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
   9 #include <V3d_View.hxx>
  10
  11 #include <Aspect_DisplayConnection.hxx>
  12 #include <Graphic3d.hxx>
  13 #include <Graphic3d_GraphicDriver.hxx>
  14 #include <Geom_Axis2Placement.hxx>
  15 #include <AIS_Drawer.hxx>
  16 #include <Prs3d_DatumAspect.hxx>
  17 #include <Prs3d_LineAspect.hxx>
  18 #include <V3d_View.hxx>
  19 #include <Visual3d_View.hxx>
  20
  21 #ifdef WIN32
  22 #include <WNT_Window.hxx>
  23 #else
  24 #include <Xw_Window.hxx>
  25 #endif
  26
  27 XGUI_Viewer::InteractionStyle2StatesMap XGUI_Viewer::myStateMap;
  28 XGUI_Viewer::InteractionStyle2ButtonsMap XGUI_Viewer::myButtonMap;
  29 static bool isInitialized = false;
  30
  31
  32 /*!
  33     Creates viewer 3d [ static ]
  34 */
  35 Handle(V3d_Viewer) CreateViewer( const Standard_ExtString name,
  36                                                      const Standard_CString displayName,
  37                                                      const Standard_CString domain,
  38                                                      const Standard_Real viewSize ,
  39                                                      const V3d_TypeOfOrientation viewProjection,
  40                                                      const Standard_Boolean computedMode,
  41                                                      const Standard_Boolean defaultComputedMode )
  42 {
  43   static Handle(Graphic3d_GraphicDriver) aGraphicDriver;
  44   if (aGraphicDriver.IsNull())
  45   {
  46     Handle(Aspect_DisplayConnection) aDisplayConnection;
  47 #ifndef WIN32
  48     aDisplayConnection = new Aspect_DisplayConnection( displayName );
  49 #else
  50     aDisplayConnection = new Aspect_DisplayConnection();
  51 #endif
  52     aGraphicDriver = Graphic3d::InitGraphicDriver( aDisplayConnection );
  53   }
  54
  55   return new V3d_Viewer( aGraphicDriver, name, domain, viewSize, viewProjection,
  56                          Quantity_NOC_GRAY30, V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT,
  57                          computedMode, defaultComputedMode, V3d_TEX_NONE );
  58 }
  59
  60
  61 // VSR: Uncomment below line to allow texture background support in OCC viewer
  62 #define OCC_ENABLE_TEXTURED_BACKGROUND
  63
  64 /*!
  65   Get data for supported background modes: gradient types, identifiers and supported image formats
  66 */
  67 QString XGUI_Viewer::backgroundData( QStringList& gradList, QIntList& idList, QIntList& txtList )
  68 {
  69   gradList << tr("GT_HORIZONTALGRADIENT")    << tr("GT_VERTICALGRADIENT")       <<
  70               tr("GT_FIRSTDIAGONALGRADIENT") << tr("GT_SECONDDIAGONALGRADIENT") <<
  71               tr("GT_FIRSTCORNERGRADIENT")   << tr("GT_SECONDCORNERGRADIENT")   <<
  72               tr("GT_THIRDCORNERGRADIENT")   << tr("GT_FORTHCORNERGRADIENT");
  73   idList   << XGUI::HorizontalGradient << XGUI::VerticalGradient  <<
  74               XGUI::Diagonal1Gradient  << XGUI::Diagonal2Gradient <<
  75               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("BG_IMAGE_FILES");
  81 }
  82
  83
  84
  85 XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron) :
  86 QObject(theParent),
  87     myMainWindow(theParent),
  88     myPreselectionEnabled(true),
  89     mySelectionEnabled(true),
  90     myMultiSelectionEnabled(true),
  91     myIsRelative(true),
  92     myInteractionStyle(XGUI::STANDARD),
  93     myTrihedronSize(100),
  94     myActiveView(0)
  95 {
  96     if ( !isInitialized ) {
  97         isInitialized = true;
  98
  99         // standard interaction style
 100         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM]  = Qt::ControlModifier;
 101         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
 102
 103         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN]   = Qt::ControlModifier;
 104         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN]  = Qt::MidButton;
 105
 106         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE]  = Qt::ControlModifier;
 107         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 108
 109         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA]  = Qt::ControlModifier;
 110         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 111
 112         // "key free" interaction style
 113         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM]  = Qt::NoModifier;
 114         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 115
 116         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN]   = Qt::NoModifier;
 117         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN]  = Qt::MidButton;
 118
 119         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE]  = Qt::NoModifier;
 120         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
 121
 122         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA]  = Qt::NoModifier; // unused
 123         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton;   // unused
 124     }
 125
 126     // init CasCade viewers
 127     myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(),
 128                                                    "", "", 1000.0, V3d_XposYnegZpos, Standard_True, Standard_True );
 129     myV3dViewer->SetDefaultLights();
 130
 131     // init selector
 132     myAISContext = new AIS_InteractiveContext( myV3dViewer );
 133     myAISContext->SelectionColor( Quantity_NOC_WHITE );
 134
 135     // display isoline on planar faces (box for ex.)
 136     myAISContext->IsoOnPlane( true );
 137
 138     if ( DisplayTrihedron )  {
 139         Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 140         myTrihedron = new AIS_Trihedron(anAxis);
 141         myTrihedron->SetInfiniteState( Standard_True );
 142
 143         Quantity_Color Col(193/255., 205/255., 193/255., Quantity_TOC_RGB);
 144         myTrihedron->SetArrowColor( Col.Name() );
 145         myTrihedron->SetSize(myTrihedronSize);
 146         Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 147         if (drawer->HasDatumAspect()) {
 148             Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 149             daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 150             daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 151             daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 152         }
 153     }
 154     // set zooming style to standard
 155     //myZoomingStyle = 0;
 156 }
 157
 158
 159 XGUI_Viewer::~XGUI_Viewer(void)
 160 {
 161     myAISContext.Nullify();
 162     myV3dViewer.Nullify();
 163 }
 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::green, Qt::blue));
 183
 184     QMdiArea* aMDI = myMainWindow->mdiArea();
 185     QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 186     addView(aWnd);
 187     aWnd->setGeometry(0,0, aMDI->width() / 2, aMDI->height() / 2);
 188     aWnd->show();
 189     return aWnd;
 190 }
 191
 192 /*! Sets hot button
 193  *\param theOper - hot operation
 194  *\param theState - adding state to state map operations.
 195  *\param theButton - adding state to button map operations.
 196  */
 197 void XGUI_Viewer::setHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 198                                    Qt::KeyboardModifiers theState, Qt::MouseButtons theButton )
 199 {
 200     myStateMap[theInteractionStyle][theOper]  = theState;
 201     myButtonMap[theInteractionStyle][theOper] = theButton;
 202 }
 203
 204 /*! Gets hot button for operation \a theOper.
 205  *\param theOper - input hot operation
 206  *\param theState - output state from state map operations.
 207  *\param theButton - output state from button map operations.
 208 */
 209 void XGUI_Viewer::getHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 210                                    Qt::KeyboardModifiers& theState, Qt::MouseButtons& theButton )
 211 {
 212     theState  = myStateMap[theInteractionStyle][theOper];
 213     theButton = myButtonMap[theInteractionStyle][theOper];
 214 }
 215
 216 /*!
 217   Changes visibility of trihedron to opposite
 218 */
 219 void XGUI_Viewer::toggleTrihedron()
 220 {
 221     setTrihedronShown( !isTrihedronVisible() );
 222 }
 223
 224 /*!
 225   \return true if trihedron is visible
 226 */
 227 bool XGUI_Viewer::isTrihedronVisible() const
 228 {
 229     return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed( myTrihedron );
 230 }
 231
 232 /*!
 233   Sets visibility state of trihedron
 234   \param on - new state
 235 */
 236
 237 void XGUI_Viewer::setTrihedronShown( const bool on )
 238 {
 239     if ( myTrihedron.IsNull() )
 240         return;
 241
 242     if ( on ) {
 243         myAISContext->Display( myTrihedron );
 244         myAISContext->Deactivate(myTrihedron);
 245     } else {
 246         myAISContext->Erase( myTrihedron );
 247     }
 248 }
 249
 250 /*!
 251   \return trihedron size
 252 */
 253 double XGUI_Viewer::trihedronSize() const
 254 {
 255     double sz = 0;
 256     if ( !myTrihedron.IsNull() )
 257         sz = myTrihedron->Size();
 258     return sz;
 259 }
 260
 261 /*!
 262   Changes trihedron size
 263   \param sz - new size
 264 */
 265 void XGUI_Viewer::setTrihedronSize( const double sz, bool isRelative )
 266 {
 267     if ( myTrihedronSize != sz || isRelative != myIsRelative) {
 268         myTrihedronSize = sz;
 269         myIsRelative = isRelative;
 270         updateTrihedron();
 271     }
 272 }
 273
 274 /*!
 275  * Update the size of the trihedron
 276  */
 277 void XGUI_Viewer::updateTrihedron()
 278 {
 279     if ( myTrihedron.IsNull() )
 280         return;
 281
 282     if(myIsRelative){
 283         double newSz, oldSz;
 284
 285         if(computeTrihedronSize(newSz, oldSz))
 286             myTrihedron->SetSize(newSz);
 287
 288     } else if(myTrihedron->Size() != myTrihedronSize) {
 289         myTrihedron->SetSize(myTrihedronSize);
 290     }
 291 }
 292
 293 /*!
 294   Get new and current trihedron size corresponding to the current model size
 295 */
 296 bool XGUI_Viewer::computeTrihedronSize( double& theNewSize, double& theSize )
 297 {
 298   theNewSize = 100;
 299   theSize = 100;
 300
 301   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 302   Handle(V3d_Viewer) viewer = v3dViewer();
 303   viewer->InitActiveViews();
 304   if(!viewer->MoreActiveViews()) return false;
 305
 306   Handle(V3d_View) view3d = viewer->ActiveView();
 307   //SRN: END of fix
 308
 309   if ( view3d.IsNull() )
 310     return false;
 311
 312   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 313   double aMaxSide;
 314
 315   view3d->View()->MinMaxValues( Xmin, Ymin, Zmin, Xmax, Ymax, Zmax );
 316
 317   if ( Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() ||
 318        Xmax == RealLast()  || Ymax == RealLast()  || Zmax == RealLast() )
 319     return false;
 320
 321   aMaxSide = Xmax - Xmin;
 322   if ( aMaxSide < Ymax -Ymin ) aMaxSide = Ymax -Ymin;
 323   if ( aMaxSide < Zmax -Zmin ) aMaxSide = Zmax -Zmin;
 324
 325   // IPAL21687
 326   // The boundary box of the view may be initialized but nullified
 327   // (case of infinite objects)
 328   if ( aMaxSide < Precision::Confusion() )
 329     return false;
 330
 331   static float EPS = 5.0E-3;
 332   theSize = trihedron()->Size();
 333   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 334
 335   return fabs( theNewSize - theSize ) > theSize * EPS ||
 336          fabs( theNewSize - theSize) > theNewSize * EPS;
 337 }
 338
 339
 340 void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
 341 {
 342     if ( !theView )
 343         return;
 344
 345     emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
 346     removeView( theView );
 347
 348     // if this is last view
 349     if (myViews.size() == 0) {
 350         Standard_Integer aViewsNb = 0;
 351         for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 352             ++aViewsNb;
 353         if ( aViewsNb < 2 ) {
 354             //clean up presentations before last view is closed
 355             myAISContext->RemoveAll(Standard_False);
 356         }
 357     }
 358 }
 359
 360 /*!Remove view window \a theView from view manager.
 361  *And close the last view, if it has \a theView.
 362 */
 363 void XGUI_Viewer::removeView( QMdiSubWindow* theView )
 364 {
 365     XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
 366
 367     aWindow->disconnect( this );
 368     myViews.removeAt( myViews.indexOf( theView ) );
 369     if ( myActiveView == theView )
 370         myActiveView = 0;
 371     if ( myViews.size() == 0 )
 372         emit lastViewClosed();
 373 }
 374
 375
 376 /*void XGUI_Viewer::onViewMapped()
 377 {
 378   setTrihedronShown( true );
 379 }*/
 380
 381
 382 void XGUI_Viewer::addView(QMdiSubWindow* theView)
 383 {
 384     XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
 385
 386     connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
 387             this,    SLOT(onViewClosed(QMdiSubWindow*)));
 388
 389     connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
 390             this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
 391
 392     connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
 393             this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
 394
 395     connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
 396             this,    SIGNAL(mouseRelease(XGUI_ViewWindow*, QMouseEvent*)));
 397
 398     connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
 399             this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
 400
 401     connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
 402             this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
 403
 404     connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
 405             this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
 406
 407     connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
 408             this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
 409
 410     connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
 411             this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
 412
 413     myViews.append(theView);
 414 }
 415
 416 /*!
 417     Emit activated for view \a view.
 418 */
 419 void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
 420 {
 421     myActiveView = view;
 422 }