qt5base-lts/demos/composition/composition.h
Qt by Nokia 38be0d1383 Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
2011-04-27 12:05:43 +02:00

194 lines
6.6 KiB
C++

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
** this package.
**
** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@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 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; }
protected:
void mousePressEvent(QMouseEvent *);
void mouseMoveEvent(QMouseEvent *);
void mouseReleaseEvent(QMouseEvent *);
void timerEvent(QTimerEvent *);
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);
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;
int m_animationTimer;
#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