/*
  timecode-widget.hpp  -  Declaration of the timecode widget
 
  Copyright (C) 1999 Paul Davis 

  Copyright (C)         Lumiera.org
    2010,               Stefan Kangas <skangas@skangas.se
 
  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 TIMECODE_WIDGET_HPP
#define TIMECODE_WIDGET_HPP

#include <string>

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

namespace gui {
namespace widgets {

class TimeCode : public Gtk::HBox
{
public:
  enum Mode {
    SMPTE,
    MinSec,
    Frames,
    Off
  };
  
  TimeCode(std::string clock_name, std::string widget_name, bool editable /*, bool is_duration = false*/);

  Mode mode() const { return _mode; }

  void focus();

  void set(gavl_time_t, bool force = false);
  void set_mode(Mode);

  void set_widget_name(std::string);

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

  gavl_time_t current_time(gavl_time_t position = 0) const;
  gavl_time_t current_duration(gavl_time_t position = 0) const;

  sigc::signal<void> ValueChanged;
  sigc::signal<void> ChangeAborted;

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

  static bool has_focus() { return _has_focus; }

private:
  Mode             _mode;
  unsigned int     key_entry_state;
  std::string      _name;
  // 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   frames_packer_hbox;
  Gtk::HBox   frames_packer;
       
  enum Field {
    SMPTE_Hours,
    SMPTE_Minutes,
    SMPTE_Seconds,
    SMPTE_Frames,
    MS_Hours,
    MS_Minutes,
    MS_Seconds,
    VFrames
  };

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

  gavl_time_t last_when;
  bool last_pdelta;
  bool last_sdelta;

  int last_hrs;
  int last_mins;
  int last_secs;
  int last_frames;
  bool last_negative;

  int  ms_last_hrs;
  int  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(gavl_time_t, bool);
  void set_minsec(gavl_time_t, bool);
  void set_frames(gavl_time_t, bool);

  gavl_time_t get_frames(Field, gavl_time_t pos = 0, int dir=1);
  
  void smpte_sanitize_display();
  gavl_time_t smpte_time_from_display() const;
  gavl_time_t minsec_time_from_display() const;
  gavl_time_t audio_time_from_display() const;

  void build_ops_menu();
  void setup_events();

  void smpte_offset_changed();
  void set_size_requests();

  static const unsigned int field_length[(int)VFrames+1];
  static bool _has_focus;
  
  void set_size_request_to_display_given_text(Gtk::Widget &w, const gchar *text,
    gint hpadding, gint vpadding);

  void get_ink_pixel_size(Glib::RefPtr<Pango::Layout> layout,
    int& width, int& height);

};

}   // namespace widgets
}   // namespace gui

#endif // TIMECODE_WIDGET_HPP