From 0941ba7afaf5fe55c81c85157f9fd2f512587484 Mon Sep 17 00:00:00 2001
From: Seeker1437 <williams.darnell56@yahoo.com>
Date: Thu, 7 Jul 2016 10:06:01 -0400
Subject: [PATCH] Adds DateTimeTypeConverter

---
 .../Avalonia.Markup.Xaml.csproj               |  3 +-
 .../Context/AvaloniaTypeFeatureProvider.cs    | 23 ++++----
 .../Converters/DateTimeTypeConverter.cs       | 58 +++++++++++++++++++
 3 files changed, 72 insertions(+), 12 deletions(-)
 create mode 100644 src/Markup/Avalonia.Markup.Xaml/Converters/DateTimeTypeConverter.cs

diff --git a/src/Markup/Avalonia.Markup.Xaml/Avalonia.Markup.Xaml.csproj b/src/Markup/Avalonia.Markup.Xaml/Avalonia.Markup.Xaml.csproj
index 31e3930a49..a3c6a0dbbd 100644
--- a/src/Markup/Avalonia.Markup.Xaml/Avalonia.Markup.Xaml.csproj
+++ b/src/Markup/Avalonia.Markup.Xaml/Avalonia.Markup.Xaml.csproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
@@ -59,6 +59,7 @@
     <Compile Include="Converters\ColorTypeConverter.cs" />
     <Compile Include="Converters\ColumnDefinitionsTypeConverter.cs" />
     <Compile Include="Converters\CursorTypeConverter.cs" />
+    <Compile Include="Converters\DateTimeTypeConverter.cs" />
     <Compile Include="Converters\GeometryTypeConverter.cs" />
     <Compile Include="Converters\GridLengthTypeConverter.cs" />
     <Compile Include="Converters\KeyGestureConverter.cs" />
diff --git a/src/Markup/Avalonia.Markup.Xaml/Context/AvaloniaTypeFeatureProvider.cs b/src/Markup/Avalonia.Markup.Xaml/Context/AvaloniaTypeFeatureProvider.cs
index a0411b1d84..52f3fcc16b 100644
--- a/src/Markup/Avalonia.Markup.Xaml/Context/AvaloniaTypeFeatureProvider.cs
+++ b/src/Markup/Avalonia.Markup.Xaml/Context/AvaloniaTypeFeatureProvider.cs
@@ -1,15 +1,6 @@
 // Copyright (c) The Avalonia Project. All rights reserved.
 // Licensed under the MIT license. See licence.md file in the project root for full license information.
 
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using OmniXaml;
-using OmniXaml.Builder;
-using OmniXaml.TypeConversion;
-using OmniXaml.TypeConversion.BuiltInConverters;
-using OmniXaml.Typing;
 using Avalonia.Collections;
 using Avalonia.Controls;
 using Avalonia.Controls.Templates;
@@ -19,13 +10,22 @@ using Avalonia.Media;
 using Avalonia.Media.Imaging;
 using Avalonia.Metadata;
 using Avalonia.Styling;
+using OmniXaml;
+using OmniXaml.Builder;
+using OmniXaml.TypeConversion;
+using OmniXaml.TypeConversion.BuiltInConverters;
+using OmniXaml.Typing;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
 using OmniMetadata = OmniXaml.Typing.Metadata;
 
 namespace Avalonia.Markup.Xaml.Context
 {
     public class AvaloniaTypeFeatureProvider : ITypeFeatureProvider
     {
-        private Dictionary<Type, OmniMetadata> _metadata = 
+        private Dictionary<Type, OmniMetadata> _metadata =
             new Dictionary<Type, OmniMetadata>();
 
         private Dictionary<Type, TypeConverterRegistration> _typeConverters =
@@ -100,7 +100,7 @@ namespace Avalonia.Markup.Xaml.Context
 
                     result = property.Name;
                 }
-                
+
                 if (result != null)
                 {
                     return result;
@@ -154,6 +154,7 @@ namespace Avalonia.Markup.Xaml.Context
             RegisterTypeConverter(typeof(Color), new ColorTypeConverter());
             RegisterTypeConverter(typeof(Classes), new ClassesTypeConverter());
             RegisterTypeConverter(typeof(ColumnDefinitions), new ColumnDefinitionsTypeConverter());
+            RegisterTypeConverter(typeof(DateTime), new DateTimeTypeConverter());
             RegisterTypeConverter(typeof(Geometry), new GeometryTypeConverter());
             RegisterTypeConverter(typeof(GridLength), new GridLengthTypeConverter());
             RegisterTypeConverter(typeof(KeyGesture), new KeyGestureConverter());
diff --git a/src/Markup/Avalonia.Markup.Xaml/Converters/DateTimeTypeConverter.cs b/src/Markup/Avalonia.Markup.Xaml/Converters/DateTimeTypeConverter.cs
new file mode 100644
index 0000000000..fbbe47525b
--- /dev/null
+++ b/src/Markup/Avalonia.Markup.Xaml/Converters/DateTimeTypeConverter.cs
@@ -0,0 +1,58 @@
+using OmniXaml.TypeConversion;
+using System;
+using System.Globalization;
+
+namespace Avalonia.Markup.Xaml.Converters
+{
+    public class DateTimeTypeConverter : ITypeConverter
+    {
+        public object ConvertFrom(IValueContext context, CultureInfo culture, object value)
+        {
+            if (culture == null)
+            {
+                throw new ArgumentNullException("culture");
+            }
+
+            if (value == null)
+            {
+                throw new ArgumentNullException("value");
+            }
+
+            DateTimeFormatInfo dateTimeFormatInfo = (DateTimeFormatInfo)culture.GetFormat(typeof(DateTimeFormatInfo));
+            DateTime d = DateTime.ParseExact(value.ToString(), dateTimeFormatInfo.ShortDatePattern, culture);
+            return d;
+        }
+
+        public object ConvertTo(IValueContext context, CultureInfo culture, object value, Type destinationType)
+        {
+            if (destinationType == null)
+            {
+                throw new ArgumentNullException("destinationType");
+            }
+
+            if (culture == null)
+            {
+                throw new ArgumentNullException("culture");
+            }
+
+            DateTime? d = value as DateTime?;
+
+            if (!d.HasValue || destinationType != typeof(string))
+            {
+                throw new NotSupportedException();
+            }
+            DateTimeFormatInfo dateTimeFormatInfo = (DateTimeFormatInfo)culture.GetFormat(typeof(DateTimeFormatInfo));
+            return d.Value.ToString(dateTimeFormatInfo.ShortDatePattern, culture);
+        }
+
+        public bool CanConvertTo(IValueContext context, Type destinationType)
+        {
+            return destinationType == typeof(string);
+        }
+
+        public bool CanConvertFrom(IValueContext context, Type sourceType)
+        {
+            return sourceType == typeof(string);
+        }
+    }
+}