From a7a2fdc95d9135de53287de21f1cce985895950f Mon Sep 17 00:00:00 2001
From: Mike Kremer <mkremer@cs.rwth-aachen.de>
Date: Tue, 18 May 2010 12:06:52 +0000
Subject: [PATCH] Added message box informaing the user that a restart will be
 required to change the language settings.

git-svn-id: http://www.openflipper.org/svnrepo/OpenFlipper/branches/Free@9342 383ad7c9-94d9-4d36-a494-682f7c89f535
---
 widgets/optionsWidget/optionsWidget.cc | 21 ++++++++++++++++++---
 widgets/optionsWidget/optionsWidget.hh |  7 +++++++
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/widgets/optionsWidget/optionsWidget.cc b/widgets/optionsWidget/optionsWidget.cc
index fb907d3b..c568d61a 100644
--- a/widgets/optionsWidget/optionsWidget.cc
+++ b/widgets/optionsWidget/optionsWidget.cc
@@ -58,8 +58,8 @@ OptionsWidget::OptionsWidget(std::vector<PluginInfo>& _plugins, std::vector<KeyB
   : QWidget(parent),
     plugins_(_plugins),
     coreKeys_(_core),
-    keys_(_invKeys)
-
+    keys_(_invKeys),
+    translationIndexChanged_(false)
 {
   setupUi(this);
 
@@ -142,7 +142,6 @@ OptionsWidget::OptionsWidget(std::vector<PluginInfo>& _plugins, std::vector<KeyB
   progressDialog = new QProgressDialog(this);
   connect(progressDialog, SIGNAL(canceled()), this, SLOT(cancelDownload()));
 
-
   //colordialog
   connect(backgroundButton, SIGNAL(clicked()), this, SLOT(getBackgroundColor()) );
   connect(baseColorButton, SIGNAL(clicked()), this, SLOT(getBaseColor()) );
@@ -209,6 +208,10 @@ void OptionsWidget::switchStackedWidget() {
     slotPreviewStereoSettings();
 }
 
+void OptionsWidget::slotTranslationIndexChanged(int /*_index*/) {
+    translationIndexChanged_ = true;
+}
+
 void OptionsWidget::updateViewerSettings(int _row){
 
   updatingViewerSettings_ = true;
@@ -393,6 +396,9 @@ void OptionsWidget::showEvent ( QShowEvent * /*event*/ ) {
     translation->setCurrentIndex(1);
   else
     translation->setCurrentIndex(2);
+  
+  // Listen to changes...
+  connect(translation, SIGNAL(currentIndexChanged(int)), this, SLOT(slotTranslationIndexChanged(int)));
 
   updateVersionsTable();
 
@@ -657,6 +663,15 @@ void OptionsWidget::slotApply() {
   OpenFlipper::Options::defaultViewerLayout( viewerLayout->currentIndex() );
   OpenFlipper::Options::gridVisible( gridVisible->isChecked() );
 
+  // Show warning message that restart is required if language has been changed...
+  if(translationIndexChanged_) {
+    int restart = QMessageBox::information(this, tr("Restart required!"),
+                      tr("The changes will take effect after next restart. Do you want to close OpenFlipper now?"),
+                      QMessageBox::Yes | QMessageBox::No);
+                    
+    if(restart == QMessageBox::Yes) emit exit(0);
+  }
+  
   switch ( translation->currentIndex() ){
     case 0 : OpenFlipper::Options::translation("en_US");  break;
     case 1 : OpenFlipper::Options::translation("de_DE");  break;
diff --git a/widgets/optionsWidget/optionsWidget.hh b/widgets/optionsWidget/optionsWidget.hh
index bdb8cde3..641495de 100644
--- a/widgets/optionsWidget/optionsWidget.hh
+++ b/widgets/optionsWidget/optionsWidget.hh
@@ -208,6 +208,9 @@ private slots:
 
    // Update component of OpenFlipper
    void updateComponent();
+   
+   // Tracks whether another language has been selected
+   void slotTranslationIndexChanged(int);
 
 private:
    /** After checking for updates this variable will contain a list of filenames for which updates are available
@@ -221,6 +224,10 @@ private:
    /** Current filename of the plugin to be updated
     */
    QString currentUpdateName_;
+   
+   /** Used to track whether another language has been selected
+   */
+   bool translationIndexChanged_;
 
 
 };
-- 
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