clipping by disjoint filled paths is broken

[David Mathog]

For reasons I won't go into on converting a clip from SVG to EMF when the clip path consists of, for instance, a group
made up of two disjoint rectangles it will be converted to a single path with two disjoint areas. On reimport from EMF
this causes problems. I believe this is an inkscape bug because the resulting disjoint single path SVG renders properly in firefox.

What happens, at least on linux, is that the draw is unstable, with various parts of the clipped image drawn or not, depending upon zoom, scrolling, and other extraneous factors.

[David Mathog (mathog)]

The original (preceding post) renders correctly in Inkscape and Firefox. This version, with the clipping region stored as a single path with two disjoint subpaths, renders correctly in Firefox but variably and incorrectly in Inkscape.

[David Mathog (mathog)]

This is a screen shot showing one of the ways this bug manifests itself. There should be a second red rectangle where the vertical red line is located, and there should be another section of text below it.

[ScislaC (scislac)]

I can't reproduce that here with trunk r13543 or stable on Utopic.

[David Mathog (mathog)]

Interesting. I see it with r13543 on Ubuntu 12.04 lts, 32 bit. It is going through an ssh X11 tunnel to Cygwin's X11 server, but glitches at the X11 level on that route are exceedingly rare.

[David Mathog (mathog)]

Ran the bad one on the console of the development machine - locally. No problems. There is just a problem running it over the ssh X11 tunnel to the Cygwin X11 server. The glitch can be triggered fairly reliably by zooming the image up and down, whereupon somewhere along the line one of the rectangular pieces reduces to a vertical line and the accompanying block of text tends to disappear. I was unable to duplicate that on the the console.