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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
#ifndef _SV_GCACHFTYP_HXX
#define _SV_GCACHFTYP_HXX
#include "generic/glyphcache.hxx"
#include <rtl/textcvt.h>
#ifdef ENABLE_GRAPHITE
class GraphiteFaceWrapper;
#endif
// -----------------------------------------------------------------------
// FtFontFile has the responsibility that a font file is only mapped once.
// (#86621#) the old directly ft-managed solution caused it to be mapped
// in up to nTTC*nSizes*nOrientation*nSynthetic times
class FtFontFile
{
public:
static FtFontFile* FindFontFile( const ::rtl::OString& rNativeFileName );
bool Map();
void Unmap();
const unsigned char* GetBuffer() const { return mpFileMap; }
int GetFileSize() const { return mnFileSize; }
const ::rtl::OString* GetFileName() const { return &maNativeFileName; }
int GetLangBoost() const { return mnLangBoost; }
private:
FtFontFile( const ::rtl::OString& rNativeFileName );
const ::rtl::OString maNativeFileName;
const unsigned char* mpFileMap;
int mnFileSize;
int mnRefCount;
int mnLangBoost;
};
// -----------------------------------------------------------------------
// FtFontInfo corresponds to an unscaled font face
class FtFontInfo
{
public:
FtFontInfo( const ImplDevFontAttributes&,
const ::rtl::OString& rNativeFileName,
int nFaceNum, sal_IntPtr nFontId, int nSynthetic,
const ExtraKernInfo* );
~FtFontInfo();
const unsigned char* GetTable( const char*, sal_uLong* pLength=0 ) const;
FT_FaceRec_* GetFaceFT();
#ifdef ENABLE_GRAPHITE
GraphiteFaceWrapper* GetGraphiteFace();
#endif
void ReleaseFaceFT( FT_FaceRec_* );
const ::rtl::OString* GetFontFileName() const { return mpFontFile->GetFileName(); }
int GetFaceNum() const { return mnFaceNum; }
int GetSynthetic() const { return mnSynthetic; }
sal_IntPtr GetFontId() const { return mnFontId; }
bool IsSymbolFont() const { return maDevFontAttributes.IsSymbolFont(); }
const ImplFontAttributes& GetFontAttributes() const { return maDevFontAttributes; }
void AnnounceFont( ImplDevFontList* );
int GetGlyphIndex( sal_UCS4 cChar ) const;
void CacheGlyphIndex( sal_UCS4 cChar, int nGI ) const;
bool GetFontCodeRanges( CmapResult& ) const;
const ImplFontCharMap* GetImplFontCharMap( void );
bool HasExtraKerning() const;
int GetExtraKernPairs( ImplKernPairData** ) const;
int GetExtraGlyphKernValue( int nLeftGlyph, int nRightGlyph ) const;
private:
FT_FaceRec_* maFaceFT;
FtFontFile* mpFontFile;
const int mnFaceNum;
int mnRefCount;
const int mnSynthetic;
#ifdef ENABLE_GRAPHITE
bool mbCheckedGraphite;
GraphiteFaceWrapper * mpGraphiteFace;
#endif
sal_IntPtr mnFontId;
ImplDevFontAttributes maDevFontAttributes;
const ImplFontCharMap* 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
typedef ::boost::unordered_map<int,int> Int2IntMap;
mutable Int2IntMap* mpChar2Glyph;
mutable Int2IntMap* mpGlyph2Char;
void InitHashes() const;
const ExtraKernInfo* mpExtraKernInfo;
};
// these two inlines are very important for performance
inline int FtFontInfo::GetGlyphIndex( sal_UCS4 cChar ) const
{
if( !mpChar2Glyph )
return -1;
Int2IntMap::const_iterator it = mpChar2Glyph->find( cChar );
if( it == mpChar2Glyph->end() )
return -1;
return it->second;
}
inline void FtFontInfo::CacheGlyphIndex( sal_UCS4 cChar, int nIndex ) const
{
if( !mpChar2Glyph )
InitHashes();
(*mpChar2Glyph)[ cChar ] = nIndex;
(*mpGlyph2Char)[ nIndex ] = cChar;
}
// -----------------------------------------------------------------------
class FreetypeManager
{
public:
FreetypeManager();
~FreetypeManager();
void AddFontFile( const rtl::OString& rNormalizedName,
int nFaceNum, sal_IntPtr nFontId, const ImplDevFontAttributes&,
const ExtraKernInfo* );
void AnnounceFonts( ImplDevFontList* ) const;
void ClearFontList();
ServerFont* CreateFont( const FontSelectPattern& );
private:
typedef ::boost::unordered_map<sal_IntPtr,FtFontInfo*> FontList;
FontList maFontList;
sal_IntPtr mnMaxFontId;
};
// -----------------------------------------------------------------------
class ImplFTSFontData : public PhysicalFontFace
{
private:
FtFontInfo* mpFtFontInfo;
enum { IFTSFONT_MAGIC = 0x1F150A1C };
public:
ImplFTSFontData( FtFontInfo*, const ImplDevFontAttributes& );
FtFontInfo* GetFtFontInfo() const { return mpFtFontInfo; }
virtual ImplFontEntry* CreateFontInstance( FontSelectPattern& ) const;
virtual PhysicalFontFace* Clone() const { return new ImplFTSFontData( *this ); }
virtual sal_IntPtr GetFontId() const { return mpFtFontInfo->GetFontId(); }
static bool CheckFontData( const PhysicalFontFace& r ) { return r.CheckMagic( IFTSFONT_MAGIC ); }
};
// -----------------------------------------------------------------------
#endif // _SV_GCACHFTYP_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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