Commit emails of the iDok project

["Apache" <apache AT savannah.psi.ch>]

Author: geus AT PSI.CH
Date: Fri Feb  8 15:48:51 2008
New Revision: 729

Log:
Implemented workaround for i18n translations when using webstart

Modified:
   branches/opensource/java/ch/idok/qtgui/DmsGui.java

Modified: branches/opensource/java/ch/idok/qtgui/DmsGui.java
==============================================================================
--- branches/opensource/java/ch/idok/qtgui/DmsGui.java  (original)
+++ branches/opensource/java/ch/idok/qtgui/DmsGui.java  Fri Feb  8 15:48:51 
2008
@@ -19,6 +19,10 @@
 
 package ch.idok.qtgui;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
@@ -65,19 +69,42 @@
             splash
                     .showMessage("                    Loading iDok 
Application...");
             QApplication.processEvents();
-            
-            // load translations
-            String locale = QLocale.system().name();
-            QTranslator translator = new QTranslator();
-            if (translator.load("classpath:ch/idok/qtgui/translations/iDok_" 
+ locale+ ".qm")){
-                QApplication.installTranslator(translator);
-            }             
+
+            // Load i18n translations
+            try {
+                /*
+                 * We download the translations file to the local file 
system in
+                 * order to work around a bug in QTranslator.load() when used
+                 * with Java webstart.
+                 */
+                String locale = QLocale.system().name();
+                l.fine("Locale used for i18n translations is " + locale);
+                Class<DmsGui> c = DmsGui.class;
+                File f;
+                f = copyToTemp(c.getResourceAsStream("translations/iDok_"
+                        + locale + ".qm"));
+                f.deleteOnExit();
+                l.fine("Wrote i18n translations to " + f.getPath());
+                QTranslator translator = new QTranslator();
+                if (translator.load(f.getPath())) {
+                    l.fine("i18n translations installed");
+                    QApplication.installTranslator(translator);
+                } else {
+                    l
+                            .warning("Could not install i18n translations, 
QTranslator returned with error code.");
+                }
+            } catch (IOException e) {
+                l.log(Level.WARNING,
+                        "Could not load i18n translations from resources", 
e);
+            }
+
             // Start GUI
             MainWindow d = new MainWindow();
             d.show();
             splash.finish(d);
             QApplication.exec();
-           // Shutdown application: Under some circumstances System.exit() is
+
+            // Shutdown application: Under some circumstances System.exit() 
is
             // necessary to get rid of all threads and thus to shutdown the 
Java
             // VM
             l.info("Exiting DmsGui.main()");
@@ -89,4 +116,17 @@
         }
     }
 
+    static protected File copyToTemp(InputStream is) throws IOException {
+        File t = File.createTempFile("idok_temp", null);
+        FileOutputStream os = new FileOutputStream(t);
+        byte[] buf = new byte[4096];
+        while (true) {
+            int numBytes = is.read(buf);
+            if (numBytes <= 0)
+                break;
+            os.write(buf, 0, numBytes);
+        }
+        os.close();
+        return t;
+    }
 }