How to extract the text of custom text object format in QTextEdit

[Hanson]

I hava created a custom text object class derived from QTextObjectInterface.And I want to use QTextEdit::toPlainText to export the text.
Any help is appreciated!

[Hanson]

@Hanson Finally,I find a way to traverse QTextDocument in QTextEdit,and extract all data I want,include the normal text and my custom text object.

[JonB]

@Hanson
If you have a QTextObjectInterface to allow drawing of something (right?), what do you expect the output to be for QTextEdit::toPlainText?

[Hanson]

@JonB I set the string property of the custom text object, like this

And I want to export the string property.Or you have other method that can export this string.

[JonB]

@Hanson
Hmm, never used QTextObjectInterface. The only documentation I can see for its text is the cryptic/terse:

The data of a text object is usually stored in the QTextCharFormat using QTextCharFormat::setProperty(), and then retrieved with QTextCharFormat::property().

But I don't know if that has any relationship to how you would get that out into QTextEdit::toPlainText() :(

If you/someone else cannot find any way to do this, I can only think you might copy the whole of the QTextDocument, replace your QTextObjectInterface node(s) with their plain text, and then export that document. Not nice, but....

[Hanson]

@JonB Emm,I use QTextObjectInterface is aim to show my own custom text object, and use the string property to control how to paint the object.Also i want to export the string to other using.

[Hanson]

@Hanson Finally,I find a way to traverse QTextDocument in QTextEdit,and extract all data I want,include the normal text and my custom text object.