From address in compose window

[Peter Bloomfield <PeterBloomfield bellsouth net>]

Hi All!

I'm testing some code for changing the `From:' widget in the  
compose window from a text-entry box with address-book-completion  
(LibBalsaAddressEntry) to a drop-down list (GtkComboBox) of  
addresses from the user's identities.  It's been discussed on  
this list, without opposition iirc.

Changing the `From:' address also changes the identity for the  
message; if we didn't do that, an old signature would be used  
with the new sender.  That also changes other settings, like the  
defaults for signing and encrypting, which might take the user by  
surprise.

The drop-down-list could be expanded to two columns, with the  
address in the first and the identity name in the second.  The  
change of identity would be clearer, but the display would be  
more cluttered.  I'm not sure which would be better.

Comments or suggestions?

Peter