How to make widget grow outside of its parent widget

[shakeandbake]

Hello!
Let's say I have a QLineEdit widget inside a QDialog and this QLineEdit widget grows when you type something in it (it grows so you can always see all the text in the QLineEdit).
Is there a way to allow that QLineEdit widget to grow outside of the QDialog it's in without making the QDialog (its parent) bigger?

Thanks!