enum shift_type
{
  SHIFT_BY_TIME,
  SHIFT_BY_FRAME
};

enum shift_direction
{
  SHIFT_FORWARD,
  SHIFT_BACKWARD
};

enum shift_affected_rows
{
  SHIFT_FROM_SELECTED, 
  SHIFT_BEFORE_SELECTED, 
  SHIFT_SELECTED, 
  SHIFT_NOTSELECTED, 
  SHIFT_ALL
};

enum shift_affected_times
{
  SHIFT_START_END,
  SHIFT_START,
  SHIFT_END
};

struct _gui_shift_times
{
  GtkWindow *window;

  GtkWidget *entry_time;

  GtkSpinButton *spin_frame;
  GtkLabel *label_fps;
  GtkComboBoxEntry *combo_fps;

  GtkRadioButton *radio_by_time;
  GtkRadioButton *radio_by_frame;

  GtkRadioButton *radio_forward;
  GtkRadioButton *radio_backward;

  GtkRadioButton *radio_time_both;
  GtkRadioButton *radio_time_start;
  GtkRadioButton *radio_time_end;

  GtkRadioButton *radio_row_all;
  GtkRadioButton *radio_row_selected;
  GtkRadioButton *radio_row_notselected;
  GtkRadioButton *radio_row_from_selection;
  GtkRadioButton *radio_row_before_selection;
};

struct _gui_shift_times_options
{
  enum shift_type shift_type;
  enum shift_direction shift_direction;
  enum shift_affected_rows shift_affected_rows;
  enum shift_affected_times shift_affected_times;

  int offset_mili;
  
  int offset_frames;
  char *fps;
};

void gui_shift_times_show_custom(long time, enum shift_direction direction, enum shift_affected_rows rows);
void gui_main_menu_event_shift_times_cb(gpointer callback_data, gint callback_arg, GtkMenuItem *item);