forked from 1b-agent/opencadstudio-upstream
Hakan SevenandClaude Opus 4.7
f12e864aa6
Replace the line-based MTEXT pipeline with a run-aware parser + renderer.
Every DXF MTEXT inline code now reaches the stroke output: \H \W \Q \T \A
\C \c \f \F \M \X, the \p block (q/i/l/r/t/s), brace-scoped state, and
the \L\l \O\o \K\k decoration toggles.
Parser ([text_support]): emits Vec<MTextLine{ runs, align, indent_*,
tab_stops }> with per-run RunState; braces scope character state, paragraph
props persist across them.
Renderer ([mtext]): atomise → wrap → render. Per-run height/width/oblique/
tracking/font/colour/decorations/valign; paragraph indents and tab stops
honoured; default 4-em tab fallback.
Plumbing: tessellate() now returns Vec<WireModel>; TextStroke gains an
optional inline-colour override so per-run \C/\c emits one wire per colour.
cxf::tessellate_text_run adds a tracking multiplier. block_cache folds
multi-wire results into a single LocalWire (colour split preserved at
top-level, flattened inside cached defns).
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
367 lines
14 KiB
Rust
367 lines
14 KiB
Rust
use acadrust::entities::Tolerance;
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use glam::Vec3;
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use crate::command::EntityTransform;
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use crate::entities::common::{edit_prop as edit, ro_prop as ro, square_grip};
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use crate::entities::traits::{Grippable, PropertyEditable, Transformable, TruckConvertible};
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use crate::scene::acad_to_truck::{TextStroke, TruckEntity, TruckObject};
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use crate::scene::object::{GripApply, GripDef, PropSection};
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use crate::scene::wire_model::SnapHint;
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use crate::scene::{cxf, transform};
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// ── GDT text parser ───────────────────────────────────────────────────────────
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/// Parse a DXF tolerance text string into rows of cell strings.
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///
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/// DXF format: `{\Fgdt;p}%%v0.5%%vA%%vB%%v%%v^J{\Fgdt;j}%%v0.1%%vA%%v%%v%%v`
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/// - `^J` → row separator
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/// - `%%v` → cell separator within a row
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/// - `{\Fgdt;X}` → GDT symbol X (mapped to a text label)
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fn parse_gdt_rows(raw: &str) -> Vec<Vec<String>> {
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raw.split("^J")
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.filter(|row| !row.trim().is_empty())
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.map(|row| {
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row.split("%%v")
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.map(|cell| substitute_gdt_codes(cell.trim()))
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.collect()
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})
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.collect()
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}
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/// Replace `{\Fgdt;X}` sequences with a short ASCII label and strip other
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/// MTEXT-style format codes `{\...}`.
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fn substitute_gdt_codes(s: &str) -> String {
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let mut out = String::new();
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let mut chars = s.chars().peekable();
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while let Some(ch) = chars.next() {
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if ch == '{' {
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// Collect to closing '}'
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let mut inner = String::new();
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let mut depth = 1usize;
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for c in chars.by_ref() {
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match c {
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'{' => {
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depth += 1;
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inner.push(c);
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}
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'}' => {
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depth -= 1;
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if depth == 0 {
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break;
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}
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inner.push(c);
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}
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_ => {
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inner.push(c);
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}
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}
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}
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// Is it a GDT font switch?
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if let Some(rest) = inner.strip_prefix("\\Fgdt;") {
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// rest is the symbol letter(s)
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if let Some(sym_char) = rest.chars().next() {
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out.push_str(gdt_char_to_ascii(sym_char));
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}
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}
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// other format codes: skip
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} else {
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out.push(ch);
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}
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}
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out
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}
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/// Map a GDT font character to a short ASCII approximation.
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fn gdt_char_to_ascii(c: char) -> &'static str {
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match c {
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'a' => "SRT", // Straightness
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'b' => "FLT", // Flatness
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'c' => "FLT", // Flatness
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'd' => "PSF", // Profile of Surface
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'e' => "CYL", // Cylindricity
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'f' => "PRL", // Profile of Line
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'g' => "CIR", // Circularity
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'h' => "PAR", // Parallelism
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'i' => "SYM", // Symmetry
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'j' => "PRP", // Perpendicularity
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'k' => "PLN", // Profile of Line
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'l' => "(L)", // LMC
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'm' => "(M)", // MMC / Diameter
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'n' => "ANG", // Angularity
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'o' => "(o)", // at maximum material boundary
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'p' => "POS", // Position
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'q' => "(q)",
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'r' => "RUN", // Circular Runout
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's' => "(S)", // RFS / Regardless of Feature Size
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't' => "TRN", // Total Runout
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'u' => "CON", // Concentricity
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'v' => "(v)",
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'w' => "(w)",
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_ => "?",
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}
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}
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// ── Feature-control frame builder ─────────────────────────────────────────────
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/// Tessellate a Tolerance entity into CXF-style polyline output.
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///
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/// Returns (`box_lines`, `text_strokes`) where:
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/// - `box_lines` — 3-D line segments forming the outer border and dividers
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/// - `text_strokes` — 2-D polylines from the CXF tessellator
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///
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/// Since TruckObject has either Lines (3-D) or Text (2-D CXF), we render the
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/// box frame via a separate Lines path (added by the caller) and the text cells
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/// via the Text path. For simplicity this function packs everything into a
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/// single Vec<Vec<[f32;2]>> by projecting the box lines to 2-D and using NaN
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/// polylines as separators — exactly what the Text wire-builder does.
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fn tessellate_tolerance(tol: &Tolerance) -> Vec<Vec<[f32; 2]>> {
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if tol.text.is_empty() {
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return vec![];
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}
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let rows = parse_gdt_rows(&tol.text);
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if rows.is_empty() {
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return vec![];
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}
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// ── Metrics ──────────────────────────────────────────────────────────
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let h = if tol.text_height > 1e-6 {
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tol.text_height as f32
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} else {
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2.5_f32
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};
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// DIMGAP — stored on the entity (resolved from the dim style at creation).
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// Fall back to AutoCAD's 0.35 × height convention only when missing.
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let gap = if tol.dimension_gap > 1e-6 {
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tol.dimension_gap as f32
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} else {
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(h * 0.35).max(0.1)
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};
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let cell_h = h + 2.0 * gap;
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let char_w = h * 0.65;
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let min_cell_w = h * 1.4;
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// Column widths: max across all rows
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let max_cols = rows.iter().map(|r| r.len()).max().unwrap_or(0);
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let mut col_widths: Vec<f32> = vec![0.0_f32; max_cols];
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for row in &rows {
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for (ci, cell) in row.iter().enumerate() {
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let w = (cell.len() as f32 * char_w).max(min_cell_w);
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if ci < col_widths.len() {
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col_widths[ci] = col_widths[ci].max(w);
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}
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}
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}
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let total_w: f32 = col_widths.iter().sum();
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let total_h = cell_h * rows.len() as f32;
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// ── Transform helpers (local space — translation applied in tessellate.rs) ──
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let angle = (tol.direction.y as f32).atan2(tol.direction.x as f32);
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let (sa, ca) = angle.sin_cos();
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// Rotate only; origin is kept as f64 and applied later with full precision.
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let rot = |x: f32, y: f32| -> [f32; 2] { [x * ca - y * sa, x * sa + y * ca] };
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let mut out: Vec<Vec<[f32; 2]>> = Vec::new();
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// ── Outer border ──────────────────────────────────────────────────────
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out.push(vec![
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rot(0.0, 0.0),
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rot(total_w, 0.0),
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rot(total_w, total_h),
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rot(0.0, total_h),
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rot(0.0, 0.0),
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]);
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// ── Row separators ─────────────────────────────────────────────────────
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for ri in 1..rows.len() {
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let y = cell_h * ri as f32;
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out.push(vec![rot(0.0, y), rot(total_w, y)]);
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}
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// ── Column dividers ────────────────────────────────────────────────────
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let mut x_cursor = 0.0_f32;
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for ci in 0..col_widths.len().saturating_sub(1) {
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x_cursor += col_widths[ci];
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for ri in 0..rows.len() {
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if ci + 1 < rows[ri].len() {
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let y0 = cell_h * ri as f32;
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let y1 = y0 + cell_h;
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out.push(vec![rot(x_cursor, y0), rot(x_cursor, y1)]);
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}
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}
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}
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// ── Text content per cell ─────────────────────────────────────────────
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for (ri, row) in rows.iter().enumerate() {
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let row_y = cell_h * ri as f32 + gap;
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let mut cell_x = 0.0_f32;
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for (ci, cell) in row.iter().enumerate() {
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let cw = if ci < col_widths.len() {
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col_widths[ci]
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} else {
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0.0
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};
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if !cell.is_empty() {
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let text_w = cell.len() as f32 * char_w;
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let tx = cell_x + (cw - text_w) * 0.5;
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// Tessellate text in local frame then transform
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let local_strokes =
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cxf::tessellate_text_ex([0.0, 0.0], h, 0.0, 1.0, 0.0, "txt", cell);
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for polyline in local_strokes {
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let transformed: Vec<[f32; 2]> = polyline
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.into_iter()
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.map(|[px, py]| rot(px + tx, py + row_y))
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.collect();
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if !transformed.is_empty() {
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out.push(transformed);
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}
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}
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}
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cell_x += cw;
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}
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}
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out
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}
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// ── TruckConvertible ──────────────────────────────────────────────────────────
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impl TruckConvertible for Tolerance {
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fn to_truck(&self, _document: &acadrust::CadDocument) -> Option<TruckEntity> {
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if self.text.is_empty() {
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return None;
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}
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let snap_pt = Vec3::new(
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self.insertion_point.x as f32,
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self.insertion_point.y as f32,
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self.insertion_point.z as f32,
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);
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// Build the feature-control frame in local space; origin stored as f64.
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let strokes = tessellate_tolerance(self);
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let origin = [self.insertion_point.x, self.insertion_point.y];
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Some(TruckEntity {
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object: TruckObject::Text(vec![TextStroke { strokes, origin, color: None }]),
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snap_pts: vec![(snap_pt, SnapHint::Insertion)],
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tangent_geoms: vec![],
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key_vertices: vec![],
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fill_tris: vec![],
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})
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}
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}
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// ── Grippable ─────────────────────────────────────────────────────────────────
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impl Grippable for Tolerance {
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fn grips(&self) -> Vec<GripDef> {
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vec![square_grip(
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0,
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Vec3::new(
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self.insertion_point.x as f32,
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self.insertion_point.y as f32,
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self.insertion_point.z as f32,
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),
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)]
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}
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fn apply_grip(&mut self, grip_id: usize, apply: GripApply) {
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if grip_id == 0 {
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match apply {
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GripApply::Translate(d) => {
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self.insertion_point.x += d.x as f64;
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self.insertion_point.y += d.y as f64;
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self.insertion_point.z += d.z as f64;
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}
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GripApply::Absolute(p) => {
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self.insertion_point.x = p.x as f64;
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self.insertion_point.y = p.y as f64;
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self.insertion_point.z = p.z as f64;
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}
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}
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}
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}
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}
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// ── PropertyEditable ──────────────────────────────────────────────────────────
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impl PropertyEditable for Tolerance {
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fn geometry_properties(&self, _text_style_names: &[String]) -> PropSection {
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PropSection {
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title: "Geometry".into(),
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props: vec![
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ro("Text", "tol_text", self.text.clone()),
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edit("Insert X", "tol_ix", self.insertion_point.x),
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edit("Insert Y", "tol_iy", self.insertion_point.y),
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edit("Insert Z", "tol_iz", self.insertion_point.z),
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ro(
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"Dim Style",
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"tol_dim_style",
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if self.dimension_style_name.is_empty() {
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"(default)".to_string()
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} else {
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self.dimension_style_name.clone()
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},
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),
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ro(
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"Dim Style Handle",
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"tol_dim_style_handle",
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match self.dimension_style_handle {
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Some(h) if !h.is_null() => format!("{:X}", h.value()),
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_ => "(none)".to_string(),
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},
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),
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edit("Text Height", "tol_text_height", self.text_height),
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edit("Dim Gap", "tol_dim_gap", self.dimension_gap),
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ro(
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"Direction",
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"tol_direction",
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format!(
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"{:.3}, {:.3}, {:.3}",
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self.direction.x, self.direction.y, self.direction.z
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),
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),
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ro(
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"Normal",
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"tol_normal",
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format!(
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"{:.3}, {:.3}, {:.3}",
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self.normal.x, self.normal.y, self.normal.z
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),
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),
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],
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}
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}
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fn apply_geom_prop(&mut self, field: &str, value: &str) {
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let Ok(v) = value.trim().parse::<f64>() else {
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return;
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};
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match field {
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"tol_ix" => self.insertion_point.x = v,
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"tol_iy" => self.insertion_point.y = v,
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"tol_iz" => self.insertion_point.z = v,
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"tol_text_height" if v > 0.0 => self.text_height = v,
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"tol_dim_gap" => self.dimension_gap = v,
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_ => {}
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}
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}
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}
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// ── Transformable ─────────────────────────────────────────────────────────────
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impl Transformable for Tolerance {
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fn apply_transform(&mut self, t: &EntityTransform) {
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transform::apply_standard_entity_transform(self, t, |entity, p1, p2| {
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transform::reflect_xy_point(
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&mut entity.insertion_point.x,
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&mut entity.insertion_point.y,
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p1,
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p2,
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);
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});
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}
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}
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