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use libtui;
use libtui::widget;
use io;
use unix::tty;
use fmt;
use os;
export type layout = struct {
widgets: []*widget::widget,
};
// Create and return a new layout from a list of widgets. [[finishall]] must be
// called to properly free the widget's nad layout's resources.
export fn newlayout(widgets: *widget::widget...) layout = {
return layout {
widgets = widgets,
};
};
// Display all the widgets contained in the given layout.
export fn print(layout: layout) (void | widget::error) = {
libtui::clear(layout.widgets[0].ui);
for (let i = 0z; i < len(layout.widgets); i += 1) {
match (layout.widgets[i].print) {
case null =>
return;
case let f: *widget::print =>
f(layout.widgets[i])?;
};
};
};
// Finish and free the widgets in the given layout.
export fn finishall(layout: *layout) void = {
for (let i = 0z; i < len(layout.widgets); i += 1) {
match (layout.widgets[i].finish) {
case null =>
return;
case let f: *widget::finish =>
f(layout.widgets[i]);
};
};
free(layout.widgets);
};
// Notify all the widgets contained in the given layout. Returns true as soon as
// one of the widget's listeners returns true, false otherwise.
export fn notifyall(layout: layout, k: libtui::key) bool = {
for (let i = 0z; i < len(layout.widgets); i += 1) {
if (widget::notify(layout.widgets[i], k)) {
return true;
};
};
return false;
};
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