Add text and list widgets

2 files changed, 92 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;
+};
diff --git a/tui/widget/text/text.ha b/tui/widget/text/text.ha
new file mode 100644
index 0000000..5cd8da7
--- /dev/null
+++ b/tui/widget/text/text.ha
@@ -0,0 +1,34 @@
+use io;
+use unix::tty;
+use tui::widget;
+
+export type text = struct {
+	widget: widget::widget,
+	txt: str,
+};
+
+export fn newtext(out: io::file, txt: str, pos: widget::coords) text = {
+	return text {
+		widget = widget::widget {
+			out = out,
+			print = &printtext,
+			resize = &resizetext,
+			pos = pos,
+			sz = widget::nosize,
+		},
+		txt = txt,
+	};
+};
+
+fn printtext(widget: *widget::widget) void = {
+	const widget = widget: *text;
+	widget::print(widget.widget.out, widget.txt, widget.widget.pos);
+};
+
+fn resizetext(widget: *widget::widget, ttysize: tty::ttysize) void = {
+	return;
+};
+
+export fn settext(text: *text, txt: str) void = {
+	text.txt = txt;
+};