Pen.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / System / Windows / Media / Generated / Pen.cs / 2 / Pen.cs

                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// Please see http://wiki/default.aspx/Microsoft.Projects.Avalon/MilCodeGen.html for more information.
// 
//---------------------------------------------------------------------------

using MS.Internal;
using MS.Internal.KnownBoxes; 
using MS.Internal.Collections;
using MS.Internal.PresentationCore; 
using MS.Utility; 
using System;
using System.Collections; 
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Globalization; 
using System.Reflection;
using System.Runtime.InteropServices; 
using System.ComponentModel.Design.Serialization; 
using System.Text;
using System.Windows; 
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Media.Media3D;
using System.Windows.Media.Animation; 
using System.Windows.Media.Composition;
using System.Windows.Media.Imaging; 
using System.Windows.Markup; 
using System.Windows.Media.Converters;
using System.Security; 
using System.Security.Permissions;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
// These types are aliased to match the unamanaged names used in interop 
using BOOL = System.UInt32;
using WORD = System.UInt16; 
using Float = System.Single; 

namespace System.Windows.Media 
{


 
    sealed partial class Pen : Animatable, DUCE.IResource
    { 
        //----------------------------------------------------- 
        //
        //  Public Methods 
        //
        //-----------------------------------------------------

        #region Public Methods 

        ///  
        ///     Shadows inherited Clone() with a strongly typed 
        ///     version for convenience.
        ///  
        public new Pen Clone()
        {
            return (Pen)base.Clone();
        } 

        ///  
        ///     Shadows inherited CloneCurrentValue() with a strongly typed 
        ///     version for convenience.
        ///  
        public new Pen CloneCurrentValue()
        {
            return (Pen)base.CloneCurrentValue();
        } 

 
 

        #endregion Public Methods 

        //------------------------------------------------------
        //
        //  Public Properties 
        //
        //----------------------------------------------------- 
 
        private static void BrushPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 



 
            // The first change to the default value of a mutable collection property (e.g. GeometryGroup.Children)
            // will promote the property value from a default value to a local value. This is technically a sub-property 
            // change because the collection was changed and not a new collection set (GeometryGroup.Children. 
            // Add versus GeometryGroup.Children = myNewChildrenCollection). However, we never marshalled
            // the default value to the compositor. If the property changes from a default value, the new local value 
            // needs to be marshalled to the compositor. We detect this scenario with the second condition
            // e.OldValueSource != e.NewValueSource. Specifically in this scenario the OldValueSource will be
            // Default and the NewValueSource will be Local.
            if (e.IsASubPropertyChange && 
               (e.OldValueSource == e.NewValueSource))
            { 
                return; 
            }
 

            Pen target = ((Pen) d);

 
            Brush oldV = (Brush) e.OldValue;
            Brush newV = (Brush) e.NewValue; 
            System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher; 

            if (dispatcher != null) 
            {
                DUCE.IResource targetResource = (DUCE.IResource)target;
                using (CompositionEngineLock.Acquire())
                { 
                    int channelCount = targetResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++) 
                    {
                        DUCE.Channel channel = targetResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel);
                        Debug.Assert(!targetResource.GetHandle(channel).IsNull);
                        target.ReleaseResource(oldV,channel);
                        target.AddRefResource(newV,channel); 
                    }
                } 
            } 

            target.PropertyChanged(BrushProperty); 
        }
        private static void ThicknessPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            Pen target = ((Pen) d); 

 
            target.PropertyChanged(ThicknessProperty); 
        }
        private static void StartLineCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            Pen target = ((Pen) d);

 
            target.PropertyChanged(StartLineCapProperty);
        } 
        private static void EndLineCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            Pen target = ((Pen) d); 


            target.PropertyChanged(EndLineCapProperty);
        } 
        private static void DashCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            Pen target = ((Pen) d); 

 
            target.PropertyChanged(DashCapProperty);
        }
        private static void LineJoinPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            Pen target = ((Pen) d);
 
 
            target.PropertyChanged(LineJoinProperty);
        } 
        private static void MiterLimitPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            Pen target = ((Pen) d);
 

            target.PropertyChanged(MiterLimitProperty); 
        } 
        private static void DashStylePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 



 
            // The first change to the default value of a mutable collection property (e.g. GeometryGroup.Children)
            // will promote the property value from a default value to a local value. This is technically a sub-property 
            // change because the collection was changed and not a new collection set (GeometryGroup.Children. 
            // Add versus GeometryGroup.Children = myNewChildrenCollection). However, we never marshalled
            // the default value to the compositor. If the property changes from a default value, the new local value 
            // needs to be marshalled to the compositor. We detect this scenario with the second condition
            // e.OldValueSource != e.NewValueSource. Specifically in this scenario the OldValueSource will be
            // Default and the NewValueSource will be Local.
            if (e.IsASubPropertyChange && 
               (e.OldValueSource == e.NewValueSource))
            { 
                return; 
            }
 

            Pen target = ((Pen) d);

 
            DashStyle oldV = (DashStyle) e.OldValue;
            DashStyle newV = (DashStyle) e.NewValue; 
            System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher; 

            if (dispatcher != null) 
            {
                DUCE.IResource targetResource = (DUCE.IResource)target;
                using (CompositionEngineLock.Acquire())
                { 
                    int channelCount = targetResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++) 
                    {
                        DUCE.Channel channel = targetResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel);
                        Debug.Assert(!targetResource.GetHandle(channel).IsNull);
                        target.ReleaseResource(oldV,channel);
                        target.AddRefResource(newV,channel); 
                    }
                } 
            } 

            target.PropertyChanged(DashStyleProperty); 
        }


        #region Public Properties 

        ///  
        ///     Brush - Brush.  Default value is null. 
        /// 
        public Brush Brush 
        {
            get
            {
                return (Brush) GetValue(BrushProperty); 
            }
            set 
            { 
                SetValueInternal(BrushProperty, value);
            } 
        }

        /// 
        ///     Thickness - double.  Default value is 1.0. 
        /// 
        public double Thickness 
        { 
            get
            { 
                return (double) GetValue(ThicknessProperty);
            }
            set
            { 
                SetValueInternal(ThicknessProperty, value);
            } 
        } 

        ///  
        ///     StartLineCap - PenLineCap.  Default value is PenLineCap.Flat.
        /// 
        public PenLineCap StartLineCap
        { 
            get
            { 
                return (PenLineCap) GetValue(StartLineCapProperty); 
            }
            set 
            {
                SetValueInternal(StartLineCapProperty, value);
            }
        } 

        ///  
        ///     EndLineCap - PenLineCap.  Default value is PenLineCap.Flat. 
        /// 
        public PenLineCap EndLineCap 
        {
            get
            {
                return (PenLineCap) GetValue(EndLineCapProperty); 
            }
            set 
            { 
                SetValueInternal(EndLineCapProperty, value);
            } 
        }

        /// 
        ///     DashCap - PenLineCap.  Default value is PenLineCap.Square. 
        /// 
        public PenLineCap DashCap 
        { 
            get
            { 
                return (PenLineCap) GetValue(DashCapProperty);
            }
            set
            { 
                SetValueInternal(DashCapProperty, value);
            } 
        } 

        ///  
        ///     LineJoin - PenLineJoin.  Default value is PenLineJoin.Miter.
        /// 
        public PenLineJoin LineJoin
        { 
            get
            { 
                return (PenLineJoin) GetValue(LineJoinProperty); 
            }
            set 
            {
                SetValueInternal(LineJoinProperty, value);
            }
        } 

        ///  
        ///     MiterLimit - double.  Default value is 10.0. 
        /// 
        public double MiterLimit 
        {
            get
            {
                return (double) GetValue(MiterLimitProperty); 
            }
            set 
            { 
                SetValueInternal(MiterLimitProperty, value);
            } 
        }

        /// 
        ///     DashStyle - DashStyle.  Default value is DashStyles.Solid. 
        /// 
        public DashStyle DashStyle 
        { 
            get
            { 
                return (DashStyle) GetValue(DashStyleProperty);
            }
            set
            { 
                SetValueInternal(DashStyleProperty, value);
            } 
        } 

        #endregion Public Properties 

        //------------------------------------------------------
        //
        //  Protected Methods 
        //
        //------------------------------------------------------ 
 
        #region Protected Methods
 
        /// 
        /// Implementation of Freezable.CreateInstanceCore.
        /// 
        /// The new Freezable. 
        protected override Freezable CreateInstanceCore()
        { 
            return new Pen(); 
        }
 


        #endregion ProtectedMethods
 
        //-----------------------------------------------------
        // 
        //  Internal Methods 
        //
        //------------------------------------------------------ 

        #region Internal Methods

        ///  
        ///     Critical: This code calls into an unsafe code block
        ///     TreatAsSafe: This code does not return any critical data.It is ok to expose 
        ///     Channels are safe to call into and do not go cross domain and cross process 
        /// 
        [SecurityCritical,SecurityTreatAsSafe] 
        internal override void UpdateResource(DUCE.Channel channel, bool skipOnChannelCheck)
        {
            // If we're told we can skip the channel check, then we must be on channel
            Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel)); 

            if (skipOnChannelCheck || _duceResource.IsOnChannel(channel)) 
            { 
                base.UpdateResource(channel, skipOnChannelCheck);
 
                // Read values of properties into local variables
                Brush vBrush = Brush;
                DashStyle vDashStyle = DashStyle;
 
                // Obtain handles for properties that implement DUCE.IResource
                DUCE.ResourceHandle hBrush = vBrush != null ? ((DUCE.IResource)vBrush).GetHandle(channel) : DUCE.ResourceHandle.Null; 
                DUCE.ResourceHandle hDashStyle = vDashStyle != null ? ((DUCE.IResource)vDashStyle).GetHandle(channel) : DUCE.ResourceHandle.Null; 

                // Obtain handles for animated properties 
                DUCE.ResourceHandle hThicknessAnimations = GetAnimationResourceHandle(ThicknessProperty, channel);

                // Pack & send command packet
                DUCE.MILCMD_PEN data; 
                unsafe
                { 
                    data.Type = MILCMD.MilCmdPen; 
                    data.Handle = _duceResource.GetHandle(channel);
                    data.hBrush = hBrush; 
                    if (hThicknessAnimations.IsNull)
                    {
                        data.Thickness = Thickness;
                    } 
                    data.hThicknessAnimations = hThicknessAnimations;
                    data.StartLineCap = StartLineCap; 
                    data.EndLineCap = EndLineCap; 
                    data.DashCap = DashCap;
                    data.LineJoin = LineJoin; 
                    data.MiterLimit = MiterLimit;
                    data.hDashStyle = hDashStyle;

                    // Send packed command structure 
                    channel.SendCommand(
                        (byte*)&data, 
                        sizeof(DUCE.MILCMD_PEN)); 
                }
            } 
        }
        DUCE.ResourceHandle DUCE.IResource.AddRefOnChannel(DUCE.Channel channel)
        {
            using (CompositionEngineLock.Acquire()) 
            {
                if (_duceResource.CreateOrAddRefOnChannel(channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_PEN)) 
                { 
                    Brush vBrush = Brush;
                    if (vBrush != null) ((DUCE.IResource)vBrush).AddRefOnChannel(channel); 
                    DashStyle vDashStyle = DashStyle;
                    if (vDashStyle != null) ((DUCE.IResource)vDashStyle).AddRefOnChannel(channel);

                    AddRefOnChannelAnimations(channel); 

 
                    UpdateResource(channel, true /* skip "on channel" check - we already know that we're on channel */ ); 
                }
 
                return _duceResource.GetHandle(channel);
            }
        }
        void DUCE.IResource.ReleaseOnChannel(DUCE.Channel channel) 
        {
            using (CompositionEngineLock.Acquire()) 
            { 
                Debug.Assert(_duceResource.IsOnChannel(channel));
 
                if (_duceResource.ReleaseOnChannel(channel))
                {
                    Brush vBrush = Brush;
                    if (vBrush != null) ((DUCE.IResource)vBrush).ReleaseOnChannel(channel); 
                    DashStyle vDashStyle = DashStyle;
                    if (vDashStyle != null) ((DUCE.IResource)vDashStyle).ReleaseOnChannel(channel); 
 
                    ReleaseOnChannelAnimations(channel);
 
                }
            }
        }
        DUCE.ResourceHandle DUCE.IResource.GetHandle(DUCE.Channel channel) 
        {
            DUCE.ResourceHandle h; 
            // Reconsider the need for this lock when removing the MultiChannelResource. 
            using (CompositionEngineLock.Acquire())
            { 
                h = _duceResource.GetHandle(channel);
            }
            return h;
        } 
        int DUCE.IResource.GetChannelCount()
        { 
            // must already be in composition lock here 
            return _duceResource.GetChannelCount();
        } 
        DUCE.Channel DUCE.IResource.GetChannel(int index)
        {
            // in a lock already
            return _duceResource.GetChannel(index); 
        }
 
 
        #endregion Internal Methods
 
        //-----------------------------------------------------
        //
        //  Internal Properties
        // 
        //-----------------------------------------------------
 
        #region Internal Properties 

 



        #endregion Internal Properties 

        //----------------------------------------------------- 
        // 
        //  Dependency Properties
        // 
        //------------------------------------------------------

        #region Dependency Properties
 
        /// 
        ///     The DependencyProperty for the Pen.Brush property. 
        ///  
        public static readonly DependencyProperty BrushProperty;
        ///  
        ///     The DependencyProperty for the Pen.Thickness property.
        /// 
        public static readonly DependencyProperty ThicknessProperty;
        ///  
        ///     The DependencyProperty for the Pen.StartLineCap property.
        ///  
        public static readonly DependencyProperty StartLineCapProperty; 
        /// 
        ///     The DependencyProperty for the Pen.EndLineCap property. 
        /// 
        public static readonly DependencyProperty EndLineCapProperty;
        /// 
        ///     The DependencyProperty for the Pen.DashCap property. 
        /// 
        public static readonly DependencyProperty DashCapProperty; 
        ///  
        ///     The DependencyProperty for the Pen.LineJoin property.
        ///  
        public static readonly DependencyProperty LineJoinProperty;
        /// 
        ///     The DependencyProperty for the Pen.MiterLimit property.
        ///  
        public static readonly DependencyProperty MiterLimitProperty;
        ///  
        ///     The DependencyProperty for the Pen.DashStyle property. 
        /// 
        public static readonly DependencyProperty DashStyleProperty; 

        #endregion Dependency Properties

        //----------------------------------------------------- 
        //
        //  Internal Fields 
        // 
        //------------------------------------------------------
 
        #region Internal Fields


 
        internal System.Windows.Media.Composition.DUCE.MultiChannelResource _duceResource = new System.Windows.Media.Composition.DUCE.MultiChannelResource();
 
        internal const double c_Thickness = 1.0; 
        internal const PenLineCap c_StartLineCap = PenLineCap.Flat;
        internal const PenLineCap c_EndLineCap = PenLineCap.Flat; 
        internal const PenLineCap c_DashCap = PenLineCap.Square;
        internal const PenLineJoin c_LineJoin = PenLineJoin.Miter;
        internal const double c_MiterLimit = 10.0;
        internal static DashStyle s_DashStyle = DashStyles.Solid; 

        #endregion Internal Fields 
 

 
        #region Constructors

        //------------------------------------------------------
        // 
        //  Constructors
        // 
        //----------------------------------------------------- 

        static Pen() 
        {
            // We check our static default fields which are of type Freezable
            // to make sure that they are not mutable, otherwise we will throw
            // if these get touched by more than one thread in the lifetime 
            // of your app.  (Windows OS Bug #947272)
            // 
            Debug.Assert(s_DashStyle == null || s_DashStyle.IsFrozen, 
                "Detected context bound default value Pen.s_DashStyle (See OS Bug #947272).");
 

            // Initializations
            Type typeofThis = typeof(Pen);
            BrushProperty = 
                  RegisterProperty("Brush",
                                   typeof(Brush), 
                                   typeofThis, 
                                   null,
                                   new PropertyChangedCallback(BrushPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            ThicknessProperty = 
                  RegisterProperty("Thickness",
                                   typeof(double), 
                                   typeofThis, 
                                   1.0,
                                   new PropertyChangedCallback(ThicknessPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ true,
                                   /* coerceValueCallback */ null);
            StartLineCapProperty = 
                  RegisterProperty("StartLineCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Flat,
                                   new PropertyChangedCallback(StartLineCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            EndLineCapProperty = 
                  RegisterProperty("EndLineCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Flat,
                                   new PropertyChangedCallback(EndLineCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            DashCapProperty = 
                  RegisterProperty("DashCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Square,
                                   new PropertyChangedCallback(DashCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            LineJoinProperty = 
                  RegisterProperty("LineJoin",
                                   typeof(PenLineJoin), 
                                   typeofThis, 
                                   PenLineJoin.Miter,
                                   new PropertyChangedCallback(LineJoinPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineJoinValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            MiterLimitProperty = 
                  RegisterProperty("MiterLimit",
                                   typeof(double), 
                                   typeofThis, 
                                   10.0,
                                   new PropertyChangedCallback(MiterLimitPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            DashStyleProperty = 
                  RegisterProperty("DashStyle",
                                   typeof(DashStyle), 
                                   typeofThis, 
                                   DashStyles.Solid,
                                   new PropertyChangedCallback(DashStylePropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
        } 

 
 
        #endregion Constructors
 
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
//---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// Please see http://wiki/default.aspx/Microsoft.Projects.Avalon/MilCodeGen.html for more information.
// 
//---------------------------------------------------------------------------

using MS.Internal;
using MS.Internal.KnownBoxes; 
using MS.Internal.Collections;
using MS.Internal.PresentationCore; 
using MS.Utility; 
using System;
using System.Collections; 
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Globalization; 
using System.Reflection;
using System.Runtime.InteropServices; 
using System.ComponentModel.Design.Serialization; 
using System.Text;
using System.Windows; 
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Media.Media3D;
using System.Windows.Media.Animation; 
using System.Windows.Media.Composition;
using System.Windows.Media.Imaging; 
using System.Windows.Markup; 
using System.Windows.Media.Converters;
using System.Security; 
using System.Security.Permissions;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
// These types are aliased to match the unamanaged names used in interop 
using BOOL = System.UInt32;
using WORD = System.UInt16; 
using Float = System.Single; 

namespace System.Windows.Media 
{


 
    sealed partial class Pen : Animatable, DUCE.IResource
    { 
        //----------------------------------------------------- 
        //
        //  Public Methods 
        //
        //-----------------------------------------------------

        #region Public Methods 

        ///  
        ///     Shadows inherited Clone() with a strongly typed 
        ///     version for convenience.
        ///  
        public new Pen Clone()
        {
            return (Pen)base.Clone();
        } 

        ///  
        ///     Shadows inherited CloneCurrentValue() with a strongly typed 
        ///     version for convenience.
        ///  
        public new Pen CloneCurrentValue()
        {
            return (Pen)base.CloneCurrentValue();
        } 

 
 

        #endregion Public Methods 

        //------------------------------------------------------
        //
        //  Public Properties 
        //
        //----------------------------------------------------- 
 
        private static void BrushPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 



 
            // The first change to the default value of a mutable collection property (e.g. GeometryGroup.Children)
            // will promote the property value from a default value to a local value. This is technically a sub-property 
            // change because the collection was changed and not a new collection set (GeometryGroup.Children. 
            // Add versus GeometryGroup.Children = myNewChildrenCollection). However, we never marshalled
            // the default value to the compositor. If the property changes from a default value, the new local value 
            // needs to be marshalled to the compositor. We detect this scenario with the second condition
            // e.OldValueSource != e.NewValueSource. Specifically in this scenario the OldValueSource will be
            // Default and the NewValueSource will be Local.
            if (e.IsASubPropertyChange && 
               (e.OldValueSource == e.NewValueSource))
            { 
                return; 
            }
 

            Pen target = ((Pen) d);

 
            Brush oldV = (Brush) e.OldValue;
            Brush newV = (Brush) e.NewValue; 
            System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher; 

            if (dispatcher != null) 
            {
                DUCE.IResource targetResource = (DUCE.IResource)target;
                using (CompositionEngineLock.Acquire())
                { 
                    int channelCount = targetResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++) 
                    {
                        DUCE.Channel channel = targetResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel);
                        Debug.Assert(!targetResource.GetHandle(channel).IsNull);
                        target.ReleaseResource(oldV,channel);
                        target.AddRefResource(newV,channel); 
                    }
                } 
            } 

            target.PropertyChanged(BrushProperty); 
        }
        private static void ThicknessPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            Pen target = ((Pen) d); 

 
            target.PropertyChanged(ThicknessProperty); 
        }
        private static void StartLineCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            Pen target = ((Pen) d);

 
            target.PropertyChanged(StartLineCapProperty);
        } 
        private static void EndLineCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            Pen target = ((Pen) d); 


            target.PropertyChanged(EndLineCapProperty);
        } 
        private static void DashCapPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            Pen target = ((Pen) d); 

 
            target.PropertyChanged(DashCapProperty);
        }
        private static void LineJoinPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            Pen target = ((Pen) d);
 
 
            target.PropertyChanged(LineJoinProperty);
        } 
        private static void MiterLimitPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            Pen target = ((Pen) d);
 

            target.PropertyChanged(MiterLimitProperty); 
        } 
        private static void DashStylePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 



 
            // The first change to the default value of a mutable collection property (e.g. GeometryGroup.Children)
            // will promote the property value from a default value to a local value. This is technically a sub-property 
            // change because the collection was changed and not a new collection set (GeometryGroup.Children. 
            // Add versus GeometryGroup.Children = myNewChildrenCollection). However, we never marshalled
            // the default value to the compositor. If the property changes from a default value, the new local value 
            // needs to be marshalled to the compositor. We detect this scenario with the second condition
            // e.OldValueSource != e.NewValueSource. Specifically in this scenario the OldValueSource will be
            // Default and the NewValueSource will be Local.
            if (e.IsASubPropertyChange && 
               (e.OldValueSource == e.NewValueSource))
            { 
                return; 
            }
 

            Pen target = ((Pen) d);

 
            DashStyle oldV = (DashStyle) e.OldValue;
            DashStyle newV = (DashStyle) e.NewValue; 
            System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher; 

            if (dispatcher != null) 
            {
                DUCE.IResource targetResource = (DUCE.IResource)target;
                using (CompositionEngineLock.Acquire())
                { 
                    int channelCount = targetResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++) 
                    {
                        DUCE.Channel channel = targetResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel);
                        Debug.Assert(!targetResource.GetHandle(channel).IsNull);
                        target.ReleaseResource(oldV,channel);
                        target.AddRefResource(newV,channel); 
                    }
                } 
            } 

            target.PropertyChanged(DashStyleProperty); 
        }


        #region Public Properties 

        ///  
        ///     Brush - Brush.  Default value is null. 
        /// 
        public Brush Brush 
        {
            get
            {
                return (Brush) GetValue(BrushProperty); 
            }
            set 
            { 
                SetValueInternal(BrushProperty, value);
            } 
        }

        /// 
        ///     Thickness - double.  Default value is 1.0. 
        /// 
        public double Thickness 
        { 
            get
            { 
                return (double) GetValue(ThicknessProperty);
            }
            set
            { 
                SetValueInternal(ThicknessProperty, value);
            } 
        } 

        ///  
        ///     StartLineCap - PenLineCap.  Default value is PenLineCap.Flat.
        /// 
        public PenLineCap StartLineCap
        { 
            get
            { 
                return (PenLineCap) GetValue(StartLineCapProperty); 
            }
            set 
            {
                SetValueInternal(StartLineCapProperty, value);
            }
        } 

        ///  
        ///     EndLineCap - PenLineCap.  Default value is PenLineCap.Flat. 
        /// 
        public PenLineCap EndLineCap 
        {
            get
            {
                return (PenLineCap) GetValue(EndLineCapProperty); 
            }
            set 
            { 
                SetValueInternal(EndLineCapProperty, value);
            } 
        }

        /// 
        ///     DashCap - PenLineCap.  Default value is PenLineCap.Square. 
        /// 
        public PenLineCap DashCap 
        { 
            get
            { 
                return (PenLineCap) GetValue(DashCapProperty);
            }
            set
            { 
                SetValueInternal(DashCapProperty, value);
            } 
        } 

        ///  
        ///     LineJoin - PenLineJoin.  Default value is PenLineJoin.Miter.
        /// 
        public PenLineJoin LineJoin
        { 
            get
            { 
                return (PenLineJoin) GetValue(LineJoinProperty); 
            }
            set 
            {
                SetValueInternal(LineJoinProperty, value);
            }
        } 

        ///  
        ///     MiterLimit - double.  Default value is 10.0. 
        /// 
        public double MiterLimit 
        {
            get
            {
                return (double) GetValue(MiterLimitProperty); 
            }
            set 
            { 
                SetValueInternal(MiterLimitProperty, value);
            } 
        }

        /// 
        ///     DashStyle - DashStyle.  Default value is DashStyles.Solid. 
        /// 
        public DashStyle DashStyle 
        { 
            get
            { 
                return (DashStyle) GetValue(DashStyleProperty);
            }
            set
            { 
                SetValueInternal(DashStyleProperty, value);
            } 
        } 

        #endregion Public Properties 

        //------------------------------------------------------
        //
        //  Protected Methods 
        //
        //------------------------------------------------------ 
 
        #region Protected Methods
 
        /// 
        /// Implementation of Freezable.CreateInstanceCore.
        /// 
        /// The new Freezable. 
        protected override Freezable CreateInstanceCore()
        { 
            return new Pen(); 
        }
 


        #endregion ProtectedMethods
 
        //-----------------------------------------------------
        // 
        //  Internal Methods 
        //
        //------------------------------------------------------ 

        #region Internal Methods

        ///  
        ///     Critical: This code calls into an unsafe code block
        ///     TreatAsSafe: This code does not return any critical data.It is ok to expose 
        ///     Channels are safe to call into and do not go cross domain and cross process 
        /// 
        [SecurityCritical,SecurityTreatAsSafe] 
        internal override void UpdateResource(DUCE.Channel channel, bool skipOnChannelCheck)
        {
            // If we're told we can skip the channel check, then we must be on channel
            Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel)); 

            if (skipOnChannelCheck || _duceResource.IsOnChannel(channel)) 
            { 
                base.UpdateResource(channel, skipOnChannelCheck);
 
                // Read values of properties into local variables
                Brush vBrush = Brush;
                DashStyle vDashStyle = DashStyle;
 
                // Obtain handles for properties that implement DUCE.IResource
                DUCE.ResourceHandle hBrush = vBrush != null ? ((DUCE.IResource)vBrush).GetHandle(channel) : DUCE.ResourceHandle.Null; 
                DUCE.ResourceHandle hDashStyle = vDashStyle != null ? ((DUCE.IResource)vDashStyle).GetHandle(channel) : DUCE.ResourceHandle.Null; 

                // Obtain handles for animated properties 
                DUCE.ResourceHandle hThicknessAnimations = GetAnimationResourceHandle(ThicknessProperty, channel);

                // Pack & send command packet
                DUCE.MILCMD_PEN data; 
                unsafe
                { 
                    data.Type = MILCMD.MilCmdPen; 
                    data.Handle = _duceResource.GetHandle(channel);
                    data.hBrush = hBrush; 
                    if (hThicknessAnimations.IsNull)
                    {
                        data.Thickness = Thickness;
                    } 
                    data.hThicknessAnimations = hThicknessAnimations;
                    data.StartLineCap = StartLineCap; 
                    data.EndLineCap = EndLineCap; 
                    data.DashCap = DashCap;
                    data.LineJoin = LineJoin; 
                    data.MiterLimit = MiterLimit;
                    data.hDashStyle = hDashStyle;

                    // Send packed command structure 
                    channel.SendCommand(
                        (byte*)&data, 
                        sizeof(DUCE.MILCMD_PEN)); 
                }
            } 
        }
        DUCE.ResourceHandle DUCE.IResource.AddRefOnChannel(DUCE.Channel channel)
        {
            using (CompositionEngineLock.Acquire()) 
            {
                if (_duceResource.CreateOrAddRefOnChannel(channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_PEN)) 
                { 
                    Brush vBrush = Brush;
                    if (vBrush != null) ((DUCE.IResource)vBrush).AddRefOnChannel(channel); 
                    DashStyle vDashStyle = DashStyle;
                    if (vDashStyle != null) ((DUCE.IResource)vDashStyle).AddRefOnChannel(channel);

                    AddRefOnChannelAnimations(channel); 

 
                    UpdateResource(channel, true /* skip "on channel" check - we already know that we're on channel */ ); 
                }
 
                return _duceResource.GetHandle(channel);
            }
        }
        void DUCE.IResource.ReleaseOnChannel(DUCE.Channel channel) 
        {
            using (CompositionEngineLock.Acquire()) 
            { 
                Debug.Assert(_duceResource.IsOnChannel(channel));
 
                if (_duceResource.ReleaseOnChannel(channel))
                {
                    Brush vBrush = Brush;
                    if (vBrush != null) ((DUCE.IResource)vBrush).ReleaseOnChannel(channel); 
                    DashStyle vDashStyle = DashStyle;
                    if (vDashStyle != null) ((DUCE.IResource)vDashStyle).ReleaseOnChannel(channel); 
 
                    ReleaseOnChannelAnimations(channel);
 
                }
            }
        }
        DUCE.ResourceHandle DUCE.IResource.GetHandle(DUCE.Channel channel) 
        {
            DUCE.ResourceHandle h; 
            // Reconsider the need for this lock when removing the MultiChannelResource. 
            using (CompositionEngineLock.Acquire())
            { 
                h = _duceResource.GetHandle(channel);
            }
            return h;
        } 
        int DUCE.IResource.GetChannelCount()
        { 
            // must already be in composition lock here 
            return _duceResource.GetChannelCount();
        } 
        DUCE.Channel DUCE.IResource.GetChannel(int index)
        {
            // in a lock already
            return _duceResource.GetChannel(index); 
        }
 
 
        #endregion Internal Methods
 
        //-----------------------------------------------------
        //
        //  Internal Properties
        // 
        //-----------------------------------------------------
 
        #region Internal Properties 

 



        #endregion Internal Properties 

        //----------------------------------------------------- 
        // 
        //  Dependency Properties
        // 
        //------------------------------------------------------

        #region Dependency Properties
 
        /// 
        ///     The DependencyProperty for the Pen.Brush property. 
        ///  
        public static readonly DependencyProperty BrushProperty;
        ///  
        ///     The DependencyProperty for the Pen.Thickness property.
        /// 
        public static readonly DependencyProperty ThicknessProperty;
        ///  
        ///     The DependencyProperty for the Pen.StartLineCap property.
        ///  
        public static readonly DependencyProperty StartLineCapProperty; 
        /// 
        ///     The DependencyProperty for the Pen.EndLineCap property. 
        /// 
        public static readonly DependencyProperty EndLineCapProperty;
        /// 
        ///     The DependencyProperty for the Pen.DashCap property. 
        /// 
        public static readonly DependencyProperty DashCapProperty; 
        ///  
        ///     The DependencyProperty for the Pen.LineJoin property.
        ///  
        public static readonly DependencyProperty LineJoinProperty;
        /// 
        ///     The DependencyProperty for the Pen.MiterLimit property.
        ///  
        public static readonly DependencyProperty MiterLimitProperty;
        ///  
        ///     The DependencyProperty for the Pen.DashStyle property. 
        /// 
        public static readonly DependencyProperty DashStyleProperty; 

        #endregion Dependency Properties

        //----------------------------------------------------- 
        //
        //  Internal Fields 
        // 
        //------------------------------------------------------
 
        #region Internal Fields


 
        internal System.Windows.Media.Composition.DUCE.MultiChannelResource _duceResource = new System.Windows.Media.Composition.DUCE.MultiChannelResource();
 
        internal const double c_Thickness = 1.0; 
        internal const PenLineCap c_StartLineCap = PenLineCap.Flat;
        internal const PenLineCap c_EndLineCap = PenLineCap.Flat; 
        internal const PenLineCap c_DashCap = PenLineCap.Square;
        internal const PenLineJoin c_LineJoin = PenLineJoin.Miter;
        internal const double c_MiterLimit = 10.0;
        internal static DashStyle s_DashStyle = DashStyles.Solid; 

        #endregion Internal Fields 
 

 
        #region Constructors

        //------------------------------------------------------
        // 
        //  Constructors
        // 
        //----------------------------------------------------- 

        static Pen() 
        {
            // We check our static default fields which are of type Freezable
            // to make sure that they are not mutable, otherwise we will throw
            // if these get touched by more than one thread in the lifetime 
            // of your app.  (Windows OS Bug #947272)
            // 
            Debug.Assert(s_DashStyle == null || s_DashStyle.IsFrozen, 
                "Detected context bound default value Pen.s_DashStyle (See OS Bug #947272).");
 

            // Initializations
            Type typeofThis = typeof(Pen);
            BrushProperty = 
                  RegisterProperty("Brush",
                                   typeof(Brush), 
                                   typeofThis, 
                                   null,
                                   new PropertyChangedCallback(BrushPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            ThicknessProperty = 
                  RegisterProperty("Thickness",
                                   typeof(double), 
                                   typeofThis, 
                                   1.0,
                                   new PropertyChangedCallback(ThicknessPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ true,
                                   /* coerceValueCallback */ null);
            StartLineCapProperty = 
                  RegisterProperty("StartLineCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Flat,
                                   new PropertyChangedCallback(StartLineCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            EndLineCapProperty = 
                  RegisterProperty("EndLineCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Flat,
                                   new PropertyChangedCallback(EndLineCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            DashCapProperty = 
                  RegisterProperty("DashCap",
                                   typeof(PenLineCap), 
                                   typeofThis, 
                                   PenLineCap.Square,
                                   new PropertyChangedCallback(DashCapPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineCapValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            LineJoinProperty = 
                  RegisterProperty("LineJoin",
                                   typeof(PenLineJoin), 
                                   typeofThis, 
                                   PenLineJoin.Miter,
                                   new PropertyChangedCallback(LineJoinPropertyChanged), 
                                   new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsPenLineJoinValid),
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            MiterLimitProperty = 
                  RegisterProperty("MiterLimit",
                                   typeof(double), 
                                   typeofThis, 
                                   10.0,
                                   new PropertyChangedCallback(MiterLimitPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
            DashStyleProperty = 
                  RegisterProperty("DashStyle",
                                   typeof(DashStyle), 
                                   typeofThis, 
                                   DashStyles.Solid,
                                   new PropertyChangedCallback(DashStylePropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false,
                                   /* coerceValueCallback */ null);
        } 

 
 
        #endregion Constructors
 
    }
}

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

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