[Inkscape-devel] Initial abort() ability during tracing

Hi all...

I added some hooks to the tracer to be able to update the GUI while in the midst of heavy processing, and to catch an abort() if the user hits the Stop button. I checked in an initial ability to do this.

(Yes, I know that there are no status messages, the buttons don't make a 'clicky' sound when you hit them, there is no hour glass 'busy' icon, no multi-colored progress bar, etc, blah, blah, blah, all that other silly stuff. I just want to make sure that abort() works ;-)

Bob