine , CapturePolygon }
	Different capture modes. More...

enum	CaptureTechnique { StraightSegments , CircularString , Streaming }
	Capture technique. More...

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...

Public Slots
void	setCircularDigitizingEnabled (bool enable)
	Enable the digitizing with curve. More...

void	setStreamDigitizingEnabled (bool enable)
	Toggles the stream digitizing mode. More...

Public Member Functions
	QgsMapToolCapture (QgsMapCanvas canvas, QgsAdvancedDigitizingDockWidget cadDockWidget, CaptureMode mode)
	constructor More...

	~QgsMapToolCapture () override

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

int	addCurve (QgsCurve *c)
	Adds a whole curve (e.g. circularstring) to the captured geometry. Curve must be in map CRS. More...

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

virtual QgsMapToolCapture::Capabilities	capabilities () const
	Returns flags containing the supported capabilities. More...

const QgsCompoundCurve *	captureCurve () const
	Gets the capture curve. More...

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

void	clearCurve ()
	Clear capture curve. More...

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

void	deleteTempRubberBand ()
	Clean a temporary rubberband. More...

void	keyPressEvent (QKeyEvent *e) override
	Intercept key events like Esc or Del to delete the last point. More...

CaptureMode	mode () const
	The capture mode. More...

QList< QgsPointLocator::Match >	snappingMatches () const
	Returns a list of matches for each point on the captureCurve. More...

virtual bool	supportsTechnique (CaptureTechnique technique) const
	Returns `true` if the tool supports the specified capture technique. More...

QgsRubberBand *	takeRubberBand ()
	Returns the rubberBand currently owned by this map tool and transfers ownership to the caller. More...

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

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	defaultMValue () const
	Returns default M value. More...

double	defaultZValue () const
	Returns default Z value. 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 `nullptr` if no action is associated. More...

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

QgsMapCanvas *	canvas () const
	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 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	keyReleaseEvent (QKeyEvent *e)
	Key event for overriding. Default implementation does nothing. More...

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. More...

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. 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 Slots
void	stopCapturing ()
	Stop capturing. More...

Protected Member Functions
int	addVertex (const QgsPointXY &mapPoint, const QgsPointLocator::Match &match)
	Variant to supply more information in the case of snapping. More...

int	addVertex (const QgsPointXY &point)
	Adds a point to the rubber band (in map coordinates) and to the capture list (in layer coordinates) More...

void	closePolygon ()
	Close an open polygon. More...

int	fetchLayerPoint (const QgsPointLocator::Match &match, QgsPoint &layerPoint)
	Fetches the original point from the source layer if it has the same CRS as the current layer. More...

bool	isCapturing () const
	Are we currently capturing? More...

QgsPoint	mapPoint (const QgsMapMouseEvent &e) const
	Creates a QgsPoint with ZM support if necessary (according to the WkbType of the current layer). More...

QgsPoint	mapPoint (const QgsPointXY &point) const
	Creates a QgsPoint with ZM support if necessary (according to the WkbType of the current layer). More...

int	nextPoint (const QgsPoint &mapPoint, QgsPoint &layerPoint)
	Converts a map point to layer coordinates. More...

int	nextPoint (QPoint p, QgsPoint &layerPoint, QgsPoint &mapPoint)
	Converts a point to map coordinates and layer coordinates. More...

Q_DECL_DEPRECATED QVector< QgsPointXY >	points () const
	List of digitized points. More...

QgsPointSequence	pointsZM () const
	List of digitized points. More...

void	setPoints (const QgsPointSequence &pointList)
	Set the points on which to work. More...

Q_DECL_DEPRECATED void	setPoints (const QVector< QgsPointXY > &pointList)
	Set the points on which to work. More...

int	size ()
	Number of points digitized. More...

void	startCapturing ()
	Start capturing. More...

void	undo (bool isAutoRepeat=false)
	Removes the last vertex from mRubberBand and mCaptureList. More...

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

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. 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 a map canvas as a parameter. More...

void	setToolName (const QString &name)
	Sets the tool's name. More...

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

QgsPointXY	toLayerCoordinates (const QgsMapLayer *layer, const QgsPointXY &point)
	Transforms a point from map coordinates to layer coordinates. More...

QgsRectangle	toLayerCoordinates (const QgsMapLayer *layer, const QgsRectangle &rect)
	Transforms a rect from map coordinates to layer coordinates. More...

QgsPointXY	toLayerCoordinates (const QgsMapLayer *layer, QPoint point)
	Transforms a point from screen coordinates to layer coordinates. More...

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). More...

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). More...

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

Additional Inherited Members
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::MessageLevel::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...

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) 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...

Protected Attributes inherited from QgsMapToolAdvancedDigitizing
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. More...

QAbstractButton *	mButton = nullptr
	Optional pointer to a button that will be checked on map tool activation and unchecked on map tool deactivation. More...

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

QCursor	mCursor
	The cursor used in the map tool. More...

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

Detailed Description

Definition at line 122 of file qgsmaptoolcapture.h.

Member Enumeration Documentation

◆ Capability

enum QgsMapToolCapture::Capability

Specific capabilities of the tool.

Enumerator
NoCapabilities	No specific capabilities.
SupportsCurves	Supports curved geometries input.

Definition at line 150 of file qgsmaptoolcapture.h.

◆ CaptureMode

enum QgsMapToolCapture::CaptureMode

Different capture modes.

Enumerator
CaptureNone	Do not capture / determine mode from layer geometry type.
CapturePoint	Capture points.
CaptureLine	Capture lines.
CapturePolygon	Capture polygons.

Definition at line 129 of file qgsmaptoolcapture.h.

◆ CaptureTechnique

enum QgsMapToolCapture::CaptureTechnique

Capture technique.

Since: QGIS 3.20

Enumerator
StraightSegments	Default capture mode - capture occurs with straight line segments.
CircularString	Capture in circular strings.
Streaming	Streaming points digitizing mode (points are automatically added as the mouse cursor moves). Since QGIS 3.20.

Definition at line 142 of file qgsmaptoolcapture.h.

Constructor & Destructor Documentation

◆ QgsMapToolCapture()

QgsMapToolCapture::QgsMapToolCapture	(	QgsMapCanvas *	canvas,
		QgsAdvancedDigitizingDockWidget *	cadDockWidget,
		CaptureMode	mode
	)

constructor

◆ ~QgsMapToolCapture()

QgsMapToolCapture::~QgsMapToolCapture ( )

override

Member Function Documentation

◆ activate()

void QgsMapToolCapture::activate ( )

overridevirtual

Registers this maptool with the cad dock widget.

Reimplemented from QgsMapToolAdvancedDigitizing.

Reimplemented in QgsMapToolDigitizeFeature.

◆ addCurve()

int QgsMapToolCapture::addCurve ( QgsCurve * c )

Adds a whole curve (e.g. circularstring) to the captured geometry. Curve must be in map CRS.

◆ addVertex() [1/2]

int QgsMapToolCapture::addVertex	(	const QgsPointXY &	mapPoint,
		const QgsPointLocator::Match &	match
	)

protected

Variant to supply more information in the case of snapping.

Parameters

mapPoint	The vertex to add in map coordinates
match	Data about the snapping match. Can be an invalid match, if point not snapped.

Since: QGIS 2.14

◆ addVertex() [2/2]

int QgsMapToolCapture::addVertex ( const QgsPointXY & point )

protected

Adds a point to the rubber band (in map coordinates) and to the capture list (in layer coordinates)

Returns: 0 in case of success, 1 if current layer is not a vector layer, 2 if coordinate transformation failed

◆ cadCanvasMoveEvent()

void QgsMapToolCapture::cadCanvasMoveEvent ( QgsMapMouseEvent * e )

overridevirtual

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 from QgsMapToolAdvancedDigitizing.

◆ capabilities()

virtual QgsMapToolCapture::Capabilities QgsMapToolCapture::capabilities ( ) const

virtual

Returns flags containing the supported capabilities.

Reimplemented in QgsMapToolDigitizeFeature.

◆ captureCurve()

const QgsCompoundCurve* QgsMapToolCapture::captureCurve ( ) const

inline

Gets the capture curve.

Returns: Capture curve

Definition at line 200 of file qgsmaptoolcapture.h.

◆ clean()

void QgsMapToolCapture::clean ( )

overridevirtual

convenient method to clean members

Reimplemented from QgsMapTool.

◆ clearCurve()

void QgsMapToolCapture::clearCurve ( )

Clear capture curve.

Since: QGIS 3.0

◆ closePolygon()

void QgsMapToolCapture::closePolygon ( )

protected

Close an open polygon.

◆ deactivate()

void QgsMapToolCapture::deactivate ( )

overridevirtual

Unregisters this maptool from the cad dock widget.

Reimplemented from QgsMapToolAdvancedDigitizing.

Reimplemented in QgsMapToolDigitizeFeature.

◆ deleteTempRubberBand()

void QgsMapToolCapture::deleteTempRubberBand ( )

Clean a temporary rubberband.

◆ fetchLayerPoint()

int QgsMapToolCapture::fetchLayerPoint	(	const QgsPointLocator::Match &	match,
		QgsPoint &	layerPoint
	)

protected

Fetches the original point from the source layer if it has the same CRS as the current layer.

Returns: 0 in case of success, 1 if not applicable (CRS mismatch), 2 in case of failure

Since: QGIS 2.14

◆ isCapturing()

bool QgsMapToolCapture::isCapturing ( ) const

protected

Are we currently capturing?

Returns: Is the tool in capture mode?

◆ keyPressEvent()

void QgsMapToolCapture::keyPressEvent ( QKeyEvent * e )

overridevirtual

Intercept key events like Esc or Del to delete the last point.

Parameters

e key event

Reimplemented from QgsMapTool.

◆ mapPoint() [1/2]

QgsPoint QgsMapToolCapture::mapPoint ( const QgsMapMouseEvent & e ) const

protected

Creates a QgsPoint with ZM support if necessary (according to the WkbType of the current layer).

If the point is snapped, then the Z value is took from the snapped point.

Parameters

e	A mouse event

Returns: a point with ZM support if necessary

Since: QGIS 3.0

◆ mapPoint() [2/2]

QgsPoint QgsMapToolCapture::mapPoint ( const QgsPointXY & point ) const

protected

Creates a QgsPoint with ZM support if necessary (according to the WkbType of the current layer).

Parameters

point A point in 2D

Returns: a point with ZM support if necessary

Since: QGIS 3.0

◆ mode()

CaptureMode QgsMapToolCapture::mode ( ) const

inline

The capture mode.

Returns: Capture mode

Definition at line 183 of file qgsmaptoolcapture.h.

◆ nextPoint() [1/2]

int QgsMapToolCapture::nextPoint	(	const QgsPoint &	mapPoint,
		QgsPoint &	layerPoint
	)

protected

Converts a map point to layer coordinates.

Parameters

	mapPoint	the point in map coordinates
[in,out]	layerPoint	the point in layer coordinates

Returns: 0 in case of success 1 if the current layer is nullptr or not a vector layer 2 if the transformation failed

◆ nextPoint() [2/2]

int QgsMapToolCapture::nextPoint	(	QPoint	p,
		QgsPoint &	layerPoint,
		QgsPoint &	mapPoint
	)

protected

Converts a point to map coordinates and layer coordinates.

Parameters

	p	the input point
[in,out]	layerPoint	the point in layer coordinates
[in,out]	mapPoint	the point in map coordinates

Returns: 0 in case of success 1 if the current layer is nullptr or not a vector layer 2 if the transformation failed

◆ points()

Q_DECL_DEPRECATED QVector<QgsPointXY> QgsMapToolCapture::points ( ) const

protected

List of digitized points.

Returns: List of points

Deprecated:: since QGIS 3.12 - will be removed in QGIS 4.0. Use the variant returns QgsPoint objects instead of QgsPointXY.

◆ pointsZM()

QgsPointSequence QgsMapToolCapture::pointsZM ( ) const

protected

List of digitized points.

Returns: List of points

Since: QGIS 3.12

◆ setCircularDigitizingEnabled

void QgsMapToolCapture::setCircularDigitizingEnabled ( bool enable )

slot

Enable the digitizing with curve.

◆ setPoints() [1/2]

void QgsMapToolCapture::setPoints ( const QgsPointSequence & pointList )

protected

Set the points on which to work.

Parameters

pointList A list of points

Since: QGIS 3.12

◆ setPoints() [2/2]

Q_DECL_DEPRECATED void QgsMapToolCapture::setPoints ( const QVector< QgsPointXY > & pointList )

protected

Set the points on which to work.

Parameters

pointList A list of points

Deprecated:: since QGIS 3.12 - will be removed in QGIS 4.0. Use the variant which accepts QgsPoint objects instead of QgsPointXY.

◆ setStreamDigitizingEnabled

void QgsMapToolCapture::setStreamDigitizingEnabled ( bool enable )

slot

Toggles the stream digitizing mode.

Since: QGIS 3.20

◆ size()

int QgsMapToolCapture::size ( )

protected

Number of points digitized.

Returns: Number of points

◆ snappingMatches()

QList<QgsPointLocator::Match> QgsMapToolCapture::snappingMatches ( ) const

Returns a list of matches for each point on the captureCurve.

Since: QGIS 3.0

◆ startCapturing()

void QgsMapToolCapture::startCapturing ( )

protected

Start capturing.

◆ stopCapturing

void QgsMapToolCapture::stopCapturing ( )

protectedslot

Stop capturing.

◆ supportsTechnique()

virtual bool QgsMapToolCapture::supportsTechnique ( CaptureTechnique technique ) const

virtual

Returns true if the tool supports the specified capture technique.

Since: QGIS 3.20

Reimplemented in QgsMapToolDigitizeFeature.

◆ takeRubberBand()

QgsRubberBand* QgsMapToolCapture::takeRubberBand ( )

Returns the rubberBand currently owned by this map tool and transfers ownership to the caller.

Since: QGIS 3.8

◆ undo()

void QgsMapToolCapture::undo ( bool isAutoRepeat = false )

protected

Removes the last vertex from mRubberBand and mCaptureList.

Since QGIS 3.20, if isAutoRepeat is set to true then the undo operation will be treated as a auto repeated undo as if the user has held down the undo key for an extended period of time.

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

/build/qgis-3.20.0+99unstable/src/gui/qgsmaptoolcapture.h

Public Types

Public Slots

Public Member Functions

Protected Slots

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Capability

◆ CaptureMode

◆ CaptureTechnique

Constructor & Destructor Documentation

◆ QgsMapToolCapture()

◆ ~QgsMapToolCapture()

Member Function Documentation

◆ activate()

◆ addCurve()

◆ addVertex() [1/2]

◆ addVertex() [2/2]

◆ cadCanvasMoveEvent()

◆ capabilities()

◆ captureCurve()

◆ clean()

◆ clearCurve()

◆ closePolygon()

◆ deactivate()

◆ deleteTempRubberBand()

◆ fetchLayerPoint()

◆ isCapturing()

◆ keyPressEvent()

◆ mapPoint() [1/2]

◆ mapPoint() [2/2]

◆ mode()

◆ nextPoint() [1/2]

◆ nextPoint() [2/2]

◆ points()

◆ pointsZM()

◆ setCircularDigitizingEnabled

◆ setPoints() [1/2]

◆ setPoints() [2/2]

◆ setStreamDigitizingEnabled

◆ size()

◆ snappingMatches()

◆ startCapturing()

◆ stopCapturing

◆ supportsTechnique()

◆ takeRubberBand()

◆ undo()