HPDF_Font
HPDF_Type0Font_New (HPDF_MMgr mmgr,
HPDF_FontDef fontdef,
HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_Dict font;
HPDF_FontAttr attr;
HPDF_CMapEncoderAttr encoder_attr;
HPDF_STATUS ret = 0;
HPDF_Array descendant_fonts;
HPDF_PTRACE ((" HPDF_Type0Font_New\n"));
font = HPDF_Dict_New (mmgr);
if (!font)
return NULL;
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
/* check whether the fontdef object and the encoder object is valid. */
if (encoder->type != HPDF_ENCODER_TYPE_DOUBLE_BYTE) {
HPDF_SetError(font->error, HPDF_INVALID_ENCODER_TYPE, 0);
return NULL;
}
if (fontdef->type != HPDF_FONTDEF_TYPE_CID &&
fontdef->type != HPDF_FONTDEF_TYPE_TRUETYPE) {
HPDF_SetError(font->error, HPDF_INVALID_FONTDEF_TYPE, 0);
return NULL;
}
attr = HPDF_GetMem (mmgr, sizeof(HPDF_FontAttr_Rec));
if (!attr) {
HPDF_Dict_Free (font);
return NULL;
}
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
font->write_fn = NULL;
font->free_fn = OnFree_Func;
font->attr = attr;
encoder_attr = (HPDF_CMapEncoderAttr)encoder->attr;
HPDF_MemSet (attr, 0, sizeof(HPDF_FontAttr_Rec));
attr->writing_mode = encoder_attr->writing_mode;
attr->text_width_fn = TextWidth;
attr->measure_text_fn = MeasureText;
attr->fontdef = fontdef;
attr->encoder = encoder;
attr->xref = xref;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
ret += HPDF_Dict_AddName (font, "Subtype", "Type0");
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
ret += HPDF_Dict_AddName (font, "Encoding", encoder->name);
} else {
/*
* Handle the Unicode encoding, see hpdf_encoding_utf.c For some
* reason, xpdf-based readers cannot deal with our cmap but work
* fine when using the predefined "Identity-H"
* encoding. However, text selection does not work, unless we
* add a ToUnicode cmap. This CMap should also be "Identity",
* but that does not work -- specifying our cmap as a stream however
* does work. Who can understand that ?
*/
if (HPDF_StrCmp(encoder_attr->ordering, "Identity-H") == 0) {
ret += HPDF_Dict_AddName (font, "Encoding", "Identity-H");
attr->cmap_stream = CreateCMap (encoder, xref);
if (attr->cmap_stream) {
ret += HPDF_Dict_Add (font, "ToUnicode", attr->cmap_stream);
} else
return NULL;
} else {
attr->cmap_stream = CreateCMap (encoder, xref);
if (attr->cmap_stream) {
ret += HPDF_Dict_Add (font, "Encoding", attr->cmap_stream);
} else
return NULL;
}
}
if (ret != HPDF_OK)
return NULL;
descendant_fonts = HPDF_Array_New (mmgr);
if (!descendant_fonts)
return NULL;
if (HPDF_Dict_Add (font, "DescendantFonts", descendant_fonts) != HPDF_OK)
return NULL;
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
attr->descendant_font = CIDFontType0_New (font, xref);
attr->type = HPDF_FONT_TYPE0_CID;
} else {
attr->descendant_font = CIDFontType2_New (font, xref);
attr->type = HPDF_FONT_TYPE0_TT;
}
if (!attr->descendant_font)
return NULL;
else
if (HPDF_Array_Add (descendant_fonts, attr->descendant_font) !=
HPDF_OK)
return NULL;
return font;
}
HPDF_Font
HPDF_Type0Font_New (HPDF_MMgr mmgr,
HPDF_FontDef fontdef,
HPDF_Encoder encoder,
HPDF_Xref xref)
{
HPDF_Dict font;
HPDF_FontAttr attr;
HPDF_CMapEncoderAttr encoder_attr;
HPDF_STATUS ret = 0;
HPDF_Array descendant_fonts;
HPDF_PTRACE ((" HPDF_Type0Font_New\n"));
font = HPDF_Dict_New (mmgr);
if (!font)
return NULL;
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
/* check whether the fontdef object and the encoder object is valid. */
if (encoder->type != HPDF_ENCODER_TYPE_DOUBLE_BYTE) {
HPDF_SetError(font->error, HPDF_INVALID_ENCODER_TYPE, 0);
return NULL;
}
if (fontdef->type != HPDF_FONTDEF_TYPE_CID &&
fontdef->type != HPDF_FONTDEF_TYPE_TRUETYPE) {
HPDF_SetError(font->error, HPDF_INVALID_FONTDEF_TYPE, 0);
return NULL;
}
attr = HPDF_GetMem (mmgr, sizeof(HPDF_FontAttr_Rec));
if (!attr) {
HPDF_Dict_Free (font);
return NULL;
}
font->header.obj_class |= HPDF_OSUBCLASS_FONT;
font->write_fn = NULL;
font->free_fn = OnFree_Func;
font->attr = attr;
encoder_attr = (HPDF_CMapEncoderAttr)encoder->attr;
HPDF_MemSet (attr, 0, sizeof(HPDF_FontAttr_Rec));
attr->writing_mode = encoder_attr->writing_mode;
attr->text_width_fn = TextWidth;
attr->measure_text_fn = MeasureText;
attr->fontdef = fontdef;
attr->encoder = encoder;
attr->xref = xref;
if (HPDF_Xref_Add (xref, font) != HPDF_OK)
return NULL;
ret += HPDF_Dict_AddName (font, "Type", "Font");
ret += HPDF_Dict_AddName (font, "BaseFont", fontdef->base_font);
ret += HPDF_Dict_AddName (font, "Subtype", "Type0");
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
ret += HPDF_Dict_AddName (font, "Encoding", encoder->name);
} else {
attr->cmap_stream = CreateCMap (encoder, xref);
if (attr->cmap_stream) {
ret += HPDF_Dict_Add (font, "Encoding", attr->cmap_stream);
} else
return NULL;
}
if (ret != HPDF_OK)
return NULL;
descendant_fonts = HPDF_Array_New (mmgr);
if (!descendant_fonts)
return NULL;
if (HPDF_Dict_Add (font, "DescendantFonts", descendant_fonts) != HPDF_OK)
return NULL;
if (fontdef->type == HPDF_FONTDEF_TYPE_CID) {
attr->descendant_font = CIDFontType0_New (font, xref);
attr->type = HPDF_FONT_TYPE0_CID;
} else {
attr->descendant_font = CIDFontType2_New (font, xref);
attr->type = HPDF_FONT_TYPE0_TT;
}
if (!attr->descendant_font)
return NULL;
else
if (HPDF_Array_Add (descendant_fonts, attr->descendant_font) !=
HPDF_OK)
return NULL;
return font;
}
