[Digikam-devel] [Kde-imaging] Exposure Blending tool finalization...

[Gilles Caulier]

2009/12/24 Marcel Wiesweg <marcel.wiesweg at gmx.de>:
>
>> Andi,
>>
>> I create a new version of PreviewImage widget in libkipi-plugins,
>> using QGraphicsView,as you have done in RedEyesRemoval, Plus some
>> improvements, as toolbar,
>>
>> I checked code from libksane, where Sare has used also QGraphicsView.
>> Idem into DarkRoom from Ciry Berger (Krita team).
>>
>> In all case, Zoom and panning is slow. Can you reproduce ?
>>
>> I make something wrong with Scene cache settings ?
>>
>> Sound like Qt4 APi is not yet optimized here.(:=))))
>>
>> In all case, digiKam::PreviewWidget using imlib2 code is very well
>>  faster...
>
> Are you using Qt facilities to implement the zooming?
> I would expect to continue using the current zooming code when drawing on the
> graphics view.

Hum, what do you mean exactly ?

Gilles