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41
42 #ifndef QGLPIXMAPFILTER_P_H
43 #define QGLPIXMAPFILTER_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 <private/qpixmapfilter_p.h>
57
58 #include <QtOpenGL/qgl.h>
59
60 QT_BEGIN_HEADER
61
62 QT_BEGIN_NAMESPACE
63
64 class QGLPixelBuffer;
65
QT_MODULE(OpenGL)66 QT_MODULE(OpenGL)
67
68 class QGLPixmapFilterBase
69 {
70 public:
71 virtual ~QGLPixmapFilterBase() {}
72 protected:
73 void bindTexture(const QPixmap &src) const;
74 void drawImpl(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect = QRectF()) const;
75
76 virtual bool processGL(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect) const = 0;
77 };
78
79 template <typename Filter>
80 class QGLPixmapFilter : public Filter, public QGLPixmapFilterBase
81 {
82 public:
83 void draw(QPainter *painter, const QPointF &pos, const QPixmap &src, const QRectF &srcRect = QRectF()) const {
84 const QRectF source = srcRect.isNull() ? QRectF(src.rect()) : srcRect;
85 if (painter)
86 drawImpl(painter, pos, src, source);
87 }
88 };
89
90 QT_END_NAMESPACE
91
92 QT_END_HEADER
93
94 #endif // QGLPIXMAPFILTER_P_H
95