static int
tcapeeop(void)
{
int i, starting_col, starting_row;
/*
* If the terminal doesn't have back color erase, then we have to
* erase manually to preserve the background color.
*/
if(pico_usingcolor() && (!_bce || !_cleartoeos)){
extern int ttcol, ttrow;
starting_col = ttcol;
starting_row = ttrow;
tcapeeol(); /* rest of this line */
for(i = ttrow+1; i <= term.t_nrow; i++){ /* the remaining lines */
tcapmove(i, 0);
tcapeeol();
}
tcapmove(starting_row, starting_col);
}
else if(_cleartoeos)
putpad(_cleartoeos);
/* return ignored */
return(0);
}
static int
tcapeeol(void)
{
int c, starting_col, starting_line;
char *last_bg_color;
/*
* If the terminal doesn't have back color erase, then we have to
* erase manually to preserve the background color.
*/
if(pico_usingcolor() && (!_bce || !_cleartoeoln)){
extern int ttcol, ttrow;
starting_col = ttcol;
starting_line = ttrow;
last_bg_color = pico_get_last_bg_color();
pico_set_nbg_color();
for(c = ttcol; c < term.t_ncol; c++)
ttputc(' ');
tcapmove(starting_line, starting_col);
if(last_bg_color){
pico_set_bg_color(last_bg_color);
free(last_bg_color);
}
}
else if(_cleartoeoln)
putpad(_cleartoeoln);
/* return ignored */
return(0);
}
static void tcapscroll_reg(int from, int to, int numlines)
{
int i;
if (to == from)
return;
if (to < from) {
tcapscrollregion(to, from + numlines - 1);
tcapmove(from + numlines - 1, 0);
for (i = from - to; i > 0; i--)
putpad(SF);
} else { /* from < to */
tcapscrollregion(from, to + numlines - 1);
tcapmove(from, 0);
for (i = to - from; i > 0; i--)
putpad(SR);
}
tcapscrollregion(0, term.t_nrow);
}
static void tcapscroll_delins(int from, int to, int numlines)
{
int i;
if (to == from)
return;
if (to < from) {
tcapmove(to, 0);
for (i = from - to; i > 0; i--)
putpad(DL);
tcapmove(to + numlines, 0);
for (i = from - to; i > 0; i--)
putpad(AL);
} else {
tcapmove(from + numlines, 0);
for (i = to - from; i > 0; i--)
putpad(DL);
tcapmove(from, 0);
for (i = to - from; i > 0; i--)
putpad(AL);
}
}
/* move howmany lines starting at from to to */
static void
tcapscroll_delins(int from, int to, int n)
{
int i;
if (to == from) return;
if (DL && AL) {
if (to < from) {
tcapmove(to,0);
putpad(tgoto(DL,0,from-to));
tcapmove(to+n,0);
putpad(tgoto(AL,0,from-to));
} else {
tcapmove(from+n,0);
putpad(tgoto(DL,0,to-from));
tcapmove(from,0);
putpad(tgoto(AL,0,to-from));
}
} else { /* must be dl and al */
#if OPT_PRETTIER_SCROLL
if (absol(from-to) > 1) {
tcapscroll_delins(from, (from<to) ? to-1:to+1, n);
if (from < to)
from = to-1;
else
from = to+1;
}
#endif
if (to < from) {
tcapmove(to,0);
for (i = from - to; i > 0; i--)
putpad(dl);
tcapmove(to+n,0);
for (i = from - to; i > 0; i--)
putpad(al);
} else {
tcapmove(from+n,0);
for (i = to - from; i > 0; i--)
putpad(dl);
tcapmove(from,0);
for (i = to - from; i > 0; i--)
putpad(al);
}
}
}
/*
* o_scrolldown - open a line at the given row position.
* use either region scrolling or deleteline/insertline
* to open a new line.
*/
int
o_scrolldown(int row, int n)
{
register int i;
if(_scrollregion != NULL){
putpad(tgoto(_scrollregion, term.t_nrow - (term.t_mrow+1), row));
tcapmove(row, 0);
for(i = 0; i < n; i++)
putpad( (_scrollup != NULL && *_scrollup != '\0')
? _scrollup : "\n" );
putpad(tgoto(_scrollregion, term.t_nrow, 0));
tcapmove(row, 0);
}
else{
/*
* this code causes a jiggly motion of the keymenu when scrolling
*/
for(i = 0; i < n; i++){
tcapmove(term.t_nrow - (term.t_mrow+1), 0);
putpad(_deleteline);
tcapmove(row, 0);
putpad(_insertline);
}
#ifdef NOWIGGLYLINES
/*
* this code causes a sweeping motion up and down the display
*/
tcapmove(term.t_nrow - term.t_mrow - n, 0);
for(i = 0; i < n; i++)
putpad(_deleteline);
tcapmove(row, 0);
for(i = 0; i < n; i++)
putpad(_insertline);
#endif
}
/* return ignored */
return(0);
}
/*
* o_scrollup - open a line at the given row position.
* use either region scrolling or deleteline/insertline
* to open a new line.
*/
int
o_scrollup(int row, int n)
{
register int i;
if(_scrollregion != NULL){
putpad(tgoto(_scrollregion, term.t_nrow - (term.t_mrow+1), row));
/* setting scrolling region moves cursor to home */
tcapmove(term.t_nrow-(term.t_mrow+1), 0);
for(i = 0;i < n; i++)
putpad((_scrolldown == NULL || _scrolldown[0] == '\0')
? "\n" : _scrolldown);
putpad(tgoto(_scrollregion, term.t_nrow, 0));
tcapmove(2, 0);
}
else{
for(i = 0; i < n; i++){
tcapmove(row, 0);
putpad(_deleteline);
tcapmove(term.t_nrow - (term.t_mrow+1), 0);
putpad(_insertline);
}
#ifdef NOWIGGLYLINES
/* see note above */
tcapmove(row, 0);
for(i = 0; i < n; i++)
putpad(_deleteline);
tcapmove(term.t_nrow - term.t_mrow - n, 0);
for(i = 0;i < n; i++)
putpad(_insertline);
#endif
}
/* return ignored */
return(0);
}
