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- /****************************************************************************
- ** $Id: qt/qpixmap.h 3.0.3 edited Oct 17 18:43 $
- **
- ** Definition of QPixmap class
- **
- ** Created : 940501
- **
- ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
- **
- ** This file is part of the kernel module of the Qt GUI Toolkit.
- **
- ** This file may be distributed under the terms of the Q Public License
- ** as defined by Trolltech AS of Norway and appearing in the file
- ** LICENSE.QPL included in the packaging of this file.
- **
- ** This file may be distributed and/or modified under the terms of the
- ** GNU General Public License version 2 as published by the Free Software
- ** Foundation and appearing in the file LICENSE.GPL included in the
- ** packaging of this file.
- **
- ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
- ** licenses may use this file in accordance with the Qt Commercial License
- ** Agreement provided with the Software.
- **
- ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
- ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- **
- ** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
- ** information about Qt Commercial License Agreements.
- ** See http://www.trolltech.com/qpl/ for QPL licensing information.
- ** See http://www.trolltech.com/gpl/ for GPL licensing information.
- **
- ** Contact info@trolltech.com if any conditions of this licensing are
- ** not clear to you.
- **
- **********************************************************************/
-
- #ifndef QPIXMAP_H
- #define QPIXMAP_H
-
- #ifndef QT_H
- #include "qpaintdevice.h"
- #include "qcolor.h" // char*->QColor conversion
- #include "qstring.h" // char*->QString conversion
- #include "qnamespace.h"
- #endif // QT_H
-
- class QGfx;
- class QPixmapPrivate;
-
- #if defined(Q_WS_WIN)
- // Internal pixmap memory optimization class for Windows 9x
- class QMultiCellPixmap;
- #endif
-
-
- class Q_EXPORT QPixmap : public QPaintDevice, public Qt
- {
- public:
- enum ColorMode { Auto, Color, Mono };
- enum Optimization { DefaultOptim, NoOptim, MemoryOptim=NoOptim,
- NormalOptim, BestOptim };
-
- QPixmap();
- QPixmap( const QImage& image );
- QPixmap( int w, int h, int depth = -1, Optimization = DefaultOptim );
- QPixmap( const QSize &, int depth = -1, Optimization = DefaultOptim );
- #ifndef QT_NO_IMAGEIO
- QPixmap( const QString& fileName, const char *format=0,
- ColorMode mode=Auto );
- QPixmap( const QString& fileName, const char *format,
- int conversion_flags );
- QPixmap( const char *xpm[] ); // ### in 4.0, 'const char * const xpm[]'?
- QPixmap( const QByteArray &data );
- #endif
- QPixmap( const QPixmap & );
- ~QPixmap();
-
- QPixmap &operator=( const QPixmap & );
- QPixmap &operator=( const QImage & );
-
- bool isNull() const;
-
- int width() const { return data->w; }
- int height() const { return data->h; }
- QSize size() const { return QSize(data->w,data->h); }
- QRect rect() const { return QRect(0,0,data->w,data->h); }
- int depth() const { return data->d; }
- static int defaultDepth();
-
- void fill( const QColor &fillColor = Qt::white );
- void fill( const QWidget *, int xofs, int yofs );
- void fill( const QWidget *, const QPoint &ofs );
- void resize( int width, int height );
- void resize( const QSize & );
-
- const QBitmap *mask() const;
- void setMask( const QBitmap & );
- bool selfMask() const;
- #ifndef QT_NO_IMAGE_HEURISTIC_MASK
- QBitmap createHeuristicMask( bool clipTight = TRUE ) const;
- #endif
- static QPixmap grabWindow( WId, int x=0, int y=0, int w=-1, int h=-1 );
- static QPixmap grabWidget( QWidget * widget,
- int x=0, int y=0, int w=-1, int h=-1 );
-
- #ifndef QT_NO_PIXMAP_TRANSFORMATION
- QPixmap xForm( const QWMatrix & ) const;
- static QWMatrix trueMatrix( const QWMatrix &, int w, int h );
- #endif
-
- QImage convertToImage() const;
- bool convertFromImage( const QImage &, ColorMode mode=Auto );
- bool convertFromImage( const QImage &, int conversion_flags );
- #ifndef QT_NO_IMAGEIO
- static const char* imageFormat( const QString &fileName );
- bool load( const QString& fileName, const char *format=0,
- ColorMode mode=Auto );
- bool load( const QString& fileName, const char *format,
- int conversion_flags );
- bool loadFromData( const uchar *buf, uint len,
- const char* format=0,
- ColorMode mode=Auto );
- bool loadFromData( const uchar *buf, uint len,
- const char* format,
- int conversion_flags );
- bool loadFromData( const QByteArray &data,
- const char* format=0,
- int conversion_flags=0 );
- bool save( const QString& fileName, const char* format, int quality = -1 ) const;
- #endif
-
- #if defined(Q_WS_WIN)
- HBITMAP hbm() const;
- #endif
-
- int serialNumber() const;
-
- Optimization optimization() const;
- void setOptimization( Optimization );
- static Optimization defaultOptimization();
- static void setDefaultOptimization( Optimization );
-
- virtual void detach();
-
- bool isQBitmap() const;
-
- #if defined(Q_WS_WIN)
- // These functions are internal and used by Windows 9x only
- bool isMultiCellPixmap() const;
- HDC multiCellHandle() const;
- HBITMAP multiCellBitmap() const;
- int multiCellOffset() const;
- int allocCell();
- void freeCell( bool = FALSE );
- #endif
-
- #if defined(Q_WS_QWS)
- virtual QGfx * graphicsContext(bool clip_children=TRUE) const;
- virtual unsigned char * scanLine(int) const;
- virtual int bytesPerLine() const;
- QRgb * clut() const;
- int numCols() const;
- #elif defined(Q_WS_X11)
- static int x11SetDefaultScreen( int screen );
- void x11SetScreen( int screen );
- #endif
-
- #if defined(Q_FULL_TEMPLATE_INSTANTIATION)
- bool operator==( const QPixmap& ) const { return FALSE; }
- #endif
-
- protected:
- QPixmap( int w, int h, const uchar *data, bool isXbitmap );
- int metric( int ) const;
-
- #if defined(Q_WS_WIN)
- struct QMCPI { // mem optim for win9x
- QMultiCellPixmap *mcp;
- int offset;
- };
- #endif
-
- struct QPixmapData : public QShared { // internal pixmap data
- QCOORD w, h;
- short d;
- uint uninit : 1;
- uint bitmap : 1;
- uint selfmask : 1;
- #if defined(Q_WS_WIN)
- uint mcp : 1;
- #endif
- int ser_no;
- QBitmap *mask;
- #if defined(Q_WS_WIN)
- void *bits;
- QPixmap *maskpm;
- union {
- HBITMAP hbm; // if mcp == FALSE
- QMCPI *mcpi; // if mcp == TRUE
- } hbm_or_mcpi;
- bool hasRealAlpha;
- #elif defined(Q_WS_X11)
- void *ximage;
- void *maskgc;
- QPixmap *alphapm;
- #elif defined(Q_WS_MAC)
- ColorTable *clut;
- #elif defined(Q_WS_QWS)
- int id; // ### should use QPaintDevice::hd, since it is there
- QRgb * clut;
- int numcols;
- int rw;
- int rh;
- bool hasAlpha;
- #endif
- Optimization optim;
- } *data;
- private:
- QPixmap( int w, int h, int depth, bool, Optimization );
- void init( int, int, int, bool, Optimization );
- void deref();
- QPixmap copy( bool ignoreMask = FALSE ) const;
- static Optimization defOptim;
- friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
- const QPaintDevice *,
- int, int, int, int, RasterOp, bool );
- friend Q_EXPORT void bitBlt( QPaintDevice *, int, int,
- const QImage* src,
- int, int, int, int, int conversion_flags );
-
- #if defined(Q_WS_X11) && !defined(QT_NO_XRENDER)
- friend void qt_x11_copy_alpha_pixmap(QPixmap *dst, const QPixmap *src);
- friend void qt_x11_blit_alpha_pixmap(QPixmap *dst, int dx, int dy,
- const QPixmap *src, int sx = 0, int sy = 0,
- int sw = -1, int sh = -1);
- #endif
-
- friend class QBitmap;
- friend class QPaintDevice;
- friend class QPainter;
- };
-
-
- inline bool QPixmap::isNull() const
- {
- return data->w == 0;
- }
-
- inline void QPixmap::fill( const QWidget *w, const QPoint &ofs )
- {
- fill( w, ofs.x(), ofs.y() );
- }
-
- inline void QPixmap::resize( const QSize &s )
- {
- resize( s.width(), s.height() );
- }
-
- inline const QBitmap *QPixmap::mask() const
- {
- return data->mask;
- }
-
- inline bool QPixmap::selfMask() const
- {
- return data->selfmask;
- }
-
- #if defined(Q_WS_WIN)
- inline HBITMAP QPixmap::hbm() const
- {
- return data->mcp ? 0 : data->hbm_or_mcpi.hbm;
- }
- #endif
-
- inline int QPixmap::serialNumber() const
- {
- return data->ser_no;
- }
-
- inline QPixmap::Optimization QPixmap::optimization() const
- {
- return data->optim;
- }
-
- inline bool QPixmap::isQBitmap() const
- {
- return data->bitmap;
- }
-
- #if defined(Q_WS_WIN)
- inline bool QPixmap::isMultiCellPixmap() const
- {
- return data->mcp;
- }
- #endif
-
-
- /*****************************************************************************
- QPixmap stream functions
- *****************************************************************************/
-
- #if !defined(QT_NO_DATASTREAM) && !defined(QT_NO_IMAGEIO)
- Q_EXPORT QDataStream &operator<<( QDataStream &, const QPixmap & );
- Q_EXPORT QDataStream &operator>>( QDataStream &, QPixmap & );
- #endif
-
- /*****************************************************************************
- QPixmap (and QImage) helper functions
- *****************************************************************************/
-
- #ifndef QT_NO_PIXMAP_TRANSFORMATION
- # define QT_XFORM_TYPE_MSBFIRST 0
- # define QT_XFORM_TYPE_LSBFIRST 1
- # if defined(Q_WS_WIN)
- # define QT_XFORM_TYPE_WINDOWSPIXMAP 2
- # endif
- bool qt_xForm_helper( const QWMatrix&, int, int, int, uchar*, int, int, int, uchar*, int, int, int );
- #endif
-
- #endif // QPIXMAP_H
-