diff options
Diffstat (limited to 'src/cairo-pdf-interchange.c')
| -rw-r--r-- | src/cairo-pdf-interchange.c | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/cairo-pdf-interchange.c b/src/cairo-pdf-interchange.c index 38c5bac09..a84f0ccfa 100644 --- a/src/cairo-pdf-interchange.c +++ b/src/cairo-pdf-interchange.c @@ -699,6 +699,49 @@ cairo_pdf_interchange_write_names_dict (cairo_pdf_surface_t *surface) return CAIRO_STATUS_SUCCESS; } +static cairo_int_status_t +cairo_pdf_interchange_write_docinfo (cairo_pdf_surface_t *surface) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + + surface->docinfo_res = _cairo_pdf_surface_new_object (surface); + if (surface->docinfo_res.id == 0) + return _cairo_error (CAIRO_STATUS_NO_MEMORY); + + _cairo_output_stream_printf (surface->output, + "%d 0 obj\n" + "<< /Producer (cairo %s (http://cairographics.org))\n", + surface->docinfo_res.id, + cairo_version_string ()); + + if (ic->docinfo.title) + _cairo_output_stream_printf (surface->output, " /Title %s\n", ic->docinfo.title); + + if (ic->docinfo.author) + _cairo_output_stream_printf (surface->output, " /Author %s\n", ic->docinfo.author); + + if (ic->docinfo.subject) + _cairo_output_stream_printf (surface->output, " /Subject %s\n", ic->docinfo.subject); + + if (ic->docinfo.keywords) + _cairo_output_stream_printf (surface->output, " /Keywords %s\n", ic->docinfo.keywords); + + if (ic->docinfo.creator) + _cairo_output_stream_printf (surface->output, " /Creator %s\n", ic->docinfo.creator); + + if (ic->docinfo.create_date) + _cairo_output_stream_printf (surface->output, " /CreationDate %s\n", ic->docinfo.create_date); + + if (ic->docinfo.mod_date) + _cairo_output_stream_printf (surface->output, " /ModDate %s\n", ic->docinfo.mod_date); + + _cairo_output_stream_printf (surface->output, + ">>\n" + "endobj\n"); + + return CAIRO_STATUS_SUCCESS; +} + static void init_named_dest_key (cairo_pdf_named_dest_t *dest) { @@ -1035,6 +1078,10 @@ _cairo_pdf_interchange_write_document_objects (cairo_pdf_surface_t *surface) return status; status = cairo_pdf_interchange_write_names_dict (surface); + if (unlikely (status)) + return status; + + status = cairo_pdf_interchange_write_docinfo (surface); return status; } @@ -1075,6 +1122,7 @@ _cairo_pdf_interchange_init (cairo_pdf_surface_t *surface) if (unlikely (outline_root == NULL)) return _cairo_error (CAIRO_STATUS_NO_MEMORY); + memset (&ic->docinfo, 0, sizeof (ic->docinfo)); status = _cairo_array_append (&ic->outline, &outline_root); return status; @@ -1103,6 +1151,13 @@ _cairo_pdf_interchange_fini (cairo_pdf_surface_t *surface) free (outline); } _cairo_array_fini (&ic->outline); + free (ic->docinfo.title); + free (ic->docinfo.author); + free (ic->docinfo.subject); + free (ic->docinfo.keywords); + free (ic->docinfo.creator); + free (ic->docinfo.create_date); + free (ic->docinfo.mod_date); return CAIRO_STATUS_SUCCESS; } @@ -1171,3 +1226,125 @@ _cairo_pdf_interchange_add_outline (cairo_pdf_surface_t *surface, return CAIRO_STATUS_SUCCESS; } + +/* + * Date must be in the following format: + * + * YYYY-MM-DDThh:mm:ss[Z+-]hh:mm + * + * Only the year is required. If a field is included all preceding + * fields must be included. + */ +static char * +iso8601_to_pdf_date_string (const char *iso) +{ + char buf[40]; + const char *p; + int i; + + /* Check that utf8 contains only the characters "0123456789-T:Z+" */ + p = iso; + while (*p) { + if (!_cairo_isdigit (*p) && *p != '-' && *p != 'T' && + *p != ':' && *p != 'Z' && *p != '+') + return NULL; + p++; + } + + p = iso; + strcpy (buf, "("); + + /* YYYY (required) */ + if (strlen (p) < 4) + return NULL; + + strncat (buf, p, 4); + p += 4; + + /* -MM, -DD, Thh, :mm, :ss */ + for (i = 0; i < 5; i++) { + if (strlen (p) < 3) + goto finish; + + strncat (buf, p + 1, 2); + p += 3; + } + + /* Z, +, - */ + if (strlen (p) < 1) + goto finish; + strncat (buf, p, 1); + p += 1; + + /* hh */ + if (strlen (p) < 2) + goto finish; + + strncat (buf, p, 2); + strcat (buf, "'"); + p += 2; + + /* :mm */ + if (strlen (p) < 3) + goto finish; + + strncat (buf, p + 1, 3); + + finish: + strcat (buf, ")"); + return strdup (buf); +} + +cairo_int_status_t +_cairo_pdf_interchange_set_metadata (cairo_pdf_surface_t *surface, + cairo_pdf_metadata_t metadata, + const char *utf8) +{ + cairo_pdf_interchange_t *ic = &surface->interchange; + cairo_status_t status; + char *s = NULL; + + if (utf8) { + if (metadata == CAIRO_PDF_METADATA_CREATE_DATE || + metadata == CAIRO_PDF_METADATA_MOD_DATE) { + s = iso8601_to_pdf_date_string (utf8); + } else { + status = _cairo_utf8_to_pdf_string (utf8, &s); + if (unlikely (status)) + return status; + } + } + + switch (metadata) { + case CAIRO_PDF_METADATA_TITLE: + free (ic->docinfo.title); + ic->docinfo.title = s; + break; + case CAIRO_PDF_METADATA_AUTHOR: + free (ic->docinfo.author); + ic->docinfo.author = s; + break; + case CAIRO_PDF_METADATA_SUBJECT: + free (ic->docinfo.subject); + ic->docinfo.subject = s; + break; + case CAIRO_PDF_METADATA_KEYWORDS: + free (ic->docinfo.keywords); + ic->docinfo.keywords = s; + break; + case CAIRO_PDF_METADATA_CREATOR: + free (ic->docinfo.creator); + ic->docinfo.creator = s; + break; + case CAIRO_PDF_METADATA_CREATE_DATE: + free (ic->docinfo.create_date); + ic->docinfo.create_date = s; + break; + case CAIRO_PDF_METADATA_MOD_DATE: + free (ic->docinfo.mod_date); + ic->docinfo.mod_date = s; + break; + } + + return CAIRO_STATUS_SUCCESS; +} |