static void
screen_scroll_down(Screen *s)
{
RowIterator iter = RowMapLowerBound(rowmap(s), key(s));
if (iter != RowMapEnd(rowmap(s)))
{
iter++;
if (iter != RowMapEnd(rowmap(s)))
set_key(s, RowGetKey(iter));
}
}
/*
* Render the whole screen by querying the model.
*/
static void
screen_render(Screen *s)
{
/* determine the visible set of rows using key */
RowIterator iter = RowMapLowerBound(rowmap(s), key(s));
RowIterator end = RowMapEnd(rowmap(s));
/* reposition the cursor to the origin */
int i = 0;
int ctr = 0;
move(ctr, 0);
/* display the header row in reverse video at the top of screen */
attron(A_REVERSE);
render_row(s, &s->model->header, '|');
attroff(A_REVERSE);
ctr++;
/* render visible set */
for (; iter != end && ctr < lines(s); iter++, ++ctr)
{
render_row(s, iter, ' ');
}
/* blank out any remaining rows below the last row */
for (i = ctr; i < lines(s); ++i) {
printw("\n");
clrtoeol();
}
}
void
RowMapErase(RowMap *m, Row *key)
{
RowIterator iter = RowMapFindWithKey(m, key);
if (iter == RowMapEnd(m))
return;
RowCleanup(GetRow(iter));
bsd_rb_tree_remove_node(&m->tree, iter);
}
