Now layout files and modules can extend the cite engines or completely
overwrite them, and modify the cite formats.
Any CiteEngine definition in a layout/module will completely overwrite
those by cite engine files.
AddToCiteEngine will extend them (add if they do not exist yet).
Any CiteFormat definition in a layout will be preferred to those in cite
engines. CiteFormat definitions that are not touched by the former are
still active, though (so, as opposed to CiteEngine, a CiteFormat does
not completely overwrite those by the engine files).
Layout format change.
As opposed to modules (from which the framework was initially borrowed),
we only allow one cite engine per document. Thus, we don't need to fiddle
with lists.
This is like `layout', except that the layout is reset to default if
it was already correct. In the case of a selection, the layout is set
normally if some layouts in the selection are not at the required
layout; it is reset only if all the layouts of the selection already
have the required layout.
Part of ticket #9864.
Factor out some code in helper functions. Improve getStatus so that
icon is selected only when the whole selection has the correct layout.
This work towards ticket #9864.
LyX on Mac uses a user directory with version suffix. On change of the version suffix the existence of the directories with previous versions is checked and the latest one is used for a copy on first configure run. For 2.4 the candidate list starts with 2.3 now as it should.
It is now possible in the float settings (doc dialog) to specify a global
(inner) alignment for floats, and in the float settings, this can be
overridden (just as with float placement)
Fixes: #8665
File format change.
In the context menu for a selection, we now only show the options
"Accept Change" and "Reject Change" if there is actually a change in
the selection. Similarly, in the toolbar, the buttons are only
enabled when there is a change in the selection.
This fixes#10338.
Currently if we have a 2.3 file and we open it with a more recent version
we get:
original file: file.lyx
backup file: file-lyxformat-544.lyx~
After this commit the backup file becomes
file-lyx23.lyx~
If the file is from a development version then we get the same result as before.
"Benutzerdefiniert" means "user defined", which is not what "custom"
means here (custom insets/text styles are usually not user defined,
but provided by a class/module).
