QPlainTextDocumentLayout uses the
QAbstractTextDocumentLayout API that
QTextDocument requires, but redefines it partially in order to support plain text better. For instances, it does not operate on vertical pixels, but on paragraphs (called blocks) instead. The height of a document is identical to the number of paragraphs it contains. The layout also doesn’t support tables or nested frames, or any sort of advanced text layout that goes beyond a list of paragraphs with syntax highlighting.
Constructs a plain text document layout for the text
block has a valid layout
Requests a complete update on all views.
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