Integration of OCCT 6.5.0 from SVN

src/V3d/V3d_LayerMgr.cxx

@@ -0,0 +1,101 @@
+// File:  V3d_LayerMgr.cxx
+// Created: Thu Apr 17 12:34:25 2008
+// Author:  Customer Support
+//Copyright:  Open Cascade 2008
+
+#include <V3d_LayerMgr.ixx>
+
+#include <Aspect_Window.hxx>
+#include <Visual3d_View.hxx>
+#include <V3d_ColorScale.hxx>
+#include <Graphic3d_NameOfFont.hxx>
+
+
+V3d_LayerMgr::V3d_LayerMgr( const Handle(V3d_View)& AView )
+: myView(AView.operator->())
+{
+  Handle(Visual3d_View) theView = View()->View();
+  if ( !theView.IsNull() ) {
+    Handle(Visual3d_ViewManager) theViewMgr = theView->ViewManager();
+    if ( !theViewMgr.IsNull() ) {
+      V3d_LayerMgr* that = (V3d_LayerMgr*)this;
+      that->myOverlay = new Visual3d_Layer( theViewMgr, Aspect_TOL_OVERLAY, Standard_False );
+    }
+  }
+}
+
+void V3d_LayerMgr::Compute()
+{
+  if (Begin())
+  {
+    Redraw();
+    End();
+  }
+}
+
+void V3d_LayerMgr::Resized()
+{
+  Compute();
+}
+
+void V3d_LayerMgr::ColorScaleDisplay()
+{
+  ColorScale();
+  myColorScale->Display();
+  myOverlay->AddLayerItem( myColorScaleLayerItem );
+}
+
+void V3d_LayerMgr::ColorScaleErase()
+{
+  if ( !myColorScale.IsNull() )
+    myColorScale->Erase();
+  myOverlay->RemoveLayerItem( myColorScaleLayerItem );
+}
+
+Standard_Boolean V3d_LayerMgr::ColorScaleIsDisplayed() const
+{
+  return ( myColorScale.IsNull() ? Standard_False : myColorScale->IsDisplayed() );
+}
+
+Handle(Aspect_ColorScale) V3d_LayerMgr::ColorScale() const
+{
+  if ( myColorScale.IsNull() ) {
+    Handle(V3d_LayerMgr) that = this;
+    that->myColorScale = new V3d_ColorScale( this );
+    that->myColorScaleLayerItem = new V3d_ColorScaleLayerItem( that->myColorScale );
+  }
+
+  return myColorScale;
+}
+
+Standard_Boolean V3d_LayerMgr::Begin()
+{
+  if ( myOverlay.IsNull() )
+    return Standard_False;
+
+  const Handle(Aspect_Window) &theWin = View()->Window();
+  if ( theWin.IsNull() )
+    return Standard_False;
+
+  Standard_Integer aW( 0 ), aH( 0 );
+  theWin->Size( aW, aH );
+
+  myOverlay->Clear();
+  myOverlay->SetViewport( aW, aH ); //szv:!!!
+  myOverlay->Begin();
+  myOverlay->SetTextAttributes( Graphic3d_NOF_ASCII_MONO, Aspect_TODT_SUBTITLE, Quantity_Color() );
+  myOverlay->SetOrtho( 0, Max( aW, aH ), Max( aW, aH ), 0, Aspect_TOC_TOP_LEFT );
+
+  return Standard_True;
+}
+
+void V3d_LayerMgr::Redraw()
+{
+
+}
+
+void V3d_LayerMgr::End()
+{
+  if ( !myOverlay.IsNull() )
+    myOverlay->End();
+}