GWT in Action, Second Edition

10.2. Creating custom cells

Creating your own custom cell is something you’ll need to do if you want to go beyond the standard set of cells. As you saw in chapter 4 on UI widgets, you can create custom cells in a couple of ways:

• Create a composite of existing cells.
• Create a cell from scratch.

In this section we’ll build a simple cell that will display title, date, and largeUrl fields from an underlying PhotoDetails object. The title and date will be text cells, and the other field will drive the display of an image (a block of color for this example’s purpose). Let’s take a quick look at how we’d achieve that in a composite cell, and then we’ll move on to creating it from scratch.

10.2.1. Composite

Composite cells display a number of ...