src/VTKViewer/VTKViewer_InteractorStyle.cxx

   1 // Copyright (C) 2007-2012  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 // Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 // This library is free software; you can redistribute it and/or
   7 // modify it under the terms of the GNU Lesser General Public
   8 // License as published by the Free Software Foundation; either
   9 // version 2.1 of the License.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 // Lesser General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU Lesser General Public
  17 // License along with this library; if not, write to the Free Software
  18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 //  SALOME VTKViewer : build VTK viewer into Salome desktop
  24 //  File   : VTKViewer_InteractorStyle.cxx
  25 //  Author : Christophe ATTANASIO
  26
  27 #include "VTKViewer_InteractorStyle.h"
  28
  29 #include "VTKViewer_Actor.h"
  30 #include "VTKViewer_Utilities.h"
  31 #include "VTKViewer_Trihedron.h"
  32 #include "VTKViewer_ViewWindow.h"
  33 #include "VTKViewer_RenderWindow.h"
  34 #include "VTKViewer_RenderWindowInteractor.h"
  35
  36 #include <vtkObjectFactory.h>
  37 #include <vtkMath.h>
  38 #include <vtkCommand.h>
  39 #include <vtkCamera.h>
  40 #include <vtkRenderer.h>
  41 #include <vtkPicker.h>
  42 #include <vtkPointPicker.h>
  43 #include <vtkCellPicker.h>
  44 #include <vtkLine.h>
  45 #include <vtkMapper.h>
  46 #include <vtkDataSet.h>
  47 #include <vtkSmartPointer.h>
  48 #include <vtkProperty.h>
  49
  50 #include <QApplication>
  51 #include <QRubberBand>
  52
  53 #include <algorithm>
  54
  55 /*
  56 static int GetEdgeId(vtkPicker *thePicker, SALOME_Actor *theActor, int theObjId){
  57   int anEdgeId = -1;
  58   if (vtkCell* aPickedCell = theActor->GetElemCell(theObjId)) {
  59     float aPickPosition[3];
  60     thePicker->GetPickPosition(aPickPosition);
  61     float aMinDist = 1000000.0, aDist = 0;
  62     for (int i = 0, iEnd = aPickedCell->GetNumberOfEdges(); i < iEnd; i++){
  63       if(vtkLine* aLine = vtkLine::SafeDownCast(aPickedCell->GetEdge(i))){
  64         int subId;  float pcoords[3], closestPoint[3], weights[3];
  65         aLine->EvaluatePosition(aPickPosition,closestPoint,subId,pcoords,aDist,weights);
  66         if (aDist < aMinDist) {
  67           aMinDist = aDist;
  68           anEdgeId = i;
  69         }
  70       }
  71     }
  72   }
  73   return anEdgeId;
  74 }
  75 */
  76
  77 vtkStandardNewMacro(VTKViewer_InteractorStyle);
  78
  79
  80 /*!Constructor.*/
  81 VTKViewer_InteractorStyle::VTKViewer_InteractorStyle()
  82 {
  83   m_Trihedron = 0;
  84   this->MotionFactor = 10.0;
  85   this->State = VTK_INTERACTOR_STYLE_CAMERA_NONE;
  86   this->RadianToDegree = 180.0 / vtkMath::Pi();
  87   this->ForcedState = VTK_INTERACTOR_STYLE_CAMERA_NONE;
  88   loadCursors();
  89
  90   myPreSelectionActor = VTKViewer_Actor::New();
  91   myPreSelectionActor->GetProperty()->SetColor(0,1,1);
  92   myPreSelectionActor->GetProperty()->SetLineWidth(5);
  93   myPreSelectionActor->GetProperty()->SetPointSize(5);
  94
  95   myRectBand = 0;
  96
  97   OnSelectionModeChanged();
  98 }
  99
 100
 101 /*!Destructor.*/
 102 VTKViewer_InteractorStyle::~VTKViewer_InteractorStyle()
 103 {
 104   m_ViewWnd->RemoveActor(myPreSelectionActor);
 105   endDrawRect();
 106 }
 107
 108
 109 /*!Set preselection properties.
 110  *\param theRed   - red color.
 111  *\param theGreen - green color.
 112  *\param theBlue  - blue color.
 113  *\param theWidth - width..
 114  */
 115 void VTKViewer_InteractorStyle::setPreselectionProp(const double& theRed, const double& theGreen,
 116                                                           const double& theBlue, const int& theWidth)
 117 {
 118   if ( myPreSelectionActor->GetProperty() == 0 )
 119     return;
 120   myPreSelectionActor->GetProperty()->SetColor(theRed, theGreen, theBlue);
 121   myPreSelectionActor->GetProperty()->SetLineWidth(theWidth);
 122   myPreSelectionActor->GetProperty()->SetPointSize(theWidth);
 123 }
 124
 125
 126 /*!Set render window interactor
 127  *\param theInteractor - interactor.
 128  */
 129 void VTKViewer_InteractorStyle::SetInteractor(vtkRenderWindowInteractor *theInteractor){
 130   m_Interactor = dynamic_cast<VTKViewer_RenderWindowInteractor*>(theInteractor);
 131   Superclass::SetInteractor(theInteractor);
 132 }
 133
 134
 135 /*!Set view window.
 136  *\param theViewWnd - SALOME VTKViewer_ViewWindow
 137  */
 138 void VTKViewer_InteractorStyle::setViewWnd(VTKViewer_ViewWindow* theViewWnd ){
 139   m_ViewWnd = theViewWnd;
 140   m_ViewWnd->AddActor(myPreSelectionActor);
 141   myPreSelectionActor->Delete();
 142 }
 143
 144
 145 /*!Set GUI window.
 146  *\param theWindow - QWidget window.
 147  */
 148 void VTKViewer_InteractorStyle::setGUIWindow(QWidget* theWindow){
 149   myGUIWindow = theWindow;
 150 }
 151
 152
 153 /*!Set trihedron.
 154  *\param theTrihedron - SALOME VTKViewer_Trihedron
 155  */
 156 void VTKViewer_InteractorStyle::setTriedron(VTKViewer_Trihedron* theTrihedron){
 157   m_Trihedron = theTrihedron;
 158 }
 159
 160 /*!Rotate camera.
 161  *\param dx -
 162  *\param dy -
 163  */
 164 void VTKViewer_InteractorStyle::RotateXY(int dx, int dy)
 165 {
 166   double rxf;
 167   double ryf;
 168   vtkCamera *cam;
 169
 170   if (this->CurrentRenderer == NULL)
 171     {
 172       return;
 173     }
 174
 175   int *size = this->CurrentRenderer->GetRenderWindow()->GetSize();
 176   this->DeltaElevation = -20.0 / size[1];
 177   this->DeltaAzimuth = -20.0 / size[0];
 178
 179   rxf = (double)dx * this->DeltaAzimuth *  this->MotionFactor;
 180   ryf = (double)dy * this->DeltaElevation * this->MotionFactor;
 181
 182   cam = this->CurrentRenderer->GetActiveCamera();
 183   cam->Azimuth(rxf);
 184   cam->Elevation(ryf);
 185   cam->OrthogonalizeViewUp();
 186   ::ResetCameraClippingRange(this->CurrentRenderer);
 187   //this->Interactor->Render();
 188   myGUIWindow->update();
 189 }
 190
 191 void VTKViewer_InteractorStyle::PanXY(int x, int y, int oldX, int oldY)
 192 {
 193   TranslateView(x, y, oldX, oldY);
 194   //this->Interactor->Render();
 195   myGUIWindow->update();
 196 }
 197
 198
 199 /*! Move the position of the camera along the direction of projection. (dx,dy)*/
 200 void VTKViewer_InteractorStyle::DollyXY(int dx, int dy)
 201 {
 202   if (this->CurrentRenderer == NULL) return;
 203
 204   double dxf = this->MotionFactor * (double)(dx) / (double)(this->CurrentRenderer->GetCenter()[1]);
 205   double dyf = this->MotionFactor * (double)(dy) / (double)(this->CurrentRenderer->GetCenter()[1]);
 206
 207   double zoomFactor = pow((double)1.1, dxf + dyf);
 208
 209   vtkCamera *aCam = this->CurrentRenderer->GetActiveCamera();
 210   if (aCam->GetParallelProjection())
 211     aCam->SetParallelScale(aCam->GetParallelScale()/zoomFactor);
 212   else{
 213     aCam->Dolly(zoomFactor);
 214     ::ResetCameraClippingRange(this->CurrentRenderer);
 215   }
 216
 217   //this->Interactor->Render();
 218   myGUIWindow->update();
 219 }
 220
 221 void VTKViewer_InteractorStyle::SpinXY(int x, int y, int oldX, int oldY)
 222 {
 223   vtkCamera *cam;
 224
 225   if (this->CurrentRenderer == NULL)
 226     {
 227       return;
 228     }
 229
 230   double newAngle = atan2((double)(y - this->CurrentRenderer->GetCenter()[1]),
 231                           (double)(x - this->CurrentRenderer->GetCenter()[0]));
 232   double oldAngle = atan2((double)(oldY -this->CurrentRenderer->GetCenter()[1]),
 233                           (double)(oldX - this->CurrentRenderer->GetCenter()[0]));
 234
 235   newAngle *= this->RadianToDegree;
 236   oldAngle *= this->RadianToDegree;
 237
 238   cam = this->CurrentRenderer->GetActiveCamera();
 239   cam->Roll(newAngle - oldAngle);
 240   cam->OrthogonalizeViewUp();
 241
 242   //this->Interactor->Render();
 243   myGUIWindow->update();
 244 }
 245
 246
 247 /*!On mouse move event.
 248  *\param ctrl  - CTRL (not used)
 249  *\param shift - SHIFT (on/off - integer 0/1)
 250  *\param x - x coordinate
 251  *\param y - y coordinate
 252  */
 253 void VTKViewer_InteractorStyle::OnMouseMove(int vtkNotUsed(ctrl),
 254                                                   int shift,
 255                                                   int x, int y)
 256 {
 257   myShiftState = shift;
 258   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 259     onOperation(QPoint(x, y));
 260   else if (ForcedState == VTK_INTERACTOR_STYLE_CAMERA_NONE)
 261     onCursorMove(QPoint(x, y));
 262 }
 263
 264
 265 /*!On Left button down event.
 266  *\param ctrl  - CTRL  (on/off - integer 0/1)
 267  *\param shift - SHIFT (on/off - integer 0/1)
 268  *\param x - x coordinate
 269  *\param y - y coordinate
 270  */
 271 void VTKViewer_InteractorStyle::OnLeftButtonDown(int ctrl, int shift,
 272                                                        int x, int y)
 273 {
 274   if (this->HasObserver(vtkCommand::LeftButtonPressEvent)) {
 275     this->InvokeEvent(vtkCommand::LeftButtonPressEvent,NULL);
 276     return;
 277   }
 278   this->FindPokedRenderer(x, y);
 279   if (this->CurrentRenderer == NULL) {
 280     return;
 281   }
 282   myShiftState = shift;
 283   // finishing current viewer operation
 284   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 285     onFinishOperation();
 286     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 287   }
 288   myOtherPoint = myPoint = QPoint(x, y);
 289   if (ForcedState != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 290     startOperation(ForcedState);
 291   } else {
 292     if (ctrl)
 293       startOperation(VTK_INTERACTOR_STYLE_CAMERA_ZOOM);
 294     else
 295       startOperation(VTK_INTERACTOR_STYLE_CAMERA_SELECT);
 296   }
 297   return;
 298 }
 299
 300
 301 /*!On left button up event.
 302  *\param ctrl  - CTRL  (not used)
 303  *\param shift - SHIFT (on/off - integer 0/1)
 304  *\param x - x coordinate (not used)
 305  *\param y - y coordinate (not used)
 306  */
 307 void VTKViewer_InteractorStyle::OnLeftButtonUp(int vtkNotUsed(ctrl),
 308                                                      int shift,
 309                                                      int vtkNotUsed(x),
 310                                                      int vtkNotUsed(y))
 311 {
 312   myShiftState = shift;
 313   // finishing current viewer operation
 314   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 315     onFinishOperation();
 316     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 317   }
 318 }
 319
 320
 321 /*!On left button up event.
 322  *\param ctrl  - CTRL  (on/off - integer 0/1)
 323  *\param shift - SHIFT (on/off - integer 0/1)
 324  *\param x - x coordinate
 325  *\param y - y coordinate
 326  */
 327 void VTKViewer_InteractorStyle::OnMiddleButtonDown(int ctrl,
 328                                                          int shift,
 329                                                          int x, int y)
 330 {
 331   if (this->HasObserver(vtkCommand::MiddleButtonPressEvent))
 332     {
 333       this->InvokeEvent(vtkCommand::MiddleButtonPressEvent,NULL);
 334       return;
 335     }
 336   this->FindPokedRenderer(x, y);
 337   if (this->CurrentRenderer == NULL)
 338     {
 339       return;
 340     }
 341   myShiftState = shift;
 342   // finishing current viewer operation
 343   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 344     onFinishOperation();
 345     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 346   }
 347   myOtherPoint = myPoint = QPoint(x, y);
 348   if (ForcedState != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 349     startOperation(ForcedState);
 350   }
 351   else {
 352     if (ctrl)
 353       startOperation(VTK_INTERACTOR_STYLE_CAMERA_PAN);
 354   }
 355 }
 356
 357
 358 /*!On middle button up event.
 359  *\param ctrl  - CTRL  (not used)
 360  *\param shift - SHIFT (on/off - integer 0/1)
 361  *\param x - x coordinate (not used)
 362  *\param y - y coordinate (not used)
 363  */
 364 void VTKViewer_InteractorStyle::OnMiddleButtonUp(int vtkNotUsed(ctrl),
 365                                                        int shift,
 366                                                        int vtkNotUsed(x),
 367                                                        int vtkNotUsed(y))
 368 {
 369   myShiftState = shift;
 370   // finishing current viewer operation
 371   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 372     onFinishOperation();
 373     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 374   }
 375 }
 376
 377
 378 /*!On right button down event.
 379  *\param ctrl  - CTRL  (on/off - integer 0/1)
 380  *\param shift - SHIFT (on/off - integer 0/1)
 381  *\param x - x coordinate
 382  *\param y - y coordinate
 383  */
 384 void VTKViewer_InteractorStyle::OnRightButtonDown(int ctrl,
 385                                                         int shift,
 386                                                         int x, int y)
 387 {
 388   if (this->HasObserver(vtkCommand::RightButtonPressEvent))
 389     {
 390       this->InvokeEvent(vtkCommand::RightButtonPressEvent,NULL);
 391       return;
 392     }
 393   this->FindPokedRenderer(x, y);
 394   if (this->CurrentRenderer == NULL)
 395     {
 396       return;
 397     }
 398   myShiftState = shift;
 399   // finishing current viewer operation
 400   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 401     onFinishOperation();
 402     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 403   }
 404   myOtherPoint = myPoint = QPoint(x, y);
 405   if (ForcedState != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 406     startOperation(ForcedState);
 407   }
 408   else {
 409     if (ctrl)
 410       startOperation(VTK_INTERACTOR_STYLE_CAMERA_ROTATE);
 411   }
 412 }
 413
 414 /*!On right button up event.
 415  *\param ctrl  - CTRL  (not used)
 416  *\param shift - SHIFT (on/off - integer 0/1)
 417  *\param x - x coordinate (not used)
 418  *\param y - y coordinate (not used)
 419  */
 420 void VTKViewer_InteractorStyle::OnRightButtonUp(int vtkNotUsed(ctrl),
 421                                                       int shift,
 422                                                       int vtkNotUsed(x),
 423                                                       int vtkNotUsed(y))
 424 {
 425   myShiftState = shift;
 426   // finishing current viewer operation
 427   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE) {
 428     onFinishOperation();
 429     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 430   }
 431 }
 432
 433 /*! @name XPM - x pixmaps. */
 434 //@{
 435 /*!Image Zoom cursor*/
 436 const char* imageZoomCursor[] = {
 437 "32 32 3 1",
 438 ". c None",
 439 "a c #000000",
 440 "# c #ffffff",
 441 "................................",
 442 "................................",
 443 ".#######........................",
 444 "..aaaaaaa.......................",
 445 "................................",
 446 ".............#####..............",
 447 "...........##.aaaa##............",
 448 "..........#.aa.....a#...........",
 449 ".........#.a.........#..........",
 450 ".........#a..........#a.........",
 451 "........#.a...........#.........",
 452 "........#a............#a........",
 453 "........#a............#a........",
 454 "........#a............#a........",
 455 "........#a............#a........",
 456 ".........#...........#.a........",
 457 ".........#a..........#a.........",
 458 ".........##.........#.a.........",
 459 "........#####.....##.a..........",
 460 ".......###aaa#####.aa...........",
 461 "......###aa...aaaaa.......#.....",
 462 ".....###aa................#a....",
 463 "....###aa.................#a....",
 464 "...###aa...............#######..",
 465 "....#aa.................aa#aaaa.",
 466 ".....a....................#a....",
 467 "..........................#a....",
 468 "...........................a....",
 469 "................................",
 470 "................................",
 471 "................................",
 472 "................................"};
 473
 474 /*!Image rotate cursor*/
 475 const char* imageRotateCursor[] = {
 476 "32 32 3 1",
 477 ". c None",
 478 "a c #000000",
 479 "# c #ffffff",
 480 "................................",
 481 "................................",
 482 "................................",
 483 "................................",
 484 "........#.......................",
 485 ".......#.a......................",
 486 "......#######...................",
 487 ".......#aaaaa#####..............",
 488 "........#..##.a#aa##........##..",
 489 ".........a#.aa..#..a#.....##.aa.",
 490 ".........#.a.....#...#..##.aa...",
 491 ".........#a.......#..###.aa.....",
 492 "........#.a.......#a..#aa.......",
 493 "........#a.........#..#a........",
 494 "........#a.........#a.#a........",
 495 "........#a.........#a.#a........",
 496 "........#a.........#a.#a........",
 497 ".........#.........#a#.a........",
 498 "........##a........#a#a.........",
 499 "......##.a#.......#.#.a.........",
 500 "....##.aa..##.....##.a..........",
 501 "..##.aa.....a#####.aa...........",
 502 "...aa.........aaa#a.............",
 503 "................#.a.............",
 504 "...............#.a..............",
 505 "..............#.a...............",
 506 "...............a................",
 507 "................................",
 508 "................................",
 509 "................................",
 510 "................................",
 511 "................................"};
 512 //@}
 513
 514 /*! Loads cursors for viewer operations - zoom, pan, etc...*/
 515 void VTKViewer_InteractorStyle::loadCursors()
 516 {
 517   myDefCursor       = QCursor(Qt::ArrowCursor);
 518   myHandCursor      = QCursor(Qt::PointingHandCursor);
 519   myPanCursor       = QCursor(Qt::SizeAllCursor);
 520   myZoomCursor      = QCursor(QPixmap(imageZoomCursor));
 521   myRotateCursor    = QCursor(QPixmap(imageRotateCursor));
 522   mySpinCursor      = QCursor(QPixmap(imageRotateCursor)); // temporarly !!!!!!
 523   myGlobalPanCursor = QCursor(Qt::CrossCursor);
 524   myCursorState     = false;
 525 }
 526
 527
 528 /*! event filter - controls mouse and keyboard events during viewer operations*/
 529 bool VTKViewer_InteractorStyle::eventFilter(QObject* object, QEvent* event)
 530 {
 531   if (!myGUIWindow) return false;
 532   if ( (event->type() == QEvent::MouseButtonPress || event->type() == QEvent::KeyPress) && object != myGUIWindow)
 533   {
 534     qApp->removeEventFilter(this);
 535     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 536   }
 537   return QObject::eventFilter(object, event);
 538 }
 539
 540
 541 /*! starts Zoom operation (e.g. through menu command)*/
 542 void VTKViewer_InteractorStyle::startZoom()
 543 {
 544   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 545   {
 546     onFinishOperation();
 547     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 548   }
 549   setCursor(VTK_INTERACTOR_STYLE_CAMERA_ZOOM);
 550   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_ZOOM;
 551   qApp->installEventFilter(this);
 552 }
 553
 554
 555 /*! starts Pan operation (e.g. through menu command)*/
 556 void VTKViewer_InteractorStyle::startPan()
 557 {
 558   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 559   {
 560     onFinishOperation();
 561     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 562   }
 563   setCursor(VTK_INTERACTOR_STYLE_CAMERA_PAN);
 564   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_PAN;
 565   qApp->installEventFilter(this);
 566 }
 567
 568 /*! starts Rotate operation (e.g. through menu command)*/
 569 void VTKViewer_InteractorStyle::startRotate()
 570 {
 571   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 572   {
 573     onFinishOperation();
 574     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 575   }
 576   setCursor(VTK_INTERACTOR_STYLE_CAMERA_ROTATE);
 577   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_ROTATE;
 578   qApp->installEventFilter(this);
 579 }
 580
 581
 582 /*! starts Spin operation (e.g. through menu command)*/
 583 void VTKViewer_InteractorStyle::startSpin()
 584 {
 585   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 586   {
 587     onFinishOperation();
 588     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 589   }
 590   setCursor(VTK_INTERACTOR_STYLE_CAMERA_SPIN);
 591   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_SPIN;
 592   qApp->installEventFilter(this);
 593 }
 594
 595
 596
 597 /*! starts Fit Area operation (e.g. through menu command)*/
 598 void VTKViewer_InteractorStyle::startFitArea()
 599 {
 600   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 601   {
 602     onFinishOperation();
 603     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 604   }
 605   setCursor(VTK_INTERACTOR_STYLE_CAMERA_FIT);
 606   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_FIT;
 607   qApp->installEventFilter(this);
 608 }
 609
 610
 611 /*!View fit all.*/
 612 void  VTKViewer_InteractorStyle::ViewFitAll() {
 613   int aTriedronWasVisible = false;
 614   if(m_Trihedron){
 615     aTriedronWasVisible = m_Trihedron->GetVisibility() == VTKViewer_Trihedron::eOn;
 616     if(aTriedronWasVisible) m_Trihedron->VisibilityOff();
 617   }
 618
 619   if(m_Trihedron->GetVisibleActorCount(CurrentRenderer)){
 620     m_Trihedron->VisibilityOff();
 621     ::ResetCamera(CurrentRenderer);
 622   }else{
 623     m_Trihedron->SetVisibility(VTKViewer_Trihedron::eOnlyLineOn);
 624     ::ResetCamera(CurrentRenderer,true);
 625   }
 626   if(aTriedronWasVisible) m_Trihedron->VisibilityOn();
 627   else m_Trihedron->VisibilityOff();
 628   ::ResetCameraClippingRange(CurrentRenderer);
 629 }
 630
 631
 632 /*! starts Global Panning operation (e.g. through menu command)*/
 633 void VTKViewer_InteractorStyle::startGlobalPan()
 634 {
 635   if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 636   {
 637     onFinishOperation();
 638     startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 639   }
 640   setCursor(VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN);
 641   ForcedState = VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN;
 642
 643   // store current zoom scale
 644   vtkCamera *cam = this->CurrentRenderer->GetActiveCamera();
 645   myScale = cam->GetParallelScale();
 646
 647   ViewFitAll();
 648
 649   if (myGUIWindow) myGUIWindow->update();
 650
 651   qApp->installEventFilter(this);
 652 }
 653
 654
 655 /*!\retval TRUE if needs redrawing*/
 656 bool VTKViewer_InteractorStyle::needsRedrawing()
 657 {
 658   return State == VTK_INTERACTOR_STYLE_CAMERA_ZOOM   ||
 659          State == VTK_INTERACTOR_STYLE_CAMERA_PAN    ||
 660          State == VTK_INTERACTOR_STYLE_CAMERA_ROTATE ||
 661          State == VTK_INTERACTOR_STYLE_CAMERA_SPIN   ||
 662          State == VTK_INTERACTOR_STYLE_CAMERA_NONE;
 663 }
 664
 665
 666 /*! fits viewer contents to rectangle
 667  *\param left - left side
 668  *\param top  - top side
 669  *\param right  - right side
 670  *\param bottom  - bottom side
 671  */
 672 void VTKViewer_InteractorStyle::fitRect(const int left,
 673                                        const int top,
 674                                        const int right,
 675                                        const int bottom)
 676 {
 677   if (this->CurrentRenderer == NULL) return;
 678
 679   // move camera
 680   int x = (left + right)/2;
 681   int y = (top + bottom)/2;
 682   int *aSize = this->CurrentRenderer->GetRenderWindow()->GetSize();
 683   int oldX = aSize[0]/2;
 684   int oldY = aSize[1]/2;
 685   TranslateView(oldX, oldY, x, y);
 686
 687   // zoom camera
 688   double dxf = (double)(aSize[0]) / (double)(abs(right - left));
 689   double dyf = (double)(aSize[1]) / (double)(abs(bottom - top));
 690   double zoomFactor = (dxf + dyf)/2 ;
 691
 692   vtkCamera *aCam = this->CurrentRenderer->GetActiveCamera();
 693   if(aCam->GetParallelProjection())
 694     aCam->SetParallelScale(aCam->GetParallelScale()/zoomFactor);
 695   else{
 696     aCam->Dolly(zoomFactor);
 697     ::ResetCameraClippingRange(this->CurrentRenderer);
 698   }
 699
 700   myGUIWindow->update();
 701 }
 702
 703
 704 /*! starts viewer operation (!internal usage!)*/
 705 void VTKViewer_InteractorStyle::startOperation(int operation)
 706 {
 707   switch(operation)
 708   {
 709   case VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN:
 710   case VTK_INTERACTOR_STYLE_CAMERA_ZOOM:
 711   case VTK_INTERACTOR_STYLE_CAMERA_PAN:
 712   case VTK_INTERACTOR_STYLE_CAMERA_ROTATE:
 713   case VTK_INTERACTOR_STYLE_CAMERA_SPIN:
 714   case VTK_INTERACTOR_STYLE_CAMERA_FIT:
 715   case VTK_INTERACTOR_STYLE_CAMERA_SELECT:
 716     if (State != VTK_INTERACTOR_STYLE_CAMERA_NONE)
 717       startOperation(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 718     State = operation;
 719     if (State != VTK_INTERACTOR_STYLE_CAMERA_SELECT)
 720       setCursor(operation);
 721     onStartOperation();
 722     break;
 723   case VTK_INTERACTOR_STYLE_CAMERA_NONE:
 724   default:
 725     setCursor(VTK_INTERACTOR_STYLE_CAMERA_NONE);
 726     State = ForcedState = VTK_INTERACTOR_STYLE_CAMERA_NONE;
 727     break;
 728   }
 729 }
 730
 731
 732 /*! sets proper cursor for window when viewer operation is activated*/
 733 void VTKViewer_InteractorStyle::setCursor(const int operation)
 734 {
 735   if (!myGUIWindow) return;
 736   switch (operation)
 737   {
 738     case VTK_INTERACTOR_STYLE_CAMERA_ZOOM:
 739       myGUIWindow->setCursor(myZoomCursor);
 740       myCursorState = true;
 741       break;
 742     case VTK_INTERACTOR_STYLE_CAMERA_PAN:
 743       myGUIWindow->setCursor(myPanCursor);
 744       myCursorState = true;
 745       break;
 746     case VTK_INTERACTOR_STYLE_CAMERA_ROTATE:
 747       myGUIWindow->setCursor(myRotateCursor);
 748       myCursorState = true;
 749       break;
 750     case VTK_INTERACTOR_STYLE_CAMERA_SPIN:
 751       myGUIWindow->setCursor(mySpinCursor);
 752       myCursorState = true;
 753       break;
 754     case VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN:
 755       myGUIWindow->setCursor(myGlobalPanCursor);
 756       myCursorState = true;
 757       break;
 758     case VTK_INTERACTOR_STYLE_CAMERA_FIT:
 759     case VTK_INTERACTOR_STYLE_CAMERA_SELECT:
 760       myGUIWindow->setCursor(myHandCursor);
 761       myCursorState = true;
 762       break;
 763     case VTK_INTERACTOR_STYLE_CAMERA_NONE:
 764     default:
 765       myGUIWindow->setCursor(myDefCursor);
 766       myCursorState = false;
 767       break;
 768   }
 769 }
 770
 771 /*!
 772   Draws rectangle by starting and current points
 773 */
 774 void VTKViewer_InteractorStyle::drawRect()
 775 {
 776   if ( !myRectBand ) {
 777     myRectBand = new QRubberBand( QRubberBand::Rectangle, myGUIWindow );
 778     QPalette palette;
 779     palette.setColor(myRectBand->foregroundRole(), Qt::white);
 780     myRectBand->setPalette(palette);
 781   }
 782   myRectBand->hide();
 783
 784   QRect aRect(myPoint, myOtherPoint);
 785   myRectBand->setGeometry( aRect );
 786   myRectBand->setVisible( aRect.isValid() );
 787 }
 788
 789 /*!
 790   \brief Delete rubber band on the end on the dragging operation.
 791 */
 792 void VTKViewer_InteractorStyle::endDrawRect()
 793 {
 794   delete myRectBand;
 795   myRectBand = 0;
 796 }
 797
 798 /*! called when viewer operation started (!put necessary initialization here!)*/
 799 void VTKViewer_InteractorStyle::onStartOperation()
 800 {
 801   if (!myGUIWindow) return;
 802   // VSV: LOD actor activisation
 803   //  this->Interactor->GetRenderWindow()->SetDesiredUpdateRate(this->Interactor->GetDesiredUpdateRate());
 804   switch (State) {
 805     case VTK_INTERACTOR_STYLE_CAMERA_SELECT:
 806     case VTK_INTERACTOR_STYLE_CAMERA_FIT:
 807     {
 808       drawRect();
 809       break;
 810     }
 811     case VTK_INTERACTOR_STYLE_CAMERA_ZOOM:
 812     case VTK_INTERACTOR_STYLE_CAMERA_PAN:
 813     case VTK_INTERACTOR_STYLE_CAMERA_ROTATE:
 814     case VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN:
 815     case VTK_INTERACTOR_STYLE_CAMERA_SPIN:
 816       break;
 817   }
 818 }
 819
 820
 821 /*! called when viewer operation finished (!put necessary post-processing here!)*/
 822 void VTKViewer_InteractorStyle::onFinishOperation()
 823 {
 824   if (!myGUIWindow) return;
 825
 826
 827 //  SUIT_Study* aActiveStudy = SUIT_Application::getDesktop()->getActiveStudy();
 828 //  SALOME_Selection* aSel    = SALOME_Selection::Selection( aActiveStudy->getSelection() );
 829
 830   // VSV: LOD actor activisation
 831   //  rwi->GetRenderWindow()->SetDesiredUpdateRate(rwi->GetStillUpdateRate());
 832
 833 //  Selection_Mode aSelectionMode = aSel->SelectionMode();
 834 //  bool aSelActiveCompOnly = aSel->IsSelectActiveCompOnly();
 835
 836 /*  switch (State) {
 837     case VTK_INTERACTOR_STYLE_CAMERA_SELECT:
 838     case VTK_INTERACTOR_STYLE_CAMERA_FIT:
 839     {
 840       QPainter p(myGUIWindow);
 841       p.setPen(Qt::lightGray);
 842       p.setRasterOp(Qt::XorROP);
 843       QRect rect(myPoint, myOtherPoint);
 844       p.drawRect(rect);
 845       rect = rect.normalize();
 846       if (State == VTK_INTERACTOR_STYLE_CAMERA_FIT) {
 847         // making fit rect opeation
 848         int w, h;
 849         m_Interactor->GetSize(w, h);
 850         int x1, y1, x2, y2;
 851         x1 = rect.left();
 852         y1 = h - rect.top() - 1;
 853         x2 = rect.right();
 854         y2 = h - rect.bottom() - 1;
 855         fitRect(x1, y1, x2, y2);
 856       }
 857       else {
 858         if (myPoint == myOtherPoint) {
 859           // process point selection
 860           int w, h, x, y;
 861           m_Interactor->GetSize(w, h);
 862           x = myPoint.x();
 863           y = h - myPoint.y() - 1;
 864
 865           this->FindPokedRenderer(x, y);
 866           m_Interactor->StartPickCallback();
 867
 868           vtkPicker* aPicker = vtkPicker::SafeDownCast(m_Interactor->GetPicker());
 869           aPicker->Pick(x, y, 0.0, this->CurrentRenderer);
 870
 871           SALOME_Actor* SActor = SALOME_Actor::SafeDownCast(aPicker->GetActor());
 872
 873           if (vtkCellPicker* picker = vtkCellPicker::SafeDownCast(aPicker)) {
 874             int aVtkId = picker->GetCellId();
 875             if ( aVtkId >= 0 && SActor && SActor->hasIO() && IsValid( SActor, aVtkId ) ) {
 876               int anObjId = SActor->GetElemObjId(aVtkId);
 877               if(anObjId >= 0){
 878                 Handle(SALOME_InteractiveObject) IO = SActor->getIO();
 879                 if(aSelectionMode != EdgeOfCellSelection) {
 880                   if(CheckDimensionId(aSelectionMode,SActor,anObjId)){
 881                     if (IsSelected(IO,aSel)) {
 882                       // This IO is already in the selection
 883                       aSel->AddOrRemoveIndex( IO, anObjId, myShiftState, false );
 884                     } else {
 885                       if (!myShiftState) {
 886                         this->HighlightProp( NULL );
 887                         aSel->ClearIObjects();
 888                       }
 889                       aSel->AddOrRemoveIndex( IO, anObjId, myShiftState, false );
 890                       aSel->AddIObject( IO, false );
 891                     }
 892                   }
 893                 }else{
 894                   if (!myShiftState) {
 895                     this->HighlightProp( NULL );
 896                     aSel->ClearIObjects();
 897                   }
 898                   int anEdgeId = GetEdgeId(picker,SActor,anObjId);
 899                   if (anEdgeId >= 0) {
 900                     aSel->AddOrRemoveIndex( IO, anObjId, true, false);
 901                     aSel->AddOrRemoveIndex( IO, -anEdgeId-1, true, true );
 902                     aSel->AddIObject( IO, false );
 903                   }
 904                 }
 905               }
 906             } else {
 907               this->HighlightProp( NULL );
 908               aSel->ClearIObjects();
 909             }
 910           } else if ( vtkPointPicker* picker = vtkPointPicker::SafeDownCast(aPicker) ) {
 911             int aVtkId = picker->GetPointId();
 912             if ( aVtkId >= 0 && IsValid( SActor, aVtkId, true ) ) {
 913               if ( SActor && SActor->hasIO() ) {
 914                 int anObjId = SActor->GetNodeObjId(aVtkId);
 915                 if(anObjId >= 0){
 916                   Handle(SALOME_InteractiveObject) IO = SActor->getIO();
 917                   if(IsSelected(IO,aSel)) {
 918                     // This IO is already in the selection
 919                     aSel->AddOrRemoveIndex( IO, anObjId, myShiftState, false );
 920                   } else {
 921                     if(!myShiftState) {
 922                       this->HighlightProp( NULL );
 923                       aSel->ClearIObjects();
 924                     }
 925                     aSel->AddOrRemoveIndex( IO, anObjId, myShiftState, false );
 926                     aSel->AddIObject( IO, false );
 927                   }
 928                 }
 929               }
 930             } else {
 931               this->HighlightProp( NULL );
 932               aSel->ClearIObjects();
 933             }
 934           } else {
 935             if ( SActor && SActor->hasIO() ) {
 936               this->PropPicked++;
 937               Handle(SALOME_InteractiveObject) IO = SActor->getIO();
 938               if(IsSelected(IO,aSel)) {
 939                 // This IO is already in the selection
 940                 if(myShiftState) {
 941                   aSel->RemoveIObject(IO);
 942                 }
 943               }
 944               else {
 945                 if(!myShiftState) {
 946                   this->HighlightProp( NULL );
 947                   aSel->ClearIObjects();
 948                 }
 949                 aSel->AddIObject( IO, false );
 950               }
 951             }else{
 952               // No selection clear all
 953               this->PropPicked = 0;
 954               this->HighlightProp( NULL );
 955               aSel->ClearIObjects();
 956             }
 957           }
 958           m_Interactor->EndPickCallback();
 959         } else {
 960           //processing rectangle selection
 961           QString aComponentDataType = SUIT_Application::getDesktop()->getComponentDataType();
 962           if(aSelActiveCompOnly && aComponentDataType.isEmpty()) return;
 963           m_Interactor->StartPickCallback();
 964
 965           if (!myShiftState) {
 966             this->PropPicked = 0;
 967             this->HighlightProp( NULL );
 968             aSel->ClearIObjects();
 969           }
 970
 971           // Compute bounds
 972           //      vtkCamera *cam = this->CurrentRenderer->GetActiveCamera();
 973           QRect rect(myPoint, myOtherPoint);
 974           rect = rect.normalize();
 975           int w, h;
 976           m_Interactor->GetSize(w, h);
 977           int x1, y1, x2, y2;
 978           x1 = rect.left();
 979           y1 = h - rect.top() - 1;
 980           x2 = rect.right();
 981           y2 = h - rect.bottom() - 1;
 982
 983           switch (aSelectionMode) {
 984           case NodeSelection: {
 985             if ( vtkPointPicker* aPointPicker = vtkPointPicker::SafeDownCast(m_Interactor->GetPicker()) ) {
 986               vtkActorCollection* aListActors = this->CurrentRenderer->GetActors();
 987               aListActors->InitTraversal();
 988               while (vtkActor* aActor = aListActors->GetNextActor()) {
 989                 if (!aActor->GetVisibility())
 990                   continue;
 991                 if(SALOME_Actor* SActor = SALOME_Actor::SafeDownCast(aActor)) {
 992                   if (SActor->hasIO()) {
 993                     Handle(SALOME_InteractiveObject) IO = SActor->getIO();
 994                     if (IO.IsNull())
 995                       continue;
 996                     if (aSelActiveCompOnly && aComponentDataType != IO->getComponentDataType())
 997                       continue;
 998                     if (vtkDataSet* aDataSet = SActor->GetInput()) {
 999                       SALOME_Selection::TContainerOfId anIndices;
1000                       for(int i = 0; i < aDataSet->GetNumberOfPoints(); i++) {
1001                         float aPoint[3];
1002                         aDataSet->GetPoint(i,aPoint);
1003                         if (IsInRect(aPoint,x1,y1,x2,y2)){
1004                           float aDisp[3];
1005                           ComputeWorldToDisplay(aPoint[0],aPoint[1],aPoint[2],aDisp);
1006                           if(aPointPicker->Pick(aDisp[0],aDisp[1],0.0,CurrentRenderer)){
1007                             if(vtkActorCollection *anActorCollection = aPointPicker->GetActors()){
1008                               if(anActorCollection->IsItemPresent(SActor)){
1009                                 float aPickedPoint[3];
1010                                 aPointPicker->GetMapperPosition(aPickedPoint);
1011                                 vtkIdType aVtkId = aDataSet->FindPoint(aPickedPoint);
1012                                 if ( aVtkId >= 0 && IsValid( SActor, aVtkId, true ) ){
1013                                   int anObjId = SActor->GetNodeObjId(aVtkId);
1014                                   anIndices.insert(anObjId);
1015                                 }
1016                               }
1017                             }
1018                           }
1019                         }
1020                       }
1021                       if (!anIndices.empty()) {
1022                         aSel->AddOrRemoveIndex(IO, anIndices, true, false);
1023                         aSel->AddIObject(IO, false);
1024                         anIndices.clear();
1025                       }else{
1026                         aSel->RemoveIObject(IO, false);
1027                       }
1028                     }
1029                   }
1030                 }
1031               }
1032             }
1033             break;
1034           }
1035           case CellSelection:
1036           case EdgeOfCellSelection:
1037           case EdgeSelection:
1038           case FaceSelection:
1039           case VolumeSelection:
1040             {
1041               vtkSmartPointer<VTKViewer_CellRectPicker> picker = VTKViewer_CellRectPicker::New();
1042               picker->SetTolerance(0.001);
1043               picker->Pick(x1, y1, 0.0, x2, y2, 0.0, this->CurrentRenderer);
1044
1045               vtkActorCollection* aListActors = picker->GetActors();
1046               aListActors->InitTraversal();
1047               while(vtkActor* aActor = aListActors->GetNextActor()) {
1048                 if (SALOME_Actor* aSActor = SALOME_Actor::SafeDownCast(aActor)) {
1049                   if (aSActor->hasIO()) {
1050                     Handle(SALOME_InteractiveObject) aIO = aSActor->getIO();
1051                     if (aSelActiveCompOnly && aComponentDataType != aIO->getComponentDataType())
1052                       continue;
1053                     VTKViewer_CellDataSet cellList = picker->GetCellData(aActor);
1054                     if ( !cellList.empty() ) {
1055                       SALOME_Selection::TContainerOfId anIndexes;
1056                       VTKViewer_CellDataSet::iterator it;
1057                       for ( it = cellList.begin(); it != cellList.end(); ++it ) {
1058                         int aCellId = (*it).cellId;
1059
1060                         if ( !IsValid( aSActor, aCellId ) )
1061                           continue;
1062
1063                         int anObjId = aSActor->GetElemObjId(aCellId);
1064                         if (anObjId != -1){
1065                           if ( CheckDimensionId(aSelectionMode,aSActor,anObjId) ) {
1066                             anIndexes.insert(anObjId);
1067                           }
1068                         }
1069                       }
1070                       aSel->AddOrRemoveIndex(aIO, anIndexes, true, false);
1071                       aSel->AddIObject(aIO, false);
1072                     }
1073                   }
1074                 }
1075               }
1076             }
1077             break;
1078           case ActorSelection: // objects selection
1079             {
1080               vtkSmartPointer<VTKViewer_RectPicker> picker = VTKViewer_RectPicker::New();
1081               picker->SetTolerance(0.001);
1082               picker->Pick(x1, y1, 0.0, x2, y2, 0.0, this->CurrentRenderer);
1083
1084               vtkActorCollection* aListActors = picker->GetActors();
1085               SALOME_ListIO aListIO;
1086               aListActors->InitTraversal();
1087               while(vtkActor* aActor = aListActors->GetNextActor()) {
1088                 if (SALOME_Actor* aSActor = SALOME_Actor::SafeDownCast(aActor)) {
1089                   if (aSActor->hasIO()) {
1090                     Handle(SALOME_InteractiveObject) aIO = aSActor->getIO();
1091                     if (!IsStored(aIO,aListIO))
1092                       aListIO.Append(aIO);
1093                   }
1094                 }
1095               }
1096               if (!aListIO.IsEmpty()) {
1097                 SALOME_ListIteratorOfListIO It(aListIO);
1098                 for(;It.More();It.Next()) {
1099                   Handle(SALOME_InteractiveObject) IOS = It.Value();
1100                   this->PropPicked++;
1101                   aSel->AddIObject( IOS, false );
1102                 }
1103               }
1104             } // end case 4
1105           } //end switch
1106           m_Interactor->EndPickCallback();
1107         }
1108         aActiveStudy->update3dViewers();
1109       }
1110     }
1111     break;
1112   case VTK_INTERACTOR_STYLE_CAMERA_ZOOM:
1113   case VTK_INTERACTOR_STYLE_CAMERA_PAN:
1114   case VTK_INTERACTOR_STYLE_CAMERA_ROTATE:
1115   case VTK_INTERACTOR_STYLE_CAMERA_SPIN:
1116     break;
1117   case VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN:
1118     {
1119       int w, h, x, y;
1120       m_Interactor->GetSize(w, h);
1121       x = myPoint.x();
1122       y = h - myPoint.y() - 1;
1123       Place(x, y);
1124     }
1125     break;
1126   }
1127   if (myGUIWindow) myGUIWindow->update();
1128 */
1129 }
1130
1131 /*! called during viewer operation when user moves mouse (!put necessary processing here!)*/
1132 void VTKViewer_InteractorStyle::onOperation(QPoint mousePos)
1133 {
1134   if (!myGUIWindow) return;
1135   int w, h;
1136   GetInteractor()->GetSize(w, h);
1137   switch (State) {
1138   case VTK_INTERACTOR_STYLE_CAMERA_PAN:
1139     {
1140       // processing panning
1141       //this->FindPokedCamera(mousePos.x(), mousePos.y());
1142       this->PanXY(mousePos.x(), myPoint.y(), myPoint.x(), mousePos.y());
1143       myPoint = mousePos;
1144       break;
1145     }
1146   case VTK_INTERACTOR_STYLE_CAMERA_ZOOM:
1147     {
1148       // processing zooming
1149       //this->FindPokedCamera(mousePos.x(), mousePos.y());
1150       this->DollyXY(mousePos.x() - myPoint.x(), mousePos.y() - myPoint.y());
1151       myPoint = mousePos;
1152       break;
1153     }
1154   case VTK_INTERACTOR_STYLE_CAMERA_ROTATE:
1155     {
1156       // processing rotation
1157       //this->FindPokedCamera(mousePos.x(), mousePos.y());
1158       this->RotateXY(mousePos.x() - myPoint.x(), myPoint.y() - mousePos.y());
1159       myPoint = mousePos;
1160       break;
1161     }
1162   case VTK_INTERACTOR_STYLE_CAMERA_SPIN:
1163     {
1164       // processing spinning
1165       //this->FindPokedCamera(mousePos.x(), mousePos.y());
1166       this->SpinXY(mousePos.x(), mousePos.y(), myPoint.x(), myPoint.y());
1167       myPoint = mousePos;
1168       break;
1169     }
1170   case VTK_INTERACTOR_STYLE_CAMERA_GLOBAL_PAN:
1171     {
1172       break;
1173     }
1174   case VTK_INTERACTOR_STYLE_CAMERA_SELECT:
1175     {
1176       if (!myCursorState)
1177         setCursor(VTK_INTERACTOR_STYLE_CAMERA_SELECT);
1178     }
1179   case VTK_INTERACTOR_STYLE_CAMERA_FIT:
1180     {
1181       myOtherPoint = mousePos;
1182       drawRect();
1183       break;
1184     }
1185   }
1186   this->LastPos[0] = mousePos.x();
1187   this->LastPos[1] = h - mousePos.y() - 1;
1188 }
1189
1190 /*! called when selection mode changed (!put necessary initialization here!)*/
1191 void VTKViewer_InteractorStyle::OnSelectionModeChanged()
1192 {
1193
1194   myPreSelectionActor->SetVisibility(false);
1195   myElemId = myEdgeId = myNodeId = -1;
1196   mySelectedActor = NULL;
1197 }
1198
1199 /*! called when user moves mouse inside viewer window and there is no active viewer operation \n
1200  * (!put necessary processing here!)
1201  */
1202 void VTKViewer_InteractorStyle::onCursorMove(QPoint mousePos) {
1203   // processing highlighting
1204 //  SUIT_Study* anActiveStudy = SUIT_Application::getDesktop()->getActiveStudy();
1205 //  SALOME_Selection* Sel = SALOME_Selection::Selection( anActiveStudy->getSelection() );
1206 //  Selection_Mode aSelectionMode = Sel->SelectionMode();
1207
1208 /*  int w, h, x, y;
1209   m_Interactor->GetSize(w, h);
1210   x = mousePos.x(); y = h - mousePos.y() - 1;
1211
1212   this->FindPokedRenderer(x,y);
1213   m_Interactor->StartPickCallback();
1214   myPreSelectionActor->SetVisibility(false);
1215
1216   vtkPicker* aPicker = vtkPicker::SafeDownCast(m_Interactor->GetPicker());
1217   aPicker->Pick(x, y, 0.0, this->CurrentRenderer);
1218
1219   SALOME_Actor* SActor = SALOME_Actor::SafeDownCast(aPicker->GetActor());
1220
1221   if (vtkCellPicker* picker = vtkCellPicker::SafeDownCast(aPicker)) {
1222     int aVtkId = picker->GetCellId();
1223     if ( aVtkId >= 0 ) {
1224       int anObjId = SActor->GetElemObjId(aVtkId);
1225       if ( SActor && SActor->hasIO() && IsValid( SActor, aVtkId ) ) {
1226         bool anIsSameObjId = (mySelectedActor == SActor && myElemId == anObjId);
1227         bool aResult = anIsSameObjId;
1228         if(!anIsSameObjId) {
1229           if(aSelectionMode != EdgeOfCellSelection) {
1230             aResult = CheckDimensionId(aSelectionMode,SActor,anObjId);
1231             if(aResult){
1232               mySelectedActor = SActor;
1233               myElemId = anObjId;
1234               m_Interactor->setCellData(anObjId,SActor,myPreSelectionActor);
1235             }
1236           }
1237         }
1238         if(aSelectionMode == EdgeOfCellSelection){
1239           int anEdgeId = GetEdgeId(picker,SActor,anObjId);
1240           bool anIsSameEdgeId = (myEdgeId != anEdgeId) && anIsSameObjId;
1241           aResult = anIsSameEdgeId;
1242           if(!anIsSameEdgeId) {
1243             aResult = (anEdgeId >= 0);
1244             if (aResult) {
1245               mySelectedActor = SActor;
1246               myEdgeId = anEdgeId;
1247               myElemId = anObjId;
1248               m_Interactor->setEdgeData(anObjId,SActor,-anEdgeId-1,myPreSelectionActor);
1249             }
1250           }
1251         }
1252         if(aResult) {
1253           myPreSelectionActor->GetProperty()->SetRepresentationToSurface();
1254           myPreSelectionActor->SetVisibility(true);
1255         }
1256       }
1257     }
1258   }
1259   else if (vtkPointPicker* picker = vtkPointPicker::SafeDownCast(aPicker)) {
1260     int aVtkId = picker->GetPointId();
1261     if ( aVtkId >= 0 && IsValid( SActor, aVtkId, true ) ) {
1262       if ( SActor && SActor->hasIO() ) {
1263         int anObjId = SActor->GetNodeObjId(aVtkId);
1264         bool anIsSameObjId = (mySelectedActor == SActor && myNodeId == anObjId);
1265         if(!anIsSameObjId) {
1266           mySelectedActor = SActor;
1267           myNodeId = anObjId;
1268           m_Interactor->setPointData(anObjId,SActor,myPreSelectionActor);
1269         }
1270         myPreSelectionActor->GetProperty()->SetRepresentationToSurface();
1271         myPreSelectionActor->SetVisibility(true);
1272       }
1273     }
1274   }
1275   else if ( vtkPicker::SafeDownCast(aPicker) ) {
1276     if ( SActor ) {
1277       if ( myPreViewActor != SActor ) {
1278         if ( myPreViewActor != NULL ) {
1279           myPreViewActor->SetPreSelected( false );
1280         }
1281         myPreViewActor = SActor;
1282
1283         if ( SActor->hasIO() ) {
1284           Handle( SALOME_InteractiveObject) IO = SActor->getIO();
1285           if ( !IsSelected(IO,Sel) ) {
1286             // Find All actors with same IO
1287             vtkActorCollection* theActors = this->CurrentRenderer->GetActors();
1288             theActors->InitTraversal();
1289             while( vtkActor *ac = theActors->GetNextActor() ) {
1290               if ( SALOME_Actor* anActor = SALOME_Actor::SafeDownCast( ac ) ) {
1291                 if ( anActor->hasIO() ) {
1292                   Handle(SALOME_InteractiveObject) IOS = anActor->getIO();
1293                   if(IO->isSame(IOS)) {
1294                     anActor->SetPreSelected( true );
1295                   }
1296                 }
1297               }
1298             }
1299           }
1300         }
1301       }
1302     } else {
1303       myPreViewActor = NULL;
1304       vtkActorCollection* theActors = this->CurrentRenderer->GetActors();
1305       theActors->InitTraversal();
1306       while( vtkActor *ac = theActors->GetNextActor() ) {
1307         if ( SALOME_Actor* anActor = SALOME_Actor::SafeDownCast( ac ) ) {
1308           anActor->SetPreSelected( false );
1309         }
1310       }
1311     }
1312   }
1313   m_Interactor->EndPickCallback();
1314   //m_Interactor->Render();
1315   myGUIWindow->update();
1316
1317   this->LastPos[0] = x;
1318   this->LastPos[1] = y;*/
1319 }
1320
1321 /*! called on finsh GlobalPan operation */
1322 void VTKViewer_InteractorStyle::Place(const int theX, const int theY)
1323 {
1324   if (this->CurrentRenderer == NULL) {
1325     return;
1326   }
1327
1328   //translate view
1329   int *aSize = this->CurrentRenderer->GetRenderWindow()->GetSize();
1330   int centerX = aSize[0]/2;
1331   int centerY = aSize[1]/2;
1332
1333   TranslateView(centerX, centerY, theX, theY);
1334
1335   // restore zoom scale
1336   vtkCamera *cam = this->CurrentRenderer->GetActiveCamera();
1337   cam->SetParallelScale(myScale);
1338   ::ResetCameraClippingRange(this->CurrentRenderer);
1339
1340   if (myGUIWindow) myGUIWindow->update();
1341
1342 }
1343
1344
1345
1346 /*! Translates view from Point to Point*/
1347 void VTKViewer_InteractorStyle::TranslateView(int toX, int toY, int fromX, int fromY)
1348 {
1349   vtkCamera *cam = this->CurrentRenderer->GetActiveCamera();
1350   vtkFloatingPointType viewFocus[4], focalDepth, viewPoint[3];
1351   vtkFloatingPointType newPickPoint[4], oldPickPoint[4], motionVector[3];
1352   cam->GetFocalPoint(viewFocus);
1353
1354   this->ComputeWorldToDisplay(viewFocus[0], viewFocus[1],
1355                               viewFocus[2], viewFocus);
1356   focalDepth = viewFocus[2];
1357
1358   this->ComputeDisplayToWorld(vtkFloatingPointType(toX), vtkFloatingPointType(toY),
1359                               focalDepth, newPickPoint);
1360   this->ComputeDisplayToWorld(vtkFloatingPointType(fromX),vtkFloatingPointType(fromY),
1361                               focalDepth, oldPickPoint);
1362
1363   // camera motion is reversed
1364   motionVector[0] = oldPickPoint[0] - newPickPoint[0];
1365   motionVector[1] = oldPickPoint[1] - newPickPoint[1];
1366   motionVector[2] = oldPickPoint[2] - newPickPoint[2];
1367
1368   cam->GetFocalPoint(viewFocus);
1369   cam->GetPosition(viewPoint);
1370   cam->SetFocalPoint(motionVector[0] + viewFocus[0],
1371                      motionVector[1] + viewFocus[1],
1372                      motionVector[2] + viewFocus[2]);
1373   cam->SetPosition(motionVector[0] + viewPoint[0],
1374                    motionVector[1] + viewPoint[1],
1375                    motionVector[2] + viewPoint[2]);
1376 }
1377
1378
1379 /*! Checks: is the given Actor within display coordinates?*/
1380 bool VTKViewer_InteractorStyle::IsInRect(vtkActor* theActor,
1381                                                const int left, const int top,
1382                                                const int right, const int bottom)
1383 {
1384   vtkFloatingPointType* aBounds = theActor->GetBounds();
1385   vtkFloatingPointType aMin[3], aMax[3];
1386   ComputeWorldToDisplay(aBounds[0], aBounds[2], aBounds[4], aMin);
1387   ComputeWorldToDisplay(aBounds[1], aBounds[3], aBounds[5], aMax);
1388   if (aMin[0] > aMax[0]) {
1389     vtkFloatingPointType aBuf = aMin[0];
1390     aMin[0] = aMax[0];
1391     aMax[0] = aBuf;
1392   }
1393   if (aMin[1] > aMax[1]) {
1394     vtkFloatingPointType aBuf = aMin[1];
1395     aMin[1] = aMax[1];
1396     aMax[1] = aBuf;
1397   }
1398
1399   return ((aMin[0]>left) && (aMax[0]<right) && (aMin[1]>bottom) && (aMax[1]<top));
1400 }
1401
1402
1403 /*! Checks: is the given Cell within display coordinates?*/
1404 bool VTKViewer_InteractorStyle::IsInRect(vtkCell* theCell,
1405                                                const int left, const int top,
1406                                                const int right, const int bottom)
1407 {
1408   vtkFloatingPointType* aBounds = theCell->GetBounds();
1409   vtkFloatingPointType aMin[3], aMax[3];
1410   ComputeWorldToDisplay(aBounds[0], aBounds[2], aBounds[4], aMin);
1411   ComputeWorldToDisplay(aBounds[1], aBounds[3], aBounds[5], aMax);
1412   if (aMin[0] > aMax[0]) {
1413     vtkFloatingPointType aBuf = aMin[0];
1414     aMin[0] = aMax[0];
1415     aMax[0] = aBuf;
1416   }
1417   if (aMin[1] > aMax[1]) {
1418     vtkFloatingPointType aBuf = aMin[1];
1419     aMin[1] = aMax[1];
1420     aMax[1] = aBuf;
1421   }
1422
1423   return ((aMin[0]>left) && (aMax[0]<right) && (aMin[1]>bottom) && (aMax[1]<top));
1424 }
1425
1426 /*!Checks: is given point \a thePoint in rectangle*/
1427 bool VTKViewer_InteractorStyle::IsInRect(vtkFloatingPointType* thePoint,
1428                                          const int left, const int top,
1429                                          const int right, const int bottom)
1430 {
1431   vtkFloatingPointType aPnt[3];
1432   ComputeWorldToDisplay(thePoint[0], thePoint[1], thePoint[2], aPnt);
1433
1434   return ((aPnt[0]>left) && (aPnt[0]<right) && (aPnt[1]>bottom) && (aPnt[1]<top));
1435 }
1436
1437 /*!Set filter \a theFilter*/
1438 void  VTKViewer_InteractorStyle::SetFilter( const Handle(VTKViewer_Filter)& theFilter )
1439 {
1440   myFilters[ theFilter->GetId() ] = theFilter;
1441 }
1442
1443 /*!Checks: is filter present (with id \a theId)
1444  *\param theId - filter id.
1445  */
1446 bool  VTKViewer_InteractorStyle::IsFilterPresent( const int theId )
1447 {
1448   return myFilters.find( theId ) != myFilters.end();
1449 }
1450
1451 /*!Remove filter with id \a theId.
1452  *\param theId - filter id.
1453  */
1454 void  VTKViewer_InteractorStyle::RemoveFilter( const int theId )
1455 {
1456   if ( IsFilterPresent( theId ) )
1457     myFilters.erase( theId );
1458 }
1459
1460 /*!Checks: is valid cell(node) with id \a theId in actor \a theActor.
1461  *\param theActor - VTKViewer_Actor pointer.
1462  *\param theId    - cell id.
1463  *\param theIsNode - boolean flag, if true - node, else - cell.
1464  */
1465 bool VTKViewer_InteractorStyle::IsValid( VTKViewer_Actor* theActor,
1466                                                const int     theId,
1467                                                const bool    theIsNode )
1468 {
1469   std::map<int, Handle(VTKViewer_Filter)>::const_iterator anIter;
1470   for ( anIter = myFilters.begin(); anIter != myFilters.end(); ++anIter )
1471   {
1472     const Handle(VTKViewer_Filter)& aFilter = anIter->second;
1473     if ( theIsNode == aFilter->IsNodeFilter() &&
1474          !aFilter->IsValid( theActor, theId ) )
1475       return false;
1476   }
1477   return true;
1478 }
1479
1480 /*!Gets filter handle by filter id \a theId.*/
1481 Handle(VTKViewer_Filter) VTKViewer_InteractorStyle::GetFilter( const int theId )
1482 {
1483   return IsFilterPresent( theId ) ? myFilters[ theId ] : Handle(VTKViewer_Filter)();
1484 }
1485
1486 /*!Increment pan.
1487  *\param incrX - X coordinate increment.
1488  *\param incrY - Y coordinate increment.
1489  */
1490 void VTKViewer_InteractorStyle::IncrementalPan( const int incrX, const int incrY )
1491 {
1492   this->PanXY( incrX, incrY, 0, 0 );
1493 }
1494
1495 /*!Increment zoom.
1496  *\param incr - zoom increment.
1497  */
1498 void VTKViewer_InteractorStyle::IncrementalZoom( const int incr )
1499 {
1500   this->DollyXY( incr, incr );
1501 }
1502
1503 /*!Increment rotate.
1504  *\param incrX - X coordinate increment.
1505  *\param incrY - Y coordinate increment.
1506  */
1507 void VTKViewer_InteractorStyle::IncrementalRotate( const int incrX, const int incrY )
1508 {
1509   this->RotateXY( incrX, -incrY );
1510 }
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