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

#include <qgssinglebandcolordatarenderer.h>

Inheritance diagram for QgsSingleBandColorDataRenderer:

Collaboration diagram for QgsSingleBandColorDataRenderer:

Public Member Functions
	QgsSingleBandColorDataRenderer (QgsRasterInterface *input, int band)

	~QgsSingleBandColorDataRenderer ()

QgsRasterInterface *	clone () const
	Clone itself, create deep copy. More...

bool	setInput (QgsRasterInterface *input)
	Set input. More...

QgsRasterBlock *	block (int bandNo, const QgsRectangle &extent, int width, int height)
	Read block of data using given extent and size. More...

void	writeXML (QDomDocument &doc, QDomElement &parentElem) const
	Write base class members to xml. More...

QList< int >	usesBands () const
	Returns a list of band numbers used by the renderer. More...

Public Member Functions inherited from QgsRasterRenderer
	QgsRasterRenderer (QgsRasterInterface *input=0, const QString &type="")

virtual	~QgsRasterRenderer ()

virtual int	bandCount () const
	Get number of bands. More...

virtual QGis::DataType	dataType (int bandNo) const
	Returns data type for the band specified by number. More...

virtual QString	type () const

bool	usesTransparency () const

void	setOpacity (double opacity)

double	opacity () const

void	setRasterTransparency (QgsRasterTransparency *t)

const QgsRasterTransparency *	rasterTransparency () const

void	setAlphaBand (int band)

int	alphaBand () const

virtual void	legendSymbologyItems (QList< QPair< QString, QColor > > &symbolItems) const
	Get symbology items if provided by renderer. More...

void	readXML (const QDomElement &rendererElem)
	Sets base class members from xml. More...

Public Member Functions inherited from QgsRasterInterface
	QgsRasterInterface (QgsRasterInterface *input=0)

virtual	~QgsRasterInterface ()

virtual int	capabilities () const
	Returns a bitmask containing the supported capabilities. More...

QString	capabilitiesString () const
	Returns the above in friendly format. More...

virtual QGis::DataType	srcDataType (int bandNo) const
	Returns source data type for the band specified by number, source data type may be shorter than dataType. More...

virtual QgsRectangle	extent ()
	Get the extent of the interface. More...

int	dataTypeSize (int bandNo)

virtual int	xBlockSize () const
	Get block size. More...

virtual int	yBlockSize () const

virtual int	xSize () const
	Get raster size. More...

virtual int	ySize () const

virtual QString	generateBandName (int theBandNumber) const
	helper function to create zero padded band names More...

virtual QgsRasterInterface *	input () const
	Current input. More...

virtual bool	on () const
	Is on/off. More...

virtual void	setOn (bool on)
	Set on/off. More...

virtual const QgsRasterInterface *	srcInput () const
	Get source / raw input, the first in pipe, usually provider. More...

virtual QgsRasterInterface *	srcInput ()

virtual QgsRasterBandStats	bandStatistics (int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0)
	Get band statistics. More...

virtual bool	hasStatistics (int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0)
	Returns true if histogram is available (cached, already calculated). More...

virtual QgsRasterHistogram	histogram (int theBandNo, int theBinCount=0, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false)
	Get histogram. More...

virtual bool	hasHistogram (int theBandNo, int theBinCount, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false)
	Returns true if histogram is available (cached, already calculated), the parameters are the same as in histogram() More...

virtual void	cumulativeCut (int theBandNo, double theLowerCount, double theUpperCount, double &theLowerValue, double &theUpperValue, const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0)
	Find values for cumulative pixel count cut. More...

Static Public Member Functions
static QgsRasterRenderer *	create (const QDomElement &elem, QgsRasterInterface *input)

Static Public Member Functions inherited from QgsRasterRenderer
static QString	minMaxOriginName (int theOrigin)

static QString	minMaxOriginLabel (int theOrigin)

static int	minMaxOriginFromName (QString theName)

Private Attributes
int	mBand

Additional Inherited Members
Public Types inherited from QgsRasterRenderer
enum	MinMaxOrigin { MinMaxUnknown = 0, MinMaxUser = 1, MinMaxMinMax = 1 << 1, MinMaxCumulativeCut = 1 << 2, MinMaxStdDev = 1 << 3, MinMaxFullExtent = 1 << 4, MinMaxSubExtent = 1 << 5, MinMaxEstimated = 1 << 6, MinMaxExact = 1 << 7 }

Public Types inherited from QgsRasterInterface
enum	Capability { NoCapabilities = 0, Size = 1 << 1, Create = 1 << 2, Remove = 1 << 3, BuildPyramids = 1 << 4, Identify = 1 << 5, IdentifyValue = 1 << 6, IdentifyText = 1 << 7, IdentifyHtml = 1 << 8, IdentifyFeature = 1 << 9 }
	If you add to this, please also add to capabilitiesString() More...

Static Public Attributes inherited from QgsRasterRenderer
static const QRgb	NODATA_COLOR = qRgba( 0, 0, 0, 0 )

Protected Member Functions inherited from QgsRasterRenderer
void	_writeXML (QDomDocument &doc, QDomElement &rasterRendererElem) const
	Write upper class info into rasterrenderer element (called by writeXML method of subclasses) More...

Protected Member Functions inherited from QgsRasterInterface
void	initHistogram (QgsRasterHistogram &theHistogram, int theBandNo, int theBinCount=0, double theMinimum=std::numeric_limits< double >::quiet_NaN(), double theMaximum=std::numeric_limits< double >::quiet_NaN(), const QgsRectangle &theExtent=QgsRectangle(), int theSampleSize=0, bool theIncludeOutOfRange=false)
	Fill in histogram defaults if not specified. More...

void	initStatistics (QgsRasterBandStats &theStatistics, int theBandNo, int theStats=QgsRasterBandStats::All, const QgsRectangle &theExtent=QgsRectangle(), int theBinCount=0)
	Fill in statistics defaults if not specified. More...

Protected Attributes inherited from QgsRasterRenderer
QString	mType

double	mOpacity
	Global alpha value (0-1) More...

QgsRasterTransparency *	mRasterTransparency
	Raster transparency per color or value. More...

int	mAlphaBand
	Read alpha value from band. More...

Protected Attributes inherited from QgsRasterInterface
QgsRasterInterface *	mInput

QList< QgsRasterBandStats >	mStatistics
	List of cached statistics, all bands mixed. More...

QList< QgsRasterHistogram >	mHistograms
	List of cached histograms, all bands mixed. More...

bool	mOn

Detailed Description

Raster renderer pipe for single band color.

Definition at line 28 of file qgssinglebandcolordatarenderer.h.

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.

Member Function Documentation

QgsRasterBlock * QgsSingleBandColorDataRenderer::block	(	int	bandNo,
		const QgsRectangle &	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 123 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 113 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 102 of file qgssinglebandcolordatarenderer.cpp.

References QgsRasterRenderer::_writeXML(), and mBand.

Member Data Documentation

int QgsSingleBandColorDataRenderer::mBand

private

Definition at line 46 of file qgssinglebandcolordatarenderer.h.

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

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

/tmp/buildd/qgis-2.4.0+unstable1/src/core/raster/qgssinglebandcolordatarenderer.h
/tmp/buildd/qgis-2.4.0+unstable1/src/core/raster/qgssinglebandcolordatarenderer.cpp

Public Member Functions

Static Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation