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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/include/qimage.h:1 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>qimage.h Include File</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr bgcolor="#E5E5E5"><td valign=center> <a href="index.html"><font color="#004faf">Home</font></a> | <a href="classes.html"><font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> | <a href="annotated.html"><font color="#004faf">Annotated</font></a> | <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"><font color="#004faf">Functions</font></a></td><td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qimage.h</h1><p>This is the verbatim text of the qimage.h include file. It is provided only for illustration; the copyright remains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/qimage.h 3.0.5 edited Oct 12 2001 $**** Definition of QImage and QImageIO classes**** Created : 950207**** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.**** This file is part of the kernel module of the Qt GUI Toolkit.**** This file may be distributed under the terms of the Q Public License** as defined by Trolltech AS of Norway and appearing in the file** LICENSE.QPL included in the packaging of this file.**** This file may be distributed and/or modified under the terms of the** GNU General Public License version 2 as published by the Free Software** Foundation and appearing in the file LICENSE.GPL included in the** packaging of this file.**** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition** licenses may use this file in accordance with the Qt Commercial License** Agreement provided with the Software.**** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.**** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for** information about Qt Commercial License Agreements.** See http://www.trolltech.com/qpl/ for QPL licensing information.** See http://www.trolltech.com/gpl/ for GPL licensing information.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.************************************************************************/#ifndef QIMAGE_H#define QIMAGE_H#ifndef QT_H#include "qpixmap.h"#include "qstrlist.h"#include "qstringlist.h"#endif // QT_Hclass QImageDataMisc; // internal#ifndef QT_NO_IMAGE_TEXTclass Q_EXPORT QImageTextKeyLang {public: QImageTextKeyLang(const char* k, const char* l) : key(k), lang(l) { } QImageTextKeyLang() { } QCString key; QCString lang; bool operator< (const QImageTextKeyLang& other) const { return key < other.key || key==other.key && lang < other.lang; } bool operator== (const QImageTextKeyLang& other) const { return key==other.key && lang==other.lang; }};#endif //QT_NO_IMAGE_TEXTclass Q_EXPORT QImage{public: enum Endian { IgnoreEndian, BigEndian, LittleEndian }; QImage(); QImage( int width, int height, int depth, int numColors=0, Endian bitOrder=IgnoreEndian ); QImage( const QSize&, int depth, int numColors=0, Endian bitOrder=IgnoreEndian );#ifndef QT_NO_IMAGEIO QImage( const QString &fileName, const char* format=0 ); QImage( const char * const xpm[] ); QImage( const QByteArray &data );#endif QImage( uchar* data, int w, int h, int depth, QRgb* colortable, int numColors, Endian bitOrder );#ifdef Q_WS_QWS QImage( uchar* data, int w, int h, int depth, int pbl, QRgb* colortable, int numColors, Endian bitOrder );#endif QImage( const QImage & ); ~QImage(); QImage &operator=( const QImage & ); QImage &operator=( const QPixmap & ); bool operator==( const QImage & ) const; bool operator!=( const QImage & ) const; void detach(); QImage copy() const; QImage copy(int x, int y, int w, int h, int conversion_flags=0) const; QImage copy(const QRect&) const; bool isNull() const { return data->bits == 0; } int width() const { return data->w; } int height() const { return data->h; } QSize size() const { return QSize(data->w,data->h); } QRect rect() const { return QRect(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; } QRgb color( int i ) const; void setColor( int i, QRgb 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; QRgb *colorTable() const; int numBytes() const; int bytesPerLine() const;#ifdef Q_WS_QWS QGfx * graphicsContext();#endif bool create( int width, int height, int depth, int numColors=0, Endian bitOrder=IgnoreEndian ); bool create( const QSize&, int depth, int numColors=0, Endian bitOrder=IgnoreEndian ); void reset(); void fill( uint pixel ); void invertPixels( bool invertAlpha = TRUE ); QImage convertDepth( int ) const;#ifndef QT_NO_IMAGE_TRUECOLOR QImage convertDepthWithPalette( int, QRgb* p, int pc, int cf=0 ) const;#endif QImage convertDepth( int, int conversion_flags ) const; QImage convertBitOrder( Endian ) const; enum ScaleMode { ScaleFree, ScaleMin, ScaleMax };#ifndef QT_NO_IMAGE_SMOOTHSCALE QImage smoothScale( int w, int h, ScaleMode mode=ScaleFree ) const; QImage smoothScale( const QSize& s, ScaleMode mode=ScaleFree ) const;#endif#ifndef QT_NO_IMAGE_TRANSFORMATION QImage scale( int w, int h, ScaleMode mode=ScaleFree ) const; QImage scale( const QSize& s, ScaleMode mode=ScaleFree ) const; QImage scaleWidth( int w ) const; QImage scaleHeight( int h ) const; QImage xForm( const QWMatrix &matrix ) const;#endif#ifndef QT_NO_IMAGE_DITHER_TO_1 QImage createAlphaMask( int conversion_flags=0 ) const;#endif#ifndef QT_NO_IMAGE_HEURISTIC_MASK QImage createHeuristicMask( bool clipTight=TRUE ) const;#endif#ifndef QT_NO_IMAGE_MIRROR QImage mirror() const; QImage mirror(bool horizontally, bool vertically) const;#endif QImage swapRGB() const; static Endian systemBitOrder(); static Endian systemByteOrder();#ifndef QT_NO_IMAGEIO static const char* imageFormat( const QString &fileName ); static QStrList inputFormats(); static QStrList outputFormats();#ifndef QT_NO_STRINGLIST static QStringList inputFormatList(); static QStringList outputFormatList();#endif bool load( const QString &fileName, const char* format=0 ); bool loadFromData( const uchar *buf, uint len, const char *format=0 ); bool loadFromData( QByteArray data, const char* format=0 ); bool save( const QString &fileName, 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; QRgb 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); QPoint offset() const; void setOffset(const QPoint&);#ifndef QT_NO_IMAGE_TEXT QValueList<QImageTextKeyLang> textList() const; QStringList textLanguages() const; QStringList textKeys() const; QString text(const char* key, const char* lang=0) const; QString text(const QImageTextKeyLang&) const; void setText(const char* key, const char* lang, const QString&);#endifprivate: void init(); void reinit(); void freeBits(); static void warningIndexRange( const char *, int ); QSize scaleSize( const QSize &s, ScaleMode mode ) const; struct QImageData : public QShared { // 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) QRgb *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) QPoint offset; // offset in pixels#ifndef QT_NO_IMAGE_TEXT QImageDataMisc* misc; // less common stuff#endif bool ctbl_mine; // this allocated ctbl } *data;#ifndef QT_NO_IMAGE_TEXT QImageDataMisc& misc() const;#endif friend Q_EXPORT void bitBlt( QImage* dst, int dx, int dy, const QImage* src, int sx, int sy, int sw, int sh, int conversion_flags );};// QImage stream functions#if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)Q_EXPORT QDataStream &operator<<( QDataStream &, const QImage & );Q_EXPORT QDataStream &operator>>( QDataStream &, QImage & );#endif#ifndef QT_NO_IMAGEIOclass QIODevice;typedef void (*image_io_handler)( QImageIO * ); // image IO handlerstruct QImageIOData;class Q_EXPORT QImageIO{public: QImageIO(); QImageIO( QIODevice *ioDevice, const char *format ); QImageIO( const QString &fileName, const char* format ); ~QImageIO(); const QImage &image() const { return im; } int status() const { return iostat; } const char *format() const { return frmt; } QIODevice *ioDevice() const { return iodev; } QString fileName() const { return fname; } int quality() const; QString description() const { return descr; } const char *parameters() const; float gamma() const; void setImage( const QImage & ); void setStatus( int ); void setFormat( const char * ); void setIODevice( QIODevice * ); void setFileName( const QString & ); void setQuality( int ); void setDescription( const QString & ); void setParameters( const char * ); void setGamma( float ); bool read(); bool write(); static const char* imageFormat( const QString &fileName ); static const char *imageFormat( QIODevice * ); static QStrList inputFormats(); static QStrList 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(); QImage im; // image int iostat; // IO status QCString frmt; // image format QIODevice *iodev; // IO device QString fname; // file name char *params; // image parameters //### change to QImageIOData *d in 3.0 QString descr; // image description QImageIOData *d;private: // Disabled copy constructor and operator=#if defined(Q_DISABLE_COPY) QImageIO( const QImageIO & ); QImageIO &operator=( const QImageIO & );#endif};#endif //QT_NO_IMAGEIOQ_EXPORT void bitBlt( QImage* dst, int dx, int dy, const QImage* src, int sx=0, int sy=0, int sw=-1, int sh=-1, int conversion_flags=0 );/***************************************************************************** QImage member functions *****************************************************************************/inline bool QImage::hasAlphaBuffer() const{ return data->alpha;}inline uchar *QImage::bits() const{ return data->bits ? data->bits[0] : 0;}inline uchar **QImage::jumpTable() const{ return data->bits;}inline QRgb *QImage::colorTable() const{ return data->ctbl;}inline int QImage::numBytes() const{ return data->nbytes;}inline int QImage::bytesPerLine() const{ return data->h ? data->nbytes/data->h : 0;}inline QImage QImage::copy(const QRect& r) const{ return copy(r.x(), r.y(), r.width(), r.height());}inline QRgb QImage::color( int i ) const{#if defined(QT_CHECK_RANGE) if ( i >= data->ncols ) warningIndexRange( "color", i );#endif return data->ctbl ? data->ctbl[i] : (QRgb)-1;}inline void QImage::setColor( int i, QRgb c ){#if defined(QT_CHECK_RANGE) if ( i >= data->ncols ) warningIndexRange( "setColor", i );#endif if ( data->ctbl ) data->ctbl[i] = c;}inline uchar *QImage::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 QImage::dotsPerMeterX() const{ return data->dpmx;}inline int QImage::dotsPerMeterY() const{ return data->dpmy;}inline QPoint QImage::offset() const{ return data->offset;}#endif // QIMAGE_H</pre><!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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