WSHCommon/Common/CommonFroms/G2D.DataGrid/G2DProperty.cs

using System;
using System.Collections.Generic;

using System.Text;
using System.ComponentModel;
using System.Collections;
using System.Reflection;
using System.Drawing.Design;
using System.Windows.Forms.Design;
using CommonLang.Property;
using System.Windows.Forms;
using System.Globalization;
using System.Drawing;
using CommonLang;

namespace CommonFroms.G2D.DataGrid
{
    // --------------------------------------------------------------------------------------

    public interface IG2DPropertyAdapter
    {
        UITypeEditor GetEditor(MemberInfo field, Type fieldType, object ownerData);
        TypeConverter GetConverter(MemberInfo field, Type fieldType, object ownerData);
    }

    public interface IG2DPropertyDescriptor
    {
        object ComponentData { get; }
        object FieldValue { get; }
        bool NotNull { get; }
        Type DecleardFieldType { get; }
    }

    public class G2DPropertyDescriptor : ICustomTypeDescriptor
    {
        static G2DPropertyDescriptor()
        {
            RegistPropertyAdapter(new InternalDataAdapters());
        }
        private object Data;
        private List<IG2DPropertyAdapter> adapter_list = new List<IG2DPropertyAdapter>();
        private IG2DPropertyAdapter[] add_adapters;
        public G2DPropertyDescriptor(object obj, params IG2DPropertyAdapter[] adds)
        {
            this.EnablePropertyInfo = false;
            this.EnableFieldInfo = true;
            this.Data = obj;
            this.add_adapters = adds;
            foreach (IG2DPropertyAdapter sa in static_adapters)
            {
                this.AddPropertyAdapter(sa);
            }
            foreach (IG2DPropertyAdapter sa in adds)
            {
                this.AddPropertyAdapter(sa);
            }
        }

        public object EditData
        {
            get { return Data; }
            internal set { Data = value; }
        }
        public bool EnablePropertyInfo { get; set; }
        public bool EnableFieldInfo { get; set; }

        public override string ToString()
        {
            return Data.ToString();
        }

        public void AddPropertyAdapter(IG2DPropertyAdapter adapter)
        {
            if (!adapter_list.Contains(adapter))
            {
                adapter_list.Add(adapter);
            }
        }

        //------------------------------------------------------------------

        #region ICustomTypeDescriptor 成员

        AttributeCollection ICustomTypeDescriptor.GetAttributes()
        {
            return TypeDescriptor.GetAttributes(Data, true);
        }

        string ICustomTypeDescriptor.GetClassName()
        {
            return TypeDescriptor.GetClassName(Data, true);
        }

        string ICustomTypeDescriptor.GetComponentName()
        {
            return TypeDescriptor.GetComponentName(Data, true);
        }

        TypeConverter ICustomTypeDescriptor.GetConverter()
        {
            return TypeDescriptor.GetConverter(Data, true);
        }

        EventDescriptor ICustomTypeDescriptor.GetDefaultEvent()
        {
            return TypeDescriptor.GetDefaultEvent(Data, true);
        }

        PropertyDescriptor ICustomTypeDescriptor.GetDefaultProperty()
        {
            return TypeDescriptor.GetDefaultProperty(Data, true);
        }

        object ICustomTypeDescriptor.GetEditor(Type editorBaseType)
        {
            return TypeDescriptor.GetEditor(Data, editorBaseType, true);
        }

        EventDescriptorCollection ICustomTypeDescriptor.GetEvents(Attribute[] attributes)
        {
            return TypeDescriptor.GetEvents(Data, attributes, true);
        }

        EventDescriptorCollection ICustomTypeDescriptor.GetEvents()
        {
            return TypeDescriptor.GetEvents(Data, true);
        }

        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties(Attribute[] attributes)
        {
            return ListPropertyDescriptors(Data, this, attributes);
        }

        PropertyDescriptorCollection ICustomTypeDescriptor.GetProperties()
        {
            return ListPropertyDescriptors(Data, this, new Attribute[0]);
        }

        object ICustomTypeDescriptor.GetPropertyOwner(PropertyDescriptor pd)
        {
            return Data;
        }

        #endregion

        //------------------------------------------------------------------

        #region StaticUtils

        public static bool IsNeedG2DEditor(Type listType)
        {
            if (listType.IsArray && listType.GetArrayRank() == 1)
            {
                return IsNeedG2DCollectionEditor(listType);
            }
            else if (typeof(IList).IsAssignableFrom(listType))
            {
                return IsNeedG2DCollectionEditor(listType);
            }
            else if (typeof(IDictionary).IsAssignableFrom(listType))
            {
                return IsNeedG2DCollectionEditor(listType);
            }
            if (listType.Equals(typeof(string)))
            {
                return false;
            }
            if (listType.IsArray)
            {
                return false;
            }
            if (listType.IsPrimitive)
            {
                return false;
            }
            return true;
        }

        public static bool IsNeedG2DCollectionEditor(Type listType)
        {
            if (listType.IsArray && listType.GetArrayRank() == 1)
            {
                Type elementType = listType.GetElementType();
                return IsNeedG2DEditor(elementType);
            }
            else if (listType.GetInterface(typeof(IList).Name) != null)
            {
                if (listType.IsGenericType)
                {
                    Type elementType = listType.GetGenericArguments()[0];
                    return IsNeedG2DEditor(elementType);
                }
                else
                {
                    return true;
                }
            }
            else if (listType.GetInterface(typeof(IDictionary).Name) != null)
            {
                if (listType.IsGenericType)
                {
                    var gtypes = listType.GetGenericArguments();
                    if (gtypes[0].IsPrimitive || gtypes[0] == typeof(string))
                    {
                        return IsNeedG2DEditor(gtypes[1]);
                    }
                }
            }
            return false;
        }


        private static List<IG2DPropertyAdapter> static_adapters = new List<IG2DPropertyAdapter>();
        public static void RegistPropertyAdapter(IG2DPropertyAdapter adapter)
        {
            if (!static_adapters.Contains(adapter))
            {
                static_adapters.Add(adapter);
            }
        }


        public static GridItemCollection GetAllGridEntries(PropertyGrid grid)
        {
            if (grid == null)
                throw new ArgumentNullException("grid");
            object view = grid.GetType().GetField(
                "gridView",
                BindingFlags.NonPublic | BindingFlags.Instance).GetValue(grid);
            return (GridItemCollection)view.GetType().InvokeMember(
                "GetAllGridEntries",
                BindingFlags.InvokeMethod | BindingFlags.NonPublic | BindingFlags.Instance,
                null, view, null);
        }

        public static void ToDescription(StringBuilder sb, object fieldValue)
        {
            if (fieldValue != null)
            {
                if (fieldValue.GetType().IsArray)
                {
                    sb.AppendLine(CUtils.ArrayToString((Array)fieldValue));
                }
                else if (fieldValue.GetType().GetInterface(typeof(IDictionary).Name) != null)
                {
                    sb.AppendLine(CUtils.MapToString((IDictionary)fieldValue));
                }
                else if (fieldValue.GetType().GetInterface(typeof(IList).Name) != null)
                {
                    sb.AppendLine(CUtils.ListToString((IList)fieldValue));
                }
                else
                {
                    if (fieldValue.GetType().IsEnum)
                    {
                        DescAttribute eda = PropertyUtil.GetEnumAttribute<DescAttribute>((Enum)fieldValue);
                        if (eda != null)
                        {
                            sb.AppendLine(fieldValue + " : " + eda.Desc);
                        }
                        else
                        {
                            sb.AppendLine(fieldValue + "");
                        }
                    }
                    else
                    {
                        sb.AppendLine(fieldValue + "");
                    }
                }
            }
        }

        #endregion

        //--------------------------------------------------------------------------------------------------------------------------------------------

        public virtual PropertyDescriptorCollection ListPropertyDescriptors(object data, G2DPropertyDescriptor g2ddesc, Attribute[] attributes)
        {
            Type type = data.GetType();

            List<PropertyDescriptor> ret = new List<PropertyDescriptor>();

            if (type.IsArray && type.GetArrayRank() == 1)
            {
                Array array = data as Array;
                Type elementType = type.GetElementType();
                for (int i = 0; i < array.Length; i++)
                {
                    ret.Add(new ArrayItemPropertyDescriptor(g2ddesc, array, i, attributes));
                }
            }
            else if (type.GetInterface(typeof(IList).Name) != null)
            {
                IList list = data as IList;
                if (type.IsGenericType)
                {
                    Type elementType = type.GetGenericArguments()[0];
                    for (int i = 0; i < list.Count; i++)
                    {
                        ret.Add(new ListItemPropertyDescriptor(g2ddesc, list, i, attributes));
                    }
                }
                else
                {
                    for (int i = 0; i < list.Count; i++)
                    {
                        ret.Add(new ListItemPropertyDescriptor(g2ddesc, list, i, attributes));
                    }
                }
            }
            else if (type.GetInterface(typeof(IDictionary).Name) != null)
            {
                IDictionary map = data as IDictionary;
                if (type.IsGenericType)
                {
                    foreach (var k in map.Keys)
                    {
                        ret.Add(new MapItemPropertyDescriptor(g2ddesc, map, k, attributes));
                    }
                }
            }
            else if ((data == Data) && (type.IsEnum))
            {
                ret.Add(new EnumPropertyDescriptor(g2ddesc, Data, attributes));
            }
            else
            {
                if (EnableFieldInfo)
                {
                    FieldInfo[] fields = type.GetFields();
                    for (int i = 0; i < fields.Length; i++)
                    {
                        FieldInfo field = fields[i];
                        DescAttribute desc = PropertyUtil.GetDesc(field);
                        if (desc == null || desc.Editable)
                        {
                            Type fieldType = field.FieldType;
                            object fieldData = field.GetValue(data);
                            if (fieldData != null)
                            {
                                fieldType = fieldData.GetType();
                            }
                            ret.Add(new FieldMemberDescriptor(g2ddesc, i, field, data, attributes));
                        }
                    }
                }
                if (EnablePropertyInfo)
                {
                    PropertyInfo[] props = type.GetProperties();
                    for (int i = 0; i < props.Length; i++)
                    {
                        PropertyInfo field = props[i];
                        DescAttribute desc = PropertyUtil.GetDesc(field);
                        if (desc == null || desc.Editable)
                        {
                            Type fieldType = field.PropertyType;
                            object fieldData = PropertyUtil.GetMemberValue(field, data); ;//field.GetValue(data);
                            if (fieldData != null)
                            {
                                fieldType = fieldData.GetType();
                            }
                            ret.Add(new PropertyMemberDescriptor(g2ddesc, i, field, data, attributes));
                        }
                    }
                }

            }
            PropertyDescriptorCollection result = new PropertyDescriptorCollection(ret.ToArray(), true);
            ArrayList propertyNames = new ArrayList();
            foreach (PropertyDescriptor propertyAttributes in ret)
            {
                propertyNames.Add(propertyAttributes.DisplayName);
            }
            return result.Sort((string[])propertyNames.ToArray(typeof(string)));
        }

        //--------------------------------------------------------------------------------------------------------------------------------------------

        public abstract class MemberPropertyDescriptor<M> : PropertyDescriptor, IG2DPropertyDescriptor where M : MemberInfo
        {
            public readonly int index;
            public readonly G2DPropertyDescriptor g2ddesc;

            protected readonly M field;
            protected readonly Type fieldType;

            protected readonly object componentData;
            protected readonly Type componentType;

            private DescAttribute desc;
            private DependOnPropertyAttribute[] depends;
            private TypeConverterAttribute[] type_converters;
            private ExpandableAttribute[] expandables;
            private ExpandableAttribute[] expandables_f;
            private NotNullAttribute notNull;

            public MemberPropertyDescriptor(G2DPropertyDescriptor g2ddesc, int index, M field, object componentData, Attribute[] attributes)
                : base(field.Name, attributes)
            {
                this.g2ddesc = g2ddesc;
                this.index = index;

                this.componentData = componentData;
                this.componentType = componentData.GetType();


                this.field = field;
                this.fieldType = DecleardFieldType;
                this.desc = PropertyUtil.GetDesc(field);

                object fieldValue = this.GetValue(componentData);
                if (fieldValue != null)
                {
                    fieldType = fieldValue.GetType();
                }

                this.depends = (DependOnPropertyAttribute[])field.GetCustomAttributes(typeof(DependOnPropertyAttribute), false);
                this.type_converters = (TypeConverterAttribute[])fieldType.GetCustomAttributes(typeof(TypeConverterAttribute), true);
                this.expandables = (ExpandableAttribute[])fieldType.GetCustomAttributes(typeof(ExpandableAttribute), true);
                this.expandables_f = (ExpandableAttribute[])field.GetCustomAttributes(typeof(ExpandableAttribute), true);
                this.notNull = PropertyUtil.GetAttribute<NotNullAttribute>(field);
            }

            public abstract Type DecleardFieldType { get; }

            public M Field { get { return field; } }
            public object ComponentData { get { return componentData; } }
            public bool NotNull { get { return notNull != null; } }
            public object FieldValue { get { return this.GetValue(componentData); } }
            public override Type ComponentType { get { return componentType; } }
            public override bool IsReadOnly
            {
                get
                {
                    if (depends != null && depends.Length > 0)
                    {
                        foreach (DependOnPropertyAttribute depend in depends)
                        {
                            bool expect = PropertyUtil.GetFieldOrPropertyOrMethodValue<bool>(componentData, depend.PropertyName);
                            if (expect != depend.Expect)
                            {
                                return true;
                            }
                        }
                    }
                    return false;
                }
            }
            public override Type PropertyType
            {
                get { return (IsReadOnly) ? typeof(string) : fieldType; }
            }
            public override string DisplayName
            {
                get { return base.DisplayName; }
            }
            public override string Description
            {
                get
                {
                    StringBuilder sb = new StringBuilder();
                    if (desc != null)
                    {
                        sb.AppendLine(desc.Desc);
                    }
                    object fieldValue = this.GetValue(componentData);
                    ToDescription(sb, fieldValue);
                    sb.AppendLine(base.Description);
                    return sb.ToString();
                }
            }
            public override string Category
            {
                get
                {
                    if (desc != null)
                    {
                        return desc.Category;
                    }
                    return base.Category;
                }
            }


            public override bool CanResetValue(object component)
            {
                return false;
            }
            public override void ResetValue(object component)
            {
            }
            public override bool ShouldSerializeValue(object component)
            {
                return false;
            }
            public override object GetEditor(Type editorBaseType)
            {
                if (IsReadOnly) return null;
                foreach (IG2DPropertyAdapter adapter in g2ddesc.adapter_list)
                {
                    UITypeEditor editor = adapter.GetEditor(field, DecleardFieldType, componentData);
                    if (editor != null)
                    {
                        return editor;
                    }
                }
                if (IsNeedG2DCollectionEditor(fieldType))
                {
                    return new G2DFieldMemberEditor(field, this.GetValue(componentData), true, g2ddesc.add_adapters);
                }
                else if (IsNeedG2DEditor(fieldType))
                {
                    return new G2DFieldMemberEditor(field, this.GetValue(componentData), false, g2ddesc.add_adapters);
                }
                return base.GetEditor(editorBaseType);
            }

            public override TypeConverter Converter
            {
                get
                {
                    if (IsReadOnly) return null;

                    if (type_converters.Length > 0)
                    {
                        return base.Converter;
                    }
                    foreach (IG2DPropertyAdapter adapter in g2ddesc.adapter_list)
                    {
                        TypeConverter converter = adapter.GetConverter(field, DecleardFieldType, componentData);
                        if (converter != null)
                        {
                            return converter;
                        }
                    }
                    if (expandables.Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(g2ddesc);
                    }
                    if (expandables_f.Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(g2ddesc);
                    }
                    if (IsNeedG2DCollectionEditor(fieldType))
                    {
                        return new G2DUIFieldListConverter(g2ddesc);
                    }
                    return base.Converter;
                }
            }

        }
        public class FieldMemberDescriptor : MemberPropertyDescriptor<FieldInfo>
        {
            public FieldMemberDescriptor(G2DPropertyDescriptor g2ddesc, int index, FieldInfo field, object componentData, Attribute[] attributes)
                : base(g2ddesc, index, field, componentData, attributes)
            {
            }
            public override Type DecleardFieldType
            {
                get { return Field.FieldType; }
            }
            public override object GetValue(object component)
            {
                return field.GetValue(component);
            }
            public override void SetValue(object component, object value)
            {
                field.SetValue(component, value);
            }
        }
        public class PropertyMemberDescriptor : MemberPropertyDescriptor<PropertyInfo>
        {
            protected readonly MethodInfo set_op;
            protected readonly MethodInfo get_op;

            public PropertyMemberDescriptor(G2DPropertyDescriptor g2ddesc, int index, PropertyInfo field, object componentData, Attribute[] attributes)
                : base(g2ddesc, index, field, componentData, attributes)
            {
                this.get_op = field.GetGetMethod();
                this.set_op = field.GetSetMethod();
            }
            public override bool IsReadOnly
            {
                get
                {
                    if (set_op == null) return true;
                    return base.IsReadOnly;
                }
            }
            public override Type DecleardFieldType
            {
                get { return Field.PropertyType; }
            }
            public override object GetValue(object component)
            {
                if (get_op != null) return get_op.Invoke(component, new object[] { });
                return null;
            }
            public override void SetValue(object component, object value)
            {
                if (set_op != null) set_op.Invoke(component, new object[] { value });
            }
        }

        //------------------------------------------------------------------
        /*
        public class CustomPropertyDescriptor : PropertyDescriptor, IG2DPropertyDescriptor
        {
            public readonly int index;
            public readonly G2DPropertyDescriptor g2ddesc;

            private FieldInfo field;
            private Type fieldType;

            private object componentData;
            private Type componentType;

            private DescAttribute desc;
            private DependOnPropertyAttribute[] depends;
            private TypeConverterAttribute[] type_converters;
            private ExpandableAttribute[] expandables;
            private ExpandableAttribute[] expandables_f;
            private NotNullAttribute notNull;

            public CustomPropertyDescriptor(
                G2DPropertyDescriptor g2ddesc,
                int index,
                FieldInfo field,
                object componentData,
                Attribute[] attributes)
                : base(field.Name, attributes)
            {
                this.g2ddesc = g2ddesc;
                this.index = index;
                this.field = field;
                this.fieldType = field.FieldType;
                this.componentData = componentData;
                this.componentType = componentData.GetType();
                this.desc = PropertyUtil.GetDesc(field);
                object fieldValue = field.GetValue(componentData);
                if (fieldValue != null)
                {
                    fieldType = fieldValue.GetType();
                }
                this.depends = (DependOnPropertyAttribute[])field.GetCustomAttributes(typeof(DependOnPropertyAttribute), false);
                this.type_converters = (TypeConverterAttribute[])fieldType.GetCustomAttributes(typeof(TypeConverterAttribute), true);
                this.expandables = (ExpandableAttribute[])fieldType.GetCustomAttributes(typeof(ExpandableAttribute), true);
                this.expandables_f = (ExpandableAttribute[])field.GetCustomAttributes(typeof(ExpandableAttribute), true);
                this.notNull = PropertyUtil.GetAttribute<NotNullAttribute>(field);
            }

            public object ComponentData { get { return componentData; } }
            public bool NotNull { get { return notNull != null; } }
            public Type DecleardFieldType { get { return field.FieldType; } }
            public object FieldValue { get { return field.GetValue(componentData); } }
            public override Type ComponentType { get { return componentType; } }
            public override bool IsReadOnly
            {
                get
                {
                    if (depends != null && depends.Length > 0)
                    {
                        foreach (DependOnPropertyAttribute depend in depends)
                        {
                            bool expect = PropertyUtil.GetFieldOrPropertyOrMethodValue<bool>(componentData, depend.PropertyName);
                            if (expect != depend.Expect)
                            {
                                return true;
                            }
                        }
                    }
                    return false;
                }
            }
            public override Type PropertyType
            {
                get
                {
                    if (IsReadOnly) return typeof(string);
                    return fieldType;
                }
            }
            public override string DisplayName
            {
                get
                {
                    return base.DisplayName;
                }
            }
            public override string Description
            {
                get
                {
                    StringBuilder sb = new StringBuilder();
                    if (desc != null)
                    {
                        sb.AppendLine(desc.Desc);
                    }
                    object fieldValue = field.GetValue(componentData);
                    ToDescription(sb, fieldValue);
                    sb.AppendLine(base.Description);
                    return sb.ToString();
                }
            }
            public override string Category
            {
                get
                {
                    if (desc != null)
                    {
                        return desc.Category;
                    }
                    return base.Category;
                }
            }

            public override bool CanResetValue(object component)
            {
                return false;
            }
            public override void ResetValue(object component)
            {
            }
            public override object GetValue(object component)
            {
                return field.GetValue(component);
            }
            public override void SetValue(object component, object value)
            {
                field.SetValue(component, value);
            }
            public override bool ShouldSerializeValue(object component)
            {
                return false;
            }
            public override object GetEditor(Type editorBaseType)
            {
                if (IsReadOnly) return null;
                foreach (IG2DPropertyAdapter adapter in g2ddesc.adapter_list)
                {
                    UITypeEditor editor = adapter.GetEditor(field, componentData);
                    if (editor != null)
                    {
                        return editor;
                    }
                }
                if (IsNeedG2DCollectionEditor(fieldType))
                {
                    return new G2DFieldMemberEditor(field, field.GetValue(componentData), true, g2ddesc.add_adapters);
                }
                else if (IsNeedG2DEditor(fieldType))
                {
                    return new G2DFieldMemberEditor(field, field.GetValue(componentData), false, g2ddesc.add_adapters);
                }
                return base.GetEditor(editorBaseType);
            }

            public override TypeConverter Converter
            {
                get
                {
                    if (IsReadOnly) return null;

                    if (type_converters.Length > 0)
                    {
                        return base.Converter;
                    }
                    foreach (IG2DPropertyAdapter adapter in g2ddesc.adapter_list)
                    {
                        TypeConverter converter = adapter.GetConverter(field, componentData);
                        if (converter != null)
                        {
                            return converter;
                        }
                    }
                    if (expandables.Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(g2ddesc);
                    }
                    if (expandables_f.Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(g2ddesc);
                    }
                    if (IsNeedG2DCollectionEditor(fieldType))
                    {
                        return new G2DUIFieldListConverter(g2ddesc);
                    }
                    return base.Converter;
                }
            }

        }
        */

        //------------------------------------------------------------------
        public class EnumPropertyDescriptor : PropertyDescriptor
        {
            public readonly G2DPropertyDescriptor g2ddesc;
            private object componentData;
            private Type componentType;

            public EnumPropertyDescriptor(
                G2DPropertyDescriptor g2d,
                object componentData,
                Attribute[] attributes)
                : base("Value", attributes)
            {
                this.g2ddesc = g2d;
                this.componentData = componentData;
                this.componentType = componentData.GetType();
            }

            public override Type ComponentType
            {
                get { return componentType; }
            }
            public override bool IsReadOnly
            {
                get { return false; }
            }
            public override Type PropertyType
            {
                get { return componentType; }
            }
            public override bool CanResetValue(object component)
            {
                return false;
            }
            public override object GetValue(object component)
            {
                return componentData;
            }
            public override void ResetValue(object component)
            {
            }
            public override void SetValue(object component, object value)
            {
                componentData = value;
                g2ddesc.EditData = value;
            }
            public override bool ShouldSerializeValue(object component)
            {
                return true;
            }
        }
        //------------------------------------------------------------------
        public abstract class CollectionItemPropertyDescriptor : PropertyDescriptor, IG2DPropertyDescriptor
        {
            public int Index { get; private set; }
            public G2DPropertyDescriptor Descriptor { get; private set; }
            public object ListOwner { get; private set; }
            public object ComponentData { get { return ListOwner; } }
            public object FieldValue { get { return ElementItem; } }

            public abstract object ElementItem { get; }
            public abstract Type ElementType { get; }

            public CollectionItemPropertyDescriptor(G2DPropertyDescriptor g2ddesc, object listOwner, int index, Attribute[] attributes)
                : base(index.ToString(), attributes)
            {
                this.Descriptor = g2ddesc;
                this.Index = index;
                this.ListOwner = listOwner;
            }

            public abstract Type DecleardFieldType { get; }
            public override Type ComponentType { get { return ListOwner.GetType(); } }
            public bool NotNull { get { return false; } }
            public override bool IsReadOnly { get { return false; } }
            public override Type PropertyType
            {
                get
                {
                    if (ElementItem != null) return ElementItem.GetType();
                    return ElementType;
                }
            }
            public override string Description
            {
                get
                {
                    StringBuilder sb = new StringBuilder();
                    ToDescription(sb, ElementItem);
                    sb.AppendLine(base.Description);
                    return sb.ToString();
                }
            }
            public override bool CanResetValue(object component)
            {
                return false;
            }
            public override void ResetValue(object component)
            {
            }
            public override bool ShouldSerializeValue(object component)
            {
                return false;
            }
            public override object GetEditor(Type editorBaseType)
            {
                if (IsNeedG2DEditor(PropertyType))
                {
                    return new G2DCollectionItemEditor(ElementItem, ElementType, Descriptor.add_adapters);
                }
                return base.GetEditor(editorBaseType);
            }
            public override TypeConverter Converter
            {
                get
                {
                    if (PropertyType.GetCustomAttributes(typeof(ExpandableAttribute), true).Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(Descriptor);
                    }
                    return base.Converter;
                }
            }

        }
        //------------------------------------------------------------------
        public class ListItemPropertyDescriptor : CollectionItemPropertyDescriptor
        {
            private readonly Type genericItemType;
            public override object ElementItem { get { return GetValue(ListOwner); } }
            public override Type ElementType { get { return genericItemType; } }
            public override Type DecleardFieldType { get { return genericItemType; } }

            public ListItemPropertyDescriptor(G2DPropertyDescriptor g2ddesc, IList listOwner, int index, Attribute[] attributes)
                : base(g2ddesc, listOwner, index, attributes)
            {
                Type listtype = listOwner.GetType();
                if (listtype.IsGenericType)
                {
                    this.genericItemType = listOwner.GetType().GetGenericArguments()[0];
                }
                else
                {
                    this.genericItemType = typeof(object);
                }
            }
            public override object GetValue(object component)
            {
                IList list = component as IList;
                if (Index >= 0 && Index < list.Count)
                {
                    return list[Index];
                }
                return null;
            }
            public override void SetValue(object component, object value)
            {
                IList list = component as IList;
                if (Index >= 0 && Index < list.Count)
                {
                    list[Index] = value;
                }
            }

        }
        //------------------------------------------------------------------
        public class ArrayItemPropertyDescriptor : CollectionItemPropertyDescriptor
        {
            private readonly Type genericItemType;
            public override object ElementItem { get { return GetValue(ListOwner); } }
            public override Type ElementType { get { return genericItemType; } }
            public override Type DecleardFieldType { get { return genericItemType; } }

            public ArrayItemPropertyDescriptor(G2DPropertyDescriptor g2ddesc, IList listOwner, int index, Attribute[] attributes)
                : base(g2ddesc, listOwner, index, attributes)
            {
                this.genericItemType = listOwner.GetType().GetElementType();
            }
            public override object GetValue(object component)
            {
                Array list = component as Array;
                if (Index >= 0 && Index < list.Length)
                {
                    return list.GetValue(Index);
                }
                return null;
            }
            public override void SetValue(object component, object value)
            {
                Array list = component as Array;
                if (Index >= 0 && Index < list.Length)
                {
                    list.SetValue(value, Index);
                }
            }
        }
        //------------------------------------------------------------------  

        public class MapItemPropertyDescriptor : PropertyDescriptor, IG2DPropertyDescriptor
        {
            private readonly G2DPropertyDescriptor g2ddesc;
            private readonly IDictionary mapOwner;
            private readonly object key;
            private readonly Type[] genericArgs;

            public G2DPropertyDescriptor Descriptor { get { return g2ddesc; } }
            public IDictionary MapOwner { get { return mapOwner; } }
            public object ComponentData { get { return mapOwner; } }
            public Type DecleardFieldType { get { return genericArgs[1]; } }
            public object FieldValue { get { return GetValue(mapOwner); } }
            public bool NotNull { get { return true; } }

            public object Key { get { return key; } }
            public object Value { get { return GetValue(mapOwner); } }

            public override Type ComponentType { get { return MapOwner.GetType(); } }
            public override bool IsReadOnly { get { return false; } }
            public override Type PropertyType
            {
                get
                {
                    var value = Value;
                    if (value != null) return value.GetType();
                    return DecleardFieldType;
                }
            }
            public override string Description
            {
                get
                {
                    StringBuilder sb = new StringBuilder();
                    ToDescription(sb, Value);
                    sb.AppendLine(base.Description);
                    return sb.ToString();
                }
            }


            public MapItemPropertyDescriptor(G2DPropertyDescriptor g2ddesc, IDictionary mapOwner, object key, Attribute[] attributes)
                : base(key.ToString(), attributes)
            {
                this.g2ddesc = g2ddesc;
                this.key = key;
                this.mapOwner = mapOwner;
                this.genericArgs = mapOwner.GetType().GetGenericArguments();
            }

            public override object GetValue(object component)
            {
                return mapOwner[key];
            }
            public override void SetValue(object component, object value)
            {
                mapOwner[key] = value;
            }
            public override bool CanResetValue(object component)
            {
                return false;
            }
            public override void ResetValue(object component)
            {
            }
            public override bool ShouldSerializeValue(object component)
            {
                return false;
            }
            public override object GetEditor(Type editorBaseType)
            {
                var value = Value;
                var keyType = key.GetType();
                var valueType = DecleardFieldType;
                if (value != null)
                {
                    valueType = value.GetType();
                }
                if (keyType.IsPrimitive || keyType == typeof(string))
                {
                    if (IsNeedG2DEditor(valueType))
                    {
                        return new G2DCollectionItemEditor(value, valueType, Descriptor.add_adapters);
                    }
                }
                return null;
            }
            public override TypeConverter Converter
            {
                get
                {
                    if (PropertyType.GetCustomAttributes(typeof(ExpandableAttribute), true).Length > 0)
                    {
                        return new G2DUIFieldExpandableConverter(Descriptor);
                    }
                    return base.Converter;
                }
            }

        }
    }

    //--------------------------------------------------------------------------------------------------------------------------------

    /// <summary>
    /// 内部DataAdapters
    /// </summary>
    public class InternalDataAdapters : IG2DPropertyAdapter
    {
        public UITypeEditor GetEditor(MemberInfo field, Type fieldType, object ownerData)
        {
            if (PropertyUtil.GetAttribute<DirectoryPathAttribute>(field) != null && fieldType == typeof(string))
            {
                return new G2DDirectoryDialogEditor(field, ownerData);
            }
            else if (PropertyUtil.GetAttribute<FilePathAttribute>(field) != null && fieldType == typeof(string))
            {
                return new G2DFileDialogEditor(field, ownerData);
            }
            else if (PropertyUtil.GetAttribute<Int32ColorAttribute>(field) != null && fieldType == typeof(int))
            {
                return new G2DColorEditor(field, ownerData);
            }
            else if (PropertyUtil.GetAttribute<OptionalValueAttribute>(field) != null && fieldType == typeof(string))
            {
                return new G2DOptionalEditor(field, ownerData);
            }
            return null;
        }
        public TypeConverter GetConverter(MemberInfo field, Type fieldType, object ownerData)
        {
            if (PropertyUtil.GetAttribute<Int32ColorAttribute>(field) != null && fieldType == typeof(int))
            {
                return new G2DIntToHexTypeConverter();
            }
            return null;
        }

    }

    //--------------------------------------------------------------------------------------------------------------------------------
    #region _TypeConverter_


    public class G2DUIFieldListConverter : TypeConverter
    {
        private readonly G2DPropertyDescriptor g2ddesc;
        public G2DUIFieldListConverter(G2DPropertyDescriptor g2d)
        {
            g2ddesc = g2d;
        }
        public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
        {
            if (destinationType.GetInterface(typeof(ICollection).FullName) != null)
            {
                return true;
            }
            if (destinationType.IsArray)
            {
                return true;
            }
            return false;
        }
        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
        {
            if (value is ICollection)
            {
                ICollection list = (ICollection)value;
                return "集合:[" + list.Count + "]";
            }
            if (destinationType.IsArray)
            {
                StringBuilder sb = new StringBuilder();
                sb.Append("数组:");
                Array array = value as Array;
                int[] ranks = new int[array.Rank];
                foreach (int len in ranks)
                {
                    sb.Append("[" + len + "]");
                }
                return sb.ToString();
            }
            return base.ConvertTo(context, culture, value, destinationType);
        }
        public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
        {
            return g2ddesc.ListPropertyDescriptors(value, g2ddesc, attributes);
        }
        public override bool GetPropertiesSupported(ITypeDescriptorContext context)
        {
            return true;
        }
    }

    //--------------------------------------------------------------------------------------


    public class G2DUIFieldExpandableConverter : ExpandableObjectConverter
    {
        private readonly G2DPropertyDescriptor g2ddesc;
        public G2DUIFieldExpandableConverter(G2DPropertyDescriptor g2d)
        {
            g2ddesc = g2d;
        }
        public override PropertyDescriptorCollection GetProperties(ITypeDescriptorContext context, object value, Attribute[] attributes)
        {
            return g2ddesc.ListPropertyDescriptors(value, g2ddesc, attributes);
        }
        public override bool GetPropertiesSupported(ITypeDescriptorContext context)
        {
            return true;
        }
    }

    // --------------------------------------------------------------------------------------

    public class G2DIntToHexTypeConverter : TypeConverter
    {
        public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
        {
            if (sourceType == typeof(string))
            {
                return true;
            }
            else
            {
                return base.CanConvertFrom(context, sourceType);
            }
        }

        public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType)
        {
            if (destinationType == typeof(string))
            {
                return true;
            }
            else
            {
                return base.CanConvertTo(context, destinationType);
            }
        }

        public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
        {
            if (destinationType == typeof(string) && value.GetType() == typeof(int))
            {
                return string.Format("0x{0:X8}", value);
            }
            else
            {
                return base.ConvertTo(context, culture, value, destinationType);
            }
        }

        public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
        {
            if (value.GetType() == typeof(string))
            {
                string input = (string)value;

                if (input.StartsWith("0x", StringComparison.OrdinalIgnoreCase))
                {
                    input = input.Substring(2);
                }

                return int.Parse(input, NumberStyles.HexNumber, culture);
            }
            else
            {
                return base.ConvertFrom(context, culture, value);
            }
        }
    }


    //--------------------------------------------------------------------------------------

    #endregion
    //--------------------------------------------------------------------------------------------------------------------------------

    #region _UITypeEditor_

    public class G2DFieldMemberEditor : UITypeEditor
    {
        private readonly MemberInfo fieldInfo;
        private readonly Type fieldType;
        private readonly IG2DPropertyAdapter[] adapters;

        private object fieldValue;

        private readonly ListAttribute listDesc;
        private readonly NotNullAttribute notNull;
        private readonly bool isList;

        public G2DFieldMemberEditor(MemberInfo field, object fieldValue, bool isList, IG2DPropertyAdapter[] adapters)
        {
            this.isList = isList;
            this.fieldInfo = field;
            if (field is FieldInfo)
            {
                this.fieldType = (field as FieldInfo).FieldType;
            }
            else if (field is PropertyInfo)
            {
                this.fieldType = (field as PropertyInfo).PropertyType;
            }
            this.fieldValue = fieldValue;
            this.adapters = adapters;
            if (this.fieldValue != null)
            {
                fieldType = fieldValue.GetType();
            }
            this.listDesc = PropertyUtil.GetListDesc(field);
            this.notNull = PropertyUtil.GetAttribute<NotNullAttribute>(field);
        }

        /// <summary>
        /// 编辑属性值时，在右侧显示...更多按钮 
        /// </summary>
        /// <param name="context"></param>
        /// <returns></returns>
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            if (fieldType.IsPrimitive)
            {
                return UITypeEditorEditStyle.None;
            }
            else if (fieldType.IsEnum)
            {
                return UITypeEditorEditStyle.None;
            }
            else if (fieldType.Equals(typeof(string)))
            {
                return UITypeEditorEditStyle.None;
            }
            else if (fieldType.IsClass)
            {
                return UITypeEditorEditStyle.Modal;
            }
            else if (fieldType.IsArray)
            {
                return UITypeEditorEditStyle.Modal;
            }
            return UITypeEditorEditStyle.Modal;
        }

        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            var edSvc = provider.GetService(typeof(IWindowsFormsEditorService))
                as IWindowsFormsEditorService;
            if (edSvc != null)
            {
                if (isList)
                {
                    if(listDesc != null && listDesc.ElementTypes != null)
                    {
                        var list = listDesc.ElementTypes.ToArray();
                        if(list != null && list.Length > 0)
                        {
                            G2DCollectionEditor editor = new G2DCollectionEditor( fieldType, value, list, adapters);
                            if (editor.ShowDialog() == System.Windows.Forms.DialogResult.OK)
                            {
                                value = editor.GetEditCompleteData();
                            }
                            return value;
                        }
                    }
                    MessageBox.Show($"标识为列表的属性打开出错({fieldType}), 忘记标识ListAttribute？");
                }
                else
                {
                    G2DFieldEditor editor = new G2DFieldEditor(fieldType, value, (notNull == null), adapters);
                    if (editor.ShowDialog() == DialogResult.OK)
                    {
                        value = editor.EditObject;
                    }
                }
                return value;
            }
            return base.EditValue(context, provider, value);
        }
    }

    public class G2DCollectionItemEditor : UITypeEditor
    {
        public object ElementItem { get; private set; }
        public Type ElementType { get; private set; }

        private IG2DPropertyAdapter[] adapters;


        public G2DCollectionItemEditor(object fieldValue, Type fieldType, IG2DPropertyAdapter[] adapters)
        {
            this.ElementItem = fieldValue;
            this.ElementType = fieldType;
            this.adapters = adapters;
        }

        /// <summary>
        /// 编辑属性值时，在右侧显示...更多按钮 
        /// </summary>
        /// <param name="context"></param>
        /// <returns></returns>
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            if (ElementType.IsPrimitive)
            {
                return UITypeEditorEditStyle.None;
            }
            else if (ElementType.IsEnum)
            {
                return UITypeEditorEditStyle.None;
            }
            else if (ElementType.Equals(typeof(string)))
            {
                return UITypeEditorEditStyle.None;
            }
            else if (ElementType.IsClass)
            {
                return UITypeEditorEditStyle.Modal;
            }
            else if (ElementType.IsArray)
            {
                return UITypeEditorEditStyle.Modal;
            }
            return UITypeEditorEditStyle.Modal;
        }

        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            var edSvc = provider.GetService(typeof(IWindowsFormsEditorService))
                as IWindowsFormsEditorService;
            if (edSvc != null)
            {
                G2DFieldEditor editor = new G2DFieldEditor(ElementType, value, false, adapters);
                if (editor.ShowDialog() == DialogResult.OK)
                {
                    value = editor.EditObject;
                }
                return value;
            }
            return base.EditValue(context, provider, value);
        }
    }

    //--------------------------------------------------------------------------------------------------------------------------------

    public abstract class G2DMemberUITypeEditor : UITypeEditor
    {
        protected readonly MemberInfo fieldInfo;
        protected readonly Type fieldType;
        protected readonly DescAttribute desc;
        protected readonly object ownerData;

        public G2DMemberUITypeEditor(MemberInfo field, object ownerData)
        {
            this.desc = PropertyUtil.GetAttribute<DescAttribute>(field);
            this.fieldInfo = field;
            this.ownerData = ownerData;
            if (fieldInfo is FieldInfo)
            {
                fieldType = (fieldInfo as FieldInfo).FieldType;
            }
            else if (fieldInfo is PropertyInfo)
            {
                fieldType = (fieldInfo as PropertyInfo).PropertyType;
            }
            else
            {
                fieldType = null;
            }
        }
        public object GetOwnerValue()
        {
            return PropertyUtil.GetMemberValue(fieldInfo, ownerData);
        }
        public void SetOwnerValue(object value)
        {
            PropertyUtil.SetMemberValue(fieldInfo, ownerData, value);
        }
    }

    public class G2DDirectoryDialogEditor : G2DMemberUITypeEditor
    {
        public G2DDirectoryDialogEditor(MemberInfo field, object ownerData)
            : base(field, ownerData)
        {
        }

        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle.Modal;
        }
        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            string path = (string)base.GetOwnerValue();
            {
                FolderBrowserDialog fd = new FolderBrowserDialog();
                fd.SelectedPath = path;
                if (fd.ShowDialog() == DialogResult.OK)
                {
                    return fd.SelectedPath;
                }
            }
            return base.EditValue(context, provider, value);
        }
    }

    public class G2DFileDialogEditor : G2DMemberUITypeEditor
    {
        public G2DFileDialogEditor(MemberInfo field, object ownerData)
            : base(field, ownerData)
        {

        }
        public override bool GetPaintValueSupported(ITypeDescriptorContext context)
        {
            return true;
        }
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle.Modal;
        }
        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            string path = (string)base.GetOwnerValue();
            {
                OpenFileDialog fd = new OpenFileDialog();
                fd.InitialDirectory = path;
                if (fd.ShowDialog() == DialogResult.OK)
                {
                    return fd.FileName;
                }
            }
            return base.EditValue(context, provider, value);
        }
    }

    public class G2DColorEditor : G2DMemberUITypeEditor
    {
        private SolidBrush brush = new SolidBrush(Color.Green);

        public G2DColorEditor(MemberInfo field, object ownerData)
            : base(field, ownerData)
        {

        }
        public override bool GetPaintValueSupported(ITypeDescriptorContext context)
        {
            return true;
        }
        public override void PaintValue(PaintValueEventArgs e)
        {
            int color = (int)base.GetOwnerValue();
            brush.Color = Color.FromArgb(color);
            e.Graphics.FillRectangle(brush, e.Bounds);
        }
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle.Modal;
        }
        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            int color = (int)base.GetOwnerValue();
            {
                ColorDialog cd = new ColorDialog();
                cd.Color = Color.FromArgb(color);
                if (cd.ShowDialog() == DialogResult.OK)
                {
                    return cd.Color.ToArgb();
                }
            }
            return base.EditValue(context, provider, value);
        }
    }

    public class G2DOptionalEditor : G2DMemberUITypeEditor
    {
        private OptionalValueAttribute optional;

        public G2DOptionalEditor(MemberInfo field, object ownerData)
            : base(field, ownerData)
        {
            this.optional = PropertyUtil.GetAttribute<OptionalValueAttribute>(fieldInfo);
        }
        public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context)
        {
            return UITypeEditorEditStyle.DropDown;
        }
        public override object EditValue(
            ITypeDescriptorContext context,
            IServiceProvider provider,
            object value)
        {
            IWindowsFormsEditorService wfes =
               provider.GetService(typeof(IWindowsFormsEditorService)) as
               IWindowsFormsEditorService;
            if (wfes != null)
            {
                var list = new ListBox();
                foreach (var o in optional.Values)
                {
                    list.Items.Add(o);
                }
                list.SelectedValueChanged += (s, e) =>
                {
                    wfes.CloseDropDown();
                };
                wfes.DropDownControl(list);
                if (list.SelectedItems.Count > 0)
                {
                    value = list.SelectedItem.ToString();
                }
                list.Dispose();
            }
            return value;
        }

    }

    #endregion
    //--------------------------------------------------------------------------------------------------------------------------------

}