[Martin Mathieson <martin.r.mathieson@xxxxxxxxxxxxxx>]

On Mon, Oct 29, 2012 at 10:07 PM, Edwin Groothuis <Edwin.Groothuis@xxxxxxxxxxxx> wrote:

Hello,

In bug 7931 I have a patch to be able to zoom in into a TCP Graph (tcptrace or stevens) by just marking a rectangle in the graph.
It all works fine but there is one thing which I can't make: The automatic drawing of a rectangle when you are marking it.

Is somebody here who can give me a clue on how to do the drawing of that rectangle?

Edwin
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You could try just draw in a context on top of the current pixmap, then erase it by just redrawing the current pixmap - like we do for the cross-hair lines?

Martin