small_menu.hpp

本程序是主要是扫雷

/*     Copyright(c) Ben Bear 2003-2004  */

//  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., 59 Temple Place - Suite 330, Boston, MA
//  02111-1307, USA.

#ifndef __small_menu_hpp
#define __small_menu_hpp

#include <string.h>
#include <stdio.h>
#include <curses.h>

int menu_select (const char* name, const char** items)
{
  WINDOW *win;
  WINDOW *der;
  int item_h = 0;		// height of menu items
  int item_w = 0;		// width of menu items
  int win_h, win_w;
  int win_y, win_x;
  int name_len = strlen(name);

  int ch;
  char tmp[8];

  noecho ();
  for (; items[item_h] != 0;)
    {
      int len = strlen(items[item_h]);
      if (item_w < len)
	item_w = len;
      ++item_h;
    }

  win_h = item_h + 2;
  win_w = item_w + 3;
  if (win_w < name_len+4)
    win_w = name_len+4;
  getmaxyx (stdscr, win_y, win_x);
  win_y = (win_y - win_h) / 4;
  win_x = (win_x - win_w) / 4;

  win = newwin (win_h, win_w, win_y, win_x);
  keypad (win, TRUE);
  der = derwin (win, win_h-2, win_w-2, 1, 1);
  keypad (der, TRUE);

  box (win, 0, 0);
  mvwprintw (win, 0, (win_w - name_len - 2) / 2,
	     " %s ", name);

  sprintf (tmp, " %%-%ds", win_w-3);
  for (int i = 0; i < item_h; ++i)
    mvwprintw (win, i+1, 1, tmp, items[i]);

  int cur_s = 0;
  int new_s;

  wmove (der, cur_s, 1);
  wchgat (der, win_w-3, A_REVERSE, 0, NULL);
  touchwin (win);
  wrefresh (win);

  do
    {
      new_s = cur_s;
      wmove (win, cur_s+1, 1);
      ch = wgetch (win);
      switch (ch)
	{
	case KEY_UP:
	  new_s = (new_s + item_h - 1) % item_h;
	  break;
	case KEY_DOWN:
	  new_s = (new_s + 1) % item_h;
	  break;
	case '\n':
	  continue;		/* continue do...while */
	  break;
	}
      if (new_s != cur_s)
	{
	  wmove (der, cur_s, 1);
	  wchgat (der, win_w-3, A_NORMAL, 0, NULL);

	  cur_s = new_s;

	  wmove (der, cur_s, 1);
	  wchgat (der, win_w-3, A_REVERSE, 0, NULL);

	  touchwin (win);
	  wrefresh (win);
	}
    }
  while (ch != '\n');
  
  wclear (win);
  wrefresh (win);
  delwin (der);
  delwin (win);
  return cur_s;
}

#endif