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authortholo <tholo@openbsd.org>1996-06-02 06:04:50 +0000
committertholo <tholo@openbsd.org>1996-06-02 06:04:50 +0000
commitca751a4c440c24b9feedffffe0dd93cc1e00ab0c (patch)
tree3ce3bce27611f188dc5c8a99bd9a2e9f5addfcc7 /lib/libcurses/lib_erase.c
parentAdd LIBOLDCURSES (diff)
downloadwireguard-openbsd-ca751a4c440c24b9feedffffe0dd93cc1e00ab0c.tar.xz
wireguard-openbsd-ca751a4c440c24b9feedffffe0dd93cc1e00ab0c.zip
Install ncurses as -lcurses and <curses.h>
Install BSD curses library as -locurses and <ocurses.h>
Diffstat (limited to 'lib/libcurses/lib_erase.c')
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1 files changed, 66 insertions, 0 deletions
diff --git a/lib/libcurses/lib_erase.c b/lib/libcurses/lib_erase.c
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+
+/***************************************************************************
+* COPYRIGHT NOTICE *
+****************************************************************************
+* ncurses is copyright (C) 1992-1995 *
+* Zeyd M. Ben-Halim *
+* zmbenhal@netcom.com *
+* Eric S. Raymond *
+* esr@snark.thyrsus.com *
+* *
+* Permission is hereby granted to reproduce and distribute ncurses *
+* by any means and for any fee, whether alone or as part of a *
+* larger distribution, in source or in binary form, PROVIDED *
+* this notice is included with any such distribution, and is not *
+* removed from any of its header files. Mention of ncurses in any *
+* applications linked with it is highly appreciated. *
+* *
+* ncurses comes AS IS with no warranty, implied or expressed. *
+* *
+***************************************************************************/
+
+
+/*
+** lib_erase.c
+**
+** The routine werase().
+**
+*/
+
+#include "curses.priv.h"
+
+int werase(WINDOW *win)
+{
+int y;
+chtype *sp, *end, *start, *maxx = NULL;
+short minx;
+
+ T(("werase(%p) called", win));
+
+ for (y = 0; y <= win->_maxy; y++) {
+ minx = _NOCHANGE;
+ start = win->_line[y].text;
+ end = &start[win->_maxx];
+
+ maxx = start;
+ for (sp = start; sp <= end; sp++) {
+ maxx = sp;
+ if (minx == _NOCHANGE)
+ minx = sp - start;
+ *sp = _nc_render(win, *sp, BLANK);
+ }
+
+ if (minx != _NOCHANGE) {
+ if (win->_line[y].firstchar > minx ||
+ win->_line[y].firstchar == _NOCHANGE)
+ win->_line[y].firstchar = minx;
+
+ if (win->_line[y].lastchar < maxx - win->_line[y].text)
+ win->_line[y].lastchar = maxx - win->_line[y].text;
+ }
+ }
+ win->_curx = win->_cury = 0;
+ win->_flags &= ~_NEED_WRAP;
+ _nc_synchook(win);
+ return OK;
+}