fz_error
pdf_loadfont(pdf_fontdesc **fontdescp, pdf_xref *xref, fz_obj *rdb, fz_obj *dict)
{
fz_error error;
char *subtype;
fz_obj *dfonts;
fz_obj *charprocs;
if ((*fontdescp = pdf_finditem(xref->store, pdf_dropfont, dict)))
{
pdf_keepfont(*fontdescp);
return fz_okay;
}
subtype = fz_toname(fz_dictgets(dict, "Subtype"));
dfonts = fz_dictgets(dict, "DescendantFonts");
charprocs = fz_dictgets(dict, "CharProcs");
if (subtype && !strcmp(subtype, "Type0"))
error = loadtype0(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "Type1"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "MMType1"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "TrueType"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "Type3"))
error = pdf_loadtype3font(fontdescp, xref, rdb, dict);
else if (charprocs)
{
fz_warn("unknown font format, guessing type3.");
error = pdf_loadtype3font(fontdescp, xref, rdb, dict);
}
else if (dfonts)
{
fz_warn("unknown font format, guessing type0.");
error = loadtype0(fontdescp, xref, dict);
}
else
{
fz_warn("unknown font format, guessing type1 or truetype.");
error = loadsimplefont(fontdescp, xref, dict);
}
if (error)
return fz_rethrow(error, "cannot load font (%d %d R)", fz_tonum(dict), fz_togen(dict));
/* Save the widths to stretch non-CJK substitute fonts */
if ((*fontdescp)->font->ftsubstitute && !(*fontdescp)->tottfcmap)
pdf_makewidthtable(*fontdescp);
/* SumatraPDF: this font renders wrong without hinting */
if (strstr((*fontdescp)->font->name, "MingLiU"))
(*fontdescp)->font->fthint = 1;
pdf_storeitem(xref->store, pdf_keepfont, pdf_dropfont, dict, *fontdescp);
return fz_okay;
}
fz_error
pdf_loadfont(pdf_fontdesc **fontdescp, pdf_xref *xref, fz_obj *rdb, fz_obj *dict)
{
fz_error error;
char *subtype;
fz_obj *dfonts;
fz_obj *charprocs;
if ((*fontdescp = pdf_finditem(xref->store, PDF_KFONT, dict)))
{
pdf_keepfont(*fontdescp);
return fz_okay;
}
subtype = fz_toname(fz_dictgets(dict, "Subtype"));
dfonts = fz_dictgets(dict, "DescendantFonts");
charprocs = fz_dictgets(dict, "CharProcs");
if (subtype && !strcmp(subtype, "Type0"))
error = loadtype0(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "Type1"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "MMType1"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "TrueType"))
error = loadsimplefont(fontdescp, xref, dict);
else if (subtype && !strcmp(subtype, "Type3"))
error = pdf_loadtype3font(fontdescp, xref, rdb, dict);
else if (charprocs)
{
fz_warn("unknown font format, guessing type3.");
error = pdf_loadtype3font(fontdescp, xref, rdb, dict);
}
else if (dfonts)
{
fz_warn("unknown font format, guessing type0.");
error = loadtype0(fontdescp, xref, dict);
}
else
{
fz_warn("unknown font format, guessing type1 or truetype.");
error = loadsimplefont(fontdescp, xref, dict);
}
if (error)
return fz_rethrow(error, "cannot load font");
error = pdf_storeitem(xref->store, PDF_KFONT, dict, *fontdescp);
if (error)
return fz_rethrow(error, "cannot store font resource");
return fz_okay;
}
static void keepitem(pdf_itemkind kind, void *val)
{
switch (kind)
{
case PDF_KCOLORSPACE: fz_keepcolorspace(val); break;
case PDF_KFUNCTION: pdf_keepfunction(val); break;
case PDF_KXOBJECT: pdf_keepxobject(val); break;
case PDF_KIMAGE: fz_keepimage(val); break;
case PDF_KPATTERN: pdf_keeppattern(val); break;
case PDF_KSHADE: fz_keepshade(val); break;
case PDF_KCMAP: pdf_keepcmap(val); break;
case PDF_KFONT: pdf_keepfont(val); break;
}
}
