The 20px space on top and bottom of document have traditionally been
obtained by adding the to the ascent/descent of the first/last row.
This reads to annoyances like selections that are drawn in these
margins and issues with the nesting marker.
The change is to add the values to a separate member of the Row
object, and to add new Row::total(Ascent|Descent) methods that add the
effect of this padding.
Moreover, some methods are added to TextMetrics to simplify the
BufferView code.
Fixes bug #9545.
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.
Return early when format is unknown. I am not sure whether this is
supposed to happen and whether we should assert on this condition.
Spotted by coverity.
It turns out that the resources were mostly not used anyway. Removing
them shrinks LyX binary by ~6MB.
Only autotools have been adapted. cmake will require the same
simplification.
74540c98 was a fixup of d207e85c, which avoided using inset background
as inset label background.
d207e85c introduced a background under inset labels to avoid fake bold
effect.
Hopefully, this last variation will be the right one !
