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39 | |
40 | #ifndef QPLATFORMPIXMAP_H |
41 | #define QPLATFORMPIXMAP_H |
42 | |
43 | // |
44 | // W A R N I N G |
45 | // ------------- |
46 | // |
47 | // This file is part of the QPA API and is not meant to be used |
48 | // in applications. Usage of this API may make your code |
49 | // source and binary incompatible with future versions of Qt. |
50 | // |
51 | |
52 | #include <QtGui/qtguiglobal.h> |
53 | #include <QtGui/qpixmap.h> |
54 | #include <QtCore/qatomic.h> |
55 | |
56 | QT_BEGIN_NAMESPACE |
57 | |
58 | |
59 | class QImageReader; |
60 | |
61 | class Q_GUI_EXPORT QPlatformPixmap |
62 | { |
63 | public: |
64 | enum PixelType { |
65 | // WARNING: Do not change the first two |
66 | // Must match QPixmap::Type |
67 | PixmapType, BitmapType |
68 | }; |
69 | |
70 | enum ClassId { RasterClass, DirectFBClass, |
71 | BlitterClass, Direct2DClass, |
72 | X11Class, CustomClass = 1024 }; |
73 | |
74 | QPlatformPixmap(PixelType pixelType, int classId); |
75 | virtual ~QPlatformPixmap(); |
76 | |
77 | virtual QPlatformPixmap *createCompatiblePlatformPixmap() const; |
78 | |
79 | virtual void resize(int width, int height) = 0; |
80 | virtual void fromImage(const QImage &image, |
81 | Qt::ImageConversionFlags flags) = 0; |
82 | virtual void fromImageInPlace(QImage &image, |
83 | Qt::ImageConversionFlags flags) |
84 | { |
85 | fromImage(image, flags); |
86 | } |
87 | |
88 | virtual void fromImageReader(QImageReader *imageReader, |
89 | Qt::ImageConversionFlags flags); |
90 | |
91 | virtual bool fromFile(const QString &filename, const char *format, |
92 | Qt::ImageConversionFlags flags); |
93 | virtual bool fromData(const uchar *buffer, uint len, const char *format, |
94 | Qt::ImageConversionFlags flags); |
95 | |
96 | virtual void copy(const QPlatformPixmap *data, const QRect &rect); |
97 | virtual bool scroll(int dx, int dy, const QRect &rect); |
98 | |
99 | virtual int metric(QPaintDevice::PaintDeviceMetric metric) const = 0; |
100 | virtual void fill(const QColor &color) = 0; |
101 | |
102 | virtual QBitmap mask() const; |
103 | virtual void setMask(const QBitmap &mask); |
104 | |
105 | virtual bool hasAlphaChannel() const = 0; |
106 | virtual QPixmap transformed(const QTransform &matrix, |
107 | Qt::TransformationMode mode) const; |
108 | |
109 | virtual QImage toImage() const = 0; |
110 | virtual QImage toImage(const QRect &rect) const; |
111 | virtual QPaintEngine* paintEngine() const = 0; |
112 | |
113 | inline int serialNumber() const { return ser_no; } |
114 | |
115 | inline PixelType pixelType() const { return type; } |
116 | inline ClassId classId() const { return static_cast<ClassId>(id); } |
117 | |
118 | virtual qreal devicePixelRatio() const = 0; |
119 | virtual void setDevicePixelRatio(qreal scaleFactor) = 0; |
120 | |
121 | virtual QImage* buffer(); |
122 | |
123 | inline int width() const { return w; } |
124 | inline int height() const { return h; } |
125 | inline int colorCount() const { return metric(metric: QPaintDevice::PdmNumColors); } |
126 | inline int depth() const { return d; } |
127 | inline bool isNull() const { return is_null; } |
128 | inline qint64 cacheKey() const { |
129 | int classKey = id; |
130 | if (classKey >= 1024) |
131 | classKey = -(classKey >> 10); |
132 | return ((((qint64) classKey) << 56) |
133 | | (((qint64) ser_no) << 32) |
134 | | ((qint64) detach_no)); |
135 | } |
136 | |
137 | static QPlatformPixmap *create(int w, int h, PixelType type); |
138 | |
139 | protected: |
140 | |
141 | void setSerialNumber(int serNo); |
142 | void setDetachNumber(int detNo); |
143 | int w; |
144 | int h; |
145 | int d; |
146 | bool is_null; |
147 | |
148 | private: |
149 | friend class QPixmap; |
150 | friend class QX11PlatformPixmap; |
151 | friend class QImagePixmapCleanupHooks; // Needs to set is_cached |
152 | friend class QOpenGLTextureCache; //Needs to check the reference count |
153 | friend class QExplicitlySharedDataPointer<QPlatformPixmap>; |
154 | |
155 | QAtomicInt ref; |
156 | int detach_no; |
157 | |
158 | PixelType type; |
159 | int id; |
160 | int ser_no; |
161 | uint is_cached; |
162 | }; |
163 | |
164 | # define QT_XFORM_TYPE_MSBFIRST 0 |
165 | # define QT_XFORM_TYPE_LSBFIRST 1 |
166 | Q_GUI_EXPORT bool qt_xForm_helper(const QTransform&, int, int, int, uchar*, int, int, int, const uchar*, int, int, int); |
167 | |
168 | QT_END_NAMESPACE |
169 | |
170 | #endif // QPLATFORMPIXMAP_H |
171 | |