Measuring time between events in control flow view

Hey everyone,

One viewer feature that I've been wanting to work on, but never
had time, is a way to measure a length of time in the control flow
viewer.  I started working on it once, but didn't get very far
because I don't know GTK.  Basically, on a right mouse click in
the control flow window, I was going to pop up a box, or display
in the Time Frame window somewhere, the interval between the
current mouse position and the cursor position (current time).

I find that I often want to measure the length of time
between events in the control flow view.  It's pretty hard
to do it reading the 10-digit time value numbers.

Has anyone else worked on anything like this?
 -- Tim

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Tim Bird
Architecture Group Chair, CE Linux Forum
Senior Staff Engineer, Sony Electronics
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