Model3DGroup.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media3D / Generated / Model3DGroup.cs / 2 / Model3DGroup.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.Collections; 
using MS.Internal.PresentationCore;
using MS.Utility; 
using System; 
using System.Collections;
using System.Collections.Generic; 
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Diagnostics;
using System.Globalization; 
using System.Reflection;
using System.Runtime.InteropServices; 
using System.Text; 
using System.Windows.Markup;
using System.Windows.Media.Media3D.Converters; 
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Composition;
using System.Security; 
using System.Security.Permissions;
using SR=MS.Internal.PresentationCore.SR; 
using SRID=MS.Internal.PresentationCore.SRID; 
using System.Windows.Media.Imaging;
// 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.Media3D
{ 
 

 
    sealed partial class Model3DGroup : Model3D
    {
        #region Constructors
 
        //-----------------------------------------------------
        // 
        //  Constructors 
        //
        //----------------------------------------------------- 

        static Model3DGroup()
        {
            // 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 Model3DGroup.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 Model3DGroup Clone()
        { 
            return (Model3DGroup)base.Clone();
        } 
 
        /// 
        ///     Shadows inherited CloneCurrentValue() with a strongly typed 
        ///     version for convenience.
        /// 
        public new Model3DGroup CloneCurrentValue()
        { 
            return (Model3DGroup)base.CloneCurrentValue();
        } 
 

 

        #endregion Public Methods

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

 

            if (e.IsASubPropertyChange) 
            { 
                return;
            } 


            Model3DGroup target = ((Model3DGroup) d);
 

            // If this is both non-null and mutable, we need to unhook the Changed event. 
            Model3DCollection oldCollection = null; 
            Model3DCollection newCollection = null;
 
            if ((e.OldValueSource != BaseValueSourceInternal.Default) || e.IsOldValueModified)
            {
                oldCollection = (Model3DCollection) 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 = (Model3DCollection) 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
 
        /// 
        ///     Children - Model3DCollection.  Default value is new FreezableDefaultValueFactory(Model3DCollection.Empty). 
        ///  
        public Model3DCollection Children
        { 
            get
            {
                return (Model3DCollection) 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 Model3DGroup(); 
        }


 
        #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
                Transform3D vTransform = Transform; 
                Model3DCollection vChildren = Children;
 
                // Obtain handles for properties that implement DUCE.IResource 
                DUCE.ResourceHandle hTransform;
                if (vTransform == null || 
                    Object.ReferenceEquals(vTransform, Transform3D.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_MODEL3DGROUP data; 
                unsafe 
                {
                    data.Type = MILCMD.MilCmdModel3DGroup; 
                    data.Handle = _duceResource.GetHandle(channel);
                    data.htransform = hTransform;
                    data.ChildrenSize = (uint)(sizeof(DUCE.ResourceHandle) * ChildrenCount);
 
                    channel.BeginCommand(
                        (byte*)&data, 
                        sizeof(DUCE.MILCMD_MODEL3DGROUP), 
                        (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_MODEL3DGROUP))
                {
                    Transform3D vTransform = Transform; 
                    if (vTransform != null) ((DUCE.IResource)vTransform).AddRefOnChannel(channel);
 
                    Model3DCollection 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)) 
                {
                    Transform3D vTransform = Transform; 
                    if (vTransform != null) ((DUCE.IResource)vTransform).ReleaseOnChannel(channel); 

                    Model3DCollection 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 Model3DGroup.Children property.
        ///  
        public static readonly DependencyProperty ChildrenProperty
            = RegisterProperty("Children",
                               typeof(Model3DCollection),
                               typeof(Model3DGroup), 
                               new FreezableDefaultValueFactory(Model3DCollection.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 static Model3DCollection s_Children = Model3DCollection.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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