/usr/include/qgis/qgsrastershaderfunction.h is in libqgis-dev 2.8.6+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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qgsrastershaderfunction.h - description
-------------------
begin : Fri Dec 28 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 QGSRASTERSHADERFUNCTION_H
#define QGSRASTERSHADERFUNCTION_H
/** \ingroup core
* The raster shade function applies a shader to a pixel at render time -
* typically used to render grayscale images as false color.
*/
#include <QColor>
#include <QPair>
class CORE_EXPORT QgsRasterShaderFunction
{
public:
QgsRasterShaderFunction( double theMinimumValue = 0.0, double theMaximumValue = 255.0 );
virtual ~QgsRasterShaderFunction() {}
/** \brief Set the maximum value */
virtual void setMaximumValue( double );
/** \brief Return the minimum value */
virtual void setMinimumValue( double );
/** \brief generates and new RGBA value based on one input value */
virtual bool shade( double, int*, int*, int*, int* );
/** \brief generates and new RGBA value based on original RGBA value */
virtual bool shade( double, double, double, double, int*, int*, int*, int* );
double minimumMaximumRange() const { return mMinimumMaximumRange; }
double minimumValue() const { return mMinimumValue; }
double maximumValue() const { return mMaximumValue; }
virtual void legendSymbologyItems( QList< QPair< QString, QColor > >& symbolItems ) const { Q_UNUSED( symbolItems ); }
protected:
/** \brief User defineable maximum value for the shading function */
double mMaximumValue;
/** \brief User defineable minimum value for the shading function */
double mMinimumValue;
/** \brief Minimum maximum range for the shading function */
double mMinimumMaximumRange;
};
#endif
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