CODEWITHSUNDEEP
gwtdatagridrendercellcelltable
Joel
Joel

Reputation: 2688

GWT Determining Row Value during Cell render

I'd like to determine whether an icon is used based on the value of the "row" value that is in the CellTable (or DataGrid). How do I determine that when building the Cell renderer?

IconCellDecorator<String> icd = new IconCellDecorator<String>(res.search(), new ClickableTextCell()) {
  @Override
  protected boolean isIconUsed(String value) {
    //value may not be unique across rows (column value), I really need the row instance here.
  }
};

Upvotes: 0

Views: 611

Answers (2)

Joel
Joel

Reputation: 2688

I decided to rewrite IconCellDecorator so that the getImageUsed method passes in the Context object, which gives me the row index and key. This seemed the most straightforward for specifically what I was trying to accomplish, although Thomas' answer should work as well.

Upvotes: 0

Thomas Broyer
Thomas Broyer

Reputation: 64561

If you need the row object, you'll have to use an IconCellDecorator<RowObject>, and wrap or subclass the ClickableTextCell to extract the String out of the RowObject.

Or you could use a CompositeCell and ImageResourceCell instead of the IconCellDecorator.

Upvotes: 1

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