/usr/include/qgis/qgsrastertransparency.h is in libqgis-dev 1.7.4+1.7.5~20120320-1.1+b1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | /* **************************************************************************
qgsrastertransparency.h - description
-------------------
begin : Mon Nov 30 2007
copyright : (C) 2007 by Peter J. Ersts
email : ersts@amnh.org
****************************************************************************/
/* **************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSRASTERTRANSPARENCY_H
#define QGSRASTERTRANSPARENCY_H
/** \ingroup core
* Defines the list of pixel values to be considered as transparent or semi
* transparent when rendering rasters.
*/
class CORE_EXPORT QgsRasterTransparency
{
public:
QgsRasterTransparency();
//
// Structs to hold transparent pixel vlaues
//
struct TransparentThreeValuePixel
{
double red;
double green;
double blue;
double percentTransparent;
};
struct TransparentSingleValuePixel
{
double pixelValue;
double percentTransparent;
};
//
// Initializer, Accessor and mutator for transparency tables.
//
/** \brief Mutator for transparentSingleValuePixelList */
QList<QgsRasterTransparency::TransparentSingleValuePixel> transparentSingleValuePixelList() const;
/** \brief Mutator for transparentThreeValuePixelList */
QList<QgsRasterTransparency::TransparentThreeValuePixel> transparentThreeValuePixelList() const;
/** \brief Reset to the transparency list to a single value */
void initializeTransparentPixelList( double );
/** \brief Reset to the transparency list to a single value */
void initializeTransparentPixelList( double, double, double );
/** \brief Accessor for transparentSingleValuePixelList */
void setTransparentSingleValuePixelList( QList<QgsRasterTransparency::TransparentSingleValuePixel> );
/** \brief Accessor for transparentThreeValuePixelList */
void setTransparentThreeValuePixelList( QList<QgsRasterTransparency::TransparentThreeValuePixel> );
/** \brief Returns the transparency value for a single value Pixel */
int alphaValue( double, int theGlobalTransparency = 255 ) const;
/** \brief Return the transparency value for a RGB Pixel */
int alphaValue( double, double, double, int theGlobalTransparency = 255 ) const;
private:
/** \brief The list to hold transparency values for RGB layers */
QList<QgsRasterTransparency::TransparentThreeValuePixel> mTransparentThreeValuePixelList;
/** \brief The lsit to hold transparency values for single value pixel layers */
QList<QgsRasterTransparency::TransparentSingleValuePixel> mTransparentSingleValuePixelList;
};
#endif
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