summaryrefslogtreecommitdiffstats
path: root/demos/boxes/scene.h
blob: 79daea9341c86a516ffdae582964106f49c613c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
/****************************************************************************
**
** Copyright (C) 2010 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 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
{
public:
    GraphicsWidget() : QGraphicsProxyWidget(0, Qt::Window) {}
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