src/XGUI/XGUI_Viewer.cpp

   1 #include "XGUI_Viewer.h"
   2 #include "XGUI_MainWindow.h"
   3 #include "XGUI_ViewWindow.h"
   4 #include "XGUI_ViewPort.h"
   5
   6 #include <QMdiArea>
   7 #include <QMdiSubWindow>
   8 #include <QApplication>
   9
  10 #include <V3d_View.hxx>
  11
  12 #include <Aspect_DisplayConnection.hxx>
  13 #include <Graphic3d.hxx>
  14 #include <Graphic3d_GraphicDriver.hxx>
  15 #include <Geom_Axis2Placement.hxx>
  16 #include <AIS_Drawer.hxx>
  17 #include <Prs3d_DatumAspect.hxx>
  18 #include <Prs3d_LineAspect.hxx>
  19 #include <V3d_View.hxx>
  20 #include <Visual3d_View.hxx>
  21 #include <AIS_ListOfInteractive.hxx>
  22 #include <AIS_ListIteratorOfListOfInteractive.hxx>
  23 #include <AIS_Shape.hxx>
  24
  25 #include <QMouseEvent>
  26
  27 #ifdef WIN32
  28 #include <WNT_Window.hxx>
  29 #else
  30 #include <Xw_Window.hxx>
  31 #endif
  32
  33 XGUI_Viewer::InteractionStyle2StatesMap XGUI_Viewer::myStateMap;
  34 XGUI_Viewer::InteractionStyle2ButtonsMap XGUI_Viewer::myButtonMap;
  35 static bool isInitialized = false;
  36
  37 /*!
  38  Creates viewer 3d [ static ]
  39  */
  40 Handle(V3d_Viewer) CreateViewer(const Standard_ExtString name, const Standard_CString displayName,
  41                                 const Standard_CString domain, const Standard_Real viewSize,
  42                                 const V3d_TypeOfOrientation viewProjection,
  43                                 const Standard_Boolean computedMode,
  44                                 const Standard_Boolean defaultComputedMode)
  45 {
  46   static Handle(Graphic3d_GraphicDriver) aGraphicDriver;
  47   if (aGraphicDriver.IsNull()) {
  48     Handle(Aspect_DisplayConnection) aDisplayConnection;
  49 #ifndef WIN32
  50     aDisplayConnection = new Aspect_DisplayConnection( displayName );
  51 #else
  52     aDisplayConnection = new Aspect_DisplayConnection();
  53 #endif
  54     aGraphicDriver = Graphic3d::InitGraphicDriver(aDisplayConnection);
  55   }
  56
  57   return new V3d_Viewer(aGraphicDriver, name, domain, viewSize, viewProjection, Quantity_NOC_GRAY30,
  58                         V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT, computedMode, defaultComputedMode,
  59                         V3d_TEX_NONE);
  60 }
  61
  62 // VSR: Uncomment below line to allow texture background support in OCC viewer
  63 #define OCC_ENABLE_TEXTURED_BACKGROUND
  64
  65 /*!
  66  Get data for supported background modes: gradient types, identifiers and supported image formats
  67  */
  68 QString XGUI_Viewer::backgroundData(QStringList& gradList, QIntList& idList, QIntList& txtList)
  69 {
  70   gradList << tr("Horizontal gradient") << tr("Vertical gradient")
  71       << tr("First diagonal gradient") << tr("Second diagonal gradient")
  72       << tr("First corner gradient") << tr("Second corner gradient")
  73       << tr("Third corner gradient") << tr("Fourth corner gradient");
  74   idList << XGUI::HorizontalGradient << XGUI::VerticalGradient << XGUI::Diagonal1Gradient
  75       << XGUI::Diagonal2Gradient << XGUI::Corner1Gradient << XGUI::Corner2Gradient
  76       << XGUI::Corner3Gradient << XGUI::Corner4Gradient;
  77 #ifdef OCC_ENABLE_TEXTURED_BACKGROUND
  78   txtList << XGUI::CenterTexture << XGUI::TileTexture << XGUI::StretchTexture;
  79 #endif
  80   return tr("Image files (*.bmp *.gif *.pix *.xwd *.rgb *.rs)");
  81 }
  82
  83 XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron)
  84     : QObject(theParent),
  85     myMainWindow(theParent),
  86     myPreselectionEnabled(true),
  87     mySelectionEnabled(true),
  88     myMultiSelectionEnabled(true),
  89     myIsRelative(true),
  90     myInteractionStyle(XGUI::STANDARD),
  91     myTrihedronSize(100),
  92     myActiveView(0)
  93 {
  94   if (!isInitialized) {
  95     isInitialized = true;
  96
  97     // standard interaction style
  98     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::ControlModifier;
  99     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
 100
 101     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN] = Qt::ControlModifier;
 102     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN] = Qt::MidButton;
 103
 104     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::ControlModifier;
 105     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 106
 107     XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::ControlModifier;
 108     XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 109
 110     // "key free" interaction style
 111     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::NoModifier;
 112     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 113
 114     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::NoModifier;
 115     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::MidButton;
 116
 117     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::NoModifier;
 118     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
 119
 120     XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoModifier; // unused
 121     XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton; // unused
 122   }
 123
 124   // init CasCade viewers
 125   myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(), "", "", 1000.0,
 126                              V3d_XposYnegZpos, Standard_True, Standard_True);
 127   myV3dViewer->SetDefaultLights();
 128
 129   // init selector
 130   myAISContext = new AIS_InteractiveContext(myV3dViewer);
 131   myAISContext->SelectionColor(Quantity_NOC_WHITE);
 132
 133   // display isoline on planar faces (box for ex.)
 134   myAISContext->IsoOnPlane(true);
 135
 136   if (DisplayTrihedron) {
 137     Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 138     myTrihedron = new AIS_Trihedron(anAxis);
 139     myTrihedron->SetInfiniteState( Standard_True);
 140
 141     Quantity_Color Col(193 / 255., 205 / 255., 193 / 255., Quantity_TOC_RGB);
 142     myTrihedron->SetArrowColor(Col.Name());
 143     myTrihedron->SetSize(myTrihedronSize);
 144     Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 145     if (drawer->HasDatumAspect()) {
 146       Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 147       daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 148       daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 149       daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 150     }
 151   }
 152   // set zooming style to standard
 153   //myZoomingStyle = 0;
 154
 155   QMdiArea* aMDI = myMainWindow->mdiArea();
 156   connect(aMDI, SIGNAL(subWindowActivated(QMdiSubWindow*)), this, SLOT(onWindowActivated(QMdiSubWindow*)));
 157
 158 }
 159
 160 XGUI_Viewer::~XGUI_Viewer(void)
 161 {
 162   myAISContext.Nullify();
 163   myV3dViewer.Nullify();
 164 }
 165
 166 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 167 {
 168   // create view frame
 169   XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 170   // get main view window (created by view frame)
 171   //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 172   // initialize main view window
 173   //initView( vw );
 174   // set default background for view window
 175   //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 176   //// connect signal from viewport
 177     //connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 178     //connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 179     if (myViews.size() == 0)
 180         setTrihedronShown(true);
 181
 182     view->setBackground(XGUI_ViewBackground(XGUI::VerticalGradient, Qt::white, QColor(Qt::blue).lighter()));
 183   //view->setBackground(XGUI_ViewBackground(Qt::black));
 184
 185   QMdiArea* aMDI = myMainWindow->mdiArea();
 186   QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 187     addView(aWnd);
 188   aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
 189   aWnd->show();
 190   return aWnd;
 191 }
 192
 193 void XGUI_Viewer::setLocalSelection(const AIS_ListOfInteractive& theAISObjects, const int theMode,
 194                                     const bool isUpdateViewer)
 195 {
 196   Handle(AIS_InteractiveContext) ic = AISContext();
 197
 198   // Open local context if there is no one
 199   bool allObjects = false; // calculate by AIS shape
 200   if (!ic->HasOpenedContext()) {
 201     ic->ClearCurrents(false);
 202     ic->OpenLocalContext(allObjects, true, true);
 203   }
 204
 205   // Activate selection of objects from prs
 206   AIS_ListIteratorOfListOfInteractive aIter(theAISObjects);
 207   for (; aIter.More(); aIter.Next()) {
 208     Handle(AIS_InteractiveObject) anAIS = aIter.Value();
 209     if (!anAIS.IsNull()) {
 210       if (anAIS->IsKind(STANDARD_TYPE(AIS_Shape))) {
 211         ic->Load(anAIS, -1, false);
 212         ic->Activate(anAIS, AIS_Shape::SelectionMode((TopAbs_ShapeEnum)theMode));
 213       }
 214       else if (anAIS->DynamicType() != STANDARD_TYPE(AIS_Trihedron)) {
 215         ic->Load(anAIS, -1, false);
 216         ic->Activate(anAIS, theMode);
 217       }
 218     }
 219   }
 220   if (isUpdateViewer)
 221     ic->UpdateCurrentViewer();
 222 }
 223
 224 void XGUI_Viewer::setGlobalSelection(const bool isUpdateViewer)
 225 {
 226   Handle(AIS_InteractiveContext) ic = AISContext();
 227   if (!ic.IsNull()) {
 228     ic->CloseAllContexts(false);
 229     if (isUpdateViewer)
 230       ic->UpdateCurrentViewer();
 231   }
 232 }
 233
 234 void XGUI_Viewer::getSelectedObjects(AIS_ListOfInteractive& theList)
 235 {
 236   theList.Clear();
 237   for (myAISContext->InitSelected(); myAISContext->MoreSelected(); myAISContext->NextSelected())
 238     theList.Append(myAISContext->SelectedInteractive());
 239 }
 240
 241 void XGUI_Viewer::getSelectedShapes(NCollection_List<TopoDS_Shape>& theList)
 242 {
 243   Handle(AIS_InteractiveContext) ic = AISContext();
 244
 245   for (ic->InitSelected(); ic->MoreSelected(); ic->NextSelected()) {
 246     TopoDS_Shape aShape = ic->SelectedShape();
 247     if (!aShape.IsNull())
 248       theList.Append(aShape);
 249   }
 250 }
 251
 252 void XGUI_Viewer::setObjectsSelected(const AIS_ListOfInteractive& theList)
 253 {
 254   AIS_ListIteratorOfListOfInteractive aIt;
 255   for (aIt.Initialize(theList); aIt.More(); aIt.Next())
 256     myAISContext->AddOrRemoveSelected(aIt.Value(), false);
 257   myAISContext->UpdateCurrentViewer();
 258 }
 259
 260 /*! Sets hot button
 261  *\param theOper - hot operation
 262  *\param theState - adding state to state map operations.
 263  *\param theButton - adding state to button map operations.
 264  */
 265 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 266                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 267                                Qt::MouseButtons theButton)
 268 {
 269   myStateMap[theInteractionStyle][theOper] = theState;
 270   myButtonMap[theInteractionStyle][theOper] = theButton;
 271 }
 272
 273 /*! Gets hot button for operation \a theOper.
 274  *\param theOper - input hot operation
 275  *\param theState - output state from state map operations.
 276  *\param theButton - output state from button map operations.
 277  */
 278 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 279                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 280                                Qt::MouseButtons& theButton)
 281 {
 282   theState = myStateMap[theInteractionStyle][theOper];
 283   theButton = myButtonMap[theInteractionStyle][theOper];
 284 }
 285
 286 void XGUI_Viewer::setViewProjection(double theX, double theY, double theZ)
 287 {
 288   XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(myActiveView->widget());
 289   if (aWindow) {
 290     Handle(V3d_View) aView3d = aWindow->viewPort()->getView();
 291     if ( !aView3d.IsNull() )
 292       aView3d->SetProj(theX, theY, theZ);
 293     aWindow->viewPort()->fitAll();
 294   }
 295 }
 296
 297 /*!
 298  Changes visibility of trihedron to opposite
 299  */
 300 void XGUI_Viewer::toggleTrihedron()
 301 {
 302   setTrihedronShown(!isTrihedronVisible());
 303 }
 304
 305 /*!
 306  \return true if trihedron is visible
 307  */
 308 bool XGUI_Viewer::isTrihedronVisible() const
 309 {
 310   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 311 }
 312
 313 /*!
 314  Sets visibility state of trihedron
 315  \param on - new state
 316  */
 317
 318 void XGUI_Viewer::setTrihedronShown(bool on)
 319 {
 320   if (myTrihedron.IsNull())
 321     return;
 322
 323   if (on) {
 324     myAISContext->Display(myTrihedron);
 325     myAISContext->Deactivate(myTrihedron);
 326   } else {
 327     myAISContext->Erase(myTrihedron);
 328   }
 329 }
 330
 331 /*!
 332  \return trihedron size
 333  */
 334 double XGUI_Viewer::trihedronSize() const
 335 {
 336   double sz = 0;
 337   if (!myTrihedron.IsNull())
 338     sz = myTrihedron->Size();
 339   return sz;
 340 }
 341
 342 /*!
 343  Changes trihedron size
 344  \param sz - new size
 345  */
 346 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 347 {
 348   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 349     myTrihedronSize = sz;
 350     myIsRelative = isRelative;
 351     updateTrihedron();
 352   }
 353 }
 354
 355 /*!
 356  * Update the size of the trihedron
 357  */
 358 void XGUI_Viewer::updateTrihedron()
 359 {
 360   if (myTrihedron.IsNull())
 361     return;
 362
 363   if (myIsRelative) {
 364     double newSz, oldSz;
 365
 366     if (computeTrihedronSize(newSz, oldSz))
 367       myTrihedron->SetSize(newSz);
 368
 369   } else if (myTrihedron->Size() != myTrihedronSize) {
 370     myTrihedron->SetSize(myTrihedronSize);
 371   }
 372 }
 373
 374 /*!
 375  Get new and current trihedron size corresponding to the current model size
 376  */
 377 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 378 {
 379   theNewSize = 100;
 380   theSize = 100;
 381
 382   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 383   Handle(V3d_Viewer) viewer = v3dViewer();
 384   viewer->InitActiveViews();
 385   if (!viewer->MoreActiveViews())
 386     return false;
 387
 388   Handle(V3d_View) view3d = viewer->ActiveView();
 389   //SRN: END of fix
 390
 391   if (view3d.IsNull())
 392     return false;
 393
 394   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 395   double aMaxSide;
 396
 397   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 398
 399   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 400       || Ymax == RealLast() || Zmax == RealLast())
 401     return false;
 402
 403   aMaxSide = Xmax - Xmin;
 404   if (aMaxSide < Ymax - Ymin)
 405     aMaxSide = Ymax - Ymin;
 406   if (aMaxSide < Zmax - Zmin)
 407     aMaxSide = Zmax - Zmin;
 408
 409   // IPAL21687
 410   // The boundary box of the view may be initialized but nullified
 411   // (case of infinite objects)
 412   if (aMaxSide < Precision::Confusion())
 413     return false;
 414
 415   static float EPS = (float)5.0E-3;
 416   theSize = trihedron()->Size();
 417   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 418
 419   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 420 }
 421
 422 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 423 {
 424     if ( !theView )
 425         return;
 426
 427     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 428     removeView( theView );
 429
 430     // if this is last view
 431     if (myViews.size() == 0) {
 432         Standard_Integer aViewsNb = 0;
 433         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 434             ++aViewsNb;
 435         if ( aViewsNb < 2 ) {
 436             //clean up presentations before last view is closed
 437             myAISContext->RemoveAll(Standard_False);
 438         }
 439     }
 440 }
 441
 442 /*!Remove view window \a theView from view manager.
 443  *And close the last view, if it has \a theView.
 444 */
 445 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 446 {
 447     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 448
 449     aWindow->disconnect( this );
 450     myViews.removeAt( myViews.indexOf( theView ) );
 451     if ( myActiveView == theView )
 452         myActiveView = 0;
 453     if ( myViews.size() == 0 )
 454         emit lastViewClosed();
 455 }
 456
 457
 458 /*void XGUI_Viewer::onViewMapped()
 459 {
 460   setTrihedronShown(true);
 461 }*/
 462
 463
 464 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 465 {
 466     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 467
 468     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 469             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 470
 471     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 472             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 473
 474     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 475             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 476
 477     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 478             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 479
 480     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 481             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 482
 483     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 484             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 485
 486     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 487             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 488
 489     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 490             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 491
 492 //    connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 493 //            this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 494
 495     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 496             this, SLOT(onMouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 497
 498     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 499             this, SLOT(onMouseReleased(XGUI_ViewWindow*, QMouseEvent*)));
 500
 501     myViews.append(theView);
 502 }
 503
 504 /*!
 505     Emit activated for view \a view.
 506 */
 507 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 508 {
 509   if (view && (view != myActiveView) && (!view->isMinimized())) {
 510     myActiveView = view;
 511     ((XGUI_ViewWindow*)myActiveView->widget())->windowActivated();
 512     QList<QMdiSubWindow*>::iterator aIt;
 513     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 514       if ((*aIt) != myActiveView) {
 515         ((XGUI_ViewWindow*)(*aIt)->widget())->windowDeactivated();
 516       }
 517     }
 518   }
 519 }
 520
 521
 522 void XGUI_Viewer::onWindowMinimized(QMdiSubWindow* theWnd)
 523 {
 524   if (myActiveView == theWnd) {
 525     myActiveView = 0;
 526     QList<QMdiSubWindow*>::iterator aIt;
 527     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 528       if (!(*aIt)->widget()->isMinimized()) {
 529         (*aIt)->raise();
 530         onWindowActivated(*aIt);
 531         break;
 532       }
 533     }
 534   }
 535 }
 536
 537 /*!
 538   SLOT: called on mouse move, processes hilighting
 539 */
 540 void XGUI_Viewer::onMouseMove(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 541 {
 542   XGUI_ViewPort* aViewPort = theWindow->viewPort();
 543   Handle(V3d_View) aView3d = aViewPort->getView();
 544
 545   if ( !aView3d.IsNull() )
 546     myAISContext->MoveTo(theEvent->x(), theEvent->y(), aView3d);
 547 }
 548
 549 /*!
 550   SLOT: called on mouse button release, finishes selection
 551 */
 552 void XGUI_Viewer::onMouseReleased(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 553 {
 554   myAISContext->Select();
 555
 556   emit selectionChanged();
 557 }