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src/qt/src/opengl/qglcolormap.h
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00001 /****************************************************************************
00002 ** $Id: qt/qglcolormap.h   3.3.8   edited Jan 11 14:38 $
00003 **
00004 ** Definition of QGLColormap class
00005 **
00006 ** Created : 20010326
00007 **
00008 ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
00009 **
00010 ** This file is part of the opengl module of the Qt GUI Toolkit.
00011 **
00012 ** This file may be distributed under the terms of the Q Public License
00013 ** as defined by Trolltech ASA of Norway and appearing in the file
00014 ** LICENSE.QPL included in the packaging of this file.
00015 **
00016 ** This file may be distributed and/or modified under the terms of the
00017 ** GNU General Public License version 2 as published by the Free Software
00018 ** Foundation and appearing in the file LICENSE.GPL included in the
00019 ** packaging of this file.
00020 **
00021 ** Licensees holding valid Qt Enterprise Edition licenses may use this
00022 ** file in accordance with the Qt Commercial License Agreement provided
00023 ** with the Software.
00024 **
00025 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
00026 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
00027 **
00028 ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
00029 **   information about Qt Commercial License Agreements.
00030 ** See http://www.trolltech.com/qpl/ for QPL licensing information.
00031 ** See http://www.trolltech.com/gpl/ for GPL licensing information.
00032 **
00033 ** Contact info@trolltech.com if any conditions of this licensing are
00034 ** not clear to you.
00035 **
00036 **********************************************************************/
00037 
00038 #ifndef QGLCOLORMAP_H
00039 #define QGLCOLORMAP_H
00040 
00041 #ifndef QT_H
00042 #include "qcolor.h"
00043 #include "qmemarray.h"
00044 #include "qshared.h"
00045 #endif // QT_H
00046 
00047 #if !defined( QT_MODULE_OPENGL ) || defined( QT_LICENSE_PROFESSIONAL )
00048 #define QM_EXPORT_OPENGL
00049 #else
00050 #define QM_EXPORT_OPENGL Q_EXPORT
00051 #endif
00052 
00053 class QWidget;
00054 class QM_EXPORT_OPENGL QGLColormap
00055 {
00056 public:
00057     QGLColormap();
00058     QGLColormap( const QGLColormap & );
00059     ~QGLColormap();
00060     
00061     QGLColormap &operator=( const QGLColormap & );
00062     
00063     bool   isEmpty() const;
00064     int    size() const;
00065     void   detach();
00066 
00067     void   setEntries( int count, const QRgb * colors, int base = 0 );
00068     void   setEntry( int idx, QRgb color );
00069     void   setEntry( int idx, const QColor & color );
00070     QRgb   entryRgb( int idx ) const;
00071     QColor entryColor( int idx ) const;
00072     int    find( QRgb color ) const;
00073     int    findNearest( QRgb color ) const;
00074     
00075 private:
00076     class Private : public QShared
00077     {
00078     public:
00079         Private() {
00080             cells.resize( 256 ); // ### hardcoded to 256 entries for now
00081             cmapHandle = 0;
00082         }
00083 
00084         ~Private() {
00085         }
00086 
00087         QMemArray<QRgb> cells;
00088         Qt::HANDLE      cmapHandle;
00089     };
00090     
00091     Private * d;
00092 
00093     friend class QGLWidget;
00094 };
00095 
00096 #endif
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