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63 lines
2.0 KiB
Plaintext
63 lines
2.0 KiB
Plaintext
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class QgsRasterTransparency
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{
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%TypeHeaderCode
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#include <qgsrastertransparency.h>
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%End
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public:
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QgsRasterTransparency();
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//
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// Structs to hold transparent pixel vlaues
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//
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struct TransparentThreeValuePixel
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{
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double red;
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double green;
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double blue;
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double percentTransparent;
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};
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struct TransparentSingleValuePixel
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{
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double min;
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double max;
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double percentTransparent;
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};
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//
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// Initializer, Accessor and mutator for transparency tables.
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//
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/** \brief Accessor for transparentSingleValuePixelList */
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QList<QgsRasterTransparency::TransparentSingleValuePixel> transparentSingleValuePixelList() const;
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/** \brief Accessor for transparentThreeValuePixelList */
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QList<QgsRasterTransparency::TransparentThreeValuePixel> transparentThreeValuePixelList() const;
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/** \brief Reset to the transparency list to a single value */
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void initializeTransparentPixelList( double );
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/** \brief Reset to the transparency list to a single value */
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void initializeTransparentPixelList( double, double, double );
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/** \brief Mutator for transparentSingleValuePixelList */
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void setTransparentSingleValuePixelList( const QList<QgsRasterTransparency::TransparentSingleValuePixel>& /Transfer/);
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/** \brief Mutator for transparentThreeValuePixelList */
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void setTransparentThreeValuePixelList( const QList<QgsRasterTransparency::TransparentThreeValuePixel>& /Transfer/);
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/** \brief Returns the transparency value for a single value Pixel */
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int alphaValue( double, int globalTransparency = 255 ) const;
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/** \brief Return the transparency value for a RGB Pixel */
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int alphaValue( double, double, double, int globalTransparency = 255 ) const;
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/** True if there are no entries in the pixel lists except the nodata value*/
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bool isEmpty() const;
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void writeXml( QDomDocument &doc, QDomElement &parentElem ) const;
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void readXml( const QDomElement &elem );
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};
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