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|
/*---------------------------------------------------------------------------*
| PDFlib - A library for generating PDF on the fly |
+---------------------------------------------------------------------------+
| Copyright (c) 1997-2006 Thomas Merz and PDFlib GmbH. All rights reserved. |
+---------------------------------------------------------------------------+
| |
| This software is subject to the PDFlib license. It is NOT in the |
| public domain. Extended versions and commercial licenses are |
| available, please check http://www.pdflib.com. |
| |
*---------------------------------------------------------------------------*/
/* $Id: p_encoding.c,v 1.1 2008/10/17 06:11:49 scuri Exp $
*
* PDFlib encoding handling routines
*
*/
#include "p_intern.h"
#include "p_font.h"
void
pdf__encoding_set_char(PDF *p, const char *encoding, int slot,
const char *glyphname, int uv)
{
int enc;
pdc_encodingvector *ev;
char given;
if (!encoding || !*encoding)
pdc_error(p->pdc, PDC_E_ILLARG_EMPTY, "encoding", 0, 0, 0);
if (slot < 0 || slot > 255)
pdc_error(p->pdc, PDC_E_ILLARG_INT,
"slot", pdc_errprintf(p->pdc, "%d", slot), 0, 0);
if (uv < 0 || uv >= PDC_NUM_BMPVAL)
pdc_error(p->pdc, PDC_E_ILLARG_INT,
"uv", pdc_errprintf(p->pdc, "%d", uv), 0, 0);
if (!glyphname || !*glyphname)
{
if (uv == 0)
pdc_error(p->pdc, PDF_E_ENC_GLYPHORCODE, 0, 0, 0, 0);
}
for (enc = (int) pdc_invalidenc + 1; enc < (int) pdc_firstvarenc; enc++)
{
if (!strcmp(encoding, pdc_get_fixed_encoding_name((pdc_encoding) enc)))
pdc_error(p->pdc, PDF_E_ENC_CANTCHANGE, encoding, 0, 0, 0);
}
if (uv == 0)
{
given = 1;
uv = (int) pdc_insert_glyphname(p->pdc, glyphname);
}
else if (!glyphname || !*glyphname)
{
given = 0;
glyphname = pdc_insert_unicode(p->pdc, (pdc_ushort) uv);
}
else
{
const char *reg_glyphname;
pdc_ushort reg_uv;
int retval;
given = 1;
reg_glyphname = pdc_unicode2glyphname(p->pdc, (pdc_ushort) uv);
if (reg_glyphname)
{
if (strcmp(reg_glyphname, glyphname) &&
p->debug[(int) 'F'] == pdc_true)
{
pdc_warning(p->pdc, PDF_E_ENC_BADGLYPH,
glyphname,
pdc_errprintf(p->pdc, "%04X", uv),
reg_glyphname, 0);
}
/* We take the registered name */
}
else
{
retval = pdc_glyphname2unicode(p->pdc, glyphname);
if (retval > -1)
{
reg_uv = (pdc_ushort) retval;
if (reg_uv && reg_uv != (pdc_ushort) uv &&
p->debug[(int) 'F'] == pdc_true)
{
pdc_error(p->pdc, PDF_E_ENC_BADUNICODE,
pdc_errprintf(p->pdc, "%04X", uv), glyphname,
pdc_errprintf(p->pdc, "%04X", reg_uv), 0);
}
}
/* We register the new glyph name and unicode value */
pdc_register_glyphname(p->pdc, glyphname, (pdc_ushort) uv,
pdc_false);
}
}
/* search for a registered encoding */
enc = pdc_find_encoding(p->pdc, encoding);
/* not found */
if (enc == pdc_invalidenc)
{
ev = pdc_new_encoding(p->pdc, encoding);
ev->flags |= PDC_ENC_USER;
ev->flags |= PDC_ENC_SETNAMES;
ev->flags |= PDC_ENC_ALLOCCHARS;
enc = pdc_insert_encoding_vector(p->pdc, ev);
}
/* encoding vector */
ev = pdc_get_encoding_vector(p->pdc, (pdc_encoding)enc);
if (!(ev->flags & PDC_ENC_USER))
{
pdc_error(p->pdc, PDF_E_ENC_CANTCHANGE, encoding, 0, 0, 0);
}
else if (ev->flags & PDC_ENC_USED)
{
pdc_error(p->pdc, PDF_E_ENC_INUSE, encoding, 0, 0, 0);
}
/* Free character name */
if (ev->chars[slot] != NULL)
pdc_free(p->pdc, ev->chars[slot]);
/* Saving */
ev->codes[slot] = (pdc_ushort) uv;
if (glyphname != NULL)
ev->chars[slot] = pdc_strdup(p->pdc, glyphname);
ev->given[slot] = given;
pdc_encoding_logg_protocol(p->pdc, ev);
}
pdc_encoding
pdf_get_hypertextencoding_param(PDF *p, int *codepage)
{
if (p->hypertextencoding == pdc_invalidenc)
{
p->hypertextencoding = pdf_get_hypertextencoding(p, "auto",
&p->hypertextcodepage, pdc_true);
if (p->hypertextencoding == pdc_invalidenc)
pdc_error(p->pdc, -1, 0, 0, 0, 0);
}
if (codepage)
*codepage = p->hypertextcodepage;
return p->hypertextencoding;
}
pdc_encoding
pdf_get_hypertextencoding(PDF *p, const char *encoding, int *codepage,
pdc_bool verbose)
{
pdc_encoding enc = pdc_invalidenc;
*codepage = 0;
if (!*encoding)
{
enc = pdc_unicode;
}
else
{
{
enc = pdc_get_encoding(p->pdc, encoding, codepage, verbose);
if (enc < 0 && enc != pdc_invalidenc && enc != pdc_unicode)
{
pdc_set_errmsg(p->pdc, PDF_E_ENC_BADHYPTEXTENC, encoding,
0, 0, 0);
enc = pdc_invalidenc;
}
}
}
return enc;
}
|
