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class QgsRasterRenderer : QgsRasterInterface
{
%TypeHeaderCode
#include "qgsrasterrenderer.h"
%End
public:
// Origin of min / max values
enum MinMaxOrigin
{
MinMaxUnknown,
MinMaxUser, // entered by user
// method
MinMaxMinMax,
MinMaxCumulativeCut,
MinMaxStdDev,
// Extent
MinMaxFullExtent,
MinMaxSubExtent,
// Precision
MinMaxEstimated,
MinMaxExact
};
static const QRgb NODATA_COLOR;
QgsRasterRenderer( QgsRasterInterface* input = 0, const QString& type = "" );
virtual ~QgsRasterRenderer();
virtual QgsRasterRenderer * clone() const = 0 /Factory/;
virtual int bandCount() const;
virtual QGis::DataType dataType( int bandNo ) const;
virtual QString type() const;
virtual bool setInput( QgsRasterInterface* input );
bool usesTransparency() const;
void setOpacity( double opacity );
double opacity() const;
void setRasterTransparency( QgsRasterTransparency* t /Transfer/);
const QgsRasterTransparency* rasterTransparency() const;
void setAlphaBand( int band );
int alphaBand() const;
/** Get symbology items if provided by renderer*/
virtual void legendSymbologyItems( QList< QPair< QString, QColor > >& symbolItems ) const;
/** Sets base class members from xml. Usually called from create() methods of subclasses*/
void readXML( const QDomElement& rendererElem );
/** Copies common properties like opacity / transparency data from other renderer.
* Useful when cloning renderers.
* @note added in 2.16 */
void copyCommonProperties( const QgsRasterRenderer* other );
/** Returns a list of band numbers used by the renderer*/
virtual QList<int> usesBands() const;
static QString minMaxOriginName( int theOrigin );
static QString minMaxOriginLabel( int theOrigin );
static int minMaxOriginFromName( const QString& theName );
protected:
/** Write upper class info into rasterrenderer element (called by writeXML method of subclasses)*/
void _writeXML( QDomDocument& doc, QDomElement& rasterRendererElem ) const;
private:
QgsRasterRenderer( const QgsRasterRenderer& );
const QgsRasterRenderer& operator=( const QgsRasterRenderer& );
};
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