154 lines
2.8 KiB
C
154 lines
2.8 KiB
C
/*
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* PUPA -- Preliminary Universal Programming Architecture for GRUB
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* Copyright (C) 2002 Free Software Foundation, Inc.
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* Copyright (C) 2002 Yoshinori K. Okuji <okuji@enbug.org>
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*
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* PUPA is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with PUPA; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <pupa/term.h>
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#include <pupa/err.h>
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#include <pupa/mm.h>
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/* The list of terminals. */
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static pupa_term_t pupa_term_list;
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/* The current terminal. */
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static pupa_term_t pupa_cur_term;
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void
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pupa_term_register (pupa_term_t term)
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{
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term->next = pupa_term_list;
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pupa_term_list = term;
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}
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void
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pupa_term_unregister (pupa_term_t term)
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{
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pupa_term_t *p, q;
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for (p = &pupa_term_list, q = *p; q; p = &(q->next), q = q->next)
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if (q == term)
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{
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*p = q->next;
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break;
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}
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}
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void
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pupa_term_iterate (int (*hook) (pupa_term_t term))
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{
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pupa_term_t p;
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for (p = pupa_term_list; p; p = p->next)
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if (hook (p))
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break;
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}
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void
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pupa_term_set_current (pupa_term_t term)
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{
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pupa_cur_term = term;
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}
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pupa_term_t
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pupa_term_get_current (void)
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{
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return pupa_cur_term;
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}
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void
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pupa_putchar (int c)
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{
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if (c == '\n')
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pupa_putchar ('\r');
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else if (c == '\t' && pupa_cur_term->getxy)
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{
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int n;
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n = 8 - ((pupa_getxy () >> 8) & 7);
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while (n--)
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pupa_putchar (' ');
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return;
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}
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(pupa_cur_term->putchar) (c);
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}
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int
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pupa_getkey (void)
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{
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return (pupa_cur_term->getkey) ();
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}
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int
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pupa_checkkey (void)
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{
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return (pupa_cur_term->checkkey) ();
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}
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pupa_uint16_t
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pupa_getxy (void)
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{
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return (pupa_cur_term->getxy) ();
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}
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void
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pupa_gotoxy (pupa_uint8_t x, pupa_uint8_t y)
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{
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(pupa_cur_term->gotoxy) (x, y);
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}
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void
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pupa_cls (void)
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{
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if (pupa_cur_term->flags & PUPA_TERM_DUMB)
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pupa_putchar ('\n');
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else
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(pupa_cur_term->cls) ();
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}
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void
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pupa_setcolorstate (pupa_term_color_state state)
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{
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if (pupa_cur_term->setcolorstate)
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(pupa_cur_term->setcolorstate) (state);
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}
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void
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pupa_setcolor (pupa_uint8_t normal_color, pupa_uint8_t highlight_color)
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{
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if (pupa_cur_term->setcolor)
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(pupa_cur_term->setcolor) (normal_color, highlight_color);
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}
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int
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pupa_setcursor (int on)
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{
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static int prev = 1;
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int ret = prev;
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if (pupa_cur_term->setcursor)
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{
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(pupa_cur_term->setcursor) (on);
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prev = on;
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}
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return ret;
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}
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