From 5415c85f8250d50b54c869ad712ef53796c58a29 Mon Sep 17 00:00:00 2001
From: adv <adv@opencascade.com>
Date: Thu, 29 Aug 2013 05:41:08 +0000
Subject: [PATCH] Main "Apply" principles for HYDRO operations corrected.

---
 src/HYDROGUI/HYDROGUI_Operation.cxx | 41 ++++++++++++++++++++++++-----
 1 file changed, 34 insertions(+), 7 deletions(-)

diff --git a/src/HYDROGUI/HYDROGUI_Operation.cxx b/src/HYDROGUI/HYDROGUI_Operation.cxx
index 9bdf11e0..1b132b68 100644
--- a/src/HYDROGUI/HYDROGUI_Operation.cxx
+++ b/src/HYDROGUI/HYDROGUI_Operation.cxx
@@ -36,6 +36,8 @@
 #include <SUIT_MessageBox.h>
 #include <SUIT_Study.h>
 
+#include <QApplication>
+
 HYDROGUI_Operation::HYDROGUI_Operation( HYDROGUI_Module* theModule )
 : LightApp_Operation(),
   myModule( theModule ),
@@ -82,8 +84,6 @@ void HYDROGUI_Operation::startOperation()
 {
   LightApp_Operation::startOperation();
 
-  doc()->StartOperation();
-
   if( inputPanel() )
   {
     myModule->getApp()->desktop()->addDockWidget( Qt::RightDockWidgetArea, inputPanel() );
@@ -93,8 +93,6 @@ void HYDROGUI_Operation::startOperation()
 
 void HYDROGUI_Operation::abortOperation()
 {
-  doc()->AbortOperation();
-
   LightApp_Operation::abortOperation();
 
   if( inputPanel() )
@@ -103,8 +101,6 @@ void HYDROGUI_Operation::abortOperation()
 
 void HYDROGUI_Operation::commitOperation()
 {
-  doc()->CommitOperation( HYDROGUI_Tool::ToExtString( getName() ) );
-
   LightApp_Operation::commitOperation();
 
   if( inputPanel() )
@@ -133,15 +129,46 @@ Handle_HYDROData_Document HYDROGUI_Operation::doc() const
 
 void HYDROGUI_Operation::onApply()
 {
+  QApplication::setOverrideCursor( Qt::WaitCursor );
+
+  // Open transaction in the model document
+  doc()->StartOperation();
+
   int anUpdateFlags = 0;
   QString anErrorMsg;
-  if( processApply( anUpdateFlags, anErrorMsg ) )
+
+  bool aResult = false;
+  
+  try
+  {
+    aResult = processApply( anUpdateFlags, anErrorMsg );
+  }
+  catch ( Standard_Failure )
+  {
+    Handle(Standard_Failure) aFailure = Standard_Failure::Caught();
+    anErrorMsg = aFailure->GetMessageString();
+    aResult = false;
+  }
+  catch ( ... )
+  {
+    aResult = false;
+  }
+  
+  QApplication::restoreOverrideCursor();
+
+  if ( aResult )
   {
     module()->update( anUpdateFlags );
+
+    // Commit transaction in the model document
+    doc()->CommitOperation( HYDROGUI_Tool::ToExtString( getName() ) );
     commit();
   }
   else
   {
+    // Abort transaction in the model document
+    doc()->AbortOperation();
+
     QString aMsg = tr( "INPUT_VALID_DATA" );
     if( !anErrorMsg.isEmpty() )
       aMsg.prepend( anErrorMsg + "\n" );
-- 
2.30.2