mainwindow reloadable, e.g. when translation changes

git-svn-id: http://cpunk.de/svn/src/gpg4usb/trunk@741 34ebc366-c3a9-4b3c-9f84-69acf7962910

5 files changed, 68 insertions, 26 deletions

diff --git a/main.cpp b/main.cpp
index 6321e02..d170967 100644
--- a/main.cpp
+++ b/main.cpp
@@ -68,29 +68,6 @@ int main(int argc, char *argv[])
     qDebug() << "gpg4usb non portable build";
 #endif
 
-    QSettings::setDefaultFormat(QSettings::IniFormat);
-
-    QSettings settings;
-    QString lang = settings.value("int/lang", QLocale::system().name()).toString();
-    if (lang.isEmpty()) {
-        lang = QLocale::system().name();
-    }
-
-    //internationalize
-    QTranslator translator;
-    translator.load("ts/gpg4usb_" +  lang,
-                    appPath);
-    app.installTranslator(&translator);
-
-    // make shortcuts system and language independent
-    QTranslator translator2;
-#ifdef _WIN32
-    translator2.load("ts/qt_windows_" + lang, appPath);
-#else
-    translator2.load("ts/qt_linux_" + lang, appPath);
-#endif
-    app.installTranslator(&translator2);
-
     /*QLocale ql(lang);
     foreach(QLocale l , QLocale::matchingLocales(ql.language(), ql.script(), ql.country())) {
         qDebug() << "l: " <<  l.bcp47Name();
@@ -102,10 +79,44 @@ int main(int argc, char *argv[])
     QString styleSheet = QLatin1String(file.readAll());
     qApp->setStyleSheet(styleSheet);
 
-    MainWindow *window = new MainWindow();
-    window->show();
 
-    return app.exec();
+    /**
+     * internationalisation. loop to restart mainwindow
+     * with changed translation when settings change.
+     */
+    QSettings::setDefaultFormat(QSettings::IniFormat);
+    QSettings settings;
+    QTranslator translator, translator2;
+    int return_from_event_loop_code;
+
+#ifdef _WIN32
+    QString qtTransPrefix = "ts/qt_windows_";
+#else
+    QString qtTransPrefix = "ts/qt_linux_";
+#endif
+
+    do {
+        app.removeTranslator(&translator);
+        app.removeTranslator(&translator2);
+
+        QString lang = settings.value("int/lang", QLocale::system().name()).toString();
+        if (lang.isEmpty()) {
+            lang = QLocale::system().name();
+        }
+
+        translator.load("ts/gpg4usb_" +  lang, appPath);
+        app.installTranslator(&translator);
+
+        // make shortcuts system and language independent
+        translator2.load(qtTransPrefix + lang, appPath);
+        app.installTranslator(&translator2);
+
+        MainWindow window;
+        return_from_event_loop_code = app.exec();
+
+    } while( return_from_event_loop_code == RESTART_CODE);
+
+    return  return_from_event_loop_code;
 }
 
 
diff --git a/mainwindow.cpp b/mainwindow.cpp
index e247d19..1813bdc 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -873,6 +873,9 @@ void MainWindow::fileDecrypt()
 
 void MainWindow::openSettingsDialog()
 {
+
+    QString preLang = settings.value("int/lang").toString();
+
     new SettingsDialog(this);
     // Iconsize
     QSize iconSize = settings.value("toolbar/iconsize", QSize(32, 32)).toSize();
@@ -888,6 +891,14 @@ void MainWindow::openSettingsDialog()
         closeAttachmentDock();
     }
 
+    // restart mainwindow if langugage changed
+    if(preLang != settings.value("int/lang").toString()) {
+        if(edit->maybeSaveAnyTab()) {
+            saveSettings();
+            qApp->exit(RESTART_CODE);
+        }
+    }
+
 }
 
 void MainWindow::cleanDoubleLinebreaks()
diff --git a/mainwindow.h b/mainwindow.h
index 692c0e2..5c972e3 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -56,6 +56,7 @@ class QApplication;
 class QDockWidget;
 QT_END_NAMESPACE
 
+const int RESTART_CODE = 1000;
 
 /**
  * @brief
diff --git a/wizard.cpp b/wizard.cpp
index 4b64a7d..cf1a47b 100644
--- a/wizard.cpp
+++ b/wizard.cpp
@@ -27,6 +27,7 @@ Wizard::Wizard(GpgME::GpgContext *ctx, KeyMgmt *keyMgmt, QWidget *parent)
 {
     mCtx=ctx;
     mKeyMgmt=keyMgmt;
+    mParent=parent;
     IntroPage *introPage = new IntroPage();
     KeyGenPage *keyGenPage = new KeyGenPage(mCtx);
     ImportPage *importPage = new ImportPage(mCtx,mKeyMgmt);
@@ -186,6 +187,8 @@ bool ImportPage::importKeysFromGpg4usb()
         return false;
     }
 
+    importConfFromGpg4usb(dir);
+
     QFile secRing(dir+"/keydb/secring.gpg");
     QFile pubRing(dir+"/keydb/pubring.gpg");
 
@@ -213,9 +216,23 @@ bool ImportPage::importKeysFromGpg4usb()
         QByteArray inBuffer = secRing.readAll();
         mKeyMgmt->importKeys(inBuffer);
     }
+
+    qApp->exit();
     return true;
 }
 
+bool ImportPage::importConfFromGpg4usb(QString dir) {
+    QString path = dir+"/conf/gpg4usb.ini";
+    qDebug() << "import old conf from: " << path;
+    QSettings oldconf(path, QSettings::IniFormat, this);
+    QSettings actualConf;
+    foreach(QString key, oldconf.allKeys()) {
+        qDebug() << key << ": " << oldconf.value(key);
+        actualConf.setValue(key, oldconf.value(key));
+    }
+
+}
+
 bool ImportPage::importKeysFromGnupg()
 {
     // first get gnupghomedir and check, if it exists
diff --git a/wizard.h b/wizard.h
index 702e3c8..e451a28 100644
--- a/wizard.h
+++ b/wizard.h
@@ -42,6 +42,7 @@ public:
 private:
     GpgME::GpgContext *mCtx;
     KeyMgmt *mKeyMgmt;
+    QWidget *mParent;
 };
 
 class IntroPage : public QWizardPage
@@ -87,6 +88,7 @@ private slots:
       */
     bool importKeysFromGnupg();
     bool importKeysFromGpg4usb();
+    bool importConfFromGpg4usb(QString dir);
 
 private:
     KeyMgmt *mKeyMgmt;