ttcr.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
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 */

#ifndef INCLUDED_VCL_SOURCE_FONTSUBSET_TTCR_HXX
#define INCLUDED_VCL_SOURCE_FONTSUBSET_TTCR_HXX

#include <sft.hxx>

namespace vcl
{
    struct TrueTypeCreator;

/* TrueType data types */
    typedef struct {
        sal_uInt16 aw;
        sal_Int16  lsb;
    } longHorMetrics;

/* A generic base class for all TrueType tables */
    struct TrueTypeTable {
        sal_uInt32  tag;                         /* table tag                                                */
        sal_uInt8   *rawdata;                    /* raw data allocated by GetRawData_*()                     */
        void        *data;                       /* table specific data                                      */
    };

    enum TTCRErrCodes {
        TTCR_OK,                        
        TTCR_ZEROGLYPHS,                
        TTCR_UNKNOWN,                   
        TTCR_NONAMES,                   
        TTCR_NAMETOOLONG,               
        TTCR_POSTFORMAT                 
    };

    void TrueTypeCreatorNewEmpty(sal_uInt32 tag, TrueTypeCreator **_this);

    void AddTable(TrueTypeCreator *_this, TrueTypeTable *table);

    void RemoveTable(TrueTypeCreator *_this, sal_uInt32 tag);

    SFErrCodes StreamToMemory(TrueTypeCreator *_this, sal_uInt8 **ptr, sal_uInt32 *length);

    SFErrCodes StreamToFile(TrueTypeCreator *_this, const char* fname);

    int GetRawData(TrueTypeTable *, sal_uInt8 **ptr, sal_uInt32 *len, sal_uInt32 *tag);

    TrueTypeTable *TrueTypeTableNew(sal_uInt32 tag,
                                    sal_uInt32 nbytes,
                                    const sal_uInt8* ptr);

    TrueTypeTable *TrueTypeTableNew_head(sal_uInt32 fontRevision,
                                         sal_uInt16 flags,
                                         sal_uInt16 unitsPerEm,
                                         const sal_uInt8  *created,
                                         sal_uInt16 macStyle,
                                         sal_uInt16 lowestRecPPEM,
                                         sal_Int16  fontDirectionHint);

    TrueTypeTable *TrueTypeTableNew_hhea(sal_Int16  ascender,
                                         sal_Int16  descender,
                                         sal_Int16  linegap,
                                         sal_Int16  caretSlopeRise,
                                         sal_Int16  caretSlopeRun);

    TrueTypeTable *TrueTypeTableNew_loca();

    TrueTypeTable *TrueTypeTableNew_maxp( const sal_uInt8* maxp, int size);

    TrueTypeTable *TrueTypeTableNew_glyf();

    TrueTypeTable *TrueTypeTableNew_cmap();

    TrueTypeTable *TrueTypeTableNew_name(int n, NameRecord const *nr);

    TrueTypeTable *TrueTypeTableNew_post(sal_Int32 format,
                                         sal_Int32 italicAngle,
                                         sal_Int16 underlinePosition,
                                         sal_Int16 underlineThickness,
                                         sal_uInt32 isFixedPitch);

//  Table manipulation functions

    void cmapAdd(TrueTypeTable *, sal_uInt32 id, sal_uInt32 c, sal_uInt32 g);

    sal_uInt32 glyfAdd(TrueTypeTable *, GlyphData *glyphdata, TrueTypeFont *fnt);

    sal_uInt32 glyfCount(const TrueTypeTable *);

} // namespace

extern "C"
{
 void TrueTypeTableDispose(void *);

 void TrueTypeCreatorDispose(vcl::TrueTypeCreator *_this);
}

#endif // INCLUDED_VCL_SOURCE_FONTSUBSET_TTCR_HXX

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