From f5595f93e1c2df6fc2b6a615a162174421bd2cd4 Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Thu, 1 Dec 2005 11:48:43 +0000
Subject: [PATCH] To implement picking for geometrical spheres represntation

---
 src/OBJECT/VISU_GaussPtsAct.cxx     | 30 +++++++++++++++--------------
 src/PIPELINE/VISU_GaussPointsPL.cxx |  7 +++++++
 src/PIPELINE/VISU_GaussPointsPL.hxx |  4 ++++
 3 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/src/OBJECT/VISU_GaussPtsAct.cxx b/src/OBJECT/VISU_GaussPtsAct.cxx
index 2d579106..592ccf2b 100644
--- a/src/OBJECT/VISU_GaussPtsAct.cxx
+++ b/src/OBJECT/VISU_GaussPtsAct.cxx
@@ -192,8 +192,6 @@ VISU_GaussPtsAct
   Superclass::ShallowCopyPL(thePipeLine);
 
   VISU_GaussPointsPL* aPipeLine = dynamic_cast<VISU_GaussPointsPL*>(thePipeLine);
-  //myDeviceActor->ShallowCopyPL(aPipeLine);
-  //myDeviceActor->GetPipeLine()->SetMagnification( aPipeLine->GetMagnification() );
 }
 
 
@@ -202,14 +200,14 @@ vtkMapper*
 VISU_GaussPtsAct
 ::GetMapper()
 {
-  return GetCurrentPL()->GetMapper();
+  return Superclass::GetMapper();
 }
 
 float* 
 VISU_GaussPtsAct
 ::GetBounds()
 {
-  return myDeviceActor->GetBounds();
+  return GetMapper()->GetBounds();
 }
 
 vtkDataSet* 
@@ -348,6 +346,9 @@ VISU_GaussPtsAct
 
   myDeviceActor->SetPipeLine(GetGaussPointsPL());
   myCurrentPL = myDeviceActor->GetPipeLine();
+
+  myMapper->SetInput(myCurrentPL->GetPickableDataSet());
+  SetMapper(myMapper.GetPointer());
 }
 
 void
@@ -494,9 +495,11 @@ bool VISU_GaussPtsAct::IsInfinitive()
 }
 
 //----------------------------------------------------------------------------
-bool VISU_GaussPtsAct::PreHighlight(vtkInteractorStyle* theInteractorStyle, 
-				    SVTK_SelectionEvent* theSelectionEvent,
-				    bool theIsHighlight)
+bool
+VISU_GaussPtsAct
+::PreHighlight(vtkInteractorStyle* theInteractorStyle, 
+	       SVTK_SelectionEvent* theSelectionEvent,
+	       bool theIsHighlight)
 {
   myPreHighlightActor->SetVisibility(false);
   myCursorPyramid->SetVisibility(false);  
@@ -594,9 +597,11 @@ ChangeZoom(VISU_PickingSettings *thePickingSettings,
   
 }
 
-bool VISU_GaussPtsAct::Highlight(vtkInteractorStyle* theInteractorStyle, 
-				 SVTK_SelectionEvent* theSelectionEvent,
-				 bool theIsHighlight)
+bool
+VISU_GaussPtsAct
+::Highlight(vtkInteractorStyle* theInteractorStyle, 
+	    SVTK_SelectionEvent* theSelectionEvent,
+	    bool theIsHighlight)
 { 
   Handle(SALOME_InteractiveObject) anIO = getIO();
   int anInitialHasIndex = mySelector->HasIndex(anIO);
@@ -790,7 +795,7 @@ VISU_GaussPtsAct
     }
     //
     // myTextActor
-    std::string aString=aStr.str();
+    std::string aString = aStr.str();
     myTextActor->SetModePosition(myPickingSettings->GetInfoWindowPosition());
     myTextActor->SetTransparency(myPickingSettings->GetInfoWindowTransparency());
     myTextActor->SetWorldPoint(aWorldCoord);
@@ -948,9 +953,6 @@ VISU_GaussPtsAct1
 
   VISU_GaussPointsPL* aPipeLine = dynamic_cast<VISU_GaussPointsPL*>(thePipeLine);
 
-  //myInsideDeviceActor->ShallowCopyPL(aPipeLine);
-  //myInsideDeviceActor->GetPipeLine()->SetMagnification( aPipeLine->GetMagnification() );
-
   myDeviceActor->ShallowCopyPL(aPipeLine);
 
   // Restore implicit function
diff --git a/src/PIPELINE/VISU_GaussPointsPL.cxx b/src/PIPELINE/VISU_GaussPointsPL.cxx
index d3e46480..0ec6d3a9 100644
--- a/src/PIPELINE/VISU_GaussPointsPL.cxx
+++ b/src/PIPELINE/VISU_GaussPointsPL.cxx
@@ -166,6 +166,13 @@ VISU_GaussPointsPL
   return myPSMapper;
 }
 
+vtkDataSet* 
+VISU_GaussPointsPL
+::GetPickableDataSet()
+{
+  return myGeomFilter->GetOutput();
+}
+
 //----------------------------------------------------------------------------
 void
 VISU_GaussPointsPL
diff --git a/src/PIPELINE/VISU_GaussPointsPL.hxx b/src/PIPELINE/VISU_GaussPointsPL.hxx
index 37c8a796..19e00796 100644
--- a/src/PIPELINE/VISU_GaussPointsPL.hxx
+++ b/src/PIPELINE/VISU_GaussPointsPL.hxx
@@ -79,6 +79,10 @@ public:
   VISU_OpenGLPointSpriteMapper*
   GetPSMapper();
 
+  //! Get an intermediate dataset that can be picked  
+  vtkDataSet*
+  GetPickableDataSet();
+
   //! Redefined method for initialization of the pipeline.
   virtual
   void
-- 
2.39.2