// You'll have to change the definition in the header file too, if any
static void MainWindow::show_app(MainWindow *data){
    data->show();
    //crash here:
//    this->show();
    //this works fine:
    app_indicator_set_status(appindicator, APP_INDICATOR_STATUS_PASSIVE);
}

void MainWindow::make_indicator()
{
    if(appindicator){
        //appindicator has already been created
        return;
    }
    appindicator = app_indicator_new("Format Junkie Indicator", "formatjunkie", APP_INDICATOR_CATEGORY_APPLICATION_STATUS);
    GtkWidget* showapp_option;
    GtkWidget* add_audio_option;
    //GtkWidget* subitem3;
    GtkWidget* indicatormenu = gtk_menu_new();
    GtkWidget* item = gtk_menu_item_new_with_label("Format Junkie main menu");
    gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), indicatormenu);

    showapp_option = gtk_menu_item_new_with_label("Show App!");
    g_signal_connect(showapp_option, "activate", G_CALLBACK(&MainWindow::show_app), this);
    gtk_menu_shell_append(GTK_MENU_SHELL(indicatormenu), showapp_option);

    add_audio_option = gtk_menu_item_new_with_label("Add audio files");
    g_signal_connect(add_audio_option, "activate", G_CALLBACK(&MainWindow::add_audio_files), this);
    gtk_menu_shell_append(GTK_MENU_SHELL(indicatormenu), add_audio_option);
/*
    subitem3 = gtk_menu_item_new_with_label("Quit");
    g_signal_connect(subitem3, "activate", G_CALLBACK(quit_from_indicator), appindicator);
    gtk_menu_shell_append(GTK_MENU_SHELL(menu), subitem3);*/
    gtk_widget_show_all(indicatormenu);
    app_indicator_set_status(appindicator, APP_INDICATOR_STATUS_ACTIVE);
    app_indicator_set_attention_icon(appindicator, "dialog-warning");

    app_indicator_set_menu(appindicator, GTK_MENU (indicatormenu));
}