/* Creates the PDF Encoding entry for the encoding.
* If baseenc is non-null, it is used as BaseEncoding entry.
*/
static pdf_obj *
create_encoding_resource (pdf_encoding *encoding, pdf_encoding *baseenc)
{
pdf_obj *differences;
ASSERT(encoding);
ASSERT(!encoding->resource);
differences = make_encoding_differences(encoding->glyphs,
baseenc ? baseenc->glyphs : NULL,
encoding->is_used);
if (differences) {
pdf_obj *resource = pdf_new_dict();
if (baseenc)
pdf_add_dict(resource, pdf_new_name("BaseEncoding"),
pdf_link_obj(baseenc->resource));
pdf_add_dict(resource, pdf_new_name("Differences"), differences);
return resource;
} else {
/* Fix a bug with the MinionPro package using MnSymbol fonts
* in its virtual fonts:
*
* Some font may have font_id even if no character is used.
* For example, suppose that a virtual file A.vf uses two
* other fonts, B and C. Even if only characters of B are used
* in a DVI document, C will have font_id too.
* In this case, both baseenc and differences can be NULL.
*
* Actually these fonts will be ignored in pdffont.c.
*/
return baseenc ? pdf_link_obj(baseenc->resource) : NULL;
}
}
pdf_obj *
CIDFont_get_resource (CIDFont *font)
{
ASSERT(font);
if (!font->indirect)
font->indirect = pdf_ref_obj(font->fontdict);
return pdf_link_obj(font->indirect);
}
pdf_obj *
Type0Font_get_resource (Type0Font *font)
{
ASSERT(font);
/*
* This looks somewhat strange.
*/
if (!font->indirect) {
pdf_obj *array;
array = pdf_new_array();
pdf_add_array(array, CIDFont_get_resource(font->descendant));
pdf_add_dict(font->fontdict, pdf_new_name("DescendantFonts"), array);
font->indirect = pdf_ref_obj(font->fontdict);
}
return pdf_link_obj(font->indirect);
}
pdf_obj *
pdf_get_font_reference (int font_id)
{
pdf_font *font;
CHECK_ID(font_id);
font = GET_FONT(font_id);
if (font->subtype == PDF_FONT_FONTTYPE_TYPE0) {
Type0Font *t0font;
t0font = Type0Font_cache_get(font->font_id);
return Type0Font_get_resource(t0font);
} else {
if (!font->reference) {
font->reference = pdf_ref_obj(pdf_font_get_resource(font));
}
}
return pdf_link_obj(font->reference);
}
static int
dev_set_font (int font_id)
{
struct dev_font *font;
struct dev_font *real_font;
int text_rotate;
double font_scale;
int len;
int vert_dir, vert_font;
/* text_mode() must come before text_state.is_mb is changed. */
text_mode();
font = GET_FONT(font_id);
ASSERT(font); /* Caller should check font_id. */
if (font->real_font_index >= 0)
real_font = GET_FONT(font->real_font_index);
else
real_font = font;
text_state.is_mb = (font->format == PDF_FONTTYPE_COMPOSITE) ? 1 : 0;
vert_font = font->wmode ? 1 : 0;
if (dev_param.autorotate) {
vert_dir = text_state.dir_mode;
} else {
vert_dir = vert_font;
}
text_rotate = (vert_font << 2)|vert_dir;
if (font->slant != text_state.matrix.slant ||
font->extend != text_state.matrix.extend ||
ANGLE_CHANGES(text_rotate, text_state.matrix.rotate)) {
text_state.force_reset = 1;
}
text_state.matrix.slant = font->slant;
text_state.matrix.extend = font->extend;
text_state.matrix.rotate = text_rotate;
if (!real_font->resource) {
real_font->resource = pdf_get_font_reference(real_font->font_id);
real_font->used_chars = pdf_get_font_usedchars(real_font->font_id);
}
if (!real_font->used_on_this_page) {
pdf_doc_add_page_resource("Font",
real_font->short_name,
pdf_link_obj(real_font->resource));
real_font->used_on_this_page = 1;
}
font_scale = (double) font->sptsize * dev_unit.dvi2pts;
len = sprintf(format_buffer, " /%s", real_font->short_name); /* space not necessary. */
format_buffer[len++] = ' ';
len += p_dtoa(font_scale, MIN(dev_unit.precision+1, DEV_PRECISION_MAX), format_buffer+len);
format_buffer[len++] = ' ';
format_buffer[len++] = 'T';
format_buffer[len++] = 'f';
pdf_doc_add_page_content(format_buffer, len); /* op: Tf */
if (font->bold > 0.0 || font->bold != text_state.bold_param) {
if (font->bold <= 0.0)
len = sprintf(format_buffer, " 0 Tr");
else
len = sprintf(format_buffer, " 2 Tr %.6f w", font->bold); /* _FIXME_ */
pdf_doc_add_page_content(format_buffer, len); /* op: Tr w */
}
text_state.bold_param = font->bold;
text_state.font_id = font_id;
return 0;
}
