mirror of
https://github.com/storytold/deckcraft.git
synced 2026-10-26 19:46:58 -06:00
612 lines
30 KiB
Rust
612 lines
30 KiB
Rust
use std::sync::Arc;
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use std::collections::HashMap;
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use deckcraft_fonts::FontDb;
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use deckcraft_render::RenderOpts;
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use kurbo::Rect;
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use super::{
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MAX_RASTER_PIXELS, PAPERS, PageLayout, PdfError, PdfOptions, Presentation, export, glyph_text_ranges, handout_boxes, master_text_pieces,
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master_texts, notes_frames, notes_slide_box, paper_size, raster_scale,
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};
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use deckcraft_model::text::TextBody;
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fn deck(n: usize) -> Presentation {
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let mut p = deckcraft_model::defaults::new_presentation(None);
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let layout = p.slides[0].layout;
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while p.slides.len() < n {
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let s = deckcraft_model::defaults::new_slide(&mut p, layout).expect("slide");
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p.slides.push(Arc::new(s));
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}
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for (i, s) in p.slides.iter_mut().enumerate() {
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let s = Arc::make_mut(s);
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if let Some(sh) = s.shapes.first_mut() {
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sh.text = Some(TextBody::from_text(&format!("Slide title {i}")));
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}
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s.notes = TextBody::from_text("Speaker notes that wrap across the page width to test line breaking of long notes.");
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}
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p
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}
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fn opts(layout: PageLayout) -> PdfOptions {
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PdfOptions { layout, dpi: 48.0, ..Default::default() }
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn exports_slides_notes_and_handouts() {
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let p = deck(5);
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for layout in [PageLayout::Slides, PageLayout::Notes, PageLayout::Handouts { per_page: 3 }, PageLayout::Handouts { per_page: 6 }] {
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let bytes = export(&p, &opts(layout)).expect("export");
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assert!(bytes.starts_with(b"%PDF-"), "{layout:?}");
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assert!(bytes.len() > 1000);
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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let (pages, size) = match layout {
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PageLayout::Slides => (5, (960.0, 540.0)),
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PageLayout::Notes => (5, (612.0, 792.0)),
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PageLayout::Handouts { per_page: 3 } => (2, (612.0, 792.0)),
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_ => (1, (612.0, 792.0)),
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};
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assert_eq!(pdf.pages().len(), pages);
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assert!(pdf.pages().iter().all(|page| page.render_dimensions() == size));
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}
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn empty_range_is_an_error() {
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let p = deck(1);
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let o = PdfOptions { slides: Some(vec![7]), ..opts(PageLayout::Slides) };
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assert!(matches!(export(&p, &o), Err(PdfError::NoPages)));
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn hidden_slides_skipped_unless_asked() {
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let mut p = deck(2);
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Arc::make_mut(&mut p.slides[1]).hidden = true;
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let a = export(&p, &opts(PageLayout::Slides)).unwrap();
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let b = export(&p, &PdfOptions { include_hidden: true, ..opts(PageLayout::Slides) }).unwrap();
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assert_eq!(hayro_syntax::Pdf::new(a.clone()).unwrap().pages().len(), 1);
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assert_eq!(hayro_syntax::Pdf::new(b.clone()).unwrap().pages().len(), 2);
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let ranged = export(&p, &PdfOptions { slides: Some(vec![1, 0, 9]), ..opts(PageLayout::Slides) }).unwrap();
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assert_eq!(hayro_syntax::Pdf::new(ranged.clone()).unwrap().pages().len(), 2);
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn handout_boxes_fit_the_paper() {
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for n in [1, 2, 3, 4, 6, 9] {
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let v = handout_boxes(n, (612.0, 792.0), 16.0 / 9.0);
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assert_eq!(v.len(), n as usize);
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for r in &v {
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assert!(r.x0 >= 0.0 && r.y0 >= 0.0 && r.x1 <= 612.0 && r.y1 <= 792.0, "{n}: {r:?}");
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assert!((r.width() / r.height() - 16.0 / 9.0).abs() < 1e-6);
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}
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for (i, a) in v.iter().enumerate() {
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for b in &v[i + 1..] {
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assert!(a.intersect(*b).area() <= 0.0, "{n}: overlap");
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}
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}
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}
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn metadata_retains_values_and_omits_blank_fields() {
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let mut p = deck(1);
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p.props.title = " Deck title ".into();
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p.props.author = " Author ".into();
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let bytes = export(&p, &opts(PageLayout::Slides)).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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assert_eq!(pdf.metadata().title.as_deref(), Some(b" Deck title ".as_slice()));
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assert_eq!(pdf.metadata().author.as_deref(), Some(b" Author ".as_slice()));
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assert_eq!(pdf.metadata().creator.as_deref(), Some(b"DeckCraft".as_slice()));
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assert_eq!(pdf.metadata().producer.as_deref(), Some(b"DeckCraft".as_slice()));
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assert!(pdf.metadata().creation_date.is_none());
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p.props.author = " ".into();
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let bytes = export(&p, &PdfOptions { title: Some(" ".into()), ..opts(PageLayout::Slides) }).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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assert!(pdf.metadata().title.is_none());
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assert!(pdf.metadata().author.is_none());
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn text_layer_links_and_bookmarks_survive_serialization() {
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use deckcraft_model::text::{Action, Hyperlink};
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use hayro_syntax::object::{Array, Dict};
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let mut p = deck(2);
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let last = p.slides[1].id;
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let slide = Arc::make_mut(&mut p.slides[0]);
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for (shape, action) in slide.shapes.iter_mut().zip([Action::Url { url: "https://example.com/deck".into() }, Action::Slide { slide: last }]) {
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shape.click = Some(Hyperlink { action, tooltip: "Link".into(), highlight_click: false, sound: None, stop_sound: false, zoom_return: None });
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}
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for text_layer in [true, false] {
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let bytes = export(&p, &PdfOptions { text_layer, ..opts(PageLayout::Slides) }).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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let page = &pdf.pages()[0];
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let annotations = page.raw().get::<Array<'_>>(b"Annots").unwrap();
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assert_eq!(annotations.iter::<Dict<'_>>().count(), 2);
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let resources = page.raw().get::<Dict<'_>>(b"Resources").unwrap();
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let fonts = resources.get::<Dict<'_>>(b"Font");
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assert_eq!(fonts.is_some_and(|fonts| !fonts.is_empty()), text_layer);
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let catalog = pdf.xref().get::<Dict<'_>>(pdf.xref().root_id()).unwrap();
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let outlines = catalog.get::<Dict<'_>>(b"Outlines").unwrap();
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let first = outlines.get::<Dict<'_>>(b"First").unwrap();
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assert!(first.get::<Dict<'_>>(b"Next").is_some());
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}
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}
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/// Links from an untrusted deck: only web and mail links become PDF links. Scripts, `data:`,
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/// local and relative files, OS protocol handlers and network shares (a UNC path leaks the user's
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/// NTLM credentials on Windows) do not.
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn unsafe_url_links_are_not_exported() {
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use deckcraft_model::text::{Action, Hyperlink};
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use deckcraft_model::{Shape, ShapeId, Xfrm};
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use hayro_syntax::object::{Array, Dict, String as PdfString};
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let safe = ["https://example.com/deck", "mailto:someone@example.com"];
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let refused = [
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"file:///C:/talks/notes.pdf",
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"notes.pdf",
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"ms-msdt:/id PCWDiagnostic /skip force",
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"ms-word:ofe|u|\\\\attacker.example\\share\\x.docx",
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"ldap://attacker.example/x",
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"file:///%5C%5Cattacker.example/share/x",
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"javascript:alert(1)",
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"\t JavaScript:alert(1)",
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"java\nscript:alert(1)",
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"vbscript:MsgBox(1)",
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"data:text/html,<script>alert(1)</script>",
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"\\\\attacker.example\\share\\x",
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"//attacker.example/share/x",
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"file://attacker.example/share/x",
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"file:////attacker.example/share/x",
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"smb://attacker.example/share/x",
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"search-ms:query=x&crumb=location:\\\\attacker.example\\share",
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"search:query=x&crumb=location:\\\\attacker.example\\share",
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];
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let mut p = deck(1);
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let slide = Arc::make_mut(&mut p.slides[0]);
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slide.shapes = (0..)
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.zip(safe.iter().chain(&refused))
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.map(|(i, url)| Shape {
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id: ShapeId(9000 + i),
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xfrm: Some(Xfrm::new(20.0, 20.0 + 32.0 * f64::from(i), 400.0, 26.0)),
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click: Some(Hyperlink {
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action: Action::Url { url: url.to_string() },
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tooltip: String::new(),
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highlight_click: false,
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sound: None,
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stop_sound: false,
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zoom_return: None,
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}),
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..Default::default()
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})
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.collect();
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let bytes = export(&p, &opts(PageLayout::Slides)).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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let annotations = pdf.pages()[0].raw().get::<Array<'_>>(b"Annots").unwrap();
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let uris: Vec<String> = annotations
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.iter::<Dict<'_>>()
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.filter_map(|a| a.get::<Dict<'_>>(b"A")?.get::<PdfString<'_>>(b"URI"))
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.map(|s| String::from_utf8_lossy(s.as_bytes()).into_owned())
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.collect();
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assert_eq!(uris, safe);
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}
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/// Build a small damaged derivative of our openly licensed last-resort font entirely in
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/// memory. Its naming/shaping tables still parse, but its missing head table prevents PDF
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/// embedding. No font bytes or vendor assets are stored as test fixtures.
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fn font_without_head() -> Vec<u8> {
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let mut bytes = FontDb::global().face("Ubuntu", "Regular").data().to_vec();
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for (old, new) in [(b"Ubuntu".as_slice(), b"BadPDF".as_slice()), (b"\0U\0b\0u\0n\0t\0u".as_slice(), b"\0B\0a\0d\0P\0D\0F".as_slice())] {
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let mut offset = 0;
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while offset + old.len() <= bytes.len() {
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if bytes[offset..offset + old.len()] == *old {
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bytes[offset..offset + old.len()].copy_from_slice(new);
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offset += old.len();
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} else {
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offset += 1;
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}
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}
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}
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let tables = u16::from_be_bytes([bytes[4], bytes[5]]) as usize;
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for i in 0..tables {
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let offset = 12 + i * 16;
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if &bytes[offset..offset + 4] == b"head" {
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bytes[offset..offset + 4].copy_from_slice(b"zzzz");
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}
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}
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bytes
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn unembeddable_font_returns_error_instead_of_a_pdf_missing_text() {
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use deckcraft_model::{Shape, ShapeId, Xfrm};
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let db = FontDb::global();
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assert_eq!(db.add_font(font_without_head()), 1);
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assert_eq!(db.face("BadPDF", "Regular").family, "BadPDF");
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let mut p = deck(1);
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let slide = Arc::make_mut(&mut p.slides[0]);
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let mut body = TextBody::from_text("Text that must not disappear silently");
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for paragraph in &mut body.paragraphs {
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for run in &mut paragraph.runs {
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run.props.font = Some("BadPDF".into());
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run.props.size = Some(12.0);
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}
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}
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slide.shapes = vec![Shape { id: ShapeId(9000), xfrm: Some(Xfrm::new(20.0, 20.0, 500.0, 200.0)), text: Some(body), ..Default::default() }];
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let error = export(&p, &opts(PageLayout::Slides)).unwrap_err();
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assert!(matches!(error, PdfError::Write(_)));
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assert!(error.to_string().contains("font could not be read for embedding"));
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// Master text remains visible even when the optional slide text layer is off.
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// It must propagate the same embedding error through notes and handout pages.
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let mut header = ph(deckcraft_model::PhType::Header, 0.0, 0.0, 500.0, 40.0, "");
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header.text = p.slides[0].shapes[0].text.clone();
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for layout in [PageLayout::Notes, PageLayout::Handouts { per_page: 3 }] {
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let mut p = deck(1);
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let master = Some(Arc::new(deckcraft_model::Master { shapes: vec![header.clone()], ..Default::default() }));
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if layout == PageLayout::Notes {
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p.notes_master = master;
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} else {
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p.handout_master = master;
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}
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let error = export(&p, &PdfOptions { text_layer: false, ..opts(layout) }).unwrap_err();
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assert!(matches!(error, PdfError::Write(_)));
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assert!(error.to_string().contains("font could not be read for embedding"), "{layout:?}: {error}");
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}
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// The failed export leaves no poisoned writer state behind.
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assert!(export(&deck(1), &opts(PageLayout::Slides)).is_ok());
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}
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#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
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#[cfg_attr(not(target_arch = "wasm32"), test)]
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fn supported_unicode_is_shaped_and_recovered_from_the_page_text_layer() {
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use deckcraft_model::{Shape, ShapeId, Xfrm};
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use hayro_syntax::content::ops::TypedInstruction;
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use hayro_syntax::object::{Dict, Object, Stream};
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let text = "Café Ελληνικά Привет";
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let face = FontDb::global().face("Ubuntu", "Regular");
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assert_eq!(face.family, "Ubuntu");
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assert!(text.chars().all(|c| face.glyph_for(c) != 0), "missing: {:?}", text.chars().filter(|c| face.glyph_for(*c) == 0).collect::<Vec<_>>());
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let mut body = TextBody::from_text(text);
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for paragraph in &mut body.paragraphs {
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for run in &mut paragraph.runs {
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run.props.font = Some("Ubuntu".into());
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run.props.size = Some(20.0);
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}
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}
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let mut p = deck(1);
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Arc::make_mut(&mut p.slides[0]).shapes =
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vec![Shape { id: ShapeId(9001), xfrm: Some(Xfrm::new(20.0, 20.0, 920.0, 100.0)), text: Some(body), ..Default::default() }];
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let placed = deckcraft_render::place_slide(&p, 0);
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let runs: Vec<_> = placed.texts.iter().flat_map(|placed| &placed.layout.runs).collect();
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assert!(!runs.is_empty());
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assert!(runs.iter().all(|run| run.face.family == "Ubuntu" && !run.glyphs.is_empty() && run.glyphs.iter().all(|glyph| glyph.0 != 0)));
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let bytes = export(&p, &opts(PageLayout::Slides)).unwrap();
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let pdf = hayro_syntax::Pdf::new(bytes.clone()).unwrap();
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let page = &pdf.pages()[0];
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let resources = page.raw().get::<Dict<'_>>(b"Resources").unwrap();
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let fonts = resources.get::<Dict<'_>>(b"Font").unwrap();
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assert_eq!(fonts.len(), 1);
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let font = fonts.get::<Dict<'_>>(fonts.keys().next().unwrap()).unwrap();
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let cmap = font.get::<Stream<'_>>(b"ToUnicode").unwrap().decoded().unwrap().into_owned();
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let cmap = std::str::from_utf8(&cmap).unwrap();
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// This fixture uses the writer's two-byte CIDs and bfchar mappings. Decode the
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// content's text-showing operators through that map, not document metadata.
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let mut mapping = HashMap::<u16, String>::new();
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let mut in_char_map = false;
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for line in cmap.lines() {
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if line.ends_with("beginbfchar") {
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in_char_map = true;
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} else if line == "endbfchar" {
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in_char_map = false;
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} else if in_char_map {
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let parts: Vec<_> = line.split_whitespace().collect();
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let cid = u16::from_str_radix(parts[0].trim_matches(['<', '>']), 16).unwrap();
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let value = parts[1].trim_matches(['<', '>']);
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let units: Vec<_> = value
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.as_bytes()
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.as_chunks::<4>()
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.0
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.iter()
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.map(|chunk| u16::from_str_radix(std::str::from_utf8(chunk).unwrap(), 16).unwrap())
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.collect();
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mapping.insert(cid, String::from_utf16(&units).unwrap());
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}
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}
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let mut extracted = String::new();
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let mut append = |bytes: &[u8]| {
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assert!(bytes.len().is_multiple_of(2));
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for pair in bytes.as_chunks::<2>().0 {
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extracted.push_str(mapping.get(&u16::from_be_bytes([pair[0], pair[1]])).unwrap());
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}
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};
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let mut operations = page.typed_operations();
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while let Some(operation) = operations.next() {
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match operation {
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TypedInstruction::ShowText(value) => append(value.0.as_bytes()),
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TypedInstruction::ShowTexts(values) => {
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for value in values.0.iter::<Object<'_>>() {
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if let Object::String(value) = value {
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append(value.as_bytes());
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}
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}
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}
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_ => {}
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}
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}
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assert_eq!(extracted, text);
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}
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/// Notes pages and handouts print on the chosen paper, landscape included, with every slide box
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/// on the page and room left for the notes.
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#[test]
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fn notes_and_handouts_fit_any_paper_and_orientation() {
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let p = deck(3);
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for (id, _, _) in PAPERS {
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for landscape in [false, true] {
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let paper = paper_size(id, landscape).expect("known paper");
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assert_eq!(paper.0 > paper.1, landscape, "{id}");
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let b = notes_slide_box(paper, 16.0 / 9.0);
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assert!(b.x0 >= 0.0 && b.x1 <= paper.0 && b.y1 <= paper.1 * 0.5, "{id} {landscape}: {b:?}");
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assert!((b.width() / b.height() - 16.0 / 9.0).abs() < 1e-6);
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for n in [1, 3, 6, 9] {
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for r in handout_boxes(n, paper, 16.0 / 9.0) {
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assert!(r.x0 >= 0.0 && r.y0 >= 0.0 && r.x1 <= paper.0 && r.y1 <= paper.1, "{id} {landscape} {n}: {r:?}");
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}
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}
|
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for layout in [PageLayout::Notes, PageLayout::Handouts { per_page: 6 }] {
|
||
let bytes = export(&p, &PdfOptions { paper, ..opts(layout) }).expect("export");
|
||
let text = String::from_utf8_lossy(&bytes);
|
||
let media = format!("/MediaBox[0 0 {} {}]", fmt(paper.0), fmt(paper.1));
|
||
assert!(text.contains(&media), "{id} {landscape} {layout:?}: no {media}");
|
||
}
|
||
}
|
||
}
|
||
assert_eq!(paper_size("bogus", false), None);
|
||
}
|
||
|
||
fn fmt(v: f64) -> String {
|
||
let s = format!("{:.2}", v as f32);
|
||
s.trim_end_matches('0').trim_end_matches('.').to_string()
|
||
}
|
||
|
||
fn ph(kind: deckcraft_model::PhType, x: f64, y: f64, w: f64, h: f64, text: &str) -> deckcraft_model::Shape {
|
||
deckcraft_model::Shape {
|
||
xfrm: Some(deckcraft_model::Xfrm::new(x, y, w, h)),
|
||
ph: Some(deckcraft_model::Placeholder { kind, ..Default::default() }),
|
||
text: Some(TextBody::from_text(text)),
|
||
..Default::default()
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn notes_pages_and_handouts_follow_their_masters() {
|
||
use deckcraft_model::PhType;
|
||
let mut p = deck(2);
|
||
let paper = (612.0, 792.0);
|
||
// No masters: the default layout (slide at the top, one-inch side margins).
|
||
let (slide, notes) = notes_frames(&p, paper);
|
||
assert_eq!((slide.x0, slide.y0), (72.0, 54.0));
|
||
assert!(notes.y0 > slide.y1);
|
||
// A notes master moves the slide and the notes, scaled from the notes size to the paper.
|
||
p.notes_size = deckcraft_model::Size::new(612.0, 792.0);
|
||
p.notes_master = Some(Arc::new(deckcraft_model::Master {
|
||
shapes: vec![
|
||
ph(PhType::SlideImage, 100.0, 400.0, 412.0, 300.0, ""),
|
||
ph(PhType::Body, 50.0, 50.0, 500.0, 300.0, ""),
|
||
ph(PhType::Header, 0.0, 0.0, 300.0, 30.0, "Q3 review"),
|
||
ph(PhType::Date, 312.0, 0.0, 300.0, 30.0, ""),
|
||
ph(PhType::SlideNum, 312.0, 760.0, 300.0, 30.0, "<#>"),
|
||
],
|
||
..Default::default()
|
||
}));
|
||
let (slide, notes) = notes_frames(&p, paper);
|
||
assert!(slide.y0 >= 400.0 && slide.y1 <= 700.0 + 1e-6 && slide.x0 >= 100.0 - 1e-6, "{slide:?}");
|
||
assert!(((slide.width() / slide.height()) - p.slide_size.width / p.slide_size.height).abs() < 1e-6);
|
||
assert_eq!(notes, Rect::new(50.0, 50.0, 550.0, 350.0));
|
||
let texts = master_texts(&p, p.notes_master.as_deref().unwrap(), paper, 7);
|
||
let got: Vec<(&str, bool)> = texts.iter().map(|(_, t, r, _)| (t.as_str(), *r)).collect();
|
||
assert_eq!(got, [("Q3 review", false), ("7", true)], "empty date left out, number is the page");
|
||
// Notes pages and handouts export with the masters.
|
||
for layout in [PageLayout::Notes, PageLayout::Handouts { per_page: 3 }] {
|
||
if layout != PageLayout::Notes {
|
||
p.handout_master = Some(Arc::new(deckcraft_model::Master {
|
||
shapes: vec![ph(PhType::Footer, 0.0, 760.0, 300.0, 30.0, "Confidential")],
|
||
..Default::default()
|
||
}));
|
||
}
|
||
let bytes = export(&p, &PdfOptions { layout, ..Default::default() }).unwrap();
|
||
assert!(bytes.starts_with(b"%PDF"));
|
||
}
|
||
}
|
||
|
||
#[test]
|
||
fn master_text_keeps_its_own_formatting() {
|
||
use deckcraft_model::text::RunProps;
|
||
use deckcraft_model::{ColorRef, Fill, PhType, Rgba};
|
||
let mut p = deck(1);
|
||
p.notes_size = deckcraft_model::Size::new(612.0, 792.0);
|
||
let mut header = ph(PhType::Header, 0.0, 0.0, 300.0, 30.0, "Board pack");
|
||
if let Some(run) = header.text.as_mut().and_then(|t| t.paragraphs.first_mut()).and_then(|p| p.runs.first_mut()) {
|
||
run.props = RunProps {
|
||
size: Some(20.0),
|
||
bold: Some(true),
|
||
fill: Some(Fill::solid(ColorRef::rgb(Rgba::rgb(200, 0, 0)))),
|
||
font: Some("+mj-lt".into()),
|
||
..Default::default()
|
||
};
|
||
}
|
||
let m = deckcraft_model::Master { shapes: vec![header, ph(PhType::Footer, 0.0, 760.0, 300.0, 30.0, "plain")], ..Default::default() };
|
||
let texts = master_texts(&p, &m, (612.0, 792.0), 1);
|
||
let st = &texts[0].3;
|
||
assert_eq!((st.size, st.bold, st.italic, st.color), (20.0, true, false, Rgba::rgb(200, 0, 0)));
|
||
assert_eq!(st.family, m.theme.font("+mj-lt"), "theme font resolved");
|
||
// Unstyled text falls back through the master's styles; sizes scale with the paper.
|
||
let half = master_texts(&p, &m, (306.0, 396.0), 1);
|
||
assert!((half[0].3.size - 10.0).abs() < 1e-9);
|
||
assert!(texts[1].3.size > 0.0 && !texts[1].3.bold);
|
||
p.notes_master = Some(Arc::new(m));
|
||
assert!(export(&p, &PdfOptions { layout: PageLayout::Notes, ..Default::default() }).unwrap().starts_with(b"%PDF"));
|
||
}
|
||
|
||
#[test]
|
||
fn master_text_wraps_and_keeps_mixed_formatting() {
|
||
use deckcraft_model::text::{Run, RunProps};
|
||
use deckcraft_model::{PhType, Rgba};
|
||
let mut p = deck(1);
|
||
p.notes_size = deckcraft_model::Size::new(612.0, 792.0);
|
||
let mut header = ph(PhType::Header, 0.0, 0.0, 200.0, 80.0, "");
|
||
if let Some(para) = header.text.as_mut().and_then(|t| t.paragraphs.first_mut()) {
|
||
para.runs = vec![
|
||
Run::with("Quarterly board pack ", RunProps { size: Some(18.0), bold: Some(true), ..Default::default() }),
|
||
Run::with(
|
||
"for internal circulation only, please do not forward",
|
||
RunProps {
|
||
size: Some(9.0),
|
||
fill: Some(deckcraft_model::Fill::solid(deckcraft_model::ColorRef::rgb(Rgba::rgb(200, 0, 0)))),
|
||
..Default::default()
|
||
},
|
||
),
|
||
];
|
||
}
|
||
let m = deckcraft_model::Master { shapes: vec![header, ph(PhType::SlideNum, 312.0, 760.0, 300.0, 30.0, "")], ..Default::default() };
|
||
let placed = deckcraft_render::place_master_texts(&p, &m, 4);
|
||
assert_eq!(placed.len(), 2, "header and page number");
|
||
let h = &placed[0].layout;
|
||
assert!(h.lines.len() >= 2, "wraps inside its 200 pt placeholder: {} lines", h.lines.len());
|
||
let sizes: Vec<f64> = h.runs.iter().filter(|r| !r.glyphs.is_empty()).map(|r| r.size).collect();
|
||
assert!(sizes.iter().any(|s| (*s - 18.0).abs() < 0.5) && sizes.iter().any(|s| (*s - 9.0).abs() < 0.5), "{sizes:?}");
|
||
assert!(h.runs.iter().any(|r| r.color == Rgba::rgb(200, 0, 0)));
|
||
let num: String = placed[1].body.text();
|
||
assert_eq!(num, "4");
|
||
// The same layout as pieces for the Notes Page view: on more than one line, scaled to paper.
|
||
let pieces = master_text_pieces(&p, &m, (306.0, 396.0), 4);
|
||
let mut ys: Vec<i64> = pieces.iter().map(|x| x.at.1.round() as i64).collect();
|
||
ys.dedup();
|
||
assert!(ys.len() >= 3, "two header lines and the number: {pieces:?}");
|
||
assert!(pieces.iter().any(|x| x.bold && (x.size - 9.0).abs() < 0.5), "18 pt bold at half size");
|
||
assert!(pieces.iter().any(|x| x.color == Rgba::rgb(200, 0, 0) && !x.bold));
|
||
assert!(pieces.iter().any(|x| x.text == "4"));
|
||
p.notes_master = Some(Arc::new(m));
|
||
assert!(export(&p, &PdfOptions { layout: PageLayout::Notes, ..Default::default() }).unwrap().starts_with(b"%PDF"));
|
||
}
|
||
|
||
/// Slides that share their layout store their backdrop raster once in the exported PDF, over which
|
||
/// each slide's own shapes draw as their own raster (#845).
|
||
#[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
|
||
#[cfg_attr(not(target_arch = "wasm32"), test)]
|
||
fn slides_share_one_backdrop_raster_and_keep_their_pixels() {
|
||
use deckcraft_model::{Shape, ShapeId, Xfrm};
|
||
use hayro_syntax::object::{Dict, Number, Stream};
|
||
|
||
/// The image XObjects the export stores, one entry per distinct object: the pages that draw
|
||
/// it, its filters, color channel, alpha channel (the SMask) and pixel size.
|
||
fn images(p: &Presentation) -> Vec<(Vec<usize>, Vec<hayro_syntax::Filter>, Vec<u8>, Option<Vec<u8>>, (u32, u32))> {
|
||
let bytes = export(p, &opts(PageLayout::Slides)).expect("export");
|
||
let pdf = hayro_syntax::Pdf::new(bytes).expect("pdf");
|
||
let mut out: Vec<(String, Vec<usize>, Vec<hayro_syntax::Filter>, Vec<u8>, Option<Vec<u8>>, (u32, u32))> = Vec::new();
|
||
for (n, page) in pdf.pages().iter().enumerate() {
|
||
let resources = page.raw().get::<Dict>(b"Resources").expect("resources");
|
||
let xobjects = resources.get::<Dict>(b"XObject").expect("xobjects");
|
||
for key in xobjects.keys() {
|
||
let stream = xobjects.get::<Stream>(key).expect("stream");
|
||
let id = format!("{:?}", stream.obj_id());
|
||
match out.iter_mut().find(|(seen, ..)| *seen == id) {
|
||
Some(entry) => entry.1.push(n),
|
||
None => {
|
||
let dict = stream.dict();
|
||
let alpha = dict.get::<Stream>(b"SMask").map(|mask| mask.decoded().expect("decoded").into_owned());
|
||
let size = (
|
||
dict.get::<Number>(b"Width").expect("width").as_f64() as u32,
|
||
dict.get::<Number>(b"Height").expect("height").as_f64() as u32,
|
||
);
|
||
out.push((id, vec![n], stream.filters().into_vec(), stream.decoded().expect("decoded").into_owned(), alpha, size));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
out.into_iter().map(|(_, pages, filters, rgb, alpha, size)| (pages, filters, rgb, alpha, size)).collect()
|
||
}
|
||
|
||
// The raster scale the exporter uses for one slide per page.
|
||
let scale = |p: &Presentation| (p.slide_size.width / 72.0 * opts(PageLayout::Slides).dpi) / p.slide_size.width;
|
||
|
||
// Three slides without shapes: every page is pure backdrop and shares one raster, which is
|
||
// exactly what the renderer draws.
|
||
let mut p = deck(3);
|
||
for slide in &mut p.slides {
|
||
Arc::make_mut(slide).shapes.clear();
|
||
}
|
||
let stored = images(&p);
|
||
assert_eq!(stored.len(), 1, "all three pages must share one backdrop raster");
|
||
let (pages, filters, rgb, alpha, size) = stored.into_iter().next().expect("one image");
|
||
assert_eq!(pages, [0, 1, 2]);
|
||
assert_eq!(filters, [hayro_syntax::Filter::FlateDecode], "backdrop artwork stays lossless");
|
||
assert!(alpha.is_none(), "the backdrop is opaque and needs no alpha mask");
|
||
let expect = deckcraft_render::render_slide(&p, 0, &RenderOpts { scale: scale(&p), threads: 4, ..Default::default() });
|
||
assert_eq!(size, (expect.width, expect.height));
|
||
let want: Vec<u8> = expect.pixels.as_chunks::<4>().0.iter().flat_map(|px| px[..3].iter().copied()).collect();
|
||
assert_eq!(rgb, want, "the shared raster is exactly what the renderer draws");
|
||
|
||
// Slides with different text still share the backdrop: one raster on every page plus one per
|
||
// slide's own shapes.
|
||
let stored = images(&deck(3));
|
||
assert_eq!(stored.len(), 4, "one shared backdrop plus three content rasters");
|
||
assert_eq!(stored.iter().filter(|(pages, ..)| pages.len() == 3).count(), 1, "the backdrop is the only raster every page draws");
|
||
|
||
// A slide's own shapes draw over the shared backdrop as a second raster, stored as straight
|
||
// RGBA (color channel plus alpha mask), never the renderer's premultiplied pixels.
|
||
let mut p = deck(1);
|
||
Arc::make_mut(&mut p.slides[0]).shapes.push(Shape {
|
||
id: ShapeId(9002),
|
||
xfrm: Some(Xfrm::new(20.0, 20.0, 400.0, 300.0)),
|
||
fill: Some(deckcraft_model::Fill::solid(deckcraft_model::ColorRef::rgb(deckcraft_model::Rgba::rgb(200, 30, 30)))),
|
||
..Default::default()
|
||
});
|
||
let stored = images(&p);
|
||
assert_eq!(stored.len(), 2, "shared backdrop plus the slide's content");
|
||
let (_, filters, rgb, alpha, _) = stored.into_iter().find(|(_, _, _, alpha, _)| alpha.is_some()).expect("content raster");
|
||
assert_eq!(filters, [hayro_syntax::Filter::FlateDecode]);
|
||
let expect = deckcraft_render::render_slide_part(
|
||
&p,
|
||
0,
|
||
deckcraft_render::SlidePart::Content,
|
||
&RenderOpts { scale: scale(&p), threads: 4, ..Default::default() },
|
||
);
|
||
let straight = expect.to_straight();
|
||
let want_rgb: Vec<u8> = straight.as_chunks::<4>().0.iter().flat_map(|px| px[..3].iter().copied()).collect();
|
||
let want_alpha: Vec<u8> = straight.as_chunks::<4>().0.iter().map(|px| px[3]).collect();
|
||
assert_eq!(rgb, want_rgb, "content colors are straight, not premultiplied");
|
||
assert_eq!(alpha, Some(want_alpha), "content alpha keeps the shape's coverage");
|
||
}
|
||
|
||
#[test]
|
||
fn glyph_ranges_follow_shaping_clusters() {
|
||
// "fl" ligature: its glyph maps to both characters, the rest stay one to one (#164).
|
||
assert_eq!(glyph_text_ranges("flash", (0, 5), &[(0, 'f'), (2, 'a'), (3, 's'), (4, 'h')], 4), vec![0..2, 2..3, 3..4, 4..5]);
|
||
// Two glyphs in one cluster (base and mark) share its range.
|
||
assert_eq!(glyph_text_ranges("ab", (0, 2), &[(0, 'a'), (0, 'a'), (1, 'b')], 3), vec![0..1, 0..1, 1..2]);
|
||
// A run starting mid-paragraph, multi-byte characters in visual (right-to-left) order.
|
||
assert_eq!(glyph_text_ranges("αβγ", (3, 6), &[(5, 'γ'), (4, 'β'), (3, 'α')], 3), vec![4..6, 2..4, 0..2]);
|
||
}
|
||
|
||
#[test]
|
||
fn raster_scale_caps_total_pixels_not_each_side() {
|
||
// A huge square slide at 600 dpi would be 16,000 x 16,000 px (~1 GB RGBA) without the cap.
|
||
let s = raster_scale(20_000.0, (20_000.0, 20_000.0), 600.0);
|
||
let px = 20_000.0 * s * 20_000.0 * s;
|
||
assert!(px <= MAX_RASTER_PIXELS * 1.0001, "{px}");
|
||
// A normal slide keeps the requested dpi.
|
||
let s = raster_scale(720.0, (960.0, 540.0), 200.0);
|
||
assert!((s - 720.0 / 72.0 * 200.0 / 960.0).abs() < 1e-12);
|
||
}
|