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| author | Tor Andersson <tor.andersson@artifex.com> | 2018-03-15 11:55:06 +0100 |
|---|---|---|
| committer | Tor Andersson <tor.andersson@artifex.com> | 2018-03-16 14:51:41 +0100 |
| commit | 1cd2046b3cce264a3d13481652868fd1c31537fc (patch) | |
| tree | 8ba181113cc22f2ffe4ba1a3ed549926b747bc8c /source/pdf/pdf-font.c | |
| parent | 2612c20b725319833caeef36ccf4240f34e0e24b (diff) | |
| download | mupdf-1cd2046b3cce264a3d13481652868fd1c31537fc.tar.xz | |
Add simple fonts with 8-bit greek and cyrillic encodings.
Use KOI8-U for Cyrillic, and ISO 8859-7 for Greek.
Use with 'mutool create' using an extra argument to the %%Font directive:
%%Font TmRmC Times-Roman Cyrillic
BT
/TmRmC 16 Tf 10 10 Td
<fa c4 d2 c1 d7 d3 d4 d7 d5 ca d4 c5 21> Tj
ET
The alternatives are "Latin", "Greek", and "Cyrillic".
Diffstat (limited to 'source/pdf/pdf-font.c')
| -rw-r--r-- | source/pdf/pdf-font.c | 51 |
1 files changed, 47 insertions, 4 deletions
diff --git a/source/pdf/pdf-font.c b/source/pdf/pdf-font.c index 6be72250..69044c53 100644 --- a/source/pdf/pdf-font.c +++ b/source/pdf/pdf-font.c @@ -2147,9 +2147,51 @@ pdf_add_cid_font(fz_context *ctx, pdf_document *doc, fz_font *font) return fref; } -/* Creates simple font */ +/* Create simple (8-bit encoding) fonts */ + +static void +pdf_add_simple_font_encoding_imp(fz_context *ctx, pdf_document *doc, pdf_obj *font, const char * const glyph_names[]) +{ + pdf_obj *enc, *diff; + int i, last; + + pdf_dict_put_drop(ctx, font, PDF_NAME_Encoding, enc = pdf_new_dict(ctx, doc, 3)); + pdf_dict_put(ctx, enc, PDF_NAME_BaseEncoding, PDF_NAME_WinAnsiEncoding); + pdf_dict_put_drop(ctx, enc, PDF_NAME_Differences, diff = pdf_new_array(ctx, doc, 129)); + last = 0; + for (i = 128; i < 256; ++i) + { + const char *glyph = glyph_names[i-128]; + if (glyph) + { + if (last != i-1) + pdf_array_push_int(ctx, diff, i); + last = i; + pdf_array_push_name(ctx, diff, glyph); + } + } +} + +static void +pdf_add_simple_font_encoding(fz_context *ctx, pdf_document *doc, pdf_obj *fobj, int encoding) +{ + switch (encoding) + { + default: + case PDF_SIMPLE_ENCODING_LATIN: + pdf_dict_put(ctx, fobj, PDF_NAME_Encoding, PDF_NAME_WinAnsiEncoding); + break; + case PDF_SIMPLE_ENCODING_GREEK: + pdf_add_simple_font_encoding_imp(ctx, doc, fobj, pdf_glyph_name_from_iso8859_7); + break; + case PDF_SIMPLE_ENCODING_CYRILLIC: + pdf_add_simple_font_encoding_imp(ctx, doc, fobj, pdf_glyph_name_from_koi8u); + break; + } +} + pdf_obj * -pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font) +pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font, int encoding) { pdf_obj *fobj = NULL; pdf_obj *fref = NULL; @@ -2174,7 +2216,7 @@ 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, 0, font->buffer, digest); + fref = pdf_find_font_resource(ctx, doc, PDF_SIMPLE_FONT_RESOURCE, encoding, font->buffer, digest); if (fref == NULL) { fobj = pdf_new_dict(ctx, doc, 10); @@ -2184,7 +2226,6 @@ pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font) case TYPE1: pdf_dict_put(ctx, fobj, PDF_NAME_Subtype, PDF_NAME_Type1); break; case TRUETYPE: pdf_dict_put(ctx, fobj, PDF_NAME_Subtype, PDF_NAME_TrueType); break; } - pdf_dict_put(ctx, fobj, PDF_NAME_Encoding, PDF_NAME_WinAnsiEncoding); if (!is_builtin_font(ctx, font)) { @@ -2213,6 +2254,8 @@ pdf_add_simple_font(fz_context *ctx, pdf_document *doc, fz_font *font) pdf_dict_put_name(ctx, fobj, PDF_NAME_BaseFont, clean_font_name(font->name)); } + pdf_add_simple_font_encoding(ctx, doc, fobj, encoding); + fref = pdf_add_object(ctx, doc, fobj); /* Add ref to our font resource hash table. */ |