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::setObjectsSelected(const AIS_ListOfInteractive& theList)
 242 {
 243   AIS_ListIteratorOfListOfInteractive aIt;
 244   for (aIt.Initialize(theList); aIt.More(); aIt.Next())
 245     myAISContext->AddOrRemoveSelected(aIt.Value(), false);
 246   myAISContext->UpdateCurrentViewer();
 247 }
 248
 249 /*! Sets hot button
 250  *\param theOper - hot operation
 251  *\param theState - adding state to state map operations.
 252  *\param theButton - adding state to button map operations.
 253  */
 254 void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
 255                                XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
 256                                Qt::MouseButtons theButton)
 257 {
 258   myStateMap[theInteractionStyle][theOper] = theState;
 259   myButtonMap[theInteractionStyle][theOper] = theButton;
 260 }
 261
 262 /*! Gets hot button for operation \a theOper.
 263  *\param theOper - input hot operation
 264  *\param theState - output state from state map operations.
 265  *\param theButton - output state from button map operations.
 266  */
 267 void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
 268                                XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
 269                                Qt::MouseButtons& theButton)
 270 {
 271   theState = myStateMap[theInteractionStyle][theOper];
 272   theButton = myButtonMap[theInteractionStyle][theOper];
 273 }
 274
 275 /*!
 276  Changes visibility of trihedron to opposite
 277  */
 278 void XGUI_Viewer::toggleTrihedron()
 279 {
 280   setTrihedronShown(!isTrihedronVisible());
 281 }
 282
 283 /*!
 284  \return true if trihedron is visible
 285  */
 286 bool XGUI_Viewer::isTrihedronVisible() const
 287 {
 288   return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 289 }
 290
 291 /*!
 292  Sets visibility state of trihedron
 293  \param on - new state
 294  */
 295
 296 void XGUI_Viewer::setTrihedronShown(bool on)
 297 {
 298   if (myTrihedron.IsNull())
 299     return;
 300
 301   if (on) {
 302     myAISContext->Display(myTrihedron);
 303     myAISContext->Deactivate(myTrihedron);
 304   } else {
 305     myAISContext->Erase(myTrihedron);
 306   }
 307 }
 308
 309 /*!
 310  \return trihedron size
 311  */
 312 double XGUI_Viewer::trihedronSize() const
 313 {
 314   double sz = 0;
 315   if (!myTrihedron.IsNull())
 316     sz = myTrihedron->Size();
 317   return sz;
 318 }
 319
 320 /*!
 321  Changes trihedron size
 322  \param sz - new size
 323  */
 324 void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 325 {
 326   if (myTrihedronSize != sz || isRelative != myIsRelative) {
 327     myTrihedronSize = sz;
 328     myIsRelative = isRelative;
 329     updateTrihedron();
 330   }
 331 }
 332
 333 /*!
 334  * Update the size of the trihedron
 335  */
 336 void XGUI_Viewer::updateTrihedron()
 337 {
 338   if (myTrihedron.IsNull())
 339     return;
 340
 341   if (myIsRelative) {
 342     double newSz, oldSz;
 343
 344     if (computeTrihedronSize(newSz, oldSz))
 345       myTrihedron->SetSize(newSz);
 346
 347   } else if (myTrihedron->Size() != myTrihedronSize) {
 348     myTrihedron->SetSize(myTrihedronSize);
 349   }
 350 }
 351
 352 /*!
 353  Get new and current trihedron size corresponding to the current model size
 354  */
 355 bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 356 {
 357   theNewSize = 100;
 358   theSize = 100;
 359
 360   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 361   Handle(V3d_Viewer) viewer = v3dViewer();
 362   viewer->InitActiveViews();
 363   if (!viewer->MoreActiveViews())
 364     return false;
 365
 366   Handle(V3d_View) view3d = viewer->ActiveView();
 367   //SRN: END of fix
 368
 369   if (view3d.IsNull())
 370     return false;
 371
 372   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 373   double aMaxSide;
 374
 375   view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 376
 377   if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
 378       || Ymax == RealLast() || Zmax == RealLast())
 379     return false;
 380
 381   aMaxSide = Xmax - Xmin;
 382   if (aMaxSide < Ymax - Ymin)
 383     aMaxSide = Ymax - Ymin;
 384   if (aMaxSide < Zmax - Zmin)
 385     aMaxSide = Zmax - Zmin;
 386
 387   // IPAL21687
 388   // The boundary box of the view may be initialized but nullified
 389   // (case of infinite objects)
 390   if (aMaxSide < Precision::Confusion())
 391     return false;
 392
 393   static float EPS = (float)5.0E-3;
 394   theSize = trihedron()->Size();
 395   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 396
 397   return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
 398 }
 399
 400 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 401 {
 402     if ( !theView )
 403         return;
 404
 405     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 406     removeView( theView );
 407
 408     // if this is last view
 409     if (myViews.size() == 0) {
 410         Standard_Integer aViewsNb = 0;
 411         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 412             ++aViewsNb;
 413         if ( aViewsNb < 2 ) {
 414             //clean up presentations before last view is closed
 415             myAISContext->RemoveAll(Standard_False);
 416         }
 417     }
 418 }
 419
 420 /*!Remove view window \a theView from view manager.
 421  *And close the last view, if it has \a theView.
 422 */
 423 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 424 {
 425     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 426
 427     aWindow->disconnect( this );
 428     myViews.removeAt( myViews.indexOf( theView ) );
 429     if ( myActiveView == theView )
 430         myActiveView = 0;
 431     if ( myViews.size() == 0 )
 432         emit lastViewClosed();
 433 }
 434
 435
 436 /*void XGUI_Viewer::onViewMapped()
 437 {
 438   setTrihedronShown(true);
 439 }*/
 440
 441
 442 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 443 {
 444     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 445
 446     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 447             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 448
 449     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 450             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 451
 452     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 453             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 454
 455     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 456             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 457
 458     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 459             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 460
 461     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 462             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 463
 464     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 465             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 466
 467     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 468             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 469
 470 //    connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 471 //            this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 472
 473     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 474             this, SLOT(onMouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 475
 476     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 477             this, SLOT(onMouseReleased(XGUI_ViewWindow*, QMouseEvent*)));
 478
 479     myViews.append(theView);
 480 }
 481
 482 /*!
 483     Emit activated for view \a view.
 484 */
 485 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 486 {
 487   if (view && (view != myActiveView) && (!view->isMinimized())) {
 488     myActiveView = view;
 489     ((XGUI_ViewWindow*)myActiveView->widget())->windowActivated();
 490     QList<QMdiSubWindow*>::iterator aIt;
 491     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 492       if ((*aIt) != myActiveView) {
 493         ((XGUI_ViewWindow*)(*aIt)->widget())->windowDeactivated();
 494       }
 495     }
 496   }
 497 }
 498
 499
 500 void XGUI_Viewer::onWindowMinimized(QMdiSubWindow* theWnd)
 501 {
 502   if (myActiveView == theWnd) {
 503     myActiveView = 0;
 504     QList<QMdiSubWindow*>::iterator aIt;
 505     for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
 506       if (!(*aIt)->widget()->isMinimized()) {
 507         (*aIt)->raise();
 508         onWindowActivated(*aIt);
 509         break;
 510       }
 511     }
 512   }
 513 }
 514
 515 /*!
 516   SLOT: called on mouse move, processes hilighting
 517 */
 518 void XGUI_Viewer::onMouseMove(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 519 {
 520   XGUI_ViewPort* aViewPort = theWindow->viewPort();
 521   Handle(V3d_View) aView3d = aViewPort->getView();
 522
 523   if ( !aView3d.IsNull() )
 524     myAISContext->MoveTo(theEvent->x(), theEvent->y(), aView3d);
 525 }
 526
 527 /*!
 528   SLOT: called on mouse button release, finishes selection
 529 */
 530 void XGUI_Viewer::onMouseReleased(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 531 {
 532   myAISContext->Select();
 533
 534   emit selectionChanged();
 535 }