[Pidgin] #4573: Simple GCompareFunc-y API for adding sort methods to the buddy list

[Pidgin]

#4573: Simple GCompareFunc-y API for adding sort methods to the buddy list
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 Reporter:  resiak       |        Owner:              
     Type:  enhancement  |       Status:  new         
Milestone:               |    Component:  pidgin (gtk)
  Version:  2.3.1        |   Resolution:              
 Keywords:               |  
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Comment(by resiak):

 I'm not talking about sorting in libpurple. It's just that, currently you
 have to write sort functions of the order of (looking at gtkblist.c) 80
 lines long, and most of that is boilerplate, pulling the PurpleBlistNodes
 back out of the tree model, finding the right place to insert them based
 on some ordering relative to other nodes, and then inserting them. It
 would be much nicer to be able to just define a total ordering on some
 Pidgin-specific buddy structure and leave the GtkTreeStore wrangling to
 Pidgin.

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Ticket URL: <http://developer.pidgin.im/ticket/4573#comment:2>
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