QgsSingleBandColorDataRenderer Class Reference

Raster renderer pipe for single band color. More...

#include <qgssinglebandcolordatarenderer.h>

Inheritance diagram for QgsSingleBandColorDataRenderer:

Collaboration diagram for QgsSingleBandColorDataRenderer:

List of all members.

Public Member Functions
	QgsSingleBandColorDataRenderer (QgsRasterInterface *input, int band)
	~QgsSingleBandColorDataRenderer ()
QgsRasterBlock *	block (int bandNo, QgsRectangle const &extent, int width, int height)
	Read block of data using given extent and size.
QgsRasterInterface *	clone () const
	Clone itself, create deep copy.
bool	setInput (QgsRasterInterface *input)
	Set input.
QList< int >	usesBands () const
	Returns a list of band numbers used by the renderer.
void	writeXML (QDomDocument &doc, QDomElement &parentElem) const
	Write base class members to xml.
Static Public Member Functions
static QgsRasterRenderer *	create (const QDomElement &elem, QgsRasterInterface *input)
Private Attributes
int	mBand

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Detailed Description

Raster renderer pipe for single band color.

Definition at line 28 of file qgssinglebandcolordatarenderer.h.

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Constructor & Destructor Documentation

QgsSingleBandColorDataRenderer::QgsSingleBandColorDataRenderer	(	QgsRasterInterface *	input,
		int	band
	)

Definition at line 24 of file qgssinglebandcolordatarenderer.cpp.

Referenced by clone(), and create().

QgsSingleBandColorDataRenderer::~QgsSingleBandColorDataRenderer

(

)

Definition at line 30 of file qgssinglebandcolordatarenderer.cpp.

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Member Function Documentation

QgsRasterBlock * QgsSingleBandColorDataRenderer::block	(	int	bandNo,
		QgsRectangle const &	extent,
		int	width,
		int	height
	)		[virtual]

Read block of data using given extent and size.

Returns pointer to data. Caller is responsible to free the memory returned.

Parameters:

bandNo	band number
extent	extent of block
width	pixel width of block
height	pixel height of block

Implements QgsRasterRenderer.

Definition at line 56 of file qgssinglebandcolordatarenderer.cpp.

References QGis::ARGB32_Premultiplied, QgsRasterInterface::block(), QgsRasterBlock::color(), QgsRasterBlock::convert(), QgsRasterBlock::isEmpty(), mBand, QgsRasterInterface::mInput, QgsRasterRenderer::mOpacity, QgsDebugMsg, QgsRasterBlock::reset(), QgsRasterBlock::setColor(), and QgsRasterRenderer::usesTransparency().

QgsRasterInterface * QgsSingleBandColorDataRenderer::clone

(

)

const [virtual]

Clone itself, create deep copy.

Implements QgsRasterRenderer.

Definition at line 34 of file qgssinglebandcolordatarenderer.cpp.

References QgsRasterRenderer::mAlphaBand, mBand, QgsRasterRenderer::mOpacity, QgsRasterRenderer::mRasterTransparency, QgsSingleBandColorDataRenderer(), QgsRasterRenderer::setAlphaBand(), QgsRasterRenderer::setOpacity(), and QgsRasterRenderer::setRasterTransparency().

QgsRasterRenderer * QgsSingleBandColorDataRenderer::create	(	const QDomElement &	elem,
		QgsRasterInterface *	input
	)		[static]

Definition at line 43 of file qgssinglebandcolordatarenderer.cpp.

References QgsSingleBandColorDataRenderer(), and QgsRasterRenderer::readXML().

Referenced by QgsRasterRendererRegistry::QgsRasterRendererRegistry().

bool QgsSingleBandColorDataRenderer::setInput

(

QgsRasterInterface *

input

)

[virtual]

Set input.

Returns true if set correctly, false if cannot use that input

Reimplemented from QgsRasterRenderer.

Definition at line 126 of file qgssinglebandcolordatarenderer.cpp.

References QGis::ARGB32, QGis::ARGB32_Premultiplied, QgsRasterInterface::dataType(), QgsRasterInterface::input(), QgsRasterInterface::mInput, and QgsRasterInterface::mOn.

QList< int > QgsSingleBandColorDataRenderer::usesBands

(

)

const [virtual]

Returns a list of band numbers used by the renderer.

Reimplemented from QgsRasterRenderer.

Definition at line 116 of file qgssinglebandcolordatarenderer.cpp.

References mBand.

void QgsSingleBandColorDataRenderer::writeXML	(	QDomDocument &	doc,
		QDomElement &	parentElem
	)		const [virtual]

Write base class members to xml.

Reimplemented from QgsRasterInterface.

Definition at line 103 of file qgssinglebandcolordatarenderer.cpp.

References QgsRasterRenderer::_writeXML(), and mBand.

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Member Data Documentation

int QgsSingleBandColorDataRenderer::mBand [private]

Definition at line 46 of file qgssinglebandcolordatarenderer.h.

Referenced by block(), clone(), usesBands(), and writeXML().

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

• src/core/raster/qgssinglebandcolordatarenderer.h
• src/core/raster/qgssinglebandcolordatarenderer.cpp