190 lines
7.0 KiB
C++
190 lines
7.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef COMPOSITION_H
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#define COMPOSITION_H
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#include "arthurwidgets.h"
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#include <QPainter>
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#include <QEvent>
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QT_BEGIN_NAMESPACE
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class QPushButton;
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class QRadioButton;
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QT_END_NAMESPACE
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#ifdef QT_OPENGL_SUPPORT
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#include <QtOpenGL>
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#endif
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class CompositionWidget : public QWidget
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{
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Q_OBJECT
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public:
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CompositionWidget(QWidget *parent);
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public slots:
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void nextMode();
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private:
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bool m_cycle_enabled;
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QRadioButton *rbClear;
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QRadioButton *rbSource;
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QRadioButton *rbDest;
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QRadioButton *rbSourceOver;
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QRadioButton *rbDestOver;
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QRadioButton *rbSourceIn;
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QRadioButton *rbDestIn;
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QRadioButton *rbSourceOut;
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QRadioButton *rbDestOut;
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QRadioButton *rbSourceAtop;
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QRadioButton *rbDestAtop;
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QRadioButton *rbXor;
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QRadioButton *rbPlus;
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QRadioButton *rbMultiply;
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QRadioButton *rbScreen;
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QRadioButton *rbOverlay;
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QRadioButton *rbDarken;
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QRadioButton *rbLighten;
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QRadioButton *rbColorDodge;
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QRadioButton *rbColorBurn;
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QRadioButton *rbHardLight;
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QRadioButton *rbSoftLight;
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QRadioButton *rbDifference;
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QRadioButton *rbExclusion;
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};
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class CompositionRenderer : public ArthurFrame
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{
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Q_OBJECT
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enum ObjectType { NoObject, Circle, Rectangle, Image };
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Q_PROPERTY(int circleColor READ circleColor WRITE setCircleColor)
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Q_PROPERTY(int circleAlpha READ circleAlpha WRITE setCircleAlpha)
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Q_PROPERTY(bool animation READ animationEnabled WRITE setAnimationEnabled)
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public:
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CompositionRenderer(QWidget *parent);
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void paint(QPainter *);
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void setCirclePos(const QPointF &pos);
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QSize sizeHint() const { return QSize(500, 400); }
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bool animationEnabled() const { return m_animation_enabled; }
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int circleColor() const { return m_circle_hue; }
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int circleAlpha() const { return m_circle_alpha; }
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protected:
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void mousePressEvent(QMouseEvent *);
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void mouseMoveEvent(QMouseEvent *);
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void mouseReleaseEvent(QMouseEvent *);
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void timerEvent(QTimerEvent *);
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public slots:
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void setClearMode() { m_composition_mode = QPainter::CompositionMode_Clear; update(); }
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void setSourceMode() { m_composition_mode = QPainter::CompositionMode_Source; update(); }
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void setDestMode() { m_composition_mode = QPainter::CompositionMode_Destination; update(); }
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void setSourceOverMode() { m_composition_mode = QPainter::CompositionMode_SourceOver; update(); }
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void setDestOverMode() { m_composition_mode = QPainter::CompositionMode_DestinationOver; update(); }
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void setSourceInMode() { m_composition_mode = QPainter::CompositionMode_SourceIn; update(); }
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void setDestInMode() { m_composition_mode = QPainter::CompositionMode_DestinationIn; update(); }
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void setSourceOutMode() { m_composition_mode = QPainter::CompositionMode_SourceOut; update(); }
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void setDestOutMode() { m_composition_mode = QPainter::CompositionMode_DestinationOut; update(); }
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void setSourceAtopMode() { m_composition_mode = QPainter::CompositionMode_SourceAtop; update(); }
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void setDestAtopMode() { m_composition_mode = QPainter::CompositionMode_DestinationAtop; update(); }
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void setXorMode() { m_composition_mode = QPainter::CompositionMode_Xor; update(); }
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void setPlusMode() { m_composition_mode = QPainter::CompositionMode_Plus; update(); }
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void setMultiplyMode() { m_composition_mode = QPainter::CompositionMode_Multiply; update(); }
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void setScreenMode() { m_composition_mode = QPainter::CompositionMode_Screen; update(); }
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void setOverlayMode() { m_composition_mode = QPainter::CompositionMode_Overlay; update(); }
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void setDarkenMode() { m_composition_mode = QPainter::CompositionMode_Darken; update(); }
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void setLightenMode() { m_composition_mode = QPainter::CompositionMode_Lighten; update(); }
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void setColorDodgeMode() { m_composition_mode = QPainter::CompositionMode_ColorDodge; update(); }
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void setColorBurnMode() { m_composition_mode = QPainter::CompositionMode_ColorBurn; update(); }
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void setHardLightMode() { m_composition_mode = QPainter::CompositionMode_HardLight; update(); }
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void setSoftLightMode() { m_composition_mode = QPainter::CompositionMode_SoftLight; update(); }
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void setDifferenceMode() { m_composition_mode = QPainter::CompositionMode_Difference; update(); }
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void setExclusionMode() { m_composition_mode = QPainter::CompositionMode_Exclusion; update(); }
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void setCircleAlpha(int alpha) { m_circle_alpha = alpha; update(); }
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void setCircleColor(int hue) { m_circle_hue = hue; update(); }
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void setAnimationEnabled(bool enabled);
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private:
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void updateCirclePos();
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void drawBase(QPainter &p);
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void drawSource(QPainter &p);
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QPainter::CompositionMode m_composition_mode;
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QImage m_image;
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QImage m_buffer;
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QImage m_base_buffer;
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int m_circle_alpha;
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int m_circle_hue;
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QPointF m_circle_pos;
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QPointF m_offset;
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ObjectType m_current_object;
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bool m_animation_enabled;
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int m_animationTimer;
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#ifdef QT_OPENGL_SUPPORT
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QGLPixelBuffer *m_pbuffer;
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GLuint m_base_tex;
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GLuint m_compositing_tex;
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int m_pbuffer_size; // width==height==size of pbuffer
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QSize m_previous_size;
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#endif
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};
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#endif // COMPOSITION_H
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