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| ** Copyright (C) 2015 The Qt Company Ltd. |
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| |
| #ifndef QPIXMAPFILTER_H |
| #define QPIXMAPFILTER_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include <QtCore/qnamespace.h> |
| #include <QtGui/qpixmap.h> |
| #include <QtWidgets/qgraphicseffect.h> |
| |
| #ifndef QT_NO_GRAPHICSEFFECT |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QPainter; |
| class QPlatformPixmap; |
| |
| class QPixmapFilterPrivate; |
| |
| class Q_WIDGETS_EXPORT QPixmapFilter : public QObject |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QPixmapFilter) |
| public: |
| virtual ~QPixmapFilter() = 0; |
| |
| enum FilterType { |
| ConvolutionFilter, |
| ColorizeFilter, |
| DropShadowFilter, |
| BlurFilter, |
| |
| UserFilter = 1024 |
| }; |
| |
| FilterType type() const; |
| |
| virtual QRectF boundingRectFor(const QRectF &rect) const; |
| |
| virtual void draw(QPainter *painter, const QPointF &p, const QPixmap &src, const QRectF &srcRect = QRectF()) const = 0; |
| |
| protected: |
| QPixmapFilter(QPixmapFilterPrivate &d, FilterType type, QObject *parent); |
| QPixmapFilter(FilterType type, QObject *parent); |
| }; |
| |
| class QPixmapConvolutionFilterPrivate; |
| |
| class Q_WIDGETS_EXPORT QPixmapConvolutionFilter : public QPixmapFilter |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QPixmapConvolutionFilter) |
| |
| public: |
| QPixmapConvolutionFilter(QObject *parent = 0); |
| ~QPixmapConvolutionFilter(); |
| |
| void setConvolutionKernel(const qreal *matrix, int rows, int columns); |
| |
| QRectF boundingRectFor(const QRectF &rect) const Q_DECL_OVERRIDE; |
| void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const Q_DECL_OVERRIDE; |
| |
| private: |
| friend class QGLPixmapConvolutionFilter; |
| friend class QVGPixmapConvolutionFilter; |
| const qreal *convolutionKernel() const; |
| int rows() const; |
| int columns() const; |
| }; |
| |
| class QPixmapBlurFilterPrivate; |
| |
| class Q_WIDGETS_EXPORT QPixmapBlurFilter : public QPixmapFilter |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QPixmapBlurFilter) |
| |
| public: |
| QPixmapBlurFilter(QObject *parent = 0); |
| ~QPixmapBlurFilter(); |
| |
| void setRadius(qreal radius); |
| void setBlurHints(QGraphicsBlurEffect::BlurHints hints); |
| |
| qreal radius() const; |
| QGraphicsBlurEffect::BlurHints blurHints() const; |
| |
| QRectF boundingRectFor(const QRectF &rect) const Q_DECL_OVERRIDE; |
| void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const Q_DECL_OVERRIDE; |
| |
| private: |
| friend class QGLPixmapBlurFilter; |
| }; |
| |
| class QPixmapColorizeFilterPrivate; |
| |
| class Q_WIDGETS_EXPORT QPixmapColorizeFilter : public QPixmapFilter |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QPixmapColorizeFilter) |
| |
| public: |
| QPixmapColorizeFilter(QObject *parent = 0); |
| |
| void setColor(const QColor& color); |
| QColor color() const; |
| |
| void setStrength(qreal strength); |
| qreal strength() const; |
| |
| void draw(QPainter *painter, const QPointF &dest, const QPixmap &src, const QRectF &srcRect = QRectF()) const Q_DECL_OVERRIDE; |
| }; |
| |
| class QPixmapDropShadowFilterPrivate; |
| |
| class Q_WIDGETS_EXPORT QPixmapDropShadowFilter : public QPixmapFilter |
| { |
| Q_OBJECT |
| Q_DECLARE_PRIVATE(QPixmapDropShadowFilter) |
| |
| public: |
| QPixmapDropShadowFilter(QObject *parent = 0); |
| ~QPixmapDropShadowFilter(); |
| |
| QRectF boundingRectFor(const QRectF &rect) const Q_DECL_OVERRIDE; |
| void draw(QPainter *p, const QPointF &pos, const QPixmap &px, const QRectF &src = QRectF()) const Q_DECL_OVERRIDE; |
| |
| qreal blurRadius() const; |
| void setBlurRadius(qreal radius); |
| |
| QColor color() const; |
| void setColor(const QColor &color); |
| |
| QPointF offset() const; |
| void setOffset(const QPointF &offset); |
| inline void setOffset(qreal dx, qreal dy) { setOffset(QPointF(dx, dy)); } |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif //QT_NO_GRAPHICSEFFECT |
| #endif // QPIXMAPFILTER_H |