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
|
/**************************************************************************\
*
* This file is part of the Coin 3D visualization library.
* Copyright (C) 1998-2005 by Systems in Motion. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* ("GPL") version 2 as published by the Free Software Foundation.
* See the file LICENSE.GPL at the root directory of this source
* distribution for additional information about the GNU GPL.
*
* For using Coin with software that can not be combined with the GNU
* GPL, and for taking advantage of the additional benefits of our
* support services, please contact Systems in Motion about acquiring
* a Coin Professional Edition License.
*
* See <URL:http://www.coin3d.org/> for more information.
*
* Systems in Motion, Postboks 1283, Pirsenteret, 7462 Trondheim, NORWAY.
* <URL:http://www.sim.no/>.
*
\**************************************************************************/
/*
This is just a simple test application to check that we can have
SoQtComponent derived objects within other widgets.
It also demonstrates having multiple views on a scene from multiple
SoQtRenderArea instances.
Note that this example doesn't work correctly with SoQt + TGS'
Inventor for some reason. Looks like a TGS' Inventor bug to me. See
also Bugzilla #20.
mortene@sim.no
*/
/***********************************************************************/
#include <Inventor/Qt/SoQt.h>
#include <Inventor/Qt/SoQtRenderArea.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.h>
#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoCone.h>
#include <Inventor/nodes/SoCube.h>
#include <Inventor/nodes/SoDirectionalLight.h>
#include <Inventor/nodes/SoGroup.h>
#include <Inventor/nodes/SoMaterial.h>
#include <Inventor/nodes/SoPerspectiveCamera.h>
#include <Inventor/nodes/SoRotation.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoSphere.h>
#include <Inventor/nodes/SoTranslation.h>
#include <Inventor/sensors/SoTimerSensor.h>
#include <Inventor/actions/SoGLRenderAction.h>
#include <qapplication.h>
#include <qgroupbox.h>
#include <qlayout.h>
/***********************************************************************/
// Timer callback function will rotate the scene according to the
// current time.
static void
timer_callback(void * data, SoSensor * sensor)
{
static SbTime t = SbTime::getTimeOfDay().getValue();
SbTime timediff = SbTime::getTimeOfDay() - t;
SbRotation rotx(SbVec3f(1, 0, 0), 0.5 * timediff.getValue());
SbRotation roty(SbVec3f(0, 1, 0), timediff.getValue());
SbRotation rotz(SbVec3f(0, 0, 1), 1.5 * timediff.getValue());
SoRotation * scenerotate = (SoRotation *)data;
scenerotate->rotation.setValue(rotx * roty * rotz);
}
// Make a Qt renderarea as a child widget of viewparent, adding the
// scene under common and a camera with the given orientation.
void
add_view(QWidget * viewparent, SoGroup * common, SbRotation cameraorientation)
{
SoSeparator * root = new SoSeparator;
SoPerspectiveCamera * camera = new SoPerspectiveCamera;
camera->orientation = cameraorientation;
root->addChild(camera);
root->addChild(common);
SoQtRenderArea * area = new SoQtRenderArea(viewparent);
area->setSceneGraph(root);
#ifndef __COIN__
// IMPORTANT: make sure each GL context has a unique cache context
// id. this is needed for TGS/SGI Inventor. Coin handles this
// automatically.
static uint32_t contextcnt = 0;
area->getGLRenderAction()->setCacheContext(contextcnt++);
#endif // !__COIN__
camera->viewAll(root, area->getViewportRegion());
}
/***********************************************************************/
int
main(int argc, char ** argv)
{
// Initialize system.
QApplication app(argc, argv);
QWidget * parent = new QWidget;
app.setMainWidget(parent);
SoQt::init(parent);
parent->setMinimumSize(300, 200);
// Set up the Qt widget layout data.
QHBoxLayout * hlayout = new QHBoxLayout(parent);
QGroupBox * view0 = new QGroupBox(parent);
hlayout->addWidget(view0, 0.66);
QVBoxLayout * vlayout = new QVBoxLayout();
hlayout->addLayout(vlayout, 0.33);
QGroupBox * view1 = new QGroupBox(parent);
vlayout->addWidget(view1, 0.50);
QGroupBox * view2 = new QGroupBox(parent);
vlayout->addWidget(view2, 0.50);
// Construct the common part of the scenegraph.
SoGroup * commonroot = new SoGroup;
SoDirectionalLight * light = new SoDirectionalLight;
light->direction.setValue(-0.5, -0.5, -0.8);
commonroot->addChild(light);
SoRotation * scenerotate = new SoRotation;
commonroot->addChild(scenerotate);
if (argc == 2) {
SoInput in;
in.openFile(argv[1]);
SoSeparator * fileroot = SoDB::readAll(&in);
if (!fileroot) exit(1);
commonroot->addChild(fileroot);
}
else {
SoMaterial * mat = new SoMaterial;
mat->diffuseColor.setValue(1, 1, 0);
commonroot->addChild(mat);
SoCube * cube = new SoCube;
commonroot->addChild(cube);
mat = new SoMaterial;
mat->diffuseColor.setValue(0, 0, 1);
commonroot->addChild(mat);
SoTranslation * trans = new SoTranslation;
trans->translation.setValue(0, 0, 1);
commonroot->addChild(trans);
SoSphere * sphere = new SoSphere;
sphere->radius = 0.5;
commonroot->addChild(sphere);
}
// Add the 3 renderareas.
add_view(view0, commonroot, SbRotation(SbVec3f(0, 0, 1), 0));
add_view(view1, commonroot, SbRotation(SbVec3f(0, 1, 0), M_PI / 2.0f));
add_view(view2, commonroot, SbRotation(SbVec3f(1, 0, 0), -M_PI / 2.0f));
// Set up a timer callback to do a simple animation.
SoTimerSensor ts(timer_callback, scenerotate);
ts.setInterval(0.02f); // max 50 fps
ts.schedule();
// Map window and start event loop.
SoQt::show(parent);
SoQt::mainLoop();
return 0;
}
|
