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Refashioned wchgat() after whline(). However, as I read the X/Open spec

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for wchgat(), it's actually supposed to allow changing multiple lines...
which neither ncurses nor Solaris do, either. To Do?
This commit is contained in:
William McBrine
2007-06-21 05:38:07 +00:00
parent e06edc6a81
commit 1d2712bcac
1 changed files with 14 additions and 24 deletions
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38
pdcurses/attr.c
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@@ -13,7 +13,7 @@
#include <curspriv.h>
RCSID("$Id: attr.c,v 1.37 2007/06/14 13:50:26 wmcbrine Exp $")
RCSID("$Id: attr.c,v 1.38 2007/06/21 05:38:07 wmcbrine Exp $")
/*man-start**************************************************************
@@ -309,8 +309,8 @@ int attr_set(attr_t attrs, short color_pair, void *opts)
int wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
{
chtype newattr, tmp;
int basey, basex, imax, ic;
chtype *dest, newattr;
int startpos, endpos;
PDC_LOG(("wchgat() - called\n"));
@@ -319,30 +319,20 @@ int wchgat(WINDOW *win, int n, attr_t attr, short color, const void *opts)
newattr = (attr & A_ATTRIBUTES) | COLOR_PAIR(color);
basey = win->_cury;
basex = win->_curx;
imax = win->_maxx - win->_curx;
startpos = win->_curx;
endpos = ((n < 0) ? win->_maxx : min(startpos + n, win->_maxx)) - 1;
dest = win->_y[win->_cury];
if (n > 0)
imax = ((imax < n) ? imax : n);
for (n = startpos; n <= endpos; n++)
dest[n] = (dest[n] & A_CHARTEXT) | newattr;
for (ic = 0; ic < imax; ic++)
{
tmp = (win->_y[basey][basex + ic] & A_CHARTEXT) | newattr;
win->_y[basey][basex + ic] = tmp;
}
n = win->_cury;
if (win->_firstch[basey] == _NO_CHANGE)
{
win->_firstch[basey] = basex;
win->_lastch[basey] = basex + imax - 1;
}
else
{
win->_firstch[basey] = min(win->_firstch[basey], basex);
win->_lastch[basey] = max(win->_lastch[basey],
basex + imax - 1);
}
if (startpos < win->_firstch[n] || win->_firstch[n] == _NO_CHANGE)
win->_firstch[n] = startpos;
if (endpos > win->_lastch[n])
win->_lastch[n] = endpos;
PDC_sync(win);