+ Localizations are not hardcoded anymore -- all translation files that exist

in the current installation get into the list now.
+ Chinese translation added (thanks to Satoshi Joh)
+ Czech translation added (thanks to Vit Pelcak)

src/config.cc

@@ -973,4 +973,12 @@ QString getProgramDataDir() throw()
   #endif
 }
 
+QString getLocDir() throw()
+{
+  if ( QDir( getProgramDataDir() ).cd( "locale" ) )
+    return getProgramDataDir() + "/locale";
+  else
+    return QCoreApplication::applicationDirPath() + "/locale";
+}
+
 }

src/config.hh

@@ -332,6 +332,8 @@ QString getUserQtCssFileName() throw( exError );
 /// /usr/share/apps/goldendict, under Windows C:/Program Files/GoldenDict.
 QString getProgramDataDir() throw();
 
+/// Returns the directory storing program localizized files (.qm).
+QString getLocDir() throw();
 }
 
 #endif

src/goldendict.pro

@@ -193,20 +193,17 @@ win32 {
 }
 RESOURCES += resources.qrc \
     flags.qrc
-TRANSLATIONS += locale/ru.ts
+TRANSLATIONS += locale/ru_RU.ts locale/zh_CN.ts locale/cs_CZ.ts
 
 # This makes qmake generate translations
 isEmpty(QMAKE_LRELEASE):QMAKE_LRELEASE = $$[QT_INSTALL_BINS]/lrelease
+updateqm.input = TRANSLATIONS
+updateqm.output = ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}.qm
+updateqm.commands = $$QMAKE_LRELEASE ${QMAKE_FILE_IN} -qm ${QMAKE_FILE_PATH}/${QMAKE_FILE_BASE}.qm
+updateqm.CONFIG += no_link
+QMAKE_EXTRA_COMPILERS += updateqm
 TS_OUT = $$TRANSLATIONS
-TS_OUT ~= s/.ts/.qm
-TSQM.name = lrelease \
-    ${QMAKE_FILE_IN}
-TSQM.input = TRANSLATIONS
-TSQM.output = $$TS_OUT
-TSQM.commands = $$QMAKE_LRELEASE \
-    ${QMAKE_FILE_IN}
-TSQM.CONFIG = no_link
-QMAKE_EXTRA_COMPILERS += TSQM
+TS_OUT ~= s/.ts/.qm/g
 PRE_TARGETDEPS += $$TS_OUT
 
 # LibZip

src/main.cc

@@ -106,8 +106,7 @@ int main( int argc, char ** argv )
 
   QTranslator translator;
 
-  if ( !translator.load( QString( Config::getProgramDataDir() ) + "/locale/" + localeName ) )
-    translator.load( QCoreApplication::applicationDirPath() + "/locale/" + localeName );
+  translator.load( Config::getLocDir() + "/" + localeName );
 
   app.installTranslator( &translator );
 

src/preferences.cc

@@ -1,5 +1,7 @@
 #include "preferences.hh"
 #include "keyboardstate.hh"
+#include "language.hh"
+#include "langcoder.hh"
 #include <QMessageBox>
 
 Preferences::Preferences( QWidget * parent, Config::Preferences const & p ):
@@ -36,8 +38,28 @@ Preferences::Preferences( QWidget * parent, Config::Preferences const & p ):
   // Load values into form
 
   ui.interfaceLanguage->addItem( tr( "System default" ), QString() );
-  ui.interfaceLanguage->addItem( QIcon( ":/flags/us.png" ), tr( "English" ), QString( "en_US" ) );
-  ui.interfaceLanguage->addItem( QIcon( ":/flags/ru.png" ), tr( "Russian" ), QString( "ru_RU" ) );
+  ui.interfaceLanguage->addItem( QIcon( ":/flags/us.png" ), Language::localizedNameForId( LangCoder::code2toInt( "en" ) ), QString( "en_US" ) );
+
+  // See which other translations do we have
+
+  QStringList availLocs = QDir( Config::getLocDir() ).entryList( QStringList( "*.qm" ),
+                                                                 QDir::Files );
+
+  // We need to sort by language name -- otherwise list looks really weird
+  QMap< QString, QPair< QIcon, QString > > sortedLocs;
+
+  for( QStringList::iterator i = availLocs.begin(); i != availLocs.end(); ++i )
+  {
+    // Here we assume the xx_YY naming, where xx is language and YY is region.
+    QString lang = i->mid( 0, 2 );
+    sortedLocs[ Language::localizedNameForId( LangCoder::code2toInt( lang.toAscii().data() ) ) ]
+        = QPair< QIcon, QString >( QIcon( QString( ":/flags/%1.png" ).arg( i->mid( 3, 2 ).toLower() ) ),
+                                   i->mid( 0, i->size() - 3 ) );
+  }
+
+  for( QMap< QString, QPair< QIcon, QString > >::iterator i = sortedLocs.begin();
+       i != sortedLocs.end(); ++i )
+    ui.interfaceLanguage->addItem( i.value().first, i.key(), i.value().second );
 
   for( int x = 0; x < ui.interfaceLanguage->count(); ++x )
     if ( ui.interfaceLanguage->itemData( x ).toString() == p.interfaceLanguage )