QtBaseViewer.cc 66 KB
Newer Older
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
/*===========================================================================*\
 *                                                                           *
 *                              OpenFlipper                                  *
 *      Copyright (C) 2001-2009 by Computer Graphics Group, RWTH Aachen      *
 *                           www.openflipper.org                             *
 *                                                                           *
 *---------------------------------------------------------------------------*
 *  This file is part of OpenFlipper.                                        *
 *                                                                           *
 *  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 with the              *
 *  following exceptions:                                                    *
 *                                                                           *
 *  If other files instantiate templates or use macros                       *
 *  or inline functions from this file, or you compile this file and         *
 *  link it with other files to produce an executable, this file does        *
 *  not by itself cause the resulting executable to be covered by the        *
 *  GNU Lesser General Public License. This exception does not however       *
 *  invalidate any other reasons why the executable file might be            *
 *  covered by the GNU Lesser General Public License.                        *
 *                                                                           *
 *  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 LesserGeneral Public          *
 *  License along with OpenFlipper. If not,                                  *
 *  see <http://www.gnu.org/licenses/>.                                      *
 *                                                                           *
\*===========================================================================*/

/*===========================================================================*\
 *                                                                           *
 *   $Revision$                                                         *
 *   $Author$                                                      *
 *   $Date$                   *
 *                                                                           *
\*===========================================================================*/
Jan Möbius's avatar
 
Jan Möbius committed
42
43
44
45
46
47




//=============================================================================
//
Jan Möbius's avatar
   
Jan Möbius committed
48
//  CLASS glViewer - IMPLEMENTATION
Jan Möbius's avatar
 
Jan Möbius committed
49
50
51
52
53
54
55
//
//=============================================================================


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

#include "QtBaseViewer.hh"
Jan Möbius's avatar
Jan Möbius committed
56
#include "QtGLViewerLayout.hh"
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
57
#include "CursorPainter.hh"
Jan Möbius's avatar
 
Jan Möbius committed
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
#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 <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>

98
99
#include <QGraphicsView>
#include <QGraphicsScene>
Jan Möbius's avatar
 
Jan Möbius committed
100
101
102
#include <QGraphicsWidget>
#include <QGraphicsGridLayout>
#include <QGraphicsProxyWidget>
Jan Möbius's avatar
   
Jan Möbius committed
103
104
#include <QPainter>
#include <QPaintEngine>
Jan Möbius's avatar
 
Jan Möbius committed
105
106
107
108
109
110
111
112
113

#ifdef max
#  undef max
#endif

#ifdef min
#  undef min
#endif

114
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
Jan Möbius's avatar
Jan Möbius committed
115
#include <OpenFlipper/common/ViewObjectMarker.hh>
Jan Möbius's avatar
 
Jan Möbius committed
116

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
117
118
#include <OpenFlipper/common/GlobalOptions.hh>

119
120
#include <QGLFramebufferObject>

Jan Möbius's avatar
 
Jan Möbius committed
121
122
123
124
125
126
127
128
129
130
131
132
//== NAMESPACES ===============================================================



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

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

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


133
glViewer::glViewer( QGraphicsScene* _scene,
134
                    QGLWidget* _glWidget,
135
                    Viewer::ViewerProperties& _properties,
136
                    QGraphicsWidget* _parent) :
Jan Möbius's avatar
   
Jan Möbius committed
137
  QGraphicsWidget(_parent),
Jan Möbius's avatar
 
Jan Möbius committed
138
139
140
  glareaGrabbed_(false),
  projectionUpdateLocked_(false),
  blending_(true),
Jan Möbius's avatar
   
Jan Möbius committed
141
142
  glScene_(_scene),
  glWidget_(_glWidget),
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
143
144
  cursorPainter_(0),
  cursorPositionValid_(false),
145
146
  pProgram_(0),
  philipsStereoInitialized_(false),
Jan Möbius's avatar
Jan Möbius committed
147
148
149
  pickCache_(0),
  updatePickCache_(true),
  pickCacheSupported_(true),
150
  clickEvent_(QEvent::MouseButtonPress, QPoint (), Qt::NoButton, Qt::NoButton, Qt::NoModifier),
Dirk Wilden's avatar
Dirk Wilden committed
151
  properties_(_properties),
152
153
  glstate_(0),
  initialized_(false)
Jan Möbius's avatar
 
Jan Möbius committed
154
155
156
{

  // widget stuff
157
  createWidgets();
Jan Möbius's avatar
 
Jan Möbius committed
158
159
160

  // bind GL context to GL state class
  glstate_ = new ACG::GLState();
161
162
  properties_.setglState( glstate_ );

Jan Möbius's avatar
 
Jan Möbius committed
163
164
165
  // state
  orthoWidth_       = 2.0;
  isRotating_       = false;
Mike Kremer's avatar
Mike Kremer committed
166
  lookAround_       = false;
Jan Möbius's avatar
 
Jan Möbius committed
167
168
169
170
171
172
  near_             = 0.1;
  far_              = 100.0;
  fovy_             = 45.0;

  sceneGraphRoot_   = 0;

173
  normalsMode_      = NORMALIZE_NORMALS;
Jan Möbius's avatar
 
Jan Möbius committed
174
  projectionMode_   = PERSPECTIVE_PROJECTION;
Jan Möbius's avatar
Jan Möbius committed
175
  navigationMode_   = NORMAL_NAVIGATION;
176

Jan Möbius's avatar
 
Jan Möbius committed
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196

  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 ();

197
198
199
200
201
202
203
  // timer for animation
  timer_ = new QTimer( this );
  connect( timer_, SIGNAL(timeout()), this, SLOT( slotAnimation()) );

  allowRotation_ = true;


Jan Möbius's avatar
   
Jan Möbius committed
204
205
206
  connect( &properties_,SIGNAL(updated()), this, SLOT( slotPropertiesUpdated() ) );


Dirk Wilden's avatar
Dirk Wilden committed
207
208
209
  //check for updated properties once
  slotPropertiesUpdated();

Jan Möbius's avatar
   
Jan Möbius committed
210
  setAcceptDrops(true);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
211

212
  setHome();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
213
214
215
216
217
218
219
220

  // initialize custom anaglyph stereo
  agTexWidth_ = 0;
  agTexHeight_ = 0;
  agTexture_[0] = 0;
  agTexture_[1] = 0;
  agProgram_ = 0;
  customAnaglyphSupported_ = false;
221
222
223

  clickTimer_.setSingleShot (true);
  connect (&clickTimer_, SIGNAL(timeout ()), this, SLOT(slotClickTimeout ()));
Jan Möbius's avatar
 
Jan Möbius committed
224
225
226
227
228
229
}


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


Jan Möbius's avatar
   
Jan Möbius committed
230
glViewer::~glViewer()
Jan Möbius's avatar
 
Jan Möbius committed
231
{
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
232
  finiCustomAnaglyphStereo ();
Jan Möbius's avatar
 
Jan Möbius committed
233
234
235
236
237
238
239
240
  delete glstate_;
}


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


QSize
Jan Möbius's avatar
   
Jan Möbius committed
241
glViewer::sizeHint() const
Jan Möbius's avatar
 
Jan Möbius committed
242
243
244
245
246
247
248
{
  return QSize( 600, 600 );
}

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


Jan Möbius's avatar
   
Jan Möbius committed
249
void glViewer::makeCurrent() {
Jan Möbius's avatar
 
Jan Möbius committed
250
251
252
  glWidget_->makeCurrent();
}

Jan Möbius's avatar
   
Jan Möbius committed
253
void glViewer::swapBuffers() {
Jan Möbius's avatar
 
Jan Möbius committed
254
255
256
257
258
259
260
  glWidget_->swapBuffers();
}


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


261
void glViewer::sceneGraph(ACG::SceneGraph::BaseNode* _root, const bool _resetTrackBall)
Jan Möbius's avatar
 
Jan Möbius committed
262
263
264
{
  sceneGraphRoot_ = _root;

Jan Möbius's avatar
Jan Möbius committed
265
  if (sceneGraphRoot_ )
Jan Möbius's avatar
 
Jan Möbius committed
266
  {
Jan Möbius's avatar
Jan Möbius committed
267
268
269
270
271
272
273
274
    
    // set max number of render pass
    // Single pass action, this info is static during multipass
    ACG::SceneGraph::MultiPassInfoAction info_act;
    ACG::SceneGraph::traverse(sceneGraphRoot_, info_act);
    
    glstate_->set_max_render_passes(info_act.getMaxPasses());
    
Jan Möbius's avatar
 
Jan Möbius committed
275
    // get scene size
Jan Möbius's avatar
Jan Möbius committed
276
    // Single pass action, as the bounding box is not influenced by multipass traversal
Jan Möbius's avatar
 
Jan Möbius committed
277
278
279
280
281
282
283
284
    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] ) ||
285
         ( bbmin[2] > bbmax[2] )   )
286
      setScenePos( ACG::Vec3d( 0.0,0.0,0.0 ) , 1.0, _resetTrackBall );
287
288
    else
      setScenePos( ( bbmin + bbmax )        * 0.5,
289
                   ( bbmax - bbmin ).norm() * 0.5,
290
                   _resetTrackBall);
Jan Möbius's avatar
 
Jan Möbius committed
291
292
293
294
295
296
297
298
299
300
301
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


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


Jan Möbius's avatar
   
Jan Möbius committed
302
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
303
304
305
306
307
308
309
{
  trackMouse_ = _track;
}


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

Jan Möbius's avatar
   
Jan Möbius committed
310
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
311
312
313
314
315
316
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
317
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
318
319
320
321
322
323
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
324
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
325
326
327
328
329
330
331
332
333
334
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
335
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
336
337
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
338
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
339
  else
340
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
341
342

  updateProjectionMatrix();
343

344
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
345
346
}

347
348
349
void glViewer::toggleNavigationMode()
{
  if (navigationMode_ == NORMAL_NAVIGATION)
Mike Kremer's avatar
Mike Kremer committed
350
    navigationMode(FIRSTPERSON_NAVIGATION);
351
352
353
354
355
356
357
358
359
360
361
362
363
  else
    navigationMode(NORMAL_NAVIGATION);
}


void glViewer::navigationMode(NavigationMode _n)
{
  if ((navigationMode_ = _n) == NORMAL_NAVIGATION)
    emit navigationModeChanged( true );
  else
    emit navigationModeChanged( false );
}

Jan Möbius's avatar
 
Jan Möbius committed
364

Jan Möbius's avatar
   
Jan Möbius committed
365
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
366
367
368
369
370
371
372
373
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

Jan Möbius's avatar
Jan Möbius committed
374
375
  // In scereo mode we have to use a perspective matrix
  if (stereo_ || projectionMode_ == PERSPECTIVE_PROJECTION)
Jan Möbius's avatar
 
Jan Möbius committed
376
  {
377
378
379
380
381
382
383
384
    double aspect;

    if (isVisible() && glWidth() && glHeight())
      aspect = (double) glWidth() / (double) glHeight();
    else
      aspect = 1.0;

    glstate_->perspective(fovy_, (GLdouble) aspect,
Jan Möbius's avatar
Jan Möbius committed
385
386
387
388
389
                          near_, far_);
  }
  else
  {
    double aspect;
Jan Möbius's avatar
Jan Möbius committed
390

391
    if (isVisible() && glWidth() && glHeight())
Jan Möbius's avatar
Jan Möbius committed
392
393
      aspect = (double) glWidth() / (double) glHeight();
    else
394
      aspect = 1.0;
Jan Möbius's avatar
 
Jan Möbius committed
395

Jan Möbius's avatar
Jan Möbius committed
396
397
398
    glstate_->ortho( -orthoWidth_, orthoWidth_,
                     -orthoWidth_/aspect, orthoWidth_/aspect,
                     near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
399
  }
400

Jan Möbius's avatar
 
Jan Möbius committed
401
402
403
404
405
406
}


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


407
void glViewer::setScenePos(const ACG::Vec3d& _center, double _radius, const bool _resetTrackBall)
Jan Möbius's avatar
 
Jan Möbius committed
408
{
409
410
  if(_resetTrackBall) {
    trackball_center_ = _center;
411
412
  }

413
414
  scene_center_ = _center;

415
416
417
418
419
420
  scene_radius_ = trackball_radius_ = _radius;

  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);

  // Set far plane
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
421

422
423
  // Set near plane
  near_   = std::max(0.0001f * scene_radius_,  -(c[2] + scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
424

425

426
427
428
429
  updateProjectionMatrix();
  updateGL();

  emit viewChanged();
430
431
}

432
433
434
435
//-----------------------------------------------------------------------------

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

436
437
438
439
440
441
	scene_center_ = _center;
}

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

void glViewer::setTrackBallCenter( const ACG::Vec3d& _center ) {
442

443
  trackball_center_ = _center;
444
}
445
446
447
448

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


Jan Möbius's avatar
   
Jan Möbius committed
449
void glViewer::viewingDirection( const ACG::Vec3d& _dir, const ACG::Vec3d& _up )
Jan Möbius's avatar
 
Jan Möbius committed
450
451
452
453
454
455
{
  // 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);
456

457
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
458
459
}

460
461
462
463
464
465
466
467
468
469
470
471
//-----------------------------------------------------------------------------

void glViewer::lookAt(const ACG::Vec3d& _eye, const ACG::Vec3d& _center, const ACG::Vec3d& _up) {
    
    glstate_->reset_modelview();
    glstate_->lookAt(_eye, _center, _up);
    
    scene_center_ = _center;
    scene_radius_ = (scene_center_ - _eye).norm();
    
    emit viewChanged();
}
Jan Möbius's avatar
 
Jan Möbius committed
472
473
474
475

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


Jan Möbius's avatar
   
Jan Möbius committed
476
void glViewer::normalsMode(NormalsMode _mode)
Jan Möbius's avatar
 
Jan Möbius committed
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
{
  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
499
glViewer::copyToImage( QImage& _image,
Jan Möbius's avatar
Jan Möbius committed
500
501
		       unsigned int _l, unsigned int _t,
		       unsigned int _w, unsigned int _h,
Jan Möbius's avatar
 
Jan Möbius committed
502
503
			   GLenum /* _buffer */ )
{
504
505
506
507

//    qApp->processEvents();
//    makeCurrent();

Jan Möbius's avatar
Jan Möbius committed
508
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
509
510
511
512
513
514
}


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


Jan Möbius's avatar
   
Jan Möbius committed
515
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
516
{
Jan Möbius's avatar
   
Jan Möbius committed
517
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
518
  {
Jan Möbius's avatar
Jan Möbius committed
519
    updatePickCache_ = true;
Jan Möbius's avatar
   
Jan Möbius committed
520
    update();
521
522

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
523
524
525
526
527
528
529
530
  }
}



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


Jan Möbius's avatar
   
Jan Möbius committed
531
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
532
533
534
535
536
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
   
Jan Möbius committed
537
538
539
540
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
541
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
   
Jan Möbius committed
542
543

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
544
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
   
Jan Möbius committed
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561

  // 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
562
563
564
565
566
567
568
569
570
571
572
573
  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
574
575


Jan Möbius's avatar
 
Jan Möbius committed
576
577
578
579
580
581
}


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


Jan Möbius's avatar
   
Jan Möbius committed
582
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
583
584
585
{
  if (sceneGraphRoot_)
  {
586
    if (! properties_.renderPicking() ) {
587

Jan Möbius's avatar
Jan Möbius committed
588
      ViewObjectMarker *oM = properties_.objectMarker();
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
      GLuint refBits = 0;
      QSet<GLuint> references;

      if (oM)
      {
        glClear (GL_STENCIL_BUFFER_BIT);
        glEnable (GL_STENCIL_TEST);
        glStencilOp (GL_KEEP, GL_KEEP, GL_ZERO);
        glStencilFunc (GL_ALWAYS, 0, ~0);

        for (PluginFunctions::ObjectIterator o_it(PluginFunctions::ALL_OBJECTS, DATA_ALL) ;
                                             o_it != PluginFunctions::objectsEnd(); ++o_it)
        {
          bool ok;
          GLuint ref;

          ok = oM->stencilRefForObject(*o_it, ref);

          if (ok)
          {
            o_it->stencilRefNode ()->setReference (ref);
            o_it->stencilRefNode ()->show ();
            refBits |= ref;
            references << ref;
          }
          else
            o_it->stencilRefNode ()->hide ();
        }
      }

619
      ACG::SceneGraph::DrawAction action( properties_.drawMode(), *glstate_ , false);
620
      ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
621
622
623

      if( blending_ )
      {
624
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), *glstate_, true);
625
        ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
626
      }
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
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

      if (oM)
      {
        if (oM->type() == ViewObjectMarker::PerBit)
        {
          references.clear ();
          for (unsigned int i = 0; i < sizeof (GLuint) * 8; i++)
            if (refBits & (1 << i))
              references << (1 << i);
        }

        glPushAttrib(GL_ALL_ATTRIB_BITS);

        glEnable(GL_BLEND);
        glDisable(GL_DEPTH_TEST);
        glDisable(GL_LIGHTING);
        glDisable(GL_DITHER);

        int vp_l, vp_b, vp_w, vp_h;
        glstate_->get_viewport (vp_l, vp_b, vp_w, vp_h);

        glMatrixMode(GL_PROJECTION);
        glPushMatrix ();
        glLoadIdentity();
        glOrtho(0, vp_w, vp_h, 0, 0, 1.0);
        glMatrixMode(GL_MODELVIEW);
        glPushMatrix ();
        glLoadIdentity();

        glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);

        foreach (unsigned int ref, references)
        {
          bool ok;
          GLenum sfactor;
          GLenum dfactor;
          ACG::Vec4f color;
          unsigned int mask = ~0;

          if (oM->type() == ViewObjectMarker::PerBit)
          {
            ok = oM->blendForStencilRefBit (ref, sfactor, dfactor, color);
            mask = ref;
          }
          else
            ok = oM->blendForStencilRefNumber (ref, sfactor, dfactor, color);

          if (!ok)
            continue;

          glStencilFunc (GL_EQUAL, ref, mask);

          glBlendFunc (sfactor, dfactor);
          glColor4f (color[0], color [1], color [2], color[3]);

          glBegin (GL_QUADS);
          glVertex2i(0, 0);
          glVertex2i(0, vp_h);
          glVertex2i(vp_w, vp_h);
          glVertex2i(vp_w, 0);
          glEnd ();

        }

        glMatrixMode(GL_PROJECTION);
        glPopMatrix ();
        glMatrixMode(GL_MODELVIEW);
        glPopMatrix ();

        glPopAttrib ();
        glDisable (GL_STENCIL_TEST);
      }
Jan Möbius's avatar
 
Jan Möbius committed
699
700
701
702
703
704
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
705
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
706
707
708
709
710
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
711
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
712
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
713
      ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action,*glstate_);
Jan Möbius's avatar
 
Jan Möbius committed
714
715

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
716
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
717
718
    }
  }
Jan Möbius's avatar
Jan Möbius committed
719

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
720
721
722
723
724
725
726
727
728
729
730
731
  if (cursorPainter_ && cursorPainter_->enabled () && cursorPositionValid_)
  {
    glstate_->push_modelview_matrix ();
    // reset view transformation
    glstate_->reset_modelview ();
    // translate cursor position to 0,0
    glstate_->translate (cursorPoint3D_[0], cursorPoint3D_[1], cursorPoint3D_[2]);
    // paint cursor
    cursorPainter_->paintCursor (glstate_);
    glstate_->pop_modelview_matrix ();
  }

Jan Möbius's avatar
Jan Möbius committed
732
  draw_lights();
Jan Möbius's avatar
 
Jan Möbius committed
733
734
735
736
737
738
739
}


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


void
Jan Möbius's avatar
   
Jan Möbius committed
740
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
741
{
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
742
743
744
745
746
747
748
749
750
751
752
753
  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;
754
755
756
  } else if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::Philips )
  {
    drawScenePhilipsStereo ();
757

758
    return;
759

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
760
  }
761
762


Jan Möbius's avatar
 
Jan Möbius committed
763

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
764
765
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
766
767
768
769
770


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


Jan Möbius's avatar
   
Jan Möbius committed
771
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
772
773
774
775
776
777
778
779
780
{
  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
781
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
782
783
784
785
786
787
788
789
{
  makeCurrent();
  glstate_->set_modelview(home_modelview_, home_inverse_modelview_);
  orthoWidth_ = homeOrthoWidth_;
  trackball_center_ = home_center_;
  trackball_radius_ = home_radius_;
  updateProjectionMatrix();
  updateGL();
790

791
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
792
793
794
795
796
797
798

}


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


Jan Möbius's avatar
   
Jan Möbius committed
799
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
800
{
801
	makeCurrent();
Jan Möbius's avatar
 
Jan Möbius committed
802

803
804
	// 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
805

806
807
808
809
810
811
812
813
814
815
816
817
818
819
	// 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();
820
821

    emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
822
823
824
825
826
827
828

}


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


Jan Möbius's avatar
   
Jan Möbius committed
829
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
830
831
832
833
834
835
836
837
838
839
{
  makeCurrent();

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

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
840
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
      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();
861

862
      emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
863
864
    }

Jan Möbius's avatar
Jan Möbius committed
865

Jan Möbius's avatar
 
Jan Möbius committed
866
867
868
869
  }
}


Jan Möbius's avatar
   
Jan Möbius committed
870
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
			 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
917
918
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
919
    }
920
    updatePickCache_ = true;
Jan Möbius's avatar
 
Jan Möbius committed
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
  }


  // 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
944
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
945
946
947
948
949
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
950

951
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
952
953
954
955
956
957
}


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


Jan Möbius's avatar
   
Jan Möbius committed
958
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
959
960
961
{

  // lock update
962
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
963
964
965
966
967
968
969
970
971
972
973
974
975
976

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

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


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

977
  // Update all settings which would require a redraw
978
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007

  // 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)
1008
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1009
1010
1011
1012
1013

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
1014
1015
1016
1017
1018
1019
1020
1021

  initialized_ = true;

  if (sceneGraphRoot_)
  {
    sceneGraph(sceneGraphRoot_, true);
    viewAll ();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1022
1023
1024
1025
1026
}


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

Jan Möbius's avatar
Jan Möbius committed
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
/**
 *
 */
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
1063

Jan Möbius's avatar
   
Jan Möbius committed
1064
void glViewer::update_lights()
Jan Möbius's avatar
 
Jan Möbius committed
1065
{
1066
1067
1068
1069
  // PluginFunction can disable the cores light handling and use its own one
  if (!PluginFunctions::examinerLightHandling() ) 
    return;
  
Jan Möbius's avatar
 
Jan Möbius committed
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
  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
1101
void glViewer::rotate_lights(ACG::Vec3d& _axis, double _angle)
Jan Möbius's avatar
 
Jan Möbius committed
1102
1103
1104
1105
1106
1107
1108
1109
1110
{
  light_matrix_.rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  update_lights();
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1111
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
1112
{
1113
1114
  if (!initialized_)
    initializeGL ();
Jan Möbius's avatar
 
Jan Möbius committed
1115

1116
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
1117
  {
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1118
1119
    ACG::Vec4f clear_color;

1120
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137

    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_      );

1138
    applyProperties();
1139

Jan Möbius's avatar
 
Jan Möbius committed
1140
1141
1142
1143
1144
1145
1146
    // light sources
    update_lights();

    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1147
1148
1149
1150
1151
1152
    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
1153
1154
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
   
Jan Möbius committed
1155
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
1156

1157
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1168
1169
1170

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
1171
1172
1173
1174
1175
1176
1177
  }
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1178
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
1179
1180
{
  updateProjectionMatrix();
Jan Möbius's avatar
   
Jan Möbius committed
1181
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1182
1183
1184
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
   
Jan Möbius committed
1185
  update();
1186

1187
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1188
1189
}

Jan Möbius's avatar
   
Jan Möbius committed
1190
1191
1192
void glViewer::moveEvent (QGraphicsSceneMoveEvent *)
{
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1193
1194
1195
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
   
Jan Möbius committed
1196
  update();
1197

1198
  emit viewChanged();
Jan Möbius's avatar
   
Jan Möbius committed
1199
}
Jan Möbius's avatar
 
Jan Möbius committed
1200
1201
1202

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

Jan Möbius's avatar
   
Jan Möbius committed
1203
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1204
{
1205
  // Get current matrices
Jan Möbius's avatar
 
Jan Möbius committed
1206
1207
1208
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
  // 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
1224
1225
1226
1227
1228
1229
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1230
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1231
1232
1233
1234
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;

1235
1236
1237
  // Remove the magic from the string
  QString temp = _view;
  temp.remove(0,sizeof(VIEW_MAGIC));
Jan Möbius's avatar
 
Jan Möbius committed
1238

1239
1240
  //Split it into its components
  QStringList split = temp.split(QRegExp("[\\n\\s]"),QString::SkipEmptyParts);
Jan Möbius's avatar
 
Jan Möbius committed
1241
1242
1243
1244

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

1245
1246
1247
1248
1249
  // 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
1250

1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
  // 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
1293
1294
  makeCurrent();

1295
  // set projection mode
Jan Möbius's avatar
 
Jan Möbius committed
1296
1297
1298
  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

1299
  // Apply new modelview matrix
Jan Möbius's avatar
 
Jan Möbius committed
1300
1301
1302
  glstate_->set_modelview(m);


1303
1304
1305
1306
1307
1308
1309
1310
1311
  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
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321

  updateGL();

  return true;
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1322
void glViewer::actionCopyView()
1323
1324
1325
1326
1327
1328
1329
1330
1331
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1332
void glViewer::actionPasteView()
1333
1334
1335
1336
1337
1338
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1339
1340
1341
//-----------------------------------------------------------------------------

void
1342
glViewer::createWidgets()
Jan Möbius's avatar
 
Jan Möbius committed
1343
1344
{
  // Construct GL context & widget
1345

Jan Möbius's avatar
 
Jan Möbius committed
1346
1347
1348
1349
1350
  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)));
1351
1352
  wheelZ_->setToolTip( tr("Translate along <b>z-axis</b>."));
  wheelZ_->setWhatsThis( tr("Translate along <b>z-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1353
1354
1355
1356
1357
1358

  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)));
1359
1360
  wheelY_->setToolTip(tr("Rotate around <b>y-axis</b>."));
  wheelY_->setWhatsThis( tr("Rotate around <b>y-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1361

1362
  wheelX_=new ACG::QtWidgets::QtWheel( 0,"wheel-x" ,ACG::QtWidgets::QtWheel::Vertical);
Jan Möbius's avatar
 
Jan Möbius committed
1363
1364
1365
1366
  wheelX_->setMinimumSize(wheelX_->sizeHint());
  wheelX_->setMaximumSize(wheelX_->sizeHint());
  connect(wheelX_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelX(double)));
1367
1368
  wheelX_->setToolTip(tr("Rotate around <b>x-axis</b>."));
  wheelX_->setWhatsThis( tr("Rotate around <b>x-axis</b>."));
Jan Möbius's avatar
 
Jan Möbius committed
1369

1370
  // Hide or show wheels (depending on ini option)
Jan Möbius's avatar
Jan Möbius committed
1371
1372
  if( ! OpenFlipperSettings().value("Core/Gui/glViewer/showControlWheels").toBool() ) 
    slotHideWheels();
Jan Möbius's avatar
 
Jan Möbius committed
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385

  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
1386
1387
1388
1389
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1390

Jan Möbius's avatar
Jan Möbius committed
1391
1392
1393
1394
  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
1395
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1396
1397
1398
1399
1400
}

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


Jan Möbius's avatar
   
Jan Möbius committed
1401
void glViewer::translate(const ACG::Vec3d& _trans)
Jan Möbius's avatar
 
Jan Möbius committed
1402
1403
1404
{
  makeCurrent();
  glstate_->translate(_trans[0], _trans[1], _trans[2], ACG::MULT_FROM_LEFT);
1405

1406
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1407
1408
1409
1410
1411
1412
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1413
void glViewer::initModelviewMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
1414
1415
1416
1417
1418
1419
1420
1421
1422
{
  makeCurrent();
  glstate_->reset_modelview();
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1423
void glViewer::rotate(const ACG::Vec3d&  _axis,
Jan Möbius's avatar
 
Jan Möbius committed
1424
1425
1426
1427
1428
1429
1430
1431
                          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);
1432

1433
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1434
1435
1436
1437
1438
1439
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1440
unsigned int glViewer::glWidth() const {
Jan Möbius's avatar
   
Jan Möbius committed
1441
  return size().width();
Jan Möbius's avatar
 
Jan Möbius committed
1442
}
Jan Möbius's avatar
   
Jan Möbius committed
1443
unsigned int glViewer::glHeight() const {
Jan Möbius's avatar
   
Jan Möbius committed
1444
  return size().height();
Jan Möbius's avatar
 
Jan Möbius committed
1445
}
Jan Möbius's avatar
   
Jan Möbius committed
1446
QSize glViewer::glSize() const {
Jan Möbius's avatar
   
Jan Möbius committed
1447
  return QSize(size().width(),size().height());
Jan Möbius's avatar
 
Jan Möbius committed
1448
}
Jan Möbius's avatar
   
Jan Möbius committed
1449
QPoint glViewer::glMapFromGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
   
Jan Möbius committed
1450
1451
1452
  QPoint p (scene()->views().front()->mapFromGlobal(_pos));
  QPointF f (mapFromScene(QPointF(p.x(), p.y ())));
  return QPoint (f.x(), f.y());