From d38c026725b2a7d1f7818e4c2fb68a6c2451a589 Mon Sep 17 00:00:00 2001
From: apo <apo@opencascade.com>
Date: Thu, 13 Apr 2006 14:24:35 +0000
Subject: [PATCH] Fix on Bug12171   	Picking functionality is not work

---
 src/OBJECT/VISU_GaussPtsAct.cxx         | 54 +++++++++++++++----------
 src/OBJECT/VISU_GaussPtsDeviceActor.cxx |  2 +-
 2 files changed, 34 insertions(+), 22 deletions(-)

diff --git a/src/OBJECT/VISU_GaussPtsAct.cxx b/src/OBJECT/VISU_GaussPtsAct.cxx
index 0568b2f5..026be68a 100644
--- a/src/OBJECT/VISU_GaussPtsAct.cxx
+++ b/src/OBJECT/VISU_GaussPtsAct.cxx
@@ -621,7 +621,16 @@ int
 VISU_GaussPtsAct
 ::GetPickable()
 {
-  return myDeviceActor->GetPickable();
+  if(Superclass::GetPickable()){
+    if(vtkMapper* aMapper = GetMapper()){
+      if(vtkDataSet* aDataSet= aMapper->GetInput()){
+	aDataSet->Update();
+	return aDataSet->GetNumberOfCells() > 0;
+      }
+    }
+  }
+
+  return false;
 }
 
 //----------------------------------------------------------------------------
@@ -631,12 +640,15 @@ VISU_GaussPtsAct
 	       SVTK_SelectionEvent* theSelectionEvent,
 	       bool theIsHighlight)
 {
+  if ( !GetPickable() )
+    return false;
+
   myPreHighlightActor->SetVisibility(false);
   myCursorPyramid->SetVisibility(false);  
 
-  if (!myBarVisibility) {
+  if (!myBarVisibility)
     return false;
-  }
+
 
   if(!theIsHighlight)
     myLastObjPointID = -1;
@@ -710,17 +722,15 @@ void
 ChangeZoom(VISU_PickingSettings *thePickingSettings,
 	   vtkInteractorStyle* theInteractorStyle,
 	   int theInitialHasIndex,
-	   SVTK_Selector* theSelector,
+	   int theCurrentHasIndex,
 	   const Handle(SALOME_InteractiveObject)& theIO)
 {
-  int aCurrentHasIndex = theSelector->HasIndex(theIO);
-
-  if(theInitialHasIndex + aCurrentHasIndex == 1){
+  if(theInitialHasIndex + theCurrentHasIndex == 1){
     vtkRenderer *aRenderer = theInteractorStyle->GetCurrentRenderer();
     vtkCamera *aCamera = aRenderer->GetActiveCamera();
     vtkFloatingPointType aZoomFactor = thePickingSettings->GetZoomFactor();
     double aScale = aCamera->GetParallelScale();
-    if (!theInitialHasIndex && aCurrentHasIndex) {
+    if (!theInitialHasIndex && theCurrentHasIndex) {
       aCamera->SetParallelScale(aScale/aZoomFactor);
     }
     else {
@@ -736,34 +746,36 @@ VISU_GaussPtsAct
 	    SVTK_SelectionEvent* theSelectionEvent,
 	    bool theIsHighlight)
 { 
-  myIsHighlighted = false;
+  if ( !GetPickable() )
+    return false;
+
+  int anInitialHasIndex = myIsHighlighted && mySelectionMode == GaussPointSelection;
   Handle(SALOME_InteractiveObject) anIO = getIO();
-  int anInitialHasIndex = mySelector->HasIndex(anIO);
+  myIsHighlighted = false;
 
   Selection_Mode aSelectionMode = theSelectionEvent->mySelectionMode;
-  //
+
   if(!theIsHighlight && aSelectionMode == GaussPointSelection){
     mySelector->RemoveIObject(anIO);
 
     ChangeZoom(myPickingSettings,
 	       theInteractorStyle,
 	       anInitialHasIndex,
-	       mySelector.GetPointer(),
+	       false,
 	       anIO);
 
     return true;
   }
   
-  if (!myBarVisibility) {
+  if (!myBarVisibility)
     return false;
-  }
-  //
-  if(aSelectionMode == ActorSelection){
+
+
+  if(aSelectionMode == ActorSelection)
     return Superclass::Highlight(theInteractorStyle,
 				 theSelectionEvent,
 				 theIsHighlight);
-  }
-  //
+
   if(aSelectionMode == GaussPointSelection && !theSelectionEvent->myIsRectangle){
 
     vtkRenderer *aRenderer = theInteractorStyle->GetCurrentRenderer();
@@ -778,7 +790,7 @@ VISU_GaussPtsAct
       ChangeZoom(myPickingSettings,
 		 theInteractorStyle,
 		 anInitialHasIndex,
-		 mySelector.GetPointer(),
+		 false,
 		 anIO);
 
       return true;
@@ -819,7 +831,7 @@ VISU_GaussPtsAct
 	ChangeZoom(myPickingSettings,
 		   theInteractorStyle,
 		   anInitialHasIndex,
-		   mySelector.GetPointer(),
+		   true,
 		   anIO);
 
 	return true;
@@ -831,7 +843,7 @@ VISU_GaussPtsAct
   ChangeZoom(myPickingSettings,
 	     theInteractorStyle,
 	     anInitialHasIndex,
-	     mySelector.GetPointer(),
+	     false,
 	     anIO);
   
   return false;
diff --git a/src/OBJECT/VISU_GaussPtsDeviceActor.cxx b/src/OBJECT/VISU_GaussPtsDeviceActor.cxx
index 912c2e0a..0b72f021 100644
--- a/src/OBJECT/VISU_GaussPtsDeviceActor.cxx
+++ b/src/OBJECT/VISU_GaussPtsDeviceActor.cxx
@@ -157,7 +157,7 @@ VISU_GaussPtsDeviceActor
 ::GetPickable()
 {
   if(Superclass::GetPickable()){
-    if(vtkMapper* aMapper = GetPSMapper()){
+    if(vtkMapper* aMapper = GetMapper()){
       if(vtkDataSet* aDataSet= aMapper->GetInput()){
 	aDataSet->Update();
 	return aDataSet->GetNumberOfCells() > 0;
-- 
2.39.2