Flow Visualization 1.0

qtprivate_pixmapdata_p.h

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00015 ** GNU Lesser General Public License Usage
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00028 ** GNU General Public License Usage
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00041 
00042 #ifndef QPIXMAPDATA_P_H
00043 #define QPIXMAPDATA_P_H
00044 
00045 //
00046 //  W A R N I N G
00047 //  -------------
00048 //
00049 // This file is not part of the Qt API.  It exists purely as an
00050 // implementation detail.  This header file may change from version to
00051 // version without notice, or even be removed.
00052 //
00053 // We mean it.
00054 //
00055 
00056 #include <QtGui/qpixmap.h>
00057 #include <QtCore/qatomic.h>
00058 
00059 QT_BEGIN_NAMESPACE
00060 
00061 class Q_GUI_EXPORT QPixmapData
00062 {
00063 public:
00064     enum PixelType {
00065         // WARNING: Do not change the first two
00066         // Must match QPixmap::Type
00067         PixmapType, BitmapType
00068     };
00069     enum ClassId { RasterClass, X11Class, MacClass, DirectFBClass,
00070                    OpenGLClass, OpenVGClass, CustomClass = 1024 };
00071 
00072     QPixmapData(PixelType pixelpType, int classId);
00073     virtual ~QPixmapData();
00074 
00075     virtual void resize(int width, int height) = 0;
00076     virtual void fromImage(const QImage &image,
00077                            Qt::ImageConversionFlags flags) = 0;
00078     virtual void fromFile(const QString &filename, const char *format,
00079                           Qt::ImageConversionFlags flags);
00080     virtual void copy(const QPixmapData *data, const QRect &rect);
00081 
00082     virtual int metric(QPaintDevice::PaintDeviceMetric metric) const = 0;
00083     virtual void fill(const QColor &color) = 0;
00084     virtual QBitmap mask() const;
00085     virtual void setMask(const QBitmap &mask);
00086     virtual bool hasAlphaChannel() const = 0;
00087     virtual QPixmap transformed(const QTransform &matrix,
00088                                 Qt::TransformationMode mode) const;
00089     virtual void setAlphaChannel(const QPixmap &alphaChannel);
00090     virtual QPixmap alphaChannel() const;
00091     virtual QImage toImage() const = 0;
00092     virtual QPaintEngine* paintEngine() const = 0;
00093 
00094     inline int serialNumber() const { return ser_no; }
00095 
00096     inline PixelType pixelType() const { return type; }
00097     inline ClassId classId() const { return static_cast<ClassId>(id); }
00098 
00099     virtual QImage* buffer();
00100 
00101     int width() const { return metric(QPaintDevice::PdmWidth); }
00102     int height() const { return metric(QPaintDevice::PdmHeight); }
00103     int numColors() const { return metric(QPaintDevice::PdmNumColors); }
00104     int depth() const { return metric(QPaintDevice::PdmDepth); }
00105 
00106 protected:
00107     void setSerialNumber(int serNo);
00108 
00109 private:
00110     friend class QPixmap;
00111     friend class QGLContextPrivate;
00112     friend class QX11PixmapData;
00113 
00114     QAtomicInt ref;
00115     int detach_no;
00116 
00117     PixelType type;
00118     int id;
00119     int ser_no;
00120     uint is_cached;
00121 };
00122 
00123 #ifdef Q_WS_WIN
00124 #ifndef Q_OS_WINCE
00125 QPixmap convertHIconToPixmap( const HICON icon);
00126 #else
00127 QPixmap convertHIconToPixmap( const HICON icon, bool large = false);
00128 #endif
00129 QPixmap loadIconFromShell32( int resourceId, int size );
00130 #endif
00131 
00132 #  define QT_XFORM_TYPE_MSBFIRST 0
00133 #  define QT_XFORM_TYPE_LSBFIRST 1
00134 #  if defined(Q_WS_WIN)
00135 #    define QT_XFORM_TYPE_WINDOWSPIXMAP 2
00136 #  endif
00137 extern bool qt_xForm_helper(const QTransform&, int, int, int, uchar*, int, int, int, const uchar*, int, int, int);
00138 
00139 QT_END_NAMESPACE
00140 
00141 #endif // QPIXMAPDATA_P_H