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Diffstat (limited to 'src/Editor/FPF/WindowsBase/System.Windows/DependencyProperty.cs')
| -rw-r--r-- | src/Editor/FPF/WindowsBase/System.Windows/DependencyProperty.cs | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/src/Editor/FPF/WindowsBase/System.Windows/DependencyProperty.cs b/src/Editor/FPF/WindowsBase/System.Windows/DependencyProperty.cs new file mode 100644 index 0000000..71a1ead --- /dev/null +++ b/src/Editor/FPF/WindowsBase/System.Windows/DependencyProperty.cs @@ -0,0 +1,229 @@ +// Permission is hereby granted, free of charge, to any person obtaining +// a copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to +// permit persons to whom the Software is furnished to do so, subject to +// the following conditions: +// +// The above copyright notice and this permission notice shall be +// included in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, +// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND +// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE +// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION +// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. +// +// (C) 2005 Iain McCoy +// +// Copyright (c) 2007 Novell, Inc. (http://www.novell.com) +// +// Authors: +// Iain McCoy (iain@mccoy.id.au) +// Chris Toshok (toshok@ximian.com) +// + +using System.Collections.Generic; + +namespace System.Windows { + public sealed class DependencyProperty { + private Dictionary<Type,PropertyMetadata> metadataByType = new Dictionary<Type,PropertyMetadata>(); + + public static readonly object UnsetValue = new object (); + + private DependencyProperty (bool isAttached, string name, Type propertyType, Type ownerType, + PropertyMetadata defaultMetadata, + ValidateValueCallback validateValueCallback) + { + IsAttached = isAttached; + DefaultMetadata = (defaultMetadata == null ? new PropertyMetadata() : defaultMetadata); + Name = name; + OwnerType = ownerType; + PropertyType = propertyType; + ValidateValueCallback = validateValueCallback; + } + + internal bool IsAttached { get; set; } + public bool ReadOnly { get; private set; } + public PropertyMetadata DefaultMetadata { get; private set; } + public string Name { get; private set; } + public Type OwnerType { get; private set; } + public Type PropertyType { get; private set; } + public ValidateValueCallback ValidateValueCallback { get; private set; } + + public int GlobalIndex { + get { throw new NotImplementedException (); } + } + + + public DependencyProperty AddOwner(Type ownerType) + { + return AddOwner (ownerType, null); + } + + public DependencyProperty AddOwner(Type ownerType, PropertyMetadata typeMetadata) + { + if (typeMetadata == null) typeMetadata = new PropertyMetadata (); + OverrideMetadata (ownerType, typeMetadata); + + // MS seems to always return the same DependencyProperty + return this; + } + + public PropertyMetadata GetMetadata(Type forType) + { + if (metadataByType.ContainsKey (forType)) + return metadataByType[forType]; + return null; + } + + public PropertyMetadata GetMetadata(DependencyObject dependencyObject) + { + if (metadataByType.ContainsKey (dependencyObject.GetType())) + return metadataByType[dependencyObject.GetType()]; + return null; + } + + public PropertyMetadata GetMetadata(DependencyObjectType dependencyObjectType) + { + if (metadataByType.ContainsKey (dependencyObjectType.SystemType)) + return metadataByType[dependencyObjectType.SystemType]; + return null; + } + + + public bool IsValidType(object value) + { + return PropertyType.IsInstanceOfType (value); + } + + public bool IsValidValue(object value) + { + if (!IsValidType (value)) + return false; + if (ValidateValueCallback == null) + return true; + return ValidateValueCallback (value); + } + + public void OverrideMetadata(Type forType, PropertyMetadata typeMetadata) + { + if (forType == null) + throw new ArgumentNullException ("forType"); + if (typeMetadata == null) + throw new ArgumentNullException ("typeMetadata"); + + if (ReadOnly) + throw new InvalidOperationException (String.Format ("Cannot override metadata on readonly property '{0}' without using a DependencyPropertyKey", Name)); + + typeMetadata.DoMerge (DefaultMetadata, this, forType); + metadataByType.Add (forType, typeMetadata); + } + + public void OverrideMetadata (Type forType, PropertyMetadata typeMetadata, DependencyPropertyKey key) + { + if (forType == null) + throw new ArgumentNullException ("forType"); + if (typeMetadata == null) + throw new ArgumentNullException ("typeMetadata"); + + + // further checking? should we check + // key.DependencyProperty == this? + + typeMetadata.DoMerge (DefaultMetadata, this, forType); + metadataByType.Add (forType, typeMetadata); + } + + public override string ToString () + { + return Name; + } + + public override int GetHashCode () + { + return Name.GetHashCode() ^ PropertyType.GetHashCode() ^ OwnerType.GetHashCode(); + } + + public static DependencyProperty Register(string name, Type propertyType, Type ownerType) + { + return Register(name, propertyType, ownerType, null, null); + } + + public static DependencyProperty Register(string name, Type propertyType, Type ownerType, + PropertyMetadata typeMetadata) + { + return Register(name, propertyType, ownerType, typeMetadata, null); + } + + public static DependencyProperty Register(string name, Type propertyType, Type ownerType, + PropertyMetadata typeMetadata, + ValidateValueCallback validateValueCallback) + { + if (typeMetadata == null) + typeMetadata = new PropertyMetadata(); + + DependencyProperty dp = new DependencyProperty(false, name, propertyType, ownerType, + typeMetadata, validateValueCallback); + DependencyObject.register(ownerType, dp); + + dp.OverrideMetadata (ownerType, typeMetadata); + + return dp; + } + + public static DependencyProperty RegisterAttached(string name, Type propertyType, Type ownerType) + { + return RegisterAttached(name, propertyType, ownerType, null, null); + } + + public static DependencyProperty RegisterAttached(string name, Type propertyType, Type ownerType, + PropertyMetadata defaultMetadata) + { + return RegisterAttached(name, propertyType, ownerType, defaultMetadata, null); + } + + public static DependencyProperty RegisterAttached(string name, Type propertyType, Type ownerType, + PropertyMetadata defaultMetadata, + ValidateValueCallback validateValueCallback) + { + DependencyProperty dp = new DependencyProperty(true, name, propertyType, ownerType, + defaultMetadata, validateValueCallback); + DependencyObject.register(ownerType, dp); + return dp; + } + + public static DependencyPropertyKey RegisterAttachedReadOnly(string name, Type propertyType, Type ownerType, + PropertyMetadata defaultMetadata) + { + throw new NotImplementedException("RegisterAttachedReadOnly(string name, Type propertyType, Type ownerType, PropertyMetadata defaultMetadata)"); + } + + public static DependencyPropertyKey RegisterAttachedReadOnly(string name, Type propertyType, Type ownerType, + PropertyMetadata defaultMetadata, + ValidateValueCallback validateValueCallback) + { + throw new NotImplementedException("RegisterAttachedReadOnly(string name, Type propertyType, Type ownerType, PropertyMetadata defaultMetadata, ValidateValueCallback validateValueCallback)"); + } + + public static DependencyPropertyKey RegisterReadOnly(string name, Type propertyType, Type ownerType, + PropertyMetadata typeMetadata) + { + return RegisterReadOnly (name, propertyType, ownerType, typeMetadata, null); + } + + + public static DependencyPropertyKey RegisterReadOnly(string name, Type propertyType, Type ownerType, + PropertyMetadata typeMetadata, + ValidateValueCallback validateValueCallback) + { + DependencyProperty prop = Register (name, propertyType, ownerType, typeMetadata, validateValueCallback); + prop.ReadOnly = true; + return new DependencyPropertyKey (prop); + } + + } +} |