QtBaseViewer.cc 45 KB
Newer Older
Jan Möbius's avatar
 
Jan Möbius committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
//=============================================================================
//
//                               OpenFlipper
//        Copyright (C) 2008 by Computer Graphics Group, RWTH Aachen
//                           www.openflipper.org
//
//-----------------------------------------------------------------------------
//
//                                License
//
//  OpenFlipper is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  OpenFlipper is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public License
//  along with OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
//
Jan Möbius's avatar
Jan Möbius committed
26 27 28
//   $Revision$
//   $Author$
//   $Date$
Jan Möbius's avatar
 
Jan Möbius committed
29 30 31 32 33 34 35 36
//
//=============================================================================




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


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

#include "QtBaseViewer.hh"
#include "QtGLGraphicsScene.hh"
#include "QtGLGraphicsView.hh"
Jan Möbius's avatar
Jan Möbius committed
47
#include "QtGLViewerLayout.hh"
Jan Möbius's avatar
 
Jan Möbius committed
48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91
#include <ACG/QtWidgets/QtWheel.hh>
#include <ACG/Scenegraph/DrawModes.hh>
#include <ACG/GL/gl.hh>

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

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

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

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

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

#ifdef max
#  undef max
#endif

#ifdef min
#  undef min
#endif

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

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

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



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

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

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


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

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

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

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

  sceneGraphRoot_   = 0;

  normalsMode_      = DONT_TOUCH_NORMALS;
  projectionMode_   = PERSPECTIVE_PROJECTION;
156

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

  light_matrix_.identity();

  trackMouse_ = false;

  // stereo
  stereo_ = false;

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

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

  redrawTime_.start ();

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

  allowRotation_ = true;


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


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

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

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

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


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


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


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


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


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


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

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


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

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


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


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

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

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

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

    if ( ( bbmin[0] > bbmax[0] ) ||
         ( bbmin[1] > bbmax[1] ) ||
265 266 267 268 269 270 271 272 273 274 275 276 277 278 279
         ( bbmin[2] > bbmax[2] )   ) {

      setScenePos( 1.0 );

      if(_updateCenter) {
    	  setSceneCenter( ACG::Vec3d( 0.0,0.0,0.0 ) );
      }
    } else {

      setScenePos( (bbmax - bbmin).norm() * 0.5 );

      if(_updateCenter) {
    	  setSceneCenter( (bbmin + bbmax)* 0.5);
      }
    }
Jan Möbius's avatar
 
Jan Möbius committed
280 281 282 283 284 285 286 287 288 289 290
  }

  updateGL();

  emit(signalSceneGraphChanged(sceneGraphRoot_));
}


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


Jan Möbius's avatar
 
Jan Möbius committed
291
void glViewer::trackMouse(bool _track)
Jan Möbius's avatar
 
Jan Möbius committed
292 293 294 295 296 297 298
{
  trackMouse_ = _track;
}


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

Jan Möbius's avatar
 
Jan Möbius committed
299
void glViewer::perspectiveProjection()
Jan Möbius's avatar
 
Jan Möbius committed
300 301 302 303 304 305
{
  projectionMode(PERSPECTIVE_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
306
void glViewer::orthographicProjection()
Jan Möbius's avatar
 
Jan Möbius committed
307 308 309 310 311 312
{
  projectionMode(ORTHOGRAPHIC_PROJECTION);
  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
313
void glViewer::toggleProjectionMode()
Jan Möbius's avatar
 
Jan Möbius committed
314 315 316 317 318 319 320 321 322 323
{
  if (projectionMode_ == ORTHOGRAPHIC_PROJECTION)
    projectionMode(PERSPECTIVE_PROJECTION);
  else
    projectionMode(ORTHOGRAPHIC_PROJECTION);

  updateGL();
}


Jan Möbius's avatar
 
Jan Möbius committed
324
void glViewer::projectionMode(ProjectionMode _p)
Jan Möbius's avatar
 
Jan Möbius committed
325 326
{
  if ((projectionMode_ = _p) == ORTHOGRAPHIC_PROJECTION)
327
    emit projectionModeChanged( true );
Jan Möbius's avatar
 
Jan Möbius committed
328
  else
329
    emit projectionModeChanged( false );
Jan Möbius's avatar
 
Jan Möbius committed
330 331 332 333 334

  updateProjectionMatrix();
}


Jan Möbius's avatar
 
Jan Möbius committed
335
void glViewer::updateProjectionMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
336 337 338 339 340 341 342 343 344 345 346 347
{
  if( projectionUpdateLocked_ )
    return;

  makeCurrent();

  glstate_->reset_projection();

  switch (projectionMode_)
  {
    case ORTHOGRAPHIC_PROJECTION:
    {
Jan Möbius's avatar
Jan Möbius committed
348 349 350 351 352
      double aspect;

      if (isVisible())
        aspect = (double) glWidth() / (double) glHeight();
      else
353
	     aspect = 1.0;
Jan Möbius's avatar
Jan Möbius committed
354

Jan Möbius's avatar
 
Jan Möbius committed
355
      glstate_->ortho( -orthoWidth_, orthoWidth_,
356 357
		                 -orthoWidth_/aspect, orthoWidth_/aspect,
		                 near_, far_ );
Jan Möbius's avatar
 
Jan Möbius committed
358 359 360 361 362 363
      break;
    }

    case PERSPECTIVE_PROJECTION:
    {
      glstate_->perspective(fovy_,
364 365
			                   (GLdouble) glWidth() / (GLdouble) glHeight(),
			                   near_, far_);
Jan Möbius's avatar
 
Jan Möbius committed
366 367 368 369 370 371 372 373 374
      break;
    }
  }
}


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


375
void glViewer::setScenePos(double _radius)
Jan Möbius's avatar
 
Jan Möbius committed
376
{
377
	scene_radius_ = trackball_radius_ = _radius;
Jan Möbius's avatar
 
Jan Möbius committed
378

379 380 381
	orthoWidth_ = 2.0 * scene_radius_;
	near_ = 0.001 * scene_radius_;
	far_ = 10.0 * scene_radius_;
Jan Möbius's avatar
 
Jan Möbius committed
382

383 384
	updateProjectionMatrix();
	updateGL();
Jan Möbius's avatar
 
Jan Möbius committed
385 386 387 388 389
}


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

390 391 392 393 394 395 396 397 398 399 400 401
void glViewer::setSceneCenter(const ACG::Vec3d& _center)
{
	scene_center_ = trackball_center_ = _center;

	updateProjectionMatrix();
	updateGL();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
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
442 443 444
			   GLenum /* _buffer */ )
{
  makeCurrent();
Jan Möbius's avatar
Jan Möbius committed
445
  _image = glWidget_->grabFrameBuffer(true).copy (_l, _t, _w, _h).convertToFormat (QImage::Format_RGB32);
Jan Möbius's avatar
 
Jan Möbius committed
446 447 448 449 450 451
}


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


Jan Möbius's avatar
 
Jan Möbius committed
452
void glViewer::updateGL()
Jan Möbius's avatar
 
Jan Möbius committed
453
{
Jan Möbius's avatar
 
Jan Möbius committed
454
  if (!properties_.updateLocked() && isVisible() )
Jan Möbius's avatar
 
Jan Möbius committed
455
  {
Jan Möbius's avatar
 
Jan Möbius committed
456
    update();
457 458

    emit viewUpdated();
Jan Möbius's avatar
 
Jan Möbius committed
459 460 461 462 463 464 465 466
  }
}



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


Jan Möbius's avatar
 
Jan Möbius committed
467
void glViewer::drawScene()
Jan Möbius's avatar
 
Jan Möbius committed
468 469 470 471 472
{
  QTime  timer;
  timer.start();


Jan Möbius's avatar
 
Jan Möbius committed
473 474 475 476
  // *****************************************************************
  // Adjust clipping planes
  // *****************************************************************
  // Far plane
Jan Möbius's avatar
 
Jan Möbius committed
477
  ACG::Vec3d c = glstate_->modelview().transform_point(scene_center_);
Jan Möbius's avatar
 
Jan Möbius committed
478 479

  // Set far plane
Jan Möbius's avatar
 
Jan Möbius committed
480
  far_    = std::max(0.0002f * scene_radius_,  -(c[2] - scene_radius_));
Jan Möbius's avatar
 
Jan Möbius committed
481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497

  // 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
498 499 500 501 502 503 504 505 506 507 508 509
  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
510 511


Jan Möbius's avatar
 
Jan Möbius committed
512 513 514 515 516 517
}


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


Jan Möbius's avatar
 
Jan Möbius committed
518
void glViewer::drawScene_mono()
Jan Möbius's avatar
 
Jan Möbius committed
519 520 521
{
  if (sceneGraphRoot_)
  {
522
    if (! properties_.renderPicking() ) {
523 524
      ACG::SceneGraph::DrawAction action( properties_.drawMode() , false);
      ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode() );
Jan Möbius's avatar
 
Jan Möbius committed
525 526 527

      if( blending_ )
      {
528 529
        ACG::SceneGraph::DrawAction action(properties_.drawMode(), true);
        ACG::SceneGraph::traverse(sceneGraphRoot_, action, *glstate_, properties_.drawMode());
Jan Möbius's avatar
 
Jan Möbius committed
530 531 532 533 534 535 536
      }
    } else {

      // prepare GL state
      makeCurrent();

      glDisable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
537
      glDisable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
538 539 540 541 542
      glClear(GL_DEPTH_BUFFER_BIT);
      glInitNames();
      glPushName((GLuint) 0);

      // do the picking
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
543
      glstate_->pick_init (true);
Jan Möbius's avatar
Jan Möbius committed
544 545
      ACG::SceneGraph::PickAction action(*glstate_, properties_.renderPickingMode(), properties_.drawMode());
      ACG::SceneGraph::traverse(sceneGraphRoot_, action);
Jan Möbius's avatar
 
Jan Möbius committed
546 547

      glEnable(GL_LIGHTING);
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
548
      glEnable(GL_BLEND);
Jan Möbius's avatar
 
Jan Möbius committed
549 550
    }
  }
Jan Möbius's avatar
Jan Möbius committed
551 552

  draw_lights();
Jan Möbius's avatar
 
Jan Möbius committed
553 554 555 556 557 558 559
}


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


void
Jan Möbius's avatar
 
Jan Möbius committed
560
glViewer::drawScene_stereo()
Jan Möbius's avatar
 
Jan Möbius committed
561
{
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
562 563 564 565 566 567 568 569 570 571 572 573 574
  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
575

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
576 577
  drawScene_anaglyphStereo ();
}
Jan Möbius's avatar
 
Jan Möbius committed
578 579 580 581 582


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


Jan Möbius's avatar
 
Jan Möbius committed
583
void glViewer::setHome()
Jan Möbius's avatar
 
Jan Möbius committed
584 585 586 587 588 589 590 591 592
{
  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
593
void glViewer::home()
Jan Möbius's avatar
 
Jan Möbius committed
594 595 596 597 598 599 600 601 602 603 604 605 606 607 608
{
  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
609
void glViewer::viewAll()
Jan Möbius's avatar
 
Jan Möbius committed
610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
{
  makeCurrent();

  // 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;
  updateProjectionMatrix();
  updateGL();

}


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


Jan Möbius's avatar
 
Jan Möbius committed
629
void glViewer::flyTo(const QPoint& _pos, bool _move_back)
Jan Möbius's avatar
 
Jan Möbius committed
630 631 632 633 634 635 636 637 638 639
{
  makeCurrent();

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

  if (pick( ACG::SceneGraph::PICK_ANYTHING, _pos, nodeIdx, targetIdx, &hitPoint))
  {
    if (projectionMode_ == PERSPECTIVE_PROJECTION)
    {
640
      ACG::Vec3d eye(glstate_->eye());
Jan Möbius's avatar
 
Jan Möbius committed
641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662
      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
663

Jan Möbius's avatar
 
Jan Möbius committed
664 665 666 667
  }
}


Jan Möbius's avatar
 
Jan Möbius committed
668
void glViewer::flyTo(const ACG::Vec3d&  _position,
Jan Möbius's avatar
 
Jan Möbius committed
669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714
			 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
715 716
      update();
      qApp->processEvents();
Jan Möbius's avatar
 
Jan Möbius committed
717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740
    }
  }


  // 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
741
void glViewer::setView(const ACG::GLMatrixd& _modelview,
Jan Möbius's avatar
 
Jan Möbius committed
742 743 744 745 746 747 748 749 750 751 752
			                  const ACG::GLMatrixd& _inverse_modelview)
{
  makeCurrent();
  glstate_->set_modelview(_modelview, _inverse_modelview);
  updateGL();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
753
void glViewer::initializeGL()
Jan Möbius's avatar
 
Jan Möbius committed
754 755 756
{

  // lock update
757
  properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
758 759 760 761 762 763 764 765 766 767 768 769 770 771

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

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


  projectionMode(   projectionMode_   );
  normalsMode(      normalsMode_      );

772
  // Update all settings which would require a redraw
773
  applyProperties();
Jan Möbius's avatar
 
Jan Möbius committed
774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802

  // 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)
803
  properties_.unLockUpdate();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
804 805 806 807 808

  customAnaglyphSupported_ = glewIsSupported("GL_ARB_fragment_program") &&
      (glewIsSupported("GL_ARB_texture_rectangle") ||
       glewIsSupported("GL_EXT_texture_rectangle") ||
       glewIsSupported("GL_NV_texture_rectangle"));
Jan Möbius's avatar
 
Jan Möbius committed
809 810 811 812 813
}


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

Jan Möbius's avatar
Jan Möbius committed
814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849
/**
 *
 */
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
850

Jan Möbius's avatar
 
Jan Möbius committed
851
void glViewer::update_lights()
Jan Möbius's avatar
 
Jan Möbius committed
852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883
{
  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
884
void glViewer::rotate_lights(ACG::Vec3d& _axis, double _angle)
Jan Möbius's avatar
 
Jan Möbius committed
885 886 887 888 889 890 891 892 893
{
  light_matrix_.rotate(_angle, _axis[0], _axis[1], _axis[2], ACG::MULT_FROM_LEFT);
  update_lights();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
894
void glViewer::paintGL()
Jan Möbius's avatar
 
Jan Möbius committed
895 896 897 898 899
{
  static bool initialized = false;
  if (!initialized)
  {
    // lock update
900
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927

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

    // initialize lights
    light_matrix_.identity();

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

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

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

    // unlock update (we started locked)
928
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
929 930 931 932

    initialized = true;
  }

933
  if (!properties_.updateLocked())
Jan Möbius's avatar
 
Jan Möbius committed
934
  {
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
935 936
    ACG::Vec4f clear_color;

937
    properties_.lockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954

    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_      );

955
    applyProperties();
956

Jan Möbius's avatar
 
Jan Möbius committed
957 958 959 960 961 962 963
    // light sources
    update_lights();

    glstate_->setState ();

    glColor4f(1.0,0.0,0.0,1.0);

Jan Möbius's avatar
Dennis:  
Jan Möbius committed
964 965 966 967 968 969
    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
970 971
    // clear (stereo mode clears buffers on its own)
    if (!stereo_)
Jan Möbius's avatar
 
Jan Möbius committed
972
      glstate_->clearBuffers ();
Jan Möbius's avatar
 
Jan Möbius committed
973

974
    properties_.unLockUpdate();
Jan Möbius's avatar
 
Jan Möbius committed
975 976 977 978 979 980 981 982 983 984

    // draw scene
    drawScene();

    glPopMatrix();

    glMatrixMode(GL_PROJECTION);
    glPopMatrix();

    glPopAttrib ();
Jan Möbius's avatar
Dennis:  
Jan Möbius committed
985 986 987

    if (properties_.renderPicking())
      properties_.glState().set_clear_color (clear_color);
Jan Möbius's avatar
 
Jan Möbius committed
988 989 990 991 992 993 994
  }
}


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


Jan Möbius's avatar
 
Jan Möbius committed
995
void glViewer::resizeEvent(QGraphicsSceneResizeEvent *)
Jan Möbius's avatar
 
Jan Möbius committed
996 997
{
  updateProjectionMatrix();
Jan Möbius's avatar
 
Jan Möbius committed
998 999 1000 1001 1002
  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
1003 1004
}

Jan Möbius's avatar
 
Jan Möbius committed
1005 1006 1007 1008 1009 1010 1011 1012
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
1013 1014 1015

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

Jan Möbius's avatar
 
Jan Möbius committed
1016
void glViewer::encodeView(QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044
{
  const ACG::GLMatrixd m = glstate_->modelview();
  const ACG::GLMatrixd p = glstate_->projection();

  _view.sprintf("%s\n"
                "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
                "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
                "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
                "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
                "%d %d %d %lf\n",
                VIEW_MAGIC,
                m(0,0), m(0,1), m(0,2), m(0,3),
                m(1,0), m(1,1), m(1,2), m(1,3),
                m(2,0), m(2,1), m(2,2), m(2,3),
                m(3,0), m(3,1), m(3,2), m(3,3),
                p(0,0), p(0,1), p(0,2), p(0,3),
                p(1,0), p(1,1), p(1,2), p(1,3),
                p(2,0), p(2,1), p(2,2), p(2,3),
                p(3,0), p(3,1), p(3,2), p(3,3),
                glWidth(), glHeight(),
                projectionMode_,
                orthoWidth_ );
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1045
bool glViewer::decodeView(const QString& _view)
Jan Möbius's avatar
 
Jan Möbius committed
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080
{
  if (_view.left(sizeof(VIEW_MAGIC)-1) != QString(VIEW_MAGIC))
    return false;



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

  sscanf( (_view.toAscii().data())+sizeof(VIEW_MAGIC)-1,
	  "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
	  "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
	  "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
	  "%lf %lf %lf %lf\n%lf %lf %lf %lf\n"
	  "%d %d %d %lf\n",
	  &m(0,0), &m(0,1), &m(0,2), &m(0,3),
	  &m(1,0), &m(1,1), &m(1,2), &m(1,3),
	  &m(2,0), &m(2,1), &m(2,2), &m(2,3),
	  &m(3,0), &m(3,1), &m(3,2), &m(3,3),
	  &p(0,0), &p(0,1), &p(0,2), &p(0,3),
	  &p(1,0), &p(1,1), &p(1,2), &p(1,3),
	  &p(2,0), &p(2,1), &p(2,2), &p(2,3),
	  &p(3,0), &p(3,1), &p(3,2), &p(3,3),
	  &w, &h,
	  &pMode,
	  &orthoWidth_ );

  makeCurrent();

  if (projectionMode_ != (ProjectionMode)pMode)
    projectionMode((ProjectionMode)pMode);

  glstate_->set_modelview(m);


1081 1082 1083 1084 1085 1086 1087 1088 1089
  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
1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101


  updateGL();


  return true;
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1102
void glViewer::actionCopyView()
1103 1104 1105 1106 1107 1108 1109 1110 1111
{
  QString view; encodeView(view);
  QApplication::clipboard()->setText(view);
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1112
void glViewer::actionPasteView()
1113 1114 1115 1116 1117 1118
{
  QString view; view=QApplication::clipboard()->text();
  decodeView(view);
}


Jan Möbius's avatar
 
Jan Möbius committed
1119 1120 1121
//-----------------------------------------------------------------------------

void
Jan Möbius's avatar
 
Jan Möbius committed
1122
glViewer::createWidgets(QStatusBar* _sb)
Jan Möbius's avatar
 
Jan Möbius committed
1123 1124 1125 1126
{
  setStatusBar(_sb);

  // Construct GL context & widget
1127

Jan Möbius's avatar
 
Jan Möbius committed
1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151
  wheelZ_=new ACG::QtWidgets::QtWheel( 0,"wheel-z",ACG::QtWidgets::QtWheel::Vertical);
  wheelZ_->setMinimumSize(wheelZ_->sizeHint());
  wheelZ_->setMaximumSize(wheelZ_->sizeHint());
  connect(wheelZ_,SIGNAL(angleChangedBy(double)),
	  this,SLOT(slotWheelZ(double)));
  wheelZ_->setToolTip( "Translate along <b>z-axis</b>.");
  wheelZ_->setWhatsThis( "Translate along <b>z-axis</b>.");

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

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

1152 1153 1154 1155 1156
  // Hide or show wheels (depending on ini option)
  if(!OpenFlipper::Options::showWheelsAtStartup()) {

	  slotHideWheels();
  }
Jan Möbius's avatar
 
Jan Möbius committed
1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169

  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
1170 1171 1172 1173
  glBaseLayout_ = new QtGLViewerLayout;
  glBaseLayout_->addWheelX(wheelX);
  glBaseLayout_->addWheelY(wheelY);
  glBaseLayout_->addWheelZ(wheelZ);
Jan Möbius's avatar
 
Jan Möbius committed
1174

Jan Möbius's avatar
Jan Möbius committed
1175 1176 1177 1178
  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
1179
  setLayout(glBaseLayout_);
Jan Möbius's avatar
 
Jan Möbius committed
1180 1181 1182 1183 1184
}

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


Jan Möbius's avatar
 
Jan Möbius committed
1185
void glViewer::translate(const ACG::Vec3d& _trans)
Jan Möbius's avatar
 
Jan Möbius committed
1186 1187 1188 1189 1190 1191 1192 1193 1194
{
  makeCurrent();
  glstate_->translate(_trans[0], _trans[1], _trans[2], ACG::MULT_FROM_LEFT);
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1195
void glViewer::initModelviewMatrix()
Jan Möbius's avatar
 
Jan Möbius committed
1196 1197 1198 1199 1200 1201 1202 1203 1204
{
  makeCurrent();
  glstate_->reset_modelview();
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1205
void glViewer::rotate(const ACG::Vec3d&  _axis,
Jan Möbius's avatar
 
Jan Möbius committed
1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219
                          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
1220
unsigned int glViewer::glWidth() const {
Jan Möbius's avatar
 
Jan Möbius committed
1221
  return size().width();
Jan Möbius's avatar
 
Jan Möbius committed
1222
}
Jan Möbius's avatar
 
Jan Möbius committed
1223
unsigned int glViewer::glHeight() const {
Jan Möbius's avatar
 
Jan Möbius committed
1224
  return size().height();
Jan Möbius's avatar
 
Jan Möbius committed
1225
}
Jan Möbius's avatar
 
Jan Möbius committed
1226
QSize glViewer::glSize() const {
Jan Möbius's avatar
 
Jan Möbius committed
1227
  return QSize(size().width(),size().height());
Jan Möbius's avatar
 
Jan Möbius committed
1228
}
Jan Möbius's avatar
 
Jan Möbius committed
1229
QPoint glViewer::glMapFromGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1230 1231 1232
  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
1233 1234
}

Jan Möbius's avatar
 
Jan Möbius committed
1235
QPoint glViewer::glMapToGlobal( const QPoint& _pos ) const {
Jan Möbius's avatar
 
Jan Möbius committed
1236 1237 1238
  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
1239 1240 1241 1242 1243
}

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


Jan Möbius's avatar
 
Jan Möbius committed
1244
void glViewer::slotWheelX(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1245 1246 1247 1248 1249 1250
{
  rotate(ACG::Vec3d(1,0,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1251
void glViewer::slotWheelY(double _dAngle)
Jan Möbius's avatar
 
Jan Möbius committed
1252 1253 1254 1255 1256 1257
{
  rotate(ACG::Vec3d(0,1,0),ACG::QtWidgets::QtWheel::deg(ACG::QtWidgets::QtWheel::clip(_dAngle)));
  updateGL();

}

Jan Möbius's avatar
 
Jan Möbius committed
1258
void glViewer::slotWheelZ(double _dist)
Jan Möbius's avatar
 
Jan Möbius committed
1259 1260 1261 1262 1263 1264 1265 1266 1267 1268
{
  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
1269
void glViewer::grabGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1270 1271 1272
{
  glareaGrabbed_ = true;

Jan Möbius's avatar
 
Jan Möbius committed
1273 1274 1275
  setCursor(Qt::BlankCursor);
  grabMouse();
  grabKeyboard();
Jan Möbius's avatar
 
Jan Möbius committed
1276 1277
}

Jan Möbius's avatar
 
Jan Möbius committed
1278
void glViewer::releaseGLArea()
Jan Möbius's avatar
 
Jan Möbius committed
1279 1280 1281
{
  glareaGrabbed_ = false;

Jan Möbius's avatar
 
Jan Möbius committed
1282 1283 1284
  ungrabMouse();
  ungrabKeyboard();
  setCursor(Qt::ArrowCursor);
Jan Möbius's avatar
 
Jan Möbius committed
1285 1286 1287 1288 1289 1290
}


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


Jan Möbius's avatar
 
Jan Möbius committed
1291
void glViewer::contextMenuEvent(QGraphicsSceneContextMenuEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1292
{
Jan Möbius's avatar
 
Jan Möbius committed
1293 1294
  QPoint p (_e->pos().x(), _e->pos().y());
  emit signalCustomContextMenuRequested (p);
Jan Möbius's avatar
 
Jan Möbius committed
1295 1296 1297 1298 1299
}


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

1300
void glViewer::mousePressEvent(QGraphicsSceneMouseEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1301
{
1302 1303 1304 1305 1306 1307 1308 1309
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonPress ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  _e->accept ();

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

Jan Möbius's avatar
 
Jan Möbius committed
1310
  // right button pressed => popup menu (ignore here)
1311
  if (_e->button() != Qt::RightButton )
Jan Möbius's avatar
 
Jan Möbius committed
1312
  {
1313
    switch (PluginFunctions::actionMode())
Jan Möbius's avatar
 
Jan Möbius committed
1314
    {
Jan Möbius's avatar
 
Jan Möbius committed
1315
      case Viewer::ExamineMode:
1316 1317
        if ((_e->modifiers() & Qt::ControlModifier)) // drag&drop
          emit startDragEvent( &me );
Jan Möbius's avatar
 
Jan Möbius committed
1318
        else
1319
          viewMouseEvent(&me); // examine
Jan Möbius's avatar
 
Jan Möbius committed
1320 1321
        break;

Jan Möbius's avatar
 
Jan Möbius committed
1322
      case Viewer::LightMode:
1323
        lightMouseEvent(&me);
1324
        break;
Jan Möbius's avatar
 
Jan Möbius committed
1325

Jan Möbius's avatar
 
Jan Möbius committed
1326
      case Viewer::PickingMode: // give event to application
1327 1328
        emit(signalMouseEvent(&me, PluginFunctions::pickMode() ));
        emit(signalMouseEvent(&me));
Jan Möbius's avatar
 
Jan Möbius committed
1329 1330
        break;

Jan Möbius's avatar
 
Jan Möbius committed
1331
      case Viewer::QuestionMode: // give event to application
1332
        emit(signalMouseEventIdentify(&me));
Jan Möbius's avatar
 
Jan Möbius committed
1333 1334 1335 1336 1337 1338 1339 1340 1341
        break;
    }
  }
}


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


1342
void glViewer::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* _e)
Jan Möbius's avatar
 
Jan Möbius committed
1343
{
1344 1345 1346 1347 1348 1349 1350 1351
  QPoint p (_e->scenePos().x(), _e->scenePos().y());
  QMouseEvent me(QEvent::MouseButtonDblClick ,p, _e->screenPos(), _e->button(),
                 _e->buttons(), _e->modifiers());
  _e->accept ();

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

1352
  switch (PluginFunctions::actionMode())
Jan Möbius's avatar
 
Jan Möbius committed
1353
  {
Jan Möbius's avatar
 
Jan Möbius committed
1354
    case Viewer::ExamineMode:
1355
      viewMouseEvent(&me);
Jan Möbius's avatar
 
Jan Möbius committed
1356 1357
      break;

Jan Möbius's avatar
 
Jan Möbius committed
1358
    case Viewer::LightMode:
1359
      lightMouseEvent(&me);
Jan Möbius's avatar
 
Jan Möbius committed
1360 1361
      break;

Jan Möbius's avatar
 
Jan Möbius committed
1362
    case Viewer::PickingMode: // give event to application