svg library

iconic_morph — SVG path reader

The zero-dependency SVG path-data reader that backs the whole engine, exposed as its own entry point for direct use. Turn a <path d="…"> string into moveTo / lineTo / cubicTo / close calls on your own SvgPathSink — relative coordinates, smooth and quadratic curves, and elliptical arcs are all normalized down to absolute cubics. No pub dependency, no flutter_svg, no async decode.

This is a deliberately separate library from the main iconic_morph.dart barrel: the barrel is the curated icon-animation API (morph, spin, draw-on), while this is the low-level parser for consumers that just want the reader.

import 'dart:ui';
import 'package:iconic_morph/svg.dart';

class _ToPath extends SvgPathSink {
  _ToPath(this.path);
  final Path path;
  @override void moveTo(double x, double y) => path.moveTo(x, y);
  @override void lineTo(double x, double y) => path.lineTo(x, y);
  @override void cubicTo(double x1, double y1, double x2, double y2,
      double x3, double y3) => path.cubicTo(x1, y1, x2, y2, x3, y3);
  @override void close() => path.close();
}

final path = Path();
parseSvgPathData('M4 12 A 8 8 0 0 1 20 12', _ToPath(path));

Classes

SvgPathSink

Receiver for the normalized output of parseSvgPathData. Only these four commands are ever emitted — every arc and quadratic is decomposed to cubics.

Functions

parseSvgPathData(String? d, SvgPathSink sink) → void

Parses d — the value of an SVG <path d="…"> attribute — and drives sink with the normalized drawing commands. Relative coordinates, smooth and quadratic curves, and elliptical arcs are all resolved down to absolute moveTo / lineTo / cubicTo / close. A null or empty d emits nothing.