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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//
//
// This file was generated, please do not edit it directly.
//
// Please see MilCodeGen.html for more information.
//
using MS.Internal;
using System.Windows.Media.Composition;
// These types are aliased to match the unamanaged names used in interop
namespace System.Windows.Media
{
sealed partial class TransformGroup : Transform
{
//------------------------------------------------------
//
// Public Methods
//
//------------------------------------------------------
#region Public Methods
/// <summary>
/// Shadows inherited Clone() with a strongly typed
/// version for convenience.
/// </summary>
public new TransformGroup Clone()
{
return (TransformGroup)base.Clone();
}
/// <summary>
/// Shadows inherited CloneCurrentValue() with a strongly typed
/// version for convenience.
/// </summary>
public new TransformGroup CloneCurrentValue()
{
return (TransformGroup)base.CloneCurrentValue();
}
#endregion Public Methods
//------------------------------------------------------
//
// Public Properties
//
//------------------------------------------------------
private static void ChildrenPropertyChanged(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;
}
TransformGroup target = ((TransformGroup) d);
// If this is both non-null and mutable, we need to unhook the Changed event.
TransformCollection oldCollection = null;
TransformCollection newCollection = null;
if ((e.OldValueSource != BaseValueSourceInternal.Default) || e.IsOldValueModified)
{
oldCollection = (TransformCollection) 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 = (TransformCollection) 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
/// <summary>
/// Children - TransformCollection. Default value is new FreezableDefaultValueFactory(TransformCollection.Empty).
/// </summary>
public TransformCollection Children
{
get
{
return (TransformCollection) GetValue(ChildrenProperty);
}
set
{
SetValueInternal(ChildrenProperty, value);
}
}
#endregion Public Properties
//------------------------------------------------------
//
// Protected Methods
//
//------------------------------------------------------
#region Protected Methods
/// <summary>
/// Implementation of <see cref="System.Windows.Freezable.CreateInstanceCore">Freezable.CreateInstanceCore</see>.
/// </summary>
/// <returns>The new Freezable.</returns>
protected override Freezable CreateInstanceCore()
{
return new TransformGroup();
}
#endregion ProtectedMethods
//------------------------------------------------------
//
// Internal Methods
//
//------------------------------------------------------
#region Internal Methods
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
TransformCollection vChildren = Children;
// 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_TRANSFORMGROUP data;
unsafe
{
data.Type = MILCMD.MilCmdTransformGroup;
data.Handle = _duceResource.GetHandle(channel);
data.ChildrenSize = (uint)(sizeof(DUCE.ResourceHandle) * ChildrenCount);
channel.BeginCommand(
(byte*)&data,
sizeof(DUCE.MILCMD_TRANSFORMGROUP),
(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(this, channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_TRANSFORMGROUP))
{
TransformCollection 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))
{
TransformCollection 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
/// <summary>
/// The DependencyProperty for the TransformGroup.Children property.
/// </summary>
public static readonly DependencyProperty ChildrenProperty;
#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 TransformCollection s_Children = TransformCollection.Empty;
#endregion Internal Fields
#region Constructors
//------------------------------------------------------
//
// Constructors
//
//------------------------------------------------------
static TransformGroup()
{
// 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.
Debug.Assert(s_Children == null || s_Children.IsFrozen,
"Detected context bound default value TransformGroup.s_Children (See OS Bug #947272).");
// Initializations
Type typeofThis = typeof(TransformGroup);
ChildrenProperty =
RegisterProperty("Children",
typeof(TransformCollection),
typeofThis,
new FreezableDefaultValueFactory(TransformCollection.Empty),
new PropertyChangedCallback(ChildrenPropertyChanged),
null,
/* isIndependentlyAnimated = */ false,
/* coerceValueCallback */ null);
}
#endregion Constructors
}
}
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