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355 lines
10 KiB
355 lines
10 KiB
/****************************************************************************
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**
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** Definition of QPixmap class
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**
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** Created : 940501
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**
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** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
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**
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** This file is part of the kernel module of the Qt GUI Toolkit.
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**
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** This file may be used under the terms of the GNU General
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** Public License versions 2.0 or 3.0 as published by the Free
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** Software Foundation and appearing in the files LICENSE.GPL2
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** and LICENSE.GPL3 included in the packaging of this file.
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** Alternatively you may (at your option) use any later version
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** of the GNU General Public License if such license has been
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** publicly approved by Trolltech ASA (or its successors, if any)
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** and the KDE Free Qt Foundation.
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**
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** Please review the following information to ensure GNU General
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** Public Licensing requirements will be met:
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** http://trolltech.com/products/qt/licenses/licensing/opensource/.
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** If you are unsure which license is appropriate for your use, please
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** review the following information:
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** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
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** or contact the sales department at sales@trolltech.com.
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**
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** This file may be used under the terms of the Q Public License as
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** defined by Trolltech ASA and appearing in the file LICENSE.QPL
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** included in the packaging of this file. Licensees holding valid Qt
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** Commercial licenses may use this file in accordance with the Qt
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** Commercial License Agreement provided with the Software.
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**
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** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
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** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
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** herein.
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**
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**********************************************************************/
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#ifndef QPIXMAP_H
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#define QPIXMAP_H
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#ifndef QT_H
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#include "qpaintdevice.h"
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#include "qcolor.h" // char*->QColor conversion
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#include "qstring.h" // char*->QString conversion
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#include "qnamespace.h"
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#endif // QT_H
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class QGfx;
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class QPixmapPrivate;
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#if defined(Q_WS_WIN)
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// Internal pixmap memory optimization class for Windows 9x
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class QMultiCellPixmap;
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#endif
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class Q_EXPORT QPixmap : public QPaintDevice, public Qt
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{
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public:
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enum ColorMode { Auto, Color, Mono };
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enum Optimization { DefaultOptim, NoOptim, MemoryOptim=NoOptim,
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NormalOptim, BestOptim };
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QPixmap();
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QPixmap( const QImage& image );
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QPixmap( int w, int h, int depth = -1, Optimization = DefaultOptim );
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QPixmap( const QSize &, int depth = -1, Optimization = DefaultOptim );
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#ifndef QT_NO_IMAGEIO
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QPixmap( const QString& fileName, const char *format=0,
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ColorMode mode=Auto );
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QPixmap( const QString& fileName, const char *format,
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int conversion_flags );
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QPixmap( const char *xpm[] ); // ### in 4.0, 'const char * const xpm[]'?
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QPixmap( const QByteArray &data );
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#endif
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QPixmap( const QPixmap & );
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~QPixmap();
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QPixmap &operator=( const QPixmap & );
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QPixmap &operator=( const QImage & );
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bool isNull() const;
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int width() const { return data->w; }
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int height() const { return data->h; }
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QSize size() const { return QSize(data->w,data->h); }
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QRect rect() const { return QRect(0,0,data->w,data->h); }
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int depth() const { return data->d; }
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static int defaultDepth();
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void fill( const QColor &fillColor = Qt::white );
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void fill( const QWidget *, int xofs, int yofs );
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void fill( const QWidget *, const QPoint &ofs );
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void resize( int width, int height );
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void resize( const QSize & );
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const QBitmap *mask() const;
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void setMask( const QBitmap & );
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bool selfMask() const;
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bool hasAlpha() const;
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bool hasAlphaChannel() const;
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#ifndef QT_NO_IMAGE_HEURISTIC_MASK
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QBitmap createHeuristicMask( bool clipTight = TRUE ) const;
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#endif
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#ifndef QT_NO_MIME
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static QPixmap fromMimeSource( const QString& abs_name );
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#endif
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static QPixmap grabWindow( WId, int x=0, int y=0, int w=-1, int h=-1 );
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static QPixmap grabWidget( QWidget * widget,
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int x=0, int y=0, int w=-1, int h=-1 );
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#ifndef QT_NO_PIXMAP_TRANSFORMATION
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QPixmap xForm( const QWMatrix & ) const;
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static QWMatrix trueMatrix( const QWMatrix &, int w, int h );
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#endif
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QImage convertToImage() const;
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bool convertFromImage( const QImage &, ColorMode mode=Auto );
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bool convertFromImage( const QImage &, int conversion_flags );
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#ifndef QT_NO_IMAGEIO
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static const char* imageFormat( const QString &fileName );
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bool load( const QString& fileName, const char *format=0,
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ColorMode mode=Auto );
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bool load( const QString& fileName, const char *format,
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int conversion_flags );
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bool loadFromData( const uchar *buf, uint len,
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const char* format=0,
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ColorMode mode=Auto );
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bool loadFromData( const uchar *buf, uint len,
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const char* format,
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int conversion_flags );
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bool loadFromData( const QByteArray &data,
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const char* format=0,
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int conversion_flags=0 );
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bool save( const QString& fileName, const char* format, int quality = -1 ) const;
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bool save( QIODevice* device, const char* format, int quality = -1 ) const;
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#endif
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#if defined(Q_WS_WIN)
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HBITMAP hbm() const;
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#endif
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int serialNumber() const;
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Optimization optimization() const;
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void setOptimization( Optimization );
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static Optimization defaultOptimization();
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static void setDefaultOptimization( Optimization );
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virtual void detach();
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bool isQBitmap() const;
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#if defined(Q_WS_WIN)
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// These functions are internal and used by Windows 9x only
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bool isMultiCellPixmap() const;
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HDC multiCellHandle() const;
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HBITMAP multiCellBitmap() const;
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int multiCellOffset() const;
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int allocCell();
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void freeCell( bool = FALSE );
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#endif
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#if defined(Q_WS_QWS)
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virtual QGfx * graphicsContext(bool clip_children=TRUE) const;
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virtual unsigned char * scanLine(int) const;
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virtual int bytesPerLine() const;
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QRgb * clut() const;
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int numCols() const;
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#elif defined(Q_WS_X11)
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static int x11SetDefaultScreen( int screen );
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void x11SetScreen( int screen );
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#endif
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#ifndef Q_QDOC
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Q_DUMMY_COMPARISON_OPERATOR(QPixmap)
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#endif
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protected:
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QPixmap( int w, int h, const uchar *data, bool isXbitmap );
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int metric( int ) const;
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#if defined(Q_WS_WIN)
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struct QMCPI { // mem optim for win9x
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QMultiCellPixmap *mcp;
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int offset;
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};
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#endif
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struct QPixmapData : public QShared { // internal pixmap data
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QCOORD w, h;
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short d;
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uint uninit : 1;
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uint bitmap : 1;
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uint selfmask : 1;
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#if defined(Q_WS_WIN)
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uint mcp : 1;
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#endif
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int ser_no;
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QBitmap *mask;
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#if defined(Q_WS_WIN)
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QPixmap *maskpm;
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union {
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HBITMAP hbm; // if mcp == FALSE
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QMCPI *mcpi; // if mcp == TRUE
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} hbm_or_mcpi;
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uchar *realAlphaBits;
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#ifdef Q_OS_TEMP
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uchar* ppvBits; // Pointer to DIBSection bits
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#endif
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#elif defined(Q_WS_X11)
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void *ximage;
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void *maskgc;
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QPixmap *alphapm;
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#elif defined(Q_WS_MAC)
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ColorTable *clut;
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QPixmap *alphapm;
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#elif defined(Q_WS_QWS)
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int id; // ### should use QPaintDevice::hd, since it is there
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QRgb * clut;
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int numcols;
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int rw;
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int rh;
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bool hasAlpha;
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#endif
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Optimization optim;
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#if defined(Q_WS_WIN)
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HBITMAP old_hbm;
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#endif
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} *data;
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private:
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#ifndef QT_NO_IMAGEIO
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bool doImageIO( QImageIO* io, int quality ) const;
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#endif
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QPixmap( int w, int h, int depth, bool, Optimization );
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void init( int, int, int, bool, Optimization );
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void deref();
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QPixmap copy( bool ignoreMask = FALSE ) const;
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#if defined(Q_WS_WIN)
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void initAlphaPixmap( uchar *bytes, int length, struct tagBITMAPINFO *bmi );
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void convertToAlphaPixmap( bool initAlpha=TRUE );
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static void bitBltAlphaPixmap( QPixmap *dst, int dx, int dy,
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const QPixmap *src, int sx, int sy,
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int sw, int sh, bool useDstAlpha );
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#endif
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static Optimization defOptim;
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friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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const QPaintDevice *,
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int, int, int, int, RasterOp, bool );
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friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
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const QImage* src,
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int, int, int, int, int conversion_flags );
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friend Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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const QPixmap *src, int sx, int sy,
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int sw, int sh );
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#if defined(Q_WS_MAC)
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friend void unclippedScaledBitBlt(QPaintDevice *, int, int, int, int,
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const QPaintDevice *, int, int, int, int,
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Qt::RasterOp, bool, bool);
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#endif
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friend class QBitmap;
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friend class QPaintDevice;
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friend class QPainter;
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friend class QGLWidget;
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};
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inline bool QPixmap::isNull() const
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{
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return data->w == 0;
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}
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inline void QPixmap::fill( const QWidget *w, const QPoint &ofs )
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{
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fill( w, ofs.x(), ofs.y() );
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}
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inline void QPixmap::resize( const QSize &s )
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{
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resize( s.width(), s.height() );
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}
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inline const QBitmap *QPixmap::mask() const
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{
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return data->mask;
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}
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inline bool QPixmap::selfMask() const
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{
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return data->selfmask;
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}
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#if defined(Q_WS_WIN)
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inline HBITMAP QPixmap::hbm() const
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{
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return data->mcp ? 0 : data->hbm_or_mcpi.hbm;
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}
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#endif
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inline int QPixmap::serialNumber() const
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{
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return data->ser_no;
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}
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inline QPixmap::Optimization QPixmap::optimization() const
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{
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return data->optim;
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}
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inline bool QPixmap::isQBitmap() const
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{
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return data->bitmap;
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}
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#if defined(Q_WS_WIN)
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inline bool QPixmap::isMultiCellPixmap() const
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{
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return data->mcp;
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}
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#endif
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/*****************************************************************************
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QPixmap stream functions
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*****************************************************************************/
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#if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
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Q_EXPORT QDataStream &operator<<( QDataStream &, const QPixmap & );
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Q_EXPORT QDataStream &operator>>( QDataStream &, QPixmap & );
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#endif
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/*****************************************************************************
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QPixmap (and QImage) helper functions
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*****************************************************************************/
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#ifndef QT_NO_PIXMAP_TRANSFORMATION
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# define QT_XFORM_TYPE_MSBFIRST 0
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# define QT_XFORM_TYPE_LSBFIRST 1
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# if defined(Q_WS_WIN)
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# define QT_XFORM_TYPE_WINDOWSPIXMAP 2
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# endif
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bool qt_xForm_helper( const QWMatrix&, int, int, int, uchar*, int, int, int, uchar*, int, int, int );
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#endif
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Q_EXPORT void copyBlt( QPixmap *dst, int dx, int dy,
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const QPixmap *src, int sx = 0, int sy = 0,
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int sw = -1, int sh = -1 );
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#endif // QPIXMAP_H
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