Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Imaging / ColorConvertedBitmap.cs / 1 / ColorConvertedBitmap.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation. All Rights Reserved. // // File: ColorConvertedBitmap.cs // //----------------------------------------------------------------------------- using System; using System.IO; using System.Collections; using System.Collections.Generic; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Security; using System.Security.Permissions; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; using System.Windows.Media.Animation; using System.Windows.Media.Composition; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows.Media.Imaging { #region ColorConvertedBitmap ////// ColorConvertedBitmap provides caching functionality for a BitmapSource. /// public sealed partial class ColorConvertedBitmap : Imaging.BitmapSource, ISupportInitialize { ////// Constructor /// public ColorConvertedBitmap() : base(true) { } ////// Construct a ColorConvertedBitmap /// /// Input BitmapSource to color convert /// Source Color Context /// Destination Color Context /// Destination Pixel format public ColorConvertedBitmap(BitmapSource source, ColorContext sourceColorContext, ColorContext destinationColorContext, PixelFormat format) : base(true) // Use base class virtuals { if (source == null) { throw new ArgumentNullException("source"); } if (sourceColorContext == null) { throw new ArgumentNullException("sourceColorContext"); } if (destinationColorContext == null) { throw new ArgumentNullException("destinationColorContext"); } _bitmapInit.BeginInit(); Source = source; SourceColorContext = sourceColorContext; DestinationColorContext = destinationColorContext; DestinationFormat = format; _bitmapInit.EndInit(); FinalizeCreation(); } // ISupportInitialize ////// Prepare the bitmap to accept initialize paramters. /// public void BeginInit() { WritePreamble(); _bitmapInit.BeginInit(); } ////// Prepare the bitmap to accept initialize paramters. /// ////// Critical - access critical resources /// PublicOK - All inputs verified /// [SecurityCritical ] public void EndInit() { WritePreamble(); _bitmapInit.EndInit(); if (Source == null) { throw new InvalidOperationException(SR.Get(SRID.Image_NoArgument, "Source")); } if ( SourceColorContext == null) { throw new InvalidOperationException(SR.Get(SRID.Color_NullColorContext)); } if (DestinationColorContext == null) { throw new InvalidOperationException(SR.Get(SRID.Image_NoArgument, "DestinationColorContext")); } FinalizeCreation(); } private void ClonePrequel(ColorConvertedBitmap otherColorConvertedBitmap) { BeginInit(); } private void ClonePostscript(ColorConvertedBitmap otherColorConvertedBitmap) { EndInit(); } /// /// Create the unmanaged resources /// ////// Critical - access critical resource /// [SecurityCritical] internal override void FinalizeCreation() { _bitmapInit.EnsureInitializedComplete(); BitmapSourceSafeMILHandle wicConverter = null; HRESULT.Check(UnsafeNativeMethods.WICCodec.CreateColorTransform( out wicConverter)); lock (_syncObject) { Guid fmtDestFmt = DestinationFormat.Guid; HRESULT.Check(UnsafeNativeMethods.WICColorTransform.Initialize( wicConverter, Source.WicSourceHandle, SourceColorContext.ColorContextHandle, DestinationColorContext.ColorContextHandle, ref fmtDestFmt)); } WicSourceHandle = wicConverter; _isSourceCached = Source.IsSourceCached; CreationCompleted = true; UpdateCachedSettings(); } ////// Notification on source changing. /// private void SourcePropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { BitmapSource newSource = e.NewValue as BitmapSource; _source = newSource; _syncObject = (newSource != null) ? newSource.SyncObject : _bitmapInit; } } ////// Notification on source colorcontext changing. /// private void SourceColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _sourceColorContext = e.NewValue as ColorContext; } } ////// Notification on destination colorcontext changing. /// private void DestinationColorContextPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _destinationColorContext = e.NewValue as ColorContext; } } ////// Notification on destination format changing. /// private void DestinationFormatPropertyChangedHook(DependencyPropertyChangedEventArgs e) { if (!e.IsASubPropertyChange) { _destinationFormat = (PixelFormat)e.NewValue; } } ////// Coerce Source /// private static object CoerceSource(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._source; } else { return value; } } ////// Coerce SourceColorContext /// private static object CoerceSourceColorContext(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._sourceColorContext; } else { return value; } } ////// Coerce DestinationColorContext /// private static object CoerceDestinationColorContext(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._destinationColorContext; } else { return value; } } ////// Coerce DestinationFormat /// private static object CoerceDestinationFormat(DependencyObject d, object value) { ColorConvertedBitmap bitmap = (ColorConvertedBitmap)d; if (!bitmap._bitmapInit.IsInInit) { return bitmap._destinationFormat; } else { return value; } } #region Data members private BitmapSource _source; private ColorContext _sourceColorContext; private ColorContext _destinationColorContext; private PixelFormat _destinationFormat; #endregion } #endregion // ColorConvertedBitmap } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TextChangedEventArgs.cs
- Pts.cs
- InfoCardTrace.cs
- ItemChangedEventArgs.cs
- EventToken.cs
- PointConverter.cs
- HashCodeCombiner.cs
- WsdlHelpGeneratorElement.cs
- WebPartDisplayModeCollection.cs
- AutomationPeer.cs
- WebContext.cs
- SQLBoolean.cs
- XPathAxisIterator.cs
- PrivilegedConfigurationManager.cs
- PerspectiveCamera.cs
- DbParameterCollectionHelper.cs
- QilTypeChecker.cs
- CmsInterop.cs
- SubclassTypeValidator.cs
- TextLineResult.cs
- ResourcePart.cs
- ToolbarAUtomationPeer.cs
- SessionSwitchEventArgs.cs
- Brushes.cs
- MultipartContentParser.cs
- JapaneseCalendar.cs
- EditorPartCollection.cs
- PropertySegmentSerializer.cs
- WorkflowTransactionService.cs
- RemotingConfiguration.cs
- PageBuildProvider.cs
- UidPropertyAttribute.cs
- ToolboxItem.cs
- CodeNamespaceImportCollection.cs
- Mutex.cs
- CompoundFileStreamReference.cs
- Claim.cs
- DictationGrammar.cs
- DiscriminatorMap.cs
- XmlQualifiedName.cs
- RightsManagementPermission.cs
- SectionVisual.cs
- EventLogPermission.cs
- MulticastOption.cs
- ExpressionNode.cs
- LocalClientSecuritySettings.cs
- ContentIterators.cs
- Int32Rect.cs
- SplineKeyFrames.cs
- ScriptingScriptResourceHandlerSection.cs
- BackStopAuthenticationModule.cs
- SpecularMaterial.cs
- TrackingServices.cs
- WorkerRequest.cs
- NotImplementedException.cs
- UriTemplateVariablePathSegment.cs
- _SslStream.cs
- WebDescriptionAttribute.cs
- XmlNavigatorFilter.cs
- SinglePageViewer.cs
- ProxyGenerator.cs
- SingleStorage.cs
- CancellationTokenRegistration.cs
- LinkClickEvent.cs
- InheritanceRules.cs
- TreeViewAutomationPeer.cs
- SqlUtil.cs
- TextTabProperties.cs
- RegularExpressionValidator.cs
- MsmqIntegrationBindingElement.cs
- UInt64Storage.cs
- PerformanceCounterManager.cs
- FtpWebResponse.cs
- EntityObject.cs
- ColorTransformHelper.cs
- IfJoinedCondition.cs
- Size.cs
- PolyLineSegment.cs
- SrgsDocumentParser.cs
- SecureStringHasher.cs
- CodeMemberMethod.cs
- ToolStripPanelCell.cs
- ConfigurationCollectionAttribute.cs
- WeakEventTable.cs
- ErrorWebPart.cs
- FamilyCollection.cs
- OdbcError.cs
- XmlAnyAttributeAttribute.cs
- RangeValuePattern.cs
- FileIOPermission.cs
- GlyphTypeface.cs
- Decorator.cs
- PostBackTrigger.cs
- StatusBar.cs
- GradientStop.cs
- ExceptionRoutedEventArgs.cs
- ListControlStringCollectionEditor.cs
- CursorEditor.cs
- RootDesignerSerializerAttribute.cs
- ShapeTypeface.cs