[Kst] Strings

[George Staikos]

  I added the String type to plugins today.  I went with my second 
implementation (KstString instead of KstStringIface) because it fits better 
with scalars.  I'm not sure it's the right choice yet, but Marc-Antoine and 
the others at IAS really need this functionality badly so I need to provide 
them with at least the ability to use strings with plugins and display 
strings in labels or via DCOP.  I didn't add any more implementation than 
necessary so we can more easily wipe it out or redo it if there is a better 
route.

   What are KstStrings?  Basically equivalents to KstScalars.  They look and 
behave in an identical manner and even share namespace.  They store a QString 
instead of a double, obviously.  

   There is a little race in KstPlugin I think - that is, that it stores 
the .latin1() of a QString as it calls into the plugin, and if this changes 
meanwhile, it will invalidate that memory.  I have to make it do a deep copy 
of the string, which I may get to tonight.

   Now the question is, where do strings belong in Kst, what should they 
do/not do, and is this (current one) a good approach?

-- 
George Staikos
KDE Developer				http://www.kde.org/
Staikos Computing Services Inc.		http://www.staikos.net/