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    41 

    42 #ifndef QPIXMAP_MAC_P_H

    43 #define QPIXMAP_MAC_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <QtGui/private/qpixmapdata_p.h>

    57 #include <QtGui/private/qpixmapdatafactory_p.h>

    58 #include <QtGui/private/qt_mac_p.h>

    59 

    60 QT_BEGIN_NAMESPACE

    61 

    62 class QMacPixmapData : public QPixmapData

    63 {

    64 public:

    65     QMacPixmapData(PixelType type);

    66     ~QMacPixmapData();

    67 

    68     QPixmapData *createCompatiblePixmapData() const;

    69 

    70     void resize(int width, int height);

    71     void fromImage(const QImage &image, Qt::ImageConversionFlags flags);

    72     void copy(const QPixmapData *data, const QRect &rect);

    73     bool scroll(int dx, int dy, const QRect &rect);

    74 

    75     int metric(QPaintDevice::PaintDeviceMetric metric) const;

    76     void fill(const QColor &color);

    77     QBitmap mask() const;

    78     void setMask(const QBitmap &mask);

    79     bool hasAlphaChannel() const;

    80 //     QPixmap transformed(const QTransform &matrix,

    81 //                         Qt::TransformationMode mode) const;

    82     void setAlphaChannel(const QPixmap &alphaChannel);

    83     QPixmap alphaChannel() const;

    84     QImage toImage() const;

    85     QPaintEngine* paintEngine() const;

    86 

    87 private:

    88 

    89     uint has_alpha : 1, has_mask : 1, uninit : 1;

    90 

    91     void macSetHasAlpha(bool b);

    92     void macGetAlphaChannel(QMacPixmapData *, bool asMask) const;

    93     void macSetAlphaChannel(const QMacPixmapData *, bool asMask);

    94     void macCreateCGImageRef();

    95     void macCreatePixels();

    96     void macReleaseCGImageRef();

    97     /*

    98         pixels stores the pixmap data. pixelsToFree is either 0 or some memory

    99         block that was bound to a CGImageRef and released, and for which the

   100         release callback has been called. There are two uses to pixelsToFree:

   101 

   102         1. If pixels == pixelsToFree, then we know that the CGImageRef is done\

   103            with the data and we can modify pixels without breaking CGImageRef's

   104            mutability invariant.

   105 

   106         2. If pixels != pixelsToFree and pixelsToFree != 0, then we can reuse

   107            pixelsToFree later on instead of malloc'ing memory.

   108     */

   109     quint32 *pixels;

   110     quint32 *pixelsToFree;

   111     uint bytesPerRow;

   112     QRectF cg_mask_rect;

   113     CGImageRef cg_data, cg_dataBeingReleased, cg_mask;

   114     static QSet<QMacPixmapData*> validDataPointers;

   115 

   116     QPaintEngine *pengine;

   117 

   118     friend class QPixmap;

   119     friend class QRasterBuffer;

   120     friend class QRasterPaintEngine;

   121     friend class QCoreGraphicsPaintEngine;

   122     friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&);

   123     friend quint32 *qt_mac_pixmap_get_base(const QPixmap*);

   124     friend int qt_mac_pixmap_get_bytes_per_line(const QPixmap*);

   125     friend void qt_mac_cgimage_data_free(void *, const void*, size_t);

   126     friend IconRef qt_mac_create_iconref(const QPixmap&);

   127     friend CGContextRef qt_mac_cg_context(const QPaintDevice*);

   128     friend QColor qcolorForThemeTextColor(ThemeTextColor themeColor);

   129 };

   130 

   131 QT_END_NAMESPACE

   132 

   133 #endif // QPIXMAP_MAC_P_H