CentralizedControl/HandyControl/HandyControl_Shared/Controls/PropertyGrid/PropertyResolver.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Windows;
using System.Windows.Media;
using HandyControl.Properties.Langs;

namespace HandyControl.Controls;

public class PropertyResolver
{
    private static readonly Dictionary<Type, EditorTypeCode> TypeCodeDic = new()
    {
        [typeof(string)] = EditorTypeCode.PlainText,
        [typeof(sbyte)] = EditorTypeCode.SByteNumber,
        [typeof(byte)] = EditorTypeCode.ByteNumber,
        [typeof(short)] = EditorTypeCode.Int16Number,
        [typeof(ushort)] = EditorTypeCode.UInt16Number,
        [typeof(int)] = EditorTypeCode.Int32Number,
        [typeof(uint)] = EditorTypeCode.UInt32Number,
        [typeof(long)] = EditorTypeCode.Int64Number,
        [typeof(ulong)] = EditorTypeCode.UInt64Number,
        [typeof(float)] = EditorTypeCode.SingleNumber,
        [typeof(double)] = EditorTypeCode.DoubleNumber,
        [typeof(bool)] = EditorTypeCode.Switch,
        [typeof(DateTime)] = EditorTypeCode.DateTime,
        [typeof(HorizontalAlignment)] = EditorTypeCode.HorizontalAlignment,
        [typeof(VerticalAlignment)] = EditorTypeCode.VerticalAlignment,
        [typeof(ImageSource)] = EditorTypeCode.ImageSource
    };

    public string ResolveCategory(PropertyDescriptor propertyDescriptor)
    {
        var categoryAttribute = propertyDescriptor.Attributes.OfType<CategoryAttribute>().FirstOrDefault();

        return categoryAttribute == null ?
            Lang.Miscellaneous :
            string.IsNullOrEmpty(categoryAttribute.Category) ?
                Lang.Miscellaneous :
                categoryAttribute.Category;
    }

    public string ResolveDisplayName(PropertyDescriptor propertyDescriptor)
    {
        var displayName = propertyDescriptor.DisplayName;
        if (string.IsNullOrEmpty(displayName))
        {
            displayName = propertyDescriptor.Name;
        }

        return displayName;
    }

    public string ResolveDescription(PropertyDescriptor propertyDescriptor) => propertyDescriptor.Description;

    public bool ResolveIsBrowsable(PropertyDescriptor propertyDescriptor) => propertyDescriptor.IsBrowsable;

    public bool ResolveIsDisplay(PropertyDescriptor propertyDescriptor) => propertyDescriptor.IsLocalizable;

    public bool ResolveIsReadOnly(PropertyDescriptor propertyDescriptor) => propertyDescriptor.IsReadOnly;

    public object ResolveDefaultValue(PropertyDescriptor propertyDescriptor)
    {
        var defaultValueAttribute = propertyDescriptor.Attributes.OfType<DefaultValueAttribute>().FirstOrDefault();
        return defaultValueAttribute?.Value;
    }

    public PropertyEditorBase ResolveEditor(PropertyDescriptor propertyDescriptor)
    {
        var editorAttribute = propertyDescriptor.Attributes.OfType<EditorAttribute>().FirstOrDefault();
        var editor = editorAttribute == null || string.IsNullOrEmpty(editorAttribute.EditorTypeName)
            ? CreateDefaultEditor(propertyDescriptor.PropertyType)
            : CreateEditor(Type.GetType(editorAttribute.EditorTypeName));

        return editor;
    }

    public virtual PropertyEditorBase CreateDefaultEditor(Type type) =>
        TypeCodeDic.TryGetValue(type, out var editorType)
            ? editorType switch
            {
                EditorTypeCode.PlainText => new PlainTextPropertyEditor(),
                EditorTypeCode.SByteNumber => new NumberPropertyEditor(sbyte.MinValue, sbyte.MaxValue),
                EditorTypeCode.ByteNumber => new NumberPropertyEditor(byte.MinValue, byte.MaxValue),
                EditorTypeCode.Int16Number => new NumberPropertyEditor(short.MinValue, short.MaxValue),
                EditorTypeCode.UInt16Number => new NumberPropertyEditor(ushort.MinValue, ushort.MaxValue),
                EditorTypeCode.Int32Number => new NumberPropertyEditor(int.MinValue, int.MaxValue),
                EditorTypeCode.UInt32Number => new NumberPropertyEditor(uint.MinValue, uint.MaxValue),
                EditorTypeCode.Int64Number => new NumberPropertyEditor(long.MinValue, long.MaxValue),
                EditorTypeCode.UInt64Number => new NumberPropertyEditor(ulong.MinValue, ulong.MaxValue),
                EditorTypeCode.SingleNumber => new NumberPropertyEditor(float.MinValue, float.MaxValue),
                EditorTypeCode.DoubleNumber => new NumberPropertyEditor(double.MinValue, double.MaxValue),
                EditorTypeCode.Switch => new SwitchPropertyEditor(),
                EditorTypeCode.DateTime => new DateTimePropertyEditor(),
                EditorTypeCode.HorizontalAlignment => new HorizontalAlignmentPropertyEditor(),
                EditorTypeCode.VerticalAlignment => new VerticalAlignmentPropertyEditor(),
                EditorTypeCode.ImageSource => new ImagePropertyEditor(),
                _ => new ReadOnlyTextPropertyEditor()
            }
            : type.IsSubclassOf(typeof(Enum))
                ? new EnumPropertyEditor()
                : new ReadOnlyTextPropertyEditor();

    public virtual PropertyEditorBase CreateEditor(Type type) => Activator.CreateInstance(type) as PropertyEditorBase ?? new ReadOnlyTextPropertyEditor();

    private enum EditorTypeCode
    {
        PlainText,
        SByteNumber,
        ByteNumber,
        Int16Number,
        UInt16Number,
        Int32Number,
        UInt32Number,
        Int64Number,
        UInt64Number,
        SingleNumber,
        DoubleNumber,
        Switch,
        DateTime,
        HorizontalAlignment,
        VerticalAlignment,
        ImageSource
    }
}