d25cce9ae6
Squashed from work; the fine-grained history is under tag archive/work-2026-08-29: - mp* wave: mpwm window manager + the mp app family, WM API, theme bridge, PDF engine fix - mpwm polish wave: terminal key focus, focus-history close order, pop-back-to-origin, occupied-workspace cycling, demo - mpwm: ghost-launch/menu-flash root cause, scroll z-gate, browser binds, path-free status, viewers delisted, Fab opens - mpwm: Hyprland-exact close animation over a frozen snapshot - mpwm: warm-instance pool, flat-luminance opens, flicker-free CEF resize - work: land the sources the last commits reference - mpwm: quick-look gap fixes; image cache eviction on preview unload - tweaker: material thumbnails + vibecode popup + ctrl-space notes, undo/redo over the edit ledger, capture-semantics pi - tweaker: tabbed side panel (Props/Shader/Tree) - shader tab with checkerboard material well + prompt, complete widget- - mpwm+mpterm: text quick-look — pty teardown deadlock fix, in-place retarget verified, debug probes stripped
83 lines
3.2 KiB
Rust
83 lines
3.2 KiB
Rust
//! Dump a PDF's fonts and first text ops — the diagnosis instrument for
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//! text-positioning bugs. `cargo run -p makepad-pdf-parse --example pdfdump
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//! --release -- <file.pdf> [page] [max_ops]`.
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use makepad_pdf_parse::content::parse_content_stream;
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use makepad_pdf_parse::document::PdfDocument;
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use makepad_pdf_parse::PdfOp;
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fn main() {
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let mut args = std::env::args().skip(1);
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let path = args.next().expect("usage: pdfdump <file.pdf> [page] [max]");
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let page_no: usize = args.next().and_then(|s| s.parse().ok()).unwrap_or(0);
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let max_ops: usize = args.next().and_then(|s| s.parse().ok()).unwrap_or(160);
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let data = std::fs::read(&path).expect("read pdf");
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let mut doc = PdfDocument::parse(&data).expect("parse pdf");
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println!("pages: {}", doc.page_count());
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let page = doc.page(page_no).expect("page");
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println!(
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"page {}: media {:?} crop {:?} rotate {} content {} bytes",
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page_no,
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page.media_box,
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page.crop_box,
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page.rotate,
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page.content_data.len()
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);
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for (name, f) in &page.fonts {
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println!(
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"font {}: subtype={} base={} enc={:?} first={} last={} widths={} dw={} cidw={:?} tounicode={}",
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name,
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f.subtype,
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f.base_font,
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f.encoding,
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f.first_char,
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f.last_char,
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f.widths.len(),
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f.default_width,
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f.cid_widths.as_ref().map(|w| w.len()),
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f.to_unicode.as_ref().map(|t| t.mappings.len()).unwrap_or(0)
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);
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}
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let ops = parse_content_stream(&page.content_data).expect("content");
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println!("ops: {}", ops.len());
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let mut shown = 0usize;
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for op in &ops {
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let line = match op {
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PdfOp::BeginText => "BT".to_string(),
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PdfOp::EndText => "ET".to_string(),
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PdfOp::SetFont(n, s) => format!("Tf /{} {}", n, s),
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PdfOp::SetTextMatrix(m) => format!("Tm {:?}", m),
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PdfOp::MoveText(x, y) => format!("Td {} {}", x, y),
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PdfOp::MoveTextSetLeading(x, y) => format!("TD {} {}", x, y),
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PdfOp::NextLine => "T*".to_string(),
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PdfOp::SetTextLeading(v) => format!("TL {}", v),
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PdfOp::ConcatMatrix(m) => format!("cm {:?}", m),
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PdfOp::SaveState => "q".to_string(),
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PdfOp::RestoreState => "Q".to_string(),
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PdfOp::ShowText(b) => format!("Tj {:?}", String::from_utf8_lossy(b)),
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PdfOp::ShowTextArray(items) => {
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let mut s = String::from("TJ [");
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for it in items {
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match it {
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makepad_pdf_parse::TextArrayItem::Text(b) => {
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s.push_str(&format!("{:?} ", String::from_utf8_lossy(b)))
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}
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makepad_pdf_parse::TextArrayItem::Adjustment(a) => {
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s.push_str(&format!("{} ", a))
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}
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}
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}
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s.push(']');
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s
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}
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_ => continue,
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};
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println!(" {}", line);
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shown += 1;
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if shown >= max_ops {
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println!(" … (truncated)");
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break;
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}
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}
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}
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