Base class for map tools that edit vector geometry. More...

#include <qgsmaptooledit.h>

Inheritance diagram for QgsMapToolEdit:

[legend]

Public Member Functions
	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.

virtual void	activate ()
	called when set as currently active map tool

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 void	canvasMoveEvent (QgsMapMouseEvent *e)
	Mouse move event for overriding. Default implementation does nothing.

virtual void	canvasPressEvent (QgsMapMouseEvent *e)
	Mouse press event for overriding. Default implementation does nothing.

virtual void	canvasReleaseEvent (QgsMapMouseEvent *e)
	Mouse release 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 void	deactivate ()
	called when map tool is being deactivated

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.

Static Public Member Functions
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
enum	TopologicalResult { Success = 0 , InvalidCanvas = 1 , InvalidLayer = 2 }
	Result of addTopologicalPoints. More...

Protected Member Functions
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).

Static Protected Member Functions
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)

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 ()

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.

Detailed Description

Base class for map tools that edit vector geometry.

Definition at line 32 of file qgsmaptooledit.h.

Member Enumeration Documentation

◆ TopologicalResult

enum QgsMapToolEdit::TopologicalResult

protected

Result of addTopologicalPoints.

Enumerator
Success	AddTopologicalPoints was successful.
InvalidCanvas	AddTopologicalPoints failed due to an invalid canvas.
InvalidLayer	AddTopologicalPoints failed due to an invalid canvas.

Definition at line 96 of file qgsmaptooledit.h.

Constructor & Destructor Documentation

◆ QgsMapToolEdit()

QgsMapToolEdit::QgsMapToolEdit ( QgsMapCanvas * canvas )

Definition at line 28 of file qgsmaptooledit.cpp.

Member Function Documentation

◆ addTopologicalPoints() [1/2]

QgsMapToolEdit::TopologicalResult QgsMapToolEdit::addTopologicalPoints ( const QVector< QgsPoint > & vertices )

protected

Adds a list of vertices to other features to keep topology up to date, e.g.

to neighbouring polygons. The vertices list specifies a set of topological points to add, in the layer's coordinate reference system.

Since: QGIS 3.10

Definition at line 90 of file qgsmaptooledit.cpp.

◆ addTopologicalPoints() [2/2]

QgsMapToolEdit::TopologicalResult QgsMapToolEdit::addTopologicalPoints ( const QVector< QgsPointXY > & vertices )

protected

Adds a list of vertices to other features to keep topology up to date, e.g.

to neighbouring polygons. The vertices list specifies a set of topological points to add, in the layer's coordinate reference system.

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

Definition at line 113 of file qgsmaptooledit.cpp.

◆ createGeometryRubberBand()

QgsGeometryRubberBand * QgsMapToolEdit::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.

The caller takes ownership of the returned object

Parameters

geometryType
alternativeBand	if `true`, rubber band will be set with more transparency and a dash pattern. default is `false`.

Definition at line 139 of file qgsmaptooledit.cpp.

◆ createRubberBand()

QgsRubberBand * QgsMapToolEdit::createRubberBand	(	Qgis::GeometryType	geometryType = `Qgis::GeometryType::Line`,
		bool	alternativeBand = `false`
	)

protected

Creates a rubber band with the color/line width from the QGIS settings.

The caller takes ownership of the returned object

Parameters

geometryType
alternativeBand	if `true`, rubber band will be set with more transparency and a dash pattern. default is `false`.

Definition at line 64 of file qgsmaptooledit.cpp.

◆ currentVectorLayer()

QgsVectorLayer * QgsMapToolEdit::currentVectorLayer ( )

protected

Returns the current vector layer of the map canvas or 0.

Definition at line 84 of file qgsmaptooledit.cpp.

◆ defaultMValue()

double QgsMapToolEdit::defaultMValue ( )

static

Returns default M value.

Used for setting M coordinate to new vertex.

Since: QGIS 3.20

Definition at line 43 of file qgsmaptooledit.cpp.

◆ defaultZValue()

double QgsMapToolEdit::defaultZValue ( )

static

Returns default Z value.

Used for setting Z coordinate to new vertex.

Definition at line 38 of file qgsmaptooledit.cpp.

◆ digitizingFillColor()

QColor QgsMapToolEdit::digitizingFillColor ( )

staticprotected

Returns fill color for rubber bands (from global settings)

Definition at line 58 of file qgsmaptooledit.cpp.

◆ digitizingStrokeColor()

QColor QgsMapToolEdit::digitizingStrokeColor ( )

staticprotected

Returns stroke color for rubber bands (from global settings)

Definition at line 48 of file qgsmaptooledit.cpp.

◆ digitizingStrokeWidth()

int QgsMapToolEdit::digitizingStrokeWidth ( )

staticprotected

Returns stroke width for rubber bands (from global settings)

Definition at line 53 of file qgsmaptooledit.cpp.

◆ flags()

Flags QgsMapToolEdit::flags ( ) const

inlineoverridevirtual

Returns the flags for the map tool.

Reimplemented from QgsMapTool.

Definition at line 39 of file qgsmaptooledit.h.

◆ notifyNotEditableLayer()

void QgsMapToolEdit::notifyNotEditableLayer ( )

protected

Display a timed message bar noting the active vector layer is not editable.

Definition at line 161 of file qgsmaptooledit.cpp.

◆ notifyNotVectorLayer()

void QgsMapToolEdit::notifyNotVectorLayer ( )

protected

Display a timed message bar noting the active layer is not vector.

Definition at line 156 of file qgsmaptooledit.cpp.

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

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

Public Member Functions

Static Public Member Functions

Protected Types

Protected Member Functions

Static Protected Member Functions

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ TopologicalResult

Constructor & Destructor Documentation

◆ QgsMapToolEdit()

Member Function Documentation

◆ addTopologicalPoints() [1/2]

◆ addTopologicalPoints() [2/2]

◆ createGeometryRubberBand()

◆ createRubberBand()

◆ currentVectorLayer()

◆ defaultMValue()

◆ defaultZValue()

◆ digitizingFillColor()

◆ digitizingStrokeColor()

◆ digitizingStrokeWidth()

◆ flags()

◆ notifyNotEditableLayer()

◆ notifyNotVectorLayer()