62 lines
2.3 KiB
C#
62 lines
2.3 KiB
C#
using System;
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using System.Collections;
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using System.ComponentModel;
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using System.ComponentModel.Design.Serialization;
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using System.Diagnostics.CodeAnalysis;
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using System.Globalization;
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using System.Reflection;
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namespace ANX.Framework.Design
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{
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public class PointConverter : MathTypeConverter
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{
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public PointConverter()
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{
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base.propertyDescriptions = MathTypeConverter.CreateFieldDescriptor<Point>("X", "Y");
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}
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public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
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{
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int[] values = MathTypeConverter.ConvertFromString<int>(context, culture, value as String);
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if (values != null && values.Length == 2)
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{
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return new Point(values[0], values[1]);
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}
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return base.ConvertFrom(context, culture, value);
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}
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public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
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{
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if (destinationType == null)
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{
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throw new ArgumentNullException("destinationType");
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}
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if (value is Point)
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{
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Point instance = (Point)value;
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if (destinationType == typeof(string))
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{
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return MathTypeConverter.ConvertToString<int>(context, culture, new int[] { instance.X, instance.Y });
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}
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if (destinationType == typeof(InstanceDescriptor))
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{
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var constructor = typeof(Point).GetConstructor(new Type[] { typeof(int), typeof(int) });
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return new InstanceDescriptor(constructor, new object[] { instance.X, instance.Y });
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}
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}
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return base.ConvertTo(context, culture, value, destinationType);
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}
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public override object CreateInstance(ITypeDescriptorContext context, IDictionary propertyValues)
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{
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if (propertyValues == null)
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{
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throw new ArgumentNullException("propertyValues");
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}
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return new Point((int)propertyValues["X"], (int)propertyValues["Y"]);
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}
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}
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}
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