trySwitchChartTypeForSeriesShape function

ChartTypeSwitchResult trySwitchChartTypeForSeriesShape(Map<String, dynamic> source, { required ChartType targetType, bool force = false, bool registeredOnly = true, })

Attempts to switch source to targetType without throwing.

Direct same-shape switches succeed without force. Cross-shape conversions such as cartesian -> treemap/pie/candlestick require force: true.

Implementation

ChartTypeSwitchResult trySwitchChartTypeForSeriesShape(
  Map<String, dynamic> source, {
  required ChartType targetType,
  bool force = false,
  bool registeredOnly = true,
}) {
  final compatibility = chartSwitchCompatibilityForJson(
    source,
    targetType: targetType,
    registeredOnly: registeredOnly,
  );
  final canSwitch =
      compatibility.isCompatible ||
      (force && compatibility.forceConversionAvailable);

  if (!canSwitch) {
    return ChartTypeSwitchResult(
      success: false,
      targetType: targetType,
      compatibility: compatibility,
      payload: null,
      usedForceConversion: false,
      preservedRuntimeKeys: const [],
      changedTopLevelKeys: const [],
      message: compatibility.reason,
    );
  }

  final payload = switchChartTypeForSeriesShape(
    source,
    targetType: targetType,
    force: force,
  );

  return ChartTypeSwitchResult(
    success: true,
    targetType: targetType,
    compatibility: compatibility,
    payload: payload,
    usedForceConversion: !compatibility.isCompatible,
    preservedRuntimeKeys: _preservedRuntimeKeys(source, payload),
    changedTopLevelKeys: _changedTopLevelKeys(source, payload),
    message: compatibility.isCompatible
        ? 'Switched to ${chartTypeToString(targetType)} without data conversion.'
        : 'Switched to ${chartTypeToString(targetType)} using force conversion.',
  );
}