The Text
and the TextAreaFieldWidget
support setting the number of cols and rows on the supermodel XML level.
<field name="foo" type="zope.schema.Text">
<form:widget type="z3c.form.browser.textarea.TextAreaFieldWidget">
<rows>20</rows>
<cols>50</cols>
</form:widget>
</field>
Would it be hard to support both settings in the field editor?