OCC functionality moving out from the widget

[modules/hydro.git] / src / HYDROCurveCreator / CurveCreator_Utils.cxx

diff --git a/src/HYDROCurveCreator/CurveCreator_Utils.cxx b/src/HYDROCurveCreator/CurveCreator_Utils.cxx
index 15396cdc6626a8105e7884dc537285d32efc324a..73b429b446db6a5a20047c7bf34a2f5c4d1163e4 100644 (file)
--- a/src/HYDROCurveCreator/CurveCreator_Utils.cxx
+++ b/src/HYDROCurveCreator/CurveCreator_Utils.cxx
@@ -42,12 +42,13 @@
 #include <TopExp_Explorer.hxx>
 #include <BRep_Tool.hxx>
 #include <GeomAPI_ProjectPointOnCurve.hxx>
+#include <SelectMgr_EntityOwner.hxx>
 
 #include <ProjLib.hxx>
 #include <ElSLib.hxx>
 
 const double LOCAL_SELECTION_TOLERANCE = 0.0001;
-const int SCENE_PIXEL_TOLERANCE = 10;
+const int    SCENE_PIXEL_TOLERANCE = 10;
 
 //=======================================================================
 // function : ConvertClickToPoint()
@@ -68,28 +69,52 @@ void CurveCreator_Utils::ConvertPointToClick( const gp_Pnt& thePoint,
 gp_Pnt CurveCreator_Utils::ConvertClickToPoint( int x, int y, Handle(V3d_View) aView )
 {
   return GEOMUtils::ConvertClickToPoint( x, y, aView );
-  /*
-  V3d_Coordinate XEye, YEye, ZEye, XAt, YAt, ZAt;
-  aView->Eye( XEye, YEye, ZEye );
-
-  aView->At( XAt, YAt, ZAt );
-  gp_Pnt EyePoint( XEye, YEye, ZEye );
-  gp_Pnt AtPoint( XAt, YAt, ZAt );
-
-  gp_Vec EyeVector( EyePoint, AtPoint );
-  gp_Dir EyeDir( EyeVector );
-
-  gp_Pln PlaneOfTheView = gp_Pln( AtPoint, EyeDir );
-  Standard_Real X, Y, Z;
-  aView->Convert( x, y, X, Y, Z );
-  gp_Pnt ConvertedPoint( X, Y, Z );
-
-  gp_Pnt2d ConvertedPointOnPlane = ProjLib::Project( PlaneOfTheView, ConvertedPoint );
-  gp_Pnt ResultPoint = ElSLib::Value( ConvertedPointOnPlane.X(), ConvertedPointOnPlane.Y(), PlaneOfTheView );
-  return ResultPoint;
-  */
 }
 
+std::list<float> CurveCreator_Utils::getSelectedPoints( Handle(AIS_InteractiveContext) theContext )
+{
+  std::list<float> aSelectedPoints;
+
+  gp_Pnt aPnt;
+  for ( theContext->InitSelected(); theContext->MoreSelected(); theContext->NextSelected() ) {
+    TopoDS_Vertex aVertex;
+    TopoDS_Shape aShape = theContext->SelectedShape();
+    if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
+      aVertex = TopoDS::Vertex( theContext->SelectedShape() );
+    else {
+      Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
+      if ( !anOwner.IsNull() ) {
+        Handle(AIS_InteractiveObject) anAIS = Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
+        if ( !anAIS.IsNull() ) {
+          Handle(AIS_Point) aPoint = Handle(AIS_Point)::DownCast( anAIS);
+          if ( !aPoint.IsNull() )
+            aVertex = TopoDS::Vertex( aPoint->Vertex() );
+        }
+        if ( aVertex.IsNull() ) {
+          // the following happens if there are no points in the current curve, there is only a shape
+          /*Handle(StdSelect_BRepOwner) aBrepOwner = Handle(StdSelect_BRepOwner)::DownCast(anOwner);
+          if ( aBrepOwner.IsNull() )
+            continue;
+          if ( aBrepOwner->HasShape() ) {
+            const TopoDS_Shape& aShape = aBrepOwner->Shape();
+            if ( !aShape.IsNull() && aShape.ShapeType() == TopAbs_VERTEX )
+            {
+              aVertex = TopoDS::Vertex( aShape );
+            }
+          }*/
+        }
+      }
+    }
+    if ( aVertex.IsNull() )
+      continue;
+    aPnt = BRep_Tool::Pnt( aVertex );
+    aSelectedPoints.push_back( aPnt.X() );
+    aSelectedPoints.push_back( aPnt.Y() );
+    aSelectedPoints.push_back( aPnt.Z() );
+  }
+
+  return aSelectedPoints;
+}
 //=======================================================================
 // function : setLocalPointContext
 // purpose  : Open/close the viewer local context
@@ -139,6 +164,35 @@ void CurveCreator_Utils::setLocalPointContext(
   }
 }
 
+bool CurveCreator_Utils::getNeighbourPoints( Handle(AIS_InteractiveContext) theContext,
+                                             Handle(V3d_View) theView,
+                                             const int theX, const int theY,
+                                             gp_Pnt& thePoint, gp_Pnt& thePoint1,
+                                             gp_Pnt& thePoint2 )
+{
+  bool isFoundPoint = false;
+  if ( theContext.IsNull() )
+    return isFoundPoint;
+
+  for ( theContext->InitSelected(); theContext->MoreSelected() && !isFoundPoint;
+        theContext->NextSelected() ) {
+    TopoDS_Shape aTShape = theContext->SelectedShape();
+    if ( !aTShape.IsNull() && aTShape.ShapeType() == TopAbs_VERTEX )
+      continue;
+    else {
+      Handle(SelectMgr_EntityOwner) anOwner = theContext->SelectedOwner();
+      if ( anOwner.IsNull() )
+        continue;
+      const TopLoc_Location& aLocation = anOwner->Location();
+      Handle(AIS_InteractiveObject) anAIS =
+                        Handle(AIS_InteractiveObject)::DownCast( anOwner->Selectable() );
+      isFoundPoint = CurveCreator_Utils::pointOnObject( theView, anAIS, theX, theY, thePoint,
+                                                        thePoint1, thePoint2 );
+    }
+  }
+  return isFoundPoint;
+}
+
 bool CurveCreator_Utils::pointOnObject( Handle(V3d_View) theView,
                                         Handle(AIS_InteractiveObject) theObject,
                                         const int theX, const int theY,