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
  62 XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron) :
  63 QObject(theParent),
  64     myMainWindow(theParent),
  65     myPreselectionEnabled(true),
  66     mySelectionEnabled(true),
  67     myMultiSelectionEnabled(true),
  68     myIsRelative(true),
  69     myInteractionStyle(XGUI::STANDARD),
  70     myTrihedronSize(100)
  71 {
  72     if ( !isInitialized ) {
  73         isInitialized = true;
  74
  75         // standard interaction style
  76         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM]  = Qt::ControlModifier;
  77         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
  78
  79         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN]   = Qt::ControlModifier;
  80         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN]  = Qt::MidButton;
  81
  82         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE]  = Qt::ControlModifier;
  83         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
  84
  85         XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA]  = Qt::ControlModifier;
  86         XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
  87
  88         // "key free" interaction style
  89         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM]  = Qt::NoModifier;
  90         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
  91
  92         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN]   = Qt::NoModifier;
  93         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN]  = Qt::MidButton;
  94
  95         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE]  = Qt::NoModifier;
  96         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
  97
  98         XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA]  = Qt::NoModifier; // unused
  99         XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton;   // unused
 100     }
 101
 102     // init CasCade viewers
 103     myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(),
 104                                                    "", "", 1000.0, V3d_XposYnegZpos, Standard_True, Standard_True );
 105     //myV3dViewer->Init(); // to avoid creation of the useless perspective view (see OCCT issue 0024267)
 106     myV3dViewer->SetDefaultLights();
 107
 108     // init selector
 109     myAISContext = new AIS_InteractiveContext( myV3dViewer );
 110     myAISContext->SelectionColor( Quantity_NOC_WHITE );
 111
 112     // display isoline on planar faces (box for ex.)
 113     myAISContext->IsoOnPlane( true );
 114
 115     if ( DisplayTrihedron )  {
 116         Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
 117         myTrihedron = new AIS_Trihedron(anAxis);
 118         myTrihedron->SetInfiniteState( Standard_True );
 119
 120         Quantity_Color Col(193/255., 205/255., 193/255., Quantity_TOC_RGB);
 121         //myTrihedron->SetColor( Col );
 122         myTrihedron->SetArrowColor( Col.Name() );
 123         myTrihedron->SetSize(myTrihedronSize);
 124         Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
 125         if (drawer->HasDatumAspect()) {
 126             Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
 127             daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
 128             daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
 129             daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
 130         }
 131     }
 132     // set zooming style to standard
 133     //myZoomingStyle = 0;
 134 }
 135
 136
 137 XGUI_Viewer::~XGUI_Viewer(void)
 138 {
 139 }
 140
 141
 142 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 143 {
 144     // create view frame
 145     XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
 146     // get main view window (created by view frame)
 147     //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
 148     // initialize main view window
 149     //initView( vw );
 150     // set default background for view window
 151     //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
 152     //// connect signal from viewport
 153     connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
 154     connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
 155
 156     QMdiArea* aMDI = myMainWindow->mdiArea();
 157     QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
 158     aWnd->setGeometry(0,0, aMDI->width() / 2, aMDI->height() / 2);
 159     aWnd->show();
 160     return aWnd;
 161 }
 162
 163 /*! Sets hot button
 164  *\param theOper - hot operation
 165  *\param theState - adding state to state map operations.
 166  *\param theButton - adding state to button map operations.
 167  */
 168 void XGUI_Viewer::setHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 169                                    Qt::KeyboardModifiers theState, Qt::MouseButtons theButton )
 170 {
 171     myStateMap[theInteractionStyle][theOper]  = theState;
 172     myButtonMap[theInteractionStyle][theOper] = theButton;
 173 }
 174
 175 /*! Gets hot button for operation \a theOper.
 176  *\param theOper - input hot operation
 177  *\param theState - output state from state map operations.
 178  *\param theButton - output state from button map operations.
 179 */
 180 void XGUI_Viewer::getHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
 181                                    Qt::KeyboardModifiers& theState, Qt::MouseButtons& theButton )
 182 {
 183     theState  = myStateMap[theInteractionStyle][theOper];
 184     theButton = myButtonMap[theInteractionStyle][theOper];
 185 }
 186
 187 /*!
 188   Changes visibility of trihedron to opposite
 189 */
 190 void XGUI_Viewer::toggleTrihedron()
 191 {
 192     setTrihedronShown( !isTrihedronVisible() );
 193 }
 194
 195 /*!
 196   \return true if trihedron is visible
 197 */
 198 bool XGUI_Viewer::isTrihedronVisible() const
 199 {
 200     return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed( myTrihedron );
 201 }
 202
 203 /*!
 204   Sets visibility state of trihedron
 205   \param on - new state
 206 */
 207
 208 void XGUI_Viewer::setTrihedronShown( const bool on )
 209 {
 210     if ( myTrihedron.IsNull() )
 211         return;
 212
 213     if ( on ) {
 214         myAISContext->Display( myTrihedron );
 215         myAISContext->Deactivate(myTrihedron);
 216     } else {
 217         myAISContext->Erase( myTrihedron );
 218     }
 219 }
 220
 221 /*!
 222   \return trihedron size
 223 */
 224 double XGUI_Viewer::trihedronSize() const
 225 {
 226     double sz = 0;
 227     if ( !myTrihedron.IsNull() )
 228         sz = myTrihedron->Size();
 229     return sz;
 230 }
 231
 232 /*!
 233   Changes trihedron size
 234   \param sz - new size
 235 */
 236 void XGUI_Viewer::setTrihedronSize( const double sz, bool isRelative )
 237 {
 238     if ( myTrihedronSize != sz || isRelative != myIsRelative) {
 239         myTrihedronSize = sz;
 240         myIsRelative = isRelative;
 241         updateTrihedron();
 242     }
 243 }
 244
 245 /*!
 246  * Update the size of the trihedron
 247  */
 248 void XGUI_Viewer::updateTrihedron()
 249 {
 250     if ( myTrihedron.IsNull() )
 251         return;
 252
 253     if(myIsRelative){
 254         double newSz, oldSz;
 255
 256         if(computeTrihedronSize(newSz, oldSz))
 257             myTrihedron->SetSize(newSz);
 258
 259     } else if(myTrihedron->Size() != myTrihedronSize) {
 260         myTrihedron->SetSize(myTrihedronSize);
 261     }
 262 }
 263
 264 /*!
 265   Get new and current trihedron size corresponding to the current model size
 266 */
 267 bool XGUI_Viewer::computeTrihedronSize( double& theNewSize, double& theSize )
 268 {
 269   theNewSize = 100;
 270   theSize = 100;
 271
 272   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
 273   Handle(V3d_Viewer) viewer = v3dViewer();
 274   viewer->InitActiveViews();
 275   if(!viewer->MoreActiveViews()) return false;
 276
 277   Handle(V3d_View) view3d = viewer->ActiveView();
 278   //SRN: END of fix
 279
 280   if ( view3d.IsNull() )
 281     return false;
 282
 283   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
 284   double aMaxSide;
 285
 286   view3d->View()->MinMaxValues( Xmin, Ymin, Zmin, Xmax, Ymax, Zmax );
 287
 288   if ( Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() ||
 289        Xmax == RealLast()  || Ymax == RealLast()  || Zmax == RealLast() )
 290     return false;
 291
 292   aMaxSide = Xmax - Xmin;
 293   if ( aMaxSide < Ymax -Ymin ) aMaxSide = Ymax -Ymin;
 294   if ( aMaxSide < Zmax -Zmin ) aMaxSide = Zmax -Zmin;
 295
 296   // IPAL21687
 297   // The boundary box of the view may be initialized but nullified
 298   // (case of infinite objects)
 299   if ( aMaxSide < Precision::Confusion() )
 300     return false;
 301
 302   static float EPS = 5.0E-3;
 303   theSize = trihedron()->Size();
 304   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 305
 306   return fabs( theNewSize - theSize ) > theSize * EPS ||
 307          fabs( theNewSize - theSize) > theNewSize * EPS;
 308 }
 309
 310
 311 void XGUI_Viewer::onViewClosed()
 312 {
 313   Standard_Integer aViewsNb = 0;
 314   for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
 315     ++aViewsNb;
 316   if ( aViewsNb < 2 ) {
 317     //clean up presentations before last view is closed
 318     myAISContext->RemoveAll(Standard_False);
 319   }
 320 }
 321
 322 void XGUI_Viewer::onViewMapped()
 323 {
 324   setTrihedronShown( true );
 325 }
 326