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cgram: allow navigation with KEY_PPAGE and KEY_NPAGE

This commit is contained in:
rillig 2021-02-21 22:21:56 +00:00
parent 352df404f7
commit 9510ff87da
1 changed files with 12 additions and 8 deletions
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20
games/cgram/cgram.c
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@ -1,4 +1,4 @@
/* $NetBSD: cgram.c,v 1.10 2021/02/21 20:33:42 rillig Exp $ */
/* $NetBSD: cgram.c,v 1.11 2021/02/21 22:21:56 rillig Exp $ */
/*-
* Copyright (c) 2013, 2021 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: cgram.c,v 1.10 2021/02/21 20:33:42 rillig Exp $");
__RCSID("$NetBSD: cgram.c,v 1.11 2021/02/21 22:21:56 rillig Exp $");
#endif
#include <assert.h>
@ -361,8 +361,8 @@ closecurses(void)
static void
saturate_cursor(void)
{
assert(cursor_y >= 0);
assert(cursor_y <= cur_max_y());
cursor_y = imax(cursor_y, 0);
cursor_y = imin(cursor_y, cur_max_y());
assert(cursor_x >= 0);
cursor_x = imin(cursor_x, cur_max_x());
@ -445,13 +445,17 @@ handle_key(void)
break;
case 14: /* ^N */
case KEY_DOWN:
if (cursor_y < cur_max_y())
cursor_y++;
cursor_y++;
break;
case 16: /* ^P */
case KEY_UP:
if (cursor_y > 0)
cursor_y--;
cursor_y--;
break;
case KEY_PPAGE:
cursor_y -= LINES - 2;
break;
case KEY_NPAGE:
cursor_y += LINES - 2;
break;
case '*':
hinting = !hinting;