double ScrollBar::get_click_pos(const Point2 &p_pos) const {
float pos = (orientation == VERTICAL) ? p_pos.y : p_pos.x;
pos -= get_area_offset();
float area = get_area_size();
if (area == 0)
return 0;
else
return pos / area;
}
/* Event handler for tool 'error-support' */
ATerm error_support_handler(int conn, ATerm term)
{
ATerm in, out;
/* We need some temporary variables during matching */
char *s0, *s1;
ATerm t0;
if(ATmatch(term, "rec-eval(make-error(<str>,<term>))", &s0, &t0)) {
return make_error(conn, s0, t0);
}
if(ATmatch(term, "rec-eval(get-area-end-line(<term>))", &t0)) {
return get_area_end_line(conn, t0);
}
if(ATmatch(term, "rec-eval(get-location-filename(<term>))", &t0)) {
return get_location_filename(conn, t0);
}
if(ATmatch(term, "rec-eval(has-location-area(<term>))", &t0)) {
return has_location_area(conn, t0);
}
if(ATmatch(term, "rec-eval(get-summary-id(<term>))", &t0)) {
return get_summary_id(conn, t0);
}
if(ATmatch(term, "rec-eval(get-error-description(<term>))", &t0)) {
return get_error_description(conn, t0);
}
if(ATmatch(term, "rec-do(display-summary(<term>))", &t0)) {
display_summary(conn, t0);
return NULL;
}
if(ATmatch(term, "rec-eval(lower-summary(<term>))", &t0)) {
return lower_summary(conn, t0);
}
if(ATmatch(term, "rec-eval(make-localized-subject(<str>,<term>))", &s0, &t0)) {
return make_localized_subject(conn, s0, t0);
}
if(ATmatch(term, "rec-eval(get-summary-producer(<term>))", &t0)) {
return get_summary_producer(conn, t0);
}
if(ATmatch(term, "rec-eval(get-error-subjects(<term>))", &t0)) {
return get_error_subjects(conn, t0);
}
if(ATmatch(term, "rec-eval(make-subject(<str>))", &s0)) {
return make_subject(conn, s0);
}
if(ATmatch(term, "rec-eval(get-subject-location(<term>))", &t0)) {
return get_subject_location(conn, t0);
}
if(ATmatch(term, "rec-eval(get-area-offset(<term>))", &t0)) {
return get_area_offset(conn, t0);
}
if(ATmatch(term, "rec-eval(get-area-begin-line(<term>))", &t0)) {
return get_area_begin_line(conn, t0);
}
if(ATmatch(term, "rec-eval(add-filename-in-error(<str>,<term>))", &s0, &t0)) {
return add_filename_in_error(conn, s0, t0);
}
if(ATmatch(term, "rec-eval(get-location-area(<term>))", &t0)) {
return get_location_area(conn, t0);
}
if(ATmatch(term, "rec-eval(set-summary-id(<term>,<str>))", &t0, &s0)) {
return set_summary_id(conn, t0, s0);
}
if(ATmatch(term, "rec-eval(has-subject-location(<term>))", &t0)) {
return has_subject_location(conn, t0);
}
if(ATmatch(term, "rec-eval(get-area-end-column(<term>))", &t0)) {
return get_area_end_column(conn, t0);
}
if(ATmatch(term, "rec-eval(make-summary(<str>,<str>,<term>))", &s0, &s1, &t0)) {
return make_summary(conn, s0, s1, t0);
}
if(ATmatch(term, "rec-eval(get-summary-errors(<term>))", &t0)) {
return get_summary_errors(conn, t0);
}
if(ATmatch(term, "rec-eval(get-subject-description(<term>))", &t0)) {
return get_subject_description(conn, t0);
}
if(ATmatch(term, "rec-eval(get-area-length(<term>))", &t0)) {
return get_area_length(conn, t0);
}
if(ATmatch(term, "rec-terminate(<term>)", &t0)) {
rec_terminate(conn, t0);
return NULL;
}
if(ATmatch(term, "rec-eval(get-area-begin-column(<term>))", &t0)) {
return get_area_begin_column(conn, t0);
}
if(ATmatch(term, "rec-do(signature(<term>,<term>))", &in, &out)) {
ATerm result = error_support_checker(conn, in);
if(!ATmatch(result, "[]"))
ATfprintf(stderr, "warning: not in input signature:\n\t%\n\tl\n", result);
return NULL;
}
ATerror("tool error-support cannot handle term %t", term);
return NULL; /* Silence the compiler */
}