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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.

*/

#ifndef __audio_clock_h__
#define __audio_clock_h__

#include <gtkmm/box.h>
#include <gtkmm/menu.h>
#include <gtkmm/eventbox.h>
#include <gtkmm/label.h>
#include <gtkmm/frame.h>
#include <ardour/ardour.h>

namespace ARDOUR {
      class Session;
}

class AudioClock : public Gtk::HBox
{
  public:
      enum Mode {
            SMPTE,
            BBT,
            MinSec,
            Frames,
            Off
      };
      
      AudioClock (std::string clock_name, bool transient, std::string widget_name, bool editable, bool is_duration = false, bool with_info = false);

      Mode mode() const { return _mode; }

      void focus ();

      void set (nframes_t, bool force = false, nframes_t offset = 0, int which = 0);
      void set_mode (Mode);
      
      void set_widget_name (std::string);

      std::string name() const { return _name; }

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

      sigc::signal<void> ValueChanged;

      static sigc::signal<void> ModeChanged;
      static std::vector<AudioClock*> clocks;

      static bool has_focus() { return _has_focus; }

  private:
      ARDOUR::Session  *session;
      Mode             _mode;
      uint32_t          key_entry_state;
      std::string      _name;
      bool              is_transient;
      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;
      Gtk::HBox   frames_packer;
       
      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::HBox      off_hbox;

      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*  frames_upper_info_label;
      Gtk::Label*  frames_lower_info_label;

      Gtk::Label*  smpte_upper_info_label;
      Gtk::Label*  smpte_lower_info_label;
      
      Gtk::Label*  bbt_upper_info_label;
      Gtk::Label*  bbt_lower_info_label;

      Gtk::VBox   frames_info_box;
      Gtk::VBox   smpte_info_box;
      Gtk::VBox   bbt_info_box;

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

      nframes_t last_when;
      bool last_pdelta;
      bool last_sdelta;

      uint32_t last_hrs;
      uint32_t last_mins;
      uint32_t last_secs;
      uint32_t 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 on_realize ();
      
      bool field_motion_notify_event (GdkEventMotion *ev, Field);
      bool field_button_press_event (GdkEventButton *ev, Field);
      bool field_button_release_event (GdkEventButton *ev, Field);
      bool field_button_scroll_event (GdkEventScroll *ev, Field);
      bool field_key_press_event (GdkEventKey *, Field);
      bool field_key_release_event (GdkEventKey *, Field);
      bool field_focus_in_event (GdkEventFocus *, Field);
      bool field_focus_out_event (GdkEventFocus *, Field);
      bool drop_focus_handler (GdkEventFocus*);

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

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

      void build_ops_menu ();
      void setup_events ();

      void smpte_offset_changed ();
      void set_size_requests ();

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

#endif /* __audio_clock_h__ */

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