Question about QApplication.fontMetrics() in PyQt6

[Florian Bruhin]

Hey,

On Tue, Jan 12, 2021 at 11:13:36PM +0800, RedHuli wrote:
> This is a simple question I have about using QApplication.fontMetrics() in
> PyQt6. When I used it before in PyQt5, I never received an error message.
> However, when I want to get the font metrics I now get the error :
> 
> font_size = QApplication.fontMetrics() # Calculate the size of the text
> 
> 
> AttributeError: type object 'QApplication' has no attribute 'fontMetrics'
> 
> I am reimplementing the sizeHint() method when subclassing
> QStyledItemDelegate.

Looks like it's marked as obsolete in Qt 6:
https://doc.qt.io/qt-6/qapplication-obsolete.html

Looks like this is the recommended replacement:
https://doc.qt.io/qt-6/qfontmetricsf.html#QFontMetricsF

Florian

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