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[modules/shaper.git] / src / XGUI / XGUI_Viewer.cpp
index 485ae600873b708d3ac9554798b314f906a9ed65..c0048f2fad54430451e33e24e6f1c95d0862f5c8 100644 (file)
@@ -2,9 +2,15 @@
 #include "XGUI_MainWindow.h"
 #include "XGUI_ViewWindow.h"
 #include "XGUI_ViewPort.h"
+#include "XGUI_Workshop.h"
+
+#include <SUIT_ResourceMgr.h>
 
 #include <QMdiArea>
 #include <QMdiSubWindow>
+#include <QApplication>
+#include <QMouseEvent>
+#include <QMenu>
 
 #include <V3d_View.hxx>
 
 #include <Prs3d_LineAspect.hxx>
 #include <V3d_View.hxx>
 #include <Visual3d_View.hxx>
+#include <AIS_ListOfInteractive.hxx>
+#include <AIS_ListIteratorOfListOfInteractive.hxx>
+#include <AIS_Shape.hxx>
+
 
 #ifdef WIN32
 #include <WNT_Window.hxx>
@@ -28,136 +38,197 @@ XGUI_Viewer::InteractionStyle2StatesMap XGUI_Viewer::myStateMap;
 XGUI_Viewer::InteractionStyle2ButtonsMap XGUI_Viewer::myButtonMap;
 static bool isInitialized = false;
 
-
 /*!
-    Creates viewer 3d [ static ]
-*/
-Handle(V3d_Viewer) CreateViewer( const Standard_ExtString name,
-                                                    const Standard_CString displayName,
-                                                    const Standard_CString domain,
-                                                    const Standard_Real viewSize ,
-                                                    const V3d_TypeOfOrientation viewProjection,
-                                                    const Standard_Boolean computedMode,
-                                                    const Standard_Boolean defaultComputedMode )
+ Creates viewer 3d [ static ]
+ */
+Handle(V3d_Viewer) CreateViewer(const Standard_ExtString name, const Standard_CString displayName,
+                                const Standard_CString domain, const Standard_Real viewSize,
+                                const V3d_TypeOfOrientation viewProjection,
+                                const Standard_Boolean computedMode,
+                                const Standard_Boolean defaultComputedMode)
 {
   static Handle(Graphic3d_GraphicDriver) aGraphicDriver;
-  if (aGraphicDriver.IsNull())
-  {
+  if (aGraphicDriver.IsNull()) {
     Handle(Aspect_DisplayConnection) aDisplayConnection;
 #ifndef WIN32
     aDisplayConnection = new Aspect_DisplayConnection( displayName );
 #else
     aDisplayConnection = new Aspect_DisplayConnection();
 #endif
-    aGraphicDriver = Graphic3d::InitGraphicDriver( aDisplayConnection );
+    aGraphicDriver = Graphic3d::InitGraphicDriver(aDisplayConnection);
   }
 
-  return new V3d_Viewer( aGraphicDriver, name, domain, viewSize, viewProjection,
-                        Quantity_NOC_GRAY30, V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT,
-                        computedMode, defaultComputedMode, V3d_TEX_NONE );
+  return new V3d_Viewer(aGraphicDriver, name, domain, viewSize, viewProjection, Quantity_NOC_GRAY30,
+                        V3d_ZBUFFER, V3d_GOURAUD, V3d_WAIT, computedMode, defaultComputedMode,
+                        V3d_TEX_NONE);
 }
 
+// VSR: Uncomment below line to allow texture background support in OCC viewer
+#define OCC_ENABLE_TEXTURED_BACKGROUND
 
+/*!
+ Get data for supported background modes: gradient types, identifiers and supported image formats
+ */
+QString XGUI_Viewer::backgroundData(QStringList& gradList, QIntList& idList, QIntList& txtList)
+{
+  gradList << tr("Horizontal gradient") << tr("Vertical gradient")
+      << tr("First diagonal gradient") << tr("Second diagonal gradient")
+      << tr("First corner gradient") << tr("Second corner gradient")
+      << tr("Third corner gradient") << tr("Fourth corner gradient");
+  idList << XGUI::HorizontalGradient << XGUI::VerticalGradient << XGUI::Diagonal1Gradient
+      << XGUI::Diagonal2Gradient << XGUI::Corner1Gradient << XGUI::Corner2Gradient
+      << XGUI::Corner3Gradient << XGUI::Corner4Gradient;
+#ifdef OCC_ENABLE_TEXTURED_BACKGROUND
+  txtList << XGUI::CenterTexture << XGUI::TileTexture << XGUI::StretchTexture;
+#endif
+  return tr("Image files (*.bmp *.gif *.pix *.xwd *.rgb *.rs)");
+}
 
-XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron) :
-QObject(theParent), 
-    myMainWindow(theParent),
-    myPreselectionEnabled(true),
-    mySelectionEnabled(true),
-    myMultiSelectionEnabled(true),
-    myIsRelative(true),
-    myInteractionStyle(XGUI::STANDARD),
-    myTrihedronSize(100)
+XGUI_Viewer::XGUI_Viewer(XGUI_MainWindow* theParent, bool DisplayTrihedron)
+    : QObject(theParent), 
+    myMainWindow(theParent), 
+    myPreselectionEnabled(true), 
+    mySelectionEnabled(true), 
+    myMultiSelectionEnabled(true), 
+    myIsRelative(true), 
+    myInteractionStyle(XGUI::STANDARD), 
+    myTrihedronSize(100),
+    myActiveView(0),
+    myWndIdCount(0)
 {
-    if ( !isInitialized ) {
-        isInitialized = true;
+  if (!isInitialized) {
+    isInitialized = true;
 
-        // standard interaction style
-        XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM]  = Qt::ControlModifier;
-        XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
+    // standard interaction style
+    XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::ControlModifier;
+    XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ZOOM] = Qt::LeftButton;
 
-        XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN]   = Qt::ControlModifier;
-        XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN]  = Qt::MidButton;
+    XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::PAN] = Qt::ControlModifier;
+    XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::PAN] = Qt::MidButton;
 
-        XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE]  = Qt::ControlModifier;
-        XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
+    XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::ControlModifier;
+    XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::ROTATE] = Qt::RightButton;
 
-        XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA]  = Qt::ControlModifier;
-        XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
+    XGUI_Viewer::myStateMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::ControlModifier;
+    XGUI_Viewer::myButtonMap[XGUI::STANDARD][XGUI::FIT_AREA] = Qt::RightButton;
 
-        // "key free" interaction style
-        XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM]  = Qt::NoModifier;
-        XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
+    // "key free" interaction style
+    XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::NoModifier;
+    XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ZOOM] = Qt::RightButton;
 
-        XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN]   = Qt::NoModifier;
-        XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN]  = Qt::MidButton;
+    XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::NoModifier;
+    XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::PAN] = Qt::MidButton;
 
-        XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE]  = Qt::NoModifier;
-        XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
+    XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::NoModifier;
+    XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::ROTATE] = Qt::LeftButton;
+
+    XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoModifier; // unused
+    XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton; // unused
+  }
 
-        XGUI_Viewer::myStateMap[XGUI::KEY_FREE][XGUI::FIT_AREA]  = Qt::NoModifier; // unused
-        XGUI_Viewer::myButtonMap[XGUI::KEY_FREE][XGUI::FIT_AREA] = Qt::NoButton;   // unused
+  // init CasCade viewers
+  myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(), "", "", 1000.0,
+                             V3d_XposYnegZpos, Standard_True, Standard_True);
+  myV3dViewer->SetDefaultLights();
+
+  // init selector
+  myAISContext = new AIS_InteractiveContext(myV3dViewer);
+  myAISContext->SelectionColor(Quantity_NOC_WHITE);
+
+  // display isoline on planar faces (box for ex.)
+  myAISContext->IsoOnPlane(true);
+
+  if (DisplayTrihedron) {
+    Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
+    myTrihedron = new AIS_Trihedron(anAxis);
+    myTrihedron->SetInfiniteState( Standard_True);
+
+    Quantity_Color Col(193 / 255., 205 / 255., 193 / 255., Quantity_TOC_RGB);
+    myTrihedron->SetArrowColor(Col.Name());
+    myTrihedron->SetSize(myTrihedronSize);
+    Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
+    if (drawer->HasDatumAspect()) {
+      Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
+      daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
+      daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
+      daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
     }
+  }
+  // set zooming style to standard
+  //myZoomingStyle = 0;
 
-    // init CasCade viewers
-    myV3dViewer = CreateViewer(TCollection_ExtendedString("Viewer3d").ToExtString(),
-                                                  "", "", 1000.0, V3d_XposYnegZpos, Standard_True, Standard_True );
-    //myV3dViewer->Init(); // to avoid creation of the useless perspective view (see OCCT issue 0024267)
-    myV3dViewer->SetDefaultLights();
+  QMdiArea* aMDI = myMainWindow->mdiArea();
+  connect(aMDI, SIGNAL(subWindowActivated(QMdiSubWindow*)), this, SLOT(onWindowActivated(QMdiSubWindow*)));
 
-    // init selector
-    myAISContext = new AIS_InteractiveContext( myV3dViewer );
-    myAISContext->SelectionColor( Quantity_NOC_WHITE );
-  
-    // display isoline on planar faces (box for ex.)
-    myAISContext->IsoOnPlane( true );
-  
-    if ( DisplayTrihedron )  {
-        Handle(Geom_Axis2Placement) anAxis = new Geom_Axis2Placement(gp::XOY());
-        myTrihedron = new AIS_Trihedron(anAxis);
-        myTrihedron->SetInfiniteState( Standard_True );
-    
-        Quantity_Color Col(193/255., 205/255., 193/255., Quantity_TOC_RGB);
-        //myTrihedron->SetColor( Col );
-        myTrihedron->SetArrowColor( Col.Name() );
-        myTrihedron->SetSize(myTrihedronSize);
-        Handle(AIS_Drawer) drawer = myTrihedron->Attributes();
-        if (drawer->HasDatumAspect()) {
-            Handle(Prs3d_DatumAspect) daspect = drawer->DatumAspect();
-            daspect->FirstAxisAspect()->SetColor(Quantity_Color(1.0, 0.0, 0.0, Quantity_TOC_RGB));
-            daspect->SecondAxisAspect()->SetColor(Quantity_Color(0.0, 1.0, 0.0, Quantity_TOC_RGB));
-            daspect->ThirdAxisAspect()->SetColor(Quantity_Color(0.0, 0.0, 1.0, Quantity_TOC_RGB));
-        }
-    }
-    // set zooming style to standard
-    //myZoomingStyle = 0;
 }
 
-
 XGUI_Viewer::~XGUI_Viewer(void)
 {
+  myAISContext.Nullify();
+  myV3dViewer.Nullify();
 }
 
-
 QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
 {
-    // create view frame
-    XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
-    // get main view window (created by view frame)
-    //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
-    // initialize main view window
-    //initView( vw );
-    // set default background for view window
-    //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
-    //// connect signal from viewport
-    connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
-    connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
-
-    QMdiArea* aMDI = myMainWindow->mdiArea();
-    QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
-    aWnd->setGeometry(0,0, aMDI->width() / 2, aMDI->height() / 2);
-    aWnd->show();
-    return aWnd;
+  // create view frame
+  XGUI_ViewWindow* view = new XGUI_ViewWindow(this, theType);
+  // get main view window (created by view frame)
+  //OCCViewer_ViewWindow* vw = view->getView(OCCViewer_ViewFrame::MAIN_VIEW);
+  // initialize main view window
+  //initView( vw );
+  // set default background for view window
+  //vw->setBackground( background(0) ); // 0 means MAIN_VIEW (other views are not yet created here)
+  // connect signal from viewport
+  //connect(view->viewPort(), SIGNAL(vpClosed()), this, SLOT(onViewClosed()));
+    //connect(view->viewPort(), SIGNAL(vpMapped()), this, SLOT(onViewMapped()));
+  if (myViews.size() == 0) 
+    setTrihedronShown(true);
+
+  Qtx::BackgroundData aBk = XGUI_Workshop::resourceMgr()->backgroundValue("Viewer", "background");
+  view->setBackground(aBk);
+  view->updateEnabledDrawMode();
+
+  QMdiArea* aMDI = myMainWindow->mdiArea();
+  QMdiSubWindow* aWnd = aMDI->addSubWindow(view, Qt::FramelessWindowHint);
+  addView(aWnd);
+  aWnd->setGeometry(0, 0, aMDI->width() / 2, aMDI->height() / 2);
+  aWnd->show();
+  aWnd->setWindowTitle(QString("Viewer #%1").arg(++myWndIdCount));
+  emit viewCreated(view);
+  return aWnd;
+}
+
+XGUI_ViewWindow* XGUI_Viewer::activeViewWindow() const
+{
+  if (myActiveView)
+    return dynamic_cast<XGUI_ViewWindow*>(myActiveView->widget());
+  return 0;
+}
+
+void XGUI_Viewer::getSelectedObjects(AIS_ListOfInteractive& theList)
+{
+  theList.Clear();
+  for (myAISContext->InitSelected(); myAISContext->MoreSelected(); myAISContext->NextSelected())
+    theList.Append(myAISContext->SelectedInteractive());
+}
+
+void XGUI_Viewer::getSelectedShapes(NCollection_List<TopoDS_Shape>& theList)
+{
+  Handle(AIS_InteractiveContext) ic = AISContext();
+
+  for (ic->InitSelected(); ic->MoreSelected(); ic->NextSelected()) {
+    TopoDS_Shape aShape = ic->SelectedShape();
+    if (!aShape.IsNull())
+      theList.Append(aShape);
+  }
+}
+
+void XGUI_Viewer::setObjectsSelected(const AIS_ListOfInteractive& theList)
+{
+  AIS_ListIteratorOfListOfInteractive aIt;
+  for (aIt.Initialize(theList); aIt.More(); aIt.Next())
+    myAISContext->AddOrRemoveSelected(aIt.Value(), false);
+  myAISContext->UpdateCurrentViewer();
 }
 
 /*! Sets hot button
@@ -165,106 +236,108 @@ QMdiSubWindow* XGUI_Viewer::createView(V3d_TypeOfView theType)
  *\param theState - adding state to state map operations.
  *\param theButton - adding state to button map operations.
  */
-void XGUI_Viewer::setHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
-                                   Qt::KeyboardModifiers theState, Qt::MouseButtons theButton )
+void XGUI_Viewer::setHotButton(XGUI::InteractionStyle theInteractionStyle,
+                               XGUI::HotOperation theOper, Qt::KeyboardModifiers theState,
+                               Qt::MouseButtons theButton)
 {
-    myStateMap[theInteractionStyle][theOper]  = theState;
-    myButtonMap[theInteractionStyle][theOper] = theButton;
+  myStateMap[theInteractionStyle][theOper] = theState;
+  myButtonMap[theInteractionStyle][theOper] = theButton;
 }
 
 /*! Gets hot button for operation \a theOper.
  *\param theOper - input hot operation
  *\param theState - output state from state map operations.
  *\param theButton - output state from button map operations.
-*/
-void XGUI_Viewer::getHotButton( XGUI::InteractionStyle theInteractionStyle, XGUI::HotOperation theOper,
-                                   Qt::KeyboardModifiers& theState, Qt::MouseButtons& theButton )
+ */
+void XGUI_Viewer::getHotButton(XGUI::InteractionStyle theInteractionStyle,
+                               XGUI::HotOperation theOper, Qt::KeyboardModifiers& theState,
+                               Qt::MouseButtons& theButton)
 {
-    theState  = myStateMap[theInteractionStyle][theOper];
-    theButton = myButtonMap[theInteractionStyle][theOper];
+  theState = myStateMap[theInteractionStyle][theOper];
+  theButton = myButtonMap[theInteractionStyle][theOper];
 }
 
 /*!
 Changes visibility of trihedron to opposite
-*/
+ Changes visibility of trihedron to opposite
+ */
 void XGUI_Viewer::toggleTrihedron()
 {
-    setTrihedronShown( !isTrihedronVisible() );
+  setTrihedronShown(!isTrihedronVisible());
 }
 
 /*!
 \return true if trihedron is visible
-*/
+ \return true if trihedron is visible
+ */
 bool XGUI_Viewer::isTrihedronVisible() const
 {
-    return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed( myTrihedron );
+  return !myTrihedron.IsNull() && !myAISContext.IsNull() && myAISContext->IsDisplayed(myTrihedron);
 }
 
 /*!
 Sets visibility state of trihedron
 \param on - new state
-*/
+ Sets visibility state of trihedron
+ \param on - new state
+ */
 
-void XGUI_Viewer::setTrihedronShown( const bool on )
+void XGUI_Viewer::setTrihedronShown(bool on)
 {
-    if ( myTrihedron.IsNull() )
-        return;
-
-    if ( on ) {
-        myAISContext->Display( myTrihedron );
-        myAISContext->Deactivate(myTrihedron);
-    } else {
-        myAISContext->Erase( myTrihedron );
-    }
+  if (myTrihedron.IsNull())
+    return;
+
+  if (on) {
+    myAISContext->Display(myTrihedron);
+    myAISContext->Deactivate(myTrihedron);
+  } else {
+    myAISContext->Erase(myTrihedron);
+  }
 }
 
 /*!
 \return trihedron size
-*/
+ \return trihedron size
+ */
 double XGUI_Viewer::trihedronSize() const
 {
-    double sz = 0;
-    if ( !myTrihedron.IsNull() )
-        sz = myTrihedron->Size();
-    return sz;
+  double sz = 0;
+  if (!myTrihedron.IsNull())
+    sz = myTrihedron->Size();
+  return sz;
 }
 
 /*!
 Changes trihedron size
 \param sz - new size
-*/
-void XGUI_Viewer::setTrihedronSize( const double sz, bool isRelative )
+ Changes trihedron size
+ \param sz - new size
+ */
+void XGUI_Viewer::setTrihedronSize(const double sz, bool isRelative)
 {
-    if ( myTrihedronSize != sz || isRelative != myIsRelative) {
-        myTrihedronSize = sz; 
-        myIsRelative = isRelative;
-        updateTrihedron();
-    }
+  if (myTrihedronSize != sz || isRelative != myIsRelative) {
+    myTrihedronSize = sz;
+    myIsRelative = isRelative;
+    updateTrihedron();
+  }
 }
 
 /*! 
  * Update the size of the trihedron
  */
-void XGUI_Viewer::updateTrihedron() 
+void XGUI_Viewer::updateTrihedron()
 {
-    if ( myTrihedron.IsNull() )
-        return;
-
-    if(myIsRelative){
-        double newSz, oldSz;
-    
-        if(computeTrihedronSize(newSz, oldSz))
-            myTrihedron->SetSize(newSz);
-    
-    } else if(myTrihedron->Size() != myTrihedronSize) {
-        myTrihedron->SetSize(myTrihedronSize);
-    }
+  if (myTrihedron.IsNull())
+    return;
+
+  if (myIsRelative) {
+    double newSz, oldSz;
+
+    if (computeTrihedronSize(newSz, oldSz))
+      myTrihedron->SetSize(newSz);
+
+  } else if (myTrihedron->Size() != myTrihedronSize) {
+    myTrihedron->SetSize(myTrihedronSize);
+  }
 }
 
 /*!
 Get new and current trihedron size corresponding to the current model size
-*/
-bool XGUI_Viewer::computeTrihedronSize( double& theNewSize, double& theSize )
+ Get new and current trihedron size corresponding to the current model size
+ */
+bool XGUI_Viewer::computeTrihedronSize(double& theNewSize, double& theSize)
 {
   theNewSize = 100;
   theSize = 100;
@@ -272,55 +345,279 @@ bool XGUI_Viewer::computeTrihedronSize( double& theNewSize, double& theSize )
   //SRN: BUG IPAL8996, a usage of method ActiveView without an initialization
   Handle(V3d_Viewer) viewer = v3dViewer();
   viewer->InitActiveViews();
-  if(!viewer->MoreActiveViews()) return false;
+  if (!viewer->MoreActiveViews())
+    return false;
 
   Handle(V3d_View) view3d = viewer->ActiveView();
   //SRN: END of fix
 
-  if ( view3d.IsNull() )
+  if (view3d.IsNull())
     return false;
 
   double Xmin = 0, Ymin = 0, Zmin = 0, Xmax = 0, Ymax = 0, Zmax = 0;
   double aMaxSide;
 
-  view3d->View()->MinMaxValues( Xmin, Ymin, Zmin, Xmax, Ymax, Zmax );
+  view3d->View()->MinMaxValues(Xmin, Ymin, Zmin, Xmax, Ymax, Zmax);
 
-  if ( Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() ||
-       Xmax == RealLast()  || Ymax == RealLast()  || Zmax == RealLast() )
+  if (Xmin == RealFirst() || Ymin == RealFirst() || Zmin == RealFirst() || Xmax == RealLast()
+      || Ymax == RealLast() || Zmax == RealLast())
     return false;
 
   aMaxSide = Xmax - Xmin;
-  if ( aMaxSide < Ymax -Ymin ) aMaxSide = Ymax -Ymin;
-  if ( aMaxSide < Zmax -Zmin ) aMaxSide = Zmax -Zmin;
+  if (aMaxSide < Ymax - Ymin)
+    aMaxSide = Ymax - Ymin;
+  if (aMaxSide < Zmax - Zmin)
+    aMaxSide = Zmax - Zmin;
 
   // IPAL21687
   // The boundary box of the view may be initialized but nullified
   // (case of infinite objects)
-  if ( aMaxSide < Precision::Confusion() )
+  if (aMaxSide < Precision::Confusion())
     return false;
 
-  static float EPS = 5.0E-3;
+  static float EPS = (float)5.0E-3;
   theSize = trihedron()->Size();
   //theNewSize = aMaxSide*aSizeInPercents / 100.0;
 
-  return fabs( theNewSize - theSize ) > theSize * EPS ||
-         fabs( theNewSize - theSize) > theNewSize * EPS;
+  return fabs(theNewSize - theSize) > theSize * EPS || fabs(theNewSize - theSize) > theNewSize * EPS;
+}
+
+void XGUI_Viewer::onViewClosed(QMdiSubWindow* theView)
+{
+  if ( !theView )
+    return;
+
+  emit deleteView( static_cast<XGUI_ViewWindow*>(theView->widget()) );
+  removeView( theView );
+
+  // if this is last view
+  if (myViews.size() == 0) {
+    Standard_Integer aViewsNb = 0;
+    for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
+      ++aViewsNb;
+    if ( aViewsNb < 2 ) {
+      //clean up presentations before last view is closed
+      myAISContext->RemoveAll(Standard_False);
+    }
+  }
+}
+
+/*!Remove view window \a theView from view manager.
+ *And close the last view, if it has \a theView.
+*/
+void XGUI_Viewer::removeView( QMdiSubWindow* theView )
+{
+    XGUI_ViewWindow* aWindow = static_cast<XGUI_ViewWindow*>(theView->widget());
+
+    aWindow->disconnect( this );
+    myViews.removeAt( myViews.indexOf( theView ) );
+    if ( myActiveView == theView )
+        myActiveView = 0;
+    if ( myViews.size() == 0 )
+        emit lastViewClosed();
+}
+
+
+/*void XGUI_Viewer::onViewMapped()
+{
+  setTrihedronShown(true);
+}*/
+
+
+void XGUI_Viewer::addView(QMdiSubWindow* theView)
+{
+    XGUI_ViewWindow* aWindow = dynamic_cast<XGUI_ViewWindow*>(theView->widget());
+
+    connect(aWindow, SIGNAL(closed(QMdiSubWindow*)),
+            this,    SLOT(onViewClosed(QMdiSubWindow*)));
+
+    connect(aWindow, SIGNAL(tryClosing(XGUI_ViewWindow*)),
+            this,    SIGNAL(tryCloseView(XGUI_ViewWindow*)));
+
+    connect(aWindow, SIGNAL(mousePressed(XGUI_ViewWindow*, QMouseEvent*)),
+            this,    SLOT(onMousePressed(XGUI_ViewWindow*, QMouseEvent*)));
+
+    connect(aWindow, SIGNAL(mouseDoubleClicked(XGUI_ViewWindow*, QMouseEvent*)),
+            this,    SIGNAL(mouseDoubleClick(XGUI_ViewWindow*, QMouseEvent*)));
+
+    connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
+            this,    SIGNAL(mouseMove(XGUI_ViewWindow*, QMouseEvent*)));
+
+    connect(aWindow, SIGNAL(keyPressed(XGUI_ViewWindow*, QKeyEvent*)),
+            this,    SIGNAL(keyPress(XGUI_ViewWindow*, QKeyEvent*)));
+
+    connect(aWindow, SIGNAL(keyReleased(XGUI_ViewWindow*, QKeyEvent*)),
+            this,    SIGNAL(keyRelease(XGUI_ViewWindow*, QKeyEvent*)));
+
+    //connect(aWindow, SIGNAL(contextMenuRequested( QContextMenuEvent* )),
+    //        this,    SLOT  (onContextMenuRequested( QContextMenuEvent* )));
+    connect(aWindow, SIGNAL( contextMenuRequested(QContextMenuEvent*) ), 
+            this, SIGNAL( contextMenuRequested(QContextMenuEvent*) ) );
+
+    connect(aWindow, SIGNAL(mouseMoving(XGUI_ViewWindow*, QMouseEvent*)),
+            this, SLOT(onMouseMove(XGUI_ViewWindow*, QMouseEvent*)));
+
+    connect(aWindow, SIGNAL(mouseReleased(XGUI_ViewWindow*, QMouseEvent*)),
+            this, SLOT(onMouseReleased(XGUI_ViewWindow*, QMouseEvent*)));
+
+    myViews.append(theView);
+}
+
+/*!
+    Emit activated for view \a view.
+*/
+void XGUI_Viewer::onWindowActivated(QMdiSubWindow* view)
+{
+  if (view && (view != myActiveView) && (!view->isMinimized())) {
+    myActiveView = view;
+    ((XGUI_ViewWindow*)myActiveView->widget())->windowActivated();
+    QList<QMdiSubWindow*>::iterator aIt;
+    for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
+      if ((*aIt) != myActiveView) {
+        ((XGUI_ViewWindow*)(*aIt)->widget())->windowDeactivated();
+      }
+    }
+  }
+}
+
+
+void XGUI_Viewer::onWindowMinimized(QMdiSubWindow* theWnd)
+{
+  if (myActiveView == theWnd) {
+    myActiveView = 0;
+    QList<QMdiSubWindow*>::iterator aIt;
+    for (aIt = myViews.begin(); aIt != myViews.end(); ++aIt) {
+      if (!(*aIt)->widget()->isMinimized()) {
+        (*aIt)->raise();
+        onWindowActivated(*aIt);
+        break;
+      }
+    }
+  }
 }
 
+/*!
+  SLOT: called on mouse button press, stores current mouse position as start point for transformations
+*/
+void XGUI_Viewer::onMousePressed(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
+{
+  myStartPnt.setX(theEvent->x()); myStartPnt.setY(theEvent->y());
+  emit mousePress(theWindow, theEvent);
+}
+
+/*!
+  SLOT: called on mouse move, processes hilighting
+*/
+void XGUI_Viewer::onMouseMove(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
+{
+  myCurPnt.setX(theEvent->x()); myCurPnt.setY(theEvent->y());
+  if (!mySelectionEnabled) return;
+
+  Handle(V3d_View) aView3d = theWindow->viewPort()->getView();
+  if ( !aView3d.IsNull() ) {
+    myAISContext->MoveTo(theEvent->x(), theEvent->y(), aView3d);
+  }
+}
 
-void XGUI_Viewer::onViewClosed()
+/*!
+  SLOT: called on mouse button release, finishes selection
+*/
+void XGUI_Viewer::onMouseReleased(XGUI_ViewWindow* theWindow, QMouseEvent* theEvent)
 {
-  Standard_Integer aViewsNb = 0;
-  for ( myV3dViewer->InitActiveViews(); myV3dViewer->MoreActiveViews(); myV3dViewer->NextActiveViews())
-    ++aViewsNb;
-  if ( aViewsNb < 2 ) {
-    //clean up presentations before last view is closed
-    myAISContext->RemoveAll(Standard_False);
+  if (!mySelectionEnabled || theEvent->button() != Qt::LeftButton) {
+    emit mouseRelease(theWindow, theEvent);
+    return;
   }
+
+  myEndPnt.setX(theEvent->x()); myEndPnt.setY(theEvent->y());
+  bool aHasShift = (theEvent->modifiers() & Qt::ShiftModifier);
+  
+  //if (!aHasShift) 
+  //  emit deselection();
+
+  if (myStartPnt == myEndPnt) {
+    // the MoveTo is necessary for the second click in the same point. Otherwise the selection is lost.
+    Handle(V3d_View) aView3d = theWindow->viewPort()->getView();
+    if ( !aView3d.IsNull() ) {
+      myAISContext->MoveTo(theEvent->x(), theEvent->y(), aView3d);
+    }
+    if (aHasShift && myMultiSelectionEnabled)
+      myAISContext->ShiftSelect();
+    else
+      myAISContext->Select();
+  } else {
+    if (aHasShift && myMultiSelectionEnabled)
+      myAISContext->ShiftSelect(myStartPnt.x(), myStartPnt.y(),
+                                myEndPnt.x(), myEndPnt.y(),
+                                theWindow->viewPort()->getView(), false );
+    else
+      myAISContext->Select(myStartPnt.x(), myStartPnt.y(),
+                           myEndPnt.x(), myEndPnt.y(),
+                           theWindow->viewPort()->getView(), false );
+
+    int Nb = myAISContext->NbSelected();
+    if( Nb>1 && !myMultiSelectionEnabled ) {
+      myAISContext->InitSelected();
+      Handle( SelectMgr_EntityOwner ) anOwner = myAISContext->SelectedOwner();
+      if( !anOwner.IsNull() ) {
+        myAISContext->ClearSelected( Standard_False );
+        myAISContext->AddOrRemoveSelected( anOwner, Standard_False );
+      }
+    }
+
+    myAISContext->UpdateCurrentViewer();
+  }
+  emit mouseRelease(theWindow, theEvent);
+  emit selectionChanged();
+}
+
+//******************************************************
+void XGUI_Viewer::setMultiSelectionEnabled(bool toEnable) 
+{ 
+  myMultiSelectionEnabled = toEnable; 
+  updateViewsDrawMode();
 }
 
-void XGUI_Viewer::onViewMapped()
+//******************************************************
+void XGUI_Viewer::setSelectionEnabled(bool toEnable) 
+{ 
+  mySelectionEnabled = toEnable; 
+  updateViewsDrawMode();
+}
+
+//******************************************************
+void XGUI_Viewer::updateViewsDrawMode() const
 {
-  setTrihedronShown( true );
+  foreach(QMdiSubWindow* aWnd, myViews){
+    XGUI_ViewWindow* aView = static_cast<XGUI_ViewWindow*>(aWnd->widget());
+    aView->updateEnabledDrawMode();
+  }
 }
 
+//******************************************************
+//void XGUI_Viewer::onContextMenuRequested(QContextMenuEvent* theEvent)
+//{
+//  XGUI_ViewWindow* aWnd = dynamic_cast<XGUI_ViewWindow*>(sender());
+//  if (!aWnd) return;
+//
+//  QMenu aMenu;
+//
+//  // Include Viewer actions
+//  if (myActions.size() > 0) {
+//    aMenu.addActions(myActions);
+//    aMenu.addSeparator();
+//  }
+//  if (aWnd->actions().size() > 0) {
+//    aMenu.addActions(aWnd->actions());
+//    aMenu.addSeparator();
+//  }
+//
+//  QMdiArea* aMDI = myMainWindow->mdiArea();
+//  if (aMenu.actions().size() > 0) {
+//    QMenu* aSubMenu = aMenu.addMenu(tr("Windows"));
+//    aSubMenu->addActions(aMDI->actions());
+//  } else {
+//    aMenu.addActions(aMDI->actions());
+//  }
+//  aMenu.exec(theEvent->globalPos());
+//}