midi_tracer.h

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/*
    Copyright (C) 2012 Paul Davis 

    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.

*/

#ifndef __ardour_gtk_midi_tracer_h__
#define __ardour_gtk_midi_tracer_h__

#include <gtkmm/textview.h>
#include <gtkmm/scrolledwindow.h>
#include <gtkmm/togglebutton.h>
#include <gtkmm/adjustment.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/label.h>
#include <gtkmm/comboboxtext.h>
#include <gtkmm/box.h>

#include "pbd/signals.h"
#include "pbd/ringbuffer.h"
#include "pbd/pool.h"
#include "midi++/types.h"
#include "ardour_window.h"

namespace MIDI {
        class Parser;
}

namespace ARDOUR {
        class MidiPort;
}

class MidiTracer : public ArdourWindow
{
  public:
        MidiTracer ();
        ~MidiTracer();

  private:
        Gtk::TextView text;
        Gtk::ScrolledWindow scroller;
        Gtk::Adjustment line_count_adjustment;
        Gtk::SpinButton line_count_spinner;
        Gtk::Label line_count_label;
        Gtk::HBox line_count_box;
        struct timeval _last_receipt;
        
        bool autoscroll;
        bool show_hex;
        bool show_delta_time;

        volatile gint _update_queued;

        RingBuffer<char *> fifo;
        Pool buffer_pool;
        static const size_t buffer_size = 256;

        void tracer (MIDI::Parser&, MIDI::byte*, size_t);
        void update ();

        Gtk::CheckButton autoscroll_button;
        Gtk::CheckButton base_button;
        Gtk::CheckButton collect_button;
        Gtk::CheckButton delta_time_button;
        Gtk::ComboBoxText _port_combo;

        void base_toggle ();
        void autoscroll_toggle ();
        void collect_toggle ();
        void delta_toggle ();

        void port_changed ();
        void ports_changed ();
        void disconnect ();
        PBD::ScopedConnection _parser_connection;
        PBD::ScopedConnection _manager_connection;

        boost::shared_ptr<ARDOUR::MidiPort> traced_port;
};

#endif /* __ardour_gtk_midi_tracer_h__ */