QtBaseViewer.cc 58 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),
Jan Möbius's avatar
Jan Möbius committed
145
146
147
  pickCache_(0),
  updatePickCache_(true),
  pickCacheSupported_(true),
148
  clickEvent_(QEvent::MouseButtonPress, QPoint (), Qt::NoButton, Qt::NoButton, Qt::NoModifier),
Dirk Wilden's avatar
Dirk Wilden committed
149
  properties_(_properties),
150
151
  glstate_(0),
  initialized_(false)
Jan Möbius's avatar
 
Jan Möbius committed
152
153
154
{

  // widget stuff
155
  createWidgets();
Jan Möbius's avatar
 
Jan Möbius committed
156
157
158

  // bind GL context to GL state class
  glstate_ = new ACG::GLState();
159
160
  properties_.setglState( glstate_ );

Jan Möbius's avatar
 
Jan Möbius committed
161
162
163
164
165
166
167
168
169
170
171
  // state
  orthoWidth_       = 2.0;
  isRotating_       = false;
  near_             = 0.1;
  far_              = 100.0;
  fovy_             = 45.0;

  sceneGraphRoot_   = 0;

  normalsMode_      = DONT_TOUCH_NORMALS;
  projectionMode_   = PERSPECTIVE_PROJECTION;
172

Jan Möbius's avatar
 
Jan Möbius committed
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192

  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 ();

193
194
195
196
197
198
199
  // timer for animation
  timer_ = new QTimer( this );
  connect( timer_, SIGNAL(timeout()), this, SLOT( slotAnimation()) );

  allowRotation_ = true;


Jan Möbius's avatar
 
Jan Möbius committed
200
201
202
  connect( &properties_,SIGNAL(updated()), this, SLOT( slotPropertiesUpdated() ) );


Dirk Wilden's avatar
Dirk Wilden committed
203
204
205
  //check for updated properties once
  slotPropertiesUpdated();

Jan Möbius's avatar
 
Jan Möbius committed
206
  setAcceptDrops(true);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
207

208
  setHome();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
209
210
211
212
213
214
215
216

  // initialize custom anaglyph stereo
  agTexWidth_ = 0;
  agTexHeight_ = 0;
  agTexture_[0] = 0;
  agTexture_[1] = 0;
  agProgram_ = 0;
  customAnaglyphSupported_ = false;
217
218
219

  clickTimer_.setSingleShot (true);
  connect (&clickTimer_, SIGNAL(timeout ()), this, SLOT(slotClickTimeout ()));
Jan Möbius's avatar
 
Jan Möbius committed
220
221
222
223
224
225
}


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


Jan Möbius's avatar
 
Jan Möbius committed
226
glViewer::~glViewer()
Jan Möbius's avatar
 
Jan Möbius committed
227
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
228
  finiCustomAnaglyphStereo ();
Jan Möbius's avatar
 
Jan Möbius committed
229
230
231
232
233
234
235
236
  delete glstate_;
}


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


QSize
Jan Möbius's avatar
 
Jan Möbius committed
237
glViewer::sizeHint() const
Jan Möbius's avatar
 
Jan Möbius committed
238
239
240
241
242
243
244
{
  return QSize( 600, 600 );
}

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


Jan Möbius's avatar
 
Jan Möbius committed
245
void glViewer::makeCurrent() {
Jan Möbius's avatar
 
Jan Möbius committed
246
247
248
  glWidget_->makeCurrent();
}

Jan Möbius's avatar
 
Jan Möbius committed
249
void glViewer::swapBuffers() {
Jan Möbius's avatar
 
Jan Möbius committed
250
251
252
253
254
255
256
  glWidget_->swapBuffers();
}


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


257
void glViewer::sceneGraph(ACG::SceneGraph::BaseNode* _root, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
258
{
Jan Möbius's avatar
Jan Möbius committed
259
260
//   if (sceneGraphRoot_ == _root)
//     return;
Jan Möbius's avatar
Jan Möbius committed
261

Jan Möbius's avatar
 
Jan Möbius committed
262
263
  sceneGraphRoot_ = _root;

Jan Möbius's avatar
Jan Möbius committed
264
  if (sceneGraphRoot_ )
Jan Möbius's avatar
 
Jan Möbius committed
265
266
267
268
269
270
271
272
273
274
  {
    // get scene size
    ACG::SceneGraph::BoundingBoxAction act;
    ACG::SceneGraph::traverse(sceneGraphRoot_, act);

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

    if ( ( bbmin[0] > bbmax[0] ) ||
         ( bbmin[1] > bbmax[1] ) ||
275
         ( bbmin[2] > bbmax[2] )   )
276
      setScenePos( ACG::Vec3d( 0.0,0.0,0.0 ) , 1.0, _setCenter );
277
278
    else
      setScenePos( ( bbmin + bbmax )        * 0.5,
279
280
                   ( bbmax - bbmin ).norm() * 0.5,
                   _setCenter);
Jan Möbius's avatar
 
Jan Möbius committed
281
282
283
284
285
286
287
288
289
290
291
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


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


Jan Möbius's avatar
 
Jan Möbius committed
292
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
293
294
295
296
297
298
299
{
  trackMouse_ = _track;
}


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

Jan Möbius's avatar
 
Jan Möbius committed
300
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
301
302
303
304
305
306
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
307
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
308
309
310
311
312
313
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
314
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
315
316
317
318
319
320
321
322
323
324
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
325
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
326
327
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
328
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
329
  else
330
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
331
332
333
334
335

  updateProjectionMatrix();
}


Jan Möbius's avatar
 
Jan Möbius committed
336
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
337
338
339
340
341
342
343
344
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

Jan Möbius's avatar
Jan Möbius committed
345
346
  // In scereo mode we have to use a perspective matrix
  if (stereo_ || projectionMode_ == PERSPECTIVE_PROJECTION)
Jan Möbius's avatar
 
Jan Möbius committed
347
  {
348
349
350
351
352
353
354
355
    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
356
357
358
359
360
                          near_, far_);
  }
  else
  {
    double aspect;
Jan Möbius's avatar
Jan Möbius committed
361

362
    if (isVisible() && glWidth() && glHeight())
Jan Möbius's avatar
Jan Möbius committed
363
364
      aspect = (double) glWidth() / (double) glHeight();
    else
365
      aspect = 1.0;
Jan Möbius's avatar
 
Jan Möbius committed
366

Jan Möbius's avatar
Jan Möbius committed
367
368
369
    glstate_->ortho( -orthoWidth_, orthoWidth_,
                     -orthoWidth_/aspect, orthoWidth_/aspect,
                     near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
370
371
372
373
374
375
376
  }
}


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


377
void glViewer::setScenePos(const ACG::Vec3d& _center, double _radius, const bool _setCenter)
Jan Möbius's avatar
 
Jan Möbius committed
378
{
379
380
381
	if(_setCenter) {
		scene_center_ = trackball_center_ = _center;
	}
Jan Möbius's avatar
 
Jan Möbius committed
382

383
	scene_radius_ = trackball_radius_ = _radius;
Jan Möbius's avatar
 
Jan Möbius committed
384

Dirk Wilden's avatar
Dirk Wilden committed
385
// 	orthoWidth_ = 2.0   * scene_radius_;
386
387
388
389
390
	near_       = 0.001 * scene_radius_;
	far_        = 10.0  * scene_radius_;

	updateProjectionMatrix();
	updateGL();
391
392
}

393
394
395
396
397
398
//-----------------------------------------------------------------------------

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

	scene_center_ = trackball_center_ = _center;
}
399
400
401
402

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


Jan Möbius's avatar
 
Jan Möbius committed
403
void glViewer::viewingDirection( const ACG::Vec3d& _dir, const ACG::Vec3d& _up )
Jan Möbius's avatar
 
Jan Möbius committed
404
405
406
407
408
409
410
411
412
413
414
415
{
  // calc eye point for this direction
  ACG::Vec3d eye = scene_center_ - _dir*(3.0*scene_radius_);

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


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


Jan Möbius's avatar
 
Jan Möbius committed
416
void glViewer::normalsMode(NormalsMode _mode)
Jan Möbius's avatar
 
Jan Möbius committed
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
{
  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
439
glViewer::copyToImage( QImage& _image,
Jan Möbius's avatar
Jan Möbius committed
440
441
		       unsigned int _l, unsigned int _t,
		       unsigned int _w, unsigned int _h,
Jan Möbius's avatar
 
Jan Möbius committed
442
443
			   GLenum /* _buffer */ )
{
444
445
446
447

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

Jan Möbius's avatar
Jan Möbius committed
448
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
449
450
451
452
453
454
}


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


Jan Möbius's avatar
 
Jan Möbius committed
455
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
456
{
Jan Möbius's avatar
 
Jan Möbius committed
457
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
458
  {
Jan Möbius's avatar
Jan Möbius committed
459
    updatePickCache_ = true;
Jan Möbius's avatar
 
Jan Möbius committed
460
    update();
461
462

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
463
464
465
466
467
468
469
470
  }
}



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


Jan Möbius's avatar
 
Jan Möbius committed
471
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
472
473
474
475
476
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
 
Jan Möbius committed
477
478
479
480
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
481
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
 
Jan Möbius committed
482
483

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
484
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501

  // 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
502
503
504
505
506
507
508
509
510
511
512
513
  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
514
515


Jan Möbius's avatar
 
Jan Möbius committed
516
517
518
519
520
521
}


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


Jan Möbius's avatar
 
Jan Möbius committed
522
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
523
524
525
{
  if (sceneGraphRoot_)
  {
526
    if (! properties_.renderPicking() ) {
527

Jan Möbius's avatar
Jan Möbius committed
528
      ViewObjectMarker *oM = properties_.objectMarker();
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
      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 ();
        }
      }

559
560
      ACG::SceneGraph::DrawAction action( properties_.drawMode() , false);
      ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
561
562
563

      if( blending_ )
      {
564
565
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), true);
        ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
566
      }
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
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
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638

      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
639
640
641
642
643
644
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
645
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
646
647
648
649
650
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
651
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
652
653
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
      ACG::SceneGraph::traverse(sceneGraphRoot_, action);
Jan Möbius's avatar
 
Jan Möbius committed
654
655

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
656
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
657
658
    }
  }
Jan Möbius's avatar
Jan Möbius committed
659

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
660
661
662
663
664
665
666
667
668
669
670
671
  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
672
  draw_lights();
Jan Möbius's avatar
 
Jan Möbius committed
673
674
675
676
677
678
679
}


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


void
Jan Möbius's avatar
 
Jan Möbius committed
680
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
681
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
682
683
684
685
686
687
688
689
690
691
692
693
694
  if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::OpenGL && OpenFlipper::Options::glStereo ())
  {
    drawScene_glStereo ();
    return;
  }
  else if (OpenFlipper::Options::stereoMode () == OpenFlipper::Options::AnaglyphCustom && customAnaglyphSupported_)
  {
    drawScene_customAnaglyphStereo ();

    // if somthing went wrong, fallback to normal anaglyph
    if (customAnaglyphSupported_)
      return;
  }
Jan Möbius's avatar
 
Jan Möbius committed
695

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
696
697
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
698
699
700
701
702


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


Jan Möbius's avatar
 
Jan Möbius committed
703
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
704
705
706
707
708
709
710
711
712
{
  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
713
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
{
  makeCurrent();
  glstate_->set_modelview(home_modelview_, home_inverse_modelview_);
  orthoWidth_ = homeOrthoWidth_;
  trackball_center_ = home_center_;
  trackball_radius_ = home_radius_;
  updateProjectionMatrix();
  updateGL();

}


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


Jan Möbius's avatar
 
Jan Möbius committed
729
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
730
{
731
	makeCurrent();
Jan Möbius's avatar
 
Jan Möbius committed
732

733
734
	// 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
735

736
737
738
739
740
741
742
743
744
745
746
747
748
749
	// move center (in camera coords) to origin and translate in -z dir
	translate(-(glstate_->modelview().transform_point(scene_center_))
			- ACG::Vec3d(0.0, 0.0, 3.0 * scene_radius_));

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

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

	properties_.unLockUpdate();
	updateProjectionMatrix();
	updateGL();
Jan Möbius's avatar
 
Jan Möbius committed
750
751
752
753
754
755
756

}


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


Jan Möbius's avatar
 
Jan Möbius committed
757
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
758
759
760
761
762
763
764
765
766
767
{
  makeCurrent();

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

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
768
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
      ACG::Vec3d t = hitPoint - eye;
      ACG::Vec3d e = eye + t * (_move_back ? -0.5f : 0.5f);
      flyTo(e, hitPoint, 300);
    }
    else
    {
      // Zoom in or out?
      orthoWidth_ *= _move_back ? 2.0 : 0.5;

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

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

      // Update the projection matrix
      updateProjectionMatrix();

      // Redraw scene
      updateGL();
    }

Jan Möbius's avatar
Jan Möbius committed
791

Jan Möbius's avatar
 
Jan Möbius committed
792
793
794
795
  }
}


Jan Möbius's avatar
 
Jan Möbius committed
796
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
			 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
843
844
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
    }
  }


  // 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
869
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
870
871
872
873
874
875
876
877
878
879
880
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
881
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
882
883
884
{

  // lock update
885
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
886
887
888
889
890
891
892
893
894
895
896
897
898
899

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

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


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

900
  // Update all settings which would require a redraw
901
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930

  // 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)
931
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
932
933
934
935
936

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
937
938
939
940
941
942
943
944

  initialized_ = true;

  if (sceneGraphRoot_)
  {
    sceneGraph(sceneGraphRoot_, true);
    viewAll ();
  }
Jan Möbius's avatar
 
Jan Möbius committed
945
946
947
948
949
}


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

Jan Möbius's avatar
Jan Möbius committed
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
/**
 *
 */
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
986

Jan Möbius's avatar
 
Jan Möbius committed
987
void glViewer::update_lights()
Jan Möbius's avatar
 
Jan Möbius committed
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
{
  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
1020
void glViewer::rotate_lights(ACG::Vec3d& _axis, double _angle)
Jan Möbius's avatar
 
Jan Möbius committed
1021
1022
1023
1024
1025
1026
1027
1028
1029
{
  light_matrix_.rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  update_lights();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1030
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
1031
{
1032
1033
  if (!initialized_)
    initializeGL ();
Jan Möbius's avatar
 
Jan Möbius committed
1034

1035
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
1036
  {
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1037
1038
    ACG::Vec4f clear_color;

1039
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056

    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_      );

1057
    applyProperties();
1058

Jan Möbius's avatar
 
Jan Möbius committed
1059
1060
1061
1062
1063
1064
1065
    // light sources
    update_lights();

    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1066
1067
1068
1069
1070
1071
    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
1072
1073
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
 
Jan Möbius committed
1074
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
1075

1076
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1087
1088
1089

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
1090
1091
1092
1093
1094
1095
1096
  }
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1097
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
1098
1099
{
  updateProjectionMatrix();
Jan Möbius's avatar
 
Jan Möbius committed
1100
1101
1102
1103
1104
  glstate_->viewport(scenePos().x(),
		     scene()->height () - scenePos().y() - size().height (),
		     size().width (), size().height (),
		     scene()->width (), scene()->height ());
  update();
Jan Möbius's avatar
 
Jan Möbius committed
1105
1106
}

Jan Möbius's avatar
 
Jan Möbius committed
1107
1108
1109
1110
1111
1112
1113
1114
void glViewer::moveEvent (QGraphicsSceneMoveEvent *)
{
  glstate_->viewport(scenePos().x(),
		     scene()->height () - scenePos().y() - size().height (),
		     size().width (), size().height (),
		     scene()->width (), scene()->height ());
  update();
}
Jan Möbius's avatar
 
Jan Möbius committed
1115
1116
1117

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

Jan Möbius's avatar
 
Jan Möbius committed
1118
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1119
{
1120
  // Get current matrices
Jan Möbius's avatar
 
Jan Möbius committed
1121
1122
1123
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
  // 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
1139
1140
1141
1142
1143
1144
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1145
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1146
1147
1148
1149
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;

1150
1151
1152
  // Remove the magic from the string
  QString temp = _view;
  temp.remove(0,sizeof(VIEW_MAGIC));
Jan Möbius's avatar
 
Jan Möbius committed
1153

1154
1155
  //Split it into its components
  QStringList split = temp.split(QRegExp("[\\n\\s]"),QString::SkipEmptyParts);
Jan Möbius's avatar
 
Jan Möbius committed
1156
1157
1158
1159

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

1160
1161
1162
1163
1164
  // 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
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
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
  // 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
1208
1209
  makeCurrent();

1210
  // set projection mode
Jan Möbius's avatar
 
Jan Möbius committed
1211
1212
1213
  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

1214
  // Apply new modelview matrix
Jan Möbius's avatar
 
Jan Möbius committed
1215
1216
1217
  glstate_->set_modelview(m);


1218
1219
1220
1221
1222
1223
1224
1225
1226
  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
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236

  updateGL();

  return true;
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1237
void glViewer::actionCopyView()
1238
1239
1240
1241
1242
1243
1244
1245
1246
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1247
void glViewer::actionPasteView()
1248
1249
1250
1251
1252
1253
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1254
1255
1256
//-----------------------------------------------------------------------------

void
1257
glViewer::createWidgets()
Jan Möbius's avatar
 
Jan Möbius committed
1258
1259
{
  // Construct GL context & widget
1260

Jan Möbius's avatar
 
Jan Möbius committed
1261
1262
1263
1264
1265
  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)));
1266
1267
  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
1268
1269
1270
1271
1272
1273

  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)));
1274
1275
  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
1276

1277
  wheelX_=new ACG::QtWidgets::QtWheel( 0,"wheel-x" ,ACG::QtWidgets::QtWheel::Vertical);
Jan Möbius's avatar
 
Jan Möbius committed
1278
1279
1280
1281
  wheelX_->setMinimumSize(wheelX_->sizeHint());
  wheelX_->setMaximumSize(wheelX_->sizeHint());
  connect(wheelX_,SIGNAL(angleChangedBy(double)),
          this,SLOT(slotWheelX(double)));
1282
1283
  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
1284

1285
1286
1287
1288
1289
  // Hide or show wheels (depending on ini option)
  if(!OpenFlipper::Options::showWheelsAtStartup()) {

	  slotHideWheels();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302

  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
1303
1304
1305
1306
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1307

Jan Möbius's avatar
Jan Möbius committed
1308
1309
1310
1311
  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
1312
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1313
1314
1315
1316
1317
}

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


Jan Möbius's avatar
 
Jan Möbius committed
1318
void glViewer::translate(const ACG::Vec3d& _trans)
Jan Möbius's avatar
 
Jan Möbius committed
1319
1320
1321
1322
1323
1324
1325
1326
1327
{
  makeCurrent();
  glstate_->translate(_trans[0], _trans[1], _trans[2], ACG::MULT_FROM_LEFT);
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1328
void glViewer::initModelviewMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
1329
1330
1331
1332
1333
1334
1335
1336
1337
{
  makeCurrent();
  glstate_->reset_modelview();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1338
void glViewer::rotate(const ACG::Vec3d&  _axis,
Jan Möbius's avatar
 
Jan Möbius committed
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
                          double        _angle,
                          const ACG::Vec3d&  _center)
{
  makeCurrent();
  ACG::Vec3d t = glstate_->modelview().transform_point(_center);
  glstate_->translate(-t[0], -t[1], -t[2], ACG::MULT_FROM_LEFT);
  glstate_->rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  glstate_->translate( t[0],  t[1],  t[2], ACG::MULT_FROM_LEFT);
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1353
unsigned int glViewer::glWidth() const {
Jan Möbius's avatar
 
Jan Möbius committed
1354
  return size().width();
Jan Möbius's avatar
 
Jan Möbius committed
1355
}
Jan Möbius's avatar
 
Jan Möbius committed
1356
unsigned int glViewer::glHeight() const {
Jan Möbius's avatar
 
Jan Möbius committed
1357
  return size().height();
Jan Möbius's avatar
 
Jan Möbius committed
1358
}
Jan Möbius's avatar
 
Jan Möbius committed
1359
QSize glViewer::glSize() const {
Jan Möbius's avatar
 
Jan Möbius committed
1360
  return QSize(size().width(),size().height());
Jan Möbius's avatar
 
Jan Möbius committed
1361
}
Jan Möbius's avatar
 
Jan Möbius committed
1362
QPoint glViewer::glMapFromGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1363
1364
1365
  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
1366
1367
}

Jan Möbius's avatar
 
Jan Möbius committed
1368
QPoint glViewer::glMapToGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1369
1370
1371
  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
1372
1373
1374
1375
1376
}

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


Jan Möbius's avatar
 
Jan Möbius committed
1377
void glViewer::slotWheelX(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1378
1379
1380
1381
1382
1383
{
  rotate(ACG::Vec3d(1,0,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1384
void glViewer::slotWheelY(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1385
1386
1387
1388
1389
1390
{
  rotate(ACG::Vec3d(0,1,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1391
void glViewer::slotWheelZ(double _dist)
Jan Möbius's avatar
 
Jan Möbius committed
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
{
  double dz=_dist*0.5/M_PI*scene_radius_*2.0;
  translate(ACG::Vec3d(0,0,dz));
  updateGL();

}

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


Jan Möbius's avatar
 
Jan Möbius committed
1402
void glViewer::grabGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1403
1404
1405
{
  glareaGrabbed_ = true;

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1406
1407
1408
1409
  if (cursorPainter_)
    cursorPainter_->setCursor(Qt::BlankCursor);
  else
    setCursor(Qt::BlankCursor);
Jan Möbius's avatar
 
Jan Möbius committed
1410
1411
  grabMouse();
  grabKeyboard();
Jan Möbius's avatar
 
Jan Möbius committed
1412
1413
}

Jan Möbius's avatar
 
Jan Möbius committed
1414
void glViewer::releaseGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1415
1416
1417
{
  glareaGrabbed_ = false;

Jan Möbius's avatar
 
Jan Möbius committed
1418
1419
  ungrabMouse();
  ungrabKeyboard();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
1420
1421
1422
1423
1424

  if (cursorPainter_)
    cursorPainter_->setCursor(Qt::ArrowCursor);
  else
    setCursor(Qt::ArrowCursor);
Jan Möbius's avatar
 
Jan Möbius committed
1425
1426
1427
1428
1429
1430
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1431
void glViewer::contextMenuEvent(QGraphicsSceneContextMenuEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1432
{
Jan Möbius's avatar
 
Jan Möbius committed
1433
1434
  QPoint p (_e->pos().x(), _e->pos().y());
  emit signalCustomContextMenuRequested (p);
Jan Möbius's avatar
 
Jan Möbius committed
1435
1436
1437
1438
1439
}


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