konevsa/typst
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add XMP

Browse Source
This commit is contained in:
Martin Haug 2023-02-12 23:32:14 +01:00 committed by Laurenz
parent dca478182b
commit 58adf1d025
3 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
Cargo.lock generated
View File

@ -1191,6 +1191,7 @@ dependencies = [
"unicode-xid",
"unscanny",
"usvg",
"xmp-writer",
]
[[package]]
@ -1565,6 +1566,11 @@ version = "0.13.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4d25c75bf9ea12c4040a97f829154768bbbce366287e2dc044af160cd79a13fd"
[[package]]
name = "xmp-writer"
version = "0.1.0"
source = "git+https://github.com/typst/xmp-writer#a4a36967cd73c9c19548e940bbcc55583a901417"
[[package]]
name = "yaml-front-matter"
version = "0.1.0"

1
Cargo.toml
View File

@ -40,6 +40,7 @@ unicode-segmentation = "1"
unicode-xid = "0.2"
unscanny = "0.1"
usvg = { version = "0.22", default-features = false }
xmp-writer = { git = "https://github.com/typst/xmp-writer" }
[profile.dev]
debug = 0

20
src/export/pdf/mod.rs
View File

@ -11,6 +11,7 @@ use std::hash::Hash;
use pdf_writer::types::Direction;
use pdf_writer::{Finish, Name, PdfWriter, Ref, TextStr};
use xmp_writer::{LangId, RenditionClass, XmpWriter};
use self::outline::HeadingNode;
use self::page::Page;
@ -115,20 +116,39 @@ fn write_catalog(ctx: &mut PdfContext) {
};
// Write the document information.
let meta_ref = ctx.alloc.bump();
let mut xmp = XmpWriter::new();
let mut info = ctx.writer.document_info(ctx.alloc.bump());
if let Some(title) = &ctx.document.title {
info.title(TextStr(title));
xmp.title([(None, title.as_str())]);
}
if let Some(author) = &ctx.document.author {
info.author(TextStr(author));
xmp.creator([(author.as_str())]);
}
info.creator(TextStr("Typst"));
xmp.creator_tool("Typst");
xmp.num_pages(ctx.document.pages.len() as u32);
xmp.format("application/pdf");
xmp.language(ctx.languages.keys().map(|lang| LangId(lang.as_str())));
xmp.rendition_class(RenditionClass::Proof);
xmp.pdf_version("1.7");
info.finish();
let xmp_buf = xmp.finish(None);
let mut meta_stream = ctx.writer.stream(meta_ref, &xmp_buf);
meta_stream.pair(Name(b"Type"), Name(b"Metadata"));
meta_stream.pair(Name(b"Subtype"), Name(b"XML"));
meta_stream.finish();
// Write the document catalog.
let mut catalog = ctx.writer.catalog(ctx.alloc.bump());
catalog.pages(ctx.page_tree_ref);
catalog.viewer_preferences().direction(dir);
catalog.pair(Name(b"Metadata"), meta_ref);
if let Some(outline_root_id) = outline_root_id {
catalog.outlines(outline_root_id);