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 37 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 133 of file qgsgeometrypaintdevice.cpp.

drawLines() [2/2]

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

final

Definition at line 119 of file qgsgeometrypaintdevice.cpp.

drawPath()

void QgsGeometryPaintEngine::drawPath ( const QPainterPath &  path )

final

Definition at line 608 of file qgsgeometrypaintdevice.cpp.

drawPixmap()

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

final

Definition at line 74 of file qgsgeometrypaintdevice.cpp.

drawPoints() [1/2]

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

final

Definition at line 180 of file qgsgeometrypaintdevice.cpp.

drawPoints() [2/2]

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

final

Definition at line 174 of file qgsgeometrypaintdevice.cpp.

drawPolygon() [1/2]

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

final

Definition at line 297 of file qgsgeometrypaintdevice.cpp.

drawPolygon() [2/2]

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

final

Definition at line 320 of file qgsgeometrypaintdevice.cpp.

drawRects() [1/2]

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

final

Definition at line 239 of file qgsgeometrypaintdevice.cpp.

drawRects() [2/2]

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

final

Definition at line 233 of file qgsgeometrypaintdevice.cpp.

drawTiledPixmap()

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

final

Definition at line 79 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 99 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.

---

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

• /home/fischer/src/qgis-3.38/src/core/painting/qgsgeometrypaintdevice.h
• /home/fischer/src/qgis-3.38/src/core/painting/qgsgeometrypaintdevice.cpp