Organize support files and simplify imports

font-src/support/geometry/box.js

@@ -0,0 +1,49 @@
+"use strict";
+
+const { mix } = require("../utils");
+
+class Box {
+	constructor(t, b, l, r) {
+		this.top = t;
+		this.bottom = this.bot = b;
+		this.left = l;
+		this.right = r;
+		this.xMid = this.xMiddle = mix(l, r, 0.5);
+		this.yMid = this.yMiddle = mix(b, t, 0.5);
+	}
+
+	withTop(t) {
+		return new Box(t, this.bottom, this.left, this.right);
+	}
+	withBottom(b) {
+		return new Box(this.top, b, this.left, this.right);
+	}
+	withLeft(l) {
+		return new Box(this.top, this.bottom, l, this.right);
+	}
+	withRight(r) {
+		return new Box(this.top, this.bottom, this.left, r);
+	}
+
+	withXPadding(d) {
+		return new Box(this.top, this.bottom, this.left + d, this.right - d);
+	}
+	withYPadding(d) {
+		return new Box(this.top - d, this.bottom + d, this.left, this.right);
+	}
+
+	mixX(t) {
+		return mix(this.left, this.right, t);
+	}
+	mixXMidLeft(t) {
+		return mix(this.xMid, this.left, t);
+	}
+	mixXMidRight(t) {
+		return mix(this.xMid, this.right, t);
+	}
+	mixY(t) {
+		return mix(this.bottom, this.top, t);
+	}
+}
+
+exports.Box = Box;