Enable glyph block filtering and dependency tracker.

font-src/support/geometry/index.mjs

@@ -17,6 +17,9 @@ export class GeometryBase {
 	asReferences() {
 		throw new Error("Unimplemented");
 	}
+	getDependencies() {
+		throw new Error("Unimplemented");
+	}
 	unlinkReferences() {
 		return this;
 	}
@@ -51,6 +54,9 @@ export class ContourGeometry extends GeometryBase {
 	asReferences() {
 		return null;
 	}
+	getDependencies() {
+		return null;
+	}
 	filterTag(fn) {
 		return this;
 	}
@@ -89,6 +95,9 @@ export class SpiroGeometry extends GeometryBase {
 	asReferences() {
 		return null;
 	}
+	getDependencies() {
+		return null;
+	}
 	filterTag(fn) {
 		return this;
 	}
@@ -161,6 +170,9 @@ export class DiSpiroGeometry extends GeometryBase {
 	asReferences() {
 		return null;
 	}
+	getDependencies() {
+		return null;
+	}
 	filterTag(fn) {
 		return this;
 	}
@@ -206,6 +218,9 @@ export class ReferenceGeometry extends GeometryBase {
 		if (this.isEmpty()) return [];
 		return [{ glyph: this.m_glyph, x: this.m_x, y: this.m_y }];
 	}
+	getDependencies() {
+		return [this.m_glyph];
+	}
 	filterTag(fn) {
 		if (this.isEmpty()) return null;
 		return this.unwrap().filterTag(fn);
@@ -239,6 +254,9 @@ export class TaggedGeometry extends GeometryBase {
 	asReferences() {
 		return this.m_geom.asReferences();
 	}
+	getDependencies() {
+		return this.m_geom.getDependencies();
+	}
 	filterTag(fn) {
 		if (!fn(this.m_tag)) return null;
 		else return new TaggedGeometry(this.m_geom.filterTag(fn), this.m_tag);
@@ -281,6 +299,9 @@ export class TransformedGeometry extends GeometryBase {
 			result.push({ glyph, x: x + this.m_transform.x, y: y + this.m_transform.y });
 		return result;
 	}
+	getDependencies() {
+		return this.m_geom.getDependencies();
+	}
 	filterTag(fn) {
 		const e = this.m_geom.filterTag(fn);
 		if (!e) return null;
@@ -330,6 +351,9 @@ export class RadicalGeometry extends GeometryBase {
 	asReferences() {
 		return null;
 	}
+	getDependencies() {
+		return this.m_geom.getDependencies();
+	}
 	filterTag(fn) {
 		const e = this.m_geom.filterTag(fn);
 		if (!e) return null;
@@ -383,6 +407,15 @@ export class CombineGeometry extends GeometryBase {
 		}
 		return results;
 	}
+	getDependencies() {
+		let results = [];
+		for (const part of this.m_parts) {
+			const rs = part.getDependencies();
+			if (!rs) continue;
+			for (const c of rs) results.push(c);
+		}
+		return results;
+	}
 	filterTag(fn) {
 		let filtered = [];
 		for (const part of this.m_parts) {
@@ -454,6 +487,15 @@ export class BooleanGeometry extends GeometryBase {
 	asReferences() {
 		return null;
 	}
+	getDependencies() {
+		let results = [];
+		for (const part of this.m_operands) {
+			const rs = part.getDependencies();
+			if (!rs) continue;
+			for (const c of rs) results.push(c);
+		}
+		return results;
+	}
 	filterTag(fn) {
 		let filtered = [];
 		for (const operand of this.m_operands) {