Implemented ellipsization in the generic, GTK and both OS X Carbon and Cocoa
versions but it currently doesn't work well in GTK as it changes the item
alignment unconditionally, this will need to be fixed later.
The behaviour for the columns is currently inconsistent between ports too:
under MSW they (natively) use wxELLIPSIZE_END, under GTK -- wxELLIPSIZE_NONE
and under OS X the same ellipsization mode as the column contents, i.e.
wxELLIPSIZE_MIDDLE by default.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62433 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
We shouldn't use the same "wxELLIPSIZE_" prefix for two different enums, so
use wxELLIPSIZE_FLAGS one for wxEllipsizeFlags (they should be used less often
than wxEllipsizeMode so it's better to keep the short prefix for the latter).
Also add wxELLIPSIZE_FLAGS_NONE flag.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@62432 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775