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use tui::widget;
use io;
use unix::tty;
use memio;
use strings;
export type frame = struct {
start: u16,
end: u16,
};
export type list = struct {
widget: widget::widget,
items: []str,
frame: frame,
};
export fn newlist(out: io::file, pos: widget::coords, sz: widget::widgetsize, items: str...) (list | tty::error) = {
const tsz = tty::winsize(out)?;
let end = match (sz) {
case let sz: tty::ttysize =>
yield if (tsz.rows < sz.rows) tsz.rows else sz.rows;
case widget::nosize =>
yield tsz.rows;
};
if (end > len(items)) {
end = len(items): u16;
};
return list {
widget = widget::widget {
out = out,
print = &printlist,
resize = &resizelist,
pos = pos,
sz = sz,
},
items = items,
frame = frame {
start = 0,
end = end,
},
};
};
export fn printlist(widget: *widget::widget) void = {
const list = widget: *list;
let st = memio::dynamic();
defer io::close(&st)!;
memio::concat(&st, strings::join("\n", list.items[list.frame.start..list.frame.end]...))!;
widget::print(list.widget.out, memio::string(&st)!, (1, 1));
};
export fn resizelist(widget: *widget::widget, ttysize: tty::ttysize) void = {
return;
};
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