MarkdownDialectGitHub now includes this feature, so *emph* is italicized
and _emph_ is underlined. This is a better fit for QTextDocument capabilities;
until now, _underlined_ markdown could be read, but would be rendered with
italics, because in CommonMark, *emphasis* and _emphasis_ are the same.
But QTextMarkdownWriter already writes underlining and italics distinctly
in this way.
[ChangeLog][QtGui][Text] By default (with MarkdownDialectGitHub), markdown
_underline_ and *italic* text styles are now distinct.
Fixes: QTBUG-84429
Change-Id: Ifc6defa4852abe831949baa4ce28bae5f1a82265
Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io>
Checkboxes are right-aligned with any bullets that are in the same
QTextList so that there is enough space to make them larger than bullets.
But hopefully mixing bullets and checkboxes will be a rarely-used feature.
Change-Id: I28e274d1f7883aa093df29eb4988e99641e87a71
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
Also use QT_CONFIG to disable features gracefully if Qt is
configured without them.
Change-Id: I38e92bf5fd70f77fc4d5158769d590619be8905f
Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>