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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 COMPOSITION_H
+#define COMPOSITION_H
+
+#include "arthurwidgets.h"
+
+#include <QPainter>
+#include <QEvent>
+
+QT_FORWARD_DECLARE_CLASS(QPushButton)
+QT_FORWARD_DECLARE_CLASS(QRadioButton)
+
+#ifdef QT_OPENGL_SUPPORT
+#include <QtOpenGL>
+#endif
+
+class CompositionWidget : public QWidget
+{
+ Q_OBJECT
+
+public:
+ CompositionWidget(QWidget *parent);
+
+public slots:
+void nextMode();
+
+private:
+ bool m_cycle_enabled;
+
+ QRadioButton *rbClear;
+ QRadioButton *rbSource;
+ QRadioButton *rbDest;
+ QRadioButton *rbSourceOver;
+ QRadioButton *rbDestOver;
+ QRadioButton *rbSourceIn;
+ QRadioButton *rbDestIn;
+ QRadioButton *rbSourceOut;
+ QRadioButton *rbDestOut;
+ QRadioButton *rbSourceAtop;
+ QRadioButton *rbDestAtop;
+ QRadioButton *rbXor;
+
+ QRadioButton *rbPlus;
+ QRadioButton *rbMultiply;
+ QRadioButton *rbScreen;
+ QRadioButton *rbOverlay;
+ QRadioButton *rbDarken;
+ QRadioButton *rbLighten;
+ QRadioButton *rbColorDodge;
+ QRadioButton *rbColorBurn;
+ QRadioButton *rbHardLight;
+ QRadioButton *rbSoftLight;
+ QRadioButton *rbDifference;
+ QRadioButton *rbExclusion;
+};
+
+class CompositionRenderer : public ArthurFrame
+{
+ Q_OBJECT
+
+ enum ObjectType { NoObject, Circle, Rectangle, Image };
+
+ Q_PROPERTY(int circleColor READ circleColor WRITE setCircleColor)
+ Q_PROPERTY(int circleAlpha READ circleAlpha WRITE setCircleAlpha)
+ Q_PROPERTY(bool animation READ animationEnabled WRITE setAnimationEnabled)
+
+public:
+ CompositionRenderer(QWidget *parent);
+
+ void paint(QPainter *);
+
+ void mousePressEvent(QMouseEvent *);
+ void mouseMoveEvent(QMouseEvent *);
+ void mouseReleaseEvent(QMouseEvent *);
+
+ void setCirclePos(const QPointF &pos);
+
+ QSize sizeHint() const { return QSize(500, 400); }
+
+ bool animationEnabled() const { return m_animation_enabled; }
+ int circleColor() const { return m_circle_hue; }
+ int circleAlpha() const { return m_circle_alpha; }
+
+public slots:
+ void setClearMode() { m_composition_mode = QPainter::CompositionMode_Clear; update(); }
+ void setSourceMode() { m_composition_mode = QPainter::CompositionMode_Source; update(); }
+ void setDestMode() { m_composition_mode = QPainter::CompositionMode_Destination; update(); }
+ void setSourceOverMode() { m_composition_mode = QPainter::CompositionMode_SourceOver; update(); }
+ void setDestOverMode() { m_composition_mode = QPainter::CompositionMode_DestinationOver; update(); }
+ void setSourceInMode() { m_composition_mode = QPainter::CompositionMode_SourceIn; update(); }
+ void setDestInMode() { m_composition_mode = QPainter::CompositionMode_DestinationIn; update(); }
+ void setSourceOutMode() { m_composition_mode = QPainter::CompositionMode_SourceOut; update(); }
+ void setDestOutMode() { m_composition_mode = QPainter::CompositionMode_DestinationOut; update(); }
+ void setSourceAtopMode() { m_composition_mode = QPainter::CompositionMode_SourceAtop; update(); }
+ void setDestAtopMode() { m_composition_mode = QPainter::CompositionMode_DestinationAtop; update(); }
+ void setXorMode() { m_composition_mode = QPainter::CompositionMode_Xor; update(); }
+
+ void setPlusMode() { m_composition_mode = QPainter::CompositionMode_Plus; update(); }
+ void setMultiplyMode() { m_composition_mode = QPainter::CompositionMode_Multiply; update(); }
+ void setScreenMode() { m_composition_mode = QPainter::CompositionMode_Screen; update(); }
+ void setOverlayMode() { m_composition_mode = QPainter::CompositionMode_Overlay; update(); }
+ void setDarkenMode() { m_composition_mode = QPainter::CompositionMode_Darken; update(); }
+ void setLightenMode() { m_composition_mode = QPainter::CompositionMode_Lighten; update(); }
+ void setColorDodgeMode() { m_composition_mode = QPainter::CompositionMode_ColorDodge; update(); }
+ void setColorBurnMode() { m_composition_mode = QPainter::CompositionMode_ColorBurn; update(); }
+ void setHardLightMode() { m_composition_mode = QPainter::CompositionMode_HardLight; update(); }
+ void setSoftLightMode() { m_composition_mode = QPainter::CompositionMode_SoftLight; update(); }
+ void setDifferenceMode() { m_composition_mode = QPainter::CompositionMode_Difference; update(); }
+ void setExclusionMode() { m_composition_mode = QPainter::CompositionMode_Exclusion; update(); }
+
+ void setCircleAlpha(int alpha) { m_circle_alpha = alpha; update(); }
+ void setCircleColor(int hue) { m_circle_hue = hue; update(); }
+ void setAnimationEnabled(bool enabled) { m_animation_enabled = enabled; update(); }
+
+private:
+ void updateCirclePos();
+ void drawBase(QPainter &p);
+ void drawSource(QPainter &p);
+
+ QPainter::CompositionMode m_composition_mode;
+
+#ifdef Q_WS_QWS
+ QPixmap m_image;
+ QPixmap m_buffer;
+ QPixmap m_base_buffer;
+#else
+ QImage m_image;
+ QImage m_buffer;
+ QImage m_base_buffer;
+#endif
+
+ int m_circle_alpha;
+ int m_circle_hue;
+
+ QPointF m_circle_pos;
+ QPointF m_offset;
+
+ ObjectType m_current_object;
+ bool m_animation_enabled;
+
+#ifdef QT_OPENGL_SUPPORT
+ QGLPixelBuffer *m_pbuffer;
+ GLuint m_base_tex;
+ GLuint m_compositing_tex;
+ int m_pbuffer_size; // width==height==size of pbuffer
+ QSize m_previous_size;
+#endif
+};
+
+#endif // COMPOSITION_H