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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/include/qimage.h:1 -->
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| 19 | <a href="index.html">
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| 20 | <font color="#004faf">Home</font></a>
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| 22 | <font color="#004faf">All Classes</font></a>
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| 23 | | <a href="mainclasses.html">
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 25 | | <a href="annotated.html">
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| 26 | <font color="#004faf">Annotated</font></a>
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| 27 | | <a href="groups.html">
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 29 | | <a href="functions.html">
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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| 32 | <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>
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| 33 |
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| 34 | <p>This is the verbatim text of the qimage.h include file. It is provided only for illustration; the copyright remains with Trolltech.
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| 35 | <hr>
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| 36 | <pre>
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| 37 | /****************************************************************************
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| 38 | ** $Id: qimage-h.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 39 | **
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| 40 | ** Definition of QImage and QImageIO classes
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| 41 | **
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| 42 | ** Created : 950207
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| 43 | **
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| 44 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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| 45 | **
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| 46 | ** This file is part of the kernel module of the Qt GUI Toolkit.
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| 47 | **
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| 48 | ** This file may be distributed under the terms of the Q Public License
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| 49 | ** as defined by Trolltech ASA of Norway and appearing in the file
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| 50 | ** LICENSE.QPL included in the packaging of this file.
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| 51 | **
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| 52 | ** This file may be distributed and/or modified under the terms of the
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| 53 | ** GNU General Public License version 2 as published by the Free Software
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| 54 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 55 | ** packaging of this file.
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| 56 | **
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| 57 | ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
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| 58 | ** licenses may use this file in accordance with the Qt Commercial License
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| 59 | ** Agreement provided with the Software.
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| 60 | **
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| 61 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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| 62 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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| 63 | **
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| 64 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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| 65 | ** information about Qt Commercial License Agreements.
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| 66 | ** See http://www.trolltech.com/qpl/ for QPL licensing information.
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| 67 | ** See http://www.trolltech.com/gpl/ for GPL licensing information.
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| 68 | **
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| 69 | ** Contact info@trolltech.com if any conditions of this licensing are
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| 70 | ** not clear to you.
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| 71 | **
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| 72 | **********************************************************************/
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| 73 |
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| 74 | #ifndef QIMAGE_H
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| 75 | #define QIMAGE_H
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| 76 |
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| 77 | #ifndef QT_H
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| 78 | #include "qpixmap.h"
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| 79 | #include "qstrlist.h"
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| 80 | #include "qstringlist.h"
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| 81 | #endif // QT_H
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| 82 |
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| 83 | class QImageDataMisc; // internal
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| 84 | #ifndef QT_NO_IMAGE_TEXT
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| 85 | class Q_EXPORT QImageTextKeyLang {
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| 86 | public:
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| 87 | QImageTextKeyLang(const char* k, const char* l) : key(k), lang(l) { }
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| 88 | QImageTextKeyLang() { }
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| 89 |
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| 90 | QCString key;
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| 91 | QCString lang;
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| 92 |
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| 93 | bool operator< (const QImageTextKeyLang& other) const
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| 94 | { return key < other.key || key==other.key && lang < other.lang; }
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| 95 | bool operator== (const QImageTextKeyLang& other) const
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| 96 | { return key==other.key && lang==other.lang; }
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| 97 | };
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| 98 | #endif //QT_NO_IMAGE_TEXT
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| 99 |
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| 100 |
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| 101 | class Q_EXPORT QImage
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| 102 | {
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| 103 | public:
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| 104 | enum Endian { IgnoreEndian, BigEndian, LittleEndian };
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| 105 |
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| 106 | QImage();
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| 107 | QImage( int width, int height, int depth, int numColors=0,
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| 108 | Endian bitOrder=IgnoreEndian );
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| 109 | QImage( const QSize&, int depth, int numColors=0,
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| 110 | Endian bitOrder=IgnoreEndian );
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| 111 | #ifndef QT_NO_IMAGEIO
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| 112 | QImage( const QString &fileName, const char* format=0 );
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| 113 | QImage( const char * const xpm[] );
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| 114 | QImage( const QByteArray &data );
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| 115 | #endif
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| 116 | QImage( uchar* data, int w, int h, int depth,
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| 117 | QRgb* colortable, int numColors,
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| 118 | Endian bitOrder );
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| 119 | #ifdef Q_WS_QWS
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| 120 | QImage( uchar* data, int w, int h, int depth, int pbl,
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| 121 | QRgb* colortable, int numColors,
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| 122 | Endian bitOrder );
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| 123 | #endif
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| 124 | QImage( const QImage & );
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| 125 | ~QImage();
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| 126 |
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| 127 | QImage &operator=( const QImage & );
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| 128 | QImage &operator=( const QPixmap & );
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| 129 | bool operator==( const QImage & ) const;
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| 130 | bool operator!=( const QImage & ) const;
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| 131 | void detach();
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| 132 | QImage copy() const;
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| 133 | QImage copy(int x, int y, int w, int h, int conversion_flags=0) const;
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| 134 | QImage copy(const QRect&) const;
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| 135 | #ifndef QT_NO_MIME
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| 136 | static QImage fromMimeSource( const QString& abs_name );
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| 137 | #endif
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| 138 | bool isNull() const { return data->bits == 0; }
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| 139 |
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| 140 | int width() const { return data->w; }
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| 141 | int height() const { return data->h; }
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| 142 | QSize size() const { return QSize(data->w,data->h); }
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| 143 | QRect rect() const { return QRect(0,0,data->w,data->h); }
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| 144 | int depth() const { return data->d; }
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| 145 | int numColors() const { return data->ncols; }
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| 146 | Endian bitOrder() const { return (Endian) data->bitordr; }
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| 147 |
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| 148 | QRgb color( int i ) const;
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| 149 | void setColor( int i, QRgb c );
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| 150 | void setNumColors( int );
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| 151 |
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| 152 | bool hasAlphaBuffer() const;
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| 153 | void setAlphaBuffer( bool );
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| 154 |
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| 155 | bool allGray() const;
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| 156 | bool isGrayscale() const;
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| 157 |
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| 158 | uchar *bits() const;
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| 159 | uchar *scanLine( int ) const;
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| 160 | uchar **jumpTable() const;
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| 161 | QRgb *colorTable() const;
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| 162 | int numBytes() const;
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| 163 | int bytesPerLine() const;
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| 164 |
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| 165 | #ifdef Q_WS_QWS
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| 166 | QGfx * graphicsContext();
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| 167 | #endif
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| 168 |
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| 169 | bool create( int width, int height, int depth, int numColors=0,
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| 170 | Endian bitOrder=IgnoreEndian );
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| 171 | bool create( const QSize&, int depth, int numColors=0,
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| 172 | Endian bitOrder=IgnoreEndian );
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| 173 | void reset();
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| 174 |
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| 175 | void fill( uint pixel );
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| 176 | void invertPixels( bool invertAlpha = TRUE );
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| 177 |
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| 178 | QImage convertDepth( int ) const;
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| 179 | #ifndef QT_NO_IMAGE_TRUECOLOR
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| 180 | QImage convertDepthWithPalette( int, QRgb* p, int pc, int cf=0 ) const;
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| 181 | #endif
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| 182 | QImage convertDepth( int, int conversion_flags ) const;
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| 183 | QImage convertBitOrder( Endian ) const;
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| 184 |
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| 185 | enum ScaleMode {
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| 186 | ScaleFree,
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| 187 | ScaleMin,
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| 188 | ScaleMax
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| 189 | };
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| 190 | #ifndef QT_NO_IMAGE_SMOOTHSCALE
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| 191 | QImage smoothScale( int w, int h, ScaleMode mode=ScaleFree ) const;
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| 192 | QImage smoothScale( const QSize& s, ScaleMode mode=ScaleFree ) const;
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| 193 | #endif
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| 194 | #ifndef QT_NO_IMAGE_TRANSFORMATION
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| 195 | QImage scale( int w, int h, ScaleMode mode=ScaleFree ) const;
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| 196 | QImage scale( const QSize& s, ScaleMode mode=ScaleFree ) const;
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| 197 | QImage scaleWidth( int w ) const;
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| 198 | QImage scaleHeight( int h ) const;
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| 199 | QImage xForm( const QWMatrix &matrix ) const;
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| 200 | #endif
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| 201 |
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| 202 | #ifndef QT_NO_IMAGE_DITHER_TO_1
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| 203 | QImage createAlphaMask( int conversion_flags=0 ) const;
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| 204 | #endif
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| 205 | #ifndef QT_NO_IMAGE_HEURISTIC_MASK
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| 206 | QImage createHeuristicMask( bool clipTight=TRUE ) const;
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| 207 | #endif
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| 208 | #ifndef QT_NO_IMAGE_MIRROR
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| 209 | QImage mirror() const;
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| 210 | QImage mirror(bool horizontally, bool vertically) const;
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| 211 | #endif
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| 212 | QImage swapRGB() const;
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| 213 |
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| 214 | static Endian systemBitOrder();
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| 215 | static Endian systemByteOrder();
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| 216 |
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| 217 | #ifndef QT_NO_IMAGEIO
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| 218 | static const char* imageFormat( const QString &fileName );
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| 219 | static QStrList inputFormats();
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| 220 | static QStrList outputFormats();
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| 221 | #ifndef QT_NO_STRINGLIST
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| 222 | static QStringList inputFormatList();
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| 223 | static QStringList outputFormatList();
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| 224 | #endif
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| 225 | bool load( const QString &fileName, const char* format=0 );
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| 226 | bool loadFromData( const uchar *buf, uint len,
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| 227 | const char *format=0 );
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| 228 | bool loadFromData( QByteArray data, const char* format=0 );
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| 229 | bool save( const QString &fileName, const char* format,
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| 230 | int quality=-1 ) const;
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| 231 | bool save( QIODevice * device, const char* format,
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| 232 | int quality=-1 ) const;
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| 233 | #endif //QT_NO_IMAGEIO
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| 234 |
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| 235 | bool valid( int x, int y ) const;
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| 236 | int pixelIndex( int x, int y ) const;
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| 237 | QRgb pixel( int x, int y ) const;
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| 238 | void setPixel( int x, int y, uint index_or_rgb );
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| 239 |
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| 240 | // Auxiliary data
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| 241 | int dotsPerMeterX() const;
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| 242 | int dotsPerMeterY() const;
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| 243 | void setDotsPerMeterX(int);
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| 244 | void setDotsPerMeterY(int);
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| 245 | QPoint offset() const;
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| 246 | void setOffset(const QPoint&);
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| 247 | #ifndef QT_NO_IMAGE_TEXT
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| 248 | QValueList<QImageTextKeyLang> textList() const;
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| 249 | QStringList textLanguages() const;
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| 250 | QStringList textKeys() const;
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| 251 | QString text(const char* key, const char* lang=0) const;
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| 252 | QString text(const QImageTextKeyLang&) const;
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| 253 | void setText(const char* key, const char* lang, const QString&);
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| 254 | #endif
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| 255 | private:
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| 256 | void init();
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| 257 | void reinit();
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| 258 | void freeBits();
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| 259 | static void warningIndexRange( const char *, int );
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| 260 |
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| 261 | struct QImageData : public QShared { // internal image data
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| 262 | int w; // image width
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| 263 | int h; // image height
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| 264 | int d; // image depth
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| 265 | int ncols; // number of colors
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| 266 | int nbytes; // number of bytes data
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| 267 | int bitordr; // bit order (1 bit depth)
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| 268 | QRgb *ctbl; // color table
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| 269 | uchar **bits; // image data
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| 270 | bool alpha; // alpha buffer
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| 271 | int dpmx; // dots per meter X (or 0)
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| 272 | int dpmy; // dots per meter Y (or 0)
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| 273 | QPoint offset; // offset in pixels
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| 274 | #ifndef QT_NO_IMAGE_TEXT
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| 275 | QImageDataMisc* misc; // less common stuff
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| 276 | #endif
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| 277 | bool ctbl_mine; // this allocated ctbl
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| 278 | } *data;
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| 279 | #ifndef QT_NO_IMAGE_TEXT
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| 280 | QImageDataMisc& misc() const;
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| 281 | #endif
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| 282 | #ifndef QT_NO_IMAGEIO
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| 283 | bool doImageIO( QImageIO* io, int quality ) const;
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| 284 | #endif
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| 285 | friend Q_EXPORT void bitBlt( QImage* dst, int dx, int dy,
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| 286 | const QImage* src, int sx, int sy,
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| 287 | int sw, int sh, int conversion_flags );
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| 288 | };
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| 289 |
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| 290 |
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| 291 | // QImage stream functions
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| 292 |
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| 293 | #if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
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| 294 | Q_EXPORT QDataStream &operator<<( QDataStream &, const QImage & );
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| 295 | Q_EXPORT QDataStream &operator>>( QDataStream &, QImage & );
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| 296 | #endif
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| 297 |
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| 298 | #ifndef QT_NO_IMAGEIO
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| 299 | class QIODevice;
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| 300 | typedef void (*image_io_handler)( QImageIO * ); // image IO handler
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| 301 |
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| 302 |
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| 303 | struct QImageIOData;
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| 304 |
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| 305 |
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| 306 | class Q_EXPORT QImageIO
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| 307 | {
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| 308 | public:
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| 309 | QImageIO();
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| 310 | QImageIO( QIODevice *ioDevice, const char *format );
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| 311 | QImageIO( const QString &fileName, const char* format );
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| 312 | ~QImageIO();
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| 313 |
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| 314 |
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| 315 | const QImage &image() const { return im; }
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| 316 | int status() const { return iostat; }
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| 317 | const char *format() const { return frmt; }
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| 318 | QIODevice *ioDevice() const { return iodev; }
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| 319 | QString fileName() const { return fname; }
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| 320 | int quality() const;
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| 321 | QString description() const { return descr; }
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| 322 | const char *parameters() const;
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| 323 | float gamma() const;
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| 324 |
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| 325 | void setImage( const QImage & );
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| 326 | void setStatus( int );
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| 327 | void setFormat( const char * );
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| 328 | void setIODevice( QIODevice * );
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| 329 | void setFileName( const QString & );
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| 330 | void setQuality( int );
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| 331 | void setDescription( const QString & );
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| 332 | void setParameters( const char * );
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| 333 | void setGamma( float );
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| 334 |
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| 335 | bool read();
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| 336 | bool write();
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| 337 |
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| 338 | static const char* imageFormat( const QString &fileName );
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| 339 | static const char *imageFormat( QIODevice * );
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| 340 | static QStrList inputFormats();
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| 341 | static QStrList outputFormats();
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| 342 |
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| 343 | static void defineIOHandler( const char *format,
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| 344 | const char *header,
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| 345 | const char *flags,
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| 346 | image_io_handler read_image,
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| 347 | image_io_handler write_image );
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| 348 |
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| 349 | private:
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| 350 | void init();
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| 351 |
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| 352 | QImage im; // image
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| 353 | int iostat; // IO status
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| 354 | QCString frmt; // image format
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| 355 | QIODevice *iodev; // IO device
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| 356 | QString fname; // file name
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| 357 | char *params; // image parameters //### change to QImageIOData *d in 3.0
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| 358 | QString descr; // image description
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| 359 | QImageIOData *d;
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| 360 |
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| 361 | private: // Disabled copy constructor and operator=
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| 362 | #if defined(Q_DISABLE_COPY)
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| 363 | QImageIO( const QImageIO & );
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| 364 | QImageIO &operator=( const QImageIO & );
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| 365 | #endif
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| 366 | };
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| 367 |
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| 368 | #endif //QT_NO_IMAGEIO
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| 369 |
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| 370 | Q_EXPORT void bitBlt( QImage* dst, int dx, int dy, const QImage* src,
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| 371 | int sx=0, int sy=0, int sw=-1, int sh=-1,
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| 372 | int conversion_flags=0 );
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| 373 |
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| 374 |
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| 375 | /*****************************************************************************
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| 376 | QImage member functions
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| 377 | *****************************************************************************/
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| 378 |
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| 379 | inline bool QImage::hasAlphaBuffer() const
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| 380 | {
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| 381 | return data->alpha;
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| 382 | }
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| 383 |
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| 384 | inline uchar *QImage::bits() const
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| 385 | {
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| 386 | return data->bits ? data->bits[0] : 0;
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| 387 | }
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| 388 |
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| 389 | inline uchar **QImage::jumpTable() const
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| 390 | {
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| 391 | return data->bits;
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| 392 | }
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| 393 |
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| 394 | inline QRgb *QImage::colorTable() const
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| 395 | {
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| 396 | return data->ctbl;
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| 397 | }
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| 398 |
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| 399 | inline int QImage::numBytes() const
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| 400 | {
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| 401 | return data->nbytes;
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| 402 | }
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| 403 |
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| 404 | inline int QImage::bytesPerLine() const
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| 405 | {
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| 406 | return data->h ? data->nbytes/data->h : 0;
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| 407 | }
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| 408 |
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| 409 | inline QImage QImage::copy(const QRect& r) const
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| 410 | {
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| 411 | return copy(r.x(), r.y(), r.width(), r.height());
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| 412 | }
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| 413 |
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| 414 | inline QRgb QImage::color( int i ) const
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| 415 | {
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| 416 | #if defined(QT_CHECK_RANGE)
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| 417 | if ( i >= data->ncols )
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| 418 | warningIndexRange( "color", i );
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| 419 | #endif
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| 420 | return data->ctbl ? data->ctbl[i] : (QRgb)-1;
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| 421 | }
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| 422 |
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| 423 | inline void QImage::setColor( int i, QRgb c )
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| 424 | {
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| 425 | #if defined(QT_CHECK_RANGE)
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| 426 | if ( i >= data->ncols )
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| 427 | warningIndexRange( "setColor", i );
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| 428 | #endif
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| 429 | if ( data->ctbl )
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| 430 | data->ctbl[i] = c;
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| 431 | }
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| 432 |
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| 433 | inline uchar *QImage::scanLine( int i ) const
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| 434 | {
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| 435 | #if defined(QT_CHECK_RANGE)
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| 436 | if ( i >= data->h )
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| 437 | warningIndexRange( "scanLine", i );
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| 438 | #endif
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| 439 | return data->bits ? data->bits[i] : 0;
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| 440 | }
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| 441 |
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| 442 | inline int QImage::dotsPerMeterX() const
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| 443 | {
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| 444 | return data->dpmx;
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| 445 | }
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| 446 |
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| 447 | inline int QImage::dotsPerMeterY() const
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| 448 | {
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| 449 | return data->dpmy;
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| 450 | }
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| 451 |
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| 452 | inline QPoint QImage::offset() const
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| 453 | {
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| 454 | return data->offset;
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| 455 | }
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| 456 |
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| 457 |
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| 458 | #endif // QIMAGE_H
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| 459 | </pre>
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| 460 | <!-- eof -->
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| 461 | <p><address><hr><div align=center>
|
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| 462 | <table width=100% cellspacing=0 border=0><tr>
|
|---|
| 463 | <td>Copyright © 2007
|
|---|
| 464 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|---|
| 465 | <td align=right><div align=right>Qt 3.3.8</div>
|
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| 466 | </table></div></address></body>
|
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| 467 | </html>
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