DrawingBrush.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 / DrawingBrush.cs / 1305600 / DrawingBrush.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 DrawingBrush : TileBrush
    { 
        //----------------------------------------------------- 
        //
        //  Public Methods 
        //
        //-----------------------------------------------------

        #region Public Methods 

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

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

 
 

        #endregion Public Methods 

        //------------------------------------------------------
        //
        //  Public Properties 
        //
        //----------------------------------------------------- 
 
        private static void DrawingPropertyChanged(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; 
            }
 

            DrawingBrush target = ((DrawingBrush) d);

 
            Drawing oldV = (Drawing) e.OldValue;
            Drawing newV = (Drawing) 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(DrawingProperty); 
        }


        #region Public Properties 

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

        #endregion Public Properties
 
        //------------------------------------------------------
        // 
        //  Protected Methods 
        //
        //------------------------------------------------------ 

        #region Protected Methods

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

 

        #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; 
                Drawing vDrawing = Drawing; 

                // 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 hDrawing = vDrawing != null ? ((DUCE.IResource)vDrawing).GetHandle(channel) : DUCE.ResourceHandle.Null;
 
                // Obtain handles for animated properties 
                DUCE.ResourceHandle hOpacityAnimations = GetAnimationResourceHandle(OpacityProperty, channel);
                DUCE.ResourceHandle hViewportAnimations = GetAnimationResourceHandle(ViewportProperty, channel); 
                DUCE.ResourceHandle hViewboxAnimations = GetAnimationResourceHandle(ViewboxProperty, channel);

                // Pack & send command packet
                DUCE.MILCMD_DRAWINGBRUSH data; 
                unsafe
                { 
                    data.Type = MILCMD.MilCmdDrawingBrush; 
                    data.Handle = _duceResource.GetHandle(channel);
                    if (hOpacityAnimations.IsNull) 
                    {
                        data.Opacity = Opacity;
                    }
                    data.hOpacityAnimations = hOpacityAnimations; 
                    data.hTransform = hTransform;
                    data.hRelativeTransform = hRelativeTransform; 
                    data.ViewportUnits = ViewportUnits; 
                    data.ViewboxUnits = ViewboxUnits;
                    if (hViewportAnimations.IsNull) 
                    {
                        data.Viewport = Viewport;
                    }
                    data.hViewportAnimations = hViewportAnimations; 
                    if (hViewboxAnimations.IsNull)
                    { 
                        data.Viewbox = Viewbox; 
                    }
                    data.hViewboxAnimations = hViewboxAnimations; 
                    data.Stretch = Stretch;
                    data.TileMode = TileMode;
                    data.AlignmentX = AlignmentX;
                    data.AlignmentY = AlignmentY; 
                    data.CachingHint = (CachingHint)GetValue(RenderOptions.CachingHintProperty);
                    data.CacheInvalidationThresholdMinimum = (double)GetValue(RenderOptions.CacheInvalidationThresholdMinimumProperty); 
                    data.CacheInvalidationThresholdMaximum = (double)GetValue(RenderOptions.CacheInvalidationThresholdMaximumProperty); 
                    data.hDrawing = hDrawing;
 
                    // Send packed command structure
                    channel.SendCommand(
                        (byte*)&data,
                        sizeof(DUCE.MILCMD_DRAWINGBRUSH)); 
                }
            } 
        } 
        internal override DUCE.ResourceHandle AddRefOnChannelCore(DUCE.Channel channel)
        { 

                if (_duceResource.CreateOrAddRefOnChannel(this, channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_DRAWINGBRUSH))
                {
                    Transform vTransform = Transform; 
                    if (vTransform != null) ((DUCE.IResource)vTransform).AddRefOnChannel(channel);
                    Transform vRelativeTransform = RelativeTransform; 
                    if (vRelativeTransform != null) ((DUCE.IResource)vRelativeTransform).AddRefOnChannel(channel); 
                    Drawing vDrawing = Drawing;
                    if (vDrawing != null) ((DUCE.IResource)vDrawing).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);
                    Transform vRelativeTransform = RelativeTransform;
                    if (vRelativeTransform != null) ((DUCE.IResource)vRelativeTransform).ReleaseOnChannel(channel);
                    Drawing vDrawing = Drawing; 
                    if (vDrawing != null) ((DUCE.IResource)vDrawing).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); 
        }
 

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

 

        #endregion Internal Properties

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

        /// 
        ///     The DependencyProperty for the DrawingBrush.Drawing property. 
        /// 
        public static readonly DependencyProperty DrawingProperty; 
 
        #endregion Dependency Properties
 
        //-----------------------------------------------------
        //
        //  Internal Fields
        // 
        //------------------------------------------------------
 
        #region Internal Fields 

 

        internal System.Windows.Media.Composition.DUCE.MultiChannelResource _duceResource = new System.Windows.Media.Composition.DUCE.MultiChannelResource();

 

        #endregion Internal Fields 
 

 
        #region Constructors

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

        static DrawingBrush() 
        {
            // 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(DrawingBrush);
            DrawingProperty =
                  RegisterProperty("Drawing",
                                   typeof(Drawing), 
                                   typeofThis,
                                   null, 
                                   new PropertyChangedCallback(DrawingPropertyChanged), 
                                   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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