715 lines
21 KiB
C#
715 lines
21 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007-2015 The OpenRA Developers (see AUTHORS)
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation. For more information,
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* see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Globalization;
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using System.Linq;
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using System.Reflection;
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using System.Text.RegularExpressions;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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namespace OpenRA
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{
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public static class FieldLoader
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{
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public class MissingFieldsException : YamlException
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{
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public readonly string[] Missing;
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public readonly string Header;
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public override string Message
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{
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get
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{
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return (string.IsNullOrEmpty(Header) ? "" : Header + ": ") + Missing[0]
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+ string.Concat(Missing.Skip(1).Select(m => ", " + m));
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}
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}
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public MissingFieldsException(string[] missing, string header = null, string headerSingle = null) : base(null)
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{
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Header = missing.Length > 1 ? header : headerSingle ?? header;
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Missing = missing;
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}
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}
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public static Func<string, Type, string, object> InvalidValueAction = (s, t, f) =>
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{
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throw new YamlException("FieldLoader: Cannot parse `{0}` into `{1}.{2}` ".F(s, f, t));
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};
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public static Action<string, Type> UnknownFieldAction = (s, f) =>
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{
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throw new NotImplementedException("FieldLoader: Missing field `{0}` on `{1}`".F(s, f.Name));
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};
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static readonly ConcurrentCache<Type, FieldLoadInfo[]> TypeLoadInfo =
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new ConcurrentCache<Type, FieldLoadInfo[]>(BuildTypeLoadInfo);
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static readonly ConcurrentCache<MemberInfo, bool> MemberHasTranslateAttribute =
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new ConcurrentCache<MemberInfo, bool>(member => member.HasAttribute<TranslateAttribute>());
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static readonly object TranslationsLock = new object();
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static Dictionary<string, string> translations;
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public static void Load(object self, MiniYaml my)
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{
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var loadInfo = TypeLoadInfo[self.GetType()];
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var missing = new List<string>();
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Dictionary<string, MiniYaml> md = null;
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foreach (var fli in loadInfo)
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{
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object val;
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if (md == null)
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md = my.ToDictionary();
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if (fli.Loader != null)
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{
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if (!fli.Attribute.Required || md.ContainsKey(fli.YamlName))
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val = fli.Loader(my);
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else
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{
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missing.Add(fli.YamlName);
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continue;
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}
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}
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else
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{
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if (!TryGetValueFromYaml(fli.YamlName, fli.Field, md, out val))
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{
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if (fli.Attribute.Required)
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missing.Add(fli.YamlName);
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continue;
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}
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}
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fli.Field.SetValue(self, val);
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}
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if (missing.Any())
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throw new MissingFieldsException(missing.ToArray());
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}
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static bool TryGetValueFromYaml(string yamlName, FieldInfo field, Dictionary<string, MiniYaml> md, out object ret)
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{
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ret = null;
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MiniYaml yaml;
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if (!md.TryGetValue(yamlName, out yaml))
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return false;
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ret = GetValue(field.Name, field.FieldType, yaml, field);
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return true;
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}
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public static T Load<T>(MiniYaml y) where T : new()
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{
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var t = new T();
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Load(t, y);
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return t;
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}
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public static void LoadField(object target, string key, string value)
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{
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const BindingFlags Flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
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key = key.Trim();
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var field = target.GetType().GetField(key, Flags);
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if (field != null)
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{
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var sa = field.GetCustomAttributes<SerializeAttribute>(false).DefaultIfEmpty(SerializeAttribute.Default).First();
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if (!sa.FromYamlKey)
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field.SetValue(target, GetValue(field.Name, field.FieldType, value, field));
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return;
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}
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var prop = target.GetType().GetProperty(key, Flags);
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if (prop != null)
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{
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var sa = prop.GetCustomAttributes<SerializeAttribute>(false).DefaultIfEmpty(SerializeAttribute.Default).First();
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if (!sa.FromYamlKey)
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prop.SetValue(target, GetValue(prop.Name, prop.PropertyType, value, prop), null);
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return;
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}
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UnknownFieldAction(key, target.GetType());
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}
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public static T GetValue<T>(string field, string value)
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{
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return (T)GetValue(field, typeof(T), value, null);
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}
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public static object GetValue(string fieldName, Type fieldType, string value)
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{
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return GetValue(fieldName, fieldType, value, null);
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}
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public static object GetValue(string fieldName, Type fieldType, string value, MemberInfo field)
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{
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return GetValue(fieldName, fieldType, new MiniYaml(value), field);
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}
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public static object GetValue(string fieldName, Type fieldType, MiniYaml yaml, MemberInfo field)
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{
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var value = yaml.Value;
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if (value != null) value = value.Trim();
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if (fieldType == typeof(int))
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{
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int res;
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if (Exts.TryParseIntegerInvariant(value, out res))
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return res;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(ushort))
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{
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ushort res;
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if (ushort.TryParse(value, NumberStyles.Integer, NumberFormatInfo.InvariantInfo, out res))
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return res;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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if (fieldType == typeof(long))
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{
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long res;
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if (long.TryParse(value, NumberStyles.Integer, NumberFormatInfo.InvariantInfo, out res))
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return res;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(float))
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{
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float res;
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if (value != null && float.TryParse(value.Replace("%", ""), NumberStyles.Float, NumberFormatInfo.InvariantInfo, out res))
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return res * (value.Contains('%') ? 0.01f : 1f);
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(decimal))
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{
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decimal res;
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if (value != null && decimal.TryParse(value.Replace("%", ""), NumberStyles.Float, NumberFormatInfo.InvariantInfo, out res))
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return res * (value.Contains('%') ? 0.01m : 1m);
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(string))
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{
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if (field != null && MemberHasTranslateAttribute[field] && value != null)
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return Regex.Replace(value, "@[^@]+@", m => Translate(m.Value.Substring(1, m.Value.Length - 2)), RegexOptions.Compiled);
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return value;
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}
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else if (fieldType == typeof(Color))
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{
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Color color;
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if (value != null && HSLColor.TryParseRGB(value, out color))
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return color;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(Color[]))
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{
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if (value != null)
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{
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var parts = value.Split(',');
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var colors = new Color[parts.Length];
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for (var i = 0; i < colors.Length; i++)
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if (!HSLColor.TryParseRGB(parts[i], out colors[i]))
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return InvalidValueAction(value, fieldType, fieldName);
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return colors;
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(HSLColor))
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{
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if (value != null)
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{
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Color rgb;
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if (HSLColor.TryParseRGB(value, out rgb))
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return new HSLColor(rgb);
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// Allow old HSLColor/ColorRamp formats to be parsed as HSLColor
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var parts = value.Split(',');
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if (parts.Length == 3 || parts.Length == 4)
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return new HSLColor(
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(byte)Exts.ParseIntegerInvariant(parts[0]).Clamp(0, 255),
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(byte)Exts.ParseIntegerInvariant(parts[1]).Clamp(0, 255),
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(byte)Exts.ParseIntegerInvariant(parts[2]).Clamp(0, 255));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(Hotkey))
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{
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Hotkey res;
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if (Hotkey.TryParse(value, out res))
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return res;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WDist))
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{
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WDist res;
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if (WDist.TryParse(value, out res))
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return res;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WVec))
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{
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if (value != null)
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{
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var parts = value.Split(',');
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if (parts.Length == 3)
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{
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WDist rx, ry, rz;
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if (WDist.TryParse(parts[0], out rx) && WDist.TryParse(parts[1], out ry) && WDist.TryParse(parts[2], out rz))
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return new WVec(rx, ry, rz);
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}
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WVec[]))
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{
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if (value != null)
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{
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var parts = value.Split(',');
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if (parts.Length % 3 != 0)
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return InvalidValueAction(value, fieldType, fieldName);
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var vecs = new WVec[parts.Length / 3];
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for (var i = 0; i < vecs.Length; ++i)
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{
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WDist rx, ry, rz;
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if (WDist.TryParse(parts[3 * i], out rx) && WDist.TryParse(parts[3 * i + 1], out ry) && WDist.TryParse(parts[3 * i + 2], out rz))
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vecs[i] = new WVec(rx, ry, rz);
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}
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return vecs;
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WPos))
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{
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if (value != null)
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{
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var parts = value.Split(',');
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if (parts.Length == 3)
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{
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WDist rx, ry, rz;
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if (WDist.TryParse(parts[0], out rx) && WDist.TryParse(parts[1], out ry) && WDist.TryParse(parts[2], out rz))
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return new WPos(rx, ry, rz);
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}
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WAngle))
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{
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int res;
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if (Exts.TryParseIntegerInvariant(value, out res))
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return new WAngle(res);
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(WRot))
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{
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if (value != null)
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{
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var parts = value.Split(',');
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if (parts.Length == 3)
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{
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int rr, rp, ry;
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if (Exts.TryParseIntegerInvariant(value, out rr) && Exts.TryParseIntegerInvariant(value, out rp) && Exts.TryParseIntegerInvariant(value, out ry))
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return new WRot(new WAngle(rr), new WAngle(rp), new WAngle(ry));
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}
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(CPos))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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return new CPos(Exts.ParseIntegerInvariant(parts[0]), Exts.ParseIntegerInvariant(parts[1]));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(CVec))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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return new CVec(Exts.ParseIntegerInvariant(parts[0]), Exts.ParseIntegerInvariant(parts[1]));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType.IsEnum)
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{
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try
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{
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return Enum.Parse(fieldType, value, true);
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}
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catch (ArgumentException)
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{
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return InvalidValueAction(value, fieldType, fieldName);
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}
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}
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else if (fieldType == typeof(ImageFormat))
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{
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if (value != null)
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{
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switch (value.ToLowerInvariant())
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{
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case "bmp":
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return ImageFormat.Bmp;
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case "gif":
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return ImageFormat.Gif;
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case "jpg":
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case "jpeg":
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return ImageFormat.Jpeg;
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case "tif":
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case "tiff":
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return ImageFormat.Tiff;
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default:
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return ImageFormat.Png;
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}
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(bool))
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return ParseYesNo(value, fieldType, fieldName);
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else if (fieldType.IsArray && fieldType.GetArrayRank() == 1)
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{
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if (value == null)
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return Array.CreateInstance(fieldType.GetElementType(), 0);
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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var ret = Array.CreateInstance(fieldType.GetElementType(), parts.Length);
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for (var i = 0; i < parts.Length; i++)
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ret.SetValue(GetValue(fieldName, fieldType.GetElementType(), parts[i].Trim(), field), i);
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return ret;
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}
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else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(HashSet<>))
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{
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var set = Activator.CreateInstance(fieldType);
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if (value == null)
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return set;
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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var addMethod = fieldType.GetMethod("Add", fieldType.GetGenericArguments());
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for (var i = 0; i < parts.Length; i++)
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addMethod.Invoke(set, new[] { GetValue(fieldName, fieldType.GetGenericArguments()[0], parts[i].Trim(), field) });
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return set;
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}
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else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(Dictionary<,>))
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{
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var dict = Activator.CreateInstance(fieldType);
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var arguments = fieldType.GetGenericArguments();
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var addMethod = fieldType.GetMethod("Add", arguments);
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foreach (var node in yaml.Nodes)
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{
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var key = GetValue(fieldName, arguments[0], node.Key, field);
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var val = GetValue(fieldName, arguments[1], node.Value, field);
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addMethod.Invoke(dict, new[] { key, val });
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}
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return dict;
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}
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else if (fieldType == typeof(Size))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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return new Size(Exts.ParseIntegerInvariant(parts[0]), Exts.ParseIntegerInvariant(parts[1]));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(int2))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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return new int2(Exts.ParseIntegerInvariant(parts[0]), Exts.ParseIntegerInvariant(parts[1]));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(float2))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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float xx = 0;
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float yy = 0;
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float res;
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if (float.TryParse(parts[0].Replace("%", ""), NumberStyles.Float, NumberFormatInfo.InvariantInfo, out res))
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xx = res * (parts[0].Contains('%') ? 0.01f : 1f);
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if (float.TryParse(parts[1].Replace("%", ""), NumberStyles.Float, NumberFormatInfo.InvariantInfo, out res))
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yy = res * (parts[1].Contains('%') ? 0.01f : 1f);
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return new float2(xx, yy);
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType == typeof(Rectangle))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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return new Rectangle(
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Exts.ParseIntegerInvariant(parts[0]),
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Exts.ParseIntegerInvariant(parts[1]),
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Exts.ParseIntegerInvariant(parts[2]),
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Exts.ParseIntegerInvariant(parts[3]));
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(Bits<>))
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{
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if (value != null)
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{
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var parts = value.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
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var argTypes = new Type[] { typeof(string[]) };
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var argValues = new object[] { parts };
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return fieldType.GetConstructor(argTypes).Invoke(argValues);
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}
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else if (fieldType.IsGenericType && fieldType.GetGenericTypeDefinition() == typeof(Nullable<>))
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|
{
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var innerType = fieldType.GetGenericArguments().First();
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var innerValue = GetValue("Nullable<T>", innerType, value, field);
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return fieldType.GetConstructor(new[] { innerType }).Invoke(new[] { innerValue });
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}
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|
else if (fieldType == typeof(DateTime))
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|
{
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DateTime dt;
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if (DateTime.TryParseExact(value, "yyyy-MM-dd HH-mm-ss", CultureInfo.InvariantCulture, DateTimeStyles.AssumeUniversal, out dt))
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return dt;
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return InvalidValueAction(value, fieldType, fieldName);
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}
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else
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|
{
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|
var conv = TypeDescriptor.GetConverter(fieldType);
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|
if (conv.CanConvertFrom(typeof(string)))
|
|
{
|
|
try
|
|
{
|
|
return conv.ConvertFromInvariantString(value);
|
|
}
|
|
catch
|
|
{
|
|
return InvalidValueAction(value, fieldType, fieldName);
|
|
}
|
|
}
|
|
}
|
|
|
|
UnknownFieldAction("[Type] {0}".F(value), fieldType);
|
|
return null;
|
|
}
|
|
|
|
static object ParseYesNo(string p, Type fieldType, string field)
|
|
{
|
|
if (string.IsNullOrEmpty(p))
|
|
return InvalidValueAction(p, fieldType, field);
|
|
|
|
p = p.ToLowerInvariant();
|
|
if (p == "yes") return true;
|
|
if (p == "true") return true;
|
|
if (p == "no") return false;
|
|
if (p == "false") return false;
|
|
|
|
return InvalidValueAction(p, fieldType, field);
|
|
}
|
|
|
|
public sealed class FieldLoadInfo
|
|
{
|
|
public readonly FieldInfo Field;
|
|
public readonly SerializeAttribute Attribute;
|
|
public readonly string YamlName;
|
|
public readonly Func<MiniYaml, object> Loader;
|
|
|
|
internal FieldLoadInfo(FieldInfo field, SerializeAttribute attr, string yamlName, Func<MiniYaml, object> loader = null)
|
|
{
|
|
Field = field;
|
|
Attribute = attr;
|
|
YamlName = yamlName;
|
|
Loader = loader;
|
|
}
|
|
}
|
|
|
|
public static IEnumerable<FieldLoadInfo> GetTypeLoadInfo(Type type, bool includePrivateByDefault = false)
|
|
{
|
|
return TypeLoadInfo[type].Where(fli => includePrivateByDefault || fli.Field.IsPublic || (fli.Attribute.Serialize && !fli.Attribute.IsDefault));
|
|
}
|
|
|
|
static FieldLoadInfo[] BuildTypeLoadInfo(Type type)
|
|
{
|
|
var ret = new List<FieldLoadInfo>();
|
|
|
|
foreach (var ff in type.GetFields(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance))
|
|
{
|
|
var field = ff;
|
|
|
|
var sa = field.GetCustomAttributes<SerializeAttribute>(false).DefaultIfEmpty(SerializeAttribute.Default).First();
|
|
if (!sa.Serialize)
|
|
continue;
|
|
|
|
var yamlName = string.IsNullOrEmpty(sa.YamlName) ? field.Name : sa.YamlName;
|
|
|
|
var loader = sa.GetLoader(type);
|
|
if (loader == null && sa.FromYamlKey)
|
|
loader = yaml => GetValue(yamlName, field.FieldType, yaml, field);
|
|
|
|
var fli = new FieldLoadInfo(field, sa, yamlName, loader);
|
|
ret.Add(fli);
|
|
}
|
|
|
|
return ret.ToArray();
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public sealed class IgnoreAttribute : SerializeAttribute
|
|
{
|
|
public IgnoreAttribute()
|
|
: base(false) { }
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public sealed class RequireAttribute : SerializeAttribute
|
|
{
|
|
public RequireAttribute()
|
|
: base(true, true) { }
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public sealed class LoadUsingAttribute : SerializeAttribute
|
|
{
|
|
public LoadUsingAttribute(string loader, bool required = false)
|
|
{
|
|
Loader = loader;
|
|
Required = required;
|
|
}
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public class SerializeAttribute : Attribute
|
|
{
|
|
public static readonly SerializeAttribute Default = new SerializeAttribute(true);
|
|
|
|
public bool IsDefault { get { return this == Default; } }
|
|
|
|
public readonly bool Serialize;
|
|
public string YamlName;
|
|
public string Loader;
|
|
public bool FromYamlKey;
|
|
public bool DictionaryFromYamlKey;
|
|
public bool Required;
|
|
|
|
public SerializeAttribute(bool serialize = true, bool required = false)
|
|
{
|
|
Serialize = serialize;
|
|
Required = required;
|
|
}
|
|
|
|
internal Func<MiniYaml, object> GetLoader(Type type)
|
|
{
|
|
const BindingFlags Flags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.FlattenHierarchy;
|
|
|
|
if (!string.IsNullOrEmpty(Loader))
|
|
{
|
|
var method = type.GetMethod(Loader, Flags);
|
|
if (method == null)
|
|
throw new InvalidOperationException("{0} does not specify a loader function '{1}'".F(type.Name, Loader));
|
|
|
|
return (Func<MiniYaml, object>)Delegate.CreateDelegate(typeof(Func<MiniYaml, object>), method);
|
|
}
|
|
|
|
return null;
|
|
}
|
|
}
|
|
|
|
public static string Translate(string key)
|
|
{
|
|
if (string.IsNullOrEmpty(key))
|
|
return key;
|
|
|
|
lock (TranslationsLock)
|
|
{
|
|
if (translations == null)
|
|
return key;
|
|
|
|
string value;
|
|
if (!translations.TryGetValue(key, out value))
|
|
return key;
|
|
|
|
return value;
|
|
}
|
|
}
|
|
|
|
public static void SetTranslations(IDictionary<string, string> translations)
|
|
{
|
|
lock (TranslationsLock)
|
|
FieldLoader.translations = new Dictionary<string, string>(translations);
|
|
}
|
|
}
|
|
|
|
[AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
|
|
public sealed class TranslateAttribute : Attribute { }
|
|
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public sealed class FieldFromYamlKeyAttribute : FieldLoader.SerializeAttribute
|
|
{
|
|
public FieldFromYamlKeyAttribute()
|
|
{
|
|
FromYamlKey = true;
|
|
}
|
|
}
|
|
|
|
// Special-cases FieldFromYamlKeyAttribute for use with Dictionary<K,V>.
|
|
[AttributeUsage(AttributeTargets.Field)]
|
|
public sealed class DictionaryFromYamlKeyAttribute : FieldLoader.SerializeAttribute
|
|
{
|
|
public DictionaryFromYamlKeyAttribute()
|
|
{
|
|
FromYamlKey = true;
|
|
DictionaryFromYamlKey = true;
|
|
}
|
|
}
|
|
|
|
// Mirrors DescriptionAttribute from System.ComponentModel but we don't want to have to use that everywhere.
|
|
[AttributeUsage(AttributeTargets.All)]
|
|
public sealed class DescAttribute : Attribute
|
|
{
|
|
public readonly string[] Lines;
|
|
public DescAttribute(params string[] lines) { Lines = lines; }
|
|
}
|
|
}
|