BitmapCacheBrush.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / Generated / BitmapCacheBrush.cs / 1305600 / BitmapCacheBrush.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 BitmapCacheBrush : Brush
    { 
        //----------------------------------------------------- 
        //
        //  Public Methods 
        //
        //-----------------------------------------------------

        #region Public Methods 

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

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

 
 

        #endregion Public Methods 

        //------------------------------------------------------
        //
        //  Public Properties 
        //
        //----------------------------------------------------- 
 
        private static void TargetPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 
            BitmapCacheBrush target = ((BitmapCacheBrush) d);


            target.PropertyChanged(TargetProperty); 
        }
        private static void BitmapCachePropertyChanged(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;
            } 
 

            BitmapCacheBrush target = ((BitmapCacheBrush) d); 


            BitmapCache oldV = (BitmapCache) e.OldValue;
            BitmapCache newV = (BitmapCache) 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(BitmapCacheProperty); 
        }
        private static void AutoLayoutContentPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            BitmapCacheBrush target = ((BitmapCacheBrush) d);

 
            target.PropertyChanged(AutoLayoutContentProperty);
        } 
        private static void InternalTargetPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            BitmapCacheBrush target = ((BitmapCacheBrush) d); 


            Visual oldV = (Visual) e.OldValue;
 
            //
            // If the Visual required layout but it is changed before we do Layout 
            // on that Visual, then we dont want the async LayoutCallback method to run, 
            // nor do we want the LayoutUpdated handler to run. So we abort/remove them.
            // 
            if (target._pendingLayout)
            {
                //
                // Visual has to be a UIElement since _pendingLayout flag is 
                // true only if we added the LayoutUpdated handler which can
                // only be done on UIElement. 
                // 
                UIElement element = (UIElement)oldV;
                Debug.Assert(element != null); 
                element.LayoutUpdated -= target.OnLayoutUpdated;

                Debug.Assert(target._DispatcherLayoutResult != null);
                Debug.Assert(target._DispatcherLayoutResult.Status == System.Windows.Threading.DispatcherOperationStatus.Pending); 
                bool abortStatus = target._DispatcherLayoutResult.Abort();
                Debug.Assert(abortStatus); 
 
                target._pendingLayout = false;
            } 

            Visual newV = (Visual) 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(InternalTargetProperty);
        } 
        private static void AutoWrapTargetPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) 
        {
            BitmapCacheBrush target = ((BitmapCacheBrush) d); 


            target.PropertyChanged(AutoWrapTargetProperty);
        } 

 
        #region Public Properties 

        ///  
        ///     Target - Visual.  Default value is null.
        /// 
        public Visual Target
        { 
            get
            { 
                return (Visual) GetValue(TargetProperty); 
            }
            set 
            {
                SetValueInternal(TargetProperty, value);
            }
        } 

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

        /// 
        ///     AutoLayoutContent - bool.  Default value is true. 
        ///     If this property is true, this Brush will run layout on the contents of this Brush
        ///     if the Visual is a non-parented UIElement. 
        ///  
        public bool AutoLayoutContent
        { 
            get
            {
                return (bool) GetValue(AutoLayoutContentProperty);
            } 
            set
            { 
                SetValueInternal(AutoLayoutContentProperty, BooleanBoxes.Box(value)); 
            }
        } 

        /// 
        ///     InternalTarget - Visual.  Default value is null.
        ///  
        internal Visual InternalTarget
        { 
            get 
            {
                return (Visual) GetValue(InternalTargetProperty); 
            }
            set
            {
                SetValueInternal(InternalTargetProperty, value); 
            }
        } 
 
        /// 
        ///     AutoWrapTarget - bool.  Default value is false. 
        ///     If true, this Brush wrap its Target visual in a ContainerVisual, which will allow
        ///     the brush to support rendering all properties on the visual above the cache to
        ///     match VisualBrush's behavior.
        ///  
        internal bool AutoWrapTarget
        { 
            get 
            {
                return (bool) GetValue(AutoWrapTargetProperty); 
            }
            set
            {
                SetValueInternal(AutoWrapTargetProperty, BooleanBoxes.Box(value)); 
            }
        } 
 
        #endregion Public Properties
 
        //------------------------------------------------------
        //
        //  Protected Methods
        // 
        //------------------------------------------------------
 
        #region Protected Methods 

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

 

        #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;
                Transform vRelativeTransform = RelativeTransform;
                BitmapCache vBitmapCache = BitmapCache;
                Visual vInternalTarget = InternalTarget; 

                // 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); 
                }
                DUCE.ResourceHandle hRelativeTransform; 
                if (vRelativeTransform == null ||
                    Object.ReferenceEquals(vRelativeTransform, Transform.Identity)
                    )
                { 
                    hRelativeTransform = DUCE.ResourceHandle.Null;
                } 
                else 
                {
                    hRelativeTransform = ((DUCE.IResource)vRelativeTransform).GetHandle(channel); 
                }
                DUCE.ResourceHandle hBitmapCache = vBitmapCache != null ? ((DUCE.IResource)vBitmapCache).GetHandle(channel) : DUCE.ResourceHandle.Null;

                // Obtain handles for properties that implement DUCE.IResource 
                DUCE.ResourceHandle  hInternalTarget = vInternalTarget != null ? ((DUCE.IResource)vInternalTarget).GetHandle(channel) : DUCE.ResourceHandle.Null;
 
                // Obtain handles for animated properties 
                DUCE.ResourceHandle hOpacityAnimations = GetAnimationResourceHandle(OpacityProperty, channel);
 
                // Pack & send command packet
                DUCE.MILCMD_BITMAPCACHEBRUSH data;
                unsafe
                { 
                    data.Type = MILCMD.MilCmdBitmapCacheBrush;
                    data.Handle = _duceResource.GetHandle(channel); 
                    if (hOpacityAnimations.IsNull) 
                    {
                        data.Opacity = Opacity; 
                    }
                    data.hOpacityAnimations = hOpacityAnimations;
                    data.hTransform = hTransform;
                    data.hRelativeTransform = hRelativeTransform; 
                    data.hBitmapCache = hBitmapCache;
                    data.hInternalTarget = hInternalTarget; 
 
                    // Send packed command structure
                    channel.SendCommand( 
                        (byte*)&data,
                        sizeof(DUCE.MILCMD_BITMAPCACHEBRUSH));
                }
            } 
        }
        internal override DUCE.ResourceHandle AddRefOnChannelCore(DUCE.Channel channel) 
        { 

                if (_duceResource.CreateOrAddRefOnChannel(this, channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_BITMAPCACHEBRUSH)) 
                {
                    Transform vTransform = Transform;
                    if (vTransform != null) ((DUCE.IResource)vTransform).AddRefOnChannel(channel);
                    Transform vRelativeTransform = RelativeTransform; 
                    if (vRelativeTransform != null) ((DUCE.IResource)vRelativeTransform).AddRefOnChannel(channel);
                    BitmapCache vBitmapCache = BitmapCache; 
                    if (vBitmapCache != null) ((DUCE.IResource)vBitmapCache).AddRefOnChannel(channel); 
                    Visual vInternalTarget = InternalTarget;
                    if (vInternalTarget != null) vInternalTarget.AddRefOnChannelForCyclicBrush(this, 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); 
                    Transform vRelativeTransform = RelativeTransform;
                    if (vRelativeTransform != null) ((DUCE.IResource)vRelativeTransform).ReleaseOnChannel(channel);
                    BitmapCache vBitmapCache = BitmapCache;
                    if (vBitmapCache != null) ((DUCE.IResource)vBitmapCache).ReleaseOnChannel(channel); 
                    Visual vInternalTarget = InternalTarget;
                    if (vInternalTarget != null) vInternalTarget.ReleaseOnChannelForCyclicBrush(this, 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); 
        }
 

        #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: 
        //    Target
        // 
        internal override int EffectiveValuesInitialSize
        {
            get
            { 
                return 1;
            } 
        } 

 

        #endregion Internal Properties

        //----------------------------------------------------- 
        //
        //  Dependency Properties 
        // 
        //------------------------------------------------------
 
        #region Dependency Properties

        /// 
        ///     The DependencyProperty for the BitmapCacheBrush.Target property. 
        /// 
        public static readonly DependencyProperty TargetProperty; 
        ///  
        ///     The DependencyProperty for the BitmapCacheBrush.BitmapCache property.
        ///  
        public static readonly DependencyProperty BitmapCacheProperty;
        /// 
        ///     The DependencyProperty for the BitmapCacheBrush.AutoLayoutContent property.
        ///  
        public static readonly DependencyProperty AutoLayoutContentProperty;
        ///  
        ///     The DependencyProperty for the BitmapCacheBrush.InternalTarget property. 
        /// 
        internal static readonly DependencyProperty InternalTargetProperty; 
        /// 
        ///     The DependencyProperty for the BitmapCacheBrush.AutoWrapTarget property.
        /// 
        internal static readonly DependencyProperty AutoWrapTargetProperty; 

        #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 bool c_AutoLayoutContent = true;
        internal const bool c_AutoWrapTarget = false;
 
        #endregion Internal Fields
 
 

        #region Constructors 

        //------------------------------------------------------
        //
        //  Constructors 
        //
        //----------------------------------------------------- 
 
        static BitmapCacheBrush()
        { 
            // 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) 
            //
 
 
            // Initializations
            Type typeofThis = typeof(BitmapCacheBrush); 
            StaticInitialize(typeofThis);
            TargetProperty =
                  RegisterProperty("Target",
                                   typeof(Visual), 
                                   typeofThis,
                                   null, 
                                   new PropertyChangedCallback(TargetPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false, 
                                   /* coerceValueCallback */ null);
            BitmapCacheProperty =
                  RegisterProperty("BitmapCache",
                                   typeof(BitmapCache), 
                                   typeofThis,
                                   null, 
                                   new PropertyChangedCallback(BitmapCachePropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false, 
                                   /* coerceValueCallback */ null);
            AutoLayoutContentProperty =
                  RegisterProperty("AutoLayoutContent",
                                   typeof(bool), 
                                   typeofThis,
                                   true, 
                                   new PropertyChangedCallback(AutoLayoutContentPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false, 
                                   /* coerceValueCallback */ null);
            InternalTargetProperty =
                  RegisterProperty("InternalTarget",
                                   typeof(Visual), 
                                   typeofThis,
                                   null, 
                                   new PropertyChangedCallback(InternalTargetPropertyChanged), 
                                   null,
                                   /* isIndependentlyAnimated  = */ false, 
                                   /* coerceValueCallback */ null);
            AutoWrapTargetProperty =
                  RegisterProperty("AutoWrapTarget",
                                   typeof(bool), 
                                   typeofThis,
                                   false, 
                                   new PropertyChangedCallback(AutoWrapTargetPropertyChanged), 
                                   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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