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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
60QT_BEGIN_NAMESPACE
61
62class QMacPixmapData : public QPixmapData
63{
64public:
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
87private:
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 uint pixelsSize;
111 quint32 *pixelsToFree;
112 uint bytesPerRow;
113 QRectF cg_mask_rect;
114 CGImageRef cg_data, cg_dataBeingReleased, cg_mask;
115 static QSet<QMacPixmapData*> validDataPointers;
116
117 QPaintEngine *pengine;
118
119 friend class QPixmap;
120 friend class QRasterBuffer;
121 friend class QRasterPaintEngine;
122 friend class QCoreGraphicsPaintEngine;
123 friend CGImageRef qt_mac_create_imagemask(const QPixmap&, const QRectF&);
124 friend quint32 *qt_mac_pixmap_get_base(const QPixmap*);
125 friend int qt_mac_pixmap_get_bytes_per_line(const QPixmap*);
126 friend void qt_mac_cgimage_data_free(void *, const void*, size_t);
127 friend IconRef qt_mac_create_iconref(const QPixmap&);
128 friend CGContextRef qt_mac_cg_context(const QPaintDevice*);
129 friend QColor qcolorForThemeTextColor(ThemeTextColor themeColor);
130};
131
132QT_END_NAMESPACE
133
134#endif // QPIXMAP_MAC_P_H
135

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