RTF import: handle RTF_FTNSEP and RTF_CHFTNSEP

Commit 330b8602 (fdo#68787 DOCX import:
handle when w:separator is missing for footnotes, 2013-09-04) disabled
footnote separator by default in dmapper, as the OOXML tokenizer always
provided a uFtnEdnSep in case a separator was wanted.

Let the RTF tokenizer do the same, this way we're in sync with Word
again: if RTF_CHFTNSEP is in RTF_FTNSEP, then we show the separator,
otherwise we don't.

Change-Id: I74b46c5d71227682e093695336dc9eb6fde22121

sw/qa/extras/rtfimport/data/fdo68787.rtf

+{\rtf1
+\ftnbj
+{\*\ftnsep \chftnsep \par}
+\pard\plain
+This will have a separator
+\chftn 
+{\footnote \chftn Footnote.}
+\par
+}

sw/qa/extras/rtfimport/rtfimport.cxx

@@ -1405,6 +1405,13 @@ DECLARE_RTFIMPORT_TEST(testBackground, "background.rtf")
     CPPUNIT_ASSERT_EQUAL(false, bool(getProperty<sal_Bool>(getShape(2), "Opaque")));
 }
 
+DECLARE_RTFIMPORT_TEST(testFdo68787, "fdo68787.rtf")
+{
+    uno::Reference<beans::XPropertySet> xPageStyle(getStyles("PageStyles")->getByName(DEFAULT_STYLE), uno::UNO_QUERY);
+    // This was 0, the 'lack of \chftnsep' <-> '0 line width' mapping was missing in the RTF tokenizer.
+    CPPUNIT_ASSERT_EQUAL(sal_Int32(25), getProperty<sal_Int32>(xPageStyle, "FootnoteLineRelativeWidth"));
+}
+
 CPPUNIT_PLUGIN_IMPLEMENT();
 
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

writerfilter/source/rtftok/rtfdocumentimpl.cxx

@@ -1739,6 +1739,10 @@ int RTFDocumentImpl::dispatchDestination(RTFKeyword nKeyword)
                 m_aStates.top().bInShapeGroup = true;
             }
             break;
+        case RTF_FTNSEP:
+            m_aStates.top().nDestinationState = DESTINATION_FOOTNOTESEPARATOR;
+            m_aStates.top().aCharacterAttributes.set(NS_ooxml::LN_CT_FtnEdn_type, RTFValue::Pointer_t(new RTFValue(NS_ooxml::LN_Value_wordprocessingml_ST_FtnEdn_separator)));
+            break;
         default:
             SAL_INFO("writerfilter", "TODO handle destination '" << lcl_RtfToString(nKeyword) << "'");
             // Make sure we skip destinations (even without \*) till we don't handle them
@@ -1806,7 +1810,13 @@ int RTFDocumentImpl::dispatchSymbol(RTFKeyword nKeyword)
                     runProps();
                 if (!m_aStates.top().pCurrentBuffer)
                 {
-                    parBreak();
+                    if (m_aStates.top().nDestinationState == DESTINATION_FOOTNOTESEPARATOR)
+                    {
+                        static const sal_Unicode uCR = 0xd;
+                        Mapper().utext((const sal_uInt8*)&uCR, 1);
+                    }
+                    else
+                        parBreak();
                     // Not in table? Reset max width.
                     m_nCellxMax = 0;
                 }
@@ -2020,6 +2030,12 @@ int RTFDocumentImpl::dispatchSymbol(RTFKeyword nKeyword)
                 singleChar(0x15);
             }
             break;
+        case RTF_CHFTNSEP:
+            {
+                static const sal_Unicode uFtnEdnSep = 0x3;
+                Mapper().utext((const sal_uInt8*)&uFtnEdnSep, 1);
+            }
+            break;
         default:
             {
                 SAL_INFO("writerfilter", "TODO handle symbol '" << lcl_RtfToString(nKeyword) << "'");

writerfilter/source/rtftok/rtflistener.hxx

@@ -150,6 +150,7 @@ namespace writerfilter {
             DESTINATION_LFOLEVEL,
             DESTINATION_BACKGROUND,
             DESTINATION_SHAPEGROUP,
+            DESTINATION_FOOTNOTESEPARATOR,
         };
 
         enum RTFErrors