init

pub fn init(self: *ContextWidget, src: std.builtin.SourceLocation, init_opts: InitOptions, opts: Options) void {
    const defaults = Options{ .name = "Context" };
    self.* = .{
        .wd = WidgetData.init(src, .{}, defaults.override(opts).override(.{ .rect = dvui.parentGet().data().contentRectScale().rectFromPhysical(init_opts.rect) })),
        .init_options = init_opts,
        .winId = dvui.subwindowCurrentId(),
    };
    if (dvui.focusedWidgetIdInCurrentSubwindow()) |fid| {
        if (fid == self.wd.id) {
            self.focused = true;
        }
    }

    if (dvui.dataGet(null, self.data().id, "_activePt", Point.Natural)) |a| {
        self.activePt = a;
    }
    if (dvui.dataGet(null, self.data().id, "_hold", HoldState)) |h| {
        self.hold = h;
    }

    dvui.parentSet(self.widget());
    self.prev_menu_root = dvui.MenuWidget.Root.set(.{ .ptr = self, .close = menu_root_close });
    self.data().register();
    self.data().borderAndBackground(.{});
}