On Wed, 2005-04-27 at 10:41, Angus Leeming wrote: > Martin Vermeer wrote: > > I don't think it has anything to do with moving the graphic. What I > > notice on my 256k/256k ADSL modem is traffic going on all the time when a > > document is open. It starts with the splash screen; when that is loaded, > > it stops. Then when you open a document or start a new one, it starts > > again and never stops. > > > > There is some inefficient redrawing going on somewhere. Cursor blink > > code? > > I wonder... > > One thing we do with graphics images is *monitor* the state of the original > file. Does disabling this in support/FileMonitor.C make life better?
Haven't tried that, but I did find the following when using the testing
code:
Index: QLPainter.C
===================================================================
RCS file:
/usr/local/lyx/cvsroot/lyx-devel/src/frontends/qt2/QLPainter.C,v
retrieving revision 1.35
diff -u -p -r1.35 QLPainter.C
--- QLPainter.C 31 Jan 2005 15:26:39 -0000 1.35
+++ QLPainter.C 27 Apr 2005 09:29:17 -0000
@@ -171,6 +171,7 @@ void QLPainter::image(int x, int y, int
static_cast<lyx::graphics::QLImage const &>(i);
fillRectangle(x, y, w, h, LColor::graphicsbg);
+ lyxerr << "Drawing an image" << endl;
qp_->drawImage(x, y, qlimage.qimage(), 0, 0, w, h);
}
When placing an external xfig object and enabling its graphic display,
the lyxerr printout is triggered once. Then, when typing characters even
into paragraphs well below the graphic, _every time_ the printout is
triggered. That's a lot of drawing work for a single character :-)
Whan scrolling the graphic to outside the visible window, also the
printouts disappear.
Is there an easy way to make the drawing more parsimonious? We used to
have that and it was horribly complicated, and Andre cleaned it up, as I
remember. Would it be worth pursuing in this case?
- Martin
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