vcl: Make ImplFontCharMap a pImpl and move functions to FontCharMap

To do this, I've made FontCharMap a friend class for ImplFontCharMap,
and have moved the functions directly into FontCharMap. In this patch,
I am attempting to stop the direct use of ImplFontCharMap by anything
other than FontCharMap. However, FontCharMap itself requires a
refcounter, so we will use FontCharMapPtr to access the font character
map.

Change-Id: I509b990a8cbd911c5cc1572c7d24fc5348ca06d9
Reviewed-on: https://gerrit.libreoffice.org/11823
Reviewed-by: Chris Sherlock <chris.sherlock79@gmail.com>
Tested-by: Chris Sherlock <chris.sherlock79@gmail.com>

20 files changed, 306 insertions, 317 deletions

diff --git a/vcl/generic/fontmanager/fontmanager.cxx b/vcl/generic/fontmanager/fontmanager.cxx
index 746d8395b51b..53448c61a752 100644
--- a/vcl/generic/fontmanager/fontmanager.cxx
+++ b/vcl/generic/fontmanager/fontmanager.cxx
@@ -2088,7 +2088,7 @@ void PrintFontManager::getGlyphWidths( fontID nFont,
                 CmapResult aCmapResult;
                 if( ParseCMAP( pCmapData, nCmapSize, aCmapResult ) )
                 {
-                    const ImplFontCharMapPtr pCharMap( new ImplFontCharMap(aCmapResult) );
+                    FontCharMapPtr pCharMap( new FontCharMap(aCmapResult) );
                     for( sal_uInt32 cOld = 0;;)
                     {
                         // get next unicode covered by font
@@ -2105,6 +2105,8 @@ void PrintFontManager::getGlyphWidths( fontID nFont,
                         // update the requested map
                         rUnicodeEnc[ (sal_Unicode)c ] = aGlyphId;
                     }
+
+                    pCharMap = 0;
                 }
             }
         }
diff --git a/vcl/generic/glyphs/gcach_ftyp.cxx b/vcl/generic/glyphs/gcach_ftyp.cxx
index 4a8ddd014ded..9e12d5a2be05 100644
--- a/vcl/generic/glyphs/gcach_ftyp.cxx
+++ b/vcl/generic/glyphs/gcach_ftyp.cxx
@@ -1266,13 +1266,13 @@ bool ServerFont::GetGlyphBitmap8( sal_GlyphId aGlyphId, RawBitmap& rRawBitmap )
 
 // determine unicode ranges in font
 
-const ImplFontCharMapPtr ServerFont::GetImplFontCharMap( void ) const
+const FontCharMapPtr ServerFont::GetFontCharMap() const
 {
-    const ImplFontCharMapPtr pIFCMap = mpFontInfo->GetImplFontCharMap();
-    return pIFCMap;
+    const FontCharMapPtr pFCMap = mpFontInfo->GetFontCharMap();
+    return pFCMap;
 }
 
-const ImplFontCharMapPtr FtFontInfo::GetImplFontCharMap( void )
+const FontCharMapPtr FtFontInfo::GetFontCharMap()
 {
     // check if the charmap is already cached
     if( mpFontCharMap )
@@ -1283,12 +1283,13 @@ const ImplFontCharMapPtr FtFontInfo::GetImplFontCharMap( void )
     bool bOK = GetFontCodeRanges( aCmapResult );
     if( bOK )
     {
-        ImplFontCharMapPtr pFontCharMap( new ImplFontCharMap( aCmapResult ) );
+        FontCharMapPtr pFontCharMap( new FontCharMap ( aCmapResult ) );
         mpFontCharMap = pFontCharMap;
     }
     else
     {
-        mpFontCharMap = ImplFontCharMap::GetDefaultMap();
+        FontCharMapPtr pFontCharMap( new FontCharMap() );
+        mpFontCharMap = pFontCharMap;
     }
     // mpFontCharMap on either branch now has a refcount of 1
     return mpFontCharMap;
diff --git a/vcl/generic/glyphs/gcach_ftyp.hxx b/vcl/generic/glyphs/gcach_ftyp.hxx
index 803ce072a955..21cd6538bcca 100644
--- a/vcl/generic/glyphs/gcach_ftyp.hxx
+++ b/vcl/generic/glyphs/gcach_ftyp.hxx
@@ -84,7 +84,7 @@ public:
     void                  CacheGlyphIndex( sal_UCS4 cChar, int nGI ) const;
 
     bool                  GetFontCodeRanges( CmapResult& ) const;
-    const ImplFontCharMapPtr GetImplFontCharMap( void );
+    const FontCharMapPtr  GetFontCharMap();
 
 private:
     FT_FaceRec_*    maFaceFT;
@@ -99,7 +99,7 @@ private:
     sal_IntPtr      mnFontId;
     ImplDevFontAttributes maDevFontAttributes;
 
-    ImplFontCharMapPtr mpFontCharMap;
+    FontCharMapPtr  mpFontCharMap;
 
     // cache unicode->glyphid mapping because looking it up is expensive
     // TODO: change to boost::unordered_multimap when a use case requires a m:n mapping
diff --git a/vcl/generic/print/genpspgraphics.cxx b/vcl/generic/print/genpspgraphics.cxx
index 759519b3cefa..644e4fdb99a3 100644
--- a/vcl/generic/print/genpspgraphics.cxx
+++ b/vcl/generic/print/genpspgraphics.cxx
@@ -777,13 +777,13 @@ void GenPspGraphics::DrawServerFontLayout( const ServerFontLayout& rLayout )
     DrawPrinterLayout( rLayout, *m_pPrinterGfx, true );
 }
 
-const ImplFontCharMapPtr GenPspGraphics::GetImplFontCharMap() const
+const FontCharMapPtr GenPspGraphics::GetFontCharMap() const
 {
     if( !m_pServerFont[0] )
         return NULL;
 
-    const ImplFontCharMapPtr pIFCMap = m_pServerFont[0]->GetImplFontCharMap();
-    return pIFCMap;
+    const FontCharMapPtr pFCMap = m_pServerFont[0]->GetFontCharMap();
+    return pFCMap;
 }
 
 bool GenPspGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
diff --git a/vcl/headless/svptext.cxx b/vcl/headless/svptext.cxx
index 905d78bef9fd..8fc51ced7ddb 100644
--- a/vcl/headless/svptext.cxx
+++ b/vcl/headless/svptext.cxx
@@ -231,13 +231,13 @@ void SvpSalGraphics::GetFontMetric( ImplFontMetricData* pMetric, int nFallbackLe
     }
 }
 
-const ImplFontCharMapPtr SvpSalGraphics::GetImplFontCharMap() const
+const FontCharMapPtr SvpSalGraphics::GetFontCharMap() const
 {
     if( !m_pServerFont[0] )
         return NULL;
 
-    const ImplFontCharMapPtr pIFCMap = m_pServerFont[0]->GetImplFontCharMap();
-    return pIFCMap;
+    const FontCharMapPtr pFCMap = m_pServerFont[0]->GetFontCharMap();
+    return pFCMap;
 }
 
 bool SvpSalGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
diff --git a/vcl/inc/generic/genpspgraphics.h b/vcl/inc/generic/genpspgraphics.h
index 66c7f31f3802..2a562c341ff7 100644
--- a/vcl/inc/generic/genpspgraphics.h
+++ b/vcl/inc/generic/genpspgraphics.h
@@ -89,7 +89,7 @@ public:
     virtual void            SetTextColor( SalColor nSalColor ) SAL_OVERRIDE;
     virtual sal_uInt16      SetFont( FontSelectPattern*, int nFallbackLevel ) SAL_OVERRIDE;
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel ) SAL_OVERRIDE;
-    virtual const ImplFontCharMapPtr GetImplFontCharMap() const SAL_OVERRIDE;
+    virtual const FontCharMapPtr GetFontCharMap() const SAL_OVERRIDE;
     virtual bool            GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const SAL_OVERRIDE;
     virtual void            GetDevFontList( PhysicalFontCollection* ) SAL_OVERRIDE;
     // graphics must drop any cached font info
diff --git a/vcl/inc/generic/glyphcache.hxx b/vcl/inc/generic/glyphcache.hxx
index 1a3da60118fc..ba44ae8412b3 100644
--- a/vcl/inc/generic/glyphcache.hxx
+++ b/vcl/inc/generic/glyphcache.hxx
@@ -33,9 +33,9 @@
 #include <com/sun/star/i18n/XBreakIterator.hpp>
 #include <tools/gen.hxx>
 #include <vcl/dllapi.h>
+#include <vcl/metric.hxx>
 
 #include <outfont.hxx>
-#include <impfont.hxx>
 #include <sallayout.hxx>
 
 class FtFontInfo;
@@ -182,7 +182,7 @@ public:
     const unsigned char* GetTable( const char* pName, sal_uLong* pLength );
     int                 GetEmUnits() const { return maFaceFT->units_per_EM;}
     const FT_Size_Metrics& GetMetricsFT() const { return maSizeFT->metrics; }
-    const ImplFontCharMapPtr GetImplFontCharMap() const;
+    const FontCharMapPtr GetFontCharMap() const;
     bool                GetFontCapabilities(vcl::FontCapabilities &) const;
 
     GlyphData&                  GetGlyphData( sal_GlyphId );
diff --git a/vcl/inc/headless/svpgdi.hxx b/vcl/inc/headless/svpgdi.hxx
index aad4693d35e7..a872d4a2019d 100644
--- a/vcl/inc/headless/svpgdi.hxx
+++ b/vcl/inc/headless/svpgdi.hxx
@@ -23,6 +23,7 @@
 #include <basebmp/bitmapdevice.hxx>
 #include <basebmp/color.hxx>
 #include <vcl/sysdata.hxx>
+#include <vcl/metric.hxx>
 
 #include "salgdi.hxx"
 #include "sallayout.hxx"
@@ -156,7 +157,7 @@ public:
     virtual void            SetTextColor( SalColor nSalColor ) SAL_OVERRIDE;
     virtual sal_uInt16      SetFont( FontSelectPattern*, int nFallbackLevel ) SAL_OVERRIDE;
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel ) SAL_OVERRIDE;
-    virtual const ImplFontCharMapPtr GetImplFontCharMap() const SAL_OVERRIDE;
+    virtual const FontCharMapPtr GetFontCharMap() const SAL_OVERRIDE;
     virtual bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const SAL_OVERRIDE;
     virtual void            GetDevFontList( PhysicalFontCollection* ) SAL_OVERRIDE;
     virtual void ClearDevFontCache() SAL_OVERRIDE;
diff --git a/vcl/inc/impfont.hxx b/vcl/inc/impfont.hxx
index af97677f3999..8efb30b9363f 100644
--- a/vcl/inc/impfont.hxx
+++ b/vcl/inc/impfont.hxx
@@ -163,34 +163,18 @@ public:
     explicit            ImplFontCharMap( const CmapResult& );
     virtual             ~ImplFontCharMap();
 
-    static ImplFontCharMapPtr GetDefaultMap( bool bSymbols=false);
-
-    bool                IsDefaultMap() const;
-    bool                HasChar( sal_uInt32 ) const;
-    int                 CountCharsInRange( sal_uInt32 cMin, sal_uInt32 cMax ) const;
-    int                 GetCharCount() const { return mnCharCount;}
-
-    sal_uInt32          GetFirstChar() const { return mpRangeCodes[0];}
-    sal_uInt32          GetLastChar() const;
-
-    sal_uInt32          GetNextChar( sal_uInt32 ) const;
-    sal_uInt32          GetPrevChar( sal_uInt32 ) const;
-
-    int                 GetIndexFromChar( sal_uInt32 ) const;
-    sal_uInt32          GetCharFromIndex( int ) const;
-
-    int                 GetGlyphIndex( sal_uInt32 ) const;
-
 private:
+    friend class FontCharMap;
     friend void intrusive_ptr_add_ref(ImplFontCharMap* pImplFontCharMap);
     friend void intrusive_ptr_release(ImplFontCharMap* pImplFontCharMap);
 
-    int                 ImplFindRangeIndex( sal_uInt32 ) const;
-
     // prevent assignment and copy construction
     explicit            ImplFontCharMap( const ImplFontCharMap& );
     void                operator=( const ImplFontCharMap& );
 
+    static ImplFontCharMapPtr getDefaultMap( bool bSymbols=false);
+    bool                isDefaultMap() const;
+
 private:
     const sal_uInt32*   mpRangeCodes;     // pairs of StartCode/(EndCode+1)
     const int*          mpStartGlyphs;    // range-specific mapper to glyphs
diff --git a/vcl/inc/quartz/salgdi.h b/vcl/inc/quartz/salgdi.h
index 0c58ca7da621..45a12c4ee63b 100644
--- a/vcl/inc/quartz/salgdi.h
+++ b/vcl/inc/quartz/salgdi.h
@@ -45,6 +45,7 @@ extern "C" {
 #include "postmac.h"
 
 #include <vcl/fontcapabilities.hxx>
+#include <vcl/metric.hxx>
 
 #include "outfont.hxx"
 #include "PhysicalFontFace.hxx"
@@ -73,7 +74,7 @@ public:
     CoreTextStyle*                  CreateTextStyle( const FontSelectPattern& ) const;
     int                             GetFontTable( const char pTagName[5], unsigned char* ) const;
 
-    const ImplFontCharMapPtr        GetImplFontCharMap() const;
+    const FontCharMapPtr            GetFontCharMap() const;
     bool                            GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const;
     bool                            HasChar( sal_uInt32 cChar ) const;
 
@@ -85,7 +86,7 @@ protected:
 
 private:
     const sal_IntPtr                mnFontId;
-    mutable ImplFontCharMapPtr      mpCharMap;
+    mutable FontCharMapPtr          mpCharMap;
     mutable vcl::FontCapabilities   maFontCapabilities;
     mutable bool                    mbOs2Read;       // true if OS2-table related info is valid
     mutable bool                    mbHasOs2Table;
@@ -330,8 +331,7 @@ public:
     // get the current font's metrics
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel ) SAL_OVERRIDE;
     // get the repertoire of the current font
-    virtual const ImplFontCharMapPtr
-                            GetImplFontCharMap() const SAL_OVERRIDE;
+    virtual const FontCharMapPtr GetFontCharMap() const SAL_OVERRIDE;
     virtual bool            GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const SAL_OVERRIDE;
     // graphics must fill supplied font list
     virtual void            GetDevFontList( PhysicalFontCollection* ) SAL_OVERRIDE;
diff --git a/vcl/inc/salgdi.hxx b/vcl/inc/salgdi.hxx
index c2752b92447f..b49f9ecd1083 100644
--- a/vcl/inc/salgdi.hxx
+++ b/vcl/inc/salgdi.hxx
@@ -20,15 +20,17 @@
 #ifndef INCLUDED_VCL_INC_SALGDI_HXX
 #define INCLUDED_VCL_INC_SALGDI_HXX
 
-#include "tools/solar.h"
-#include "vcl/dllapi.h"
-#include "vcl/salgtype.hxx"
-#include "osl/thread.hxx"
-#include "vcl/outdev.hxx"
-#include "vcl/salnativewidgets.hxx"
+#include <tools/solar.h>
+#include <osl/thread.hxx>
+
+#include <vcl/dllapi.h>
+#include <vcl/salgtype.hxx>
+#include <vcl/outdev.hxx>
+#include <vcl/salnativewidgets.hxx>
+#include <vcl/metric.hxx>
+
 #include "salglyphid.hxx"
 #include "sallayout.hxx"
-#include <impfont.hxx>
 
 #include <map>
 
@@ -231,8 +233,7 @@ public:
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel = 0 ) = 0;
 
     // get the repertoire of the current font
-    virtual const ImplFontCharMapPtr
-                            GetImplFontCharMap() const = 0;
+    virtual const FontCharMapPtr GetFontCharMap() const = 0;
 
     // get the layout capabilities of the current font
     virtual bool            GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const = 0;
diff --git a/vcl/inc/unx/salgdi.h b/vcl/inc/unx/salgdi.h
index 59af7ffba0f0..d34c5d1a9d27 100644
--- a/vcl/inc/unx/salgdi.h
+++ b/vcl/inc/unx/salgdi.h
@@ -24,8 +24,9 @@
 #include <postx.h>
 #include <tools/rational.hxx>
 
-#include "vcl/salgtype.hxx"
-#include "vcl/vclenum.hxx"
+#include <vcl/salgtype.hxx>
+#include <vcl/vclenum.hxx>
+#include <vcl/metric.hxx>
 
 #include "salgdi.hxx"
 #include "sallayout.hxx"
@@ -229,7 +230,7 @@ public:
     virtual void            SetTextColor( SalColor nSalColor ) SAL_OVERRIDE;
     virtual sal_uInt16          SetFont( FontSelectPattern*, int nFallbackLevel ) SAL_OVERRIDE;
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel ) SAL_OVERRIDE;
-    virtual const ImplFontCharMapPtr GetImplFontCharMap() const SAL_OVERRIDE;
+    virtual const FontCharMapPtr GetFontCharMap() const SAL_OVERRIDE;
     virtual bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const SAL_OVERRIDE;
     virtual void            GetDevFontList( PhysicalFontCollection* ) SAL_OVERRIDE;
     virtual void ClearDevFontCache() SAL_OVERRIDE;
diff --git a/vcl/inc/win/salgdi.h b/vcl/inc/win/salgdi.h
index ace973cde206..66c561830e49 100644
--- a/vcl/inc/win/salgdi.h
+++ b/vcl/inc/win/salgdi.h
@@ -94,7 +94,7 @@ public:
     const gr_face*          GraphiteFace() const;
 #endif
 
-    const ImplFontCharMapPtr GetImplFontCharMap() const;
+    FontCharMapPtr          GetFontCharMap() const;
     bool GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const;
     const Ucs2SIntMap* GetEncodingVector() const { return mpEncodingVector; }
     void SetEncodingVector( const Ucs2SIntMap* pNewVec ) const
@@ -116,7 +116,7 @@ private:
 #endif
     mutable bool                    mbHasArabicSupport;
     mutable bool                    mbFontCapabilitiesRead;
-    mutable ImplFontCharMapPtr      mpUnicodeMap;
+    mutable FontCharMapPtr          mpUnicodeMap;
     mutable const Ucs2SIntMap*      mpEncodingVector;
     mutable vcl::FontCapabilities   maFontCapabilities;
 
@@ -310,7 +310,7 @@ public:
     // get the current font's metrics
     virtual void            GetFontMetric( ImplFontMetricData*, int nFallbackLevel );
     // get the repertoire of the current font
-    virtual const ImplFontCharMapPtr GetImplFontCharMap() const;
+    virtual const FontCharMapPtr GetFontCharMap() const;
     // get the layout capabilities of the current font
     virtual bool GetFontCapabilities(vcl::FontCapabilities &rGetFontCapabilities) const;
     // graphics must fill supplied font list
diff --git a/vcl/qa/cppunit/fontcharmap.cxx b/vcl/qa/cppunit/fontcharmap.cxx
index 2c361580613d..2a88b66764b5 100644
--- a/vcl/qa/cppunit/fontcharmap.cxx
+++ b/vcl/qa/cppunit/fontcharmap.cxx
@@ -28,17 +28,19 @@ public:
 
 void VclFontCharMapTest::testDefaultFontCharMap()
 {
-    FontCharMap fcmap; // gets default map
+    FontCharMapPtr pfcmap( new FontCharMap() ); // gets default map
 
-    CPPUNIT_ASSERT( fcmap.IsDefaultMap() );
+    CPPUNIT_ASSERT( pfcmap->IsDefaultMap() );
 
-    sal_uInt32 nStartBMPPlane = fcmap.GetFirstChar();
-    sal_uInt32 nStartSupBMPPlane = fcmap.GetNextChar(0xD800);
-    sal_uInt32 nEndBMPPlane = fcmap.GetLastChar();
+    sal_uInt32 nStartBMPPlane = pfcmap->GetFirstChar();
+    sal_uInt32 nStartSupBMPPlane = pfcmap->GetNextChar(0xD800);
+    sal_uInt32 nEndBMPPlane = pfcmap->GetLastChar();
 
     CPPUNIT_ASSERT( nStartBMPPlane == 0x0020 );
     CPPUNIT_ASSERT( nStartSupBMPPlane == 0xE000 );
     CPPUNIT_ASSERT( nEndBMPPlane == 0xFFF0-1 );
+
+    pfcmap = 0;
 }
 
 CPPUNIT_TEST_SUITE_REGISTRATION(VclFontCharMapTest);
diff --git a/vcl/quartz/salgdi.cxx b/vcl/quartz/salgdi.cxx
index b5f5251f99e8..d33e570d564e 100644
--- a/vcl/quartz/salgdi.cxx
+++ b/vcl/quartz/salgdi.cxx
@@ -37,6 +37,9 @@
 
 #include "vcl/sysdata.hxx"
 #include "vcl/svapp.hxx"
+#include "vcl/metric.hxx"
+
+#include "impfont.hxx"
 
 #include "quartz/salgdi.h"
 #include "quartz/utils.h"
@@ -53,7 +56,6 @@
 #include "ctfonts.hxx"
 
 #include "fontsubset.hxx"
-#include "impfont.hxx"
 #include "sallayout.hxx"
 #include "sft.hxx"
 
@@ -93,37 +95,38 @@ sal_IntPtr CoreTextFontData::GetFontId() const
 
 static unsigned GetUShort( const unsigned char* p ){return((p[0]<<8)+p[1]);}
 
-const ImplFontCharMapPtr CoreTextFontData::GetImplFontCharMap() const
+const FontCharMapPtr CoreTextFontData::GetFontCharMap() const
 {
     // return the cached charmap
     if( mpCharMap )
         return mpCharMap;
 
     // set the default charmap
-    mpCharMap = ImplFontCharMap::GetDefaultMap();
+    FontCharMapPtr pCharMap( new FontCharMap() );
+    mpCharMap = pCharMap;
 
     // get the CMAP byte size
     // allocate a buffer for the CMAP raw data
     const int nBufSize = GetFontTable( "cmap", NULL );
-    DBG_ASSERT( (nBufSize > 0), "CoreTextFontData::GetImplFontCharMap : GetFontTable1 failed!\n");
+    DBG_ASSERT( (nBufSize > 0), "CoreTextFontData::GetFontCharMap : GetFontTable1 failed!\n");
     if( nBufSize <= 0 )
         return mpCharMap;
 
     // get the CMAP raw data
     ByteVector aBuffer( nBufSize );
     const int nRawLength = GetFontTable( "cmap", &aBuffer[0] );
-    DBG_ASSERT( (nRawLength > 0), "CoreTextFontData::GetImplFontCharMap : GetFontTable2 failed!\n");
+    DBG_ASSERT( (nRawLength > 0), "CoreTextFontData::GetFontCharMap : GetFontTable2 failed!\n");
     if( nRawLength <= 0 )
         return mpCharMap;
-    DBG_ASSERT( (nBufSize==nRawLength), "CoreTextFontData::GetImplFontCharMap : ByteCount mismatch!\n");
+    DBG_ASSERT( (nBufSize==nRawLength), "CoreTextFontData::GetFontCharMap : ByteCount mismatch!\n");
 
     // parse the CMAP
     CmapResult aCmapResult;
     if( ParseCMAP( &aBuffer[0], nRawLength, aCmapResult ) )
     {
-        ImplFontCharMapPtr pCharMap(new ImplFontCharMap( aCmapResult ) );
+        FontCharMapPtr pDefFontCharMap( new FontCharMap(aCmapResult) );
         // create the matching charmap
-        mpCharMap = pCharMap;
+        mpCharMap = pDefFontCharMap;
     }
 
     return mpCharMap;
@@ -485,12 +488,15 @@ SalLayout* AquaSalGraphics::GetTextLayout( ImplLayoutArgs& /*rArgs*/, int /*nFal
     return pSalLayout;
 }
 
-const ImplFontCharMapPtr AquaSalGraphics::GetImplFontCharMap() const
+const FontCharMapPtr AquaSalGraphics::GetFontCharMap() const
 {
     if( !mpFontData )
-        return ImplFontCharMap::GetDefaultMap();
+    {
+        FontCharMapPtr pFontCharMap( new FontCharMap() );
+        return pFontCharMap;
+    }
 
-    return mpFontData->GetImplFontCharMap();
+    return mpFontData->GetFontCharMap();
 }
 
 bool AquaSalGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
@@ -722,7 +728,7 @@ void AquaSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFontData, bool bV
                 free( (void*)pGlyphMetrics );
             }
 
-            ImplFontCharMapPtr pMap = mpFontData->GetImplFontCharMap();
+            FontCharMapPtr pMap = mpFontData->GetFontCharMap();
             DBG_ASSERT( pMap && pMap->GetCharCount(), "no charmap" );
 
             // get unicode<->glyph encoding
diff --git a/vcl/source/filter/wmf/wmfwr.cxx b/vcl/source/filter/wmf/wmfwr.cxx
index 2587823356f2..16493cec4005 100644
--- a/vcl/source/filter/wmf/wmfwr.cxx
+++ b/vcl/source/filter/wmf/wmfwr.cxx
@@ -945,15 +945,18 @@ void WMFWriter::SetAllAttr()
         pVirDev->SetFont(aSrcFont);
         if ( aDstFont.GetName() != aSrcFont.GetName() )
         {
-            FontCharMap aFontCharMap;
-            if ( pVirDev->GetFontCharMap( aFontCharMap ) )
+            FontCharMapPtr pFontCharMap;
+            if ( pVirDev->GetFontCharMap( pFontCharMap ) )
             {
-                if ( ( aFontCharMap.GetFirstChar() & 0xff00 ) == 0xf000 )
+                if ( ( pFontCharMap->GetFirstChar() & 0xff00 ) == 0xf000 )
                     aSrcFont.SetCharSet( RTL_TEXTENCODING_SYMBOL );
                 else if ( aSrcFont.GetCharSet() == RTL_TEXTENCODING_SYMBOL )
                     aSrcFont.SetCharSet( RTL_TEXTENCODING_MS_1252 );
             }
+
+            pFontCharMap = 0;
         }
+
         aDstFont = aSrcFont;
         CreateSelectDeleteFont(aDstFont);
     }
diff --git a/vcl/source/gdi/impfont.cxx b/vcl/source/gdi/impfont.cxx
index 1bd7dcd0e4cb..223e9e1fd83b 100644
--- a/vcl/source/gdi/impfont.cxx
+++ b/vcl/source/gdi/impfont.cxx
@@ -33,6 +33,19 @@ CmapResult::CmapResult( bool bSymbolic,
 ,   mbRecoded( false)
 {}
 
+static ImplFontCharMapPtr pDefaultImplFontCharMap;
+static const sal_UCS4 aDefaultUnicodeRanges[] = {0x0020,0xD800, 0xE000,0xFFF0};
+static const sal_UCS4 aDefaultSymbolRanges[] = {0x0020,0x0100, 0xF020,0xF100};
+
+ImplFontCharMap::~ImplFontCharMap()
+{
+    if( isDefaultMap() )
+        return;
+    delete[] mpRangeCodes;
+    delete[] mpStartGlyphs;
+    delete[] mpGlyphIds;
+}
+
 ImplFontCharMap::ImplFontCharMap( const CmapResult& rCR )
 :   mpRangeCodes( rCR.mpRangeCodes )
 ,   mpStartGlyphs( rCR.mpStartGlyphs )
@@ -50,26 +63,7 @@ ImplFontCharMap::ImplFontCharMap( const CmapResult& rCR )
     }
 }
 
-static ImplFontCharMapPtr pDefaultImplFontCharMap;
-static const sal_UCS4 aDefaultUnicodeRanges[] = {0x0020,0xD800, 0xE000,0xFFF0};
-static const sal_UCS4 aDefaultSymbolRanges[] = {0x0020,0x0100, 0xF020,0xF100};
-
-bool ImplFontCharMap::IsDefaultMap() const
-{
-    const bool bIsDefault = (mpRangeCodes == aDefaultUnicodeRanges) || (mpRangeCodes == aDefaultSymbolRanges);
-    return bIsDefault;
-}
-
-ImplFontCharMap::~ImplFontCharMap()
-{
-    if( IsDefaultMap() )
-        return;
-    delete[] mpRangeCodes;
-    delete[] mpStartGlyphs;
-    delete[] mpGlyphIds;
-}
-
-ImplFontCharMapPtr ImplFontCharMap::GetDefaultMap( bool bSymbols)
+ImplFontCharMapPtr ImplFontCharMap::getDefaultMap( bool bSymbols )
 {
     const sal_UCS4* pRangeCodes = aDefaultUnicodeRanges;
     int nCodesCount = sizeof(aDefaultUnicodeRanges) / sizeof(*pRangeCodes);
@@ -85,173 +79,10 @@ ImplFontCharMapPtr ImplFontCharMap::GetDefaultMap( bool bSymbols)
     return pDefaultImplFontCharMap;
 }
 
-int ImplFontCharMap::ImplFindRangeIndex( sal_UCS4 cChar ) const
-{
-    int nLower = 0;
-    int nMid   = mnRangeCount;
-    int nUpper = 2 * mnRangeCount - 1;
-    while( nLower < nUpper )
-    {
-        if( cChar >= mpRangeCodes[ nMid ] )
-            nLower = nMid;
-        else
-            nUpper = nMid - 1;
-        nMid = (nLower + nUpper + 1) / 2;
-    }
-
-    return nMid;
-}
-
-bool ImplFontCharMap::HasChar( sal_UCS4 cChar ) const
-{
-    bool bHasChar = false;
-
-    if( mpStartGlyphs  == NULL ) { // only the char-ranges are known
-        const int nRange = ImplFindRangeIndex( cChar );
-        if( nRange==0 && cChar<mpRangeCodes[0] )
-            return false;
-        bHasChar = ((nRange & 1) == 0); // inside a range
-    } else { // glyph mapping is available
-        const int nGlyphIndex = GetGlyphIndex( cChar );
-        bHasChar = (nGlyphIndex != 0); // not the notdef-glyph
-    }
-
-    return bHasChar;
-}
-
-int ImplFontCharMap::GetGlyphIndex( sal_UCS4 cChar ) const
-{
-    // return -1 if the object doesn't know the glyph ids
-    if( !mpStartGlyphs )
-        return -1;
-
-    // return 0 if the unicode doesn't have a matching glyph
-    int nRange = ImplFindRangeIndex( cChar );
-    // check that we are inside any range
-    if( (nRange == 0) && (cChar < mpRangeCodes[0]) ) {
-        // symbol aliasing gives symbol fonts a second chance
-        const bool bSymbolic = cChar <= 0xFF && (mpRangeCodes[0]>=0xF000) && (mpRangeCodes[1]<=0xF0FF);
-        if( !bSymbolic )
-            return 0;
-        // check for symbol aliasing (U+F0xx -> U+00xx)
-        cChar |= 0xF000;
-        nRange = ImplFindRangeIndex( cChar );
-        if( (nRange == 0) && (cChar < mpRangeCodes[0]) ) {
-            return 0;
-        }
-    }
-    // check that we are inside a range
-    if( (nRange & 1) != 0 )
-        return 0;
-
-    // get glyph index directly or indirectly
-    int nGlyphIndex = cChar - mpRangeCodes[ nRange ];
-    const int nStartIndex = mpStartGlyphs[ nRange/2 ];
-    if( nStartIndex >= 0 ) {
-        // the glyph index can be calculated
-        nGlyphIndex += nStartIndex;
-    } else {
-        // the glyphid array has the glyph index
-        nGlyphIndex = mpGlyphIds[ nGlyphIndex - nStartIndex];
-    }
-
-    return nGlyphIndex;
-}
-
-// returns the number of chars supported by the font, which
-// are inside the unicode range from cMin to cMax (inclusive)
-int ImplFontCharMap::CountCharsInRange( sal_UCS4 cMin, sal_UCS4 cMax ) const
-{
-    int nCount = 0;
-
-    // find and adjust range and char count for cMin
-    int nRangeMin = ImplFindRangeIndex( cMin );
-    if( nRangeMin & 1 )
-        ++nRangeMin;
-    else if( cMin > mpRangeCodes[ nRangeMin ] )
-        nCount -= cMin - mpRangeCodes[ nRangeMin ];
-
-    // find and adjust range and char count for cMax
-    int nRangeMax = ImplFindRangeIndex( cMax );
-    if( nRangeMax & 1 )
-        --nRangeMax;
-    else
-        nCount -= mpRangeCodes[ nRangeMax+1 ] - cMax - 1;
-
-    // count chars in complete ranges between cMin and cMax
-    for( int i = nRangeMin; i <= nRangeMax; i+=2 )
-        nCount += mpRangeCodes[i+1] - mpRangeCodes[i];
-
-    return nCount;
-}
-
-
-sal_UCS4 ImplFontCharMap::GetLastChar() const
-{
-    return (mpRangeCodes[ 2*mnRangeCount-1 ] - 1);
-}
-
-sal_UCS4 ImplFontCharMap::GetNextChar( sal_UCS4 cChar ) const
-{
-    if( cChar < GetFirstChar() )
-        return GetFirstChar();
-    if( cChar >= GetLastChar() )
-        return GetLastChar();
-
-    int nRange = ImplFindRangeIndex( cChar + 1 );
-    if( nRange & 1 )                       // outside of range?
-        return mpRangeCodes[ nRange + 1 ]; // => first in next range
-    return (cChar + 1);
-}
-
-sal_UCS4 ImplFontCharMap::GetPrevChar( sal_UCS4 cChar ) const
-{
-    if( cChar <= GetFirstChar() )
-        return GetFirstChar();
-    if( cChar > GetLastChar() )
-        return GetLastChar();
-
-    int nRange = ImplFindRangeIndex( cChar - 1 );
-    if( nRange & 1 )                            // outside a range?
-        return (mpRangeCodes[ nRange ] - 1);    // => last in prev range
-    return (cChar - 1);
-}
-
-int ImplFontCharMap::GetIndexFromChar( sal_UCS4 cChar ) const
-{
-    // TODO: improve linear walk?
-    int nCharIndex = 0;
-    const sal_UCS4* pRange = &mpRangeCodes[0];
-    for( int i = 0; i < mnRangeCount; ++i )
-    {
-        sal_UCS4 cFirst = *(pRange++);
-        sal_UCS4 cLast  = *(pRange++);
-        if( cChar >= cLast )
-            nCharIndex += cLast - cFirst;
-        else if( cChar >= cFirst )
-            return nCharIndex + (cChar - cFirst);
-        else
-            break;
-    }
-
-    return -1;
-}
-
-sal_UCS4 ImplFontCharMap::GetCharFromIndex( int nCharIndex ) const
+bool ImplFontCharMap::isDefaultMap() const
 {
-    // TODO: improve linear walk?
-    const sal_UCS4* pRange = &mpRangeCodes[0];
-    for( int i = 0; i < mnRangeCount; ++i )
-    {
-        sal_UCS4 cFirst = *(pRange++);
-        sal_UCS4 cLast  = *(pRange++);
-        nCharIndex -= cLast - cFirst;
-        if( nCharIndex < 0 )
-            return (cLast + nCharIndex);
-    }
-
-    // we can only get here with an out-of-bounds charindex
-    return mpRangeCodes[0];
+    const bool bIsDefault = (mpRangeCodes == aDefaultUnicodeRanges) || (mpRangeCodes == aDefaultSymbolRanges);
+    return bIsDefault;
 }
 
 static unsigned GetUInt( const unsigned char* p ) { return((p[0]<<24)+(p[1]<<16)+(p[2]<<8)+p[3]);}
@@ -543,74 +374,218 @@ bool ParseCMAP( const unsigned char* pCmap, int nLength, CmapResult& rResult )
 }
 
 FontCharMap::FontCharMap()
-:   mpImplFontCharMap( ImplFontCharMap::GetDefaultMap() )
+:   mpImplFontCharMap( ImplFontCharMap::getDefaultMap() )
+{}
+
+FontCharMap::FontCharMap( ImplFontCharMapPtr pIFCMap )
+:   mpImplFontCharMap( pIFCMap )
 {}
 
+FontCharMap::FontCharMap( const CmapResult& rCR )
+{
+    ImplFontCharMapPtr pImplFontCharMap( new ImplFontCharMap(rCR) );
+    mpImplFontCharMap = pImplFontCharMap;
+
+    const sal_UCS4* pRangePtr = mpImplFontCharMap->mpRangeCodes;
+    for( int i = mpImplFontCharMap->mnRangeCount; --i >= 0; pRangePtr += 2 )
+    {
+        sal_UCS4 cFirst = pRangePtr[0];
+        sal_UCS4 cLast  = pRangePtr[1];
+        mpImplFontCharMap->mnCharCount += cLast - cFirst;
+    }
+}
+
 FontCharMap::~FontCharMap()
 {
     mpImplFontCharMap = 0;
 }
 
-int FontCharMap::GetCharCount() const
+FontCharMapPtr FontCharMap::GetDefaultMap( bool bSymbol )
 {
-    return mpImplFontCharMap->GetCharCount();
+    FontCharMapPtr pFontCharMap( new FontCharMap( ImplFontCharMap::getDefaultMap( bSymbol ) ) );
+    return pFontCharMap;
 }
 
-int FontCharMap::CountCharsInRange( sal_UCS4 cMin, sal_UCS4 cMax ) const
+bool FontCharMap::IsDefaultMap() const
 {
-    return mpImplFontCharMap->CountCharsInRange( cMin, cMax );
+    return mpImplFontCharMap->isDefaultMap();
 }
 
-void FontCharMap::Reset( const ImplFontCharMapPtr pNewMap )
+int FontCharMap::GetCharCount() const
 {
-    if( !pNewMap )
-    {
-        mpImplFontCharMap = ImplFontCharMap::GetDefaultMap();
-    }
-    else if( pNewMap != mpImplFontCharMap )
-    {
-        mpImplFontCharMap = pNewMap;
-    }
+    return GetCharCount();
 }
 
-bool FontCharMap::IsDefaultMap() const
+int FontCharMap::CountCharsInRange( sal_UCS4 cMin, sal_UCS4 cMax ) const
 {
-    return mpImplFontCharMap->IsDefaultMap();
+    int nCount = 0;
+
+    // find and adjust range and char count for cMin
+    int nRangeMin = findRangeIndex( cMin );
+    if( nRangeMin & 1 )
+        ++nRangeMin;
+    else if( cMin > mpImplFontCharMap->mpRangeCodes[ nRangeMin ] )
+        nCount -= cMin - mpImplFontCharMap->mpRangeCodes[ nRangeMin ];
+
+    // find and adjust range and char count for cMax
+    int nRangeMax = findRangeIndex( cMax );
+    if( nRangeMax & 1 )
+        --nRangeMax;
+    else
+        nCount -= mpImplFontCharMap->mpRangeCodes[ nRangeMax+1 ] - cMax - 1;
+
+    // count chars in complete ranges between cMin and cMax
+    for( int i = nRangeMin; i <= nRangeMax; i+=2 )
+        nCount += mpImplFontCharMap->mpRangeCodes[i+1] - mpImplFontCharMap->mpRangeCodes[i];
+
+    return nCount;
 }
 
 bool FontCharMap::HasChar( sal_UCS4 cChar ) const
 {
-    return mpImplFontCharMap->HasChar( cChar );
+    bool bHasChar = false;
+
+    if( mpImplFontCharMap->mpStartGlyphs  == NULL ) { // only the char-ranges are known
+        const int nRange = findRangeIndex( cChar );
+        if( nRange==0 && cChar < mpImplFontCharMap->mpRangeCodes[0] )
+            return false;
+        bHasChar = ((nRange & 1) == 0); // inside a range
+    } else { // glyph mapping is available
+        const int nGlyphIndex = GetGlyphIndex( cChar );
+        bHasChar = (nGlyphIndex != 0); // not the notdef-glyph
+    }
+
+    return bHasChar;
 }
 
 sal_UCS4 FontCharMap::GetFirstChar() const
 {
-    return mpImplFontCharMap->GetFirstChar();
+    return mpImplFontCharMap->mpRangeCodes[0];
 }
 
 sal_UCS4 FontCharMap::GetLastChar() const
 {
-    return mpImplFontCharMap->GetLastChar();
+    return (mpImplFontCharMap->mpRangeCodes[ 2*mpImplFontCharMap->mnRangeCount-1 ] - 1);
 }
 
 sal_UCS4 FontCharMap::GetNextChar( sal_UCS4 cChar ) const
 {
-    return mpImplFontCharMap->GetNextChar( cChar );
+    if( cChar < GetFirstChar() )
+        return GetFirstChar();
+    if( cChar >= GetLastChar() )
+        return GetLastChar();
+
+    int nRange = findRangeIndex( cChar + 1 );
+    if( nRange & 1 )                       // outside of range?
+        return mpImplFontCharMap->mpRangeCodes[ nRange + 1 ]; // => first in next range
+    return (cChar + 1);
 }
 
 sal_UCS4 FontCharMap::GetPrevChar( sal_UCS4 cChar ) const
 {
-    return mpImplFontCharMap->GetPrevChar( cChar );
+    if( cChar <= GetFirstChar() )
+        return GetFirstChar();
+    if( cChar > GetLastChar() )
+        return GetLastChar();
+
+    int nRange = findRangeIndex( cChar - 1 );
+    if( nRange & 1 )                            // outside a range?
+        return (mpImplFontCharMap->mpRangeCodes[ nRange ] - 1);    // => last in prev range
+    return (cChar - 1);
 }
 
 int FontCharMap::GetIndexFromChar( sal_UCS4 cChar ) const
 {
-    return mpImplFontCharMap->GetIndexFromChar( cChar );
+    // TODO: improve linear walk?
+    int nCharIndex = 0;
+    const sal_UCS4* pRange = &mpImplFontCharMap->mpRangeCodes[0];
+    for( int i = 0; i < mpImplFontCharMap->mnRangeCount; ++i )
+    {
+        sal_UCS4 cFirst = *(pRange++);
+        sal_UCS4 cLast  = *(pRange++);
+        if( cChar >= cLast )
+            nCharIndex += cLast - cFirst;
+        else if( cChar >= cFirst )
+            return nCharIndex + (cChar - cFirst);
+        else
+            break;
+    }
+
+    return -1;
 }
 
 sal_UCS4 FontCharMap::GetCharFromIndex( int nIndex ) const
 {
-    return mpImplFontCharMap->GetCharFromIndex( nIndex );
+    // TODO: improve linear walk?
+    const sal_UCS4* pRange = &mpImplFontCharMap->mpRangeCodes[0];
+    for( int i = 0; i < mpImplFontCharMap->mnRangeCount; ++i )
+    {
+        sal_UCS4 cFirst = *(pRange++);
+        sal_UCS4 cLast  = *(pRange++);
+        nIndex -= cLast - cFirst;
+        if( nIndex < 0 )
+            return (cLast + nIndex);
+    }
+
+    // we can only get here with an out-of-bounds charindex
+    return mpImplFontCharMap->mpRangeCodes[0];
+}
+
+int FontCharMap::findRangeIndex( sal_UCS4 cChar ) const
+{
+    int nLower = 0;
+    int nMid   = mpImplFontCharMap->mnRangeCount;
+    int nUpper = 2 * mpImplFontCharMap->mnRangeCount - 1;
+    while( nLower < nUpper )
+    {
+        if( cChar >= mpImplFontCharMap->mpRangeCodes[ nMid ] )
+            nLower = nMid;
+        else
+            nUpper = nMid - 1;
+        nMid = (nLower + nUpper + 1) / 2;
+    }
+
+    return nMid;
+}
+
+int FontCharMap::GetGlyphIndex( sal_UCS4 cChar ) const
+{
+    // return -1 if the object doesn't know the glyph ids
+    if( !mpImplFontCharMap->mpStartGlyphs )
+        return -1;
+
+    // return 0 if the unicode doesn't have a matching glyph
+    int nRange = findRangeIndex( cChar );
+    // check that we are inside any range
+    if( (nRange == 0) && (cChar < mpImplFontCharMap->mpRangeCodes[0]) ) {
+        // symbol aliasing gives symbol fonts a second chance
+        const bool bSymbolic = cChar <= 0xFF && (mpImplFontCharMap->mpRangeCodes[0]>=0xF000) &&
+                                                (mpImplFontCharMap->mpRangeCodes[1]<=0xF0FF);
+        if( !bSymbolic )
+            return 0;
+        // check for symbol aliasing (U+F0xx -> U+00xx)
+        cChar |= 0xF000;
+        nRange = findRangeIndex( cChar );
+        if( (nRange == 0) && (cChar < mpImplFontCharMap->mpRangeCodes[0]) ) {
+            return 0;
+        }
+    }
+    // check that we are inside a range
+    if( (nRange & 1) != 0 )
+        return 0;
+
+    // get glyph index directly or indirectly
+    int nGlyphIndex = cChar - mpImplFontCharMap->mpRangeCodes[ nRange ];
+    const int nStartIndex = mpImplFontCharMap->mpStartGlyphs[ nRange/2 ];
+    if( nStartIndex >= 0 ) {
+        // the glyph index can be calculated
+        nGlyphIndex += nStartIndex;
+    } else {
+        // the glyphid array has the glyph index
+        nGlyphIndex = mpImplFontCharMap->mpGlyphIds[ nGlyphIndex - nStartIndex];
+    }
+
+    return nGlyphIndex;
 }
 
 // on some systems we have to get the font attributes from the name table
diff --git a/vcl/source/outdev/font.cxx b/vcl/source/outdev/font.cxx
index 0931f79e369e..f6af60cc6476 100644
--- a/vcl/source/outdev/font.cxx
+++ b/vcl/source/outdev/font.cxx
@@ -216,10 +216,8 @@ FontMetric OutputDevice::GetFontMetric( const vcl::Font& rFont ) const
     return aMetric;
 }
 
-bool OutputDevice::GetFontCharMap( FontCharMap& rFontCharMap ) const
+bool OutputDevice::GetFontCharMap( FontCharMapPtr& rFontCharMap ) const
 {
-    rFontCharMap.Reset();
-
     // we need a graphics
     if( !mpGraphics && !AcquireGraphics() )
         return false;
@@ -231,10 +229,16 @@ bool OutputDevice::GetFontCharMap( FontCharMap& rFontCharMap ) const
     if( !mpFontEntry )
         return false;
 
-    const ImplFontCharMapPtr pNewMap = mpGraphics->GetImplFontCharMap();
-    rFontCharMap.Reset( pNewMap );
+    FontCharMapPtr pFontCharMap ( mpGraphics->GetFontCharMap() );
+    if (!pFontCharMap)
+    {
+        FontCharMapPtr pDefaultMap( new FontCharMap() );
+        rFontCharMap = pDefaultMap;
+    }
+    else
+        rFontCharMap = pFontCharMap;
 
-    if( rFontCharMap.IsDefaultMap() )
+    if( rFontCharMap->IsDefaultMap() )
         return false;
     return true;
 }
@@ -2160,8 +2164,8 @@ sal_Int32 OutputDevice::HasGlyphs( const vcl::Font& rTempFont, const OUString& r
     // to get the map temporarily set font
     const vcl::Font aOrigFont = GetFont();
     const_cast<OutputDevice&>(*this).SetFont( rTempFont );
-    FontCharMap aFontCharMap;
-    bool bRet = GetFontCharMap( aFontCharMap );
+    FontCharMapPtr pFontCharMap ( new FontCharMap() );
+    bool bRet = GetFontCharMap( pFontCharMap );
     const_cast<OutputDevice&>(*this).SetFont( aOrigFont );
 
     // if fontmap is unknown assume it doesn't have the glyphs
@@ -2169,9 +2173,11 @@ sal_Int32 OutputDevice::HasGlyphs( const vcl::Font& rTempFont, const OUString& r
         return nIndex;
 
     for( sal_Int32 i = nIndex; nIndex < nEnd; ++i, ++nIndex )
-        if( ! aFontCharMap.HasChar( rStr[i] ) )
+        if( ! pFontCharMap->HasChar( rStr[i] ) )
             return nIndex;
 
+    pFontCharMap = 0;
+
     return -1;
 }
 
diff --git a/vcl/unx/generic/gdi/salgdi3.cxx b/vcl/unx/generic/gdi/salgdi3.cxx
index f028597fe1da..3cd42cdd09a9 100644
--- a/vcl/unx/generic/gdi/salgdi3.cxx
+++ b/vcl/unx/generic/gdi/salgdi3.cxx
@@ -43,12 +43,13 @@
 #include <vcl/jobdata.hxx>
 #include <vcl/printerinfomanager.hxx>
 #include <vcl/svapp.hxx>
+#include <vcl/metric.hxx>
 
 #include "fontmanager.hxx"
+#include "impfont.hxx"
 #include "gcach_xpeer.hxx"
 #include "generic/genpspgraphics.h"
 #include "generic/printergfx.hxx"
-#include "impfont.hxx"
 #include "outdev.h"
 #include "PhysicalFontCollection.hxx"
 #include "PhysicalFontFace.hxx"
@@ -431,13 +432,13 @@ void X11SalGraphics::DrawServerFontLayout( const ServerFontLayout& rLayout )
     cairo_destroy(cr);
 }
 
-const ImplFontCharMapPtr X11SalGraphics::GetImplFontCharMap() const
+const FontCharMapPtr X11SalGraphics::GetFontCharMap() const
 {
     if( !mpServerFont[0] )
         return NULL;
 
-    const ImplFontCharMapPtr pIFCMap = mpServerFont[0]->GetImplFontCharMap();
-    return pIFCMap;
+    const FontCharMapPtr pFCMap = mpServerFont[0]->GetFontCharMap();
+    return pFCMap;
 }
 
 bool X11SalGraphics::GetFontCapabilities(vcl::FontCapabilities &rGetImplFontCapabilities) const
diff --git a/vcl/win/source/gdi/salgdi3.cxx b/vcl/win/source/gdi/salgdi3.cxx
index cb5be79ee1b6..f3933d960ab0 100644
--- a/vcl/win/source/gdi/salgdi3.cxx
+++ b/vcl/win/source/gdi/salgdi3.cxx
@@ -40,6 +40,7 @@
 #include <unotools/fontcfg.hxx>
 #include <vcl/settings.hxx>
 #include <vcl/sysdata.hxx>
+#include <vcl/metric.hxx>
 
 #include "fontsubset.hxx"
 #include "outdev.h"
@@ -430,7 +431,7 @@ public:
     bool FindFontSubstitute( FontSelectPattern&, OUString& rMissingChars ) const;
 private:
     HDC mhDC;
-    bool HasMissingChars( const PhysicalFontFace*, const OUString& rMissingChars ) const;
+    bool HasMissingChars( PhysicalFontFace*, const OUString& rMissingChars ) const;
 };
 
 inline WinGlyphFallbackSubstititution::WinGlyphFallbackSubstititution( HDC hDC )
@@ -441,10 +442,10 @@ void ImplGetLogFontFromFontSelect( HDC, const FontSelectPattern*,
     LOGFONTW&, bool /*bTestVerticalAvail*/ );
 
 // does a font face hold the given missing characters?
-bool WinGlyphFallbackSubstititution::HasMissingChars( const PhysicalFontFace* pFace, const OUString& rMissingChars ) const
+bool WinGlyphFallbackSubstititution::HasMissingChars( PhysicalFontFace* pFace, const OUString& rMissingChars ) const
 {
-    const ImplWinFontData* pWinFont = static_cast<const ImplWinFontData*>(pFace);
-    ImplFontCharMapPtr pCharMap = pWinFont->GetImplFontCharMap();
+    ImplWinFontData* pWinFont = static_cast< ImplWinFontData* >(pFace);
+    FontCharMapPtr pCharMap = pWinFont->GetFontCharMap();
     if( !pCharMap )
     {
         // construct a Size structure as the parameter of constructor of class FontSelectPattern
@@ -468,7 +469,7 @@ bool WinGlyphFallbackSubstititution::HasMissingChars( const PhysicalFontFace* pF
         ::DeleteFont( hNewFont );
 
         // get the new charmap
-        pCharMap = pWinFont->GetImplFontCharMap();
+        pCharMap = pWinFont->GetFontCharMap();
     }
 
     // avoid fonts with unknown CMAP subtables for glyph fallback
@@ -531,10 +532,10 @@ bool WinGlyphFallbackSubstititution::FindFontSubstitute( FontSelectPattern& rFon
     // first level fallback:
     // try use the locale specific default fonts defined in VCL.xcu
     const PhysicalFontCollection* pFontCollection = ImplGetSVData()->maGDIData.mpScreenFontList;
-    /*const*/ PhysicalFontFamily* pFontFamily = findDevFontListByLocale(*pFontCollection, aLanguageTag);
+    PhysicalFontFamily* pFontFamily = findDevFontListByLocale(*pFontCollection, aLanguageTag);
     if( pFontFamily )
     {
-        const PhysicalFontFace* pFace = pFontFamily->FindBestFontFace( rFontSelData );
+        PhysicalFontFace* pFace = pFontFamily->FindBestFontFace( rFontSelData );
         if( HasMissingChars( pFace, rMissingChars ) )
         {
             rFontSelData.maSearchName = pFontFamily->GetSearchName();
@@ -550,7 +551,7 @@ bool WinGlyphFallbackSubstititution::FindFontSubstitute( FontSelectPattern& rFon
                                                          rFontSelData.maSearchName );
     if( pFontFamily )
     {
-        const PhysicalFontFace* pFace = pFontFamily->FindBestFontFace( rFontSelData );
+        PhysicalFontFace* pFace = pFontFamily->FindBestFontFace( rFontSelData );
         if( HasMissingChars( pFace, rMissingChars ) )
         {
             rFontSelData.maSearchName = pFontFamily->GetSearchName();
@@ -569,7 +570,7 @@ bool WinGlyphFallbackSubstititution::FindFontSubstitute( FontSelectPattern& rFon
     bool bFound = false;
     for( int i = 0; i < nTestFontCount; ++i )
     {
-        const PhysicalFontFace* pFace = pTestFontList->Get( i );
+        PhysicalFontFace* pFace = pTestFontList->Get( i );
         bFound = HasMissingChars( pFace, rMissingChars );
         if( !bFound )
             continue;
@@ -1224,7 +1225,7 @@ bool ImplWinFontData::IsGSUBstituted( sal_UCS4 cChar ) const
     return( maGsubTable.find( cChar ) != maGsubTable.end() );
 }
 
-const ImplFontCharMapPtr ImplWinFontData::GetImplFontCharMap() const
+FontCharMapPtr ImplWinFontData::GetFontCharMap() const
 {
     if( !mpUnicodeMap )
         return NULL;
@@ -1299,13 +1300,15 @@ void ImplWinFontData::ReadCmapTable( HDC hDC ) const
         aResult.mbSymbolic = bIsSymbolFont;
         if( aResult.mnRangeCount > 0 )
         {
-            ImplFontCharMapPtr pUnicodeMap( new ImplFontCharMap( aResult ) );
+            FontCharMapPtr pUnicodeMap(new FontCharMap(aResult));
             mpUnicodeMap = pUnicodeMap;
         }
     }
 
     if( !mpUnicodeMap )
-        mpUnicodeMap = ImplFontCharMap::GetDefaultMap( bIsSymbolFont );
+    {
+        mpUnicodeMap = FontCharMap::GetDefaultMap( bIsSymbolFont );
+    }
 }
 
 void ImplWinFontData::GetFontCapabilities( HDC hDC ) const
@@ -1699,11 +1702,14 @@ sal_uLong WinSalGraphics::GetKernPairs()
     return mnFontKernPairCount;
 }
 
-const ImplFontCharMapPtr WinSalGraphics::GetImplFontCharMap() const
+const FontCharMapPtr WinSalGraphics::GetFontCharMap() const
 {
     if( !mpWinFontData[0] )
-        return ImplFontCharMap::GetDefaultMap();
-    return mpWinFontData[0]->GetImplFontCharMap();
+    {
+        FontCharMapPtr pDefFontCharMap( new FontCharMap() );
+        return pDefFontCharMap;
+    }
+    return mpWinFontData[0]->GetFontCharMap();
 }
 
 bool WinSalGraphics::GetFontCapabilities(vcl::FontCapabilities &rFontCapabilities) const
@@ -2482,7 +2488,7 @@ bool WinSalGraphics::CreateFontSubset( const OUString& rToFile,
     if( aRawCffData.get() )
     {
         pWinFontData->UpdateFromHDC( getHDC() );
-        ImplFontCharMapPtr pCharMap = pWinFontData->GetImplFontCharMap();
+        FontCharMapPtr pCharMap = pWinFontData->GetFontCharMap();
 
         sal_GlyphId aRealGlyphIds[ 256 ];
         for( int i = 0; i < nGlyphCount; ++i )
@@ -2732,7 +2738,7 @@ void WinSalGraphics::GetGlyphWidths( const PhysicalFontFace* pFont,
                 rUnicodeEnc.clear();
             }
             const ImplWinFontData* pWinFont = static_cast<const ImplWinFontData*>(pFont);
-            ImplFontCharMapPtr pMap = pWinFont->GetImplFontCharMap();
+            FontCharMapPtr pMap = pWinFont->GetFontCharMap();
             DBG_ASSERT( pMap && pMap->GetCharCount(), "no map" );
 
             int nCharCount = pMap->GetCharCount();