workhorse_ui.cpp

/*
    workhorse_ui.cpp - LV2 Toolkit UI Example

    Copyright (C) 2012  Michael Fisher <mfisher31@gmail.com>

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
    published by the Free Software Foundation; either version 2 of
    the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <iostream>
#include <string>

#include <lvtk/gtkui.hpp>

#include "workhorse.h"

using namespace lvtk;
using namespace Gtk;

using std::cout;

using Glib::ustring;

/* The GtkUI mixin is added to UI below.  It implements the
   widget() method for you, initializes gtkmm, and provides
   an add() method for the main widget.

   You aren't required, but highly recommended, to create
   your main widget in the UI's ctor. */

class WorkhorseGtk : public UI<WorkhorseGtk, GtkUI<true>,
                            URID<true>, UIResize<false>,
                            DataAccess<false>, Parent<false>,
                            InstanceAccess<false> >
{
public:

    WorkhorseGtk (const char* plugin_uri)
        : plugin (NULL)
    {
        // check instance access
        setup_instance_access();

        // check for a parent
        if (LV2UI_Widget* parent = get_parent())
            std::cout << "[WorkhorseGtk] got a parent\n";
        else
            std::cout << "[WorkhorseGtk] didn't get a parent\n";

        /* Create the main widget. This isn't functional. Instead
       of a plain Gtk::Button, you can add any Gtk::Widget
           as the Main Widget */
        Button *btn = manage (new Button(ustring("Workhorse")));

        /* Add the main widget */
        add (*btn);
    }

private:

    void
    setup_instance_access()
    {
        /* Exercise instance access Feature */
        plugin = get_instance();

        if (plugin) {
            cout << "[WorkhorseGtk] got plugin instance\n";
        } else {
            cout << "[WorkhorseGtk] didn't get plugin instance\n";
            plugin = 0;
        }
    }

    /* The Plugin Instance */
    Handle plugin;

};

int _ = WorkhorseGtk::register_class ("http://lvtoolkit.org/plugins/workhorse#ui");