0017: Encapsulation of reference type returned by wxString::operator[]
0018: Interface change for classes deriving from wxGridTableBase
0017
----
The NumericTextCtrl relies on the fact that the value returned by
wxString::operator[] is a "wxChar&". However, in wxWidgets 3.0 it is a
wxUniCharRef (encapsulation of a reference to characters, to improve unicode
handling).
wxString::reference provides the correct type in both wx2.8 and wx3.0 and can be
used as writable reference in both cases. However, for the case of an update of
the reference itself (instead of the value), there is no common syntax. In this
case the character position within the string has to be used as reference.
0018
----
With wx3.0, different methods have to be implemented (EndEdit with new signature
and ApplyEdit) than with wx2.8 (only EndEdit with old signature). Now both
versions are implemented in parallel in the classes TimeEditor and ChoiceEditor
(one version essentially being a wrapper of the other one).
Note: Superseding the previous solution of the issue (committed in r13403) by one
that avoids code duplication. This should avoid problems with missed changes in
code that isn't used with the wxWidgets version that the developer tests with
(like just happened in r13557).
We can't go to 3.0.1 yet as there are still build issues on
Linux and OSX. You can get Windows to build, but there's
still some display issues.
These changes should work with wxWidgets 2.8.12 as well, so
we can take our time to get things working properly before
switching over.
