feat(pdftract-3r77): implement non-link annotation extractor with subtype-specific fields
Implemented Phase 7.6.3: extract non-link annotations with subtype-specific fields including: - TextMarkup (Highlight/Squiggly/StrikeOut/Underline) with /QuadPoints - Stamp with /Name icon - FreeText with /DA default appearance - Text (sticky notes) with /Open, /State, /StateModel - Ink with /InkList stroke paths - Line with /L endpoints - Polygon/PolyLine with /Vertices - FileAttachment with /FS filespec reference - Other (Circle, Square, Caret, Redact, etc.) with no extra fields Added AnnotationSpecific enum to capture subtype-specific extras while preserving the stable AnnotationCommon struct. Unknown subtypes emit as Other without diagnostics (future: emit unhandled_annotation_subtype). Comprehensive unit tests for all subtypes including edge cases. Fixed pre-existing borrow issue in content_stream.rs. Closes: pdftract-3r77 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
jedarden
parent
3cd1369b1d
commit
b1b7840d9a
4 changed files with 825 additions and 64 deletions
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@ -166,7 +166,7 @@ pub fn dispatch_annotations(
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all_links.push(link);
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}
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} else {
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if let Some(annotation) = other::extract_annotation(&annot_dict, common) {
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if let Some(annotation) = other::extract_annotation(&annot_dict, common, resolver) {
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all_annotations.push(annotation);
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}
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}
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@ -4,7 +4,41 @@
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//! FreeText, Note, Squiggly, StrikeOut, Underline, etc.
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use crate::annotation::AnnotationCommon;
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use crate::parser::object::PdfDict;
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use crate::parser::object::{PdfDict, PdfObject};
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use crate::parser::xref::XrefResolver;
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/// Subtype-specific fields for non-link annotations.
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///
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/// Different annotation subtypes have additional fields beyond the common
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/// fields. This enum captures those subtype-specific extras.
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#[derive(Debug, Clone)]
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pub enum AnnotationSpecific {
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/// Highlight, Squiggly, StrikeOut, Underline: quad points for the highlighted regions.
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TextMarkup { quads: Vec<[f32; 8]> },
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/// Stamp annotation: icon name.
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Stamp { name: Option<String> },
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/// FreeText annotation: default appearance string.
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FreeText { da: Option<String> },
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/// Text (sticky note) annotation: open state and model.
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Text {
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open: Option<bool>,
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state: Option<String>,
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state_model: Option<String>,
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},
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/// Ink annotation: stroke paths.
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Ink { strokes: Vec<Vec<[f32; 2]>> },
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/// Line annotation: endpoints.
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Line { endpoints: Option<[f32; 4]> },
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/// Polygon or PolyLine annotation: vertices.
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Polygon { vertices: Vec<[f32; 2]> },
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/// FileAttachment annotation: filespec reference.
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FileAttachment {
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fs_ref: Option<crate::parser::object::ObjRef>,
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},
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/// Circle, Square, Caret, Redact, Sound, Movie, Screen, PrinterMark, TrapNet, Watermark, 3D:
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/// No additional subtype-specific fields extracted.
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Other,
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}
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/// A non-link annotation extracted from a PDF page.
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///
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@ -14,6 +48,8 @@ use crate::parser::object::PdfDict;
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pub struct Annotation {
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/// Common annotation fields (subtype, rect, contents, etc.).
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pub common: AnnotationCommon,
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/// Subtype-specific fields.
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pub specific: AnnotationSpecific,
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}
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/// Extract a non-link annotation from an annotation dictionary.
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@ -25,14 +61,248 @@ pub struct Annotation {
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///
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/// * `dict` - The annotation dictionary
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/// * `common` - Pre-extracted common annotation fields
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/// * `resolver` - The Xref resolver for dereferencing indirect objects
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///
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/// # Returns
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///
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/// Some(Annotation) for valid non-link annotations, None for skipped types.
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pub(crate) fn extract_annotation(_dict: &PdfDict, common: AnnotationCommon) -> Option<Annotation> {
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// For now, all non-link, non-widget, non-popup annotations are valid
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// The common struct already contains all the shared fields
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Some(Annotation { common })
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pub(crate) fn extract_annotation(
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dict: &PdfDict,
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common: AnnotationCommon,
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resolver: &XrefResolver,
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) -> Option<Annotation> {
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let subtype = &common.subtype;
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// Dispatch based on subtype to extract subtype-specific fields
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let specific = match subtype.as_str() {
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"Highlight" | "Squiggly" | "StrikeOut" | "Underline" => extract_text_markup(dict, resolver),
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"Stamp" => extract_stamp(dict),
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"FreeText" => extract_freetext(dict),
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"Text" => extract_text_note(dict),
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"Ink" => extract_ink(dict, resolver),
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"Line" => extract_line(dict),
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"Polygon" | "PolyLine" => extract_polygon(dict, resolver),
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"FileAttachment" => extract_file_attachment(dict),
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"Circle" | "Square" | "Caret" | "Redact" | "Sound" | "Movie" | "Screen" | "PrinterMark"
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| "TrapNet" | "Watermark" | "3D" => AnnotationSpecific::Other,
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_ => {
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// Unknown subtype - emit as Other with a note
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// In production, this would emit a diagnostic
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AnnotationSpecific::Other
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}
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};
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Some(Annotation { common, specific })
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}
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/// Extract quad points from text markup annotations (Highlight, Squiggly, StrikeOut, Underline).
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///
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/// Per PDF 1.7 spec, /QuadPoints is an array of 8*N floats representing N quads,
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/// where each quad is (x1, y1, x2, y2, x3, y3, x4, y4) in reading order.
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fn extract_text_markup(dict: &PdfDict, _resolver: &XrefResolver) -> AnnotationSpecific {
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let quads = dict
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.get("/QuadPoints")
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.and_then(|obj| extract_quad_array(obj));
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AnnotationSpecific::TextMarkup {
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quads: quads.unwrap_or_default(),
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}
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}
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/// Extract an array of 8-float quads from a PdfObject.
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fn extract_quad_array(obj: &PdfObject) -> Option<Vec<[f32; 8]>> {
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let arr = obj.as_array()?;
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if arr.len() % 8 != 0 {
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return None;
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}
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let mut quads = Vec::new();
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for chunk in arr.chunks(8) {
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if chunk.len() == 8 {
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let coords: Vec<Option<f32>> = chunk.iter().map(|o| as_f32(o)).collect();
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if coords.iter().all(|c| c.is_some()) {
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quads.push([
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coords[0].unwrap(),
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coords[1].unwrap(),
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coords[2].unwrap(),
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coords[3].unwrap(),
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coords[4].unwrap(),
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coords[5].unwrap(),
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coords[6].unwrap(),
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coords[7].unwrap(),
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]);
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}
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}
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}
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if quads.is_empty() {
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None
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} else {
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Some(quads)
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}
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}
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/// Extract the /Name field from a Stamp annotation.
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fn extract_stamp(dict: &PdfDict) -> AnnotationSpecific {
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let name = dict
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.get("/Name")
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.and_then(|o| o.as_name())
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.map(|s| s.to_string());
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AnnotationSpecific::Stamp { name }
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}
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/// Extract the /DA (default appearance) field from a FreeText annotation.
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fn extract_freetext(dict: &PdfDict) -> AnnotationSpecific {
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let da = dict
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.get("/DA")
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.and_then(|o| o.as_string())
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.and_then(|bytes| String::from_utf8(bytes.to_vec()).ok());
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AnnotationSpecific::FreeText { da }
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}
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/// Extract the /Open, /State, /StateModel fields from a Text (sticky note) annotation.
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fn extract_text_note(dict: &PdfDict) -> AnnotationSpecific {
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let open = dict.get("/Open").and_then(|o| o.as_bool());
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let state = dict
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.get("/State")
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.and_then(|o| o.as_string())
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.and_then(|bytes| String::from_utf8(bytes.to_vec()).ok());
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let state_model = dict
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.get("/StateModel")
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.and_then(|o| o.as_name())
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.map(|s| s.to_string());
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AnnotationSpecific::Text {
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open,
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state,
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state_model,
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}
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}
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/// Extract the /InkList field from an Ink annotation.
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///
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/// /InkList is an array of stroke arrays, where each stroke is an array of (x, y) points.
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fn extract_ink(dict: &PdfDict, resolver: &XrefResolver) -> AnnotationSpecific {
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let strokes = dict
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.get("/InkList")
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.and_then(|obj| extract_ink_list(obj, resolver));
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AnnotationSpecific::Ink {
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strokes: strokes.unwrap_or_default(),
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}
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}
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/// Extract an ink list from a PdfObject.
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fn extract_ink_list(obj: &PdfObject, resolver: &XrefResolver) -> Option<Vec<Vec<[f32; 2]>>> {
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let arr = obj.as_array()?;
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let mut strokes = Vec::new();
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for stroke_obj in arr {
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let stroke_arr = match stroke_obj {
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PdfObject::Array(arr) => arr.to_vec(),
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PdfObject::Ref(r) => match resolver.resolve(*r) {
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Ok(PdfObject::Array(arr)) => arr.to_vec(),
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_ => continue,
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},
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_ => continue,
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};
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let mut points = Vec::new();
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for chunk in stroke_arr.chunks(2) {
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if chunk.len() == 2 {
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if let (Some(x), Some(y)) = (as_f32(&chunk[0]), as_f32(&chunk[1])) {
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points.push([x, y]);
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}
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}
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}
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if !points.is_empty() {
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strokes.push(points);
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}
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}
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if strokes.is_empty() {
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None
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} else {
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Some(strokes)
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}
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}
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/// Extract the /L field from a Line annotation.
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///
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/// /L is an array of 4 floats: [x1, y1, x2, y2].
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fn extract_line(dict: &PdfDict) -> AnnotationSpecific {
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let endpoints = dict.get("/L").and_then(|obj| {
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let arr = obj.as_array()?;
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if arr.len() != 4 {
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return None;
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}
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let coords: Vec<Option<f32>> = arr.iter().map(|o| as_f32(o)).collect();
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if coords.iter().all(|c| c.is_some()) {
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Some([
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coords[0].unwrap(),
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coords[1].unwrap(),
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coords[2].unwrap(),
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coords[3].unwrap(),
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])
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} else {
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None
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}
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});
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AnnotationSpecific::Line { endpoints }
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}
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/// Extract the /Vertices field from a Polygon or PolyLine annotation.
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///
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/// /Vertices is an array of (x, y) coordinate pairs.
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fn extract_polygon(dict: &PdfDict, resolver: &XrefResolver) -> AnnotationSpecific {
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let vertices = dict
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.get("/Vertices")
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.and_then(|obj| extract_vertices(obj, resolver));
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AnnotationSpecific::Polygon {
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vertices: vertices.unwrap_or_default(),
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}
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}
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/// Extract vertices from a PdfObject.
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fn extract_vertices(obj: &PdfObject, resolver: &XrefResolver) -> Option<Vec<[f32; 2]>> {
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let arr = match obj {
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PdfObject::Array(arr) => arr.to_vec(),
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PdfObject::Ref(r) => match resolver.resolve(*r) {
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Ok(PdfObject::Array(arr)) => arr.to_vec(),
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_ => return None,
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},
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_ => return None,
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};
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let mut vertices = Vec::new();
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for chunk in arr.chunks(2) {
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if chunk.len() == 2 {
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if let (Some(x), Some(y)) = (as_f32(&chunk[0]), as_f32(&chunk[1])) {
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vertices.push([x, y]);
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}
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}
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}
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if vertices.is_empty() {
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None
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} else {
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Some(vertices)
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}
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}
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/// Extract the /FS field from a FileAttachment annotation.
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fn extract_file_attachment(dict: &PdfDict) -> AnnotationSpecific {
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let fs_ref = dict.get("/FS").and_then(|o| o.as_ref());
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AnnotationSpecific::FileAttachment { fs_ref }
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}
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/// Convert a PdfObject to f32, handling both Real and Integer types.
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fn as_f32(obj: &PdfObject) -> Option<f32> {
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obj.as_real()
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.map(|f| f as f32)
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.or_else(|| obj.as_int().map(|i| i as f32))
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}
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#[cfg(test)]
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@ -40,92 +310,511 @@ mod tests {
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use super::*;
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use crate::annotation::AnnotationCommon;
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use crate::parser::object::PdfObject;
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use crate::parser::xref::XrefResolver;
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use indexmap::IndexMap;
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use std::sync::Arc;
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#[test]
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fn test_extract_highlight_annotation() {
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let mut dict = IndexMap::new();
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fn make_resolver() -> XrefResolver {
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XrefResolver::new()
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}
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// Add /Contents
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dict.insert(
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Arc::from("/Contents"),
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PdfObject::String(Box::new(b"Important text".to_vec())),
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);
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let common = AnnotationCommon {
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subtype: "Highlight".to_string(),
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fn make_common(subtype: &str) -> AnnotationCommon {
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AnnotationCommon {
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subtype: subtype.to_string(),
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rect: Some([10.0, 20.0, 100.0, 30.0]),
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contents: Some("Important text".to_string()),
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contents: Some("Test content".to_string()),
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author: None,
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modified: None,
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color: Some(vec![1.0, 1.0, 0.0]), // Yellow highlight
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opacity: Some(0.5),
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color: None,
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opacity: None,
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flags: 0,
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name_id: None,
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subject: None,
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page_index: 0,
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};
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}
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}
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let result = extract_annotation(&dict, common);
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#[test]
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fn test_extract_highlight_annotation_with_quads() {
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let resolver = make_resolver();
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let mut dict = IndexMap::new();
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// Add /QuadPoints for a highlight (2 quads = 16 floats)
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let mut quads = Vec::new();
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for i in 0..16 {
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quads.push(PdfObject::Real(i as f64));
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}
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dict.insert(Arc::from("/QuadPoints"), PdfObject::Array(Box::new(quads)));
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let common = make_common("Highlight");
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let result = extract_annotation(&dict, common, &resolver);
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assert!(result.is_some());
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let annotation = result.unwrap();
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assert_eq!(annotation.common.subtype, "Highlight");
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assert_eq!(
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annotation.common.contents,
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Some("Important text".to_string())
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);
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assert_eq!(annotation.common.color, Some(vec![1.0, 1.0, 0.0]));
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match annotation.specific {
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AnnotationSpecific::TextMarkup { ref quads } => {
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assert_eq!(quads.len(), 2);
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assert_eq!(quads[0], [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0]);
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}
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_ => panic!("Expected TextMarkup specific fields"),
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}
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}
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#[test]
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fn test_extract_text_annotation() {
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fn test_extract_highlight_annotation_no_quads() {
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let resolver = make_resolver();
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let dict = IndexMap::new();
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let common = AnnotationCommon {
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subtype: "Text".to_string(),
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rect: Some([50.0, 100.0, 70.0, 120.0]),
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contents: Some("Review this section".to_string()),
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author: Some("John Doe".to_string()),
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modified: Some("2023-05-15T14:30:45Z".to_string()),
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color: None,
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opacity: None,
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flags: 0,
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name_id: Some("note-1".to_string()),
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subject: Some("Review".to_string()),
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page_index: 2,
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};
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let common = make_common("Highlight");
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let result = extract_annotation(&dict, common, &resolver);
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assert!(result.is_some());
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let annotation = result.unwrap();
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let result = extract_annotation(&dict, common);
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match annotation.specific {
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AnnotationSpecific::TextMarkup { ref quads } => {
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assert!(quads.is_empty());
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}
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_ => panic!("Expected TextMarkup specific fields"),
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}
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}
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#[test]
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fn test_extract_stamp_annotation() {
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let resolver = make_resolver();
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let mut dict = IndexMap::new();
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dict.insert(Arc::from("/Name"), PdfObject::Name("Approved".into()));
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let common = make_common("Stamp");
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let result = extract_annotation(&dict, common, &resolver);
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assert!(result.is_some());
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let annotation = result.unwrap();
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assert_eq!(annotation.common.subtype, "Stamp");
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match annotation.specific {
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AnnotationSpecific::Stamp { ref name } => {
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assert_eq!(name.as_deref(), Some("Approved"));
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}
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_ => panic!("Expected Stamp specific fields"),
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}
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}
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#[test]
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fn test_extract_stamp_no_name() {
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let resolver = make_resolver();
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let dict = IndexMap::new();
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let common = make_common("Stamp");
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let result = extract_annotation(&dict, common, &resolver);
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assert!(result.is_some());
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let annotation = result.unwrap();
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match annotation.specific {
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AnnotationSpecific::Stamp { ref name } => {
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assert!(name.is_none());
|
||||
}
|
||||
_ => panic!("Expected Stamp specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_freetext_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
dict.insert(
|
||||
Arc::from("/DA"),
|
||||
PdfObject::String(Box::new(b"1 Tf 0 g".to_vec())),
|
||||
);
|
||||
|
||||
let common = make_common("FreeText");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "FreeText");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::FreeText { ref da } => {
|
||||
assert_eq!(da.as_deref(), Some("1 Tf 0 g"));
|
||||
}
|
||||
_ => panic!("Expected FreeText specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_text_note_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
dict.insert(Arc::from("/Open"), PdfObject::Bool(true));
|
||||
dict.insert(
|
||||
Arc::from("/State"),
|
||||
PdfObject::String(Box::new(b"Reviewed".to_vec())),
|
||||
);
|
||||
dict.insert(Arc::from("/StateModel"), PdfObject::Name("Marked".into()));
|
||||
|
||||
let common = make_common("Text");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Text");
|
||||
assert_eq!(annotation.common.author, Some("John Doe".to_string()));
|
||||
assert_eq!(annotation.common.name_id, Some("note-1".to_string()));
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Text {
|
||||
open,
|
||||
ref state,
|
||||
ref state_model,
|
||||
} => {
|
||||
assert_eq!(open, Some(true));
|
||||
assert_eq!(state.as_deref(), Some("Reviewed"));
|
||||
assert_eq!(state_model.as_deref(), Some("Marked"));
|
||||
}
|
||||
_ => panic!("Expected Text specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_annotation_with_no_contents() {
|
||||
fn test_extract_ink_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
// /InkList with two strokes: first stroke has 2 points, second has 3 points
|
||||
let stroke1 = vec![
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(20.0),
|
||||
PdfObject::Real(30.0),
|
||||
PdfObject::Real(40.0),
|
||||
];
|
||||
let stroke2 = vec![
|
||||
PdfObject::Real(50.0),
|
||||
PdfObject::Real(60.0),
|
||||
PdfObject::Real(70.0),
|
||||
PdfObject::Real(80.0),
|
||||
PdfObject::Real(90.0),
|
||||
PdfObject::Real(100.0),
|
||||
];
|
||||
dict.insert(
|
||||
Arc::from("/InkList"),
|
||||
PdfObject::Array(Box::new(vec![
|
||||
PdfObject::Array(Box::new(stroke1)),
|
||||
PdfObject::Array(Box::new(stroke2)),
|
||||
])),
|
||||
);
|
||||
|
||||
let common = make_common("Ink");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Ink");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Ink { ref strokes } => {
|
||||
assert_eq!(strokes.len(), 2);
|
||||
assert_eq!(strokes[0].len(), 2);
|
||||
assert_eq!(strokes[0][0], [10.0, 20.0]);
|
||||
assert_eq!(strokes[1].len(), 3);
|
||||
}
|
||||
_ => panic!("Expected Ink specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_line_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
dict.insert(
|
||||
Arc::from("/L"),
|
||||
PdfObject::Array(Box::new(vec![
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(20.0),
|
||||
PdfObject::Real(100.0),
|
||||
PdfObject::Real(200.0),
|
||||
])),
|
||||
);
|
||||
|
||||
let common = make_common("Line");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Line");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Line { ref endpoints } => {
|
||||
assert_eq!(endpoints.as_ref(), Some(&[10.0, 20.0, 100.0, 200.0]));
|
||||
}
|
||||
_ => panic!("Expected Line specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_polygon_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
// /Vertices with 3 points (triangle)
|
||||
dict.insert(
|
||||
Arc::from("/Vertices"),
|
||||
PdfObject::Array(Box::new(vec![
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(20.0),
|
||||
PdfObject::Real(30.0),
|
||||
PdfObject::Real(40.0),
|
||||
PdfObject::Real(50.0),
|
||||
PdfObject::Real(60.0),
|
||||
])),
|
||||
);
|
||||
|
||||
let common = make_common("Polygon");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Polygon");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Polygon { ref vertices } => {
|
||||
assert_eq!(vertices.len(), 3);
|
||||
assert_eq!(vertices[0], [10.0, 20.0]);
|
||||
assert_eq!(vertices[1], [30.0, 40.0]);
|
||||
assert_eq!(vertices[2], [50.0, 60.0]);
|
||||
}
|
||||
_ => panic!("Expected Polygon specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_polyline_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
dict.insert(
|
||||
Arc::from("/Vertices"),
|
||||
PdfObject::Array(Box::new(vec![
|
||||
PdfObject::Real(0.0),
|
||||
PdfObject::Real(0.0),
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(20.0),
|
||||
PdfObject::Real(20.0),
|
||||
])),
|
||||
);
|
||||
|
||||
let common = make_common("PolyLine");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "PolyLine");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Polygon { ref vertices } => {
|
||||
assert_eq!(vertices.len(), 3);
|
||||
}
|
||||
_ => panic!("Expected Polygon specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_file_attachment_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let mut dict = IndexMap::new();
|
||||
|
||||
let fs_ref = crate::parser::object::ObjRef::new(42, 0);
|
||||
dict.insert(Arc::from("/FS"), PdfObject::Ref(fs_ref));
|
||||
|
||||
let common = make_common("FileAttachment");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "FileAttachment");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::FileAttachment { fs_ref } => {
|
||||
assert_eq!(fs_ref, Some(crate::parser::object::ObjRef::new(42, 0)));
|
||||
}
|
||||
_ => panic!("Expected FileAttachment specific fields"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_circle_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = AnnotationCommon {
|
||||
subtype: "Underline".to_string(),
|
||||
rect: Some([0.0, 0.0, 50.0, 10.0]),
|
||||
contents: None, // No /Contents
|
||||
author: None,
|
||||
modified: None,
|
||||
color: None,
|
||||
opacity: None,
|
||||
flags: 0,
|
||||
name_id: None,
|
||||
subject: None,
|
||||
page_index: 1,
|
||||
};
|
||||
let common = make_common("Circle");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
|
||||
let result = extract_annotation(&dict, common);
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Other => {}
|
||||
_ => panic!("Expected Other specific fields for Circle"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_square_annotation() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = make_common("Square");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Other => {}
|
||||
_ => panic!("Expected Other specific fields for Square"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_unknown_subtype() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = make_common("UnknownSubtype");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "UnknownSubtype");
|
||||
|
||||
// Unknown subtypes should get Other specific fields
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::Other => {}
|
||||
_ => panic!("Expected Other specific fields for unknown subtype"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_quad_array_invalid_length() {
|
||||
// QuadPoints with invalid length (not divisible by 8)
|
||||
let arr = vec![
|
||||
PdfObject::Real(1.0),
|
||||
PdfObject::Real(2.0),
|
||||
PdfObject::Real(3.0),
|
||||
];
|
||||
|
||||
let result = extract_quad_array(&PdfObject::Array(Box::new(arr)));
|
||||
assert!(result.is_none());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_quad_array_single_quad() {
|
||||
let arr = vec![
|
||||
PdfObject::Real(0.0),
|
||||
PdfObject::Real(1.0),
|
||||
PdfObject::Real(2.0),
|
||||
PdfObject::Real(3.0),
|
||||
PdfObject::Real(4.0),
|
||||
PdfObject::Real(5.0),
|
||||
PdfObject::Real(6.0),
|
||||
PdfObject::Real(7.0),
|
||||
];
|
||||
|
||||
let result = extract_quad_array(&PdfObject::Array(Box::new(arr)));
|
||||
assert!(result.is_some());
|
||||
let quads = result.unwrap();
|
||||
assert_eq!(quads.len(), 1);
|
||||
assert_eq!(quads[0], [0.0, 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_extract_quad_array_with_nulls() {
|
||||
// Null values in the quad array should be skipped
|
||||
let arr = vec![
|
||||
PdfObject::Real(0.0),
|
||||
PdfObject::Real(1.0),
|
||||
PdfObject::Null, // This quad should be skipped
|
||||
PdfObject::Real(3.0),
|
||||
PdfObject::Real(4.0),
|
||||
PdfObject::Real(5.0),
|
||||
PdfObject::Real(6.0),
|
||||
PdfObject::Real(7.0),
|
||||
PdfObject::Real(8.0),
|
||||
PdfObject::Real(9.0),
|
||||
PdfObject::Real(10.0),
|
||||
PdfObject::Real(11.0),
|
||||
PdfObject::Real(12.0),
|
||||
PdfObject::Real(13.0),
|
||||
PdfObject::Real(14.0),
|
||||
PdfObject::Real(15.0),
|
||||
];
|
||||
|
||||
let result = extract_quad_array(&PdfObject::Array(Box::new(arr)));
|
||||
assert!(result.is_some());
|
||||
let quads = result.unwrap();
|
||||
// Only the second valid quad should be extracted
|
||||
assert_eq!(quads.len(), 1);
|
||||
assert_eq!(quads[0], [8.0, 9.0, 10.0, 11.0, 12.0, 13.0, 14.0, 15.0]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_as_f32_with_real() {
|
||||
let obj = PdfObject::Real(42.5);
|
||||
assert_eq!(as_f32(&obj), Some(42.5_f32));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_as_f32_with_int() {
|
||||
let obj = PdfObject::Integer(42);
|
||||
assert_eq!(as_f32(&obj), Some(42.0_f32));
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_as_f32_with_null() {
|
||||
let obj = PdfObject::Null;
|
||||
assert_eq!(as_f32(&obj), None);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_squiggly_subtype() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = make_common("Squiggly");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Squiggly");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::TextMarkup { .. } => {}
|
||||
_ => panic!("Expected TextMarkup for Squiggly"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_strikeout_subtype() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = make_common("StrikeOut");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "StrikeOut");
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::TextMarkup { .. } => {}
|
||||
_ => panic!("Expected TextMarkup for StrikeOut"),
|
||||
}
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_underline_subtype() {
|
||||
let resolver = make_resolver();
|
||||
let dict = IndexMap::new();
|
||||
|
||||
let common = make_common("Underline");
|
||||
let result = extract_annotation(&dict, common, &resolver);
|
||||
assert!(result.is_some());
|
||||
let annotation = result.unwrap();
|
||||
assert_eq!(annotation.common.subtype, "Underline");
|
||||
assert!(annotation.common.contents.is_none());
|
||||
|
||||
match annotation.specific {
|
||||
AnnotationSpecific::TextMarkup { .. } => {}
|
||||
_ => panic!("Expected TextMarkup for Underline"),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1027,16 +1027,22 @@ fn handle_do_operator(
|
|||
};
|
||||
|
||||
let (stream_dict, subtype_opt, content_bytes) = match xobject_obj {
|
||||
XObjectResolveResult::Stream(dict, content) => (dict, dict.get("/Subtype"), content),
|
||||
XObjectResolveResult::Stream(dict, content) => {
|
||||
let subtype_str = dict
|
||||
.get("/Subtype")
|
||||
.and_then(|o| o.as_name())
|
||||
.map(|s| s.to_string());
|
||||
(dict, subtype_str, content)
|
||||
}
|
||||
XObjectResolveResult::Error(diag) => {
|
||||
diagnostics.push(diag);
|
||||
return;
|
||||
}
|
||||
};
|
||||
|
||||
let subtype = match subtype_opt {
|
||||
Some(PdfObject::Name(s)) if s.as_ref() == "Form" => "Form",
|
||||
Some(PdfObject::Name(s)) if s.as_ref() == "Image" => "Image",
|
||||
let subtype = match subtype_opt.as_deref() {
|
||||
Some("Form") => "Form",
|
||||
Some("Image") => "Image",
|
||||
Some(_) => {
|
||||
diagnostics.push(Diagnostic::with_dynamic_no_offset(
|
||||
DiagCode::StructInvalidType,
|
||||
|
|
|
|||
66
notes/pdftract-3r77.md
Normal file
66
notes/pdftract-3r77.md
Normal file
|
|
@ -0,0 +1,66 @@
|
|||
# Verification Note: pdftract-3r77
|
||||
|
||||
## Bead
|
||||
7.6.3: Non-link annotation extractor (Highlight/Stamp/FreeText/Note/etc.)
|
||||
|
||||
## Summary
|
||||
Implemented subtype-specific field extraction for non-link annotations.
|
||||
|
||||
## Changes Made
|
||||
|
||||
### 1. Annotation Struct Enhancement
|
||||
- Added `AnnotationSpecific` enum to capture subtype-specific fields:
|
||||
- `TextMarkup` - for Highlight/Squiggly/StrikeOut/Underline with `/QuadPoints`
|
||||
- `Stamp` - for `/Name` icon name
|
||||
- `FreeText` - for `/DA` default appearance string
|
||||
- `Text` - for sticky notes with `/Open`, `/State`, `/StateModel`
|
||||
- `Ink` - for `/InkList` stroke paths
|
||||
- `Line` - for `/L` endpoints
|
||||
- `Polygon` - for `/Vertices`
|
||||
- `FileAttachment` - for `/FS` filespec reference
|
||||
- `Other` - for Circle, Square, Caret, Redact, Sound, Movie, Screen, PrinterMark, TrapNet, Watermark, 3D
|
||||
|
||||
### 2. Implementation Files
|
||||
- `crates/pdftract-core/src/annotation/other.rs` - Complete rewrite with subtype-specific extraction
|
||||
- `crates/pdftract-core/src/annotation/mod.rs` - Updated dispatcher to pass resolver
|
||||
|
||||
### 3. Test Coverage
|
||||
Added comprehensive unit tests for:
|
||||
- Highlight with QuadPoints
|
||||
- Stamp with /Name "Approved"
|
||||
- FreeText with /DA
|
||||
- Text (sticky note) with /Open, /State, /StateModel
|
||||
- Ink with multiple strokes
|
||||
- Line with endpoints
|
||||
- Polygon/PolyLine with vertices
|
||||
- FileAttachment with /FS reference
|
||||
- Circle, Square (Other type)
|
||||
- Unknown subtypes
|
||||
- Edge cases (no quads, no name, invalid arrays)
|
||||
|
||||
## Acceptance Criteria Status
|
||||
|
||||
- [PASS] Critical test: page with Highlight and Note - both extract with correct subtypes
|
||||
- [PASS] Critical test: annotation with no /Contents -> contents: None
|
||||
- [PASS] Unit tests: Highlight with QuadPoints
|
||||
- [PASS] Unit tests: Stamp with /Name "Approved"
|
||||
- [PASS] Unit tests: FreeText with /DA
|
||||
- [PASS] Unit tests: Ink with multiple strokes
|
||||
- [PASS] Public extract_annotation(AnnotationCommon, dict, resolver) -> Annotation
|
||||
- [PASS] INV: subtype taxonomy stable (all subtypes preserved as-is)
|
||||
|
||||
## Compilation Status
|
||||
- [PASS] cargo check --all-targets
|
||||
- [PASS] cargo fmt
|
||||
- [WARN] cargo clippy has pre-existing warnings in other modules (not introduced by this change)
|
||||
|
||||
## Notes
|
||||
- Preserved original /Subtype name casing (do not normalize to lowercase per spec)
|
||||
- /QuadPoints format is (x1,y1, x2,y2, x3,y3, x4,y4) per quad in reading order
|
||||
- Color array length varies (1, 3, or 4) and is preserved as-is
|
||||
- Unknown subtypes emit with AnnotationSpecific::Other (no diagnostic in current implementation)
|
||||
|
||||
## Related Files
|
||||
- crates/pdftract-core/src/annotation/other.rs
|
||||
- crates/pdftract-core/src/annotation/mod.rs
|
||||
- crates/pdftract-core/src/content_stream.rs (fixed pre-existing borrow issue)
|
||||
Loading…
Add table
Reference in a new issue