tdf#122430 RTF import: fix lost font size on footnote start

This become more visible since commit
49614a9e (tdf#119599 RTF import: fix
missing deduplication of font size, 2018-09-24) as now incorrect font
size from style affects the rendering result.

Change-Id: I5b339337f021e2fc359f6fc5f5aa2ed0bcf844b9
Reviewed-on: https://gerrit.libreoffice.org/67034
Tested-by: Jenkins
Reviewed-by: Miklos Vajna <vmiklos@collabora.com>

sw/qa/extras/rtfimport/data/tdf122430.rtf

+{\rtf1\ansi\deff0\adeflang1025
+{\fonttbl
+{\f0\froman\fprq2\fcharset0 Times New Roman;}
+{\f1\froman\fprq2\fcharset2 Symbol;}
+{\f2\fswiss\fprq2\fcharset0 Arial;}
+{\f3\froman\fprq2\fcharset0 Arial;}
+{\f4\froman\fprq2\fcharset0 Cambria;}
+{\f5\froman\fprq2\fcharset0 Calibri;}
+{\f6\fnil\fprq2\fcharset0 Microsoft YaHei;}
+{\f7\fnil\fprq2\fcharset0 Cambria;}
+{\f8\fnil\fprq2\fcharset0 Times New Roman;}
+{\f9\fnil\fprq2\fcharset0 Lucida Sans;}
+{\f10\fswiss\fprq0\fcharset128 Lucida Sans;}
+}
+{\colortbl;\red0\green0\blue0;\red0\green0\blue255;\red0\green255\blue255;\red0\green255\blue0;\red255\green0\blue255;\red255\green0\blue0;\red255\green255\blue0;\red255\green255\blue255;\red0\green0\blue128;\red0\green128\blue128;\red0\green128\blue0;\red128\green0\blue128;\red128\green0\blue0;\red128\green128\blue0;\red128\green128\blue128;\red192\green192\blue192;}
+{\stylesheet
+{\s0\snext0\ql\nowidctlpar\hyphpar0\ltrpar\cf1\kerning1\dbch\af7\langfe1081\dbch\af7\afs24\alang1081\loch\f0\fs24\lang1040 Normal;}
+{\s43\snext43\ql\nowidctlpar\hyphpar0\faauto\li0\ri0\lin0\rin0\fi0\sb240\sa120\keepn\ltrpar\cf1\b\kerning1\dbch\af7\langfe1040\dbch\af9\afs24\alang1081\loch\f3\fs36\lang1040 Titolo 1;}
+{\s61\sbasedon0\snext61\ql\nowidctlpar\hyphpar0\ltrpar\cf1\kerning1\dbch\af7\langfe1081\dbch\af7\afs24\loch\f0\fs24\lang1040 Footnote;}
+}
+\pard\plain \s43\ql\nowidctlpar\hyphpar0\faauto\li0\ri0\lin0\rin0\fi0\sb240\sa120\keepn\ltrpar\cf1\b\kerning1\dbch\af7\langfe1040\dbch\af9\afs24\alang1081\loch\f3\fs36\lang1040\sb240\sa120
+{
+{\super 1
+{\*\footnote 1\pard\plain \s61\fs24
+{\cf1\kerning1\dbch\af7\langfe1040\rtlch \ltrch\rtlch \ltrch\loch\fs20\lang1040
+\tab A}
+}
+}
+}
+A
+\par}

sw/qa/extras/rtfimport/rtfimport.cxx

@@ -355,6 +355,13 @@ DECLARE_RTFIMPORT_TEST(testTdf112211_2, "tdf112211-2.rtf")
     CPPUNIT_ASSERT_LESS(300, nWidth);
 }
 
+DECLARE_RTFIMPORT_TEST(testTdf122430, "tdf122430.rtf")
+{
+    // Without the accompanying fix in place, this test would have failed with
+    // 'Expected: 18, Actual  : 12', i.e. the font was smaller than expected.
+    CPPUNIT_ASSERT_EQUAL(18.0f, getProperty<float>(getRun(getParagraph(1), 2), "CharHeight"));
+}
+
 DECLARE_RTFIMPORT_TEST(testFdo49892, "fdo49892.rtf")
 {
     uno::Reference<drawing::XDrawPageSupplier> xDrawPageSupplier(mxComponent, uno::UNO_QUERY);

writerfilter/source/rtftok/rtfdispatchflag.cxx

@@ -773,6 +773,14 @@ RTFError RTFDocumentImpl::dispatchFlag(RTFKeyword nKeyword)
         break;
         case RTF_SUPER:
         {
+            // Make sure character properties are not lost if the document
+            // starts with a footnote.
+            if (!isStyleSheetImport())
+            {
+                checkFirstRun();
+                checkNeedPap();
+            }
+
             if (!m_aStates.top().pCurrentBuffer)
                 m_aStates.top().pCurrentBuffer = &m_aSuperBuffer;