qtgl.cpp 7.4 KB
Newer Older
Sylvain Thery's avatar
Sylvain Thery committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
/*******************************************************************************
* CGoGN: Combinatorial and Geometric modeling with Generic N-dimensional Maps  *
* version 0.1                                                                  *
* Copyright (C) 2009, IGG Team, LSIIT, University of Strasbourg                *
*                                                                              *
* This library is free software; you can redistribute it and/or modify it      *
* under the terms of the GNU Lesser General Public License as published by the *
* Free Software Foundation; either version 2.1 of the License, or (at your     *
* option) any later version.                                                   *
*                                                                              *
* This library is distributed in the hope that it will be useful, but WITHOUT  *
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or        *
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License  *
* for more details.                                                            *
*                                                                              *
* You should have received a copy of the GNU Lesser General Public License     *
* along with this library; if not, write to the Free Software Foundation,      *
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.           *
*                                                                              *
* Web site: https://iggservis.u-strasbg.fr/CGoGN/                              *
* Contact information: cgogn@unistra.fr                                        *
*                                                                              *
*******************************************************************************/
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
24

Sylvain Thery's avatar
Sylvain Thery committed
25
26
27
28
29
30
31
32
33
#include <GL/glew.h>
#include <iostream>
#include "Utils/qtgl.h"
#include "Utils/trackball.h"

#include "Utils/qtSimple.h"

namespace CGoGN
{
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
34

Sylvain Thery's avatar
Sylvain Thery committed
35
36
namespace Utils
{
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
37

Sylvain Thery's avatar
Sylvain Thery committed
38
39
40
namespace QT
{

41

thery's avatar
thery committed
42
float GLWidget::FAR_PLANE=500.0f;
Sylvain Thery's avatar
Sylvain Thery committed
43

44

Sylvain Thery's avatar
Sylvain Thery committed
45
GLWidget::GLWidget(SimpleQT* cbs, QWidget *parent) :
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
46
47
48
	QGLWidget(QGLFormat(QGL::Rgba | QGL::DoubleBuffer| QGL::DepthBuffer), parent),
	m_cbs(cbs),
	m_state_modifier(0)
Sylvain Thery's avatar
Sylvain Thery committed
49
50
51
52
53
{
	makeCurrent();
	glewInit();

	newModel = 1;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
54
55
	m_cbs->trans_x() = 0.;
	m_cbs->trans_y() = 0.;
Sylvain Thery's avatar
Sylvain Thery committed
56
	float f = FAR_PLANE;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
57
58
	m_cbs->trans_z() = -f / 5.0f;
	foc = 2.0f;
Sylvain Thery's avatar
Sylvain Thery committed
59
60

	// init trackball
61
	trackball(m_cbs->curquat(), 0.0f, 0.0f, 0.0f, 0.0f);
Sylvain Thery's avatar
Sylvain Thery committed
62
63
64
65
66
67
68
69
}

GLWidget::~GLWidget()
{
}

void GLWidget::setParamObject(float width, float* pos)
{
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
70
71
	m_obj_sc = ((FAR_PLANE / 5.0f) / foc) / width;
	m_obj_pos = glm::vec3(-pos[0], -pos[1], -pos[2]);
Sylvain Thery's avatar
Sylvain Thery committed
72
73
74
75
}

void  GLWidget::setFocal(float df)
{
76
77
	if (df > 5.0f)
		df = 5.0f;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
78
79
	if (df < 0.2f)
		df = 0.2f;
Sylvain Thery's avatar
Sylvain Thery committed
80

Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
81
	m_obj_sc *= foc / df;
Sylvain Thery's avatar
Sylvain Thery committed
82
83

	foc = df;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
84
	resizeGL(W, H);
Sylvain Thery's avatar
Sylvain Thery committed
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
}

QSize GLWidget::minimumSizeHint() const
{
    return QSize(200, 200);
}

QSize GLWidget::sizeHint() const
{
    return QSize(500, 500);
}

void GLWidget::recalcModelView()
{
	glm::mat4 m;

	oglPushModelViewMatrix();
102

Sylvain Thery's avatar
Sylvain Thery committed
103
	// positionne l'objet / mvt souris
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
104
	oglTranslate(m_cbs->trans_x(), m_cbs->trans_y(), m_cbs->trans_z());
Sylvain Thery's avatar
Sylvain Thery committed
105
106

	// tourne l'objet / mvt souris
107
	build_rotmatrixgl3(m, m_cbs->curquat());
Sylvain Thery's avatar
Sylvain Thery committed
108
109
110
111
	// update matrice
	m_cbs->modelViewMatrix() *= m;

	// transfo pour que l'objet soit centre et a la bonne taille
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
112
	oglScale(m_obj_sc, m_obj_sc, m_obj_sc);
Sylvain Thery's avatar
Sylvain Thery committed
113
114
	oglTranslate(m_obj_pos[0], m_obj_pos[1], m_obj_pos[2]);

115
116
117
	// ajout transformation in screen
	m_cbs->modelViewMatrix()*= m_cbs->transfoMatrix();

Sylvain Thery's avatar
Sylvain Thery committed
118
119
120
121
	newModel = 0;

	if (m_cbs)
		m_cbs->cb_updateMatrix();
122
123

	oglPopModelViewMatrix();
Sylvain Thery's avatar
Sylvain Thery committed
124
125
126
127
128
129
130
131
132
133
134
135
}

void GLWidget::initializeGL()
{
	glEnable(GL_DEPTH_TEST);

	if (m_cbs)
		m_cbs->cb_initGL();
}

void GLWidget::resizeGL(int w, int h)
{
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
136
137
	if (w > 0) W = w;
	if (h > 0) H = h;
Sylvain Thery's avatar
Sylvain Thery committed
138

Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
139
	glViewport(0, 0, W, H);
Sylvain Thery's avatar
Sylvain Thery committed
140
	float f = FAR_PLANE;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
141
	m_cbs->projectionMatrix() = glm::frustum(-1.0f, 1.0f, -1.0f * H / W, 1.0f * H / W, foc, f);
Sylvain Thery's avatar
Sylvain Thery committed
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159

	recalcModelView();
}

void GLWidget::paintGL()
{
	if (newModel)
	    recalcModelView();

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	if (m_cbs)
		m_cbs->cb_redraw();
}

void GLWidget::mousePressEvent(QMouseEvent* event)
{
	beginx = event->x();
	beginy = event->y();
160
	clickPoint = event->pos();
Sylvain Thery's avatar
Sylvain Thery committed
161
162
163
	m_current_button = event->button();

	if (m_cbs)
164
		m_cbs->cb_mousePress(event->button(), event->x(), getHeight() - event->y());
Sylvain Thery's avatar
Sylvain Thery committed
165
166
167
168
169
}

void GLWidget::mouseReleaseEvent(QMouseEvent* event)
{
	if (m_cbs)
170
171
172
173
		m_cbs->cb_mouseRelease(event->button(), event->x(), getHeight() - event->y());

	if(event->pos() == clickPoint)
		mouseClickEvent(event) ;
Sylvain Thery's avatar
Sylvain Thery committed
174
175
}

176
void GLWidget::mouseClickEvent(QMouseEvent* event)
Sylvain Thery's avatar
Sylvain Thery committed
177
{
178
179
180
	if (m_cbs)
		m_cbs->cb_mouseClick(event->button(), event->x(), getHeight() - event->y());
}
Sylvain Thery's avatar
Sylvain Thery committed
181

182
183
void GLWidget::mouseMoveEvent(QMouseEvent* event)
{
184
185
	// move object only if no special keys pressed
	if (!(m_state_modifier & ( Qt::ShiftModifier|Qt::ControlModifier|Qt::AltModifier| Qt::MetaModifier)))
Sylvain Thery's avatar
Sylvain Thery committed
186
	{
187
188
189
190
		int x = event->x();
		int y = event->y();

		switch (m_current_button)
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
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
			case Qt::RightButton:
			{
				float wl;
				if (m_cbs->trans_z() > -20.0f)
					wl = 20.0f / foc;
				else
					wl = -2.0f * m_cbs->trans_z() / foc;
				m_cbs->trans_x() += wl / W * (x - beginx);
				m_cbs->trans_y() += wl / H * (beginy - y);
			}
				break;
			case Qt::MidButton:
			{
				float wl = -0.5f * FAR_PLANE / foc;
				m_cbs->trans_z() -= wl / W * (x - beginx);
				m_cbs->trans_z() -= wl / H * (y - beginy);
			}
				break;
			case Qt::LeftButton:
			{
				trackball(
					m_cbs->lastquat(),
					(2.0f * beginx - W) / W,
					(H - 2.0f * beginy) / H,
					(2.0f * x - W) / W,(H - 2.0f * y) / H
				);
				add_quats(m_cbs->lastquat(), m_cbs->curquat(), m_cbs->curquat());
			}
				break;
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
221
222
		}

223
224
225
226
227
		beginx = x;
		beginy = y;
		newModel = 1;
		updateGL();
	}
Sylvain Thery's avatar
Sylvain Thery committed
228
229

	if (m_cbs)
230
		m_cbs->cb_mouseMove(event->button(), event->x(), getHeight() - event->y());
Sylvain Thery's avatar
Sylvain Thery committed
231
232
}

233
void GLWidget::wheelEvent(QWheelEvent* event)
Sylvain Thery's avatar
Sylvain Thery committed
234
{
235
	float wl = -0.05f * FAR_PLANE / foc;
Sylvain Thery's avatar
Sylvain Thery committed
236
237

	if (event->delta() > 0)
238
		m_cbs->trans_z() += wl;
Sylvain Thery's avatar
Sylvain Thery committed
239
	else
240
		m_cbs->trans_z() -= wl;
Sylvain Thery's avatar
Sylvain Thery committed
241
242
243

	newModel = 1;
	updateGL();
Pierre Kraemer's avatar
Pierre Kraemer committed
244
245
246

	if (m_cbs)
		m_cbs->cb_wheelEvent(event->delta(), event->x(), getHeight() - event->y());
Sylvain Thery's avatar
Sylvain Thery committed
247
248
}

249
void GLWidget::keyPressEvent(QKeyEvent* event)
Sylvain Thery's avatar
Sylvain Thery committed
250
251
252
253
{
    if (event->key() == Qt::Key_Escape)
        close();
    else
Sylvain Thery's avatar
Sylvain Thery committed
254
    	QWidget::keyPressEvent(event);
Sylvain Thery's avatar
Sylvain Thery committed
255
256
257
258

    m_state_modifier = event->modifiers();

    int k = event->key();
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
259
260
    if ( (k >= 65) && (k <= 91) && !(event->modifiers() & Qt::ShiftModifier) )
    	k += 32;
Sylvain Thery's avatar
Sylvain Thery committed
261

262
    if (m_cbs)
Sylvain Thery's avatar
Sylvain Thery committed
263
264
265
266
267
		m_cbs->cb_keyPress(k);
}

void GLWidget::keyReleaseEvent(QKeyEvent *event)
{
Sylvain Thery's avatar
Sylvain Thery committed
268
269
	QWidget::keyReleaseEvent(event);

Sylvain Thery's avatar
Sylvain Thery committed
270
271
272
	m_state_modifier = event->modifiers();

    int k = event->key();
Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
273
    if ( (k >= 65) && (k <= 91) && (event->modifiers() != Qt::ShiftModifier) )
274
    	k += 32;
Sylvain Thery's avatar
Sylvain Thery committed
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308

	if (m_cbs)
		m_cbs->cb_keyRelease(k);
}

void GLWidget::oglRotate(float angle, float x, float y, float z)
{
	m_cbs->modelViewMatrix() = glm::rotate(m_cbs->modelViewMatrix(), angle, glm::vec3(x,y,z));
}

void GLWidget::oglTranslate(float tx, float ty, float tz)
{
	m_cbs->modelViewMatrix() = glm::translate(m_cbs->modelViewMatrix(), glm::vec3(tx,ty,tz));
}

void GLWidget::oglScale(float sx, float sy, float sz)
{
	m_cbs->modelViewMatrix() = glm::scale(m_cbs->modelViewMatrix(), glm::vec3(sx,sy,sz));
}

void GLWidget::oglPushModelViewMatrix()
{
	m_stack_mv.push(m_cbs->modelViewMatrix());
}

bool GLWidget::oglPopModelViewMatrix()
{
	if (m_stack_mv.empty())
		return false;
	m_cbs->modelViewMatrix() = m_stack_mv.top();
	m_stack_mv.pop();
	return true;
}

Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
309
} // namespace QT
Sylvain Thery's avatar
Sylvain Thery committed
310

Pierre Kraemer's avatar
merge..    
Pierre Kraemer committed
311
312
313
} // namespace Utils

} // namespace CGoGN