Extendscript: How to check whether text content overflows the containing rectangle

Question

I am using Extendscript for Photoshop CS5 to change the text of a text layer. Is there a way of checking whether the text fits e.g. by checking whether it overflows after changing the content?

Answer 1

I haven't found a way to do this directly. But I've used the following technique to determine the height I needed for a textbox (I wanted to keep the width constant) before.

• expand the textbox's height well beyond what is needed to accommodate the text inside it.
• duplicate the layer
• rasterize the duplicate
• measure the bounds of the rasterized layer.
• adjust the bounds of the original text layer as needed
• delete the rasterized duplicate

Totally roundabout - but it did work.