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Diffstat (limited to 'src/gui/effects/qgraphicseffect.h')
| -rw-r--r-- | src/gui/effects/qgraphicseffect.h | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/src/gui/effects/qgraphicseffect.h b/src/gui/effects/qgraphicseffect.h new file mode 100644 index 0000000..d171b1b --- /dev/null +++ b/src/gui/effects/qgraphicseffect.h @@ -0,0 +1,291 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain +** additional rights. These rights are described in the Nokia Qt LGPL +** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QGRAPHICSEFFECT_H +#define QGRAPHICSEFFECT_H + +#include <QtCore/qobject.h> +#include <QtCore/qpoint.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +QT_MODULE(Gui) + +#if !defined(QT_NO_GRAPHICSVIEW) || (QT_EDITION & QT_MODULE_GRAPHICSVIEW) != QT_MODULE_GRAPHICSVIEW + +class QGraphicsItem; +class QStyleOption; +class QColor; +class QPainter; +class QRectF; +class QRect; +class QPixmap; + +class QGraphicsEffectSourcePrivate; +class Q_GUI_EXPORT QGraphicsEffectSource : public QObject +{ + Q_OBJECT +public: + ~QGraphicsEffectSource(); + const QGraphicsItem *graphicsItem() 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) 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; +}; + +class QGraphicsEffectPrivate; +class Q_GUI_EXPORT QGraphicsEffect : public QObject +{ + Q_OBJECT + Q_FLAGS(ChangeFlags) + Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled) +public: + enum ChangeFlag { + SourceAttached = 0x1, + SourceDetached = 0x2, + SourceBoundingRectChanged = 0x4, + SourceInvalidated = 0x8 + }; + Q_DECLARE_FLAGS(ChangeFlags, ChangeFlag); + + QGraphicsEffect(); + virtual ~QGraphicsEffect(); + + // ### make protected? + virtual QRectF boundingRectFor(const QRectF &rect) const; + QRectF boundingRect() const; + + QGraphicsEffectSource *source() const; + + bool isEnabled() const; + +public Q_SLOTS: + void setEnabled(bool enable); + // ### add update() slot + +protected: + QGraphicsEffect(QGraphicsEffectPrivate &d); + virtual void draw(QPainter *painter, QGraphicsEffectSource *source) = 0; + virtual void sourceChanged(ChangeFlags flags); + void updateBoundingRect(); + +private: + Q_DECLARE_PRIVATE(QGraphicsEffect) + Q_DISABLE_COPY(QGraphicsEffect) + friend class QGraphicsItem; + friend class QGraphicsItemPrivate; + friend class QGraphicsScenePrivate; +}; + +class QGraphicsGrayscaleEffectPrivate; +class Q_GUI_EXPORT QGraphicsGrayscaleEffect: public QGraphicsEffect +{ + Q_OBJECT +public: + QGraphicsGrayscaleEffect(); + ~QGraphicsGrayscaleEffect(); + +protected: + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsGrayscaleEffect) + Q_DISABLE_COPY(QGraphicsGrayscaleEffect) +}; + +class QGraphicsColorizeEffectPrivate; +class Q_GUI_EXPORT QGraphicsColorizeEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsColorizeEffect(); + ~QGraphicsColorizeEffect(); + + QColor color() const; + void setColor(const QColor &c); + +protected: + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsColorizeEffect) + Q_DISABLE_COPY(QGraphicsColorizeEffect) +}; + +class QGraphicsPixelizeEffectPrivate; +class Q_GUI_EXPORT QGraphicsPixelizeEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsPixelizeEffect(); + ~QGraphicsPixelizeEffect(); + + int pixelSize() const; + void setPixelSize(int pixelSize); + +protected: + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsPixelizeEffect) + Q_DISABLE_COPY(QGraphicsPixelizeEffect) +}; + +class QGraphicsBlurEffectPrivate; +class Q_GUI_EXPORT QGraphicsBlurEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsBlurEffect(); + ~QGraphicsBlurEffect(); + + int blurRadius() const; + void setBlurRadius(int blurRadius); + +protected: + QRectF boundingRectFor(const QRectF &rect) const; + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsBlurEffect) + Q_DISABLE_COPY(QGraphicsBlurEffect) +}; + +class QGraphicsBloomEffectPrivate; +class Q_GUI_EXPORT QGraphicsBloomEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsBloomEffect(); + ~QGraphicsBloomEffect(); + + int blurRadius() const; + void setBlurRadius(int blurRadius); + + qreal opacity() const; + void setOpacity(qreal opacity); + +protected: + QRectF boundingRectFor(const QRectF &rect) const; + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsBloomEffect) + Q_DISABLE_COPY(QGraphicsBloomEffect) +}; + +class QGraphicsFrameEffectPrivate; +class Q_GUI_EXPORT QGraphicsFrameEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsFrameEffect(); + ~QGraphicsFrameEffect(); + + QColor frameColor() const; + void setFrameColor(const QColor &c); + + qreal frameWidth() const; + void setFrameWidth(qreal frameWidth); + + qreal frameOpacity() const; + void setFrameOpacity(qreal opacity); + +protected: + QRectF boundingRectFor(const QRectF &rect) const; + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsFrameEffect) + Q_DISABLE_COPY(QGraphicsFrameEffect) +}; + +class QGraphicsShadowEffectPrivate; +class Q_GUI_EXPORT QGraphicsShadowEffect: public QGraphicsEffect { + Q_OBJECT +public: + QGraphicsShadowEffect(); + ~QGraphicsShadowEffect(); + + QPointF shadowOffset() const; + void setShadowOffset(const QPointF &ofs); + inline void setShadowOffset(qreal dx, qreal dy) + { setShadowOffset(QPointF(dx, dy)); } + inline void setShadowOffset(qreal d) + { setShadowOffset(QPointF(d, d)); } + + int blurRadius() const; + void setBlurRadius(int blurRadius); + + qreal opacity() const; + void setOpacity(qreal opacity); + +protected: + QRectF boundingRectFor(const QRectF &rect) const; + void draw(QPainter *painter, QGraphicsEffectSource *source); + +private: + Q_DECLARE_PRIVATE(QGraphicsShadowEffect) + Q_DISABLE_COPY(QGraphicsShadowEffect) +}; + +#endif // QT_NO_GRAPHICSVIEW + +QT_END_NAMESPACE + +QT_END_HEADER + + +#endif // QGRAPHICSEFFECT_H |