Idea here is to let the user select as much text he wants in the text editor, then have a rectangle displayed around that selected area.
This rectangle has to take the shape of the selected text.
I found blockBoundingRect function which returns the bounding rectangle of the QTextBlock in the QTextBlock's own coordinates.
I am not sure if this would be of some help. What do I need to do to display the rectangle around the selected text?
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