QtBaseViewer.cc 64.5 KB
Newer Older
1
 /*===========================================================================*\
2
3
 *                                                                           *
 *                              OpenFlipper                                  *
Jan Möbius's avatar
Jan Möbius committed
4
 *      Copyright (C) 2001-2010 by Computer Graphics Group, RWTH Aachen      *
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
 *                           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>
103
#include <QGLFramebufferObjectFormat>
Jan Möbius's avatar
   
Jan Möbius committed
104
105
#include <QPainter>
#include <QPaintEngine>
Jan Möbius's avatar
 
Jan Möbius committed
106
107
108
109
110
111
112
113
114

#ifdef max
#  undef max
#endif

#ifdef min
#  undef min
#endif

115
#include <OpenFlipper/BasePlugin/PluginFunctions.hh>
Jan Möbius's avatar
Jan Möbius committed
116
#include <OpenFlipper/common/ViewObjectMarker.hh>
Jan Möbius's avatar
 
Jan Möbius committed
117

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
118
119
#include <OpenFlipper/common/GlobalOptions.hh>

120
121
#include <QGLFramebufferObject>

Jan Möbius's avatar
 
Jan Möbius committed
122
123
124
125
126
127
128
129
130
131
132
133
//== NAMESPACES ===============================================================



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

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

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


134
glViewer::glViewer( QGraphicsScene* _scene,
135
                    QGLWidget* _glWidget,
136
                    Viewer::ViewerProperties& _properties,
137
                    QGraphicsWidget* _parent) :
Jan Möbius's avatar
   
Jan Möbius committed
138
  QGraphicsWidget(_parent),
Jan Möbius's avatar
 
Jan Möbius committed
139
140
141
  glareaGrabbed_(false),
  projectionUpdateLocked_(false),
  blending_(true),
Jan Möbius's avatar
   
Jan Möbius committed
142
143
  glScene_(_scene),
  glWidget_(_glWidget),
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
144
145
  cursorPainter_(0),
  cursorPositionValid_(false),
146
147
  pProgram_(0),
  philipsStereoInitialized_(false),
Jan Möbius's avatar
Jan Möbius committed
148
149
150
  pickCache_(0),
  updatePickCache_(true),
  pickCacheSupported_(true),
151
  clickEvent_(QEvent::MouseButtonPress, QPoint (), Qt::NoButton, Qt::NoButton, Qt::NoModifier),
Dirk Wilden's avatar
Dirk Wilden committed
152
  properties_(_properties),
153
154
  glstate_(0),
  initialized_(false)
Jan Möbius's avatar
 
Jan Möbius committed
155
156
157
{

  // widget stuff
158
  createWidgets();
Jan Möbius's avatar
 
Jan Möbius committed
159
160
161

  // bind GL context to GL state class
  glstate_ = new ACG::GLState();
162
163
  properties_.setglState( glstate_ );

Jan Möbius's avatar
 
Jan Möbius committed
164
165
166
  // state
  orthoWidth_       = 2.0;
  isRotating_       = false;
Mike Kremer's avatar
Mike Kremer committed
167
  lookAround_       = false;
Jan Möbius's avatar
 
Jan Möbius committed
168
169
170
171
172
173
  near_             = 0.1;
  far_              = 100.0;
  fovy_             = 45.0;

  sceneGraphRoot_   = 0;

174
  normalsMode_      = NORMALIZE_NORMALS;
Jan Möbius's avatar
 
Jan Möbius committed
175
  projectionMode_   = PERSPECTIVE_PROJECTION;
Jan Möbius's avatar
Jan Möbius committed
176
  navigationMode_   = NORMAL_NAVIGATION;
177

Jan Möbius's avatar
 
Jan Möbius committed
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
  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 ();

195
196
197
198
199
200
201
  // timer for animation
  timer_ = new QTimer( this );
  connect( timer_, SIGNAL(timeout()), this, SLOT( slotAnimation()) );

  allowRotation_ = true;


Jan Möbius's avatar
   
Jan Möbius committed
202
203
204
  connect( &properties_,SIGNAL(updated()), this, SLOT( slotPropertiesUpdated() ) );


Dirk Wilden's avatar
Dirk Wilden committed
205
206
207
  //check for updated properties once
  slotPropertiesUpdated();

Jan Möbius's avatar
   
Jan Möbius committed
208
  setAcceptDrops(true);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
209

210
  setHome();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
211
212
213
214
215
216
217
218

  // initialize custom anaglyph stereo
  agTexWidth_ = 0;
  agTexHeight_ = 0;
  agTexture_[0] = 0;
  agTexture_[1] = 0;
  agProgram_ = 0;
  customAnaglyphSupported_ = false;
219
220
221

  clickTimer_.setSingleShot (true);
  connect (&clickTimer_, SIGNAL(timeout ()), this, SLOT(slotClickTimeout ()));
Jan Möbius's avatar
 
Jan Möbius committed
222
223
224
225
226
227
}


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


Jan Möbius's avatar
   
Jan Möbius committed
228
glViewer::~glViewer()
Jan Möbius's avatar
 
Jan Möbius committed
229
{
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
230
  finiCustomAnaglyphStereo ();
Jan Möbius's avatar
 
Jan Möbius committed
231
232
233
234
235
236
237
238
  delete glstate_;
}


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


QSize
Jan Möbius's avatar
   
Jan Möbius committed
239
glViewer::sizeHint() const
Jan Möbius's avatar
 
Jan Möbius committed
240
241
242
243
244
245
246
{
  return QSize( 600, 600 );
}

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


Jan Möbius's avatar
   
Jan Möbius committed
247
void glViewer::makeCurrent() {
Jan Möbius's avatar
 
Jan Möbius committed
248
249
250
  glWidget_->makeCurrent();
}

Jan Möbius's avatar
   
Jan Möbius committed
251
void glViewer::swapBuffers() {
Jan Möbius's avatar
 
Jan Möbius committed
252
253
254
255
256
257
258
  glWidget_->swapBuffers();
}


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


259
void glViewer::sceneGraph(ACG::SceneGraph::BaseNode* _root, const bool _resetTrackBall)
Jan Möbius's avatar
 
Jan Möbius committed
260
261
262
{
  sceneGraphRoot_ = _root;

Jan Möbius's avatar
Jan Möbius committed
263
  if (sceneGraphRoot_ )
Jan Möbius's avatar
 
Jan Möbius committed
264
  {
Jan Möbius's avatar
Jan Möbius committed
265
266
267
268
269
270
271
272
    
    // 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
273
    // get scene size
Jan Möbius's avatar
Jan Möbius committed
274
    // Single pass action, as the bounding box is not influenced by multipass traversal
Jan Möbius's avatar
 
Jan Möbius committed
275
276
277
278
279
280
281
282
    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] ) ||
283
         ( bbmin[2] > bbmax[2] )   )
284
      setScenePos( ACG::Vec3d( 0.0,0.0,0.0 ) , 1.0, _resetTrackBall );
285
286
    else
      setScenePos( ( bbmin + bbmax )        * 0.5,
287
                   ( bbmax - bbmin ).norm() * 0.5,
288
                   _resetTrackBall);
Jan Möbius's avatar
 
Jan Möbius committed
289
290
291
292
293
294
295
296
297
298
299
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


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


Jan Möbius's avatar
   
Jan Möbius committed
300
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
301
302
303
304
305
306
307
{
  trackMouse_ = _track;
}


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

Jan Möbius's avatar
   
Jan Möbius committed
308
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
309
310
311
312
313
314
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
315
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
316
317
318
319
320
321
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
322
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
323
324
325
326
327
328
329
330
331
332
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
   
Jan Möbius committed
333
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
334
335
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
336
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
337
  else
338
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
339
340

  updateProjectionMatrix();
341

342
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
343
344
}

345
346
347
void glViewer::toggleNavigationMode()
{
  if (navigationMode_ == NORMAL_NAVIGATION)
Mike Kremer's avatar
Mike Kremer committed
348
    navigationMode(FIRSTPERSON_NAVIGATION);
349
350
351
352
353
354
355
356
357
358
359
360
361
  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
362

Jan Möbius's avatar
   
Jan Möbius committed
363
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
364
365
366
367
368
369
370
371
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

Jan Möbius's avatar
Jan Möbius committed
372
373
  // In scereo mode we have to use a perspective matrix
  if (stereo_ || projectionMode_ == PERSPECTIVE_PROJECTION)
Jan Möbius's avatar
 
Jan Möbius committed
374
  {
375
376
377
378
379
380
381
382
    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
383
384
385
386
387
                          near_, far_);
  }
  else
  {
    double aspect;
Jan Möbius's avatar
Jan Möbius committed
388

389
    if (isVisible() && glWidth() && glHeight())
Jan Möbius's avatar
Jan Möbius committed
390
391
      aspect = (double) glWidth() / (double) glHeight();
    else
392
      aspect = 1.0;
Jan Möbius's avatar
 
Jan Möbius committed
393

Jan Möbius's avatar
Jan Möbius committed
394
395
396
    glstate_->ortho( -orthoWidth_, orthoWidth_,
                     -orthoWidth_/aspect, orthoWidth_/aspect,
                     near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
397
  }
398

Jan Möbius's avatar
 
Jan Möbius committed
399
400
401
402
403
404
}


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


405
void glViewer::setScenePos(const ACG::Vec3d& _center, double _radius, const bool _resetTrackBall)
Jan Möbius's avatar
 
Jan Möbius committed
406
{
407
408
  if(_resetTrackBall) {
    trackball_center_ = _center;
409
410
  }

411
412
  scene_center_ = _center;

413
414
415
416
417
418
  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
419

420
421
  // Set near plane
  near_   = std::max(0.0001f * scene_radius_,  -(c[2] + scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
422

423

424
425
426
427
  updateProjectionMatrix();
  updateGL();

  emit viewChanged();
428
429
}

430
431
432
433
//-----------------------------------------------------------------------------

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

434
435
436
437
438
439
	scene_center_ = _center;
}

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

void glViewer::setTrackBallCenter( const ACG::Vec3d& _center ) {
440

441
  trackball_center_ = _center;
442
}
443
444
445
446

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


Jan Möbius's avatar
   
Jan Möbius committed
447
void glViewer::viewingDirection( const ACG::Vec3d& _dir, const ACG::Vec3d& _up )
Jan Möbius's avatar
 
Jan Möbius committed
448
449
450
451
452
453
{
  // 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);
454

455
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
456
457
}

458
459
460
461
462
463
464
465
466
467
468
469
//-----------------------------------------------------------------------------

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
470
471
472
473

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


Jan Möbius's avatar
   
Jan Möbius committed
474
void glViewer::normalsMode(NormalsMode _mode)
Jan Möbius's avatar
 
Jan Möbius committed
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
{
  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
497
glViewer::copyToImage( QImage& _image,
Jan Möbius's avatar
Jan Möbius committed
498
499
		       unsigned int _l, unsigned int _t,
		       unsigned int _w, unsigned int _h,
Jan Möbius's avatar
 
Jan Möbius committed
500
501
			   GLenum /* _buffer */ )
{
502
503
504
505

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

Jan Möbius's avatar
Jan Möbius committed
506
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
507
508
509
510
511
512
}


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


Jan Möbius's avatar
   
Jan Möbius committed
513
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
514
{
Jan Möbius's avatar
   
Jan Möbius committed
515
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
516
  {
Jan Möbius's avatar
Jan Möbius committed
517
    updatePickCache_ = true;
Jan Möbius's avatar
   
Jan Möbius committed
518
    update();
519
520

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
521
522
523
524
525
526
527
528
  }
}



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


Jan Möbius's avatar
   
Jan Möbius committed
529
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
530
531
532
533
534
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
   
Jan Möbius committed
535
536
537
538
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
539
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
   
Jan Möbius committed
540
541

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
542
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
   
Jan Möbius committed
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559

  // 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
560
561
562
563
564
565
566
567
568
569
570
571
  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
572
573


Jan Möbius's avatar
 
Jan Möbius committed
574
575
576
577
578
579
}


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


Jan Möbius's avatar
   
Jan Möbius committed
580
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
581
582
583
{
  if (sceneGraphRoot_)
  {
584
    if (! properties_.renderPicking() ) {
585

Jan Möbius's avatar
Jan Möbius committed
586
      ViewObjectMarker *oM = properties_.objectMarker();
587
588
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
      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 ();
        }
      }

617
      ACG::SceneGraph::DrawAction action( properties_.drawMode(), *glstate_ , false);
618
      ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
619
620
621

      if( blending_ )
      {
622
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), *glstate_, true);
623
        ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
624
      }
625
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

      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
697
698
699
700
701
702
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
703
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
704
705
706
707
708
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
709
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
710
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
711
      ACG::SceneGraph::traverse_multipass(sceneGraphRoot_, action,*glstate_);
Jan Möbius's avatar
 
Jan Möbius committed
712
713

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
714
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
715
716
    }
  }
Jan Möbius's avatar
Jan Möbius committed
717

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
718
719
720
721
722
723
724
725
726
727
728
  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
729
730
731
732
733
734
735
}


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


void
Jan Möbius's avatar
   
Jan Möbius committed
736
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
737
{
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
738
739
740
741
742
743
744
745
746
747
748
749
  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;
750
751
752
  } else if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::Philips )
  {
    drawScenePhilipsStereo ();
753

754
    return;
755

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
756
  }
757
758


Jan Möbius's avatar
 
Jan Möbius committed
759

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
760
761
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
762
763
764
765
766


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


Jan Möbius's avatar
   
Jan Möbius committed
767
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
768
769
770
771
772
773
774
775
776
{
  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
777
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
778
779
780
781
782
783
784
785
{
  makeCurrent();
  glstate_->set_modelview(home_modelview_, home_inverse_modelview_);
  orthoWidth_ = homeOrthoWidth_;
  trackball_center_ = home_center_;
  trackball_radius_ = home_radius_;
  updateProjectionMatrix();
  updateGL();
786

787
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
788
789
790
791
792
793
794

}


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


Jan Möbius's avatar
   
Jan Möbius committed
795
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
796
{
797
	makeCurrent();
Jan Möbius's avatar
 
Jan Möbius committed
798

799
800
	// 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
801

802
803
804
805
806
807
808
809
810
811
812
813
814
815
	// 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();
816
817

    emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
818
819
820
821
822
823
824

}


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


Jan Möbius's avatar
   
Jan Möbius committed
825
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
826
827
828
829
830
831
832
833
834
835
{
  makeCurrent();

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

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
836
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
      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();
857

858
      emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
859
860
    }

Jan Möbius's avatar
Jan Möbius committed
861

Jan Möbius's avatar
 
Jan Möbius committed
862
863
864
865
  }
}


Jan Möbius's avatar
   
Jan Möbius committed
866
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
867
868
869
870
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
			 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
913
914
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
915
    }
916
    updatePickCache_ = true;
Jan Möbius's avatar
 
Jan Möbius committed
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
  }


  // 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
940
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
941
942
943
944
945
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
946

947
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
948
949
950
951
952
953
}


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


Jan Möbius's avatar
   
Jan Möbius committed
954
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
955
956
957
{

  // lock update
958
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
959
960
961
962
963
964
965
966
967
968
969
970
971
972

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

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


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

973
  // Update all settings which would require a redraw
974
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998

  // 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)
999
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1000
1001
1002
1003
1004

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
1005
1006
1007
1008
1009
1010
1011
1012

  initialized_ = true;

  if (sceneGraphRoot_)
  {
    sceneGraph(sceneGraphRoot_, true);
    viewAll ();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1013
1014
1015
1016
1017
1018
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1019
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
1020
{
1021
1022
  if (!initialized_)
    initializeGL ();
Jan Möbius's avatar
 
Jan Möbius committed
1023

1024
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
1025
  {
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1026
1027
    ACG::Vec4f clear_color;

1028
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045

    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_      );

1046
    applyProperties();
1047

Jan Möbius's avatar
 
Jan Möbius committed
1048
1049
1050
1051
    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1052
1053
1054
1055
1056
1057
    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
1058
1059
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
   
Jan Möbius committed
1060
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
1061

1062
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:    
Jan Möbius committed
1073
1074
1075

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
1076
1077
1078
1079
1080
1081
1082
  }
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1083
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
1084
1085
{
  updateProjectionMatrix();
Jan Möbius's avatar
   
Jan Möbius committed
1086
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1087
1088
1089
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
   
Jan Möbius committed
1090
  update();
1091

1092
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1093
1094
}

Jan Möbius's avatar
   
Jan Möbius committed
1095
1096
1097
void glViewer::moveEvent (QGraphicsSceneMoveEvent *)
{
  glstate_->viewport(scenePos().x(),
Jan Möbius's avatar
Jan Möbius committed
1098
1099
1100
                     scene()->height () - scenePos().y() - size().height (),
                     size().width (), size().height (),
                     scene()->width (), scene()->height ());
Jan Möbius's avatar
   
Jan Möbius committed
1101
  update();
1102

1103
  emit viewChanged();
Jan Möbius's avatar
   
Jan Möbius committed
1104
}
Jan Möbius's avatar
 
Jan Möbius committed
1105
1106
1107

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

Jan Möbius's avatar
   
Jan Möbius committed
1108
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1109
{
1110
  // Get current matrices
Jan Möbius's avatar
 
Jan Möbius committed
1111
1112
1113
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
  // 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
1129
1130
1131
1132
1133
1134
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1135
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1136
1137
1138
1139
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;

1140
1141
1142
  // Remove the magic from the string
  QString temp = _view;
  temp.remove(0,sizeof(VIEW_MAGIC));
Jan Möbius's avatar
 
Jan Möbius committed
1143

1144
1145
  //Split it into its components
  QStringList split = temp.split(QRegExp("[\\n\\s]"),QString::SkipEmptyParts);
Jan Möbius's avatar
 
Jan Möbius committed
1146
1147
1148
1149

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

1150
1151
1152
1153
1154
  // 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
1155

1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
  // 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
1198
1199
  makeCurrent();

1200
  // set projection mode
Jan Möbius's avatar
 
Jan Möbius committed
1201
1202
1203
  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

1204
  // Apply new modelview matrix
Jan Möbius's avatar
 
Jan Möbius committed
1205
1206
1207
  glstate_->set_modelview(m);


1208
1209
1210
1211
1212
1213
1214
1215
1216
  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
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226

  updateGL();

  return true;
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1227
void glViewer::actionCopyView()
1228
1229
1230
1231
1232
1233
1234
1235
1236
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1237
void glViewer::actionPasteView()
1238
1239
1240
1241
1242
1243
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1244
1245
1246
//-----------------------------------------------------------------------------

void
1247
glViewer::createWidgets()
Jan Möbius's avatar
 
Jan Möbius committed
1248
1249
{
  // Construct GL context & widget
1250

Jan Möbius's avatar
 
Jan Möbius committed
1251
1252
1253
1254
1255
  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)));
1256
1257
  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
1258
1259
1260
1261
1262
1263

  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)));
1264
1265
  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
1266

1267
  wheelX_=new ACG::QtWidgets::QtWheel( 0,"wheel-x" ,ACG::QtWidgets::QtWheel::Vertical);
Jan Möbius's avatar
 
Jan Möbius committed
1268
1269
1270
1271
  wheelX_->setMinimumSize(wheelX_->sizeHint());
  wheelX_->setMaximumSize(wheelX_->sizeHint());
  connect(wheelX_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelX(double)));
1272
1273
  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
1274

1275
  // Hide or show wheels (depending on ini option)
Jan Möbius's avatar
Jan Möbius committed
1276
1277
  if( ! OpenFlipperSettings().value("Core/Gui/glViewer/showControlWheels").toBool() ) 
    slotHideWheels();
Jan Möbius's avatar
 
Jan Möbius committed
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290

  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
1291
1292
1293
1294
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1295

Jan Möbius's avatar
Jan Möbius committed
1296
1297
1298
1299
  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
1300
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1301
1302
1303
1304
1305
}

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


Jan Möbius's avatar
   
Jan Möbius committed
1306
void glViewer::translate(const ACG::Vec3d& _trans)
Jan Möbius's avatar
 
Jan Möbius committed
1307
1308
1309
{
  makeCurrent();
  glstate_->translate(_trans[0], _trans[1], _trans[2], ACG::MULT_FROM_LEFT);
1310

1311
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1312
1313
1314
1315
1316
1317
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1318
void glViewer::initModelviewMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
1319
1320
1321
1322
1323
1324
1325
1326
1327
{
  makeCurrent();
  glstate_->reset_modelview();
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1328
void glViewer::rotate(const ACG::Vec3d&  _axis,
Jan Möbius's avatar
 
Jan Möbius committed
1329
1330
1331
1332
1333
1334
1335
1336
                          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);
1337

1338
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1339
1340
1341
1342
1343
1344
}


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


Jan Möbius's avatar
   
Jan Möbius committed
1345
unsigned int glViewer::glWidth() const {
Jan Möbius's avatar
   
Jan Möbius committed
1346
  return size().width();
Jan Möbius's avatar
 
Jan Möbius committed
1347
}
Jan Möbius's avatar
   
Jan Möbius committed
1348
unsigned int glViewer::glHeight() const {
Jan Möbius's avatar
   
Jan Möbius committed
1349
  return size().height();
Jan Möbius's avatar
 
Jan Möbius committed
1350
}
Jan Möbius's avatar
   
Jan Möbius committed
1351
QSize glViewer::glSize() const {
Jan Möbius's avatar
   
Jan Möbius committed
1352
  return QSize(size().width(),size().height());
Jan Möbius's avatar
 
Jan Möbius committed
1353
}
Jan Möbius's avatar
   
Jan Möbius committed
1354
QPoint glViewer::glMapFromGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
   
Jan Möbius committed
1355
1356
1357
  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
1358
1359
}

Jan Möbius's avatar
   
Jan Möbius committed
1360
QPoint glViewer::glMapToGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
   
Jan Möbius committed
1361
1362
1363
  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
1364
1365
1366
1367
1368
}

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


Jan Möbius's avatar
   
Jan Möbius committed
1369
void glViewer::slotWheelX(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1370
1371
1372
1373
{
  rotate(ACG::Vec3d(1,0,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

1374
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1375
1376
}

Jan Möbius's avatar
   
Jan Möbius committed
1377
void glViewer::slotWheelY(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1378
1379
1380
1381
{
  rotate(ACG::Vec3d(0,1,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

1382
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1383
1384
}

Jan Möbius's avatar
   
Jan Möbius committed
1385
void glViewer::slotWheelZ(double _dist)
Jan Möbius's avatar
 
Jan Möbius committed
1386
1387
1388
1389
1390
{
  double dz=_dist*0.5/M_PI*scene_radius_*2.0;
  translate(ACG::Vec3d(0,0,dz));
  updateGL();

1391
  emit viewChanged();
Jan Möbius's avatar
 
Jan Möbius committed
1392
1393
1394