GWT Table that supports sorting, scrolling and filtering

Custom headers are what is used with GWT 2.1 to do sorting. The 2.1 bikeshed has examples that use custom headers and am using one for sorting until Mvp4g moves to 2.2. To enable the filtering, just add an image with its own click handler and you should be good - it won't trigger sort behavior when it's clicked on, just the rest of the header will.

table.addColumn(new MyColumn(new MyCell()), new MyFilterHeader());

For the actual filtering, if you're using the database model from the examples (the wrapper class for the ListDataProvider), then I'd think you'd just keep two lists - the filtered list that's assigned to the ListDataProvider, and the unfiltered list it's based on.

Hope that helps!

In your new sample code, you might want to try a CompositeCell with the ClickableTextCell inside it, along with an ActionCell for the filtering part - if you can stick an image into the ClickableTextCell, you should be able to in the ActionCell, plus it'll have the mouseup behavior you want.