diff options
Diffstat (limited to 'ncurses-5.9/ncurses/base/lib_redrawln.c')
-rw-r--r-- | ncurses-5.9/ncurses/base/lib_redrawln.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/ncurses-5.9/ncurses/base/lib_redrawln.c b/ncurses-5.9/ncurses/base/lib_redrawln.c new file mode 100644 index 0000000..2d8398c --- /dev/null +++ b/ncurses-5.9/ncurses/base/lib_redrawln.c @@ -0,0 +1,87 @@ +/**************************************************************************** + * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc. * + * * + * Permission is hereby granted, free of charge, to any person obtaining a * + * copy of this software and associated documentation files (the * + * "Software"), to deal in the Software without restriction, including * + * without limitation the rights to use, copy, modify, merge, publish, * + * distribute, distribute with modifications, sublicense, and/or sell * + * copies of the Software, and to permit persons to whom the Software is * + * furnished to do so, subject to the following conditions: * + * * + * The above copyright notice and this permission notice shall be included * + * in all copies or substantial portions of the Software. * + * * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * + * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * + * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * + * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * + * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * + * * + * Except as contained in this notice, the name(s) of the above copyright * + * holders shall not be used in advertising or otherwise to promote the * + * sale, use or other dealings in this Software without prior written * + * authorization. * + ****************************************************************************/ + +/**************************************************************************** + * Author: Thomas E. Dickey <dickey@clark.net> 1997 * + ****************************************************************************/ + +/* + * lib_redrawln.c + * + * The routine wredrawln(). + * + */ + +#include <curses.priv.h> + +MODULE_ID("$Id$") + +NCURSES_EXPORT(int) +wredrawln(WINDOW *win, int beg, int num) +{ + int i; + int end; + size_t len; + SCREEN *sp; + + T((T_CALLED("wredrawln(%p,%d,%d)"), (void *) win, beg, num)); + + if (win == 0) + returnCode(ERR); + + sp = _nc_screen_of(win); + + if (beg < 0) + beg = 0; + + if (touchline(win, beg, num) == ERR) + returnCode(ERR); + + if (touchline(CurScreen(sp), beg + win->_begy, num) == ERR) + returnCode(ERR); + + end = beg + num; + if (end > CurScreen(sp)->_maxy + 1 - win->_begy) + end = CurScreen(sp)->_maxy + 1 - win->_begy; + if (end > win->_maxy + 1) + end = win->_maxy + 1; + + len = (size_t) (win->_maxx + 1); + if (len > (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx)) + len = (size_t) (CurScreen(sp)->_maxx + 1 - win->_begx); + len *= sizeof(CurScreen(sp)->_line[0].text[0]); + + for (i = beg; i < end; i++) { + int crow = i + win->_begy; + + memset(CurScreen(sp)->_line[crow].text + win->_begx, 0, len); + NCURSES_SP_NAME(_nc_make_oldhash) (NCURSES_SP_ARGx crow); + } + + returnCode(OK); +} |