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Diffstat (limited to 'src/kernel/qimage.h')
| -rw-r--r-- | src/kernel/qimage.h | 425 |
1 files changed, 425 insertions, 0 deletions
diff --git a/src/kernel/qimage.h b/src/kernel/qimage.h new file mode 100644 index 00000000..89533522 --- /dev/null +++ b/src/kernel/qimage.h @@ -0,0 +1,425 @@ +/**************************************************************************** +** +** Definition of TQImage and TQImageIO classes +** +** Created : 950207 +** +** Copyright (C) 1992-2008 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 files LICENSE.GPL2 +** and LICENSE.GPL3 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 |