<div dir="ltr"><div class="gmail_extra"><div class="gmail_quote">On Tue, Mar 22, 2016 at 4:46 PM, Khaled Hosny <span dir="ltr"><<a href="mailto:khaledhosny@eglug.org" target="_blank">khaledhosny@eglug.org</a>></span> wrote:<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><span>
> > Currently (on my HiDPI machine) most of the rendering time (~30% of the<br>
> > all application profile) is spent in QPainter::drawPixmap(). I believe<br>
> > rewriting ScPainter on top of QPainter can make it much faster, instead<br>
> > of the current code which redraws the whole canvas as a pixmap on each<br>
> > draw event. But that is a small project of its own.</span></blockquote><div><br></div><div>Sort of reminded me of a bug jluc found: </div><div>#12825 "Severe performance issue with layers."</div><div>(<a href="https://bugs.scribus.net/view.php?id=12825#c35158" target="_blank">https://bugs.scribus.net/view.php?id=12825#c35158</a>)<br></div><div><br></div><div>Cheers,</div><div>/Kunda</div></div></div></div>