private void OnBackendComboBoxChanged(object sender, EventArgs args)
{
if (selectedBackend >= 0)
{
// TODO: Prompt the user and make sure they really want to change
// which backend they are using.
// Remove the existing backend's preference page
if (backendPageId >= 0)
{
notebook.RemovePage(backendPageId);
backendPageId = -1;
backendPage = null;
}
// if yes (replace backend)
if (backendComboMap.ContainsKey(selectedBackend))
{
// Cleanup old backend
IBackend oldBackend = backendComboMap [selectedBackend];
Logger.Info("Cleaning up '{0}'...", oldBackend.Name);
try {
oldBackend.Cleanup();
} catch (Exception e) {
Logger.Warn("Exception cleaning up '{0}': {2}",
oldBackend.Name,
e.Message);
}
selectedBackend = -1;
}
}
IBackend newBackend = null;
if (backendComboMap.ContainsKey(backendComboBox.Active))
{
newBackend = backendComboMap [backendComboBox.Active];
}
// TODO: Set the new backend
Application.Backend = newBackend;
if (newBackend == null)
{
return;
}
selectedBackend = backendComboBox.Active;
// Add a backend prefs page if one exists
backendPage = newBackend.GetPreferencesWidget();
if (backendPage != null)
{
backendPage.Show();
Label l = new Label(GLib.Markup.EscapeText(newBackend.Name));
l.UseMarkup = false;
l.UseUnderline = false;
l.Show();
backendPageId =
notebook.AppendPage(backendPage, l);
// If the new backend is not configured, automatically switch
// to the backend's preferences page
if (!newBackend.Configured)
{
notebook.Page = backendPageId;
}
}
// Save the user preference
Application.Preferences.Set(Preferences.CurrentBackend,
newBackend.GetType().ToString());
//categoriesToHide = BuildNewCategoryList ();
//Application.Preferences.SetStringList (Preferences.HideInAllCategory,
// categoriesToHide);
RebuildCategoryTree();
}