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 {
  95     if ( !isInitialized ) {
  96         isInitialized = true;
  97
  98         // standard interaction style
  99         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM]  = Qt::ControlModifier;
 100         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
 101
 102         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN]   = Qt::ControlModifier;
 103         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN]  = Qt::MidButton;
 104
 105         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE]  = Qt::ControlModifier;
 106         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 107
 108         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA]  = Qt::ControlModifier;
 109         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 110
 111         // "key free" interaction style
 112         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM]  = Qt::NoModifier;
 113         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 114
 115         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN]   = Qt::NoModifier;
 116         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN]  = Qt::MidButton;
 117
 118         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE]  = Qt::NoModifier;
 119         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
 120
 121         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA]  = Qt::NoModifier; // unused
 122         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton;   // unused
 123     }
 124
 125     // init CasCade viewers
 126     myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(),
 127                                                    "", "", 1000.0, V3d_XposYnegZpos, Standard_True, Standard_True );
 128     myV3dViewer->SetDefaultLights();
 129
 130     // init selector
 131     myAISContext = new AIS_InteractiveContext( myV3dViewer );
 132     myAISContext->SelectionColor( Quantity_NOC_WHITE );
 133
 134     // display isoline on planar faces (box for ex.)
 135     myAISContext->IsoOnPlane( true );
 136
 137     if ( DisplayTrihedron )  {
 138         Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 139         myTrihedron = new AIS_Trihedron(anAxis);
 140         myTrihedron->SetInfiniteState( Standard_True );
 141
 142         Quantity_Color Col(193/255., 205/255., 193/255., Quantity_TOC_RGB);
 143         myTrihedron->SetArrowColor( Col.Name() );
 144         myTrihedron->SetSize(myTrihedronSize);
 145         Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 146         if (drawer->HasDatumAspect()) {
 147             Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 148             daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 149             daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 150             daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 151         }
 152     }
 153     // set zooming style to standard
 154     //myZoomingStyle = 0;
 155 }
 156
 157
 158 XGUI_Viewer::~XGUI_Viewer(void)
 159 {
 160     myAISContext.Nullify();
 161     myV3dViewer.Nullify();
 162 }
 163
 164
 165 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 166 {
 167     // create view frame
 168     XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 169     // get main view window (created by view frame)
 170     //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 171     // initialize main view window
 172     //initView( vw );
 173     // set default background for view window
 174     //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 175     //// connect signal from viewport
 176     connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 177     connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 178
 179     view->setBackground(XGUI_ViewBackground(XGUI::VerticalGradient, Qt::green, Qt::blue));
 180
 181     QMdiArea* aMDI = myMainWindow->mdiArea();
 182     QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 183     aWnd->setGeometry(0,0, aMDI->width() / 2, aMDI->height() / 2);
 184     aWnd->show();
 185     return aWnd;
 186 }
 187
 188 /*! Sets hot button
 189  *\param theOper - hot operation
 190  *\param theState - adding state to state map operations.
 191  *\param theButton - adding state to button map operations.
 192  */
 193 void XGUI_Viewer::setHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 194                                    Qt::KeyboardModifiers theState, Qt::MouseButtons theButton )
 195 {
 196     myStateMap[theInteractionStyle][theOper]  = theState;
 197     myButtonMap[theInteractionStyle][theOper] = theButton;
 198 }
 199
 200 /*! Gets hot button for operation \a theOper.
 201  *\param theOper - input hot operation
 202  *\param theState - output state from state map operations.
 203  *\param theButton - output state from button map operations.
 204 */
 205 void XGUI_Viewer::getHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 206                                    Qt::KeyboardModifiers& theState, Qt::MouseButtons& theButton )
 207 {
 208     theState  = myStateMap[theInteractionStyle][theOper];
 209     theButton = myButtonMap[theInteractionStyle][theOper];
 210 }
 211
 212 /*!
 213   Changes visibility of trihedron to opposite
 214 */
 215 void XGUI_Viewer::toggleTrihedron()
 216 {
 217     setTrihedronShown( !isTrihedronVisible() );
 218 }
 219
 220 /*!
 221   \return true if trihedron is visible
 222 */
 223 bool XGUI_Viewer::isTrihedronVisible() const
 224 {
 225     return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed( myTrihedron );
 226 }
 227
 228 /*!
 229   Sets visibility state of trihedron
 230   \param on - new state
 231 */
 232
 233 void XGUI_Viewer::setTrihedronShown( const bool on )
 234 {
 235     if ( myTrihedron.IsNull() )
 236         return;
 237
 238     if ( on ) {
 239         myAISContext->Display( myTrihedron );
 240         myAISContext->Deactivate(myTrihedron);
 241     } else {
 242         myAISContext->Erase( myTrihedron );
 243     }
 244 }
 245
 246 /*!
 247   \return trihedron size
 248 */
 249 double XGUI_Viewer::trihedronSize() const
 250 {
 251     double sz = 0;
 252     if ( !myTrihedron.IsNull() )
 253         sz = myTrihedron->Size();
 254     return sz;
 255 }
 256
 257 /*!
 258   Changes trihedron size
 259   \param sz - new size
 260 */
 261 void XGUI_Viewer::setTrihedronSize( const double sz, bool isRelative )
 262 {
 263     if ( myTrihedronSize != sz || isRelative != myIsRelative) {
 264         myTrihedronSize = sz;
 265         myIsRelative = isRelative;
 266         updateTrihedron();
 267     }
 268 }
 269
 270 /*!
 271  * Update the size of the trihedron
 272  */
 273 void XGUI_Viewer::updateTrihedron()
 274 {
 275     if ( myTrihedron.IsNull() )
 276         return;
 277
 278     if(myIsRelative){
 279         double newSz, oldSz;
 280
 281         if(computeTrihedronSize(newSz, oldSz))
 282             myTrihedron->SetSize(newSz);
 283
 284     } else if(myTrihedron->Size() != myTrihedronSize) {
 285         myTrihedron->SetSize(myTrihedronSize);
 286     }
 287 }
 288
 289 /*!
 290   Get new and current trihedron size corresponding to the current model size
 291 */
 292 bool XGUI_Viewer::computeTrihedronSize( double& theNewSize, double& theSize )
 293 {
 294   theNewSize = 100;
 295   theSize = 100;
 296
 297   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 298   Handle(V3d_Viewer) viewer = v3dViewer();
 299   viewer->InitActiveViews();
 300   if(!viewer->MoreActiveViews()) return false;
 301
 302   Handle(V3d_View) view3d = viewer->ActiveView();
 303   //SRN: END of fix
 304
 305   if ( view3d.IsNull() )
 306     return false;
 307
 308   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 309   double aMaxSide;
 310
 311   view3d->View()->MinMaxValues( Xmin, Ymin, Zmin, Xmax, Ymax, Zmax );
 312
 313   if ( Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() ||
 314        Xmax == RealLast()  || Ymax == RealLast()  || Zmax == RealLast() )
 315     return false;
 316
 317   aMaxSide = Xmax - Xmin;
 318   if ( aMaxSide < Ymax -Ymin ) aMaxSide = Ymax -Ymin;
 319   if ( aMaxSide < Zmax -Zmin ) aMaxSide = Zmax -Zmin;
 320
 321   // IPAL21687
 322   // The boundary box of the view may be initialized but nullified
 323   // (case of infinite objects)
 324   if ( aMaxSide < Precision::Confusion() )
 325     return false;
 326
 327   static float EPS = 5.0E-3;
 328   theSize = trihedron()->Size();
 329   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 330
 331   return fabs( theNewSize - theSize ) > theSize * EPS ||
 332          fabs( theNewSize - theSize) > theNewSize * EPS;
 333 }
 334
 335
 336 void XGUI_Viewer::onViewClosed()
 337 {
 338   Standard_Integer aViewsNb = 0;
 339   for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 340     ++aViewsNb;
 341   if ( aViewsNb < 2 ) {
 342     //clean up presentations before last view is closed
 343     myAISContext->RemoveAll(Standard_False);
 344   }
 345 }
 346
 347 void XGUI_Viewer::onViewMapped()
 348 {
 349   setTrihedronShown( true );
 350 }
 351