language selection UI

diylc/diylc-swing/src/org/diylc/images/IconLoader.java

@@ -66,7 +66,7 @@ public enum IconLoader {
       Node("node.png"), Web("web.png"), Guitar("guitar.png"), Scientist("scientist.png"), StarGrey("star_grey.png"), StarBlue("star_blue.png"), 
       JarBeanInto("jar_bean_into.png"), GraphEdgeDirected("graph_edge_directed.png"), LaserPointer("laserpointer.png"), TapeMeasure("tape_measure1.png"),
       Elements("elements1.png"), GraphNodes("graph_nodes.png"), User("user1.png"), FlexibleLeads("flexible_leads.png"), Pads("pads.png"), Lock("lock.png"),
-      Unlock("lock_open.png");
+      Unlock("lock_open.png"), Earth("earth.png");
 
   protected String name;
 

diylc/diylc-swing/src/org/diylc/swing/plugins/config/ConfigPlugin.java

@@ -21,14 +21,18 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStream;
 import java.util.EnumSet;
+import java.util.List;
 
 import org.apache.log4j.Logger;
+import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.appframework.miscutils.IConfigListener;
 import org.diylc.common.EventType;
 import org.diylc.common.IPlugIn;
 import org.diylc.common.IPlugInPort;
 import org.diylc.components.autocreate.SolderPadAutoCreator;
 import org.diylc.core.Theme;
 import org.diylc.images.IconLoader;
+import org.diylc.lang.TranslateUtil;
 import org.diylc.swing.ActionFactory;
 import org.diylc.swing.ISwingUI;
 
@@ -52,6 +56,7 @@ public class ConfigPlugin implements IPlugIn {
   public static final String COMPONENT_BROWSER = "componentBrowser";
   public static final String SEARCHABLE_TREE = "Searchable Tree";
   public static final String TABBED_TOOLBAR = "Tabbed Toolbar";
+  private static final String LANGUAGE_MENU = "Language";
 
   private ISwingUI swingUI;
 
@@ -132,6 +137,21 @@ public class ConfigPlugin implements IPlugIn {
     swingUI.injectMenuAction(
         ActionFactory.getInstance()
             .createConfigAction(plugInPort, "Sticky Points", IPlugInPort.STICKY_POINTS_KEY, true), CONFIG_MENU);
+       
+    try {
+      List<String> languages = TranslateUtil.getAvailableLanguages(); 
+      if (languages != null && languages.size() > 0) {
+        swingUI.injectSubmenu(LANGUAGE_MENU, IconLoader.Earth.getIcon(), CONFIG_MENU);
+        for(String language : languages) {
+          swingUI.injectMenuAction(
+              ActionFactory.getInstance().createToggleAction(language, IPlugInPort.LANGUAGE, LANGUAGE_MENU, IPlugInPort.LANGUAGE_DEFAULT),
+              LANGUAGE_MENU);       
+        }
+      }
+    } catch (Exception e) {
+      LOG.error("Error while setting up language menu", e);
+    }
+   
 
     File themeDir = new File("themes");
     if (themeDir.exists()) {
@@ -157,6 +177,15 @@ public class ConfigPlugin implements IPlugIn {
         COMPONENT_BROWSER_MENU);
     swingUI.injectMenuAction(ActionFactory.getInstance().createComponentBrowserAction(TABBED_TOOLBAR),
         COMPONENT_BROWSER_MENU);
+    
+    // notify the user that language selection is not immediate
+    ConfigurationManager.getInstance().addConfigListener(IPlugInPort.LANGUAGE, new IConfigListener() {
+      
+      @Override
+      public void valueChanged(String key, Object value) {
+        swingUI.showMessage("Language selection will be applied after the application is restarted.", "Language", ISwingUI.INFORMATION_MESSAGE);
+      }
+    });
   }
 
   @Override