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| 21 | | <a href="classes.html">
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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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| 26 | <font color="#004faf">Annotated</font></a>
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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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>qpixmap.h</h1>
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| 33 |
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| 34 | <p>This is the verbatim text of the qpixmap.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: qpixmap-h.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 39 | **
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| 40 | ** Definition of QPixmap class
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| 41 | **
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| 42 | ** Created : 940501
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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 QPIXMAP_H
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| 75 | #define QPIXMAP_H
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| 76 |
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| 77 | #ifndef QT_H
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| 78 | #include "qpaintdevice.h"
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| 79 | #include "qcolor.h" // char*->QColor conversion
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| 80 | #include "qstring.h" // char*->QString conversion
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| 81 | #include "qnamespace.h"
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| 82 | #endif // QT_H
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| 83 |
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| 84 | class QGfx;
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| 85 | class QPixmapPrivate;
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| 86 |
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| 87 | #if defined(Q_WS_WIN)
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| 88 | // Internal pixmap memory optimization class for Windows 9x
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| 89 | class QMultiCellPixmap;
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| 90 | #endif
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| 91 |
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| 92 |
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| 93 | class Q_EXPORT QPixmap : public QPaintDevice, public Qt
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| 94 | {
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| 95 | public:
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| 96 | enum ColorMode { Auto, Color, Mono };
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| 97 | enum Optimization { DefaultOptim, NoOptim, MemoryOptim=NoOptim,
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| 98 | NormalOptim, BestOptim };
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| 99 |
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| 100 | QPixmap();
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| 101 | QPixmap( const QImage& image );
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| 102 | QPixmap( int w, int h, int depth = -1, Optimization = DefaultOptim );
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| 103 | QPixmap( const QSize &, int depth = -1, Optimization = DefaultOptim );
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| 104 | #ifndef QT_NO_IMAGEIO
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| 105 | QPixmap( const QString& fileName, const char *format=0,
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| 106 | ColorMode mode=Auto );
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| 107 | QPixmap( const QString& fileName, const char *format,
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| 108 | int conversion_flags );
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| 109 | QPixmap( const char *xpm[] ); // ### in 4.0, 'const char * const xpm[]'?
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| 110 | QPixmap( const QByteArray &data );
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| 111 | #endif
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| 112 | QPixmap( const QPixmap & );
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| 113 | ~QPixmap();
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| 114 |
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| 115 | QPixmap &operator=( const QPixmap & );
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| 116 | QPixmap &operator=( const QImage & );
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| 117 |
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| 118 | bool isNull() const;
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| 119 |
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| 120 | int width() const { return data->w; }
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| 121 | int height() const { return data->h; }
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| 122 | QSize size() const { return QSize(data->w,data->h); }
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| 123 | QRect rect() const { return QRect(0,0,data->w,data->h); }
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| 124 | int depth() const { return data->d; }
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| 125 | static int defaultDepth();
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| 126 |
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| 127 | void fill( const QColor &fillColor = Qt::white );
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| 128 | void fill( const QWidget *, int xofs, int yofs );
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| 129 | void fill( const QWidget *, const QPoint &ofs );
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| 130 | void resize( int width, int height );
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| 131 | void resize( const QSize & );
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| 132 |
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| 133 | const QBitmap *mask() const;
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| 134 | void setMask( const QBitmap & );
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| 135 | bool selfMask() const;
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| 136 | bool hasAlpha() const;
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| 137 | bool hasAlphaChannel() const;
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| 138 | #ifndef QT_NO_IMAGE_HEURISTIC_MASK
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| 139 | QBitmap createHeuristicMask( bool clipTight = TRUE ) const;
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| 140 | #endif
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| 141 | #ifndef QT_NO_MIME
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| 142 | static QPixmap fromMimeSource( const QString& abs_name );
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| 143 | #endif
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| 144 | static QPixmap grabWindow( WId, int x=0, int y=0, int w=-1, int h=-1 );
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| 145 | static QPixmap grabWidget( QWidget * widget,
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| 146 | int x=0, int y=0, int w=-1, int h=-1 );
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| 147 |
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| 148 | #ifndef QT_NO_PIXMAP_TRANSFORMATION
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| 149 | QPixmap xForm( const QWMatrix & ) const;
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| 150 | static QWMatrix trueMatrix( const QWMatrix &, int w, int h );
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| 151 | #endif
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| 152 |
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| 153 | QImage convertToImage() const;
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| 154 | bool convertFromImage( const QImage &, ColorMode mode=Auto );
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| 155 | bool convertFromImage( const QImage &, int conversion_flags );
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| 156 | #ifndef QT_NO_IMAGEIO
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| 157 | static const char* imageFormat( const QString &fileName );
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| 158 | bool load( const QString& fileName, const char *format=0,
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| 159 | ColorMode mode=Auto );
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| 160 | bool load( const QString& fileName, const char *format,
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| 161 | int conversion_flags );
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| 162 | bool loadFromData( const uchar *buf, uint len,
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| 163 | const char* format=0,
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| 164 | ColorMode mode=Auto );
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| 165 | bool loadFromData( const uchar *buf, uint len,
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| 166 | const char* format,
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| 167 | int conversion_flags );
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| 168 | bool loadFromData( const QByteArray &data,
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| 169 | const char* format=0,
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| 170 | int conversion_flags=0 );
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| 171 | bool save( const QString& fileName, const char* format, int quality = -1 ) const;
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| 172 | bool save( QIODevice* device, const char* format, int quality = -1 ) const;
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| 173 | #endif
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| 174 |
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| 175 | #if defined(Q_WS_WIN)
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| 176 | HBITMAP hbm() const;
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| 177 | #endif
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| 178 |
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| 179 | int serialNumber() const;
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| 180 |
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| 181 | Optimization optimization() const;
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| 182 | void setOptimization( Optimization );
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| 183 | static Optimization defaultOptimization();
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| 184 | static void setDefaultOptimization( Optimization );
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| 185 |
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| 186 | virtual void detach();
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| 187 |
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| 188 | bool isQBitmap() const;
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| 189 |
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| 190 | #if defined(Q_WS_WIN)
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| 191 | // These functions are internal and used by Windows 9x only
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| 192 | bool isMultiCellPixmap() const;
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| 193 | HDC multiCellHandle() const;
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| 194 | HBITMAP multiCellBitmap() const;
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| 195 | int multiCellOffset() const;
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| 196 | int allocCell();
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| 197 | void freeCell( bool = FALSE );
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| 198 | #endif
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| 199 |
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| 200 | #if defined(Q_WS_QWS)
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| 201 | virtual QGfx * graphicsContext(bool clip_children=TRUE) const;
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| 202 | virtual unsigned char * scanLine(int) const;
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| 203 | virtual int bytesPerLine() const;
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| 204 | QRgb * clut() const;
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| 205 | int numCols() const;
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| 206 | #elif defined(Q_WS_X11)
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| 207 | static int x11SetDefaultScreen( int screen );
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| 208 | void x11SetScreen( int screen );
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| 209 | #endif
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| 210 |
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| 211 | #ifndef Q_QDOC
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| 212 | Q_DUMMY_COMPARISON_OPERATOR(QPixmap)
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| 213 | #endif
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| 214 |
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| 215 | protected:
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| 216 | QPixmap( int w, int h, const uchar *data, bool isXbitmap );
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| 217 | int metric( int ) const;
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| 218 |
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| 219 | #if defined(Q_WS_WIN)
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| 220 | struct QMCPI { // mem optim for win9x
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| 221 | QMultiCellPixmap *mcp;
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| 222 | int offset;
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| 223 | };
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| 224 | #endif
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| 225 |
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| 226 | struct QPixmapData : public QShared { // internal pixmap data
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| 227 | QCOORD w, h;
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| 228 | short d;
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| 229 | uint uninit : 1;
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| 230 | uint bitmap : 1;
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| 231 | uint selfmask : 1;
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| 232 | #if defined(Q_WS_WIN)
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| 233 | uint mcp : 1;
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| 234 | #endif
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| 235 | int ser_no;
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| 236 | QBitmap *mask;
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| 237 | #if defined(Q_WS_WIN)
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| 238 | QPixmap *maskpm;
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| 239 | union {
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| 240 | HBITMAP hbm; // if mcp == FALSE
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| 241 | QMCPI *mcpi; // if mcp == TRUE
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| 242 | } hbm_or_mcpi;
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| 243 | uchar *realAlphaBits;
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| 244 | #ifdef Q_OS_TEMP
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| 245 | uchar* ppvBits; // Pointer to DIBSection bits
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| 246 | #endif
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| 247 | #elif defined(Q_WS_X11)
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| 248 | void *ximage;
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| 249 | void *maskgc;
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| 250 | QPixmap *alphapm;
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| 251 | #elif defined(Q_WS_MAC)
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| 252 | ColorTable *clut;
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| 253 | QPixmap *alphapm;
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| 254 | #elif defined(Q_WS_QWS)
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| 255 | int id; // ### should use QPaintDevice::hd, since it is there
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| 256 | QRgb * clut;
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| 257 | int numcols;
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| 258 | int rw;
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| 259 | int rh;
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| 260 | bool hasAlpha;
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| 261 | #endif
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| 262 | Optimization optim;
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| 263 | #if defined(Q_WS_WIN)
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| 264 | HBITMAP old_hbm;
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| 265 | #endif
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| 266 | } *data;
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| 267 | private:
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| 268 | #ifndef QT_NO_IMAGEIO
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| 269 | bool doImageIO( QImageIO* io, int quality ) const;
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| 270 | #endif
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| 271 | QPixmap( int w, int h, int depth, bool, Optimization );
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| 272 | void init( int, int, int, bool, Optimization );
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| 273 | void deref();
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| 274 | QPixmap copy( bool ignoreMask = FALSE ) const;
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| 275 | #if defined(Q_WS_WIN)
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| 276 | void initAlphaPixmap( uchar *bytes, int length, struct tagBITMAPINFO *bmi );
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| 277 | void convertToAlphaPixmap( bool initAlpha=TRUE );
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| 278 | static void bitBltAlphaPixmap( QPixmap *dst, int dx, int dy,
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| 279 | const QPixmap *src, int sx, int sy,
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| 280 | int sw, int sh, bool useDstAlpha );
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| 281 | #endif
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| 282 | static Optimization defOptim;
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| 283 | friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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| 284 | const QPaintDevice *,
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| 285 | int, int, int, int, RasterOp, bool );
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| 286 | friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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| 287 | const QImage* src,
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| 288 | int, int, int, int, int conversion_flags );
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| 289 | friend Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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| 290 | const QPixmap *src, int sx, int sy,
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| 291 | int sw, int sh );
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| 292 |
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| 293 | #if defined(Q_WS_MAC)
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| 294 | friend void unclippedScaledBitBlt(QPaintDevice *, int, int, int, int,
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| 295 | const QPaintDevice *, int, int, int, int,
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| 296 | Qt::RasterOp, bool, bool);
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| 297 | #endif
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| 298 |
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| 299 | friend class QBitmap;
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| 300 | friend class QPaintDevice;
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| 301 | friend class QPainter;
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| 302 | friend class QGLWidget;
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| 303 | };
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| 304 |
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| 305 |
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| 306 | inline bool QPixmap::isNull() const
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| 307 | {
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| 308 | return data->w == 0;
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| 309 | }
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| 310 |
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| 311 | inline void QPixmap::fill( const QWidget *w, const QPoint &ofs )
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| 312 | {
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| 313 | fill( w, ofs.x(), ofs.y() );
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| 314 | }
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| 315 |
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| 316 | inline void QPixmap::resize( const QSize &s )
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| 317 | {
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| 318 | resize( s.width(), s.height() );
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| 319 | }
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| 320 |
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| 321 | inline const QBitmap *QPixmap::mask() const
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| 322 | {
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| 323 | return data->mask;
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| 324 | }
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| 325 |
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| 326 | inline bool QPixmap::selfMask() const
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| 327 | {
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| 328 | return data->selfmask;
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| 329 | }
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| 330 |
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| 331 | #if defined(Q_WS_WIN)
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| 332 | inline HBITMAP QPixmap::hbm() const
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| 333 | {
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| 334 | return data->mcp ? 0 : data->hbm_or_mcpi.hbm;
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| 335 | }
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| 336 | #endif
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| 337 |
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| 338 | inline int QPixmap::serialNumber() const
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| 339 | {
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| 340 | return data->ser_no;
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| 341 | }
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| 342 |
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| 343 | inline QPixmap::Optimization QPixmap::optimization() const
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| 344 | {
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| 345 | return data->optim;
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| 346 | }
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| 347 |
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| 348 | inline bool QPixmap::isQBitmap() const
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| 349 | {
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| 350 | return data->bitmap;
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| 351 | }
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| 352 |
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| 353 | #if defined(Q_WS_WIN)
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| 354 | inline bool QPixmap::isMultiCellPixmap() const
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| 355 | {
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| 356 | return data->mcp;
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| 357 | }
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| 358 | #endif
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| 359 |
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| 360 |
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| 361 | /*****************************************************************************
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| 362 | QPixmap stream functions
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| 363 | *****************************************************************************/
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| 364 |
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| 365 | #if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
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| 366 | Q_EXPORT QDataStream &operator<<( QDataStream &, const QPixmap & );
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| 367 | Q_EXPORT QDataStream &operator>>( QDataStream &, QPixmap & );
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| 368 | #endif
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| 369 |
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| 370 | /*****************************************************************************
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| 371 | QPixmap (and QImage) helper functions
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| 372 | *****************************************************************************/
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| 373 |
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| 374 | #ifndef QT_NO_PIXMAP_TRANSFORMATION
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| 375 | # define QT_XFORM_TYPE_MSBFIRST 0
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| 376 | # define QT_XFORM_TYPE_LSBFIRST 1
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| 377 | # if defined(Q_WS_WIN)
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| 378 | # define QT_XFORM_TYPE_WINDOWSPIXMAP 2
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| 379 | # endif
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| 380 | bool qt_xForm_helper( const QWMatrix&, int, int, int, uchar*, int, int, int, uchar*, int, int, int );
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| 381 | #endif
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| 382 |
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| 383 | Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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| 384 | const QPixmap *src, int sx = 0, int sy = 0,
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| 385 | int sw = -1, int sh = -1 );
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| 386 |
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| 387 | #endif // QPIXMAP_H
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| 388 | </pre>
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| 389 | <!-- eof -->
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| 390 | <p><address><hr><div align=center>
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| 391 | <table width=100% cellspacing=0 border=0><tr>
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| 392 | <td>Copyright © 2007
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| 393 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 394 | <td align=right><div align=right>Qt 3.3.8</div>
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| 395 | </table></div></address></body>
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| 396 | </html>
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