the rest from `tools/convert_boost.sh`.
* replace boost::function, boost::bind with std::function and std::bind.
This required some manual fixes, notably std::placeholders,
some static_casts<>, and boost::function::clear -> = {}.
we allow use of/dependency on sigc::trackable there, so this is
both legal but also sensible.
Leave the macro definition of invalidator(x) in gtkmm2ext/gui_thread.h
because it doesn't hurt and makes some sense for it to be there. No
reason for a source module that needs invalidator(x) to load EventLoop
decl.
Consistently use Tertiary for Group Override on all platforms (and be consistent about it)
Consistently use Primary-mod for Momentary on all platforms (partially reverts 47932f)
Primary modifier is used for fine-adjust on knobs and sliders, with no analogous operation on switches.
is_button2_event() was used to detect the user's desire for a
momentary-click on some buttons (mute, solo, mixer scenes)
is_momentary_push_event() disambiguates this action from is_button2_event()
for the special case of momentary, we can drop the workarounds for
the lack of middle-mouse buttons on Mac, and instead just use
shift+left-click on all platforms.
This addresses the issue described in 83719fba1a.
First process all queued self_delete() requests before scheduling
Editor::redisplay_track_views() which uses PRIORITY_DEFAULT.
This causes issues if the header is included early on
in particular a conflict with gdkx.h
The reference to ‘Window’ is ambiguous `Gtk::Window` vs [X11]Window.
1) if there is no current dialog, allow some other window to handle the keyboard event
2) make the binding (which is hard coded) visible as static members of Keyboard
Previous 16 bit mask would do the wrong thing if the keycode was > 65536,
which is not often true but is certainly a valid value (and seen on some
platforms)
