From 8fab12198bd5054cf11c2753ebc2252d51bf977d Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Wed, 17 Apr 2013 09:26:00 +0000
Subject: [PATCH] Fix problem that user material database is not watched by
 resource manager when file is first time created.

---
 src/Material/Material_ResourceMgr.cxx | 25 ++++++++++++++++++++++++-
 src/Material/Material_ResourceMgr.h   |  1 +
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/src/Material/Material_ResourceMgr.cxx b/src/Material/Material_ResourceMgr.cxx
index 59ca3b65f..9b38b3cb2 100644
--- a/src/Material/Material_ResourceMgr.cxx
+++ b/src/Material/Material_ResourceMgr.cxx
@@ -22,6 +22,7 @@
 
 #include "Material_ResourceMgr.h"
 
+#include <QFileInfo>
 #include <QFileSystemWatcher>
 #include <QThread>
 
@@ -175,7 +176,10 @@ void Material_ResourceMgr::watchUserFile( bool on )
   if ( on ) {
     if ( !myWatcher ) {
       myWatcher = new QFileSystemWatcher( this );
-      myWatcher->addPath( userFileName( appName() ) );
+      QFileInfo ufile = userFileName( appName() );
+      if ( ufile.exists() ) {
+	myWatcher->addPath( ufile.filePath() );
+      }
       connect( myWatcher, SIGNAL( fileChanged( QString ) ), this, SLOT( update() ) );
     }
   }
@@ -187,6 +191,25 @@ void Material_ResourceMgr::watchUserFile( bool on )
   }
 }
 
+/*!
+  \brief This function is called after user configuration file is saved.
+  \internal
+*/
+void Material_ResourceMgr::saved()
+{
+  if ( resourceMgr() != this ) {
+    resourceMgr()->saved();
+  }
+  else if ( myWatcher ) {
+    QStringList files = myWatcher->files();
+    QFileInfo ufile = userFileName( appName() );
+    if ( ufile.exists() && !files.contains( ufile.filePath() ) ) {
+      myWatcher->addPath( ufile.filePath() );
+      update();
+    }
+  }
+}
+
 /*!
   \brief Update user database slot
   \internal
diff --git a/src/Material/Material_ResourceMgr.h b/src/Material/Material_ResourceMgr.h
index 91e4abda4..6cdfc75d6 100644
--- a/src/Material/Material_ResourceMgr.h
+++ b/src/Material/Material_ResourceMgr.h
@@ -57,6 +57,7 @@ signals:
 
 private:
   void watchUserFile( bool );
+  void saved();
 
 private slots:
   void update();