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audio_clock.h

/*
    Copyright (C) 1999 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.

    $Id: audio_clock.h,v 1.21 2005/04/01 21:37:42 persigmond Exp $
*/

#ifndef __audio_clock_h__
#define __audio_clock_h__

#include <gtk--.h>
#include <ardour/ardour.h>

namespace ARDOUR {
      class Session;
};

class AudioClock : public Gtk::HBox
{
  public:
      enum Mode {
            SMPTE,
            BBT,
            MinSec,
            Frames,
            Off,
      };
      
      AudioClock (const string& name, bool editable, bool is_duration = false, bool with_tempo_meter = false);

      Mode mode() const { return _mode; }
      
      void set (jack_nframes_t, bool force = false);
      void set_mode (Mode);

      jack_nframes_t current_time (jack_nframes_t position = 0) const;
      jack_nframes_t current_duration (jack_nframes_t position = 0) const;
      void set_session (ARDOUR::Session *s);

      SigC::Signal0<void> ValueChanged;

  private:
      ARDOUR::Session  *session;
      Mode             _mode;
      uint32_t      key_entry_state;
      bool              is_duration;
      bool              editable;

      Gtk::Menu  *ops_menu;

      Gtk::HBox   smpte_packer_hbox;
      Gtk::HBox   smpte_packer;

      Gtk::HBox   minsec_packer_hbox;
      Gtk::HBox   minsec_packer;

      Gtk::HBox   bbt_packer_hbox;
      Gtk::HBox   bbt_packer;

      Gtk::HBox   frames_packer_hbox;
       
      enum Field {
            SMPTE_Hours,
            SMPTE_Minutes,
            SMPTE_Seconds,
            SMPTE_Frames,
            MS_Hours,
            MS_Minutes,
            MS_Seconds,
            Bars,
            Beats, 
            Ticks,
            AudioFrames,
      };

      Gtk::EventBox  audio_frames_ebox;
      Gtk::Label     audio_frames_label;

      Gtk::EventBox  hours_ebox;
      Gtk::EventBox  minutes_ebox;
      Gtk::EventBox  seconds_ebox;
      Gtk::EventBox  frames_ebox;

      Gtk::EventBox  ms_hours_ebox;
      Gtk::EventBox  ms_minutes_ebox;
      Gtk::EventBox  ms_seconds_ebox;

      Gtk::EventBox  bars_ebox;
      Gtk::EventBox  beats_ebox;
      Gtk::EventBox  ticks_ebox;

      Gtk::Label  hours_label;
      Gtk::Label  minutes_label;
      Gtk::Label  seconds_label;
      Gtk::Label  frames_label;
      Gtk::Label  colon1, colon2, colon3;

      Gtk::Label  ms_hours_label;
      Gtk::Label  ms_minutes_label;
      Gtk::Label  ms_seconds_label;
      Gtk::Label  colon4, colon5;

      Gtk::Label  bars_label;
      Gtk::Label  beats_label;
      Gtk::Label  ticks_label;
      Gtk::Label  b1;
      Gtk::Label  b2;

      Gtk::Label*  tempo_label;
      Gtk::Label*  meter_label;

      Gtk::VBox   tempo_meter_box;

      Gtk::EventBox  clock_base;
      Gtk::Frame     clock_frame;

      jack_nframes_t last_when;

      long last_hrs;
      long last_mins;
      long last_secs;
      long last_frames;
      bool last_negative;

      long  ms_last_hrs;
      long  ms_last_mins;
      float ms_last_secs;

      bool dragging;
      double drag_start_y;
      double drag_y;
      double drag_accum;

      void realize_impl ();
      
      gint field_motion_notify_event (GdkEventMotion *ev, Field);
      gint field_button_press_event (GdkEventButton *ev, Field);
      gint field_button_release_event (GdkEventButton *ev, Field);
      gint field_key_release_event (GdkEventKey *, Field);
      gint field_focus_in_event (GdkEventFocus *, Field);
      gint field_focus_out_event (GdkEventFocus *, Field);

      void set_smpte (jack_nframes_t, bool);
      void set_bbt (jack_nframes_t, bool);
      void set_minsec (jack_nframes_t, bool);
      void set_frames (jack_nframes_t, bool);

      jack_nframes_t get_frames (Field,jack_nframes_t pos = 0,int dir=1);
      
      void smpte_sanitize_display();
      jack_nframes_t smpte_frame_from_display () const;
      jack_nframes_t bbt_frame_from_display (jack_nframes_t) const;
      jack_nframes_t bbt_frame_duration_from_display (jack_nframes_t) const;
      jack_nframes_t minsec_frame_from_display () const;
      jack_nframes_t audio_frame_from_display () const;

      void build_ops_menu ();
      void setup_events ();

      static const uint32_t field_length[(int)AudioFrames+1];
};

#endif /* __audio_clock_h__ */

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