matchEvent

pub fn matchEvent(self: *TreeWidget, event: *dvui.Event) bool {
    if (dvui.captured(self.wd.id) or (self.init_options.drag_name != null and dvui.dragName(self.init_options.drag_name.?))) {
        // passively listen to mouse motion
        for (dvui.events()) |*e| {
            if (e.evt == .mouse and e.evt.mouse.action == .motion) {
                self.drag_point = e.evt.mouse.p;

                dvui.scrollDrag(.{
                    .mouse_pt = e.evt.mouse.p,
                    .screen_rect = self.wd.rectScale().r,
                });
            }
        }
    }

    if (self.init_options.drag_name) |dn| {
        if (dvui.dragName(dn)) {
            return dvui.eventMatch(event, .{ .id = self.data().id, .r = self.data().borderRectScale().r, .drag_name = dn });
        }
    }

    return dvui.eventMatchSimple(event, self.data());
}