void wbkgrndset(WINDOW *win, const cchar_t *wch)
{
attr_t battr;
nschar_t *np, *tnp;
unsigned int i;
/* ignore multi-column characters */
if ( !wch->elements || wcwidth( wch->vals[ 0 ]) > 1 )
return;
/* Background character. */
tnp = np = win->bnsp;
if ( wcwidth( wch->vals[ 0 ]))
win->bch = wch->vals[ 0 ];
else {
if ( !np ) {
np = (nschar_t *)malloc(sizeof(nschar_t));
if (!np)
return;
np->next = NULL;
win->bnsp = np;
}
np->ch = wch->vals[ 0 ];
tnp = np;
np = np->next;
}
/* add non-spacing characters */
if ( wch->elements > 1 ) {
for ( i = 1; i < wch->elements; i++ ) {
if ( !np ) {
np = (nschar_t *)malloc(sizeof(nschar_t));
if (!np)
return;
np->next = NULL;
if ( tnp )
tnp->next = np;
else
win->bnsp = np;
}
np->ch = wch->vals[ i ];
tnp = np;
np = np->next;
}
}
/* clear the old non-spacing characters */
while ( np ) {
tnp = np->next;
free( np );
np = tnp;
}
/* Background attributes (check colour). */
battr = wch->attributes & WA_ATTRIBUTES;
if (__using_color && !( battr & __COLOR))
battr |= __default_color;
win->battr = battr;
SET_BGWCOL((*win), 1);
}
/*
* __makenew --
* Set up a window buffer and returns a pointer to it.
*/
static WINDOW *
__makenew(SCREEN *screen, int nlines, int ncols, int by, int bx, int sub,
int ispad)
{
WINDOW *win;
__LINE *lp;
struct __winlist *wlp, *wlp2;
int i;
#ifdef DEBUG
__CTRACE(__CTRACE_WINDOW, "makenew: (%d, %d, %d, %d)\n",
nlines, ncols, by, bx);
#endif
if (nlines <= 0 || ncols <= 0)
return NULL;
if ((win = malloc(sizeof(WINDOW))) == NULL)
return (NULL);
#ifdef DEBUG
__CTRACE(__CTRACE_WINDOW, "makenew: win = %p\n", win);
#endif
win->fp = NULL;
/* Set up line pointer array and line space. */
if ((win->alines = malloc(nlines * sizeof(__LINE *))) == NULL) {
free(win);
return NULL;
}
if ((win->lspace = malloc(nlines * sizeof(__LINE))) == NULL) {
free(win->alines);
free(win);
return NULL;
}
/* Don't allocate window and line space if it's a subwindow */
if (sub)
win->wspace = NULL;
else {
/*
* Allocate window space in one chunk.
*/
if ((win->wspace =
malloc(ncols * nlines * sizeof(__LDATA))) == NULL) {
free(win->lspace);
free(win->alines);
free(win);
return NULL;
}
/*
* Append window to window list.
*/
if ((wlp = malloc(sizeof(struct __winlist))) == NULL) {
free(win->wspace);
free(win->lspace);
free(win->alines);
free(win);
return NULL;
}
wlp->winp = win;
wlp->nextp = NULL;
if (screen->winlistp == NULL)
screen->winlistp = wlp;
else {
wlp2 = screen->winlistp;
while (wlp2->nextp != NULL)
wlp2 = wlp2->nextp;
wlp2->nextp = wlp;
}
/*
* Point line pointers to line space, and lines themselves into
* window space.
*/
for (lp = win->lspace, i = 0; i < nlines; i++, lp++) {
win->alines[i] = lp;
lp->line = &win->wspace[i * ncols];
#ifdef DEBUG
lp->sentinel = SENTINEL_VALUE;
#endif
lp->firstchp = &lp->firstch;
lp->lastchp = &lp->lastch;
if (ispad) {
lp->firstch = 0;
lp->lastch = ncols;
} else {
lp->firstch = ncols;
lp->lastch = 0;
}
}
}
#ifdef DEBUG
__CTRACE(__CTRACE_WINDOW, "makenew: ncols = %d\n", ncols);
#endif
win->screen = screen;
win->cury = win->curx = 0;
win->maxy = nlines;
win->maxx = ncols;
win->reqy = nlines;
win->reqx = ncols;
win->begy = by;
win->begx = bx;
win->flags = (__IDLINE | __IDCHAR);
win->delay = -1;
win->wattr = 0;
#ifdef HAVE_WCHAR
win->bnsp = NULL;
SET_BGWCOL( *win, 1 );
#endif /* HAVE_WCHAR */
win->scr_t = 0;
win->scr_b = win->maxy - 1;
if (ispad) {
win->flags |= __ISPAD;
win->pbegy = 0;
win->pbegx = 0;
win->sbegy = 0;
win->sbegx = 0;
win->smaxy = 0;
win->smaxx = 0;
} else
__swflags(win);
#ifdef DEBUG
__CTRACE(__CTRACE_WINDOW, "makenew: win->wattr = %08x\n", win->wattr);
__CTRACE(__CTRACE_WINDOW, "makenew: win->flags = %#.4x\n", win->flags);
__CTRACE(__CTRACE_WINDOW, "makenew: win->maxy = %d\n", win->maxy);
__CTRACE(__CTRACE_WINDOW, "makenew: win->maxx = %d\n", win->maxx);
__CTRACE(__CTRACE_WINDOW, "makenew: win->begy = %d\n", win->begy);
__CTRACE(__CTRACE_WINDOW, "makenew: win->begx = %d\n", win->begx);
__CTRACE(__CTRACE_WINDOW, "makenew: win->scr_t = %d\n", win->scr_t);
__CTRACE(__CTRACE_WINDOW, "makenew: win->scr_b = %d\n", win->scr_b);
#endif
return (win);
}
void wbkgrndset(WINDOW *win, const cchar_t *wch)
{
#ifdef HAVE_WCHAR
attr_t battr;
nschar_t *np, *tnp;
int i;
#ifdef DEBUG
__CTRACE(__CTRACE_ATTR, "wbkgrndset: (%p), '%s', %x\n",
win, (const char *) wunctrl(wch), wch->attributes);
#endif
/* ignore multi-column characters */
if ( !wch->elements || wcwidth( wch->vals[ 0 ]) > 1 )
return;
/* Background character. */
tnp = np = win->bnsp;
if ( wcwidth( wch->vals[ 0 ]))
win->bch = wch->vals[ 0 ];
else {
if ( !np ) {
np = malloc(sizeof(nschar_t));
if (!np)
return;
np->next = NULL;
win->bnsp = np;
}
np->ch = wch->vals[ 0 ];
tnp = np;
np = np->next;
}
/* add non-spacing characters */
if ( wch->elements > 1 ) {
for ( i = 1; i < wch->elements; i++ ) {
if ( !np ) {
np = malloc(sizeof(nschar_t));
if (!np)
return;
np->next = NULL;
if ( tnp )
tnp->next = np;
else
win->bnsp = np;
}
np->ch = wch->vals[ i ];
tnp = np;
np = np->next;
}
}
/* clear the old non-spacing characters */
while ( np ) {
tnp = np->next;
free( np );
np = tnp;
}
/* Background attributes (check colour). */
battr = wch->attributes & WA_ATTRIBUTES;
if (__using_color && !( battr & __COLOR))
battr |= __default_color;
win->battr = battr;
SET_BGWCOL((*win), 1);
#endif /* HAVE_WCHAR */
}