[Pidgin] #3895: Visual cue for "insert" or "overwrite"

[Pidgin]

#3895: Visual cue for "insert" or "overwrite"
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 Reporter:  andrixnet     |       Type:  enhancement
   Status:  new           |   Priority:  minor      
Component:  pidgin (gtk)  |    Version:  2.2.2      
 Keywords:                |    Pending:  0          
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 (valid for pidgin&winpidgin)

 When in conversation window, typing a message, the "Insert" key toggles
 between "INSERT" and "OVERWRITE" behaviour of the text entry field.

 A visual cue to show which behaviour is currently active would be nice.

 Suggestion : for "overwrite" behaviour, make the cursor like a block
 instead of the usual vertical line. (some editors use this scheme so that
 the UI doesn't get too overloaded)

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Ticket URL: <http://developer.pidgin.im/ticket/3895>
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