midi_ui.h

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/*
 * Copyright (C) 2009-2015 Paul Davis <paul@linuxaudiosystems.com>
 * Copyright (C) 2011 David Robillard <d@drobilla.net>
 *
 * 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.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
#ifndef __libardour_midi_ui_h__
#define __libardour_midi_ui_h__
 
#include <list>
 
#define ABSTRACT_UI_EXPORTS
#include "pbd/abstract_ui.h"
#include "pbd/signals.h"
 
namespace ARDOUR {
 
class Session;
class AsyncMIDIPort;
 
/* this is mostly a placeholder because I suspect that at some
   point we will want to add more members to accommodate
   certain types of requests to the MIDI UI
*/
 
struct LIBARDOUR_API MidiUIRequest : public BaseUI::BaseRequestObject {
  public:
        MidiUIRequest () { }
        ~MidiUIRequest() { }
};
 
class LIBARDOUR_API MidiControlUI : public AbstractUI<MidiUIRequest>
{
  public:
        MidiControlUI (Session& s);
        ~MidiControlUI ();
 
        static MidiControlUI* instance() { return _instance; }
        static void* request_factory (uint32_t num_requests);
 
        void change_midi_ports ();
 
  protected:
        void thread_init ();
        void do_request (MidiUIRequest*);
 
  private:
        ARDOUR::Session& _session;
 
        bool midi_input_handler (Glib::IOCondition, std::weak_ptr<AsyncMIDIPort>);
        void reset_ports ();
        void clear_ports ();
 
        static MidiControlUI* _instance;
};
 
}
 
#endif /* __libardour_midi_ui_h__ */