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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 SCENE_H
#define SCENE_H
//#include <GL/glew.h>
#include "glextensions.h"
#include <QtGui>
#include <QtOpenGL>
#include "roundedbox.h"
#include "gltrianglemesh.h"
#include "trackball.h"
#include "glbuffers.h"
#include "qtbox.h"
#define PI 3.14159265358979
QT_BEGIN_NAMESPACE
class QMatrix4x4;
QT_END_NAMESPACE
class ParameterEdit : public QWidget
{
public:
virtual void emitChange() = 0;
};
class ColorEdit : public ParameterEdit
{
Q_OBJECT
public:
ColorEdit(QRgb initialColor, int id);
QRgb color() const {return m_color;}
virtual void emitChange() {emit colorChanged(m_color, m_id);}
public slots:
void editDone();
signals:
void colorChanged(QRgb color, int id);
protected:
virtual void mousePressEvent(QMouseEvent *event);
void setColor(QRgb color); // also emits colorChanged()
private:
QGraphicsScene *m_dialogParentScene;
QLineEdit *m_lineEdit;
QFrame *m_button;
QRgb m_color;
int m_id;
};
class FloatEdit : public ParameterEdit
{
Q_OBJECT
public:
FloatEdit(float initialValue, int id);
float value() const {return m_value;}
virtual void emitChange() {emit valueChanged(m_value, m_id);}
public slots:
void editDone();
signals:
void valueChanged(float value, int id);
private:
QGraphicsScene *m_dialogParentScene;
QLineEdit *m_lineEdit;
float m_value;
int m_id;
};
class GraphicsWidget : public QGraphicsProxyWidget
{
protected:
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
virtual void resizeEvent(QGraphicsSceneResizeEvent *event);
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
};
class TwoSidedGraphicsWidget : public QObject
{
Q_OBJECT
public:
TwoSidedGraphicsWidget(QGraphicsScene *scene);
void setWidget(int index, QWidget *widget);
QWidget *widget(int index);
public slots:
void flip();
protected slots:
void animateFlip();
private:
GraphicsWidget *m_proxyWidgets[2];
int m_current;
int m_angle; // angle in degrees
int m_delta;
};
class RenderOptionsDialog : public QDialog
{
Q_OBJECT
public:
RenderOptionsDialog();
int addTexture(const QString &name);
int addShader(const QString &name);
void emitParameterChanged();
protected slots:
void setColorParameter(QRgb color, int id);
void setFloatParameter(float value, int id);
signals:
void dynamicCubemapToggled(int);
void colorParameterChanged(const QString &, QRgb);
void floatParameterChanged(const QString &, float);
void textureChanged(int);
void shaderChanged(int);
void doubleClicked();
protected:
virtual void mouseDoubleClickEvent(QMouseEvent *event);
QVector<QByteArray> m_parameterNames;
QComboBox *m_textureCombo;
QComboBox *m_shaderCombo;
QVector<ParameterEdit *> m_parameterEdits;
};
class ItemDialog : public QDialog
{
Q_OBJECT
public:
enum ItemType {
QtBoxItem,
CircleItem,
SquareItem,
};
ItemDialog();
public slots:
void triggerNewQtBox();
void triggerNewCircleItem();
void triggerNewSquareItem();
signals:
void doubleClicked();
void newItemTriggered(ItemDialog::ItemType type);
protected:
virtual void mouseDoubleClickEvent(QMouseEvent *event);
};
class Scene : public QGraphicsScene
{
Q_OBJECT
public:
Scene(int width, int height, int maxTextureSize);
~Scene();
virtual void drawBackground(QPainter *painter, const QRectF &rect);
public slots:
void setShader(int index);
void setTexture(int index);
void toggleDynamicCubemap(int state);
void setColorParameter(const QString &name, QRgb color);
void setFloatParameter(const QString &name, float value);
void newItem(ItemDialog::ItemType type);
protected:
void renderBoxes(const QMatrix4x4 &view, int excludeBox = -2);
void setStates();
void setLights();
void defaultStates();
void renderCubemaps();
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void wheelEvent(QGraphicsSceneWheelEvent * event);
private:
void initGL();
QPointF pixelPosToViewPos(const QPointF& p);
QTime m_time;
int m_lastTime;
int m_mouseEventTime;
int m_distExp;
int m_frame;
int m_maxTextureSize;
int m_currentShader;
int m_currentTexture;
bool m_dynamicCubemap;
bool m_updateAllCubemaps;
RenderOptionsDialog *m_renderOptions;
ItemDialog *m_itemDialog;
QTimer *m_timer;
GLRoundedBox *m_box;
TrackBall m_trackBalls[3];
QVector<GLTexture *> m_textures;
GLTextureCube *m_environment;
GLTexture3D *m_noise;
GLRenderTargetCube *m_mainCubemap;
QVector<GLRenderTargetCube *> m_cubemaps;
QVector<QGLShaderProgram *> m_programs;
QGLShader *m_vertexShader;
QVector<QGLShader *> m_fragmentShaders;
QGLShader *m_environmentShader;
QGLShaderProgram *m_environmentProgram;
};
#endif
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