kpixmapio.h

/*
 *
 *
 * This file is part of the KDE project, module tdeui.
 * Copyright (C) 2000 Geert Jansen <jansen@kde.org>
 *
 * You can Freely distribute this program under the GNU Library General
 * Public License. See the file "COPYING.LIB" for the exact licensing terms.
 */
 
#ifndef __KPixmapIO_h_Included__
#define __KPixmapIO_h_Included__
 
#include <tdelibs_export.h>
 
class TQPixmap;
class TQImage;
class TQPoint;
class TQRect;
struct KPixmapIOPrivate;
 
class TDEUI_EXPORT KPixmapIO
{
public:
    KPixmapIO();
    ~KPixmapIO();

    TQPixmap convertToPixmap(const TQImage &image);

    TQImage convertToImage(const TQPixmap &pixmap);

    void putImage(TQPixmap *dst, int dx, int dy, const TQImage *src);

    void putImage(TQPixmap *dst, const TQPoint &offset, const TQImage *src);

    TQImage getImage(const TQPixmap *src, int sx, int sy, int sw, int sh);

    TQImage getImage(const TQPixmap *src, const TQRect &rect);

    enum ShmPolicies {
    ShmDontKeep,
    ShmKeepAndGrow
    };

    void setShmPolicy(int policy);

    void preAllocShm(int size);
 
private:
    /*
     * Supported XImage byte orders. The notation ARGB means bytes
     * containing A:R:G:B succeed in memory.
     */
    enum ByteOrders {
    bo32_ARGB, bo32_BGRA, bo24_RGB, bo24_BGR,
    bo16_RGB_565, bo16_BGR_565, bo16_RGB_555,
    bo16_BGR_555, bo8
    };
 
    bool m_bShm;
    bool initXImage(int w, int h);
    void doneXImage();
    bool createXImage(int w, int h);
    void destroyXImage();
    bool createShmSegment(int size);
    void destroyShmSegment();
    void convertToXImage(const TQImage &);
    TQImage convertFromXImage();
private:
    KPixmapIOPrivate* d;
};
 
#endif // __KPixmapIO_h_Included__