[rkward-devel] limiting onscreen graphics history

[Thomas Friedrichsmeier]

Hi,

On Wednesday 30 June 2010, Prasenjit Kapat wrote:
> I can improve .rk.grapch.history.gui () marginally so that not all the
> devices need updating when browsing through history.

I haven't looked into your code in detail, but I'm afraid, this had side-
effects, and I suggest to revert this part to the slightly wasteful, but 
simpler, and not significantly slower solution from before.

Bug reports, for the current implementation:
Run
  plot (1, 1)
  plot (2, 2)
  x11 (); plot (3, 3)
- The device history should contain at least two items (1,1 and 2,2) at this 
point. However, the "next"-button remains disabled for the first device.
- Sometimes the "previous"-button remains enabled when at the start of the 
history, and in fact, clicking it, I can wrap around to the last plot. Then 
sometimes it will be disabled at some point, but I have not figured out, when 
or why.

Regards
Thomas
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