[Development] Resizing borders for dock widgets

[Sérgio Martins]

On 2023-02-18 13:42, Axel Spoerl via Development wrote:
> Hi David,
> The margin for recognizing a mouse resize is handled by the window
> manager, hence not controlled by Qt.
> (...)

That depends if the QDockWidget is using native decorations or not, see 
[1].

When not using native decos, Qt::FramelessWindowHint is used and 
resizing is done via QWidgetResizeHandler, which has 4px of margin [2],
but I think only inwards, since if the mouse is outside the window won't 
receive the event. Maybe needs mouse grab.




[1] - 
https://codebrowser.dev/qt5/qtbase/src/widgets/widgets/qdockwidget.cpp.html#299
[2] - 
https://codebrowser.dev/qt5/qtbase/src/widgets/widgets/qwidgetresizehandler.cpp.html#_M/RANGE

Regards,
-- 
Sérgio Martins | sergio.martins at kdab.com | Senior Software Engineer
Klarälvdalens Datakonsult AB, a KDAB Group company
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