[Qt-interest] Calculating text size in QLineEdit

[Matthias Paul]

Hello!

I created a QLineEdit subclass, which automatically displays a truncated text if the original text is too long for the widget's size, so that there's no need to scroll for the user. Instead a tooltip with full text is displayed.

QFontMetrics calculates the size required for the displayed text based on QWidget's size() (provided by ResizeEvent). Still, I cannot figure out how to get the the text label size _minus_ widget's borders and margins. Guess I have to use QStyle somehow, so can someone give me a hint please?

Thank you,
Paule
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