libhpdf-dev 2.3.0+dfsg-1 / usr / include / hpdf_font.h

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/*
 * << Haru Free PDF Library >> -- hpdf_font.h
 *
 * URL: http://libharu.org
 *
 * Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp>
 * Copyright (c) 2007-2009 Antony Dovgal <tony@daylessday.org>
 *
 * Permission to use, copy, modify, distribute and sell this software
 * and its documentation for any purpose is hereby granted without fee,
 * provided that the above copyright notice appear in all copies and
 * that both that copyright notice and this permission notice appear
 * in supporting documentation.
 * It is provided "as is" without express or implied warranty.
 *
 */

#ifndef _HPDF_FONT_H
#define _HPDF_FONT_H

#include "hpdf_fontdef.h"

#ifdef __cplusplus
extern "C" {
#endif


/*----------------------------------------------------------------------------*/
/*----- Writing Mode ---------------------------------------------------------*/

typedef enum _HPDF_FontType {
    HPDF_FONT_TYPE1 = 0,
    HPDF_FONT_TRUETYPE,
    HPDF_FONT_TYPE3,
    HPDF_FONT_TYPE0_CID,
    HPDF_FONT_TYPE0_TT,
    HPDF_FONT_CID_TYPE0,
    HPDF_FONT_CID_TYPE2,
    HPDF_FONT_MMTYPE1
} HPDF_FontType;


typedef HPDF_Dict HPDF_Font;


typedef HPDF_TextWidth
(*HPDF_Font_TextWidths_Func)  (HPDF_Font        font,
                             const HPDF_BYTE  *text,
                             HPDF_UINT        len);


typedef HPDF_UINT
(*HPDF_Font_MeasureText_Func)  (HPDF_Font        font,
                              const HPDF_BYTE  *text,
                              HPDF_UINT        len,
                              HPDF_REAL        width,
                              HPDF_REAL        fontsize,
                              HPDF_REAL        charspace,
                              HPDF_REAL        wordspace,
                              HPDF_BOOL        wordwrap,
                              HPDF_REAL        *real_width);


typedef struct _HPDF_FontAttr_Rec  *HPDF_FontAttr;

typedef struct _HPDF_FontAttr_Rec {
    HPDF_FontType               type;
    HPDF_WritingMode            writing_mode;
    HPDF_Font_TextWidths_Func   text_width_fn;
    HPDF_Font_MeasureText_Func  measure_text_fn;
    HPDF_FontDef                fontdef;
    HPDF_Encoder                encoder;

    /* if the encoding-type is HPDF_ENCODER_TYPE_SINGLE_BYTE, the width of
     * each charactors are cashed in 'widths'.
     * when HPDF_ENCODER_TYPE_DOUBLE_BYTE the width is calculate each time.
     */
    HPDF_INT16*                 widths;
    HPDF_BYTE*                  used;

    HPDF_Xref                   xref;
    HPDF_Font                   descendant_font;
    HPDF_Dict                   map_stream;
    HPDF_Dict                   cmap_stream;
} HPDF_FontAttr_Rec;


HPDF_Font
HPDF_Type1Font_New  (HPDF_MMgr        mmgr,
                     HPDF_FontDef     fontdef,
                     HPDF_Encoder     encoder,
                     HPDF_Xref        xref);

HPDF_Font
HPDF_TTFont_New  (HPDF_MMgr        mmgr,
                  HPDF_FontDef     fontdef,
                  HPDF_Encoder     encoder,
                  HPDF_Xref        xref);

HPDF_Font
HPDF_Type0Font_New  (HPDF_MMgr        mmgr,
                     HPDF_FontDef     fontdef,
                     HPDF_Encoder     encoder,
                     HPDF_Xref        xref);


HPDF_BOOL
HPDF_Font_Validate  (HPDF_Font font);

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* _HPDF_FONT_H */

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