getOrBuild method

Implementation

Path getOrBuild(StrokeNode node) {
  final points = node.points;
  if (points.length < 2) {
    throw StateError(
      'SceneStrokePathCache.getOrBuild requires points.length >= 2. '
      'Dots must be handled separately.',
    );
  }

  final firstPoint = points.first;
  final lastPoint = points.last;
  final cached = _entries.remove(node.id);
  if (cached != null &&
      cached.pointsLength == points.length &&
      cached.firstPoint == firstPoint &&
      cached.lastPoint == lastPoint) {
    _entries[node.id] = cached;
    _debugHitCount += 1;
    return cached.path;
  }

  final path = _buildStrokePath(points);
  _entries[node.id] = _StrokePathEntry(
    path: path,
    pointsLength: points.length,
    firstPoint: firstPoint,
    lastPoint: lastPoint,
  );
  _debugBuildCount += 1;
  _evictIfNeeded();
  return path;
}