As this required to first generate the paragraph before outputting it if necessary, tests like XMLStream::isTagOpen no more worked properly. This also refactors table handling to get rid of that case (and make code easier to read).
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.
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.
The basic value is Inset::textOffset(BufferView*), which can in theory
change with the BufferView zoom and dpi. It is hardcoded to 4 for now.
Moreover, we introduce the virtual inset methods
(top|bottom|left|right)Offset, which can be tweaked for each inset.
No change intended (for now).
Fixes part of #8469
For a proper fix that works with change-reject as well as with hide
changes in output, we need to implement
ct information in tabular's row and column.
This is better than making sure that the inset has exactly one cell.
In the future, inset-dissolve could be extended to dissolve all the
cells contents in the enclosing text.
Note that this check does not appear in mathed, and using dissolve in
e.g. fraction inset may lead to data loss (only current cell contents
is preserved).
