diff options
Diffstat (limited to 'tui/widget/list/list.ha')
| -rw-r--r-- | tui/widget/list/list.ha | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tui/widget/list/list.ha b/tui/widget/list/list.ha new file mode 100644 index 0000000..4da52d5 --- /dev/null +++ b/tui/widget/list/list.ha @@ -0,0 +1,58 @@ +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; +}; |
