From ec94f64d66139c87f83dbb14ba6b96f3345c8fc3 Mon Sep 17 00:00:00 2001
From: vsr <vsr@opencascade.com>
Date: Thu, 23 Oct 2014 18:43:52 +0400
Subject: [PATCH] Emit signal when user resets appication settings to defaults
 by pressing "Defaults" button in "Preferences" dialog box.

---
 src/LightApp/LightApp_Application.cxx    |  4 +++-
 src/LightApp/LightApp_Application.h      |  1 +
 src/LightApp/LightApp_Preferences.h      |  1 +
 src/LightApp/LightApp_PreferencesDlg.cxx | 20 +++++++++++---------
 src/LightApp/LightApp_PreferencesDlg.h   |  3 +++
 5 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/src/LightApp/LightApp_Application.cxx b/src/LightApp/LightApp_Application.cxx
index dac8913c9..3017896cf 100644
--- a/src/LightApp/LightApp_Application.cxx
+++ b/src/LightApp/LightApp_Application.cxx
@@ -1983,7 +1983,9 @@ LightApp_Preferences* LightApp_Application::preferences( const bool crt ) const
   that->myPrefs = _prefs_;
 
   connect( myPrefs, SIGNAL( preferenceChanged( QString&, QString&, QString& ) ),
-           this, SLOT( onPreferenceChanged( QString&, QString&, QString& ) ) );
+           this, SLOT( onPreferenceChanged( QString&, QString&, QString& ) ), Qt::UniqueConnection );
+  connect( myPrefs, SIGNAL( resetToDefaults() ),
+           this, SIGNAL( preferenceResetToDefaults() ), Qt::UniqueConnection );
 
   if ( !crt )
     return myPrefs;
diff --git a/src/LightApp/LightApp_Application.h b/src/LightApp/LightApp_Application.h
index 51c6f3486..3ea6cb1dd 100644
--- a/src/LightApp/LightApp_Application.h
+++ b/src/LightApp/LightApp_Application.h
@@ -187,6 +187,7 @@ signals:
   void                                studySaved();
   void                                studyClosed();
   void                                preferenceChanged( const QString&, const QString&, const QString& );
+  void                                preferenceResetToDefaults();
   void                                operationFinished( const QString&, const QString&, const QStringList& );
 
 public slots:
diff --git a/src/LightApp/LightApp_Preferences.h b/src/LightApp/LightApp_Preferences.h
index cda80799e..f6568fac7 100644
--- a/src/LightApp/LightApp_Preferences.h
+++ b/src/LightApp/LightApp_Preferences.h
@@ -60,6 +60,7 @@ protected:
 
 signals:
   void                 preferenceChanged( QString&, QString&, QString& );
+  void                 resetToDefaults();
 
 private slots:
   void                 onHelp();
diff --git a/src/LightApp/LightApp_PreferencesDlg.cxx b/src/LightApp/LightApp_PreferencesDlg.cxx
index 991cf2723..147370675 100644
--- a/src/LightApp/LightApp_PreferencesDlg.cxx
+++ b/src/LightApp/LightApp_PreferencesDlg.cxx
@@ -68,6 +68,7 @@ myPrefs( prefs ), mySaved ( false )
   QAbstractButton* impBtn = userButton( insertButton( tr( "IMPORT_BTN_TEXT" ) ) );
   if( impBtn )
     connect( impBtn, SIGNAL( clicked() ), this, SLOT( onImportPref() ) );
+  connect( this, SIGNAL( defaultPressed() ), prefs, SIGNAL( resetToDefaults() ) );
 
   setMinimumSize( 800, 600 );
 }
@@ -140,17 +141,18 @@ void LightApp_PreferencesDlg::onApply()
 /*! Restore default preferences*/
 void LightApp_PreferencesDlg::onDefault()
 {
-  if( SUIT_MessageBox::Ok == SUIT_MessageBox::question( this, tr( "WARNING" ), tr( "DEFAULT_QUESTION" ),
-                                                        SUIT_MessageBox::Ok | SUIT_MessageBox::Cancel,
-                                                        SUIT_MessageBox::Ok ) )
+  if ( SUIT_MessageBox::Ok == SUIT_MessageBox::question( this, tr( "WARNING" ), tr( "DEFAULT_QUESTION" ),
+							 SUIT_MessageBox::Ok | SUIT_MessageBox::Cancel,
+							 SUIT_MessageBox::Ok ) )
+  {
+    if ( myPrefs && myPrefs->resourceMgr() )
     {
-      if ( myPrefs && myPrefs->resourceMgr() )
-        {
-          QtxResourceMgr::WorkingMode prev = myPrefs->resourceMgr()->setWorkingMode( QtxResourceMgr::IgnoreUserValues );
-          myPrefs->retrieve();
-          myPrefs->resourceMgr()->setWorkingMode( prev );
-        }
+      QtxResourceMgr::WorkingMode prev = myPrefs->resourceMgr()->setWorkingMode( QtxResourceMgr::IgnoreUserValues );
+      myPrefs->retrieve();
+      myPrefs->resourceMgr()->setWorkingMode( prev );
     }
+    emit defaultPressed();
+  }
 }
 
 /*! Import preferences from some file */
diff --git a/src/LightApp/LightApp_PreferencesDlg.h b/src/LightApp/LightApp_PreferencesDlg.h
index 6ed946817..3953530e5 100644
--- a/src/LightApp/LightApp_PreferencesDlg.h
+++ b/src/LightApp/LightApp_PreferencesDlg.h
@@ -51,6 +51,9 @@ public:
   bool                  isSaved() { return mySaved; }
   void                  setSaved( bool saved ) { mySaved = saved; } 
 
+signals:
+  void                  defaultPressed();
+
 private slots:
   void                  onHelp();
   void                  onApply();
-- 
2.39.2