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| ** Copyright (C) 2015 The Qt Company Ltd. |
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| |
| #ifndef QGRAPHICSEFFECT_P_H |
| #define QGRAPHICSEFFECT_P_H |
| |
| // |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt API. It exists for the convenience |
| // of qapplication_*.cpp, qwidget*.cpp and qfiledialog.cpp. This header |
| // file may change from version to version without notice, or even be removed. |
| // |
| // We mean it. |
| // |
| |
| #include "qgraphicseffect.h" |
| |
| #include <QPixmapCache> |
| |
| #include <private/qobject_p.h> |
| #include <private/qpixmapfilter_p.h> |
| |
| #ifndef QT_NO_GRAPHICSEFFECT |
| QT_BEGIN_NAMESPACE |
| |
| class QGraphicsEffectSourcePrivate; |
| class Q_WIDGETS_EXPORT QGraphicsEffectSource : public QObject |
| { |
| Q_OBJECT |
| public: |
| ~QGraphicsEffectSource(); |
| const QGraphicsItem *graphicsItem() const; |
| const QWidget *widget() const; |
| const QStyleOption *styleOption() const; |
| |
| bool isPixmap() const; |
| void draw(QPainter *painter); |
| void update(); |
| |
| QRectF boundingRect(Qt::CoordinateSystem coordinateSystem = Qt::LogicalCoordinates) const; |
| QRect deviceRect() const; |
| QPixmap pixmap(Qt::CoordinateSystem system = Qt::LogicalCoordinates, |
| QPoint *offset = 0, |
| QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToEffectiveBoundingRect) const; |
| |
| protected: |
| QGraphicsEffectSource(QGraphicsEffectSourcePrivate &dd, QObject *parent = 0); |
| |
| private: |
| Q_DECLARE_PRIVATE(QGraphicsEffectSource) |
| Q_DISABLE_COPY(QGraphicsEffectSource) |
| friend class QGraphicsEffect; |
| friend class QGraphicsEffectPrivate; |
| friend class QGraphicsScenePrivate; |
| friend class QGraphicsItem; |
| friend class QGraphicsItemPrivate; |
| friend class QWidget; |
| friend class QWidgetPrivate; |
| }; |
| |
| class QGraphicsEffectSourcePrivate : public QObjectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsEffectSource) |
| public: |
| QGraphicsEffectSourcePrivate() |
| : QObjectPrivate() |
| , m_cachedSystem(Qt::DeviceCoordinates) |
| , m_cachedMode(QGraphicsEffect::PadToTransparentBorder) |
| {} |
| |
| enum InvalidateReason |
| { |
| TransformChanged, |
| EffectRectChanged, |
| SourceChanged |
| }; |
| |
| virtual ~QGraphicsEffectSourcePrivate(); |
| virtual void detach() = 0; |
| virtual QRectF boundingRect(Qt::CoordinateSystem system) const = 0; |
| virtual QRect deviceRect() const = 0; |
| virtual const QGraphicsItem *graphicsItem() const = 0; |
| virtual const QWidget *widget() const = 0; |
| virtual const QStyleOption *styleOption() const = 0; |
| virtual void draw(QPainter *p) = 0; |
| virtual void update() = 0; |
| virtual bool isPixmap() const = 0; |
| virtual QPixmap pixmap(Qt::CoordinateSystem system, QPoint *offset = 0, |
| QGraphicsEffect::PixmapPadMode mode = QGraphicsEffect::PadToTransparentBorder) const = 0; |
| virtual void effectBoundingRectChanged() = 0; |
| |
| void setCachedOffset(const QPoint &offset); |
| void invalidateCache(InvalidateReason reason = SourceChanged) const; |
| Qt::CoordinateSystem currentCachedSystem() const { return m_cachedSystem; } |
| QGraphicsEffect::PixmapPadMode currentCachedMode() const { return m_cachedMode; } |
| |
| friend class QGraphicsScenePrivate; |
| friend class QGraphicsItem; |
| friend class QGraphicsItemPrivate; |
| |
| private: |
| mutable Qt::CoordinateSystem m_cachedSystem; |
| mutable QGraphicsEffect::PixmapPadMode m_cachedMode; |
| mutable QPoint m_cachedOffset; |
| mutable QPixmapCache::Key m_cacheKey; |
| }; |
| |
| class Q_WIDGETS_EXPORT QGraphicsEffectPrivate : public QObjectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsEffect) |
| public: |
| QGraphicsEffectPrivate() : source(0), isEnabled(1) {} |
| |
| inline void setGraphicsEffectSource(QGraphicsEffectSource *newSource) |
| { |
| QGraphicsEffect::ChangeFlags flags; |
| if (source) { |
| flags |= QGraphicsEffect::SourceDetached; |
| source->d_func()->invalidateCache(); |
| source->d_func()->detach(); |
| delete source; |
| } |
| source = newSource; |
| if (newSource) |
| flags |= QGraphicsEffect::SourceAttached; |
| q_func()->sourceChanged(flags); |
| } |
| |
| QGraphicsEffectSource *source; |
| QRectF boundingRect; |
| quint32 isEnabled : 1; |
| quint32 padding : 31; // feel free to use |
| }; |
| |
| |
| class QGraphicsColorizeEffectPrivate : public QGraphicsEffectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsColorizeEffect) |
| public: |
| QGraphicsColorizeEffectPrivate() |
| : opaque(true) |
| { |
| filter = new QPixmapColorizeFilter; |
| } |
| ~QGraphicsColorizeEffectPrivate() { delete filter; } |
| |
| QPixmapColorizeFilter *filter; |
| quint32 opaque : 1; |
| quint32 padding : 31; |
| }; |
| |
| class QGraphicsBlurEffectPrivate : public QGraphicsEffectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsBlurEffect) |
| public: |
| QGraphicsBlurEffectPrivate() : filter(new QPixmapBlurFilter) {} |
| ~QGraphicsBlurEffectPrivate() { delete filter; } |
| |
| QPixmapBlurFilter *filter; |
| }; |
| |
| class QGraphicsDropShadowEffectPrivate : public QGraphicsEffectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsDropShadowEffect) |
| public: |
| QGraphicsDropShadowEffectPrivate() : filter(new QPixmapDropShadowFilter) {} |
| ~QGraphicsDropShadowEffectPrivate() { delete filter; } |
| |
| QPixmapDropShadowFilter *filter; |
| }; |
| |
| class QGraphicsOpacityEffectPrivate : public QGraphicsEffectPrivate |
| { |
| Q_DECLARE_PUBLIC(QGraphicsOpacityEffect) |
| public: |
| QGraphicsOpacityEffectPrivate() |
| : opacity(qreal(0.7)), isFullyTransparent(0), isFullyOpaque(0), hasOpacityMask(0) {} |
| ~QGraphicsOpacityEffectPrivate() {} |
| |
| qreal opacity; |
| QBrush opacityMask; |
| uint isFullyTransparent : 1; |
| uint isFullyOpaque : 1; |
| uint hasOpacityMask : 1; |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif //QT_NO_GRAPHICSEFFECT |
| #endif // QGRAPHICSEFFECT_P_H |
| |