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This is the verbatim text of the qimage.h include file. It is provided only for illustration; the copyright remains with Trolltech.
/****************************************************************************
** $Id: qt/qimage.h 3.3.8 edited Jan 11 14:38 $
**
** Definition of TQImage and TQImageIO classes
**
** Created : 950207
**
** 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 retquirements 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 TQIMAGE_H
#define TQIMAGE_H
#ifndef QT_H
#include "qpixmap.h"
#include "qstrlist.h"
#include "qstringlist.h"
#endif // QT_H
class TQImageDataMisc; // internal
#ifndef QT_NO_IMAGE_TEXT
class Q_EXPORT TQImageTextKeyLang {
public:
TQImageTextKeyLang(const char* k, const char* l) : key(k), lang(l) { }
TQImageTextKeyLang() { }
TQCString key;
TQCString lang;
bool operator< (const TQImageTextKeyLang& other) const
{ return key < other.key || key==other.key && lang < other.lang; }
bool operator== (const TQImageTextKeyLang& other) const
{ return key==other.key && lang==other.lang; }
};
#endif //QT_NO_IMAGE_TEXT
class Q_EXPORT TQImage
{
public:
enum Endian { IgnoreEndian, BigEndian, LittleEndian };
TQImage();
TQImage( int width, int height, int depth, int numColors=0,
Endian bitOrder=IgnoreEndian );
TQImage( const TQSize&, int depth, int numColors=0,
Endian bitOrder=IgnoreEndian );
#ifndef QT_NO_IMAGEIO
TQImage( const TQString &fileName, const char* format=0 );
TQImage( const char * const xpm[] );
TQImage( const TQByteArray &data );
#endif
TQImage( uchar* data, int w, int h, int depth,
TQRgb* colortable, int numColors,
Endian bitOrder );
#ifdef Q_WS_QWS
TQImage( uchar* data, int w, int h, int depth, int pbl,
TQRgb* colortable, int numColors,
Endian bitOrder );
#endif
TQImage( const TQImage & );
~TQImage();
TQImage &operator=( const TQImage & );
TQImage &operator=( const TQPixmap & );
bool operator==( const TQImage & ) const;
bool operator!=( const TQImage & ) const;
void detach();
TQImage copy() const;
TQImage copy(int x, int y, int w, int h, int conversion_flags=0) const;
TQImage copy(const TQRect&) const;
#ifndef QT_NO_MIME
static TQImage fromMimeSource( const TQString& abs_name );
#endif
bool isNull() const { return data->bits == 0; }
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; }
int numColors() const { return data->ncols; }
Endian bitOrder() const { return (Endian) data->bitordr; }
TQRgb color( int i ) const;
void setColor( int i, TQRgb c );
void setNumColors( int );
bool hasAlphaBuffer() const;
void setAlphaBuffer( bool );
bool allGray() const;
bool isGrayscale() const;
uchar *bits() const;
uchar *scanLine( int ) const;
uchar **jumpTable() const;
TQRgb *colorTable() const;
int numBytes() const;
int bytesPerLine() const;
#ifdef Q_WS_QWS
TQGfx * graphicsContext();
#endif
bool create( int width, int height, int depth, int numColors=0,
Endian bitOrder=IgnoreEndian );
bool create( const TQSize&, int depth, int numColors=0,
Endian bitOrder=IgnoreEndian );
void reset();
void fill( uint pixel );
void invertPixels( bool invertAlpha = TRUE );
TQImage convertDepth( int ) const;
#ifndef QT_NO_IMAGE_TRUECOLOR
TQImage convertDepthWithPalette( int, TQRgb* p, int pc, int cf=0 ) const;
#endif
TQImage convertDepth( int, int conversion_flags ) const;
TQImage convertBitOrder( Endian ) const;
enum ScaleMode {
ScaleFree,
ScaleMin,
ScaleMax
};
#ifndef QT_NO_IMAGE_SMOOTHSCALE
TQImage smoothScale( int w, int h, ScaleMode mode=ScaleFree ) const;
TQImage smoothScale( const TQSize& s, ScaleMode mode=ScaleFree ) const;
#endif
#ifndef QT_NO_IMAGE_TRANSFORMATION
TQImage scale( int w, int h, ScaleMode mode=ScaleFree ) const;
TQImage scale( const TQSize& s, ScaleMode mode=ScaleFree ) const;
TQImage scaleWidth( int w ) const;
TQImage scaleHeight( int h ) const;
TQImage xForm( const TQWMatrix &matrix ) const;
#endif
#ifndef QT_NO_IMAGE_DITHER_TO_1
TQImage createAlphaMask( int conversion_flags=0 ) const;
#endif
#ifndef QT_NO_IMAGE_HEURISTIC_MASK
TQImage createHeuristicMask( bool clipTight=TRUE ) const;
#endif
#ifndef QT_NO_IMAGE_MIRROR
TQImage mirror() const;
TQImage mirror(bool horizontally, bool vertically) const;
#endif
TQImage swapRGB() const;
static Endian systemBitOrder();
static Endian systemByteOrder();
#ifndef QT_NO_IMAGEIO
static const char* imageFormat( const TQString &fileName );
static TQStrList inputFormats();
static TQStrList outputFormats();
#ifndef QT_NO_STRINGLIST
static TQStringList inputFormatList();
static TQStringList outputFormatList();
#endif
bool load( const TQString &fileName, const char* format=0 );
bool loadFromData( const uchar *buf, uint len,
const char *format=0 );
bool loadFromData( TQByteArray data, const char* format=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 //QT_NO_IMAGEIO
bool valid( int x, int y ) const;
int pixelIndex( int x, int y ) const;
TQRgb pixel( int x, int y ) const;
void setPixel( int x, int y, uint index_or_rgb );
// Auxiliary data
int dotsPerMeterX() const;
int dotsPerMeterY() const;
void setDotsPerMeterX(int);
void setDotsPerMeterY(int);
TQPoint offset() const;
void setOffset(const TQPoint&);
#ifndef QT_NO_IMAGE_TEXT
TQValueList<TQImageTextKeyLang> textList() const;
TQStringList textLanguages() const;
TQStringList textKeys() const;
TQString text(const char* key, const char* lang=0) const;
TQString text(const TQImageTextKeyLang&) const;
void setText(const char* key, const char* lang, const TQString&);
#endif
private:
void init();
void reinit();
void freeBits();
static void warningIndexRange( const char *, int );
struct TQImageData : public TQShared { // internal image data
int w; // image width
int h; // image height
int d; // image depth
int ncols; // number of colors
int nbytes; // number of bytes data
int bitordr; // bit order (1 bit depth)
TQRgb *ctbl; // color table
uchar **bits; // image data
bool alpha; // alpha buffer
int dpmx; // dots per meter X (or 0)
int dpmy; // dots per meter Y (or 0)
TQPoint offset; // offset in pixels
#ifndef QT_NO_IMAGE_TEXT
TQImageDataMisc* misc; // less common stuff
#endif
bool ctbl_mine; // this allocated ctbl
} *data;
#ifndef QT_NO_IMAGE_TEXT
TQImageDataMisc& misc() const;
#endif
#ifndef QT_NO_IMAGEIO
bool doImageIO( TQImageIO* io, int quality ) const;
#endif
friend Q_EXPORT void bitBlt( TQImage* dst, int dx, int dy,
const TQImage* src, int sx, int sy,
int sw, int sh, int conversion_flags );
};
// TQImage stream functions
#if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
Q_EXPORT TQDataStream &operator<<( TQDataStream &, const TQImage & );
Q_EXPORT TQDataStream &operator>>( TQDataStream &, TQImage & );
#endif
#ifndef QT_NO_IMAGEIO
class TQIODevice;
typedef void (*image_io_handler)( TQImageIO * ); // image IO handler
struct TQImageIOData;
class Q_EXPORT TQImageIO
{
public:
TQImageIO();
TQImageIO( TQIODevice *ioDevice, const char *format );
TQImageIO( const TQString &fileName, const char* format );
~TQImageIO();
const TQImage &image() const { return im; }
int status() const { return iostat; }
const char *format() const { return frmt; }
TQIODevice *ioDevice() const { return iodev; }
TQString fileName() const { return fname; }
int quality() const;
TQString description() const { return descr; }
const char *parameters() const;
float gamma() const;
void setImage( const TQImage & );
void setStatus( int );
void setFormat( const char * );
void setIODevice( TQIODevice * );
void setFileName( const TQString & );
void setQuality( int );
void setDescription( const TQString & );
void setParameters( const char * );
void setGamma( float );
bool read();
bool write();
static const char* imageFormat( const TQString &fileName );
static const char *imageFormat( TQIODevice * );
static TQStrList inputFormats();
static TQStrList outputFormats();
static void defineIOHandler( const char *format,
const char *header,
const char *flags,
image_io_handler read_image,
image_io_handler write_image );
private:
void init();
TQImage im; // image
int iostat; // IO status
TQCString frmt; // image format
TQIODevice *iodev; // IO device
TQString fname; // file name
char *params; // image parameters //### change to TQImageIOData *d in 3.0
TQString descr; // image description
TQImageIOData *d;
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
TQImageIO( const TQImageIO & );
TQImageIO &operator=( const TQImageIO & );
#endif
};
#endif //QT_NO_IMAGEIO
Q_EXPORT void bitBlt( TQImage* dst, int dx, int dy, const TQImage* src,
int sx=0, int sy=0, int sw=-1, int sh=-1,
int conversion_flags=0 );
/*****************************************************************************
TQImage member functions
*****************************************************************************/
inline bool TQImage::hasAlphaBuffer() const
{
return data->alpha;
}
inline uchar *TQImage::bits() const
{
return data->bits ? data->bits[0] : 0;
}
inline uchar **TQImage::jumpTable() const
{
return data->bits;
}
inline TQRgb *TQImage::colorTable() const
{
return data->ctbl;
}
inline int TQImage::numBytes() const
{
return data->nbytes;
}
inline int TQImage::bytesPerLine() const
{
return data->h ? data->nbytes/data->h : 0;
}
inline TQImage TQImage::copy(const TQRect& r) const
{
return copy(r.x(), r.y(), r.width(), r.height());
}
inline TQRgb TQImage::color( int i ) const
{
#if defined(QT_CHECK_RANGE)
if ( i >= data->ncols )
warningIndexRange( "color", i );
#endif
return data->ctbl ? data->ctbl[i] : (TQRgb)-1;
}
inline void TQImage::setColor( int i, TQRgb c )
{
#if defined(QT_CHECK_RANGE)
if ( i >= data->ncols )
warningIndexRange( "setColor", i );
#endif
if ( data->ctbl )
data->ctbl[i] = c;
}
inline uchar *TQImage::scanLine( int i ) const
{
#if defined(QT_CHECK_RANGE)
if ( i >= data->h )
warningIndexRange( "scanLine", i );
#endif
return data->bits ? data->bits[i] : 0;
}
inline int TQImage::dotsPerMeterX() const
{
return data->dpmx;
}
inline int TQImage::dotsPerMeterY() const
{
return data->dpmy;
}
inline TQPoint TQImage::offset() const
{
return data->offset;
}
#endif // TQIMAGE_H
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