Create qpixmap.h

Author: vashshawn

src/qt/qpixmap.h

@@ -0,0 +1,322 @@
+/****************************************************************************
+** $Id:  qt/qpixmap.h   3.0.5   edited Oct 17 2001 $
+**
+** 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 [email protected] 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 [email protected] 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