AI_Assistant/cad-editor
Watch
1
0
Fork
You've already forked cad-editor
 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

feat(fonts): switch the text engine from CXF to LibreCAD LFF fonts

Browse source 
Replace the small QCAD CXF stroke-font set with the full LibreCAD LFF font
library (46 fonts) and a new LFF parser/engine in src/scene/lff.rs. The
parser reads the `[hex] char` glyph blocks, tessellates `,A<bulge>` arcs, and
resolves `C<hex>` glyph references. Per LibreCAD's RS_Polyline convention a
vertex's bulge curves the segment ending at that vertex — getting this wrong
turned round letters like O into sideways capsules.

Font name resolution mirrors LibreCAD: match by file stem, map common
AutoCAD/DXF SHX names (txt, isocp, complex, italic, gothic*, gost, …) to the
nearest LFF family, and fall back to `standard`. A missing glyph in the chosen
family falls back to the broad `unicode` font so accented/Cyrillic/Greek text
still renders. Cap height stays 9 units, so the text scale is unchanged.

All text consumers move from cxf:: to lff::; complex linetypes still render
embedded text but no longer draw embedded shapes (LibreCAD ships no shape
file). The CXF module and every *.cxf asset are removed, and the MText / text
style font pickers list the LFF families.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-05-31 03:31:20 +03:00
commit c1b33677e2
98 changed files with 886126 additions and 47228 deletions
Download patch file Download diff file Expand all files Collapse all files

4
src/entities/text.rs
View file

@ -8,7 +8,7 @@ use crate::entities::text_support::{
};
use crate::entities::traits::{Grippable, PropertyEditable, Transformable, TruckConvertible};
use crate::scene::acad_to_truck::{TextStroke, TruckEntity, TruckObject};
use crate::scene::cxf;
use crate::scene::lff;
use crate::scene::object::{GripApply, GripDef, PropSection, PropValue, Property};
use crate::scene::wire_model::SnapHint;
@ -131,7 +131,7 @@ fn to_truck(t: &Text, document: &acadrust::CadDocument) -> TruckEntity {
anchor_f64[1] - (anchor_local_x as f64 * sin_r + anchor_local_y as f64 * cos_r),
];
// Strokes are in glyph-local space (origin = [0,0]).
let strokes = cxf::tessellate_text_ex(
let strokes = lff::tessellate_text_ex(
[0.0, 0.0],
t.height as f32,
rotation,