Brush.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Brush.cs / 1 / Brush.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// Copyright (C) Microsoft Corporation.  All rights reserved.
//
// File: Brush.cs 
//
// Description: This file contains the implementation of Brush. 
//              Brush is the abstract base class which describes how to fill 
//              a geometric area.
// 
// History:
//  04/28/2003 : [....] - Created it.
//
//--------------------------------------------------------------------------- 

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 MS.Internal.Serialization;

using SR=MS.Internal.PresentationCore.SR; 
using SRID=MS.Internal.PresentationCore.SRID;
 
namespace System.Windows.Media 
{
 
    /// 
    /// 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. 
    ///  
    [Localizability(LocalizationCategory.None, Readability=Readability.Unreadable)]
    public abstract partial class Brush : Animatable, IFormattable 
    {
        #region Constructors

        ///  
        /// Protected constructor for Brush.
        /// Sets all values to their defaults. 
        /// To set property values, use the constructor which accepts paramters 
        /// 
        protected Brush() 
        {
        }

        #endregion Constructors 

        #region Realization Support 
        ///  
        /// Derived classes must override this method and update realizations on dependent
        /// resources if required. 
        /// 
        internal virtual void UpdateRealizations(Rect fillShapeBounds, RealizationContext ctx)
        {
            return; 
        }
        #endregion 
 
        #region ToString
 
        /// 
        /// Parse - this method is called by the type converter to parse a Brush's string
        /// (provided in "value") with the given IFormatProvider.
        ///  
        /// 
        /// A Brush which was created by parsing the "value". 
        ///  
        ///  String representation of a Brush.  Cannot be null/empty. 
        ///  The ITypeDescriptorContext for this call.  
        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, CultureInfo.GetCultureInfo("en-us"), context); 

            if ((brush != null) && (freezer != null))
            {
                freezer.TryFreeze(value, brush); 
            }
 
            return brush; 
        }
 
        /// 
        /// Can serialze "this" to a string
        /// 
        internal virtual bool CanSerializeToString() 
        {
            return false; 
        } 

        #endregion 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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