GeometryGroup.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Generated / GeometryGroup.cs / 2 / GeometryGroup.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// Please see [....]/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 GeometryGroup : Geometry
    { 
        #region Constructors 

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

        static GeometryGroup() 
        { 
            // 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_Children == null || s_Children.IsFrozen, 
                "Detected context bound default value GeometryGroup.s_Children (See OS Bug #947272).");
 
        } 

 

        #endregion Constructors

        //------------------------------------------------------ 
        //
        //  Public Methods 
        // 
        //-----------------------------------------------------
 
        #region Public Methods

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

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


 

        #endregion Public Methods 
 
        //------------------------------------------------------
        // 
        //  Public Properties
        //
        //------------------------------------------------------
 
        private static void FillRulePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            GeometryGroup target = ((GeometryGroup) d); 

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

 
 
            if (e.IsASubPropertyChange)
            { 
                return;
            }

 
            GeometryGroup target = ((GeometryGroup) d);
 
 
            // If this is both non-null and mutable, we need to unhook the Changed event.
            GeometryCollection oldCollection = null; 
            GeometryCollection newCollection = null;

            if ((e.OldValueSource != BaseValueSourceInternal.Default) || e.IsOldValueModified)
            { 
                oldCollection = (GeometryCollection) e.OldValue;
                if ((oldCollection != null) && !oldCollection.IsFrozen) 
                { 
                    oldCollection.ItemRemoved -= target.ChildrenItemRemoved;
                    oldCollection.ItemInserted -= target.ChildrenItemInserted; 
                }
            }

            // If this is both non-null and mutable, we need to hook the Changed event. 
            if ((e.NewValueSource != BaseValueSourceInternal.Default) || e.IsNewValueModified)
            { 
                newCollection = (GeometryCollection) e.NewValue; 
                if ((newCollection != null) && !newCollection.IsFrozen)
                { 
                    newCollection.ItemInserted += target.ChildrenItemInserted;
                    newCollection.ItemRemoved += target.ChildrenItemRemoved;
                }
            } 
            if (oldCollection != newCollection && target.Dispatcher != null)
            { 
                using (CompositionEngineLock.Acquire()) 
                {
                    DUCE.IResource targetResource = (DUCE.IResource)target; 
                    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); 
                        // resource shouldn't be null because
                        // 1) If the field is one of our collections, we don't allow null elements 
                        // 2) Codegen already made sure the collection contains DUCE.IResources
                        // ... so we'll Assert it

                        if (newCollection != null) 
                        {
                            int count = newCollection.Count; 
                            for (int i = 0; i < count; i++) 
                            {
                                DUCE.IResource resource = newCollection.Internal_GetItem(i) as DUCE.IResource; 
                                Debug.Assert(resource != null);
                                resource.AddRefOnChannel(channel);
                            }
                        } 

                        if (oldCollection != null) 
                        { 
                            int count = oldCollection.Count;
                            for (int i = 0; i < count; i++) 
                            {
                                DUCE.IResource resource = oldCollection.Internal_GetItem(i) as DUCE.IResource;
                                Debug.Assert(resource != null);
                                resource.ReleaseOnChannel(channel); 
                            }
                        } 
                    } 
                }
            } 
            target.PropertyChanged(ChildrenProperty);
        }

 
        #region Public Properties
 
        ///  
        ///     FillRule - FillRule.  Default value is FillRule.EvenOdd.
        ///  
        public FillRule FillRule
        {
            get
            { 
                return (FillRule) GetValue(FillRuleProperty);
            } 
            set 
            {
                SetValueInternal(FillRuleProperty, FillRuleBoxes.Box(value)); 
            }
        }

        ///  
        ///     Children - GeometryCollection.  Default value is new FreezableDefaultValueFactory(GeometryCollection.Empty).
        ///  
        public GeometryCollection Children 
        {
            get 
            {
                return (GeometryCollection) GetValue(ChildrenProperty);
            }
            set 
            {
                SetValueInternal(ChildrenProperty, value); 
            } 
        }
 
        #endregion Public Properties

        //-----------------------------------------------------
        // 
        //  Protected Methods
        // 
        //------------------------------------------------------ 

        #region Protected Methods 

        /// 
        /// Implementation of Freezable.CreateInstanceCore.
        ///  
        /// The new Freezable.
        protected override Freezable CreateInstanceCore() 
        { 
            return new GeometryGroup();
        } 



        #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
                Transform vTransform = Transform;
                GeometryCollection vChildren = Children; 

                // Obtain handles for properties that implement DUCE.IResource 
                DUCE.ResourceHandle hTransform; 
                if (vTransform == null ||
                    Object.ReferenceEquals(vTransform, Transform.Identity) 
                    )
                {
                    hTransform = DUCE.ResourceHandle.Null;
                } 
                else
                { 
                    hTransform = ((DUCE.IResource)vTransform).GetHandle(channel); 
                }
 
                // Store the count of this resource's contained collections in local variables.
                int ChildrenCount = (vChildren == null) ? 0 : vChildren.Count;

                // Pack & send command packet 
                DUCE.MILCMD_GEOMETRYGROUP data;
                unsafe 
                { 
                    data.Type = MILCMD.MilCmdGeometryGroup;
                    data.Handle = _duceResource.GetHandle(channel); 
                    data.hTransform = hTransform;
                    data.FillRule = FillRule;
                    data.ChildrenSize = (uint)(sizeof(DUCE.ResourceHandle) * ChildrenCount);
 
                    channel.BeginCommand(
                        (byte*)&data, 
                        sizeof(DUCE.MILCMD_GEOMETRYGROUP), 
                        (int)(data.ChildrenSize)
                        ); 


                    // Copy this collection's elements (or their handles) to reserved data
                    for(int i = 0; i < ChildrenCount; i++) 
                    {
                        DUCE.ResourceHandle resource = ((DUCE.IResource)vChildren.Internal_GetItem(i)).GetHandle(channel);; 
                        channel.AppendCommandData( 
                            (byte*)&resource,
                            sizeof(DUCE.ResourceHandle) 
                            );
                    }

                    channel.EndCommand(); 
                }
            } 
        } 
        internal override DUCE.ResourceHandle AddRefOnChannelCore(DUCE.Channel channel)
        { 

                if (_duceResource.CreateOrAddRefOnChannel(channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_GEOMETRYGROUP))
                {
                    Transform vTransform = Transform; 
                    if (vTransform != null) ((DUCE.IResource)vTransform).AddRefOnChannel(channel);
 
                    GeometryCollection vChildren = Children; 

                    if (vChildren != null) 
                    {
                        int count = vChildren.Count;
                        for (int i = 0; i < count; i++)
                        { 
                            ((DUCE.IResource) vChildren.Internal_GetItem(i)).AddRefOnChannel(channel);
                        } 
                    } 
                    AddRefOnChannelAnimations(channel);
 

                    UpdateResource(channel, true /* skip "on channel" check - we already know that we're on channel */ );
                }
 
                return _duceResource.GetHandle(channel);
 
        } 
        internal override void ReleaseOnChannelCore(DUCE.Channel channel)
        { 

                Debug.Assert(_duceResource.IsOnChannel(channel));

                if (_duceResource.ReleaseOnChannel(channel)) 
                {
                    Transform vTransform = Transform; 
                    if (vTransform != null) ((DUCE.IResource)vTransform).ReleaseOnChannel(channel); 

                    GeometryCollection vChildren = Children; 

                    if (vChildren != null)
                    {
                        int count = vChildren.Count; 
                        for (int i = 0; i < count; i++)
                        { 
                            ((DUCE.IResource) vChildren.Internal_GetItem(i)).ReleaseOnChannel(channel); 
                        }
                    } 
                    ReleaseOnChannelAnimations(channel);

                }
 
        }
        internal override DUCE.ResourceHandle GetHandleCore(DUCE.Channel channel) 
        { 
            // Note that we are in a lock here already.
            return _duceResource.GetHandle(channel); 
        }
        internal override int GetChannelCountCore()
        {
            // must already be in composition lock here 
            return _duceResource.GetChannelCount();
        } 
        internal override DUCE.Channel GetChannelCore(int index) 
        {
            // Note that we are in a lock here already. 
            return _duceResource.GetChannel(index);
        }

        private void ChildrenItemInserted(object sender, object item) 
        {
            if (this.Dispatcher != null) 
            { 
                DUCE.IResource thisResource = (DUCE.IResource)this;
                using (CompositionEngineLock.Acquire()) 
                {
                    int channelCount = thisResource.GetChannelCount();

                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++) 
                    {
                        DUCE.Channel channel = thisResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel); 
                        Debug.Assert(!thisResource.GetHandle(channel).IsNull);
 
                        // We're on a channel, which means our dependents are also on the channel.
                        DUCE.IResource addResource = item as DUCE.IResource;
                        if (addResource != null)
                        { 
                            addResource.AddRefOnChannel(channel);
                        } 
 
                        UpdateResource(channel, true /* skip on channel check */);
                    } 
                }
            }
        }
 
        private void ChildrenItemRemoved(object sender, object item)
        { 
            if (this.Dispatcher != null) 
            {
                DUCE.IResource thisResource = (DUCE.IResource)this; 
                using (CompositionEngineLock.Acquire())
                {
                    int channelCount = thisResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++)
                    { 
                        DUCE.Channel channel = thisResource.GetChannel(channelIndex); 
                        Debug.Assert(!channel.IsOutOfBandChannel);
                        Debug.Assert(!thisResource.GetHandle(channel).IsNull); 

                        UpdateResource(channel, true /* is on channel check */);

                        // We're on a channel, which means our dependents are also on the channel. 
                        DUCE.IResource releaseResource = item as DUCE.IResource;
                        if (releaseResource != null) 
                        { 
                            releaseResource.ReleaseOnChannel(channel);
                        } 
                    }
                }
            }
        } 

        #endregion Internal Methods 
 
        //-----------------------------------------------------
        // 
        //  Internal Properties
        //
        //------------------------------------------------------
 
        #region Internal Properties
 
        // 
        //  This property finds the correct initial size for the _effectiveValues store on the
        //  current DependencyObject as a performance optimization 
        //
        //  This includes:
        //    Children
        // 
        internal override int EffectiveValuesInitialSize
        { 
            get 
            {
                return 1; 
            }
        }

 

        #endregion Internal Properties 
 
        //-----------------------------------------------------
        // 
        //  Dependency Properties
        //
        //------------------------------------------------------
 
        #region Dependency Properties
 
        ///  
        ///     The DependencyProperty for the GeometryGroup.FillRule property.
        ///  
        public static readonly DependencyProperty FillRuleProperty
            = RegisterProperty("FillRule",
                               typeof(FillRule),
                               typeof(GeometryGroup), 
                               FillRule.EvenOdd,
                               new PropertyChangedCallback(FillRulePropertyChanged), 
                               new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsFillRuleValid), 
                               /* isIndependentlyAnimated  = */ false,
                               /* coerceValueCallback */ null); 
        /// 
        ///     The DependencyProperty for the GeometryGroup.Children property.
        /// 
        public static readonly DependencyProperty ChildrenProperty 
            = RegisterProperty("Children",
                               typeof(GeometryCollection), 
                               typeof(GeometryGroup), 
                               new FreezableDefaultValueFactory(GeometryCollection.Empty),
                               new PropertyChangedCallback(ChildrenPropertyChanged), 
                               null,
                               /* isIndependentlyAnimated  = */ false,
                               /* coerceValueCallback */ null);
 
        #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 FillRule c_FillRule = FillRule.EvenOdd;
        internal static GeometryCollection s_Children = GeometryCollection.Empty;

        #endregion Internal Fields 

 
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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GeometryGroup.cs source code in C# .NET

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