Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Base / System / Windows / Markup / TypeConverterHelper.cs / 1305600 / TypeConverterHelper.cs
//------------------------------------------------------------------------ // // Microsoft Windows Client Platform // Copyright (C) Microsoft Corporation, 2006 // // File: TypeConverterHelper.cs // // Description: Specifies that the whitespace surrounding an element should be trimmed. // //--------------------------------------------------------------------------- using System; using System.Reflection; using System.ComponentModel; using System.Globalization; using System.Diagnostics; #if SYSTEM_XAML using System.Xaml.Replacements; #endif #if PBTCOMPILER namespace MS.Internal.Markup #elif SYSTEM_XAML namespace System.Xaml #else namespace System.Windows.Markup #endif { ////// Class that provides fucntionality to obtain a TypeConverter from a property or the /// type of the property, based on logic similar to TypeDescriptor.GetConverter. /// internal static class TypeConverterHelper { private static CultureInfo invariantEnglishUS = CultureInfo.ReadOnly(new CultureInfo("en-us", false)); internal static CultureInfo InvariantEnglishUS { get { return invariantEnglishUS; } } #if !SYSTEM_XAML internal static MemberInfo GetMemberInfoForPropertyConverter(object dpOrPiOrMi) { MemberInfo memberInfo = dpOrPiOrMi as PropertyInfo; if (memberInfo == null) { MethodInfo methodInfo; #if !PBTCOMPILER DependencyProperty dp = dpOrPiOrMi as DependencyProperty; if (dp != null) { // While parsing styles or templates, we end up getting a DependencyProperty, // even for non-attached cases. In this case, we try fetching the CLR // property info and getting its attributes. memberInfo = dp.OwnerType.GetProperty( dp.Name, BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy); // We failed to get a CLR wrapper for the DependencyProperty, so we // assume that this is an attached property and look for the MethodInfo // for the static getter. if (memberInfo == null) { // Get the method member that defines the DependencyProperty memberInfo = dp.OwnerType.GetMethod( "Get" + dp.Name, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.FlattenHierarchy); } } else #endif if ((methodInfo = dpOrPiOrMi as MethodInfo) != null) { // miSetter may not be a MethodInfo when we are dealing with event handlers that // belong to local assemblies. One such case is encountered when building DrtCompiler. if (methodInfo.GetParameters().Length == 1) { // Use Getter of the attached property memberInfo = methodInfo; } else { // Use the Setter of the attached property (if any) memberInfo = methodInfo.DeclaringType.GetMethod( "Get" + methodInfo.Name.Substring("Set".Length), BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static | BindingFlags.FlattenHierarchy); } } } return memberInfo; } internal static Type GetConverterType(MemberInfo memberInfo) { Debug.Assert(null != memberInfo, "Null passed for memberInfo to GetConverterType"); Type converterType = null; // Try looking for the TypeConverter for the type using reflection. string converterName = ReflectionHelper.GetTypeConverterAttributeData(memberInfo, out converterType); if (converterType == null) { converterType = GetConverterTypeFromName(converterName); } return converterType; } #endif internal static Type GetConverterType(Type type) { Debug.Assert(null != type, "Null passed for type to GetConverterType"); Type converterType = null; // Try looking for the TypeConverter for the type using reflection. string converterName = ReflectionHelper.GetTypeConverterAttributeData(type, out converterType); if (converterType == null) { converterType = GetConverterTypeFromName(converterName); } return converterType; } private static Type GetConverterTypeFromName(string converterName) { Type converterType = null; if (!string.IsNullOrEmpty(converterName)) { converterType = ReflectionHelper.GetQualifiedType(converterName); if (converterType != null) { // Validate that this is an accessible type converter. if (!ReflectionHelper.IsPublicType(converterType)) { #if PBTCOMPILER if (!ReflectionHelper.IsInternalType(converterType) || !ReflectionHelper.IsInternalAllowedOnType(converterType)) { #endif converterType = null; #if PBTCOMPILER } #endif } } } return converterType; } #if !SYSTEM_XAML internal static Type GetCoreConverterTypeFromCustomType(Type type) { Type converterType = null; if (type.IsEnum) { // Need to handle Enums types specially as they require a ctor that // takes the underlying type, but at compile time we only need to know // the Type of the Converter and not an actual instance of it. converterType = typeof(EnumConverter); } else if (typeof(Int32).IsAssignableFrom(type)) { converterType = typeof(Int32Converter); } else if (typeof(Int16).IsAssignableFrom(type)) { converterType = typeof(Int16Converter); } else if (typeof(Int64).IsAssignableFrom(type)) { converterType = typeof(Int64Converter); } else if (typeof(UInt32).IsAssignableFrom(type)) { converterType = typeof(UInt32Converter); } else if (typeof(UInt16).IsAssignableFrom(type)) { converterType = typeof(UInt16Converter); } else if (typeof(UInt64).IsAssignableFrom(type)) { converterType = typeof(UInt64Converter); } else if (typeof(Boolean).IsAssignableFrom(type)) { converterType = typeof(BooleanConverter); } else if (typeof(Double).IsAssignableFrom(type)) { converterType = typeof(DoubleConverter); } else if (typeof(Single).IsAssignableFrom(type)) { converterType = typeof(SingleConverter); } else if (typeof(Byte).IsAssignableFrom(type)) { converterType = typeof(ByteConverter); } else if (typeof(SByte).IsAssignableFrom(type)) { converterType = typeof(SByteConverter); } else if (typeof(Char).IsAssignableFrom(type)) { converterType = typeof(CharConverter); } else if (typeof(Decimal).IsAssignableFrom(type)) { converterType = typeof(DecimalConverter); } else if (typeof(TimeSpan).IsAssignableFrom(type)) { converterType = typeof(TimeSpanConverter); } else if (typeof(Guid).IsAssignableFrom(type)) { converterType = typeof(GuidConverter); } else if (typeof(String).IsAssignableFrom(type)) { converterType = typeof(StringConverter); } else if (typeof(CultureInfo).IsAssignableFrom(type)) { converterType = typeof(CultureInfoConverter); } else if (typeof(Type).IsAssignableFrom(type)) { converterType = typeof(TypeTypeConverter); } else if (typeof(DateTime).IsAssignableFrom(type)) { converterType = typeof(DateTimeConverter2); } return converterType; } #endif #if !PBTCOMPILER private static TypeConverter GetCoreConverterFromCoreType(Type type) { TypeConverter typeConverter = null; if (type == typeof(Int32)) { typeConverter = new System.ComponentModel.Int32Converter(); } else if (type == typeof(Int16)) { typeConverter = new System.ComponentModel.Int16Converter(); } else if (type == typeof(Int64)) { typeConverter = new System.ComponentModel.Int64Converter(); } else if (type == typeof(UInt32)) { typeConverter = new System.ComponentModel.UInt32Converter(); } else if (type == typeof(UInt16)) { typeConverter = new System.ComponentModel.UInt16Converter(); } else if (type == typeof(UInt64)) { typeConverter = new System.ComponentModel.UInt64Converter(); } else if (type == typeof(Boolean)) { typeConverter = new System.ComponentModel.BooleanConverter(); } else if (type == typeof(Double)) { typeConverter = new System.ComponentModel.DoubleConverter(); } else if (type == typeof(Single)) { typeConverter = new System.ComponentModel.SingleConverter(); } else if (type == typeof(Byte)) { typeConverter = new System.ComponentModel.ByteConverter(); } else if (type == typeof(SByte)) { typeConverter = new System.ComponentModel.SByteConverter(); } else if (type == typeof(Char)) { typeConverter = new System.ComponentModel.CharConverter(); } else if (type == typeof(Decimal)) { typeConverter = new System.ComponentModel.DecimalConverter(); } else if (type == typeof(TimeSpan)) { typeConverter = new System.ComponentModel.TimeSpanConverter(); } else if (type == typeof(Guid)) { typeConverter = new System.ComponentModel.GuidConverter(); } else if (type == typeof(String)) { typeConverter = new System.ComponentModel.StringConverter(); } else if (type == typeof(CultureInfo)) { typeConverter = new System.ComponentModel.CultureInfoConverter(); } #if !SYSTEM_XAML else if (type == typeof(Type)) { typeConverter = new System.Windows.Markup.TypeTypeConverter(); } #else else if (type == typeof(Type)) { typeConverter = new System.Xaml.Replacements.TypeTypeConverter(); } #endif else if (type == typeof(DateTime)) { typeConverter = new DateTimeConverter2(); } else if (ReflectionHelper.IsNullableType(type)) { typeConverter = new System.ComponentModel.NullableConverter(type); } return typeConverter; } internal static TypeConverter GetCoreConverterFromCustomType(Type type) { TypeConverter typeConverter = null; if (type.IsEnum) { // Need to handle Enums types specially as they require a ctor that // takes the underlying type. typeConverter = new System.ComponentModel.EnumConverter(type); } else if (typeof(Int32).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.Int32Converter(); } else if (typeof(Int16).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.Int16Converter(); } else if (typeof(Int64).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.Int64Converter(); } else if (typeof(UInt32).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.UInt32Converter(); } else if (typeof(UInt16).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.UInt16Converter(); } else if (typeof(UInt64).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.UInt64Converter(); } else if (typeof(Boolean).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.BooleanConverter(); } else if (typeof(Double).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.DoubleConverter(); } else if (typeof(Single).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.SingleConverter(); } else if (typeof(Byte).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.ByteConverter(); } else if (typeof(SByte).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.SByteConverter(); } else if (typeof(Char).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.CharConverter(); } else if (typeof(Decimal).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.DecimalConverter(); } else if (typeof(TimeSpan).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.TimeSpanConverter(); } else if (typeof(Guid).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.GuidConverter(); } else if (typeof(String).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.StringConverter(); } else if (typeof(CultureInfo).IsAssignableFrom(type)) { typeConverter = new System.ComponentModel.CultureInfoConverter(); } #if !SYSTEM_XAML else if (typeof(Type).IsAssignableFrom(type)) { typeConverter = new System.Windows.Markup.TypeTypeConverter(); } #else else if (type == typeof(Type)) { typeConverter = new System.Xaml.Replacements.TypeTypeConverter(); } #endif else if (typeof(DateTime).IsAssignableFrom(type)) { typeConverter = new DateTimeConverter2(); } return typeConverter; } ////// Returns a TypeConverter for the given target Type, otherwise null if not found. /// First, if the type is one of the known system types, it lookups a table to determine the TypeConverter. /// Next, it tries to find a TypeConverterAttribute on the type using reflection. /// Finally, it looks up the table of known typeConverters again if the given type derives from one of the /// known system types. /// /// The target Type for which to find a TypeConverter. ///A TypeConverter for the Type type if found. Null otherwise. internal static TypeConverter GetTypeConverter(Type type) { if (type == null) { throw new ArgumentNullException("type"); } TypeConverter typeConverter = GetCoreConverterFromCoreType(type); if (typeConverter == null) { Type converterType = GetConverterType(type); if (converterType != null) { typeConverter = Activator.CreateInstance(converterType, BindingFlags.Instance | BindingFlags.CreateInstance | BindingFlags.Public, null, null, InvariantEnglishUS) as TypeConverter; } else { typeConverter = GetCoreConverterFromCustomType(type); } if (typeConverter == null) { typeConverter = new TypeConverter(); } } return typeConverter; } #endif } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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