Add retranslator class to CalamaresUtils.

src/libcalamares/CMakeLists.txt

@@ -24,6 +24,7 @@ set( libSources
     utils/CalamaresUtils.cpp
     utils/CalamaresUtilsSystem.cpp
     utils/Logger.cpp
+    utils/Retranslator.cpp
 )
 
 include_directories(

src/libcalamares/utils/Retranslator.cpp

@@ -0,0 +1,54 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2014, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "Retranslator.h"
+
+#include <QEvent>
+
+
+namespace CalamaresUtils {
+
+
+Retranslator::Retranslator( QObject* parent,
+                            std::function< void ( void ) > retranslateFunc )
+    : QObject( parent )
+    , m_retranslateFunc( retranslateFunc )
+{
+    m_retranslateFunc();
+
+    parent->installEventFilter( this );
+}
+
+
+bool
+Retranslator::eventFilter( QObject* obj, QEvent* e )
+{
+    if ( obj == parent() )
+    {
+        if ( e->type() == QEvent::LanguageChange )
+        {
+            m_retranslateFunc();
+            return true;
+        }
+    }
+    // pass the event on to the base
+    return QObject::eventFilter( obj, e );
+}
+
+
+} // namespace CalamaresUtils

src/libcalamares/utils/Retranslator.h

@@ -0,0 +1,47 @@
+/* === This file is part of Calamares - <http://github.com/calamares> ===
+ *
+ *   Copyright 2014, Teo Mrnjavac <teo@kde.org>
+ *
+ *   Calamares is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   Calamares is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with Calamares. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CALAMARESUTILS_RETRANSLATOR_H
+#define CALAMARESUTILS_RETRANSLATOR_H
+
+#include <QObject>
+
+#include <functional>
+
+class QEvent;
+
+namespace CalamaresUtils
+{
+
+class Retranslator : public QObject
+{
+    Q_OBJECT
+public:
+    explicit Retranslator( QObject* parent,
+                           std::function< void( void ) > retranslateFunc );
+
+protected:
+    bool eventFilter( QObject* obj, QEvent* e ) override;
+
+private:
+    std::function< void( void ) > m_retranslateFunc;
+};
+
+} // namespace CalamaresUtils
+
+#endif // CALAMARESUTILS_RETRANSLATOR_H