Kevin Mehall bd58861b09 Ignore summarized messages when calculating rendering windows. ...

Summary blocks can contain hundreds of messages. When the rendering window
code didn't take this into account, it would lead to all kinds of
unpleasant behavior when you scroll.

Trac #1888

Unfortunately, this replaces a subtraction with a function that iterates
through all the messages.

(imported from commit 9259a246946cd968a8725c38ff5ef2d4b4793717)

2013-10-21 11:48:57 -04:00

17 KiB

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