tdf#42346: DOCX export of cross-references to objects

* Objects means tables, images, text frames and shapes
* Implementation
** MSO uses simple bookmark references as cross-references to objects
** So generate bookmarks in export time if a caption is referenced
** In some cases we also need to split some of the runs
** Implemented all types of cross-references, except the chapter reference

Change-Id: I3b17753123d94a04e4f28783ad5663831e7c6c84
Reviewed-on: https://gerrit.libreoffice.org/44294
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Tamás Zolnai <tamas.zolnai@collabora.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/sw/source/filter/ww8/wrtw8nds.cxx b/sw/source/filter/ww8/wrtw8nds.cxx
index 87c27db44c89..23208e90a8fc 100644
--- a/sw/source/filter/ww8/wrtw8nds.cxx
+++ b/sw/source/filter/ww8/wrtw8nds.cxx
@@ -1173,6 +1173,25 @@ void SwWW8AttrIter::OutSwFormatRefMark(const SwFormatRefMark& rAttr)
                                             &rAttr.GetRefName(), 0 ));
 }
 
+void SwWW8AttrIter::SplitRun( sal_Int32 nSplitEndPos )
+{
+    for(auto aIter = maCharRuns.begin(); aIter != maCharRuns.end(); ++aIter)
+    {
+        if(aIter->mnEndPos == nSplitEndPos)
+            return;
+        else if (aIter->mnEndPos > nSplitEndPos)
+        {
+            CharRunEntry aNewEntry = *aIter;
+            aIter->mnEndPos = nSplitEndPos;
+            maCharRuns.insert( ++aIter, aNewEntry);
+            maCharRunIter = maCharRuns.begin();
+            IterToCurrent();
+            nAktSwPos = SearchNext(1);
+            break;
+        }
+    }
+}
+
 void WW8AttributeOutput::FieldVanish( const OUString& rText, ww::eField /*eType*/ )
 {
     ww::bytes aItems;
@@ -2163,6 +2182,10 @@ void MSWordExportBase::OutputTextNode( SwTextNode& rNode )
         AppendBookmark( BookmarkToWord( sBkmkName ) );
     }
 
+    // Call this before write out fields and runs
+    if(GetExportFormat() == ExportFormat::DOCX)
+        AttrOutput().GenerateBookmarksForSequenceField(rNode, aAttrIter);
+
     const OUString& aStr( rNode.GetText() );
 
     sal_Int32 nAktPos = 0;