does gwt-widgets work with Designer?

[oldgwtuser]

I was trying Designer on an existing GWT project which is using GWT 1.5.2 and gwt-widgets-0.2.0
On clicking the Design tab of Class implementing EntryPoint, it starting initializing and subsequently fails..

Following is found in .gwt-logs\.gwt-log says following
[ERROR] Line 120: The constructor JSCalendar(String, boolean, String) is undefined

This class belongs to gwt-widgets and is present in the build-path of the project.

Preferences for Designer doesn't have option to add additional widget library; is there any way to integrate gwt-widgets?

[Eric Clayberg]

See the Custom Widget discussion in the FAQ. Custom widgets need to have a Javabean standard zero-argument constructor.

Widgets can be added to the palette using the Palette Manager.

Any external widgets need to be referenced in your GWT module file just like any other external code.