Port from CRT to Vite

vite/src/pipedal/SvgPathBuilder.tsx

@@ -0,0 +1,51 @@
+// Copyright (c) 2022 Robin Davies
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+import StringBuilder from './StringBuilder';
+
+class SvgPathBuilder {
+    private _sb: StringBuilder = new StringBuilder();
+
+    moveTo(x: number, y: number): SvgPathBuilder
+    {
+        this._sb.append('M').append(x).append(',').append(y).append(' ');
+        return this;
+    }
+    lineTo(x: number, y: number): SvgPathBuilder
+    {
+        this._sb.append('L').append(x).append(',').append(y).append(' ');
+        return this;
+    }
+    bezierTo(x1: number, y1: number, x2: number, y2: number, x: number, y: number)
+    {
+        this._sb.append('C').append(x1).append(',').append(y1)
+            .append(' ').append(x2).append(',').append(y2)
+            .append(' ').append(x).append(',').append(y).append(' ');
+        return this;
+    }
+    closePath(): SvgPathBuilder {
+        this._sb.append("Z ");
+        return this;
+
+    }
+
+    toString(): string { return this._sb.toString(); }
+}
+
+export default SvgPathBuilder;