This allows to restrict the use of flex insets to specific contexts.
Note that this is currently very basis. It only considers immediately
containing insets/layouts and can be surpassed via cut and paste.
The use case that made me finally implement this are macros in covington
that make sense only in specific environments (but also consider \inst
in some article classes)
Each removed inheritFont method is replaced by a 'InheritFont false'
line in the relevant InsetLayout entry.
Add code to layout2layout that does this automatically when the entry
is missing.
The case of InsetScript is special, since the inheritFont() was not
needed here: the default is indeed true.
Fixes bug #12238.
It turns out that LyX was using red as default color for the
inset button text since ever. However, due to the use of "inherit",
the default button text color was black in practice. This was so
until [897ee2ed/lyxgit], which made the label font not inherited
by default anymore. Hence, all insets that didn't specify a specific
label button color started using red as default color.
This commit restores the previous behavior and introduces the
possibility of modifying this default color.
Fixes bug #12771
The new parameter allows more flexibility when encoding some elements that have a poor mapping in DocBook, like theorems. The major use is to wrap the environment in a generic container, figure, which requires a title (but none is available).
This is a variant of Input for layout files that only searches build
and system directories and thus allows "InputGlobal name.inc" in a user
file name.inc that attempts to modify its global counterpart.
For elements that should behave like sections (for now, mostly prefaces).
A second paragraph of PartBacktext can only wreak havok: it should start a section, and nothing else (otherwise, it's a real nightmare to implement).
When validating local layout, in particular, we create a dummy text TextClass
and so are not necessarily modifying previously declared material. Hence, we
get a spurious (but harmless) "Incomplete argument definition!" warning. This
suppresses it, but to do that we need to propogate the ReadType.
This lead to a quite subtle bug. The major problem is that float tags
depend on whether the LyX float has a title (formal) or nor (informal).
This information cannot be encoded in the layout format as easily as a
simple DocBookTag.
