QtBaseViewer.cc 50.1 KB
Newer Older
Jan Möbius's avatar
 
Jan Möbius committed
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
//=============================================================================
//
//                               OpenFlipper
//        Copyright (C) 2008 by Computer Graphics Group, RWTH Aachen
//                           www.openflipper.org
//
//-----------------------------------------------------------------------------
//
//                                License
//
//  OpenFlipper 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 3 of the License, or
//  (at your option) any later version.
//
//  OpenFlipper 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 OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
//
Jan Möbius's avatar
Jan Möbius committed
26
27
28
//   $Revision$
//   $Author$
//   $Date$
Jan Möbius's avatar
 
Jan Möbius committed
29
30
31
32
33
34
35
36
//
//=============================================================================




//=============================================================================
//
Jan Möbius's avatar
 
Jan Möbius committed
37
//  CLASS glViewer - IMPLEMENTATION
Jan Möbius's avatar
 
Jan Möbius committed
38
39
40
41
42
43
44
45
46
//
//=============================================================================


//== INCLUDES =================================================================

#include "QtBaseViewer.hh"
#include "QtGLGraphicsScene.hh"
#include "QtGLGraphicsView.hh"
Jan Möbius's avatar
Jan Möbius committed
47
#include "QtGLViewerLayout.hh"
Jan Möbius's avatar
 
Jan Möbius committed
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
#include <ACG/QtWidgets/QtWheel.hh>
#include <ACG/Scenegraph/DrawModes.hh>
#include <ACG/GL/gl.hh>

#include <iostream>
#include <string>
#include <assert.h>

#include <QMimeData>
#include <QToolButton>
#include <QFrame>

#include <QClipboard>
#include <QApplication>
#include <QSplitter>
#include <QLayout>
#include <QPushButton>
#include <QLabel>
#include <QStatusBar>
#include <QImage>
#include <QColorDialog>
#include <QFileDialog>
#include <QToolTip>
#include <QTextStream>
#include <QDateTime>
#include <QTimer>

#include <QDesktopWidget>
#include <QMouseEvent>
#include <QVBoxLayout>
#include <QKeyEvent>
#include <QGridLayout>
#include <QContextMenuEvent>
#include <QWheelEvent>
#include <QDropEvent>
#include <QPixmap>
#include <QMenu>
#include <QVariant>
#include <QButtonGroup>
#include <QToolBar>

#include <QGraphicsWidget>
#include <QGraphicsGridLayout>
#include <QGraphicsProxyWidget>
Jan Möbius's avatar
 
Jan Möbius committed
92
93
#include <QPainter>
#include <QPaintEngine>
Jan Möbius's avatar
 
Jan Möbius committed
94
95
96
97
98
99
100
101
102

#ifdef max
#  undef max
#endif

#ifdef min
#  undef min
#endif

103
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
Jan Möbius's avatar
 
Jan Möbius committed
104

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
105
106
#include <OpenFlipper/common/GlobalOptions.hh>

Jan Möbius's avatar
 
Jan Möbius committed
107
108
109
110
111
112
113
114
115
116
117
118
//== NAMESPACES ===============================================================



//== IMPLEMENTATION ==========================================================

static const char          VIEW_MAGIC[] =
  "ACG::QtWidgets::QGLViewerWidget encoded view";

//== IMPLEMENTATION ==========================================================


Jan Möbius's avatar
 
Jan Möbius committed
119
glViewer::glViewer( QtGLGraphicsScene* _scene,
120
                    QGLWidget* _glWidget,
121
                    Viewer::ViewerProperties& _properties,
122
123
124
125
                    unsigned int _id,
                    QGraphicsWidget* _parent,
                    const char* /* _name */ ,
                    QStatusBar *_statusBar) :
Jan Möbius's avatar
 
Jan Möbius committed
126
  QGraphicsWidget(_parent),
127
  statusbar_(_statusBar),
Jan Möbius's avatar
 
Jan Möbius committed
128
129
130
  glareaGrabbed_(false),
  projectionUpdateLocked_(false),
  blending_(true),
Jan Möbius's avatar
 
Jan Möbius committed
131
132
  glScene_(_scene),
  glWidget_(_glWidget),
133
  id_(_id),
Dirk Wilden's avatar
Dirk Wilden committed
134
  properties_(_properties),
135
  glstate_(0)
Jan Möbius's avatar
 
Jan Möbius committed
136
137
138
{

  // widget stuff
Jan Möbius's avatar
 
Jan Möbius committed
139
  createWidgets(_statusBar);
Jan Möbius's avatar
 
Jan Möbius committed
140
141
142

  // bind GL context to GL state class
  glstate_ = new ACG::GLState();
143
144
  properties_.setglState( glstate_ );

Jan Möbius's avatar
 
Jan Möbius committed
145
146
147
148
149
150
151
152
153
154
155
  // state
  orthoWidth_       = 2.0;
  isRotating_       = false;
  near_             = 0.1;
  far_              = 100.0;
  fovy_             = 45.0;

  sceneGraphRoot_   = 0;

  normalsMode_      = DONT_TOUCH_NORMALS;
  projectionMode_   = PERSPECTIVE_PROJECTION;
156

Jan Möbius's avatar
 
Jan Möbius committed
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

  light_matrix_.identity();

  trackMouse_ = false;

  // stereo
  stereo_ = false;

  // Note: we start locked (initialization of updateLocked_)
  // will be unlocked in initializeGL()

  QSizePolicy sp = sizePolicy();
  sp.setHorizontalPolicy( QSizePolicy::Expanding );
  sp.setVerticalPolicy( QSizePolicy::Expanding );
  sp.setHorizontalStretch( 1 );
  sp.setVerticalStretch( 1 );
  setSizePolicy( sp );

  redrawTime_.start ();

177
178
179
180
181
182
183
  // timer for animation
  timer_ = new QTimer( this );
  connect( timer_, SIGNAL(timeout()), this, SLOT( slotAnimation()) );

  allowRotation_ = true;


Jan Möbius's avatar
 
Jan Möbius committed
184
185
186
  connect( &properties_,SIGNAL(updated()), this, SLOT( slotPropertiesUpdated() ) );


Dirk Wilden's avatar
Dirk Wilden committed
187
188
189
  //check for updated properties once
  slotPropertiesUpdated();

Jan Möbius's avatar
 
Jan Möbius committed
190
  setAcceptDrops(true);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
191

192
  setHome();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
193
194
195
196
197
198
199
200

  // initialize custom anaglyph stereo
  agTexWidth_ = 0;
  agTexHeight_ = 0;
  agTexture_[0] = 0;
  agTexture_[1] = 0;
  agProgram_ = 0;
  customAnaglyphSupported_ = false;
Jan Möbius's avatar
 
Jan Möbius committed
201
202
203
204
205
206
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
207
glViewer::~glViewer()
Jan Möbius's avatar
 
Jan Möbius committed
208
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
209
  finiCustomAnaglyphStereo ();
Jan Möbius's avatar
 
Jan Möbius committed
210
211
212
213
214
215
216
217
  delete glstate_;
}


//-----------------------------------------------------------------------------


QSize
Jan Möbius's avatar
 
Jan Möbius committed
218
glViewer::sizeHint() const
Jan Möbius's avatar
 
Jan Möbius committed
219
220
221
222
223
224
225
226
{
  return QSize( 600, 600 );
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
227
void glViewer::setStatusBar(QStatusBar* _sb)
Jan Möbius's avatar
 
Jan Möbius committed
228
{
229
  statusbar_ = _sb;
Jan Möbius's avatar
 
Jan Möbius committed
230
231
232
233
234
}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
235
void glViewer::makeCurrent() {
Jan Möbius's avatar
 
Jan Möbius committed
236
237
238
  glWidget_->makeCurrent();
}

Jan Möbius's avatar
 
Jan Möbius committed
239
void glViewer::swapBuffers() {
Jan Möbius's avatar
 
Jan Möbius committed
240
241
242
243
244
245
246
  glWidget_->swapBuffers();
}


//-----------------------------------------------------------------------------


247
void glViewer::sceneGraph(ACG::SceneGraph::BaseNode* _root, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
248
{
Jan Möbius's avatar
Jan Möbius committed
249
250
//   if (sceneGraphRoot_ == _root)
//     return;
Jan Möbius's avatar
Jan Möbius committed
251

Jan Möbius's avatar
 
Jan Möbius committed
252
253
  sceneGraphRoot_ = _root;

Jan Möbius's avatar
Jan Möbius committed
254
  if (sceneGraphRoot_ )
Jan Möbius's avatar
 
Jan Möbius committed
255
256
257
258
259
260
261
262
263
264
  {
    // get scene size
    ACG::SceneGraph::BoundingBoxAction act;
    ACG::SceneGraph::traverse(sceneGraphRoot_, act);

    ACG::Vec3d bbmin = (ACG::Vec3d) act.bbMin();
    ACG::Vec3d bbmax = (ACG::Vec3d) act.bbMax();

    if ( ( bbmin[0] > bbmax[0] ) ||
         ( bbmin[1] > bbmax[1] ) ||
265
         ( bbmin[2] > bbmax[2] )   )
266
      setScenePos( ACG::Vec3d( 0.0,0.0,0.0 ) , 1.0, _setCenter );
267
268
    else
      setScenePos( ( bbmin + bbmax )        * 0.5,
269
270
                   ( bbmax - bbmin ).norm() * 0.5,
                   _setCenter);
Jan Möbius's avatar
 
Jan Möbius committed
271
272
273
274
275
276
277
278
279
280
281
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
282
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
283
284
285
286
287
288
289
{
  trackMouse_ = _track;
}


//-----------------------------------------------------------------------------

Jan Möbius's avatar
 
Jan Möbius committed
290
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
291
292
293
294
295
296
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
297
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
298
299
300
301
302
303
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
304
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
305
306
307
308
309
310
311
312
313
314
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
315
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
316
317
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
318
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
319
  else
320
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
321
322
323
324
325

  updateProjectionMatrix();
}


Jan Möbius's avatar
 
Jan Möbius committed
326
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
327
328
329
330
331
332
333
334
335
336
337
338
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

  switch (projectionMode_)
  {
    case ORTHOGRAPHIC_PROJECTION:
    {
Jan Möbius's avatar
Jan Möbius committed
339
340
341
342
343
      double aspect;

      if (isVisible())
        aspect = (double) glWidth() / (double) glHeight();
      else
344
	     aspect = 1.0;
Jan Möbius's avatar
Jan Möbius committed
345

Jan Möbius's avatar
 
Jan Möbius committed
346
      glstate_->ortho( -orthoWidth_, orthoWidth_,
347
348
		                 -orthoWidth_/aspect, orthoWidth_/aspect,
		                 near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
349
350
351
352
353
354
      break;
    }

    case PERSPECTIVE_PROJECTION:
    {
      glstate_->perspective(fovy_,
355
356
			                   (GLdouble) glWidth() / (GLdouble) glHeight(),
			                   near_, far_);
Jan Möbius's avatar
 
Jan Möbius committed
357
358
359
360
361
362
363
364
365
      break;
    }
  }
}


//-----------------------------------------------------------------------------


366
void glViewer::setScenePos(const ACG::Vec3d& _center, double _radius, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
367
{
368
369
370
	if(_setCenter) {
		scene_center_ = trackball_center_ = _center;
	}
Jan Möbius's avatar
 
Jan Möbius committed
371

372
	scene_radius_ = trackball_radius_ = _radius;
Jan Möbius's avatar
 
Jan Möbius committed
373

374
375
376
377
378
379
	orthoWidth_ = 2.0   * scene_radius_;
	near_       = 0.001 * scene_radius_;
	far_        = 10.0  * scene_radius_;

	updateProjectionMatrix();
	updateGL();
380
381
}

382
383
384
385
386
387
//-----------------------------------------------------------------------------

void glViewer::setSceneCenter( const ACG::Vec3d& _center ) {

	scene_center_ = trackball_center_ = _center;
}
388
389
390
391

//----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
392
void glViewer::viewingDirection( const ACG::Vec3d& _dir, const ACG::Vec3d& _up )
Jan Möbius's avatar
 
Jan Möbius committed
393
394
395
396
397
398
399
400
401
402
403
404
{
  // calc eye point for this direction
  ACG::Vec3d eye = scene_center_ - _dir*(3.0*scene_radius_);

  glstate_->reset_modelview();
  glstate_->lookAt((ACG::Vec3d)eye, (ACG::Vec3d)scene_center_, (ACG::Vec3d)_up);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
405
void glViewer::normalsMode(NormalsMode _mode)
Jan Möbius's avatar
 
Jan Möbius committed
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
{
  makeCurrent();

  switch(normalsMode_ = _mode)
  {
    case DONT_TOUCH_NORMALS:
      glDisable(GL_NORMALIZE);
      break;

    case NORMALIZE_NORMALS:
      glEnable(GL_NORMALIZE);
      break;
  }

  updateGL();
}


//-----------------------------------------------------------------------------


void
Jan Möbius's avatar
 
Jan Möbius committed
428
glViewer::copyToImage( QImage& _image,
Jan Möbius's avatar
Jan Möbius committed
429
430
		       unsigned int _l, unsigned int _t,
		       unsigned int _w, unsigned int _h,
Jan Möbius's avatar
 
Jan Möbius committed
431
432
433
			   GLenum /* _buffer */ )
{
  makeCurrent();
Jan Möbius's avatar
Jan Möbius committed
434
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
435
436
437
438
439
440
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
441
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
442
{
Jan Möbius's avatar
 
Jan Möbius committed
443
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
444
  {
Jan Möbius's avatar
 
Jan Möbius committed
445
    update();
446
447

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
448
449
450
451
452
453
454
455
  }
}



//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
456
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
457
458
459
460
461
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
 
Jan Möbius committed
462
463
464
465
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
466
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
 
Jan Möbius committed
467
468

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
469
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486

  // Set near plane
  near_   = std::max(0.0001f * scene_radius_,  -(c[2] + scene_radius_));

  // measure distance from scene center ( as projection onto the z-Axis )
//   if ( -c[2] < scene_radius_ ) {
//     std::cerr << "Camera in scene radius" << std::endl;
//
//   }
//
//   std::cerr << "-c[2]   : " << -c[2] << std::endl;
//   std::cerr << "radius  : " << scene_radius_ << std::endl;
//   std::cerr << "z-range : " << far_ - near_ << std::endl;
//   std::cerr << "Near    : " << near_ << std::endl;
//   std::cerr << "Far     : " << far_ << std::endl;
//   near_   = std::max(far_ / 256.0f,  -(c[2] + scene_radius_));

Jan Möbius's avatar
 
Jan Möbius committed
487
488
489
490
491
492
493
494
495
496
497
498
  updateProjectionMatrix();

  // store time since last repaint in gl state and restart timer
  glstate_->set_msSinceLastRedraw (redrawTime_.restart ());

  // draw mono or stereo
  makeCurrent();
  if (stereo_) drawScene_stereo();
  else         drawScene_mono();

  glFinish();
  frame_time_ = timer.elapsed();
Jan Möbius's avatar
Jan Möbius committed
499
500


Jan Möbius's avatar
 
Jan Möbius committed
501
502
503
504
505
506
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
507
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
508
509
510
{
  if (sceneGraphRoot_)
  {
511
    if (! properties_.renderPicking() ) {
512
513
      ACG::SceneGraph::DrawAction action( properties_.drawMode() , false);
      ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
514
515
516

      if( blending_ )
      {
517
518
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), true);
        ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
519
520
521
522
523
524
525
      }
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
526
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
527
528
529
530
531
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
532
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
533
534
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
      ACG::SceneGraph::traverse(sceneGraphRoot_, action);
Jan Möbius's avatar
 
Jan Möbius committed
535
536

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
537
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
538
539
    }
  }
Jan Möbius's avatar
Jan Möbius committed
540
541

  draw_lights();
Jan Möbius's avatar
 
Jan Möbius committed
542
543
544
545
546
547
548
}


//-----------------------------------------------------------------------------


void
Jan Möbius's avatar
 
Jan Möbius committed
549
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
550
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
551
552
553
554
555
556
557
558
559
560
561
562
563
  if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::OpenGL && OpenFlipper::Options::glStereo ())
  {
    drawScene_glStereo ();
    return;
  }
  else if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::AnaglyphCustom && customAnaglyphSupported_)
  {
    drawScene_customAnaglyphStereo ();

    // if somthing went wrong, fallback to normal anaglyph
    if (customAnaglyphSupported_)
      return;
  }
Jan Möbius's avatar
 
Jan Möbius committed
564

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
565
566
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
567
568
569
570
571


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
572
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
573
574
575
576
577
578
579
580
581
{
  home_modelview_          = glstate_->modelview();
  home_inverse_modelview_  = glstate_->inverse_modelview();
  homeOrthoWidth_          = orthoWidth_;
  home_center_             = trackball_center_;
  home_radius_             = trackball_radius_;
}


Jan Möbius's avatar
 
Jan Möbius committed
582
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
{
  makeCurrent();
  glstate_->set_modelview(home_modelview_, home_inverse_modelview_);
  orthoWidth_ = homeOrthoWidth_;
  trackball_center_ = home_center_;
  trackball_radius_ = home_radius_;
  updateProjectionMatrix();
  updateGL();

}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
598
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
599
{
600
	makeCurrent();
Jan Möbius's avatar
 
Jan Möbius committed
601

602
603
	// update scene graph (get new bounding box and set projection right, including near and far plane)
	properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
604

605
606
607
608
609
610
611
612
613
614
615
616
617
618
	// move center (in camera coords) to origin and translate in -z dir
	translate(-(glstate_->modelview().transform_point(scene_center_))
			- ACG::Vec3d(0.0, 0.0, 3.0 * scene_radius_));

	orthoWidth_ = 1.1 * scene_radius_;
	double aspect = (double) glWidth() / (double) glHeight();
	if (aspect > 1.0)
		orthoWidth_ *= aspect;

	sceneGraph(PluginFunctions::getSceneGraphRootNode(), true);

	properties_.unLockUpdate();
	updateProjectionMatrix();
	updateGL();
Jan Möbius's avatar
 
Jan Möbius committed
619
620
621
622
623
624
625

}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
626
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
627
628
629
630
631
632
633
634
635
636
{
  makeCurrent();

  unsigned int nodeIdx, targetIdx;
  ACG::Vec3d hitPoint;

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
637
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
      ACG::Vec3d t = hitPoint - eye;
      ACG::Vec3d e = eye + t * (_move_back ? -0.5f : 0.5f);
      flyTo(e, hitPoint, 300);
    }
    else
    {
      // Zoom in or out?
      orthoWidth_ *= _move_back ? 2.0 : 0.5;

      // Set the double click point as the new trackball center
      // Rotations will use this point as the center.
      trackball_center_ = hitPoint;

      /// @todo : Translate view such that hitpoint is in center of viewport

      // Update the projection matrix
      updateProjectionMatrix();

      // Redraw scene
      updateGL();
    }

Jan Möbius's avatar
Jan Möbius committed
660

Jan Möbius's avatar
 
Jan Möbius committed
661
662
663
664
  }
}


Jan Möbius's avatar
 
Jan Möbius committed
665
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
			 const ACG::Vec3d&  _center,
			 double        _time)
{
  makeCurrent();

  // compute rotation
  ACG::Vec3d c = glstate_->modelview().transform_point(_center);
  ACG::Vec3d p = glstate_->modelview().transform_point(_position);
  ACG::Vec3d view =(p-c).normalize();
  ACG::Vec3d z(0,0,1);
  ACG::Vec3d axis = (z % -view).normalize();
  double angle = acos(std::max(-1.0,
			      std::min(1.0,
				       (z | view)))) / M_PI * 180.0;

  if (angle > 175)
    axis  = ACG::Vec3d(0,1,0);


  // compute translation
  ACG::Vec3d target = glstate_->modelview().transform_point(_center);
  ACG::Vec3d trans ( -target[0],
		-target[1],
		-target[2] - (_position-_center).norm() );



  // how many frames in _time ms ?
  unsigned int  frames = (unsigned int)(_time / frame_time_);
  if (frames > 1000) frames=1000;




  // animate it
  if (frames > 10)
  {
    ACG::Vec3d t = trans / (double)frames;
    double a = angle / (double)frames;

    for (unsigned int i=0; i<frames; ++i)
    {
      translate(t);
      if (fabs(a) > FLT_MIN)
	     rotate(axis, a, _center);

Jan Möbius's avatar
 
Jan Möbius committed
712
713
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
    }
  }


  // no animation
  else
  {
    translate(trans);
    if (fabs(angle) > FLT_MIN)
      rotate(axis, angle, _center);

    updateGL();
  }


  trackball_center_ = _center;
  trackball_radius_ = std::max(scene_radius_,
			       (_center-_position).norm()*0.9f);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
738
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
739
740
741
742
743
744
745
746
747
748
749
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
750
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
751
752
753
{

  // lock update
754
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
755
756
757
758
759
760
761
762
763
764
765
766
767
768

  // init GL state
  glstate_->initialize();

  // OpenGL state
  glEnable(GL_DEPTH_TEST);
  glEnable(GL_LIGHTING);
  glDisable(GL_DITHER);
  glShadeModel( GL_FLAT );


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

769
  // Update all settings which would require a redraw
770
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799

  // light sources
  light_matrix_.identity();
  update_lights();


  // scene pos and size
  scene_center_ = trackball_center_ = ACG::Vec3d( 0.0, 0.0, 0.0 );
  scene_radius_ = trackball_radius_ = 1.0;
  orthoWidth_   = 2.0;


  // modelview
  glstate_->translate(0.0, 0.0, -3.0);
  setHome();


  // pixel transfer
  glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
  glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
  glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
  glPixelStorei(GL_PACK_ROW_LENGTH, 0);
  glPixelStorei(GL_PACK_SKIP_ROWS, 0);
  glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
  glPixelStorei(GL_PACK_ALIGNMENT, 1);


  // unlock update (we started locked)
800
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
801
802
803
804
805

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
Jan Möbius's avatar
 
Jan Möbius committed
806
807
808
809
810
}


//-----------------------------------------------------------------------------

Jan Möbius's avatar
Jan Möbius committed
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
/**
 *
 */
void  glViewer::draw_lights() {
//   makeCurrent();
// //
//   glMatrixMode(GL_MODELVIEW);
//   glPushMatrix();
//   glLoadIdentity();
//   glMultMatrixd(light_matrix_.data());
//
//   std::cerr << "light_matrix_\n" << light_matrix_ << std::endl;
// //
//   glPointSize(3);
// //
//   glColor3f(1.0,1.0,1.0);
// //   glDisable(GL_LIGHTING);
// //   glDisable(GL_BLEND);
//   glBegin(GL_LINES);
//     glVertex3f(0.0,  0.0, -1000.0);
//     glVertex3f(0.0,  0.0, 10000.0);
//     glVertex3f(0.0, -1000.0,0.0);
//     glVertex3f(0.0, 1000.0,0.0);
//     glVertex3f(1000.0,0.0,0.0);
//     glVertex3f(-1000.0,0.0,0.0);
// //     glVertex3d(0.0,  0.0, 1.1);
// //     glVertex3d(-1.0,  1.0, 0.8);
// //     glVertex3d( 1.0,  1.0, 0.8);
//
//   glEnd();
// //   glEnable(GL_LIGHTING);
// //   glEnable(GL_BLEND);
// //
//   glPopMatrix();

}
Jan Möbius's avatar
 
Jan Möbius committed
847

Jan Möbius's avatar
 
Jan Möbius committed
848
void glViewer::update_lights()
Jan Möbius's avatar
 
Jan Möbius committed
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
{
  makeCurrent();

  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glLoadIdentity();
  glMultMatrixd(light_matrix_.data());

  GLfloat pos[4], col[4];

  col[0] = col[1] = col[2] = 0.7;
  pos[3] = col[3] = 0.0;

#define SET_LIGHT(i,x,y,z) { 			\
    pos[0]=x; pos[1]=y; pos[2]=z;		\
    glLightfv(GL_LIGHT##i, GL_POSITION, pos);	\
    glLightfv(GL_LIGHT##i, GL_DIFFUSE,  col);	\
    glLightfv(GL_LIGHT##i, GL_SPECULAR, col);	\
    glEnable(GL_LIGHT##i);			\
  }

  SET_LIGHT(0,  0.0,  0.0, 1.0);
  SET_LIGHT(1, -1.0,  1.0, 0.7);
  SET_LIGHT(2,  1.0,  1.0, 0.7);

  col[0] = col[1] = col[2] = 0.3; col[3] = 1.0;
  glLightModelfv(GL_LIGHT_MODEL_AMBIENT, col);

  glPopMatrix();
}


Jan Möbius's avatar
 
Jan Möbius committed
881
void glViewer::rotate_lights(ACG::Vec3d& _axis, double _angle)
Jan Möbius's avatar
 
Jan Möbius committed
882
883
884
885
886
887
888
889
890
{
  light_matrix_.rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  update_lights();
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
891
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
892
893
894
895
896
{
  static bool initialized = false;
  if (!initialized)
  {
    // lock update
897
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924

    // init GL state
    glstate_->initialize();

    // initialize lights
    light_matrix_.identity();

    // scene pos and size
    scene_center_ = trackball_center_ = ACG::Vec3d( 0.0, 0.0, 0.0 );
    scene_radius_ = trackball_radius_ = 1.0;
    orthoWidth_   = 2.0;

    // modelview
    glstate_->translate(0.0, 0.0, -3.0);
    setHome();

    // pixel transfer
    glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
    glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
    glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
    glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
    glPixelStorei(GL_PACK_ROW_LENGTH, 0);
    glPixelStorei(GL_PACK_SKIP_ROWS, 0);
    glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
    glPixelStorei(GL_PACK_ALIGNMENT, 1);

    // unlock update (we started locked)
925
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
926
927
928
929

    initialized = true;
  }

930
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
931
  {
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
932
933
    ACG::Vec4f clear_color;

934
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951

    glPushAttrib (GL_ALL_ATTRIB_BITS);

    glEnable(GL_DEPTH_TEST);
    glEnable(GL_LIGHTING);
    glDisable(GL_DITHER);
    glShadeModel( GL_FLAT );

    glMatrixMode(GL_PROJECTION);
    glPushMatrix();

    glMatrixMode(GL_MODELVIEW);
    glPushMatrix();


    normalsMode(      normalsMode_      );

952
    applyProperties();
953

Jan Möbius's avatar
 
Jan Möbius committed
954
955
956
957
958
959
960
    // light sources
    update_lights();

    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
961
962
963
964
965
966
    if (properties_.renderPicking())
    {
      clear_color = properties_.glState().clear_color();
      properties_.glState().set_clear_color (ACG::Vec4f (0.0, 0.0, 0.0, 1.0));
    }

Jan Möbius's avatar
 
Jan Möbius committed
967
968
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
 
Jan Möbius committed
969
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
970

971
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
972
973
974
975
976
977
978
979
980
981

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
982
983
984

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
985
986
987
988
989
990
991
  }
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
992
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
993
994
{
  updateProjectionMatrix();
Jan Möbius's avatar
 
Jan Möbius committed
995
996
997
998
999
  glstate_->viewport(scenePos().x(),
		     scene()->height () - scenePos().y() - size().height (),
		     size().width (), size().height (),
		     scene()->width (), scene()->height ());
  update();
Jan Möbius's avatar
 
Jan Möbius committed
1000
1001
}

Jan Möbius's avatar
 
Jan Möbius committed
1002
1003
1004
1005
1006
1007
1008
1009
void glViewer::moveEvent (QGraphicsSceneMoveEvent *)
{
  glstate_->viewport(scenePos().x(),
		     scene()->height () - scenePos().y() - size().height (),
		     size().width (), size().height (),
		     scene()->width (), scene()->height ());
  update();
}
Jan Möbius's avatar
 
Jan Möbius committed
1010
1011
1012

//-----------------------------------------------------------------------------

Jan Möbius's avatar
 
Jan Möbius committed
1013
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1014
{
1015
  // Get current matrices
Jan Möbius's avatar
 
Jan Möbius committed
1016
1017
1018
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
  // Add modelview matrix to output
  _view += QString(VIEW_MAGIC) + "\n";
  _view += QString::number(m(0,0)) + " " + QString::number(m(0,1)) + " " + QString::number(m(0,2)) + " " + QString::number(m(0,3)) + "\n";
  _view += QString::number(m(1,0)) + " " + QString::number(m(1,1)) + " " + QString::number(m(1,2)) + " " + QString::number(m(1,3)) + "\n";
  _view += QString::number(m(2,0)) + " " + QString::number(m(2,1)) + " " + QString::number(m(2,2)) + " " + QString::number(m(2,3)) + "\n";
  _view += QString::number(m(3,0)) + " " + QString::number(m(3,1)) + " " + QString::number(m(3,2)) + " " + QString::number(m(3,3)) + "\n";

  // Add projection matrix to output
  _view += QString::number(p(0,0)) + " " + QString::number(p(0,1)) + " " + QString::number(p(0,2)) + " " + QString::number(p(0,3)) + "\n";
  _view += QString::number(p(1,0)) + " " + QString::number(p(1,1)) + " " + QString::number(p(1,2)) + " " + QString::number(p(1,3)) + "\n";
  _view += QString::number(p(2,0)) + " " + QString::number(p(2,1)) + " " + QString::number(p(2,2)) + " " + QString::number(p(2,3)) + "\n";
  _view += QString::number(p(3,0)) + " " + QString::number(p(3,1)) + " " + QString::number(p(3,2)) + " " + QString::number(p(3,3)) + "\n";

  // add gl width/height, current projection Mode and the ortho mode width to output
  _view += QString::number(glWidth()) + " " +  QString::number(glHeight()) + " " + QString::number(projectionMode_) + " " + QString::number(orthoWidth_) + "\n";
Jan Möbius's avatar
 
Jan Möbius committed
1034
1035
1036
1037
1038
1039
}


//----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1040
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1041
1042
1043
1044
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;

1045
1046
1047
  // Remove the magic from the string
  QString temp = _view;
  temp.remove(0,sizeof(VIEW_MAGIC));
Jan Möbius's avatar
 
Jan Möbius committed
1048

1049
1050
  //Split it into its components
  QStringList split = temp.split(QRegExp("[\\n\\s]"),QString::SkipEmptyParts);
Jan Möbius's avatar
 
Jan Möbius committed
1051
1052
1053
1054

  ACG::GLMatrixd m, p;
  int            w, h, pMode;

1055
1056
1057
1058
1059
  // Check if the number of components matches the expected size
  if ( split.size() != 36 ) {
    std::cerr << "Unable to paste view ... wrong parameter count!! is" <<  split.size()  << std::endl;
    return false;
  }
Jan Möbius's avatar
 
Jan Möbius committed
1060

1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
  // Parse the components
  bool ok = true;;

  m(0,0) = split[0].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,1) = split[1].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,2) = split[2].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(0,3) = split[3].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,0) = split[4].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,1) = split[5].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,2) = split[6].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(1,3) = split[7].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,0) = split[8].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,1) = split[9].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,2) = split[10].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(2,3) = split[11].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,0) = split[12].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,1) = split[13].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,2) = split[14].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  m(3,3) = split[15].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,0) = split[16].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,1) = split[17].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,2) = split[18].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(0,3) = split[19].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,0) = split[20].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,1) = split[21].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,2) = split[22].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(1,3) = split[23].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,0) = split[24].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,1) = split[25].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,2) = split[26].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(2,3) = split[27].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,0) = split[28].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,1) = split[29].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,2) = split[30].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  p(3,3) = split[31].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }

  w =  split[32].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  h =  split[33].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  pMode =  split[34].toInt(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }
  orthoWidth_ = split[35].toDouble(&ok); if ( !ok ) { std::cerr << "Error in decoding View!" << std::endl; return false; }

  // Switch to our gl context
Jan Möbius's avatar
 
Jan Möbius committed
1103
1104
  makeCurrent();

1105
  // set projection mode
Jan Möbius's avatar
 
Jan Möbius committed
1106
1107
1108
  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

1109
  // Apply new modelview matrix
Jan Möbius's avatar
 
Jan Möbius committed
1110
1111
1112
  glstate_->set_modelview(m);


1113
1114
1115
1116
1117
1118
1119
1120
1121
  std::cerr << "Todo : Add Checkbox if size should also be pasted" << std::endl;

//   if (w>0 && h>0 &&
//       action_["PasteDropSize"]->isChecked() )
//   {
//     glstate_->set_projection(p);
//     glView_->setFixedSize(w,h);
//     updateGeometry();
//   }
Jan Möbius's avatar
 
Jan Möbius committed
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131

  updateGL();

  return true;
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1132
void glViewer::actionCopyView()
1133
1134
1135
1136
1137
1138
1139
1140
1141
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1142
void glViewer::actionPasteView()
1143
1144
1145
1146
1147
1148
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1149
1150
1151
//-----------------------------------------------------------------------------

void
Jan Möbius's avatar
 
Jan Möbius committed
1152
glViewer::createWidgets(QStatusBar* _sb)
Jan Möbius's avatar
 
Jan Möbius committed
1153
1154
1155
1156
{
  setStatusBar(_sb);

  // Construct GL context & widget
1157

Jan Möbius's avatar
 
Jan Möbius committed
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
  wheelZ_=new ACG::QtWidgets::QtWheel( 0,"wheel-z",ACG::QtWidgets::QtWheel::Vertical);
  wheelZ_->setMinimumSize(wheelZ_->sizeHint());
  wheelZ_->setMaximumSize(wheelZ_->sizeHint());
  connect(wheelZ_,SIGNAL(angleChangedBy(double)),
	  this,SLOT(slotWheelZ(double)));
  wheelZ_->setToolTip( "Translate along <b>z-axis</b>.");
  wheelZ_->setWhatsThis( "Translate along <b>z-axis</b>.");

  wheelY_=new ACG::QtWidgets::QtWheel( 0,"wheel-y",ACG::QtWidgets::QtWheel::Horizontal);
  wheelY_->setMinimumSize(wheelY_->sizeHint());
  wheelY_->setMaximumSize(wheelY_->sizeHint());
  connect(wheelY_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelY(double)));
  wheelY_->setToolTip("Rotate around <b>y-axis</b>.");
  wheelY_->setWhatsThis( "Rotate around <b>y-axis</b>.");

  wheelX_=new ACG::QtWidgets::QtWheel( 0,"wheel-x",ACG::QtWidgets::QtWheel::Vertical);
  wheelX_->setMinimumSize(wheelX_->sizeHint());
  wheelX_->setMaximumSize(wheelX_->sizeHint());
  connect(wheelX_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelX(double)));
  wheelX_->setToolTip("Rotate around <b>x-axis</b>.");
  wheelX_->setWhatsThis( "Rotate around <b>x-axis</b>.");

1182
1183
1184
1185
1186
  // Hide or show wheels (depending on ini option)
  if(!OpenFlipper::Options::showWheelsAtStartup()) {

	  slotHideWheels();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199

  QGraphicsWidget *wheelX = glScene_->addWidget (wheelX_);
  QGraphicsWidget *wheelY = glScene_->addWidget (wheelY_);
  QGraphicsWidget *wheelZ = glScene_->addWidget (wheelZ_);

  wheelX_->setWindowOpacity (0.5);
  wheelY_->setWindowOpacity (0.5);
  wheelZ_->setWindowOpacity (0.5);

  wheelX->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
  wheelY->setCacheMode(QGraphicsItem::DeviceCoordinateCache);
  wheelZ->setCacheMode(QGraphicsItem::DeviceCoordinateCache);

Jan Möbius's avatar
Jan Möbius committed
1200
1201
1202
1203
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1204

Jan Möbius's avatar
Jan Möbius committed
1205
1206
1207
1208
  connect(wheelX_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));
  connect(wheelY_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));
  connect(wheelZ_,SIGNAL(hideWheel()),this,SLOT(slotHideWheels()));

Jan Möbius's avatar
 
Jan Möbius committed
1209
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1210
1211
1212
1213
1214
}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1215
void glViewer::translate(const ACG::Vec3d& _trans)
Jan Möbius's avatar
 
Jan Möbius committed
1216
1217
1218
1219
1220
1221
1222
1223
1224
{
  makeCurrent();
  glstate_->translate(_trans[0], _trans[1], _trans[2], ACG::MULT_FROM_LEFT);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1225
void glViewer::initModelviewMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
1226
1227
1228
1229
1230
1231
1232
1233
1234
{
  makeCurrent();
  glstate_->reset_modelview();
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1235
void glViewer::rotate(const ACG::Vec3d&  _axis,
Jan Möbius's avatar
 
Jan Möbius committed
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
                          double        _angle,
                          const ACG::Vec3d&  _center)
{
  makeCurrent();
  ACG::Vec3d t = glstate_->modelview().transform_point(_center);
  glstate_->translate(-t[0], -t[1], -t[2], ACG::MULT_FROM_LEFT);
  glstate_->rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  glstate_->translate( t[0],  t[1],  t[2], ACG::MULT_FROM_LEFT);
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1250
unsigned int glViewer::glWidth() const {
Jan Möbius's avatar
 
Jan Möbius committed
1251
  return size().width();
Jan Möbius's avatar
 
Jan Möbius committed
1252
}
Jan Möbius's avatar
 
Jan Möbius committed
1253
unsigned int glViewer::glHeight() const {
Jan Möbius's avatar
 
Jan Möbius committed
1254
  return size().height();
Jan Möbius's avatar
 
Jan Möbius committed
1255
}
Jan Möbius's avatar
 
Jan Möbius committed
1256
QSize glViewer::glSize() const {
Jan Möbius's avatar
 
Jan Möbius committed
1257
  return QSize(size().width(),size().height());
Jan Möbius's avatar
 
Jan Möbius committed
1258
}
Jan Möbius's avatar
 
Jan Möbius committed
1259
QPoint glViewer::glMapFromGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1260
1261
1262
  QPoint p (scene()->views().front()->mapFromGlobal(_pos));
  QPointF f (mapFromScene(QPointF(p.x(), p.y ())));
  return QPoint (f.x(), f.y());
Jan Möbius's avatar
 
Jan Möbius committed
1263
1264
}

Jan Möbius's avatar
 
Jan Möbius committed
1265
QPoint glViewer::glMapToGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1266
1267
1268
  QPointF f (mapToScene(QPointF(_pos.x(), _pos.y ())));
  QPoint p (f.x(), f.y());
  return scene()->views().front()->mapToGlobal(p);
Jan Möbius's avatar
 
Jan Möbius committed
1269
1270
1271
1272
1273
}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1274
void glViewer::slotWheelX(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1275
1276
1277
1278
1279
1280
{
  rotate(ACG::Vec3d(1,0,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1281
void glViewer::slotWheelY(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1282
1283
1284
1285
1286
1287
{
  rotate(ACG::Vec3d(0,1,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1288
void glViewer::slotWheelZ(double _dist)
Jan Möbius's avatar
 
Jan Möbius committed
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
{
  double dz=_dist*0.5/M_PI*scene_radius_*2.0;
  translate(ACG::Vec3d(0,0,dz));
  updateGL();

}

//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1299
void glViewer::grabGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1300
1301
1302
{
  glareaGrabbed_ = true;

Jan Möbius's avatar
 
Jan Möbius committed
1303
1304
1305
  setCursor(Qt::BlankCursor);
  grabMouse();
  grabKeyboard();
Jan Möbius's avatar
 
Jan Möbius committed
1306
1307
}

Jan Möbius's avatar
 
Jan Möbius committed
1308
void glViewer::releaseGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1309
1310
1311
{
  glareaGrabbed_ = false;

Jan Möbius's avatar
 
Jan Möbius committed
1312
1313
1314
  ungrabMouse();
  ungrabKeyboard();
  setCursor(Qt::ArrowCursor);
Jan Möbius's avatar
 
Jan Möbius committed
1315
1316
1317
1318
1319
1320
}


//-----------------------------------------------------------------------------


Jan Möbius's avatar
 
Jan Möbius committed
1321
void glViewer::contextMenuEvent(QGraphicsSceneContextMenuEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1322
{
Jan Möbius's avatar
 
Jan Möbius committed
1323
1324
  QPoint p (_e->pos().x(), _e->pos().y());
  emit signalCustomContextMenuRequested (p);
Jan Möbius's avatar
 
Jan Möbius committed
1325
1326
1327
1328
1329
}


//-----------------------------------------------------------------------------

1330
void glViewer::mousePressEvent(QGraphicsSceneMouseEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1331
{
1332
1333
1334
1335
1336
1337
1338
1339
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonPress ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  _e->accept ();

  PluginFunctions::setActiveExaminer (id_);
  glScene_->update ();

Jan Möbius's avatar
 
Jan Möbius committed
1340
  // right button pressed => popup menu (ignore here)
1341
  if (_e->button() != Qt::RightButton )
Jan Möbius's avatar
 
Jan Möbius committed
1342
  {
1343
    switch (PluginFunctions::actionMode())
Jan Möbius's avatar
 
Jan Möbius committed
1344
    {
Jan Möbius's avatar
 
Jan Möbius committed
1345
      case Viewer::ExamineMode:
1346
1347
        if ((_e->modifiers() & Qt::ControlModifier)) // drag&drop
          emit startDragEvent( &me );
Jan Möbius's avatar
 
Jan Möbius committed
1348
        else
1349
          viewMouseEvent(&me); // examine
Jan Möbius's avatar
 
Jan Möbius committed
1350
1351
        break;

Jan Möbius's avatar
 
Jan Möbius committed
1352
      case Viewer::LightMode:
1353
        lightMouseEvent(&me);
1354
        break;
Jan Möbius's avatar
 
Jan Möbius committed
1355

Jan Möbius's avatar
 
Jan Möbius committed
1356
      case Viewer::PickingMode: // give event to application
1357
1358
        emit(signalMouseEvent(&me, PluginFunctions::pickMode() ));
        emit(signalMouseEvent(&me));
Jan Möbius's avatar
 
Jan Möbius committed
1359
1360
        break;

Jan Möbius's avatar
 
Jan Möbius committed
1361
      case Viewer::QuestionMode: // give event to application
1362
        emit(signalMouseEventIdentify(&me));
Jan Möbius's avatar
 
Jan Möbius committed
1363
1364
1365
1366
1367
1368
1369
1370
1371
        break;
    }
  }
}


//-----------------------------------------------------------------------------


1372
void glViewer::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1373
{
1374
1375
1376
1377
1378
1379
1380
1381
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonDblClick ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  _e->accept ();

  PluginFunctions::setActiveExaminer (id_);
  glScene_->update ();

1382
  switch (PluginFunctions::actionMode())
Jan Möbius's avatar
 
Jan Möbius committed
1383
  {
Jan Möbius's avatar
 
Jan Möbius committed
1384
    case Viewer::ExamineMode:
1385
      viewMouseEvent(&me);
Jan Möbius's avatar
 
Jan Möbius committed
1386
1387
      break;

Jan Möbius's avatar
 
Jan Möbius committed
1388
    case Viewer::LightMode:
1389
      lightMouseEvent(&me);
Jan Möbius's avatar
 
Jan Möbius committed
1390
1391
      break;

Jan Möbius's avatar
 
Jan Möbius committed
1392
    case Viewer::PickingMode: // give event to application
1393
1394
      emit(signalMouseEvent(&me, PluginFunctions::pickMode() ));
      emit(signalMouseEvent(&me));