generateResult method

Implementation

Future<List<ScanMatchCounter>> generateResult(
  List<ml_kit.TextBlock> textBlock,
  String text,
  Size imageSize,
) async {
  if (_busyGenerated) {
    return matchedCounterList;
  }
  _busyGenerated = true;

  List<ScanResult> newScanResult = await matchedResult(
    _convertTextBlocks(
      textBlock,
      imageSize,
    ),
    text,
  );

  /// We update the visibility counters of the MatchedCounter objects:
  /// - If still present in the new list, we up the counter
  /// - If not present, we down the counter and we delete if no longer visible
  List<ScanMatchCounter> matchedCounterListUpdated = [];
  for (var element in matchedCounterList) {
    bool found = false;
    for (var scanResult in newScanResult) {
      if (_matchedStringAndPosition(element.scanResult, scanResult)) {
        found = true;
        element.scanResult = scanResult;
        element.upCounter();
      }
    }
    if (!found) {
      element.downCounter();
    }

    if (element.visible) {
      matchedCounterListUpdated.add(element);
    }
  }
  matchedCounterList = matchedCounterListUpdated;

  /// We add the new unknown values in matchedCounterList
  for (var scanResult in newScanResult) {
    bool found = false;
    for (var element in matchedCounterList) {
      if (_matchedStringAndPosition(element.scanResult, scanResult)) {
        found = true;
      }
    }
    if (!found) {
      matchedCounterList.add(
        ScanMatchCounter(
          scanResult: scanResult,
          validateCountCorrelation: validateCountCorrelation,
          color: color,
        ),
      );
    }
  }
  _busyGenerated = false;
  return matchedCounterList;
}