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Make Galleys share Rows and store their offsets

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This commit is contained in:
Hubert Głuchowski
2024-11-28 17:40:59 +01:00
parent 150c0f662b
commit db32a1ed44
13 changed files with 174 additions and 127 deletions
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36
crates/epaint/src/text/fonts.rs
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@@ -832,34 +832,14 @@ impl GalleyCache {
for galley in galleys {
let current_offset = emath::vec2(0.0, merged_galley.rect.height());
merged_galley.rows.extend(galley.rows.iter().map(|row| {
super::Row {
// FIXME: what is this???
section_index_at_start: row.section_index_at_start,
glyphs: row
.glyphs
.iter()
.cloned()
.map(|mut p| {
p.pos.y += current_offset.y;
p
})
.collect(),
rect: row.rect.translate(current_offset),
visuals: {
let mut visuals = row.visuals.clone();
for vertex in visuals.mesh.vertices.iter_mut() {
vertex.pos.y += current_offset.y;
}
visuals.mesh_bounds =
visuals.mesh_bounds.translate(current_offset);
merged_galley.mesh_bounds =
merged_galley.mesh_bounds.union(visuals.mesh_bounds);
visuals
},
ends_with_newline: row.ends_with_newline,
}
}));
merged_galley
.rows
.extend(galley.rows.iter().map(|(row, prev_offset)| {
merged_galley.mesh_bounds =
merged_galley.mesh_bounds.union(row.visuals.mesh_bounds);
(row.clone(), *prev_offset + current_offset)
}));
merged_galley.rect = merged_galley
.rect
.union(galley.rect.translate(current_offset));