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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
//
// Description: This file contains the implementation of Brush.
// Brush is the abstract base class which describes how to fill
// a geometric area.
//
//
using MS.Internal;
using System;
using System.IO;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
using System.Windows.Markup;
using SR=MS.Internal.PresentationCore.SR;
namespace System.Windows.Media
{
/// <summary>
/// Brush -
/// A brush is an object that represents a method to fill a plane.
/// In addition to being able to fill a plane in an absolute way,
/// Brushes are also able to adapt how they fill the plane to the
/// size of the object that they are used to fill.
/// </summary>
[Localizability(LocalizationCategory.None, Readability=Readability.Unreadable)]
public abstract partial class Brush : Animatable, IFormattable
{
#region Constructors
/// <summary>
/// Protected constructor for Brush.
/// Sets all values to their defaults.
/// To set property values, use the constructor which accepts paramters
/// </summary>
protected Brush()
{
}
#endregion Constructors
#region ToString
/// <summary>
/// Parse - this method is called by the type converter to parse a Brush's string
/// (provided in "value") with the given IFormatProvider.
/// </summary>
/// <returns>
/// A Brush which was created by parsing the "value".
/// </returns>
/// <param name="value"> String representation of a Brush. Cannot be null/empty. </param>
/// <param name="context"> The ITypeDescriptorContext for this call. </param>
internal static Brush Parse(string value, ITypeDescriptorContext context)
{
Brush brush;
IFreezeFreezables freezer = null;
if (context != null)
{
freezer = (IFreezeFreezables)context.GetService(typeof(IFreezeFreezables));
if ((freezer != null) && freezer.FreezeFreezables)
{
brush = (Brush)freezer.TryGetFreezable(value);
if (brush != null)
{
return brush;
}
}
}
brush = Parsers.ParseBrush(value, System.Windows.Markup.TypeConverterHelper.InvariantEnglishUS, context);
if ((brush != null) && (freezer != null) && (freezer.FreezeFreezables))
{
freezer.TryFreeze(value, brush);
}
return brush;
}
/// <summary>
/// Can serialze "this" to a string
/// </summary>
internal virtual bool CanSerializeToString()
{
return false;
}
#endregion
}
}
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