first commit

lib/Screens/Settings/sales settings/model/amount_rounding_dropdown_model.dart

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+import 'package:mobile_pos/generated/l10n.dart' as lang;
+
+class AmountRoundingDropdownModel {
+  late String value;
+  late String option;
+
+  AmountRoundingDropdownModel({required this.value, required this.option});
+}
+
+final List<AmountRoundingDropdownModel> roundingMethods = [
+  AmountRoundingDropdownModel(value: 'none', option: lang.S.current.none),
+  AmountRoundingDropdownModel(value: 'round_up', option: lang.S.current.roundToWholeNumber),
+  AmountRoundingDropdownModel(value: 'nearest_whole_number', option: lang.S.current.roundToNearestWholeNumber),
+  AmountRoundingDropdownModel(value: 'nearest_0.05', option: lang.S.current.roundToNearnessDecimalNumber005),
+  AmountRoundingDropdownModel(value: 'nearest_0.1', option: lang.S.current.roundToNearnessDecimalNumber01),
+  AmountRoundingDropdownModel(value: 'nearest_0.5', option: lang.S.current.roundToNearnessDecimalNumber05),
+];
+
+num roundNumber({required num value, required String roundingType}) {
+  switch (roundingType) {
+    case "none":
+      return value;
+
+    case "round_up":
+      return value.ceilToDouble();
+
+    case "nearest_whole_number":
+      return value.roundToDouble();
+
+    case "nearest_0.05":
+      return (value / 0.05).round() * 0.05;
+
+    case "nearest_0.1":
+      return (value / 0.1).round() * 0.1;
+
+    case "nearest_0.5":
+      return (value / 0.5).round() * 0.5;
+
+    default:
+      return value;
+  }
+}