sw floatable: teach the DOC export about SwFormatFlySplit

Floating tables were always written back as a shape, containing a table,
which can't split over pages, not even in Word.

Now that we have split flys, we know that floating tables are mapped to
split flys, so we can map split flys back to floating tables on export.

The following SPRMs need writing, which are more or less the equivalent
to DOCX's <w:tblpPr> attributes:

- sprmTPc: relation orient for positioning the table
- sprmTDyaFromText, sprmTDyaFromTextBottom: top/bottom margin
- sprmTDxaFromText, sprmTDxaFromTextRight: left/right margin
- sprmTDxaAbs: horizontal orientation
- sprmTDyaAbs: vertical orientation

With this, testTdf107773 passes in the SW_FORCE_FLY_SPLIT=1 case, while
previously only the import side worked.

Change-Id: Id534c1497eb56f9268bf49d2a19764051397bb18
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/150464
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>
Tested-by: Jenkins

1 files changed, 16 insertions, 1 deletions

diff --git a/sw/source/filter/ww8/wrtw8nds.cxx b/sw/source/filter/ww8/wrtw8nds.cxx
index 61d73c32f242..71f33f3a7d14 100644
--- a/sw/source/filter/ww8/wrtw8nds.cxx
+++ b/sw/source/filter/ww8/wrtw8nds.cxx
@@ -99,6 +99,7 @@
 
 #include <ndgrf.hxx>
 #include <ndole.hxx>
+#include <formatflysplit.hxx>
 
 #include <cstdio>
 
@@ -3464,7 +3465,21 @@ void WW8AttributeOutput::OutputFlyFrame_Impl( const ww8::Frame& rFormat, const P
     if (bUseEscher)
     {
         // write as escher
-        m_rWW8Export.AppendFlyInFlys(rFormat, rNdTopLeft);
+        if (rFrameFormat.GetFlySplit().GetValue())
+        {
+            // The frame can split: this was originally from a floating table, write it back as
+            // such.
+            const SwNodeIndex* pNodeIndex = rFrameFormat.GetContent().GetContentIdx();
+            SwNodeOffset nStt = pNodeIndex ? pNodeIndex->GetIndex() + 1 : SwNodeOffset(0);
+            SwNodeOffset nEnd = pNodeIndex ? pNodeIndex->GetNode().EndOfSectionIndex() : SwNodeOffset(0);
+            m_rWW8Export.SaveData(nStt, nEnd);
+            GetExport().WriteText();
+            m_rWW8Export.RestoreData();
+        }
+        else
+        {
+            m_rWW8Export.AppendFlyInFlys(rFormat, rNdTopLeft);
+        }
     }
     else
     {