[Interest] Upgrade to Qt 5 -- pros and cons?

[Rick Stockton]

On 03/22/2013 05:11 PM, Thiago Macieira wrote:
> On sexta-feira, 22 de março de 2013 18.58.50, K. Frank wrote:
>> But it's interesting that nobody really put forth any functional benefits
>> of Qt 5 in the widget / desktop space.
> There hasn't been any new work done on the widgets, besides general bugfixing. 
> They've been in Done state for going on two years now.
>
> However, the low-level performance improvements done in QtCore and QtGui 
> benefit desktop and widgets too. Base classes are more efficient, there are new 
> features there (like the JSON parser, MIME type support, etc.), the QPA 
> architecture helped clean up the whole GUI support, support for C++11 
> constructs, and so forth.
>
Qt5 support for 'more mouse buttons' is available to both Widget and
QML-based programs. And, even for mouse devices with only Back+Forward
"extra buttons", the full width mask which Qt5 provides in
Qt::MouseButtons might be useful as well. (Qt4 only provided tracking of
Pressed versus Unpressed Button State for LeftButton, RightButton, and
MiddleButton.)