diff options
Diffstat (limited to 'source/pdf')
| -rw-r--r-- | source/pdf/pdf-font.c | 89 | ||||
| -rw-r--r-- | source/pdf/pdf-resources.c | 3 |
2 files changed, 89 insertions, 3 deletions
diff --git a/source/pdf/pdf-font.c b/source/pdf/pdf-font.c index 9e8a50dc..6be72250 100644 --- a/source/pdf/pdf-font.c +++ b/source/pdf/pdf-font.c @@ -2099,7 +2099,7 @@ pdf_add_cid_font(fz_context *ctx, pdf_document *doc, fz_font *font) /* Before we add this font as a resource check if the same font * already exists in our resources for this doc. If yes, then * hand back that reference */ - fref = pdf_find_font_resource(ctx, doc, PDF_CID_FONT_RESOURCE, font->buffer, digest); + fref = pdf_find_font_resource(ctx, doc, PDF_CID_FONT_RESOURCE, 0, font->buffer, digest); if (fref == NULL) { /* Set up desc, width, and font file */ @@ -2174,7 +2174,7 @@ pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font) /* Before we add this font as a resource check if the same font * already exists in our resources for this doc. If yes, then * hand back that reference */ - fref = pdf_find_font_resource(ctx, doc, PDF_SIMPLE_FONT_RESOURCE, font->buffer, digest); + fref = pdf_find_font_resource(ctx, doc, PDF_SIMPLE_FONT_RESOURCE, 0, font->buffer, digest); if (fref == NULL) { fobj = pdf_new_dict(ctx, doc, 10); @@ -2247,3 +2247,88 @@ pdf_font_writing_supported(fz_font *font) } return 0; } + +/* Add a non-embedded UTF16-encoded CID-font for the CJK scripts: CNS1, GB1, Japan1, or Korea1 */ +pdf_obj * +pdf_add_cjk_font(fz_context *ctx, pdf_document *doc, fz_font *fzfont, int script) +{ + pdf_obj *fref, *font, *subfont, *fontdesc; + pdf_obj *dfonts, *ros; + fz_rect bbox = { -200, -200, 1200, 1200 }; + unsigned char digest[16]; + + const char *basefont, *encoding, *ordering; + int supplement; + + switch (script) + { + case FZ_ADOBE_CNS_1: + basefont = "Song"; + encoding = "UniCNS-UTF16-H"; + ordering = "CNS1"; + supplement = 7; + break; + case FZ_ADOBE_GB_1: + basefont = "Ming"; + encoding = "UniGB-UTF16-H"; + ordering = "GB1"; + supplement = 5; + break; + default: + script = FZ_ADOBE_JAPAN_1; + /* fall through */ + case FZ_ADOBE_JAPAN_1: + basefont = "Mincho"; + encoding = "UniJIS-UTF16-H"; + ordering = "Japan1"; + supplement = 6; + break; + case FZ_ADOBE_KOREA_1: + basefont = "Batang"; + encoding = "UniKS-UTF16-H"; + ordering = "Korea1"; + supplement = 2; + break; + } + + fref = pdf_find_font_resource(ctx, doc, PDF_CJK_FONT_RESOURCE, script, fzfont->buffer, digest); + if (fref) + return fref; + + font = pdf_new_dict(ctx, doc, 5); + pdf_dict_put(ctx, font, PDF_NAME_Type, PDF_NAME_Font); + pdf_dict_put(ctx, font, PDF_NAME_Subtype, PDF_NAME_Type0); + pdf_dict_put_name(ctx, font, PDF_NAME_BaseFont, basefont); + pdf_dict_put_name(ctx, font, PDF_NAME_Encoding, encoding); + pdf_dict_put_drop(ctx, font, PDF_NAME_DescendantFonts, dfonts = pdf_new_array(ctx, doc, 1)); + subfont = pdf_new_dict(ctx, doc, 5); + { + pdf_dict_put(ctx, subfont, PDF_NAME_Type, PDF_NAME_Font); + pdf_dict_put(ctx, subfont, PDF_NAME_Subtype, PDF_NAME_CIDFontType0); + pdf_dict_put_name(ctx, subfont, PDF_NAME_BaseFont, basefont); + pdf_dict_put_drop(ctx, subfont, PDF_NAME_CIDSystemInfo, ros = pdf_new_dict(ctx, doc, 3)); + pdf_dict_put_text_string(ctx, ros, PDF_NAME_Registry, "Adobe"); + pdf_dict_put_text_string(ctx, ros, PDF_NAME_Ordering, ordering); + pdf_dict_put_int(ctx, ros, PDF_NAME_Supplement, supplement); + fontdesc = pdf_new_dict(ctx, doc, 8); + { + pdf_dict_put(ctx, fontdesc, PDF_NAME_Type, PDF_NAME_FontDescriptor); + pdf_dict_put_text_string(ctx, fontdesc, PDF_NAME_FontName, basefont); + pdf_dict_put_int(ctx, fontdesc, PDF_NAME_Flags, 0); + pdf_dict_put_rect(ctx, fontdesc, PDF_NAME_FontBBox, &bbox); + pdf_dict_put_int(ctx, fontdesc, PDF_NAME_ItalicAngle, 0); + pdf_dict_put_int(ctx, fontdesc, PDF_NAME_Ascent, 1000); + pdf_dict_put_int(ctx, fontdesc, PDF_NAME_Descent, -200); + pdf_dict_put_int(ctx, fontdesc, PDF_NAME_StemV, 80); + } + pdf_dict_put_drop(ctx, subfont, PDF_NAME_FontDescriptor, pdf_add_object_drop(ctx, doc, fontdesc)); + } + pdf_array_push_drop(ctx, dfonts, pdf_add_object_drop(ctx, doc, subfont)); + + fref = pdf_add_object_drop(ctx, doc, font); + + /* Add ref to our font resource hash table. */ + fref = pdf_insert_font_resource(ctx, doc, digest, fref); + + return fref; +} diff --git a/source/pdf/pdf-resources.c b/source/pdf/pdf-resources.c index 72adf081..720ee2b1 100644 --- a/source/pdf/pdf-resources.c +++ b/source/pdf/pdf-resources.c @@ -109,7 +109,7 @@ pdf_insert_image_resource(fz_context *ctx, pdf_document *doc, unsigned char dige * it may be more problematic. */ pdf_obj * -pdf_find_font_resource(fz_context *ctx, pdf_document *doc, int type, fz_buffer *item, unsigned char digest[16]) +pdf_find_font_resource(fz_context *ctx, pdf_document *doc, int type, int encoding, fz_buffer *item, unsigned char digest[16]) { fz_md5 state; unsigned char *data; @@ -124,6 +124,7 @@ pdf_find_font_resource(fz_context *ctx, pdf_document *doc, int type, fz_buffer * /* Create md5 and see if we have the item in our table */ fz_md5_init(&state); fz_md5_update(&state, (unsigned char*)&type, sizeof type); + fz_md5_update(&state, (unsigned char*)&encoding, sizeof encoding); fz_md5_update(&state, data, size); fz_md5_final(&state, digest); |