https://forum.qt.io/topic/69094/how-to-clip-qpainterpath-qrect-hiding-the-outline
How to clip QPainterPath/QRect, hiding the outline? | Qt Forum
Jul 8, 2016 - Is there a way to clip one painter object by overlaying it with another object, hiding the outline as well as the fill area? If you render text in QPainter t...
how tothe outlinecliphidingqt
https://www.riverbankcomputing.com/pipermail/qscintilla/2007-August/000117.html
[QScintilla] Discovery the correct TextCursor QRect / Coordinate
qscintilladiscoverycorrectcoordinate
https://doc.qt.io/QT-6/qrect.html
QRect Class | Qt Core | Qt 6.11.1
The QRect class defines a rectangle in the plane using integer precision.
classqtcore