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:flutter/material.dart';
       6             : 
       7             : class AppZoom extends ValueNotifier<double> {
       8           3 :   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           3 :   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             : }