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switched to yaml as filee format

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Holger Börchers
2020-04-17 22:53:19 +02:00
parent 6cc2470a78
commit 8cb33b89fb
9 changed files with 54 additions and 59 deletions
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15
MvvmStuff/BaseViewModel.cs
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@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.CompilerServices;
using FastMember;
using Prism.Mvvm;
@ -21,7 +22,7 @@ namespace ModernWpfPlayground.MvvmStuff
protected bool SetProperty<T>(T value, Action<T>? onChanged = null,
[CallerMemberName] string? propertyName = null)
{
if(propertyName == null) throw new ArgumentNullException(nameof(propertyName));
if (propertyName == null) throw new ArgumentNullException(nameof(propertyName));
if (_values.TryGetValue(propertyName, out var obj) && Equals(value, obj)) return false;
_values[propertyName] = value!;
@ -33,12 +34,14 @@ namespace ModernWpfPlayground.MvvmStuff
protected T GetProperty<T>(T defaultValue = default, [CallerMemberName] string? propertyName = null)
{
if (propertyName == null) throw new ArgumentNullException(nameof(propertyName));
return Values.TryGetValue(propertyName, out var obj) ? (T) obj : defaultValue;
return Values.TryGetValue(propertyName, out var obj) ? (T)obj : defaultValue;
}
protected void ResetViewModel()
protected void ResetViewModel(Func<string, bool>? predicate = null)
{
foreach (var key in Values.Keys)
IEnumerable<string> keys = _values.Keys;
if (predicate != null) keys = keys.Where(predicate);
foreach (var key in keys)
{
_values.Remove(key);
RaisePropertyChanged(key);
@ -49,10 +52,14 @@ namespace ModernWpfPlayground.MvvmStuff
protected void LoadViewModel()
{
var keysFromFile = new SortedSet<string>();
foreach (var (key, value) in GetViewModelItems())
{
keysFromFile.Add(key);
ObjectAccessor[key] = value;
}
ResetViewModel(x => !keysFromFile.Contains(x));
}
}
}

20
MvvmStuff/DeserializationExtension.cs Normal file
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@ -0,0 +1,20 @@
using System;
using System.Globalization;
namespace ModernWpfPlayground.MvvmStuff
{
public static class DeserializationExtension
{
public static object? Convert(object? value, Type propertyType)
{
if (value is null) return Activator.CreateInstance(propertyType);
if (propertyType.IsEnum && value is string s)
{
return Enum.Parse(propertyType, s);
}
return System.Convert.ChangeType(value, propertyType, CultureInfo.InvariantCulture);
}
}
}

40
MvvmStuff/PropertyInfoExtension.cs
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@ -1,40 +0,0 @@
using System;
using System.Text.Json;
namespace ModernWpfPlayground.MvvmStuff
{
public static class PropertyInfoExtension
{
public static object? Convert(this JsonElement value, Type propertyType)
{
if (propertyType == null) return default;
if (propertyType == typeof(double))
{
return value.GetDouble();
}
if (propertyType == typeof(bool))
{
return value.GetBoolean();
}
if (propertyType == typeof(int))
{
return value.GetInt32();
}
if (propertyType.IsEnum)
{
return Enum.ToObject(propertyType, value.GetInt32());
}
if (propertyType == typeof(string))
{
return value.GetString();
}
return default;
}
}
}