62 lines
1.9 KiB
C#
62 lines
1.9 KiB
C#
using System;
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using System.IO;
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using System.Reflection;
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using System.Windows.Forms;
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using Newtonsoft.Json;
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namespace BizHawk.MultiClient
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{
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public static class ConfigService
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{
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public static T Load<T>(string filepath, T currentConfig) where T : new()
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{
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T config = new T();
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try
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{
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var file = new FileInfo(filepath);
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if (file.Exists)
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using (var reader = file.OpenText())
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{
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var s = new JsonSerializer {SuppressMissingMemberException = true};
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var r = new JsonReader(reader);
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config = (T)s.Deserialize(r, typeof(T));
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}
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}
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catch (Exception e) { MessageBox.Show(e.ToString()); }
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if (config == null) return new T();
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//patch up arrays in the config with the minimum number of things
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foreach(var fi in typeof(T).GetFields(BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Public))
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if (fi.FieldType.IsArray)
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{
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Array aold = fi.GetValue(currentConfig) as Array;
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Array anew = fi.GetValue(config) as Array;
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if (aold.Length == anew.Length) continue;
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//create an array of the right size
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Array acreate = Array.CreateInstance(fi.FieldType.GetElementType(), Math.Max(aold.Length,anew.Length));
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//copy the old values in, (presumably the defaults), and then copy the new ones on top
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Array.Copy(aold, acreate, Math.Min(aold.Length,acreate.Length));
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Array.Copy(anew, acreate, Math.Min(anew.Length, acreate.Length));
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//stash it into the config struct
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fi.SetValue(config, acreate);
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}
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return config;
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}
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public static void Save(string filepath, object config)
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{
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var file = new FileInfo(filepath);
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using (var writer = file.CreateText())
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{
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var s = new JsonSerializer();
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var w = new JsonWriter(writer) { Formatting = Formatting.Indented };
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s.Serialize(w, config);
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}
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}
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}
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} |