QTreeWidget set height of each row depending on content

Question

Hi everyone,

I want to make editable cells with multi-lines content in QTreeWidget and I use for this purpose QPlainTextEdit as a delegate. I need to set proper size to all rows that switching between editing and displaying went smooth, without any visible changes.

rect = textEdit.blockBoundingRect(textEdit.firstVisibleBlock())

• with this I can find out the height I need to set for the row, but I missing the place where I can do it.

How can i set proper height to QTreeWidget's rows on initialization stage and how to handle it's changes?

Thank you in advance, Serge

Answer 1

You need to reimplement delegate's sizeHint(). It will automatically handle row's height and width. And note, that QTreeWidget::uniformRowHeight property must be false in this case, though it will slow tree element rendering if it contains many rows.