Highlight all text in QTextBrowser when gaining focus

Hello,

I want to highlight all text in QTextBrowser when it gains focus. I couldn't find a suitable signal that tells me that the TextBrowser widget just gained focus.

So I thought about reimplementing the focusInEvent, which seems to be the correct way. I derived a class MyTextBrowser from QTextBrowser.
But as I am using the Designer for layouting my windows I don't know how to "replace" the used QTextBrowser object with a MyTextbrowser object.

Or is there any other way to highlight all text in QTextBrowser when it gains focus?

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Originally Posted by Boron

I want to highlight all text in QTextBrowser when it gains focus. I couldn't find a suitable signal that tells me that the TextBrowser widget just gained focus.

So I thought about reimplementing the focusInEvent, which seems to be the correct way. I derived a class MyTextBrowser from QTextBrowser.

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Correct, it's not a signal but an event.

Quote:

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But as I am using the Designer for layouting my windows I don't know how to "replace" the used QTextBrowser object with a MyTextbrowser object.

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See Promoting Widgets.