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41 | |
42 | #ifndef QPIXMAPFILTER_H |
43 | #define QPIXMAPFILTER_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 <QtCore/qnamespace.h> |
57 | #include <QtGui/qpixmap.h> |
58 | #include <QtGui/qgraphicseffect.h> |
59 | |
60 | #ifndef QT_NO_GRAPHICSEFFECT |
61 | QT_BEGIN_HEADER |
62 | |
63 | QT_BEGIN_NAMESPACE |
64 | |
65 | QT_MODULE(Gui) |
66 | |
67 | class QPainter; |
68 | class QPixmapData; |
69 | |
70 | class QPixmapFilterPrivate; |
71 | |
72 | class Q_GUI_EXPORT QPixmapFilter : public QObject |
73 | { |
74 | Q_OBJECT |
75 | Q_DECLARE_PRIVATE(QPixmapFilter) |
76 | public: |
77 | virtual ~QPixmapFilter() = 0; |
78 | |
79 | enum FilterType { |
80 | ConvolutionFilter, |
81 | ColorizeFilter, |
82 | DropShadowFilter, |
83 | BlurFilter, |
84 | |
85 | UserFilter = 1024 |
86 | }; |
87 | |
88 | FilterType type() const; |
89 | |
90 | virtual QRectF boundingRectFor(const QRectF &rect) const; |
91 | |
92 | virtual void draw(QPainter *painter, const QPointF &p, const QPixmap &src, const QRectF &srcRect = QRectF()) const = 0; |
93 | |
94 | protected: |
95 | QPixmapFilter(QPixmapFilterPrivate &d, FilterType type, QObject *parent); |
96 | QPixmapFilter(FilterType type, QObject *parent); |
97 | }; |
98 | |
99 | class QPixmapConvolutionFilterPrivate; |
100 | |
101 | class Q_GUI_EXPORT QPixmapConvolutionFilter : public QPixmapFilter |
102 | { |
103 | Q_OBJECT |
104 | Q_DECLARE_PRIVATE(QPixmapConvolutionFilter) |
105 | |
106 | public: |
107 | QPixmapConvolutionFilter(QObject *parent = 0); |
108 | ~QPixmapConvolutionFilter(); |
109 | |
110 | void setConvolutionKernel(const qreal *matrix, int rows, int columns); |
111 | |
112 | QRectF boundingRectFor(const QRectF &rect) const; |
113 | void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const; |
114 | |
115 | private: |
116 | friend class QGLPixmapConvolutionFilter; |
117 | friend class QVGPixmapConvolutionFilter; |
118 | const qreal *convolutionKernel() const; |
119 | int rows() const; |
120 | int columns() const; |
121 | }; |
122 | |
123 | class QPixmapBlurFilterPrivate; |
124 | |
125 | class Q_GUI_EXPORT QPixmapBlurFilter : public QPixmapFilter |
126 | { |
127 | Q_OBJECT |
128 | Q_DECLARE_PRIVATE(QPixmapBlurFilter) |
129 | |
130 | public: |
131 | QPixmapBlurFilter(QObject *parent = 0); |
132 | ~QPixmapBlurFilter(); |
133 | |
134 | void setRadius(qreal radius); |
135 | void setBlurHints(QGraphicsBlurEffect::BlurHints hints); |
136 | |
137 | qreal radius() const; |
138 | QGraphicsBlurEffect::BlurHints blurHints() const; |
139 | |
140 | QRectF boundingRectFor(const QRectF &rect) const; |
141 | void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const; |
142 | |
143 | private: |
144 | friend class QGLPixmapBlurFilter; |
145 | }; |
146 | |
147 | class QPixmapColorizeFilterPrivate; |
148 | |
149 | class Q_GUI_EXPORT QPixmapColorizeFilter : public QPixmapFilter |
150 | { |
151 | Q_OBJECT |
152 | Q_DECLARE_PRIVATE(QPixmapColorizeFilter) |
153 | |
154 | public: |
155 | QPixmapColorizeFilter(QObject *parent = 0); |
156 | |
157 | void setColor(const QColor& color); |
158 | QColor color() const; |
159 | |
160 | void setStrength(qreal strength); |
161 | qreal strength() const; |
162 | |
163 | void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const; |
164 | }; |
165 | |
166 | class QPixmapDropShadowFilterPrivate; |
167 | |
168 | class Q_GUI_EXPORT QPixmapDropShadowFilter : public QPixmapFilter |
169 | { |
170 | Q_OBJECT |
171 | Q_DECLARE_PRIVATE(QPixmapDropShadowFilter) |
172 | |
173 | public: |
174 | QPixmapDropShadowFilter(QObject *parent = 0); |
175 | ~QPixmapDropShadowFilter(); |
176 | |
177 | QRectF boundingRectFor(const QRectF &rect) const; |
178 | void draw(QPainter *p, const QPointF &pos, const QPixmap &px, const QRectF &src = QRectF()) const; |
179 | |
180 | qreal blurRadius() const; |
181 | void setBlurRadius(qreal radius); |
182 | |
183 | QColor color() const; |
184 | void setColor(const QColor &color); |
185 | |
186 | QPointF offset() const; |
187 | void setOffset(const QPointF &offset); |
188 | inline void setOffset(qreal dx, qreal dy) { setOffset(QPointF(dx, dy)); } |
189 | }; |
190 | |
191 | QT_END_NAMESPACE |
192 | |
193 | QT_END_HEADER |
194 | |
195 | #endif //QT_NO_GRAPHICSEFFECT |
196 | #endif // QPIXMAPFILTER_H |
197 | |