| [2] | 1 | /****************************************************************************
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| 2 | ** $Id: qpixmap.h 59 2006-01-29 19:56:21Z dmik $
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| 3 | **
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| 4 | ** Definition of QPixmap class
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| 5 | **
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| 6 | ** Created : 940501
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| 7 | **
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| 8 | ** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
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| 9 | **
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| 10 | ** This file is part of the kernel module of the Qt GUI Toolkit.
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| 11 | **
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| 12 | ** This file may be distributed under the terms of the Q Public License
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| 13 | ** as defined by Trolltech AS of Norway and appearing in the file
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| 14 | ** LICENSE.QPL included in the packaging of this file.
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| 15 | **
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| 16 | ** This file may be distributed and/or modified under the terms of the
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| 17 | ** GNU General Public License version 2 as published by the Free Software
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| 18 | ** Foundation and appearing in the file LICENSE.GPL included in the
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| 19 | ** packaging of this file.
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| 20 | **
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| 21 | ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
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| 22 | ** licenses may use this file in accordance with the Qt Commercial License
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| 23 | ** Agreement provided with the Software.
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| 24 | **
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| 25 | ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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| 26 | ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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| 27 | **
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| 28 | ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
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| 29 | ** information about Qt Commercial License Agreements.
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| 30 | ** See http://www.trolltech.com/qpl/ for QPL licensing information.
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| 31 | ** See http://www.trolltech.com/gpl/ for GPL licensing information.
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| 32 | **
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| 33 | ** Contact info@trolltech.com if any conditions of this licensing are
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| 34 | ** not clear to you.
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| 35 | **
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| 36 | **********************************************************************/
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| 37 |
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| 38 | #ifndef QPIXMAP_H
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| 39 | #define QPIXMAP_H
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| 40 |
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| 41 | #ifndef QT_H
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| 42 | #include "qpaintdevice.h"
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| 43 | #include "qcolor.h" // char*->QColor conversion
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| 44 | #include "qstring.h" // char*->QString conversion
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| 45 | #include "qnamespace.h"
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| 46 | #endif // QT_H
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| 47 |
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| 48 | class QGfx;
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| 49 | class QPixmapPrivate;
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| 50 |
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| 51 | #if defined(Q_WS_WIN)
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| 52 | // Internal pixmap memory optimization class for Windows 9x
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| 53 | class QMultiCellPixmap;
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| 54 | #endif
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| 55 |
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| 56 |
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| 57 | class Q_EXPORT QPixmap : public QPaintDevice, public Qt
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| 58 | {
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| 59 | public:
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| 60 | enum ColorMode { Auto, Color, Mono };
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| 61 | enum Optimization { DefaultOptim, NoOptim, MemoryOptim=NoOptim,
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| 62 | NormalOptim, BestOptim };
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| 63 |
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| 64 | QPixmap();
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| 65 | QPixmap( const QImage& image );
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| 66 | QPixmap( int w, int h, int depth = -1, Optimization = DefaultOptim );
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| 67 | QPixmap( const QSize &, int depth = -1, Optimization = DefaultOptim );
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| 68 | #ifndef QT_NO_IMAGEIO
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| 69 | QPixmap( const QString& fileName, const char *format=0,
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| 70 | ColorMode mode=Auto );
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| 71 | QPixmap( const QString& fileName, const char *format,
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| 72 | int conversion_flags );
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| 73 | QPixmap( const char *xpm[] ); // ### in 4.0, 'const char * const xpm[]'?
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| 74 | QPixmap( const QByteArray &data );
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| 75 | #endif
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| 76 | QPixmap( const QPixmap & );
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| 77 | ~QPixmap();
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| 78 |
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| 79 | QPixmap &operator=( const QPixmap & );
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| 80 | QPixmap &operator=( const QImage & );
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| 81 |
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| 82 | bool isNull() const;
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| 83 |
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| 84 | int width() const { return data->w; }
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| 85 | int height() const { return data->h; }
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| 86 | QSize size() const { return QSize(data->w,data->h); }
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| 87 | QRect rect() const { return QRect(0,0,data->w,data->h); }
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| 88 | int depth() const { return data->d; }
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| 89 | static int defaultDepth();
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| 90 |
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| 91 | void fill( const QColor &fillColor = Qt::white );
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| 92 | void fill( const QWidget *, int xofs, int yofs );
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| 93 | void fill( const QWidget *, const QPoint &ofs );
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| 94 | void resize( int width, int height );
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| 95 | void resize( const QSize & );
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| 96 |
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| 97 | const QBitmap *mask() const;
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| 98 | void setMask( const QBitmap & );
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| 99 | bool selfMask() const;
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| 100 | bool hasAlpha() const;
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| 101 | bool hasAlphaChannel() const;
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| 102 | #ifndef QT_NO_IMAGE_HEURISTIC_MASK
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| 103 | QBitmap createHeuristicMask( bool clipTight = TRUE ) const;
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| 104 | #endif
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| 105 | #ifndef QT_NO_MIME
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| 106 | static QPixmap fromMimeSource( const QString& abs_name );
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| 107 | #endif
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| 108 | static QPixmap grabWindow( WId, int x=0, int y=0, int w=-1, int h=-1 );
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| 109 | static QPixmap grabWidget( QWidget * widget,
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| 110 | int x=0, int y=0, int w=-1, int h=-1 );
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| 111 |
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| 112 | #ifndef QT_NO_PIXMAP_TRANSFORMATION
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| 113 | QPixmap xForm( const QWMatrix & ) const;
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| 114 | static QWMatrix trueMatrix( const QWMatrix &, int w, int h );
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| 115 | #endif
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| 116 |
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| 117 | QImage convertToImage() const;
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| 118 | bool convertFromImage( const QImage &, ColorMode mode=Auto );
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| 119 | bool convertFromImage( const QImage &, int conversion_flags );
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| 120 | #ifndef QT_NO_IMAGEIO
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| 121 | static const char* imageFormat( const QString &fileName );
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| 122 | bool load( const QString& fileName, const char *format=0,
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| 123 | ColorMode mode=Auto );
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| 124 | bool load( const QString& fileName, const char *format,
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| 125 | int conversion_flags );
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| 126 | bool loadFromData( const uchar *buf, uint len,
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| 127 | const char* format=0,
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| 128 | ColorMode mode=Auto );
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| 129 | bool loadFromData( const uchar *buf, uint len,
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| 130 | const char* format,
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| 131 | int conversion_flags );
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| 132 | bool loadFromData( const QByteArray &data,
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| 133 | const char* format=0,
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| 134 | int conversion_flags=0 );
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| 135 | bool save( const QString& fileName, const char* format, int quality = -1 ) const;
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| 136 | bool save( QIODevice* device, const char* format, int quality = -1 ) const;
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| 137 | #endif
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| 138 |
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| 139 | #if defined(Q_WS_WIN)
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| 140 | HBITMAP hbm() const;
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| [8] | 141 | #elif defined(Q_WS_PM)
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| 142 | HBITMAP hbm() const;
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| [2] | 143 | #endif
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| 144 |
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| 145 | int serialNumber() const;
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| 146 |
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| 147 | Optimization optimization() const;
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| 148 | void setOptimization( Optimization );
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| 149 | static Optimization defaultOptimization();
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| 150 | static void setDefaultOptimization( Optimization );
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| 151 |
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| 152 | virtual void detach();
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| 153 |
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| 154 | bool isQBitmap() const;
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| 155 |
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| 156 | #if defined(Q_WS_WIN)
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| 157 | // These functions are internal and used by Windows 9x only
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| 158 | bool isMultiCellPixmap() const;
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| 159 | HDC multiCellHandle() const;
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| 160 | HBITMAP multiCellBitmap() const;
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| 161 | int multiCellOffset() const;
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| 162 | int allocCell();
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| 163 | void freeCell( bool = FALSE );
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| [56] | 164 | #elif defined(Q_WS_PM)
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| 165 | static HPOINTER createIcon( bool pointer, int hotX, int hotY,
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| 166 | const QPixmap *normal, const QPixmap *mini );
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| [2] | 167 | #endif
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| 168 |
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| 169 | #if defined(Q_WS_QWS)
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| 170 | virtual QGfx * graphicsContext(bool clip_children=TRUE) const;
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| 171 | virtual unsigned char * scanLine(int) const;
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| 172 | virtual int bytesPerLine() const;
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| 173 | QRgb * clut() const;
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| 174 | int numCols() const;
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| 175 | #elif defined(Q_WS_X11)
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| 176 | static int x11SetDefaultScreen( int screen );
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| 177 | void x11SetScreen( int screen );
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| 178 | #endif
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| 179 |
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| 180 | #ifndef Q_QDOC
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| 181 | Q_DUMMY_COMPARISON_OPERATOR(QPixmap)
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| 182 | #endif
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| 183 |
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| 184 | protected:
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| 185 | QPixmap( int w, int h, const uchar *data, bool isXbitmap );
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| 186 | int metric( int ) const;
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| 187 |
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| 188 | #if defined(Q_WS_WIN)
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| 189 | struct QMCPI { // mem optim for win9x
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| 190 | QMultiCellPixmap *mcp;
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| 191 | int offset;
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| 192 | };
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| 193 | #endif
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| 194 |
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| 195 | struct QPixmapData : public QShared { // internal pixmap data
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| 196 | QCOORD w, h;
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| 197 | short d;
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| 198 | uint uninit : 1;
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| 199 | uint bitmap : 1;
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| 200 | uint selfmask : 1;
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| 201 | #if defined(Q_WS_WIN)
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| 202 | uint mcp : 1;
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| 203 | #endif
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| 204 | int ser_no;
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| 205 | QBitmap *mask;
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| 206 | #if defined(Q_WS_WIN)
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| 207 | QPixmap *maskpm;
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| 208 | union {
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| 209 | HBITMAP hbm; // if mcp == FALSE
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| 210 | QMCPI *mcpi; // if mcp == TRUE
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| 211 | } hbm_or_mcpi;
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| 212 | uchar *realAlphaBits;
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| 213 | #ifdef Q_OS_TEMP
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| 214 | uchar* ppvBits; // Pointer to DIBSection bits
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| 215 | #endif
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| [8] | 216 | #elif defined(Q_WS_PM)
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| 217 | HBITMAP hbm;
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| 218 | HBITMAP maskedHbm; // pixmap precomposed for masking
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| [59] | 219 | bool hasRealAlpha;
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| [8] | 220 | uchar *realAlphaBits;
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| [2] | 221 | #elif defined(Q_WS_X11)
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| 222 | void *ximage;
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| 223 | void *maskgc;
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| 224 | QPixmap *alphapm;
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| 225 | #elif defined(Q_WS_MAC)
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| 226 | ColorTable *clut;
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| 227 | QPixmap *alphapm;
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| 228 | #elif defined(Q_WS_QWS)
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| 229 | int id; // ### should use QPaintDevice::hd, since it is there
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| 230 | QRgb * clut;
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| 231 | int numcols;
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| 232 | int rw;
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| 233 | int rh;
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| 234 | bool hasAlpha;
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| 235 | #endif
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| 236 | Optimization optim;
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| 237 | #if defined(Q_WS_WIN)
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| 238 | HBITMAP old_hbm;
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| 239 | #endif
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| 240 | } *data;
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| 241 | private:
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| 242 | #ifndef QT_NO_IMAGEIO
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| 243 | bool doImageIO( QImageIO* io, int quality ) const;
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| 244 | #endif
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| 245 | QPixmap( int w, int h, int depth, bool, Optimization );
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| 246 | void init( int, int, int, bool, Optimization );
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| 247 | void deref();
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| 248 | QPixmap copy( bool ignoreMask = FALSE ) const;
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| 249 | #if defined(Q_WS_WIN)
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| 250 | void initAlphaPixmap( uchar *bytes, int length, struct tagBITMAPINFO *bmi );
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| 251 | void convertToAlphaPixmap( bool initAlpha=TRUE );
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| 252 | static void bitBltAlphaPixmap( QPixmap *dst, int dx, int dy,
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| 253 | const QPixmap *src, int sx, int sy,
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| 254 | int sw, int sh, bool useDstAlpha );
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| [8] | 255 | #elif defined(Q_WS_PM)
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| [59] | 256 | void prepareForMasking( bool prepare, bool force = FALSE );
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| [56] | 257 | HPOINTER createIcon( bool pointer, int hotX, int hotY, bool mini );
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| [8] | 258 | void attachHandle( HBITMAP hbm );
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| 259 | HBITMAP detachHandle();
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| [59] | 260 | void unfoldAlphaChannel();
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| 261 | void convertToAlpha();
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| 262 | static int trueColorDepth();
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| [8] | 263 | friend class QPMMimeImage;
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| [2] | 264 | #endif
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| 265 | static Optimization defOptim;
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| 266 | friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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| 267 | const QPaintDevice *,
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| 268 | int, int, int, int, RasterOp, bool );
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| 269 | friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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| 270 | const QImage* src,
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| 271 | int, int, int, int, int conversion_flags );
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| 272 | friend Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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| 273 | const QPixmap *src, int sx, int sy,
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| 274 | int sw, int sh );
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| 275 |
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| 276 | #if defined(Q_WS_MAC)
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| 277 | friend void unclippedScaledBitBlt(QPaintDevice *, int, int, int, int,
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| 278 | const QPaintDevice *, int, int, int, int,
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| 279 | Qt::RasterOp, bool, bool);
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| 280 | #endif
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| 281 |
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| 282 | friend class QBitmap;
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| 283 | friend class QPaintDevice;
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| 284 | friend class QPainter;
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| 285 | friend class QGLWidget;
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| 286 | };
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| 287 |
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| 288 |
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| 289 | inline bool QPixmap::isNull() const
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| 290 | {
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| 291 | return data->w == 0;
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| 292 | }
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| 293 |
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| 294 | inline void QPixmap::fill( const QWidget *w, const QPoint &ofs )
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| 295 | {
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| 296 | fill( w, ofs.x(), ofs.y() );
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| 297 | }
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| 298 |
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| 299 | inline void QPixmap::resize( const QSize &s )
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| 300 | {
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| 301 | resize( s.width(), s.height() );
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| 302 | }
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| 303 |
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| 304 | inline const QBitmap *QPixmap::mask() const
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| 305 | {
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| 306 | return data->mask;
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| 307 | }
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| 308 |
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| 309 | inline bool QPixmap::selfMask() const
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| 310 | {
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| 311 | return data->selfmask;
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| 312 | }
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| 313 |
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| 314 | #if defined(Q_WS_WIN)
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| 315 | inline HBITMAP QPixmap::hbm() const
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| 316 | {
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| 317 | return data->mcp ? 0 : data->hbm_or_mcpi.hbm;
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| 318 | }
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| [8] | 319 | #elif defined(Q_WS_PM)
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| 320 | inline HBITMAP QPixmap::hbm() const
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| 321 | {
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| 322 | return data->hbm;
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| 323 | }
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| [2] | 324 | #endif
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| 325 |
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| 326 | inline int QPixmap::serialNumber() const
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| 327 | {
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| 328 | return data->ser_no;
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| 329 | }
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| 330 |
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| 331 | inline QPixmap::Optimization QPixmap::optimization() const
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| 332 | {
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| 333 | return data->optim;
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| 334 | }
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| 335 |
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| 336 | inline bool QPixmap::isQBitmap() const
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| 337 | {
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| 338 | return data->bitmap;
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| 339 | }
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| 340 |
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| 341 | #if defined(Q_WS_WIN)
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| 342 | inline bool QPixmap::isMultiCellPixmap() const
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| 343 | {
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| 344 | return data->mcp;
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| 345 | }
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| 346 | #endif
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| 347 |
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| 348 |
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| 349 | /*****************************************************************************
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| 350 | QPixmap stream functions
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| 351 | *****************************************************************************/
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| 352 |
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| 353 | #if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
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| 354 | Q_EXPORT QDataStream &operator<<( QDataStream &, const QPixmap & );
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| 355 | Q_EXPORT QDataStream &operator>>( QDataStream &, QPixmap & );
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| 356 | #endif
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| 357 |
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| 358 | /*****************************************************************************
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| 359 | QPixmap (and QImage) helper functions
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| 360 | *****************************************************************************/
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| 361 |
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| 362 | #ifndef QT_NO_PIXMAP_TRANSFORMATION
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| 363 | # define QT_XFORM_TYPE_MSBFIRST 0
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| 364 | # define QT_XFORM_TYPE_LSBFIRST 1
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| 365 | # if defined(Q_WS_WIN)
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| 366 | # define QT_XFORM_TYPE_WINDOWSPIXMAP 2
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| 367 | # endif
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| 368 | bool qt_xForm_helper( const QWMatrix&, int, int, int, uchar*, int, int, int, uchar*, int, int, int );
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| 369 | #endif
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| 370 |
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| 371 | Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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| 372 | const QPixmap *src, int sx = 0, int sy = 0,
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| 373 | int sw = -1, int sh = -1 );
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| 374 |
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| 375 | #endif // QPIXMAP_H
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