mirror of
https://github.com/storytold/designcraft.git
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5cdcac4ace
Replace native engine saves and engine/MCP exports atomically, preserving private permissions during staging and cleaning up failed writes. Add regressions for long filenames and caught writer unwinding. Fixes #436. Co-authored-by: aiongg <[email protected]> Co-authored-by: skylar taylor-barrick <[email protected]>
902 lines
44 KiB
Rust
902 lines
44 KiB
Rust
//! File › Export PDF (Print).
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use designcraft_pdf::{Marks, PdfOptions, Standard};
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use serde_json::{Value, json};
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use super::{CommandSpec, bad, cmd, has_doc, str_param};
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use crate::{EngineError, Result, Session};
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pub fn specs() -> Vec<CommandSpec> {
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vec![
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cmd!(noundo "file.exportPdf", "Export PDF…", ["File"], None,
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"{path?, pages?: \"1-3,5\" | [1,3] (1-based positions; default all), flatten?: high|medium|low|ppi (Transparency Flattener: spreads with transparency are rasterised), spreads?: bool, fullScreen?: bool, bookmarksPanel?: bool, pageLayout?: single|continuous|twoUp|twoUpCover|twoUpContinuous, view?: fitPage|fitWidth|actual, advanceSeconds?: number (interactive PDF), bleed?: bool (document bleed), marks?: bool | {crop?, bleed?, pageInfo?, weight?, offset?}, standard?: \"none\"|\"x4\"|\"a2b\", compressImages?: bool, tagged?: bool (structure tree: stories as paragraphs, figures with alt text), media?: bool (interactive: embed placed video and sound), title?, author?} → {path, bytes, pages, warnings} (no path: {base64, …})",
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has_doc, export_pdf),
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cmd!(noundo "file.exportEpub", "Export EPUB (Reflowable)…", ["File"], None,
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"{path?, title?, author?, language?: \"en\", cover?: bool (the first page as the cover image), fixedLayout?: bool (pre-paginated: each page as an image with its text)} → {path, bytes} (no path: {base64, bytes})",
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has_doc, export_epub),
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cmd!(noundo "file.exportFixedEpub", "Export EPUB (Fixed Layout)…", ["File"], None,
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"{path?, title?, author?, language?} — pre-paginated EPUB → {path, bytes} (no path: {base64, bytes})",
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has_doc, |s, p| {
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export_epub(s, &super::with_param(p, "fixedLayout", serde_json::json!(true)))
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}),
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cmd!(noundo "file.printBooklet", "Print Booklet…", ["File"], None,
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"{path?, type?: saddleStitch|twoUpConsecutive, spaceBetween? (pt)} — printer spreads as PDF (pages imposed in booklet order) → {path, bytes, sheets} (no path: {base64, …})",
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has_doc, print_booklet),
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cmd!(noundo "file.exportHtml", "Export HTML…", ["File"], None,
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"{path?, title?, language?} — one self-contained page (styles inline, images embedded), stories and graphics in reading order → {path, bytes} (no path: {text, bytes})",
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has_doc, export_html),
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cmd!(noundo "file.exportText", "Export Text…", ["File"], None,
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"{path?, format?: \"txt\"|\"rtf\"|\"tagged\" (Tagged Text; default from the path, else txt), story?, frame?} — the story being edited or of the selected frame → {path, bytes} (no path: {text, bytes})",
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has_story_target, export_text),
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]
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}
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fn print_booklet(s: &mut Session, p: &Value) -> Result<Value> {
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const ID: &str = "file.printBooklet";
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let kind = match str_param(p, "type").unwrap_or("saddleStitch") {
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"saddleStitch" => designcraft_pdf::BookletKind::SaddleStitch,
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"twoUpConsecutive" | "twoUp" => designcraft_pdf::BookletKind::TwoUpConsecutive,
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t => return Err(bad(ID, format!("unknown type `{t}` (saddleStitch, twoUpConsecutive)"))),
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};
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let opts = designcraft_pdf::BookletOptions { kind, space_between: p.get("spaceBetween").and_then(Value::as_f64).unwrap_or(0.0), title: None };
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let st = s.doc()?;
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let r = designcraft_pdf::export_booklet(&st.doc, &s.cache, &opts).map_err(|e| EngineError::Other(e.to_string()))?;
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match str_param(p, "path") {
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Some(path) => {
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#[cfg(not(target_arch = "wasm32"))]
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crate::atomic::write_file(path, &r.bytes)?;
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Ok(json!({"path": path, "bytes": r.bytes.len(), "sheets": r.pages, "warnings": r.warnings}))
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}
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None => Ok(json!({"base64": super::file::base64_encode(&r.bytes), "bytes": r.bytes.len(), "sheets": r.pages, "warnings": r.warnings})),
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}
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}
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fn export_html(s: &mut Session, p: &Value) -> Result<Value> {
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let st = s.doc()?;
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let opts =
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designcraft_epub::HtmlOptions { title: str_param(p, "title").map(str::to_string), language: str_param(p, "language").map(str::to_string) };
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let text = designcraft_epub::export_html(&st.doc, &opts);
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match str_param(p, "path") {
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Some(path) => {
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#[cfg(not(target_arch = "wasm32"))]
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crate::atomic::write_file(path, text.as_bytes())?;
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Ok(json!({"path": path, "bytes": text.len()}))
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}
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None => Ok(json!({"bytes": text.len(), "text": text})),
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}
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}
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fn has_story_target(s: &Session) -> std::result::Result<(), String> {
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super::text::story_of(s, &Value::Null).map(|_| ()).ok_or_else(|| "edit text or select a text frame".into())
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}
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fn export_text(s: &mut Session, p: &Value) -> Result<Value> {
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const ID: &str = "file.exportText";
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let sid = super::text::story_of(s, p).ok_or_else(|| bad(ID, "edit text or select a text frame"))?;
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let doc = &s.doc()?.doc;
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let story = doc.stories.get(&sid).ok_or_else(|| bad(ID, format!("no story {}", sid.0)))?;
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let path = str_param(p, "path");
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let format = match str_param(p, "format") {
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Some(f @ ("rtf" | "tagged")) => f,
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Some("txt") | Some("text") => "txt",
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Some(f) => return Err(bad(ID, format!("unknown format `{f}` (txt, rtf, tagged)"))),
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None if path.is_some_and(|x| x.to_ascii_lowercase().ends_with(".rtf")) => "rtf",
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None => "txt",
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};
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let text = match format {
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"rtf" => designcraft_textimport::export::rtf(doc, story),
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"tagged" => designcraft_textimport::tagged::tagged_text(doc, story),
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_ => designcraft_textimport::export::plain_text(story),
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};
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match path {
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Some(path) => {
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#[cfg(not(target_arch = "wasm32"))]
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crate::atomic::write_file(path, text.as_bytes())?;
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Ok(json!({"path": path, "bytes": text.len()}))
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}
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None => Ok(json!({"bytes": text.len(), "text": text})),
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}
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}
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/// Text of the frames on page `abs`, in line order (for fixed-layout pages).
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fn page_text(d: &designcraft_doc::Document, cache: &designcraft_compose::Cache, abs: usize) -> String {
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let mut out = String::new();
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for st in d.stories.values() {
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let cs = cache.get(d, st.id, None);
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for ft in &cs.frames {
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if d.page_of_item(ft.frame) != Some(abs) {
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continue;
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}
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for l in &ft.lines {
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let r = l.range.start.min(st.text.len())..l.range.end.min(st.text.len());
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let t: String = st.text[r].chars().filter(|c| !('\u{E000}'..='\u{F8FF}').contains(c)).collect();
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if !t.trim().is_empty() {
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out.push_str(t.trim_end_matches('\n'));
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out.push('\n');
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}
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}
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}
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}
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out
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}
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fn export_epub(s: &mut Session, p: &Value) -> Result<Value> {
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let st = s.doc()?;
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// Object Export Options › Rasterize: those objects go in as images.
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let (raster, _) = rasterize_where(&st.doc, &s.cache, 144.0, |it| it.export_options.rasterize && !threaded(&st.doc, it));
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let epub_doc: &designcraft_doc::Document = raster.as_ref().unwrap_or(&st.doc);
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let fixed = p.get("fixedLayout").and_then(Value::as_bool).unwrap_or(false);
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let want_cover = p.get("cover").and_then(Value::as_bool).unwrap_or(false);
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let mut rr = designcraft_render::Renderer::new();
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rr.threads = designcraft_render::default_threads();
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let ropts = designcraft_render::RenderOptions { printing_only: true, ..Default::default() };
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let cover = (want_cover && !fixed).then(|| rr.render_page(&st.doc, &s.cache, 0, 2.0, false, &ropts).map(|img| img.to_png())).flatten();
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let opts = designcraft_epub::EpubOptions {
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title: p.get("title").and_then(Value::as_str).map(str::to_string),
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author: p.get("author").and_then(Value::as_str).map(str::to_string),
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language: p.get("language").and_then(Value::as_str).unwrap_or("en").to_string(),
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identifier: None,
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cover,
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};
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if fixed {
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let d = &st.doc;
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let mut pages = Vec::new();
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for i in 0..d.page_count() {
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let Some((si, pi)) = d.page_loc(i) else { continue };
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let b = d.spreads[si].pages[pi].bounds();
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let Some(img) = rr.render_page(d, &s.cache, i, 2.0, false, &ropts) else { continue };
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pages.push(designcraft_epub::FixedPage { png: img.to_png(), width: b.width(), height: b.height(), text: page_text(d, &s.cache, i) });
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}
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let bytes = designcraft_epub::export_fixed_epub(d, &pages, &opts).map_err(|e| crate::EngineError::Other(e.to_string()))?;
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return match p.get("path").and_then(Value::as_str) {
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Some(path) => {
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write_file(path, &bytes)?;
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Ok(serde_json::json!({"path": path, "bytes": bytes.len(), "pages": pages.len()}))
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}
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None => Ok(serde_json::json!({"base64": super::base64_encode(&bytes), "bytes": bytes.len(), "pages": pages.len()})),
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};
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}
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let bytes = designcraft_epub::export_epub(epub_doc, &opts).map_err(|e| crate::EngineError::Other(e.to_string()))?;
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match p.get("path").and_then(Value::as_str) {
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Some(path) => {
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#[cfg(not(target_arch = "wasm32"))]
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crate::atomic::write_file(path, &bytes)?;
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Ok(serde_json::json!({"path": path, "bytes": bytes.len()}))
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}
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None => Ok(serde_json::json!({"base64": super::file::base64_encode(&bytes), "bytes": bytes.len()})),
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}
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}
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pub(crate) fn options(p: &Value, page_count: usize) -> Result<PdfOptions> {
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const ID: &str = "file.exportPdf";
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let pages = match p.get("pages") {
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None | Some(Value::Null) => None,
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Some(Value::String(s)) => Some(designcraft_pdf::parse_page_range(s, page_count).map_err(|e| bad(ID, e.to_string()))?),
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Some(Value::Array(a)) => {
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let mut v = Vec::new();
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for x in a {
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let n = x.as_u64().filter(|n| *n >= 1 && (*n as usize) <= page_count).ok_or_else(|| bad(ID, format!("bad page {x}")))?;
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v.push(n as usize - 1);
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}
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Some(v)
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}
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Some(Value::Number(n)) => {
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let n = n.as_u64().filter(|n| *n >= 1 && (*n as usize) <= page_count).ok_or_else(|| bad(ID, format!("bad page {n}")))?;
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Some(vec![n as usize - 1])
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}
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Some(v) => return Err(bad(ID, format!("bad `pages`: {v}"))),
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};
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let spreads = p.get("spreads").and_then(Value::as_bool).unwrap_or(false);
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let bleed = p.get("bleed").and_then(Value::as_bool).unwrap_or(false);
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let marks = match p.get("marks") {
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Some(Value::Bool(true)) => Marks::ALL,
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Some(Value::Object(m)) => {
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let b = |k: &str| m.get(k).and_then(Value::as_bool).unwrap_or(false);
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Marks {
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crop: b("crop"),
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bleed: b("bleed"),
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page_info: b("pageInfo"),
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weight: m.get("weight").and_then(Value::as_f64).unwrap_or(0.25),
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offset: m.get("offset").and_then(Value::as_f64).unwrap_or(6.0),
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}
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}
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_ => Marks::NONE,
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};
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let standard = match str_param(p, "standard") {
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Some(s) => Standard::parse(s).ok_or_else(|| bad(ID, format!("unknown standard `{s}` (none, x4, a2b)")))?,
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None => Standard::None,
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};
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Ok(PdfOptions {
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pages,
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spreads,
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bleed,
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marks,
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standard,
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compress_images: p.get("compressImages").and_then(Value::as_bool).unwrap_or(false),
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title: str_param(p, "title").map(str::to_string),
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author: str_param(p, "author").map(str::to_string),
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tagged: p.get("tagged").and_then(Value::as_bool).unwrap_or(false),
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media: p.get("media").and_then(Value::as_bool).unwrap_or(false),
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..PdfOptions::default()
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})
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}
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/// Does this object (or anything in it) need the transparency flattener?
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fn transparent(it: &designcraft_doc::Item) -> bool {
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it.involves_transparency()
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}
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/// Transparency Flattener: each object involving transparency becomes an opaque image of its
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/// area as it looks over what's beneath it (so the rest stays vector); spreads whose parent items
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/// involve transparency are rasterised whole. Works on a copy of the document made for export.
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/// Returns the copy and the number of rasterised regions.
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fn flatten(d: &designcraft_doc::Document, cache: &designcraft_compose::Cache, ppi: f64) -> (designcraft_doc::Document, usize) {
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use designcraft_doc::{Asset, AssetId, Content, Graphic, Item, ItemId, Shape, SpreadRef};
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let mut out = d.clone();
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let mut n = 0;
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let mut rr = designcraft_render::Renderer::new();
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rr.threads = designcraft_render::default_threads();
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let k = ppi / 72.0;
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let parent_transparent = |pid: Option<designcraft_doc::SpreadId>| {
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pid.and_then(|id| d.parents.iter().find(|p| p.id == id)).is_some_and(|p| p.items.iter().any(|it| transparent(it)))
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};
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// An opaque image item showing `img` over `r`.
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let image_item =
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|out: &mut designcraft_doc::Document, r: designcraft_geom::Rect, img: designcraft_render::Rendered, layer: designcraft_doc::LayerId| {
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let (w, h) = (img.width, img.height);
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let aid = AssetId(out.alloc());
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out.assets.insert(
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aid,
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std::sync::Arc::new(Asset {
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page: 0,
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id: aid,
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name: format!("flattened-{}.png", aid.0),
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mime: "image/png".into(),
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link: None,
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data: std::sync::Arc::new(img.to_png()),
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pixels: Some((w, h)),
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}),
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);
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let mut it = Item::new(ItemId(out.alloc()), layer, Shape::Rectangle, designcraft_geom::shapes::rectangle(r));
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it.content = Content::Graphic(Graphic {
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asset: aid,
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size: (w as f64, h as f64),
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xf: designcraft_geom::Affine::translate((r.x0, r.y0))
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* designcraft_geom::Affine::scale_non_uniform(r.width() / w as f64, r.height() / h as f64),
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auto_fit: Default::default(),
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fit_align: 4,
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crop: [0.0; 4],
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});
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it.stroke.weight = 0.0;
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it
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};
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for (si, sp) in d.spreads.iter().enumerate() {
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let whole = sp.pages.iter().any(|pg| pg.show_parent_items && parent_transparent(pg.parent));
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if whole {
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// Parent items involve transparency: every page of the spread as one image.
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let first = d.first_page_of_spread(si);
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let lid = out.default_layer();
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let mut images = Vec::new();
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for (pi, pg) in sp.pages.iter().enumerate() {
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if let Some(img) = rr.render_page(d, cache, first + pi, k, false, &Default::default()) {
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images.push((pg.bounds(), img));
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}
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}
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let osp = std::sync::Arc::make_mut(&mut out.spreads[si]);
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osp.items.clear();
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for pg in &mut osp.pages {
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pg.show_parent_items = false;
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}
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for (b, img) in images {
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let it = image_item(&mut out, b, img, lid);
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let _ = out.insert_item(SpreadRef::Doc(si), it, None);
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n += 1;
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}
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continue;
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}
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// Region by region, bottom to top.
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for (idx, it) in sp.items.iter().enumerate() {
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if it.hidden || !transparent(it) {
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continue;
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}
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let reach = it.bounds().inflate(
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designcraft_render::effect_outset(it) + it.stroke.extent() + 1.0,
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designcraft_render::effect_outset(it) + it.stroke.extent() + 1.0,
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);
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// Only the part on the spread's pages and pasteboard that prints.
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let (w, h) = ((reach.width() * k).ceil().max(1.0) as u32, (reach.height() * k).ceil().max(1.0) as u32);
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if w as u64 * h as u64 > 80_000_000 {
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continue;
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}
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// The stack up to and including this object.
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let mut below = d.clone();
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std::sync::Arc::make_mut(&mut below.spreads[si]).items.truncate(idx + 1);
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let view = designcraft_geom::Affine::scale(k) * designcraft_geom::Affine::translate((-reach.x0, -reach.y0));
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let opts = designcraft_render::RenderOptions { printing_only: true, ..Default::default() };
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let img = rr.render(
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&below,
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cache,
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&[designcraft_render::Placed { spread: SpreadRef::Doc(si), xf: designcraft_geom::Affine::translate(designcraft_geom::Vec2::ZERO) }],
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w,
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h,
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view,
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&opts,
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);
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let new = image_item(&mut out, reach, img, it.layer);
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let osp = std::sync::Arc::make_mut(&mut out.spreads[si]);
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let Some(pos) = osp.items.iter().position(|x| x.id == it.id) else { continue };
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if threaded(d, it) {
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// Keep the frame (its story flows on) under the image.
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osp.items.insert(pos + 1, std::sync::Arc::new(new));
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} else {
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osp.items[pos] = std::sync::Arc::new(new);
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}
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n += 1;
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}
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}
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(out, n)
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}
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/// A text frame in a story that runs through other frames (replacing it would reflow the story).
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fn threaded(d: &designcraft_doc::Document, it: &designcraft_doc::Item) -> bool {
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it.text_frame().and_then(|t| d.story(t.story)).is_some_and(|st| st.frames.len() > 1)
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}
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/// Soft effects other than the gradient feather (which PDF export draws itself).
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fn raster_effects(it: &designcraft_doc::Item) -> bool {
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let e = &it.effects;
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// Knockout groups too: PDF output here has no knockout transparency groups.
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it.knockout
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|| e.drop_shadow.on
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|| e.feather > 0.0
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|| e.inner_shadow.on
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|| e.outer_glow.on
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|| e.inner_glow.on
|
||
|| e.bevel.on
|
||
|| e.satin.on
|
||
|| e.directional_feather.on
|
||
}
|
||
|
||
/// A copy of `d` where spread-level objects with soft effects are 300 ppi images of their whole
|
||
/// appearance (transparent around them, so they composite over what's behind).
|
||
fn rasterize_effects(d: &designcraft_doc::Document, cache: &designcraft_compose::Cache) -> (Option<designcraft_doc::Document>, usize) {
|
||
rasterize_where(d, cache, 300.0, |it| raster_effects(it) && !threaded(d, it))
|
||
}
|
||
|
||
/// A copy of `d` where the spread-level objects `pred` picks are images of their appearance at
|
||
/// `ppi` (transparent around them).
|
||
fn rasterize_where(
|
||
d: &designcraft_doc::Document,
|
||
cache: &designcraft_compose::Cache,
|
||
ppi: f64,
|
||
pred: impl Fn(&designcraft_doc::Item) -> bool,
|
||
) -> (Option<designcraft_doc::Document>, usize) {
|
||
use designcraft_doc::{Asset, AssetId, Content, Graphic, Item, ItemId, Shape, SpreadRef};
|
||
let todo: Vec<(usize, ItemId)> =
|
||
d.spreads.iter().enumerate().flat_map(|(si, sp)| sp.items.iter().filter(|it| !it.hidden && pred(it)).map(move |it| (si, it.id))).collect();
|
||
if todo.is_empty() {
|
||
return (None, 0);
|
||
}
|
||
let mut out = d.clone();
|
||
let mut rr = designcraft_render::Renderer::new();
|
||
rr.threads = designcraft_render::default_threads();
|
||
let k = ppi / 72.0;
|
||
let mut n = 0;
|
||
for (si, id) in todo {
|
||
let Some(it) = d.item(id) else { continue };
|
||
let reach = it.bounds().inflate(
|
||
designcraft_render::effect_outset(it) + it.stroke.extent() + 2.0,
|
||
designcraft_render::effect_outset(it) + it.stroke.extent() + 2.0,
|
||
);
|
||
// Just this object on its spread, no paper.
|
||
let mut solo = d.clone();
|
||
let sp = std::sync::Arc::make_mut(&mut solo.spreads[si]);
|
||
sp.items.retain(|x| x.id == id);
|
||
for pg in &mut sp.pages {
|
||
pg.show_parent_items = false;
|
||
}
|
||
let (w, h) = ((reach.width() * k).ceil().max(1.0) as u32, (reach.height() * k).ceil().max(1.0) as u32);
|
||
if w as u64 * h as u64 > 60_000_000 {
|
||
continue;
|
||
}
|
||
let view = designcraft_geom::Affine::scale(k) * designcraft_geom::Affine::translate((-reach.x0, -reach.y0));
|
||
let opts = designcraft_render::RenderOptions { paper: false, background: None, printing_only: true, ..Default::default() };
|
||
let img = rr.render(
|
||
&solo,
|
||
cache,
|
||
&[designcraft_render::Placed { spread: SpreadRef::Doc(si), xf: designcraft_geom::Affine::translate(designcraft_geom::Vec2::ZERO) }],
|
||
w,
|
||
h,
|
||
view,
|
||
&opts,
|
||
);
|
||
let aid = AssetId(out.alloc());
|
||
out.assets.insert(
|
||
aid,
|
||
std::sync::Arc::new(Asset {
|
||
page: 0,
|
||
id: aid,
|
||
name: format!("effects-{}.png", id.0),
|
||
mime: "image/png".into(),
|
||
link: None,
|
||
data: std::sync::Arc::new(img.to_png()),
|
||
pixels: Some((w, h)),
|
||
}),
|
||
);
|
||
let mut img_item = Item::new(ItemId(out.alloc()), it.layer, Shape::Rectangle, designcraft_geom::shapes::rectangle(reach));
|
||
img_item.content = Content::Graphic(Graphic {
|
||
asset: aid,
|
||
size: (w as f64, h as f64),
|
||
xf: designcraft_geom::Affine::translate((reach.x0, reach.y0)) * designcraft_geom::Affine::scale(1.0 / k),
|
||
auto_fit: Default::default(),
|
||
fit_align: 4,
|
||
crop: [0.0; 4],
|
||
});
|
||
img_item.stroke.weight = 0.0;
|
||
img_item.alt_text = it.alt_text.clone();
|
||
img_item.export_options = it.export_options.clone();
|
||
// Same place in the stacking order.
|
||
let osp = std::sync::Arc::make_mut(&mut out.spreads[si]);
|
||
if let Some(pos) = osp.items.iter().position(|x| x.id == id) {
|
||
osp.items[pos] = std::sync::Arc::new(img_item);
|
||
n += 1;
|
||
}
|
||
}
|
||
(Some(out), n)
|
||
}
|
||
|
||
/// A copy of `d` where placed PDFs with Object Layer Options hidden layers are 300 ppi images.
|
||
fn rasterize_layered(d: &designcraft_doc::Document) -> (Option<designcraft_doc::Document>, usize) {
|
||
let ids: Vec<designcraft_doc::ItemId> =
|
||
d.all_items().into_iter().filter(|id| d.item(*id).is_some_and(|it| !it.pdf_hidden_layers.is_empty() && it.graphic().is_some())).collect();
|
||
if ids.is_empty() {
|
||
return (None, 0);
|
||
}
|
||
let mut out = d.clone();
|
||
let mut n = 0;
|
||
for id in ids {
|
||
let Some((g, hidden)) = out.item(id).and_then(|it| Some((it.graphic()?.clone(), it.pdf_hidden_layers.clone()))) else { continue };
|
||
let Some(a) = out.assets.get(&g.asset).cloned() else { continue };
|
||
if !designcraft_render::is_pdf(&a.data) {
|
||
continue;
|
||
}
|
||
let side = (g.size.0.max(g.size.1) * 300.0 / 72.0).clamp(64.0, 8000.0) as u32;
|
||
let Some(png) = designcraft_render::pdf_page_png(&a.data, a.page as usize, side, &hidden) else { continue };
|
||
let px = designcraft_render::image_size(&png);
|
||
let aid = designcraft_doc::AssetId(out.alloc());
|
||
out.assets.insert(
|
||
aid,
|
||
std::sync::Arc::new(designcraft_doc::Asset {
|
||
page: 0,
|
||
id: aid,
|
||
name: format!("{}.png", a.name),
|
||
mime: "image/png".into(),
|
||
link: None,
|
||
data: std::sync::Arc::new(png),
|
||
pixels: px,
|
||
}),
|
||
);
|
||
if let Some(designcraft_doc::Content::Graphic(gg)) = out.item_mut(id).map(|it| &mut it.content) {
|
||
gg.asset = aid;
|
||
}
|
||
n += 1;
|
||
}
|
||
(Some(out), n)
|
||
}
|
||
|
||
/// Object number of the first page of a PDF (its page tree's first kid).
|
||
fn first_page_ref(pdf: &[u8]) -> Option<usize> {
|
||
let s = String::from_utf8_lossy(pdf);
|
||
let i = s.find("/Kids[")? + 6;
|
||
s[i..].split_whitespace().next()?.parse().ok()
|
||
}
|
||
|
||
fn export_pdf(s: &mut Session, p: &Value) -> Result<Value> {
|
||
let st = s.doc()?;
|
||
let opts = options(p, st.doc.page_count())?;
|
||
// Transparency Flattener presets: High / Medium / Low Resolution, or a ppi.
|
||
let ppi = match p.get("flatten") {
|
||
None | Some(Value::Null) | Some(Value::Bool(false)) => None,
|
||
Some(Value::String(s)) if s == "high" => Some(300.0),
|
||
Some(Value::String(s)) if s == "medium" => Some(150.0),
|
||
Some(Value::String(s)) if s == "low" => Some(72.0),
|
||
Some(Value::Bool(true)) => Some(300.0),
|
||
Some(v) => Some(
|
||
v.as_f64().filter(|v| (36.0..=1200.0).contains(v)).ok_or_else(|| bad("file.exportPdf", "`flatten`: high|medium|low or 36–1200 ppi"))?,
|
||
),
|
||
};
|
||
let flattened = ppi.map(|ppi| flatten(&st.doc, &s.cache, ppi));
|
||
// Placed PDFs with hidden layers go out as images showing just their visible layers.
|
||
let base: &designcraft_doc::Document = flattened.as_ref().map_or(&st.doc, |f| &f.0);
|
||
let (layered, layer_count) = rasterize_layered(base);
|
||
let base2: &designcraft_doc::Document = layered.as_ref().unwrap_or(base);
|
||
let (fx_doc, fx_count) = rasterize_effects(base2, &s.cache);
|
||
let doc: &designcraft_doc::Document = fx_doc.as_ref().unwrap_or(base2);
|
||
let r = designcraft_pdf::export_pdf_with_report(doc, &s.cache, &opts).map_err(|e| EngineError::Other(e.to_string()))?;
|
||
let mut r = r;
|
||
// Transparency Blend Space: the page group of pages with transparency.
|
||
let spreads = designcraft_pdf::sheet_spreads(doc, &opts);
|
||
let blended: Vec<bool> = spreads.iter().map(|si| doc.spreads.get(*si).is_some_and(|sp| sp.items.iter().any(|it| transparent(it)))).collect();
|
||
if blended.iter().any(|b| *b) {
|
||
match designcraft_pdf::add_blend_space(&r.bytes, &blended, doc.settings.blend_space == designcraft_doc::BlendSpace::Cmyk) {
|
||
Some(b) => r.bytes = b,
|
||
None => r.warnings.push("the transparency blend space couldn't be set".into()),
|
||
}
|
||
}
|
||
// Interactive PDF view options.
|
||
let mut cat = String::new();
|
||
if p.get("fullScreen").and_then(Value::as_bool) == Some(true) {
|
||
cat.push_str("/PageMode/FullScreen");
|
||
} else if p.get("bookmarksPanel").and_then(Value::as_bool) == Some(true) {
|
||
cat.push_str("/PageMode/UseOutlines");
|
||
}
|
||
match str_param(p, "pageLayout") {
|
||
Some("single") => cat.push_str("/PageLayout/SinglePage"),
|
||
Some("continuous") => cat.push_str("/PageLayout/OneColumn"),
|
||
Some("twoUp") => cat.push_str("/PageLayout/TwoPageLeft"),
|
||
Some("twoUpCover") => cat.push_str("/PageLayout/TwoPageRight"),
|
||
Some("twoUpContinuous") => cat.push_str("/PageLayout/TwoColumnRight"),
|
||
Some(o) => return Err(bad("file.exportPdf", format!("unknown pageLayout `{o}`"))),
|
||
None => {}
|
||
}
|
||
if let Some(v) = str_param(p, "view") {
|
||
// The first page opens with this view (pages are objects in order, so refer by index 0).
|
||
let dest = match v {
|
||
"fitPage" => "/Fit",
|
||
"fitWidth" => "/FitH null",
|
||
"actual" => "/XYZ null null 1",
|
||
o => return Err(bad("file.exportPdf", format!("unknown view `{o}` (fitPage, fitWidth, actual)"))),
|
||
};
|
||
if let Some(first) = first_page_ref(&r.bytes) {
|
||
cat.push_str(&format!("/OpenAction[{first} 0 R{dest}]"));
|
||
}
|
||
}
|
||
if !cat.is_empty() {
|
||
match designcraft_pdf::add_catalog_entries(&r.bytes, &cat) {
|
||
Some(b) => r.bytes = b,
|
||
None => r.warnings.push("the PDF view options couldn't be set".into()),
|
||
}
|
||
}
|
||
// Flip pages every N seconds (presentation).
|
||
if let Some(secs) = p.get("advanceSeconds").and_then(Value::as_f64).filter(|s| *s > 0.0) {
|
||
let n = designcraft_pdf::sheet_spreads(doc, &opts).len();
|
||
let dur: Vec<Option<String>> = (0..n).map(|_| Some(format!("/Dur {secs:.2}"))).collect();
|
||
match designcraft_pdf::add_page_entries(&r.bytes, &dur) {
|
||
Some(b) => r.bytes = b,
|
||
None => r.warnings.push("page timings couldn't be set".into()),
|
||
}
|
||
}
|
||
// Page transitions (each spread's first page holds them).
|
||
let trans: Vec<Option<designcraft_doc::PageTransition>> =
|
||
spreads.into_iter().map(|si| doc.spreads.get(si).and_then(|sp| sp.pages.first()).and_then(|pg| pg.transition)).collect();
|
||
if trans.iter().any(Option::is_some) {
|
||
match designcraft_pdf::add_transitions(&r.bytes, &trans) {
|
||
Some(b) => r.bytes = b,
|
||
None => r.warnings.push("page transitions couldn't be added to this PDF".into()),
|
||
}
|
||
}
|
||
if fx_count > 0 {
|
||
r.warnings.push(format!("{fx_count} object(s) with soft effects (shadows, glows, feathers, bevels) or knockout groups exported as images"));
|
||
}
|
||
if layer_count > 0 {
|
||
r.warnings.push(format!("{layer_count} placed PDF(s) with hidden layers exported as images"));
|
||
}
|
||
if let Some((_, n)) = &flattened
|
||
&& *n > 0
|
||
{
|
||
r.warnings.push(format!("transparency flattened: {n} region(s) rasterised"));
|
||
}
|
||
match str_param(p, "path") {
|
||
Some(path) => {
|
||
write_file(path, &r.bytes)?;
|
||
Ok(json!({"path": path, "bytes": r.bytes.len(), "pages": r.pages, "warnings": r.warnings}))
|
||
}
|
||
None => Ok(json!({"base64": super::base64_encode(&r.bytes), "bytes": r.bytes.len(), "pages": r.pages, "warnings": r.warnings})),
|
||
}
|
||
}
|
||
|
||
#[cfg(not(target_arch = "wasm32"))]
|
||
fn write_file(path: &str, bytes: &[u8]) -> Result<()> {
|
||
crate::atomic::write_file(path, bytes)
|
||
}
|
||
#[cfg(target_arch = "wasm32")]
|
||
fn write_file(path: &str, _bytes: &[u8]) -> Result<()> {
|
||
Err(EngineError::Other(format!("{path}: no file system on the web; omit `path` to get the bytes")))
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod text_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
|
||
fn unzip(b64: &str) -> zip::ZipArchive<std::io::Cursor<Vec<u8>>> {
|
||
zip::ZipArchive::new(std::io::Cursor::new(super::super::file::base64_decode(b64))).unwrap()
|
||
}
|
||
|
||
fn read(z: &mut zip::ZipArchive<std::io::Cursor<Vec<u8>>>, name: &str) -> String {
|
||
let mut s = String::new();
|
||
std::io::Read::read_to_string(&mut z.by_name(name).unwrap(), &mut s).unwrap();
|
||
s
|
||
}
|
||
|
||
#[test]
|
||
fn object_export_options() {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
// A plain rectangle rasterised for EPUB, centred, after a page break.
|
||
let r = s.execute("frame.create", &json!({"rect": [72, 72, 200, 200], "shape": "ellipse"})).unwrap();
|
||
s.execute("object.fill", &json!({"swatch": "[Black]", "ids": [r["id"]]})).unwrap();
|
||
s.execute(
|
||
"object.exportOptions",
|
||
&json!({"ids": [r["id"]], "rasterize": true, "align": "center", "pageBreakBefore": true, "altText": "A dot"}),
|
||
)
|
||
.unwrap();
|
||
let e = s.execute("file.exportEpub", &json!({})).unwrap();
|
||
let mut z = unzip(e["base64"].as_str().unwrap());
|
||
let x = read(&mut z, "OEBPS/content.xhtml");
|
||
assert!(
|
||
x.contains("<figure style=\"text-align:center;page-break-before:always;break-before:page;\"><img") && x.contains("alt=\"A dot\""),
|
||
"{x}"
|
||
);
|
||
// Tagged PDF: an artifact object adds no figure.
|
||
let pdf = |s: &mut Session| {
|
||
String::from_utf8_lossy(&super::super::file::base64_decode(
|
||
s.execute("file.exportPdf", &json!({"tagged": true})).unwrap()["base64"].as_str().unwrap(),
|
||
))
|
||
.matches("/S/Figure")
|
||
.count()
|
||
};
|
||
let figures = pdf(&mut s);
|
||
s.execute("object.exportOptions", &json!({"ids": [r["id"]], "artifact": true})).unwrap();
|
||
assert!(pdf(&mut s) < figures);
|
||
}
|
||
|
||
#[test]
|
||
fn epub_cover_and_fixed_layout() {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({"pages": 2})).unwrap();
|
||
s.execute("frame.create", &json!({"rect": [72, 72, 400, 200], "content": "text", "text": "Page one words", "caret": false})).unwrap();
|
||
let r = s.execute("file.exportEpub", &json!({"cover": true})).unwrap();
|
||
let mut z = unzip(r["base64"].as_str().unwrap());
|
||
let opf = read(&mut z, "OEBPS/content.opf");
|
||
assert!(opf.contains("cover-image") && opf.contains("<itemref idref=\"cover\"/>"));
|
||
assert!(z.by_name("OEBPS/images/cover.png").is_ok());
|
||
let r = s.execute("file.exportFixedEpub", &json!({})).unwrap();
|
||
assert_eq!(r["pages"], 2);
|
||
let mut z = unzip(r["base64"].as_str().unwrap());
|
||
let opf = read(&mut z, "OEBPS/content.opf");
|
||
assert!(opf.contains("rendition:layout\">pre-paginated") && opf.contains("page2.xhtml"));
|
||
let p1 = read(&mut z, "OEBPS/page1.xhtml");
|
||
assert!(p1.contains("width=612, height=792") && p1.contains("Page one words"), "{p1}");
|
||
}
|
||
|
||
#[test]
|
||
fn flattener_rasterises_spreads_with_transparency() {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({"pages": 3})).unwrap();
|
||
let id = s.execute("frame.create", &json!({"rect": [100, 100, 300, 300]})).unwrap()["id"].clone();
|
||
s.execute("object.fill", &json!({"swatch": "[Black]", "ids": [id]})).unwrap();
|
||
// Opaque: nothing to flatten.
|
||
let r = s.execute("file.exportPdf", &json!({"flatten": "low"})).unwrap();
|
||
assert!(r["warnings"].as_array().unwrap().iter().all(|w| !w.as_str().unwrap().contains("flattened")));
|
||
s.execute("object.opacity", &json!({"ids": [id], "opacity": 0.5})).unwrap();
|
||
// Text away from the transparency stays live text.
|
||
s.execute("frame.create", &json!({"rect": [72, 400, 400, 450], "content": "text", "text": "Still vector", "caret": false})).unwrap();
|
||
let r = s.execute("file.exportPdf", &json!({"flatten": "low"})).unwrap();
|
||
let pdf = super::super::file::base64_decode(r["base64"].as_str().unwrap());
|
||
assert!(String::from_utf8_lossy(&pdf).contains("/FontFile"), "the text is still text");
|
||
assert!(r["warnings"].as_array().unwrap().iter().any(|w| w.as_str().unwrap().contains("flattened: 1 ")), "{r}");
|
||
assert_eq!(r["pages"], 3);
|
||
let bytes = super::super::file::base64_decode(r["base64"].as_str().unwrap());
|
||
assert_eq!(designcraft_render::pdf_page_count(&bytes), Some(3));
|
||
// The document itself is untouched.
|
||
assert!(s.doc().unwrap().doc.item(designcraft_doc::ItemId(id.as_u64().unwrap())).is_some());
|
||
assert!(s.execute("file.exportPdf", &json!({"flatten": 5})).is_err());
|
||
// Interactive view options land in the catalog and on the pages.
|
||
let r = s.execute("file.exportPdf", &json!({"fullScreen": true, "pageLayout": "single", "view": "fitPage", "advanceSeconds": 5})).unwrap();
|
||
let t = String::from_utf8_lossy(&super::super::file::base64_decode(r["base64"].as_str().unwrap())).to_string();
|
||
assert!(
|
||
t.contains("/PageMode/FullScreen") && t.contains("/PageLayout/SinglePage") && t.contains("/OpenAction[") && t.contains("/Dur 5.00"),
|
||
"view options"
|
||
);
|
||
assert!(s.execute("file.exportPdf", &json!({"pageLayout": "sideways"})).is_err());
|
||
// Unflattened, the page blends in the document's blend space (CMYK for print).
|
||
let r = s.execute("file.exportPdf", &json!({})).unwrap();
|
||
let text = String::from_utf8_lossy(&super::super::file::base64_decode(r["base64"].as_str().unwrap())).to_string();
|
||
assert_eq!(text.matches("/S/Transparency/CS/DeviceCMYK").count(), 1, "only the page with transparency");
|
||
}
|
||
|
||
#[test]
|
||
fn export_story_as_text_and_rtf() {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
let r = s.execute("frame.create", &json!({"rect": [72, 72, 400, 300], "content": "text", "text": "One\nTwo"})).unwrap();
|
||
assert!(s.execute("file.exportText", &json!({"frame": r["id"]})).unwrap()["text"] == "One\r\nTwo");
|
||
let html = s.execute("file.exportHtml", &json!({})).unwrap();
|
||
assert!(html["text"].as_str().unwrap().contains("One</p>"));
|
||
let tagged = s.execute("file.exportText", &json!({"frame": r["id"], "format": "tagged"})).unwrap();
|
||
assert!(tagged["text"].as_str().unwrap().contains("<ParaStyle:"));
|
||
let rtf = s.execute("file.exportText", &json!({"frame": r["id"], "format": "rtf"})).unwrap();
|
||
assert!(rtf["text"].as_str().unwrap().starts_with("{\\rtf1"));
|
||
let dir = std::env::temp_dir().join(format!("dc-export-text-{}", std::process::id()));
|
||
std::fs::create_dir_all(&dir).unwrap();
|
||
let path = dir.join("story.rtf");
|
||
s.execute("file.exportText", &json!({"frame": r["id"], "path": path.to_string_lossy()})).unwrap();
|
||
assert!(std::fs::read_to_string(&path).unwrap().starts_with("{\\rtf1"));
|
||
std::fs::remove_dir_all(&dir).ok();
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod tagged_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
|
||
#[test]
|
||
fn tagged_pdf_has_structure_and_alt_text() {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
s.execute("frame.create", &json!({"rect": [72, 72, 400, 300], "content": "text", "text": "Hello"})).unwrap();
|
||
let r = s.execute("frame.create", &json!({"rect": [72, 320, 200, 420]})).unwrap();
|
||
s.execute("object.altText", &json!({"text": "A plain box", "ids": [r["id"]]})).unwrap();
|
||
let pdf = |s: &mut Session, tagged: bool| {
|
||
let b64 = s.execute("file.exportPdf", &json!({"tagged": tagged})).unwrap()["base64"].as_str().unwrap().to_string();
|
||
String::from_utf8_lossy(&super::super::file::base64_decode(&b64)).into_owned()
|
||
};
|
||
let t = pdf(&mut s, true);
|
||
assert!(t.contains("/StructTreeRoot") && t.contains("/Figure") && t.contains("A plain box"), "tagged");
|
||
assert!(t.contains("/P") && t.contains("/MarkInfo"));
|
||
assert!(!pdf(&mut s, false).contains("/StructTreeRoot"));
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod variable_font_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
|
||
#[test]
|
||
fn variable_font_instance_exports_to_pdf() {
|
||
let Ok(data) = std::fs::read("/System/Library/Fonts/Supplemental/Skia.ttf") else { return };
|
||
designcraft_fonts::FontDb::global().add_font(data);
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
let r = s.execute("frame.create", &json!({"rect": [72, 72, 400, 300], "content": "text", "text": "Variable"})).unwrap();
|
||
s.execute("text.select", &json!({"story": r["story"], "anchor": 0, "focus": 8})).unwrap();
|
||
s.execute("type.char", &json!({"fontFamily": "Skia", "fontStyle": "Black"})).unwrap();
|
||
let out = s.execute("file.exportPdf", &json!({})).unwrap();
|
||
assert!(out["bytes"].as_u64().unwrap() > 1000);
|
||
let fonts = s.execute("font.list", &json!({})).unwrap();
|
||
assert!(fonts.to_string().contains("Black"), "{fonts}");
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod booklet_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
|
||
#[test]
|
||
fn booklet_imposes_pages_in_pairs() {
|
||
use designcraft_pdf::{BookletKind, booklet_pairs};
|
||
assert_eq!(booklet_pairs(8, BookletKind::SaddleStitch), [(Some(7), Some(0)), (Some(1), Some(6)), (Some(5), Some(2)), (Some(3), Some(4))]);
|
||
assert_eq!(booklet_pairs(6, BookletKind::SaddleStitch)[0], (None, Some(0)), "padded with blanks");
|
||
assert_eq!(booklet_pairs(3, BookletKind::TwoUpConsecutive), [(Some(0), Some(1)), (Some(2), None)]);
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({"pages": 4})).unwrap();
|
||
let r = s.execute("file.printBooklet", &json!({"spaceBetween": 18})).unwrap();
|
||
assert_eq!(r["sheets"], 2);
|
||
let pdf = String::from_utf8_lossy(&super::super::file::base64_decode(r["base64"].as_str().unwrap())).into_owned();
|
||
let mb = pdf.find("/MediaBox").map(|i| pdf[i..i + 40].to_string()).unwrap_or_default();
|
||
assert!(mb.contains("1242"), "two 612 pt pages and an 18 pt gap: {mb}");
|
||
assert!(s.execute("file.printBooklet", &json!({"type": "perfectBound"})).is_err());
|
||
// Page 1's black box lands on the right half of the first sheet (page 4 is on the left).
|
||
let id = s.execute("frame.create", &json!({"rect": [100, 100, 300, 300]})).unwrap()["id"].clone();
|
||
s.execute("object.fill", &json!({"swatch": "[Black]", "ids": [id]})).unwrap();
|
||
let r = s.execute("file.printBooklet", &json!({})).unwrap();
|
||
let bytes = super::super::file::base64_decode(r["base64"].as_str().unwrap());
|
||
let px = designcraft_render::decode_pixmap_page(&bytes, 0).expect("rasterised");
|
||
let (w, h) = (px.width() as f64, px.height() as f64);
|
||
let at = |x: f64, y: f64| px.sample((x / 1224.0 * w) as u16, (y / 792.0 * h) as u16);
|
||
let (ink, blank) = (at(612.0 + 200.0, 200.0), at(200.0, 200.0));
|
||
assert!(ink.a > 200 && ink.r < 60, "right half has page 1: {ink:?}");
|
||
assert!(blank.a < 30 || blank.r > 200, "left half (page 4) is empty: {blank:?}");
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod placed_pdf_print_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
use crate::cmd::{base64_decode, base64_encode};
|
||
|
||
/// A one-page PDF 1.7 with a black box, as VectorCraft writes a logo.
|
||
fn logo() -> Vec<u8> {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({"width": 100, "height": 50})).unwrap();
|
||
s.execute("frame.create", &json!({"rect": [10, 10, 90, 40]})).unwrap();
|
||
s.execute("object.fill", &json!({"swatch": "[Black]"})).unwrap();
|
||
let r = s.execute("file.exportPdf", &json!({})).unwrap();
|
||
base64_decode(r["base64"].as_str().unwrap())
|
||
}
|
||
|
||
fn page_with(pdf: &[u8]) -> Session {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
s.execute("file.place", &json!({"base64": base64_encode(pdf), "name": "logo.pdf", "x": 72, "y": 72})).unwrap();
|
||
s
|
||
}
|
||
|
||
/// A placed PDF 1.7 failed the PDF/X-4 (PDF 1.6) export with
|
||
/// "PDF writer error: Pdf(PdfDocument(PdfDocumentRepr { .. }), VersionMismatch(Pdf17), None)".
|
||
#[test]
|
||
fn pdf_17_placed_in_pdfx4() {
|
||
let logo = logo();
|
||
assert!(logo.starts_with(b"%PDF-1.7"));
|
||
let mut s = page_with(&logo);
|
||
let r = s.execute("file.exportPdf", &json!({"standard": "x4"})).unwrap();
|
||
assert!(r["warnings"].to_string().contains("logo.pdf: a PDF 1.7 placed in a PDF 1.6 file"), "{}", r["warnings"]);
|
||
assert!(base64_decode(r["base64"].as_str().unwrap()).starts_with(b"%PDF-1.6"));
|
||
// PDF 2.0 can't simply be relabelled: the export fails and names the file.
|
||
let mut v20 = logo.clone();
|
||
v20[5..8].copy_from_slice(b"2.0");
|
||
let mut s = page_with(&v20);
|
||
let e = s.execute("file.exportPdf", &json!({"standard": "x4"})).unwrap_err().to_string();
|
||
assert!(e.contains("logo.pdf is PDF 2.0") && e.contains("PDF 1.6"), "{e}");
|
||
}
|
||
}
|
||
|
||
#[cfg(test)]
|
||
mod print_group_tests {
|
||
use serde_json::json;
|
||
|
||
use crate::Session;
|
||
use crate::cmd::{base64_decode, base64_encode};
|
||
|
||
/// A one-page PDF 1.7 with a black box, as VectorCraft writes a logo.
|
||
fn logo() -> Vec<u8> {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({"width": 100, "height": 50})).unwrap();
|
||
s.execute("frame.create", &json!({"rect": [10, 10, 90, 40]})).unwrap();
|
||
s.execute("object.fill", &json!({"swatch": "[Black]"})).unwrap();
|
||
let r = s.execute("file.exportPdf", &json!({})).unwrap();
|
||
base64_decode(r["base64"].as_str().unwrap())
|
||
}
|
||
|
||
fn page_with(pdf: &[u8]) -> Session {
|
||
let mut s = Session::new();
|
||
s.execute("file.new", &json!({})).unwrap();
|
||
s.execute("file.place", &json!({"base64": base64_encode(pdf), "name": "logo.pdf", "x": 72, "y": 72})).unwrap();
|
||
s
|
||
}
|
||
|
||
/// The placed PDF's transparency group blended in DeviceRGB in a print document
|
||
/// (`/Group<</Type/Group/S/Transparency/I true/CS/DeviceRGB>>`).
|
||
#[test]
|
||
fn print_transparency_groups_blend_in_cmyk() {
|
||
let mut s = page_with(&logo());
|
||
let text = |s: &mut Session| {
|
||
let r = s.execute("file.exportPdf", &json!({"compress": false})).unwrap();
|
||
String::from_utf8_lossy(&base64_decode(r["base64"].as_str().unwrap())).into_owned()
|
||
};
|
||
let t = text(&mut s);
|
||
assert!(t.contains("/S/Transparency/I true/CS/DeviceCMYK>>"), "CMYK group");
|
||
assert!(!t.contains("DeviceRGB"), "no RGB left");
|
||
assert!(!designcraft_pdf::has_rgb_groups(t.as_bytes()));
|
||
// The file still reads, with the same page.
|
||
let r = s.execute("file.exportPdf", &json!({})).unwrap();
|
||
let bytes = base64_decode(r["base64"].as_str().unwrap());
|
||
assert_eq!(hayro_syntax::Pdf::new(bytes).unwrap().pages().len(), 1);
|
||
// An RGB blend space keeps RGB groups.
|
||
s.execute("edit.transparencyBlendSpace", &json!({"space": "rgb"})).unwrap();
|
||
let t = text(&mut s);
|
||
assert!(t.contains("/CS/DeviceRGB") && designcraft_pdf::has_rgb_groups(t.as_bytes()));
|
||
}
|
||
}
|