Add new RowFlags value CanBreakAfter, which says that the row can be
broken after the inset if needed. There is no CanBreakBefore yet,
because I do not know of an inset that needs it.
This makes screen closer to the actual behavior of insets.
Currently, only unprotected spaces and some special characters are
concerned. There may be more that need this handling.
Fixes bug #11621.
The enum DisplayType is replaced with the flags RowFlags that can be
combined. Here is the correspondence between the old DisplayType and
the new Inset::RowFlags:
DisplayType RowFLags Meaning
Inline Inline plain inline inset
-- BreakBefore row ends before this inset
-- BreakAfter the row ends after this inset
AlignCenter Display the inset is centered on its own row
AlignLeft Display | AlignLeft the inset is left-aligned on its row
AlignRight Display | AlignRight the inset is right-aligned on its row
-- RowAfter an extra row is needed after this inset
Display is just a shortcut for BreakBefore | BreakAfter.
The flags for the newline inset will be BreakAfter | RowAfter,
while the separator inset will just use BreakAfter.
This groundwork does not introduce any new feature at this point. It
aims to remve the numerous isNewLine and isSeparator all over the
code, and to eventually optional break after some insets like spaces
(see #11621).
Most display() methods are renamed to rowFlags(). Some are removed
because they returned Inline.
Now display() is only a helper function for hull insets.
Normalized some style names (e.g. cond -> condensed)
Handle some forgotten fonts (for sure there are more)
Routine getval() tries to get the same language entry for fullname, family and style if possible.
Added some more exceptions (for instance not all fonts with 'symbol' in name contain symbols)
Split family- and style words at case-change (lower to upper case) to identify shortcuts for styles.
Fix paragraph id in xHTML output to the pre-refactoring status.
Tested on math manual (plus minus nonessential newlines).
Slightly modified patch from Thibaut Cuvelier.
