#include "keyboard.h"
#include "clear_selection.h"
#include "selection_from_db.h"
#include "../view/exp004state0.h"

#define S exp004state0

void
keyboard (unsigned char key, int x, int y)
{
  switch (key)
    {
    case 27:
      /*
       * ESC Pressed.
       */
      clear_selection ();
      break;

    case 'g':
      /*
       * g has been pressed.  This is used to load a selection from
       * the database since it is the convention to use g for
       * refreshing a buffer in Emacs.
       */
      selection_from_db ();
      break;

    case 'z':
      /*
       * Toggle zoom mode on and off.
       */
      if (S.zoom)
	S.zoom = false;
      else
	S.zoom = true;
      break;
    }

  return;
}