Files
pdfcraft/crates/annot/src/lib.rs
T
mtlcl410andClaude Opus 5.5 492011348e M5: comments in an /RT /Group are one comment, with the primary's attributes, ported onto main
A single squashed port of the branch's four commits onto current main, which
split annot's lib.rs (info.rs, modify.rs), render's inspect.rs (model.rs,
annotations.rs, tests.rs), engine's lib.rs (comments.rs, edit/run.rs) and
ui-egui's comments.rs (tools/comments/*). The behaviour and tests are the
branch's (ISO 32000-2 §12.5.6.2):

- a group subordinate is part of its primary's comment: listed, selected,
  exported and deleted with it, with the primary's attributes;
- Replace Text writes the caret as the primary and the strikeout as its
  subordinate; earlier groups (strikeout primary, text on the caret) still
  list their text, through a map;
- deleting a group refuses a locked member, and a subordinate whose primary
  is past the depth limit.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01Pq7HyCfwzyRXj4VfQAVVdv
2026-10-31 08:29:58 +08:00

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//! pdfcraft-annot — comments (annotations), ISO 32000-2 §12.5, execution plan M5.1–M5.3.
//!
//! Builders for the comment types Acrobat's commenting tools create (sticky note, highlight,
//! underline, strikethrough, squiggly, rectangle, oval, line/arrow, freehand ink, text box),
//! appearance streams for them ([`appearance`]), and the edits a comment goes through: reply,
//! change its text, recolour, move, resize and delete.
//!
//! Addressing: a comment is `(page, index)`, its position in the page's `/Annots` array, which
//! is what `pdfcraft_render::Annotation::index` reports. Inline annotation dictionaries are
//! promoted to indirect objects when they are edited (replies need a reference to point at).
//!
//! Every edit mutates a `pdfcraft_cos::Document` (copy-on-write); callers snapshot it first
//! for undo. Keys we do not understand are left alone.
#![deny(clippy::unwrap_used, clippy::expect_used, clippy::panic, clippy::unimplemented, clippy::todo, clippy::unreachable)]
use std::collections::{HashMap, HashSet};
use pdfcraft_cos::{Dict, Document, ObjRef, Object, PdfString, Stream};
mod create;
mod draw;
mod info;
mod lookup;
mod modify;
mod types;
#[cfg(test)]
use create::num_array;
pub use create::{add_annotation, callout_attach, orient_image_stamp};
pub use draw::{AppearanceCache, set_appearance, with_missing_appearances, with_missing_appearances_cached};
pub use info::{Props, Summary, is_comment_subtype, is_group_subordinate, props, set_info, summaries};
#[cfg(test)]
use lookup::{ANNOTS_ENTRIES_COPIED, PageWalk, annot_dict, annot_ref};
use lookup::{annots, page_ref};
pub use lookup::{
has_visible_fill_sign, is_fill_sign, isolate_annotation, isolate_annotations, page_refs, picture_rotation, set_annots, signature_image,
};
pub(crate) use modify::n;
pub use modify::{
add_reply, add_text_replacement, deletable, delete_annotation, erase_ink, fillable, goes_with, lift_annotation, move_annotation, set_contents,
set_fill, set_font_size, set_locked, set_marked, set_points, set_rect, set_review_state, set_style, with_replies_and_popups,
};
pub use types::{
AttachIcon, FillMark, LineEnding, Markup, Meta, NOTE_SIZE, NewAnnotation, NoteIcon, OverlayFont, OverlayLook, ReviewState, Rgb, Shape,
StampGroup, StampKind, Style, StyleChange, TextReplacement, rect_quad,
};
pub mod appearance;
pub mod links;
#[cfg(test)]
mod tests;
#[derive(Debug, thiserror::Error, PartialEq)]
pub enum AnnotError {
#[error("the document has no page tree")]
NoPageTree,
/// Holds the 0-based index; the message names the 1-based page a user counts (#1550).
#[error("page {} does not exist", .0.saturating_add(1))]
NoSuchPage(usize),
#[error("there is no comment {index} on page {page}")]
NoSuchAnnotation { page: usize, index: usize },
#[error("{0}")]
Invalid(String),
#[error("{0} comments can't be restyled yet (their appearance can't be regenerated)")]
Unsupported(String),
/// Text the standard fonts can't draw where `?` would be permanent or replace a good drawing:
/// a redaction's overlay text, or an edit that would redraw a comment another program drew
/// with a font that has those characters. The message names the character.
#[error("{0}")]
Undrawable(String),
#[error("{0}")]
Cos(#[from] pdfcraft_cos::CosError),
}