Qt 4.8
qpixmap_raster_p.h
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41 
42 #ifndef QPIXMAPDATA_RASTER_P_H
43 #define QPIXMAPDATA_RASTER_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 
59 #ifdef Q_WS_WIN
60 # include "qt_windows.h"
61 #endif
62 
64 
66 {
67 public:
70 
72 
73  void resize(int width, int height);
74  void fromFile(const QString &filename, Qt::ImageConversionFlags flags);
75  bool fromData(const uchar *buffer, uint len, const char *format, Qt::ImageConversionFlags flags);
76  void fromImage(const QImage &image, Qt::ImageConversionFlags flags);
77  void fromImageReader(QImageReader *imageReader, Qt::ImageConversionFlags flags);
78 
79  void copy(const QPixmapData *data, const QRect &rect);
80  bool scroll(int dx, int dy, const QRect &rect);
81  void fill(const QColor &color);
82  void setMask(const QBitmap &mask);
83  bool hasAlphaChannel() const;
84  void setAlphaChannel(const QPixmap &alphaChannel);
85  QImage toImage() const;
86  QImage toImage(const QRect &rect) const;
87  QPaintEngine* paintEngine() const;
88  QImage* buffer();
89 
90 protected:
91  int metric(QPaintDevice::PaintDeviceMetric metric) const;
92  void createPixmapForImage(QImage &sourceImage, Qt::ImageConversionFlags flags, bool inPlace);
93  void setImage(const QImage &image);
95 
96 private:
97  friend class QPixmap;
98  friend class QBitmap;
99  friend class QPixmapCacheEntry;
100  friend class QRasterPaintEngine;
101 };
102 
104 
105 #endif // QPIXMAPDATA_RASTER_P_H
106 
107 
virtual QPixmapData * createCompatiblePixmapData() const
Definition: qpixmapdata.cpp:96
The QColor class provides colors based on RGB, HSV or CMYK values.
Definition: qcolor.h:67
virtual bool fromFile(const QString &filename, const char *format, Qt::ImageConversionFlags flags)
int type
Definition: qmetatype.cpp:239
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
virtual void fill(const QColor &color)=0
#define Q_GUI_EXPORT
Definition: qglobal.h:1450
virtual void resize(int width, int height)=0
virtual QPaintEngine * paintEngine() const =0
The QString class provides a Unicode character string.
Definition: qstring.h:83
virtual bool fromData(const uchar *buffer, uint len, const char *format, Qt::ImageConversionFlags flags)
unsigned char uchar
Definition: qglobal.h:994
The QBitmap class provides monochrome (1-bit depth) pixmaps.
Definition: qbitmap.h:55
virtual QImage toImage() const =0
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
virtual void fromImage(const QImage &image, Qt::ImageConversionFlags flags)=0
The QImage class provides a hardware-independent image representation that allows direct access to th...
Definition: qimage.h:87
static const char * data(const QByteArray &arr)
unsigned int uint
Definition: qglobal.h:996
virtual int metric(QPaintDevice::PaintDeviceMetric metric) const =0
The QPaintEngine class provides an abstract definition of how QPainter draws to a given device on a g...
Definition: qpaintengine.h:90
The QImageReader class provides a format independent interface for reading images from files or other...
Definition: qimagereader.h:62
virtual bool hasAlphaChannel() const =0
virtual void copy(const QPixmapData *data, const QRect &rect)
The QRect class defines a rectangle in the plane using integer precision.
Definition: qrect.h:58
virtual void setMask(const QBitmap &mask)
The QPixmap class is an off-screen image representation that can be used as a paint device...
Definition: qpixmap.h:71
virtual QImage * buffer()
virtual void setAlphaChannel(const QPixmap &alphaChannel)
The QRasterPaintEngine class enables hardware acceleration of painting operations in Qt for Embedded ...
virtual bool scroll(int dx, int dy, const QRect &rect)
virtual void fromImageReader(QImageReader *imageReader, Qt::ImageConversionFlags flags)