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feat(pdf): searchable text layer with per-style subset font embedding

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Real BT/Tj text objects ride alongside the vector outlines (Tr 3,
zero visual change): runs preserved at layout time, TTF styles embedded
as allsorts subsets with ToUnicode, width-matched Tm, clip-culled.
WireModel literals moved to ..Default::default() tails.
This commit is contained in:
Karim Jerbi committed 2026-10-01 23:30:35 +01:00
1 parent 443b935a3f
commit 02c470aac7
44 files changed
+1534 -127
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src/entities/multileader.rs
+45 -15
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@@ -2106,7 +2106,9 @@ impl MultiLeaderTess for MultiLeader {
// error at UTM scale) — not a crash. Follow-up: double-single-split
// via points_to_ds to match emit_wire's paired fill path.
fill_tris_low: Vec::new(),
});
..Default::default()
});
let host = codec::EntityType::MultiLeader(Box::new(ml.clone()));
for block_use in crate::scene::render_graph::entity_render_block_uses(document, &host, 1.0)
@@ -2299,6 +2301,8 @@ impl MultiLeaderTess for MultiLeader {
// cluster-position data.
let mut deco_pts: Vec<[f32; 3]> = Vec::new();
let mut deco_fill: Vec<[f32; 3]> = Vec::new();
let mut searchable: Vec<crate::scene::model::wire_model::SearchableTextRun> =
Vec::new();
if let Ok(mut atlas) = crate::scene::text::sdf_atlas::text_atlas().lock() {
for ts in &layout.strokes {
let is_shaped = ts
@@ -2331,17 +2335,18 @@ impl MultiLeaderTess for MultiLeader {
continue;
}
let run = ts.run.as_ref().unwrap();
let quads = crate::scene::text::glyph_quads::layout_glyph_quads(
&mut atlas,
run.height,
run.rotation,
run.width_factor,
run.oblique,
run.tracking,
&run.font,
run.bold,
&run.text,
);
let (quads, pen_adv) =
crate::scene::text::glyph_quads::layout_glyph_quads(
&mut atlas,
run.height,
run.rotation,
run.width_factor,
run.oblique,
run.tracking,
&run.font,
run.bold,
&run.text,
);
// Inline `\C` / `\c` colour wins over the entity text
// colour, matching the top-level Text arm.
let gcolor = ts
@@ -2356,6 +2361,24 @@ impl MultiLeaderTess for MultiLeader {
gcolor,
0.0,
);
{
use crate::scene::model::wire_model::{
clean_searchable_text, SearchableTextRun,
};
let visible = clean_searchable_text(&run.text);
if !visible.is_empty() {
searchable.push(SearchableTextRun {
text: visible,
origin: [ts.origin[0], ts.origin[1], z as f64],
height: run.height,
rotation: run.rotation,
color: gcolor,
bold: run.bold,
font: run.font.clone(),
adv_width: pen_adv,
});
}
}
}
}
if !sdf_verts.is_empty() || !deco_pts.is_empty() || !deco_fill.is_empty() {
@@ -2400,6 +2423,7 @@ impl MultiLeaderTess for MultiLeader {
dash_from_start: false,
dash_align_end: None,
text_verts: sdf_verts,
searchable_text: searchable,
name: name.clone(),
points: deco_pts,
points_low: Vec::new(),
@@ -2492,7 +2516,9 @@ impl MultiLeaderTess for MultiLeader {
plinegen: true,
fill_tris: vec![],
fill_tris_low: Vec::new(),
});
..Default::default()
});
}
}
@@ -2583,7 +2609,9 @@ impl MultiLeaderTess for MultiLeader {
plinegen: true,
fill_tris,
fill_tris_low: Vec::new(),
});
..Default::default()
});
}
// Text frame — closed rectangle, matches text color.
@@ -2629,7 +2657,9 @@ impl MultiLeaderTess for MultiLeader {
plinegen: true,
fill_tris: vec![],
fill_tris_low: Vec::new(),
});
..Default::default()
});
}
}
}