On Thursday, February 9, 2012 17:11:38 Ignat Semenov wrote:
Hello fellow plasma developers!
I'm doing a fix for folderview, related to the theme changes. In
particular, I need to relayout and repaint the items using the margins
in the new viewitem.svgz in the new theme. To reload the FrameSVG
object manually, I need to do an update() call in the applet, which
will redraw everything, including the view, and load the correct SVG.
But, after that, I will recalculate the correct margins and relayout
the items (as they have different sizes now), and then repaint the
view completely. So we have 2 complete repaints (and one more in
AppletPrivate::themeChanged(), an unconditional one.)
So, I'd like to avoid this second repaint (via update()), and reload
the framesvg manually. How can I do that?
are you sure this results in 2 paint events? in theory, these signals should
all happen at the same time and those two calls to update() should be
compressed into a single paint event .. meaning that there is no point in
trying to optimize that call out.
that's the theory .. in practice that theory could be wrong (in which case we
need to fix it in libplasma). if you could confirm the number of paint events
that actually get triggered that would be excellent.
--
Aaron J. Seigo
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