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This is the verbatim text of the qpixmap.h include file. It is provided only for illustration; the copyright remains with Trolltech.
/****************************************************************************
** $Id: qt/qpixmap.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of TQPixmap class
**
** Created : 940501
**
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
**
** This file is part of the kernel module of the TQt GUI Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Alternatively you may (at your option) use any
** later version of the GNU General Public License if such license has
** been publicly approved by Trolltech ASA (or its successors, if any)
** and the KDE Free TQt Foundation.
**
** Please review the following information to ensure GNU General
** Public Licensing requirements will be met:
** http://trolltech.com/products/qt/licenses/licensing/opensource/.
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
** or contact the sales department at sales@trolltech.com.
**
** This file may be used under the terms of the Q Public License as
** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
** included in the packaging of this file. Licensees holding valid TQt
** Commercial licenses may use this file in accordance with the TQt
** Commercial License Agreement provided with the Software.
**
** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
** herein.
**
**********************************************************************/
#ifndef TQPIXMAP_H
#define TQPIXMAP_H
#ifndef QT_H
#include "qpaintdevice.h"
#include "qcolor.h" // char*->TQColor conversion
#include "qstring.h" // char*->TQString conversion
#include "qnamespace.h"
#endif // QT_H
class TQGfx;
class TQPixmapPrivate;
#if defined(Q_WS_WIN)
// Internal pixmap memory optimization class for Windows 9x
class TQMultiCellPixmap;
#endif
class Q_EXPORT TQPixmap : public TQPaintDevice, public TQt
{
public:
enum ColorMode { Auto, Color, Mono };
enum Optimization { DefaultOptim, NoOptim, MemoryOptim=NoOptim,
NormalOptim, BestOptim };
TQPixmap();
TQPixmap( const TQImage& image );
TQPixmap( int w, int h, int depth = -1, Optimization = DefaultOptim );
TQPixmap( const TQSize &, int depth = -1, Optimization = DefaultOptim );
#ifndef QT_NO_IMAGEIO
TQPixmap( const TQString& fileName, const char *format=0,
ColorMode mode=Auto );
TQPixmap( const TQString& fileName, const char *format,
int conversion_flags );
TQPixmap( const char *xpm[] ); // ### in 4.0, 'const char * const xpm[]'?
TQPixmap( const TQByteArray &data );
#endif
TQPixmap( const TQPixmap & );
~TQPixmap();
TQPixmap &operator=( const TQPixmap & );
TQPixmap &operator=( const TQImage & );
bool isNull() const;
int width() const { return data->w; }
int height() const { return data->h; }
TQSize size() const { return TQSize(data->w,data->h); }
TQRect rect() const { return TQRect(0,0,data->w,data->h); }
int depth() const { return data->d; }
static int defaultDepth();
void fill( const TQColor &fillColor = TQt::white );
void fill( const TQWidget *, int xofs, int yofs );
void fill( const TQWidget *, const TQPoint &ofs );
void resize( int width, int height );
void resize( const TQSize & );
const TQBitmap *mask() const;
void setMask( const TQBitmap & );
bool selfMask() const;
bool hasAlpha() const;
bool hasAlphaChannel() const;
#ifndef QT_NO_IMAGE_HEURISTIC_MASK
TQBitmap createHeuristicMask( bool clipTight = TRUE ) const;
#endif
#ifndef QT_NO_MIME
static TQPixmap fromMimeSource( const TQString& abs_name );
#endif
static TQPixmap grabWindow( WId, int x=0, int y=0, int w=-1, int h=-1 );
static TQPixmap grabWidget( TQWidget * widget,
int x=0, int y=0, int w=-1, int h=-1 );
#ifndef QT_NO_PIXMAP_TRANSFORMATION
TQPixmap xForm( const TQWMatrix & ) const;
static TQWMatrix trueMatrix( const TQWMatrix &, int w, int h );
#endif
TQImage convertToImage() const;
bool convertFromImage( const TQImage &, ColorMode mode=Auto );
bool convertFromImage( const TQImage &, int conversion_flags );
#ifndef QT_NO_IMAGEIO
static const char* imageFormat( const TQString &fileName );
bool load( const TQString& fileName, const char *format=0,
ColorMode mode=Auto );
bool load( const TQString& fileName, const char *format,
int conversion_flags );
bool loadFromData( const uchar *buf, uint len,
const char* format=0,
ColorMode mode=Auto );
bool loadFromData( const uchar *buf, uint len,
const char* format,
int conversion_flags );
bool loadFromData( const TQByteArray &data,
const char* format=0,
int conversion_flags=0 );
bool save( const TQString& fileName, const char* format, int quality = -1 ) const;
bool save( TQIODevice* device, const char* format, int quality = -1 ) const;
#endif
#if defined(Q_WS_WIN)
HBITMAP hbm() const;
#endif
int serialNumber() const;
Optimization optimization() const;
void setOptimization( Optimization );
static Optimization defaultOptimization();
static void setDefaultOptimization( Optimization );
virtual void detach();
bool isTQBitmap() const;
#if defined(Q_WS_WIN)
// These functions are internal and used by Windows 9x only
bool isMultiCellPixmap() const;
HDC multiCellHandle() const;
HBITMAP multiCellBitmap() const;
int multiCellOffset() const;
int allocCell();
void freeCell( bool = FALSE );
#endif
#if defined(Q_WS_QWS)
virtual TQGfx * graphicsContext(bool clip_children=TRUE) const;
virtual unsigned char * scanLine(int) const;
virtual int bytesPerLine() const;
TQRgb * clut() const;
int numCols() const;
#elif defined(Q_WS_X11)
static int x11SetDefaultScreen( int screen );
void x11SetScreen( int screen );
#endif
#ifndef Q_QDOC
Q_DUMMY_COMPARISON_OPERATOR(TQPixmap)
#endif
protected:
TQPixmap( int w, int h, const uchar *data, bool isXbitmap );
int metric( int ) const;
#if defined(Q_WS_WIN)
struct TQMCPI { // mem optim for win9x
TQMultiCellPixmap *mcp;
int offset;
};
#endif
struct TQPixmapData : public TQShared { // internal pixmap data
TQCOORD w, h;
short d;
uint uninit : 1;
uint bitmap : 1;
uint selfmask : 1;
#if defined(Q_WS_WIN)
uint mcp : 1;
#endif
int ser_no;
TQBitmap *mask;
#if defined(Q_WS_WIN)
TQPixmap *maskpm;
union {
HBITMAP hbm; // if mcp == FALSE
TQMCPI *mcpi; // if mcp == TRUE
} hbm_or_mcpi;
uchar *realAlphaBits;
#ifdef Q_OS_TEMP
uchar* ppvBits; // Pointer to DIBSection bits
#endif
#elif defined(Q_WS_X11)
void *ximage;
void *maskgc;
TQPixmap *alphapm;
#elif defined(Q_WS_MAC)
ColorTable *clut;
TQPixmap *alphapm;
#elif defined(Q_WS_QWS)
int id; // ### should use TQPaintDevice::hd, since it is there
TQRgb * clut;
int numcols;
int rw;
int rh;
bool hasAlpha;
#endif
Optimization optim;
#if defined(Q_WS_WIN)
HBITMAP old_hbm;
#endif
} *data;
private:
#ifndef QT_NO_IMAGEIO
bool doImageIO( TQImageIO* io, int quality ) const;
#endif
TQPixmap( int w, int h, int depth, bool, Optimization );
void init( int, int, int, bool, Optimization );
void deref();
TQPixmap copy( bool ignoreMask = FALSE ) const;
#if defined(Q_WS_WIN)
void initAlphaPixmap( uchar *bytes, int length, struct tagBITMAPINFO *bmi );
void convertToAlphaPixmap( bool initAlpha=TRUE );
static void bitBltAlphaPixmap( TQPixmap *dst, int dx, int dy,
const TQPixmap *src, int sx, int sy,
int sw, int sh, bool useDstAlpha );
#endif
static Optimization defOptim;
friend Q_EXPORT void bitBlt( TQPaintDevice *, int, int,
const TQPaintDevice *,
int, int, int, int, RasterOp, bool );
friend Q_EXPORT void bitBlt( TQPaintDevice *, int, int,
const TQImage* src,
int, int, int, int, int conversion_flags );
friend Q_EXPORT void copyBlt( TQPixmap *dst, int dx, int dy,
const TQPixmap *src, int sx, int sy,
int sw, int sh );
#if defined(Q_WS_MAC)
friend void unclippedScaledBitBlt(TQPaintDevice *, int, int, int, int,
const TQPaintDevice *, int, int, int, int,
TQt::RasterOp, bool, bool);
#endif
friend class TQBitmap;
friend class TQPaintDevice;
friend class TQPainter;
friend class TQGLWidget;
};
inline bool TQPixmap::isNull() const
{
return data->w == 0;
}
inline void TQPixmap::fill( const TQWidget *w, const TQPoint &ofs )
{
fill( w, ofs.x(), ofs.y() );
}
inline void TQPixmap::resize( const TQSize &s )
{
resize( s.width(), s.height() );
}
inline const TQBitmap *TQPixmap::mask() const
{
return data->mask;
}
inline bool TQPixmap::selfMask() const
{
return data->selfmask;
}
#if defined(Q_WS_WIN)
inline HBITMAP TQPixmap::hbm() const
{
return data->mcp ? 0 : data->hbm_or_mcpi.hbm;
}
#endif
inline int TQPixmap::serialNumber() const
{
return data->ser_no;
}
inline TQPixmap::Optimization TQPixmap::optimization() const
{
return data->optim;
}
inline bool TQPixmap::isTQBitmap() const
{
return data->bitmap;
}
#if defined(Q_WS_WIN)
inline bool TQPixmap::isMultiCellPixmap() const
{
return data->mcp;
}
#endif
/*****************************************************************************
TQPixmap stream functions
*****************************************************************************/
#if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
Q_EXPORT TQDataStream &operator<<( TQDataStream &, const TQPixmap & );
Q_EXPORT TQDataStream &operator>>( TQDataStream &, TQPixmap & );
#endif
/*****************************************************************************
TQPixmap (and TQImage) helper functions
*****************************************************************************/
#ifndef QT_NO_PIXMAP_TRANSFORMATION
# define QT_XFORM_TYPE_MSBFIRST 0
# define QT_XFORM_TYPE_LSBFIRST 1
# if defined(Q_WS_WIN)
# define QT_XFORM_TYPE_WINDOWSPIXMAP 2
# endif
bool qt_xForm_helper( const TQWMatrix&, int, int, int, uchar*, int, int, int, uchar*, int, int, int );
#endif
Q_EXPORT void copyBlt( TQPixmap *dst, int dx, int dy,
const TQPixmap *src, int sx = 0, int sy = 0,
int sw = -1, int sh = -1 );
#endif // TQPIXMAP_H
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