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[platform-ui-dev] How to initialize a customized column in AbstractDecoratedTextEditor?

Hi,

I'm trying to customize a text editor which inherits the AbstractDecoratedTextEditor class. The goal is to add an additional ruler column to show some information.

However, since the createColumnSupport method in AbstractDecoratedTextEditor is declared as final, it is not possible for me override this method so that my column can be initialized.

Is there any other way to initialize my column without changing createColumnSupport?

Best regards,
Jianjiang Ceng