sc: filter: rtf: add method "WriteFontTable"

Write the font table while visiting column/row and
get the unique index to reference it.

"The \fonttbl control word introduces the font table group.
Unique \fN control words define each font available in the document,
and are used to reference that font throughout the document."

Signed-off-by: Henry Castro <hcastro@collabora.com>
Change-Id: I20c5d1128972f5ec9b9b2e246f466bdb173ef8a4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/154906
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/155261

2 files changed, 60 insertions, 0 deletions

diff --git a/sc/source/filter/inc/rtfexp.hxx b/sc/source/filter/inc/rtfexp.hxx
index 1c9f1bd7a4af..9d0b204540c7 100644
--- a/sc/source/filter/inc/rtfexp.hxx
+++ b/sc/source/filter/inc/rtfexp.hxx
@@ -28,12 +28,14 @@ class ScRTFExport : public ScExportBase
 {
     std::unique_ptr<sal_uLong[]>  m_pCellX;     // cumulative range in a table
     std::map<OUString, sal_Int32> m_pFontTable;
+    SvMemoryStream m_aFontStrm;
     SvMemoryStream m_aDocStrm;
 
     int                 AddFont( const SvxFontItem& rFontItem );
     void                WriteTab( SCTAB nTab );
     void                WriteRow( SCTAB nTab, SCROW nRow );
     void                WriteCell( SCTAB nTab,  SCROW nRow, SCCOL nCol );
+    void                WriteFontTable(const SvxFontItem& rFontItem, int nIndex);
 
 public:
 
diff --git a/sc/source/filter/rtf/rtfexp.cxx b/sc/source/filter/rtf/rtfexp.cxx
index 3b9e751b1336..b63570dfb249 100644
--- a/sc/source/filter/rtf/rtfexp.cxx
+++ b/sc/source/filter/rtf/rtfexp.cxx
@@ -19,6 +19,9 @@
 
 #include <scitems.hxx>
 
+#include <rtl/tencinfo.h>
+#include <osl/thread.h>
+
 #include <editeng/wghtitem.hxx>
 #include <editeng/postitem.hxx>
 #include <editeng/udlnitem.hxx>
@@ -60,6 +63,8 @@ void ScRTFExport::Write()
     rStrm.WriteChar( '{' ).WriteCharPtr( OOO_STRING_SVTOOLS_RTF_RTF );
     rStrm.WriteCharPtr( OOO_STRING_SVTOOLS_RTF_ANSI ).WriteCharPtr( SAL_NEWLINE_STRING );
 
+    m_aFontStrm.WriteChar( '{' ).WriteOString( OOO_STRING_SVTOOLS_RTF_FONTTBL );
+
     // Data
     for ( SCTAB nTab = aRange.aStart.Tab(); nTab <= aRange.aEnd.Tab(); nTab++ )
     {
@@ -68,6 +73,9 @@ void ScRTFExport::Write()
         WriteTab( nTab );
     }
 
+    m_aFontStrm.WriteChar( '}' );
+    m_aFontStrm.Seek(0);
+    rStrm.WriteStream(m_aFontStrm);
     m_aDocStrm.Seek(0);
     rStrm.WriteStream(m_aDocStrm);
     rStrm.WriteChar( '}' ).WriteOString( SAL_NEWLINE_STRING );
@@ -148,6 +156,51 @@ void ScRTFExport::WriteRow( SCTAB nTab, SCROW nRow )
     m_aDocStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_ROW ).WriteOString( SAL_NEWLINE_STRING );
 }
 
+void ScRTFExport::WriteFontTable(const SvxFontItem& rFontItem, int nIndex)
+{
+    m_aFontStrm.WriteChar( '{' );
+    m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_F );
+    m_aFontStrm.WriteOString( OString::number(nIndex) );
+
+    FontFamily eFamily = rFontItem.GetFamily();
+    if (eFamily == FAMILY_DONTKNOW)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FNIL );
+    else if (eFamily == FAMILY_DECORATIVE)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FDECOR );
+    else if (eFamily == FAMILY_MODERN)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FMODERN );
+    else if (eFamily == FAMILY_ROMAN)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FROMAN );
+    else if (eFamily == FAMILY_SCRIPT)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FSCRIPT );
+    else if (eFamily == FAMILY_SWISS)
+        m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FSWISS );
+
+    m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FPRQ );
+
+    sal_uInt16 nVal = 0;
+    FontPitch ePitch = rFontItem.GetPitch();
+    if ( ePitch == PITCH_FIXED )
+        nVal = 1;
+    else if ( ePitch == PITCH_VARIABLE )
+        nVal = 2;
+    m_aFontStrm.WriteOString( OString::number(nVal) );
+
+    rtl_TextEncoding eDestEnc = RTL_TEXTENCODING_MS_1252;
+    rtl_TextEncoding eChrSet = rFontItem.GetCharSet();
+    if (IsOpenSymbol(rFontItem.GetFamilyName()))
+        eChrSet = RTL_TEXTENCODING_UTF8;
+    else if( RTL_TEXTENCODING_DONTKNOW == eChrSet )
+        eChrSet = osl_getThreadTextEncoding();
+
+    m_aFontStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_FCHARSET );
+    m_aFontStrm.WriteOString( OString::number(rtl_getBestWindowsCharsetFromTextEncoding( eChrSet )) );
+
+    m_aFontStrm.WriteChar( ' ' );
+    RTFOutFuncs::Out_String( m_aFontStrm, rFontItem.GetFamilyName(), eDestEnc );
+    m_aFontStrm.WriteOString( ";}" );
+}
+
 int ScRTFExport::AddFont(const SvxFontItem& rFontItem)
 {
     auto nRet = m_pFontTable.size();
@@ -155,6 +208,7 @@ int ScRTFExport::AddFont(const SvxFontItem& rFontItem)
     if (itFont == m_pFontTable.end())
     {
         m_pFontTable[rFontItem.GetFamilyName()] = nRet;
+        WriteFontTable(rFontItem, nRet);
     }
     else
     {
@@ -204,11 +258,15 @@ void ScRTFExport::WriteCell( SCTAB nTab, SCROW nRow, SCCOL nCol )
 
     bool bResetAttr(false);
 
+    const SvxFontItem&          rFontItem       = pAttr->GetItem( ATTR_FONT );
     const SvxHorJustifyItem&    rHorJustifyItem = pAttr->GetItem( ATTR_HOR_JUSTIFY );
     const SvxWeightItem&        rWeightItem     = pAttr->GetItem( ATTR_FONT_WEIGHT );
     const SvxPostureItem&       rPostureItem    = pAttr->GetItem( ATTR_FONT_POSTURE );
     const SvxUnderlineItem&     rUnderlineItem  = pAttr->GetItem( ATTR_FONT_UNDERLINE );
 
+    m_aDocStrm.WriteOString( OOO_STRING_SVTOOLS_RTF_F )
+        .WriteOString( OString::number(AddFont(rFontItem)) );
+
     const char* pChar;
 
     switch( rHorJustifyItem.GetValue() )