Qt 5.4 for workspace

[Martin Gräßlin]

On Friday 26 September 2014 20:27:07 Eike Hein wrote:
> As for concrete 5.4 stuff I'm interested in - there's new API
> to render QQuickItems into offscreen memory buffers, which would
> be really useful to make icon DND in Folder more efficient and
> a little more reliable. The current code ends up downloading
> delegate textures out of video memory to assemble the drag
> pixmap because all other approaches are foiled by private API,
> and it's just really ugly and hard to ifdef since it needs
> changes both on the QML and C++ sides.

For what is worth, I need to say that I also want exactly that feature in 
KWin. So I'm also in the situation that I would love using 5.4, but see the 
disadvantages.

My suggestion would be to ifdef that code and as soon as we depend on 5.4 
remove the ifdef and old code path. I wouldn't mind updating the Qt version a 
week or two after it's released.

Cheers
Martin
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