From 22ae70665f18de761bc37dbfe809feadc03aa7c4 Mon Sep 17 00:00:00 2001
From: akl <akl@opencascade.com>
Date: Fri, 14 Sep 2007 15:54:52 +0000
Subject: [PATCH] NPAL16752 (SIGSEGV on cutpanes, cutlines, plot3D on
 cronoshexa.med file): Throw user's exception instead of SIGSEGV.

---
 src/VISU_I/VISU_CutLines_i.cc    |  7 ++++++-
 src/VISU_I/VISU_CutPlanes_i.cc   |  7 ++++++-
 src/VISU_I/VISU_Plot3D_i.cc      |  8 ++++++--
 src/VISU_I/VISU_StreamLines_i.cc | 10 ++++++++--
 4 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/src/VISU_I/VISU_CutLines_i.cc b/src/VISU_I/VISU_CutLines_i.cc
index 46132a1d..a74ed566 100644
--- a/src/VISU_I/VISU_CutLines_i.cc
+++ b/src/VISU_I/VISU_CutLines_i.cc
@@ -51,7 +51,12 @@ static int MYDEBUG = 0;
 int VISU::CutLines_i::IsPossible(Result_i* theResult, const char* theMeshName, VISU::Entity theEntity, 
 				 const char* theFieldName, int theIteration, int isMemoryCheck)
 {
-  return TSuperClass::IsPossible(theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck);
+  if(!TSuperClass::IsPossible(theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck))
+    return 0;
+  if(!TSuperClass::IsCompatibleCellTypes(theResult,theMeshName,theEntity,theFieldName,theIteration))
+    THROW_SALOME_CORBA_EXCEPTION("It is impossible to build presentation of this type,\nbecause of the source mesh contains not acceptable mesh elements!",
+				 SALOME::INTERNAL_ERROR);
+  return 1;
 }
 
 int VISU::CutLines_i::myNbPresent = 0;
diff --git a/src/VISU_I/VISU_CutPlanes_i.cc b/src/VISU_I/VISU_CutPlanes_i.cc
index a23d15bf..684f7f3d 100644
--- a/src/VISU_I/VISU_CutPlanes_i.cc
+++ b/src/VISU_I/VISU_CutPlanes_i.cc
@@ -44,7 +44,12 @@ static int MYDEBUG = 0;
 int VISU::CutPlanes_i::IsPossible(Result_i* theResult, const char* theMeshName, VISU::Entity theEntity, 
 				  const char* theFieldName, int theIteration, int isMemoryCheck)
 {
-  return TSuperClass::IsPossible(theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck);
+  if(!TSuperClass::IsPossible(theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck))
+    return 0;
+  if(!TSuperClass::IsCompatibleCellTypes(theResult,theMeshName,theEntity,theFieldName,theIteration))
+    THROW_SALOME_CORBA_EXCEPTION("It is impossible to build presentation of this type,\nbecause of the source mesh contains not acceptable mesh elements!",
+				 SALOME::INTERNAL_ERROR);
+  return 1;
 }
 
 
diff --git a/src/VISU_I/VISU_Plot3D_i.cc b/src/VISU_I/VISU_Plot3D_i.cc
index 396b3c97..94001b87 100644
--- a/src/VISU_I/VISU_Plot3D_i.cc
+++ b/src/VISU_I/VISU_Plot3D_i.cc
@@ -40,8 +40,12 @@ static int MYDEBUG = 0;
 int VISU::Plot3D_i::IsPossible(Result_i* theResult, const char* theMeshName, VISU::Entity theEntity,
 			       const char* theFieldName, int theIteration, int isMemoryCheck)
 {
-  return TSuperClass::IsPossible
-    (theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck);
+  if(!TSuperClass::IsPossible(theResult,theMeshName,theEntity,theFieldName,theIteration,isMemoryCheck))
+    return 0;
+  if(!TSuperClass::IsCompatibleCellTypes(theResult,theMeshName,theEntity,theFieldName,theIteration))
+    THROW_SALOME_CORBA_EXCEPTION("It is impossible to build presentation of this type,\nbecause of the source mesh contains not acceptable mesh elements!",
+				 SALOME::INTERNAL_ERROR);
+  return 1;
 }
 
 int VISU::Plot3D_i::myNbPresent = 0;
diff --git a/src/VISU_I/VISU_StreamLines_i.cc b/src/VISU_I/VISU_StreamLines_i.cc
index e3b8565b..b8449008 100644
--- a/src/VISU_I/VISU_StreamLines_i.cc
+++ b/src/VISU_I/VISU_StreamLines_i.cc
@@ -58,13 +58,19 @@ int VISU::StreamLines_i::IsPossible(Result_i* theResult, const char* theMeshName
     VISU::TVTKOutput* aDataSet = anIDMapper->GetVTKOutput();
     bool aResult = VISU_StreamLinesPL::IsPossible(aDataSet);
     MESSAGE("StreamLines_i::IsPossible - aResult = "<<aResult);
-    return aResult;
+    if(!aResult)
+      return 0;
   }catch(std::exception& exc){
     INFOS("Follow exception was occured :\n"<<exc.what());
+    return 0;
   }catch(...){
     INFOS("Unknown exception was occured!");
+    return 0;
   }
-  return 0;
+  if(!TSuperClass::IsCompatibleCellTypes(theResult,theMeshName,theEntity,theFieldName,theIteration))
+    THROW_SALOME_CORBA_EXCEPTION("It is impossible to build presentation of this type,\nbecause of the source mesh contains not acceptable mesh elements!",
+				 SALOME::INTERNAL_ERROR);
+  return 1;
 }
 
 
-- 
2.39.2