static void
handle_newl(void) {
XWindowAttributes wa;
if(dzen.slave_win.max_lines && (dzen.slave_win.tcnt > last_cnt)) {
do_action(onnewinput);
if (XGetWindowAttributes(dzen.dpy, dzen.slave_win.win, &wa),
wa.map_state != IsUnmapped
/* autoscroll and redraw only if we're
* currently viewing the last line of input
*/
&& (dzen.slave_win.last_line_vis == last_cnt)) {
dzen.slave_win.first_line_vis = 0;
dzen.slave_win.last_line_vis = 0;
x_draw_body();
}
/* needed for a_scrollhome */
else if(wa.map_state != IsUnmapped
&& dzen.slave_win.last_line_vis == dzen.slave_win.max_lines)
x_draw_body();
/* forget state if window was unmapped */
else if(wa.map_state == IsUnmapped || !dzen.slave_win.last_line_vis) {
dzen.slave_win.first_line_vis = 0;
dzen.slave_win.last_line_vis = 0;
x_draw_body();
}
last_cnt = dzen.slave_win.tcnt;
}
}
int
a_scrollend(char * opt[]) {
(void)opt;
if(dzen.slave_win.max_lines) {
dzen.slave_win.first_line_vis = dzen.slave_win.tcnt - dzen.slave_win.max_lines ;
dzen.slave_win.last_line_vis = dzen.slave_win.tcnt;
x_draw_body();
}
return 0;
}
static void
scroll(int n) {
if(dzen.slave_win.tcnt <= dzen.slave_win.max_lines)
return;
if(dzen.slave_win.first_line_vis + n < 0) {
dzen.slave_win.first_line_vis = 0;
dzen.slave_win.last_line_vis = dzen.slave_win.max_lines;
}
else if(dzen.slave_win.last_line_vis + n > dzen.slave_win.tcnt) {
dzen.slave_win.first_line_vis = dzen.slave_win.tcnt - dzen.slave_win.max_lines;
dzen.slave_win.last_line_vis = dzen.slave_win.tcnt;
}
else {
dzen.slave_win.first_line_vis += n;
dzen.slave_win.last_line_vis += n;
}
x_draw_body();
}
void
drawbody(char * text) {
char *ec;
int i, write_buffer=1;
if(dzen.slave_win.tcnt == -1) {
dzen.slave_win.tcnt = 0;
drawheader(text);
return;
}
if((ec = strstr(text, "^tw()")) && (*(ec-1) != '^')) {
drawheader(ec+5);
return;
}
if(dzen.slave_win.tcnt == dzen.slave_win.tsize)
free_buffer();
write_buffer = parse_non_drawing_commands(text);
if(text[0] == '^' && text[1] == 'c' && text[2] == 's') {
free_buffer();
for(i=0; i < dzen.slave_win.max_lines; i++)
XFillRectangle(dzen.dpy, dzen.slave_win.drawable[i], dzen.rgc, 0, 0, dzen.slave_win.width, dzen.line_height);
x_draw_body();
return;
}
if( write_buffer && (dzen.slave_win.tcnt < dzen.slave_win.tsize) ) {
dzen.slave_win.tbuf[dzen.slave_win.tcnt] = estrdup(text);
dzen.slave_win.tcnt++;
}
}