Line data    Source code

       1              : // Copyright 2023 The terCAD team. All rights reserved.
       2              : // Use of this source code is governed by a CC BY-NC-ND 4.0 license that can be found in the LICENSE file.
       3              : 
       4              : import 'package:app_finance/_classes/storage/app_preferences.dart';
       5              : import 'package:material_ui/material_ui.dart';
       6              : 
       7              : class AppZoom extends ValueNotifier<double> {
       8           18 :   static get state => double.tryParse(AppPreferences.get(AppPreferences.prefZoom) ?? '') ?? 1.0;
       9              :   static const double max = 2.0;
      10              :   static const double min = 0.6;
      11              : 
      12           18 :   AppZoom() : super(state);
      13              : 
      14            0 :   Future<void> set(double newValue) async {
      15            0 :     newValue = newValue.clamp(min, max);
      16            0 :     if (newValue != value) {
      17            0 :       value = newValue;
      18            0 :       await AppPreferences.set(AppPreferences.prefZoom, value.toString());
      19            0 :       notifyListeners();
      20              :     }
      21              :   }
      22              : }