QgsGeometryPaintEngine Class Reference

A paint engine which converts everything renderer to a QgsGeometry representation of the rendered shapes. More...

#include <qgsgeometrypaintdevice.h>

Inheritance diagram for QgsGeometryPaintEngine:

Public Member Functions
	QgsGeometryPaintEngine (bool usePathStroker=false)
	Constructor for QgsGeometryPaintEngine.
bool	begin (QPaintDevice *) final
void	drawImage (const QRectF &rectangle, const QImage &image, const QRectF &sr, Qt::ImageConversionFlags flags=Qt::AutoColor) final
void	drawLines (const QLine *lines, int lineCount) final
void	drawLines (const QLineF *lines, int lineCount) final
void	drawPath (const QPainterPath &path) final
void	drawPixmap (const QRectF &, const QPixmap &, const QRectF &) final
void	drawPoints (const QPoint *points, int pointCount) final
void	drawPoints (const QPointF *points, int pointCount) final
void	drawPolygon (const QPoint *points, int pointCount, QPaintEngine::PolygonDrawMode mode) final
void	drawPolygon (const QPointF *points, int pointCount, QPaintEngine::PolygonDrawMode mode) final
void	drawRects (const QRect *rects, int rectCount) final
void	drawRects (const QRectF *rects, int rectCount) final
void	drawTiledPixmap (const QRectF &rect, const QPixmap &pixmap, const QPointF &p) final
bool	end () final
const QgsAbstractGeometry &	geometry () const
	Returns the rendered geometry.
void	setSimplificationTolerance (double tolerance)
	Sets a simplification tolerance (in painter units) to use for on-the-fly simplification of geometries while rendering.
void	setStrokedPathSegments (int segments)
	Sets the number of segments to use when drawing stroked paths with a rounded pen.
QPaintEngine::Type	type () const final
void	updateState (const QPaintEngineState &) final

Detailed Description

A paint engine which converts everything renderer to a QgsGeometry representation of the rendered shapes.

Since

QGIS 3.38

Definition at line 39 of file qgsgeometrypaintdevice.h.

Constructor & Destructor Documentation

QgsGeometryPaintEngine()

QgsGeometryPaintEngine::QgsGeometryPaintEngine

(

bool

usePathStroker = false

)

Constructor for QgsGeometryPaintEngine.

If usePathStroker is true, rendered paths will be converted using a stroke respecting the QPainter pen configuration.

Definition at line 30 of file qgsgeometrypaintdevice.cpp.

Member Function Documentation

begin()

bool QgsGeometryPaintEngine::begin ( QPaintDevice * )

final

Definition at line 46 of file qgsgeometrypaintdevice.cpp.

drawImage()

void QgsGeometryPaintEngine::drawImage ( const QRectF & rectangle, const QImage & image, const QRectF & sr, Qt::ImageConversionFlags flags = Qt::AutoColor )

final

Definition at line 69 of file qgsgeometrypaintdevice.cpp.

drawLines() [1/2]

void QgsGeometryPaintEngine::drawLines ( const QLine * lines, int lineCount )

final

Definition at line 136 of file qgsgeometrypaintdevice.cpp.

drawLines() [2/2]

void QgsGeometryPaintEngine::drawLines ( const QLineF * lines, int lineCount )

final

Definition at line 122 of file qgsgeometrypaintdevice.cpp.

drawPath()

void QgsGeometryPaintEngine::drawPath ( const QPainterPath & path )

final

Definition at line 575 of file qgsgeometrypaintdevice.cpp.

drawPixmap()

void QgsGeometryPaintEngine::drawPixmap ( const QRectF & , const QPixmap & , const QRectF &  )

final

Definition at line 75 of file qgsgeometrypaintdevice.cpp.

drawPoints() [1/2]

void QgsGeometryPaintEngine::drawPoints ( const QPoint * points, int pointCount )

final

Definition at line 183 of file qgsgeometrypaintdevice.cpp.

drawPoints() [2/2]

void QgsGeometryPaintEngine::drawPoints ( const QPointF * points, int pointCount )

final

Definition at line 177 of file qgsgeometrypaintdevice.cpp.

drawPolygon() [1/2]

void QgsGeometryPaintEngine::drawPolygon ( const QPoint * points, int pointCount, QPaintEngine::PolygonDrawMode mode )

final

Definition at line 300 of file qgsgeometrypaintdevice.cpp.

drawPolygon() [2/2]

void QgsGeometryPaintEngine::drawPolygon ( const QPointF * points, int pointCount, QPaintEngine::PolygonDrawMode mode )

final

Definition at line 323 of file qgsgeometrypaintdevice.cpp.

drawRects() [1/2]

void QgsGeometryPaintEngine::drawRects ( const QRect * rects, int rectCount )

final

Definition at line 242 of file qgsgeometrypaintdevice.cpp.

drawRects() [2/2]

void QgsGeometryPaintEngine::drawRects ( const QRectF * rects, int rectCount )

final

Definition at line 236 of file qgsgeometrypaintdevice.cpp.

drawTiledPixmap()

void QgsGeometryPaintEngine::drawTiledPixmap ( const QRectF & rect, const QPixmap & pixmap, const QPointF & p )

final

Definition at line 81 of file qgsgeometrypaintdevice.cpp.

end()

bool QgsGeometryPaintEngine::end ( )

final

Definition at line 51 of file qgsgeometrypaintdevice.cpp.

geometry()

const QgsAbstractGeometry & QgsGeometryPaintEngine::geometry ( ) const

inline

Returns the rendered geometry.

Definition at line 101 of file qgsgeometrypaintdevice.h.

setSimplificationTolerance()

void QgsGeometryPaintEngine::setSimplificationTolerance

(

double

tolerance

)

Sets a simplification tolerance (in painter units) to use for on-the-fly simplification of geometries while rendering.

This will result in simpler, generalised paths.

Set tolerance to 0 to disable simplification. (No simplification is the default behavior).

Definition at line 41 of file qgsgeometrypaintdevice.cpp.

setStrokedPathSegments()

void QgsGeometryPaintEngine::setStrokedPathSegments

(

int

segments

)

Sets the number of segments to use when drawing stroked paths with a rounded pen.

The default is 8 segments, a smaller number will result in simpler paths.

Definition at line 36 of file qgsgeometrypaintdevice.cpp.

type()

QPaintEngine::Type QgsGeometryPaintEngine::type ( ) const

final

Definition at line 56 of file qgsgeometrypaintdevice.cpp.

updateState()

void QgsGeometryPaintEngine::updateState ( const QPaintEngineState & state )

final

Definition at line 61 of file qgsgeometrypaintdevice.cpp.

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

• /build/qgis-3.99.0+git20251205+26c88405ac0+99sid/src/core/painting/qgsgeometrypaintdevice.h
• /build/qgis-3.99.0+git20251205+26c88405ac0+99sid/src/core/painting/qgsgeometrypaintdevice.cpp