init

pub fn init(src: std.builtin.SourceLocation, dir: Direction, init_options: InitOptions, opts: Options) HeaderResizeWidget {
        var widget_opts = HeaderResizeWidget.defaults.override(.{ .color_fill = opts.color(.border) }).override(opts);
        widget_opts.expand = switch (dir) {
            .horizontal => .horizontal,
            .vertical => .vertical,
        };

        var self = HeaderResizeWidget{
            .wd = WidgetData.init(src, .{}, widget_opts),
            .direction = dir,
            .init_opts = init_options,
        };

        if (dvui.dataGet(null, self.data().id, "_offset", Point)) |offset| {
            self.offset = offset;
        }

        return self;
    }