First, VS2015 doesn't appear to support importing alias templates directly,
so let's make an alias template ourselves and import every alias we need.
That approach doesn't work with VS2013, apparently due to lack of support
for expression SFINAE. Thus, we now use our custom alias templates on
VS2013.
Also, I moved type_trait_aliases.hpp to the wesnothlib project where it
belongs.
Note that because of requiring expression SFINAE on VS2015, building
Wesnoth on VS2015 now requires that Update 1 or above is installed.
The menu_button is now only a drop-down menu that supports a single selection.
A new multimenu_button widget supports a drop-down menu with multiple selections.
The new multimenu_button widget displays its current selection while not open.
No one has used the configuration for a long time. In addition, the code
specific to that configuration was removed in commit 19e0d86e6dc3387196d8c2a8b5236b0828d97178:
after that, the configuration no longer had any differences relative to
Debug.
- WFL tokenizer had a conditionally-compiled test; this is now moved to the official unit tests
- MSVC was not including one of the unit test source files
The purpose of this change is ability to create more dialogs which present
a list of add-ons, such as a GUI2 version of the "Install Dependencies"
dialog.
This change is still highly incomplete. First of all, I disabled inline
install buttons and ability to sort the add-on list. In addition, a lot of
functionality that belongs in the add-on list widget is still in the GUI2
add-on manager instead. It is also notable that the widget relies on
several linked groups being defined in the window.
I plan to finish the transition to the add-on list widget, and address the
problems in the previous paragraph, in the future. The linked group issue
is going to require a lot of work in particular: I plan to either make
linked groups grid-specific instead of window-specific (like they are now)
or allow widgets to inject linked groups to the containing window. Either
way, I'm going to change the operation of GUI2 fairly deeply.
