replay method

Implementation

void replay(RitoPrimitiveList list, RitoPrimitiveTarget target) {
  var saveDepth = 0;
  try {
    for (final primitive in list.commands) {
      switch (primitive) {
        case RitoPrimitivePushState():
          target.save();
          saveDepth += 1;
        case RitoPrimitivePopState():
          if (saveDepth == 0) {
            throw const FormatException(
              'RITODL1 restore has no matching save.',
            );
          }
          target.restore();
          saveDepth -= 1;
        case RitoPrimitiveTranslate():
          target.translate(primitive);
        case RitoPrimitiveOpacity():
          target.opacity(primitive);
        case RitoPrimitiveTransform():
          target.transform(primitive);
        case RitoPrimitiveClipPath():
          target.clipPath(primitive);
        case RitoPrimitiveFillRect():
          target.fillRect(primitive);
        case RitoPrimitiveFillPath():
          target.fillPath(primitive);
        case RitoPrimitiveStrokePath():
          target.strokePath(primitive);
        case RitoPrimitiveShadow():
          target.shadow(primitive);
        case RitoPrimitiveDrawImage():
          target.drawImage(primitive);
        case RitoPrimitiveText():
          target.text(primitive);
        case RitoPrimitiveRuby():
          target.ruby(primitive);
      }
    }
    if (saveDepth != 0) {
      throw FormatException('RITODL1 leaves $saveDepth save states open.');
    }
  } finally {
    while (saveDepth > 0) {
      target.restore();
      saveDepth -= 1;
    }
  }
}