Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Imaging / BitmapFrameEncode.cs / 1 / BitmapFrameEncode.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation // // File: BitmapFrameEncode.cs // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.ObjectModel; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Security; using System.Security.Permissions; using System.Runtime.InteropServices; using System.Windows.Media.Animation; using System.Windows.Media.Composition; using System.Windows.Media.Imaging; using MS.Win32; namespace System.Windows.Media.Imaging { #region BitmapFrameEncode ////// BitmapFrameEncode abstract class /// internal sealed class BitmapFrameEncode : BitmapFrame { #region Constructors ////// Internal constructor /// ////// SecurityCritical: Accesses unmanaged resources (_wicSource) /// SecurityTreatAsSafe: Inputs are verified and _wicSource and the get is Critical /// [SecurityCritical, SecurityTreatAsSafe] internal BitmapFrameEncode( BitmapSource source, BitmapSource thumbnail, BitmapMetadata metadata, ReadOnlyCollectioncolorContexts ) : base(true) { _bitmapInit.BeginInit(); Debug.Assert(source != null); _source = source; WicSourceHandle = _source.WicSourceHandle; IsSourceCached = _source.IsSourceCached; _isColorCorrected = _source._isColorCorrected; _thumbnail = thumbnail; _readOnlycolorContexts = colorContexts; InternalMetadata = metadata; _syncObject = source.SyncObject; _bitmapInit.EndInit(); FinalizeCreation(); } /// /// Do not allow construction /// This will be called for cloning /// private BitmapFrameEncode() : base(true) { } #endregion #region IUriContext ////// Provides the base uri of the current context. /// public override Uri BaseUri { get { ReadPreamble(); return null; } set { WritePreamble(); } } #endregion #region Public Properties ////// Accesses the Thumbnail property for this BitmapFrameEncode /// public override BitmapSource Thumbnail { get { ReadPreamble(); return _thumbnail; } } ////// Accesses the Metadata property for this BitmapFrameEncode /// public override ImageMetadata Metadata { get { ReadPreamble(); return InternalMetadata; } } ////// Accesses the Decoder property for this BitmapFrameEncode /// public override BitmapDecoder Decoder { get { ReadPreamble(); return null; } } ////// Accesses the ColorContext property for this BitmapFrameEncode /// public override ReadOnlyCollectionColorContexts { get { ReadPreamble(); return _readOnlycolorContexts; } } #endregion #region Public Methods /// /// Create an in-place bitmap metadata writer. /// public override InPlaceBitmapMetadataWriter CreateInPlaceBitmapMetadataWriter() { ReadPreamble(); return null; } #endregion #region Freezable ////// Implementation of ///Freezable.CreateInstanceCore . ///The new Freezable. protected override Freezable CreateInstanceCore() { return new BitmapFrameEncode(); } ////// Copy the fields not covered by DPs. This is used by /// CloneCore(), CloneCurrentValueCore(), GetAsFrozenCore() and /// GetCurrentValueAsFrozenCore(). /// private void CopyCommon(BitmapFrameEncode sourceBitmapFrameEncode) { _bitmapInit.BeginInit(); Debug.Assert(sourceBitmapFrameEncode._source != null); _source = sourceBitmapFrameEncode._source; _frameSource = sourceBitmapFrameEncode._frameSource; _thumbnail = sourceBitmapFrameEncode._thumbnail; _readOnlycolorContexts = sourceBitmapFrameEncode.ColorContexts; if (sourceBitmapFrameEncode.InternalMetadata != null) { InternalMetadata = sourceBitmapFrameEncode.InternalMetadata.Clone(); } _bitmapInit.EndInit(); } ////// Implementation of protected override void CloneCore(Freezable sourceFreezable) { BitmapFrameEncode sourceBitmapFrameEncode = (BitmapFrameEncode)sourceFreezable; base.CloneCore(sourceFreezable); CopyCommon(sourceBitmapFrameEncode); } ///Freezable.CloneCore . ////// Implementation of protected override void CloneCurrentValueCore(Freezable sourceFreezable) { BitmapFrameEncode sourceBitmapFrameEncode = (BitmapFrameEncode)sourceFreezable; base.CloneCurrentValueCore(sourceFreezable); CopyCommon(sourceBitmapFrameEncode); } ///Freezable.CloneCurrentValueCore . ////// Implementation of protected override void GetAsFrozenCore(Freezable sourceFreezable) { BitmapFrameEncode sourceBitmapFrameEncode = (BitmapFrameEncode)sourceFreezable; base.GetAsFrozenCore(sourceFreezable); CopyCommon(sourceBitmapFrameEncode); } ///Freezable.GetAsFrozenCore . ////// Implementation of protected override void GetCurrentValueAsFrozenCore(Freezable sourceFreezable) { BitmapFrameEncode sourceBitmapFrameEncode = (BitmapFrameEncode)sourceFreezable; base.GetCurrentValueAsFrozenCore(sourceFreezable); CopyCommon(sourceBitmapFrameEncode); } #endregion #region Internal Properties / Methods ///Freezable.GetCurrentValueAsFrozenCore . ////// Create the unmanaged resources /// ////// Critical - access critical resources /// TreatAsSafe - All inputs verified /// [SecurityCritical, SecurityTreatAsSafe] internal override void FinalizeCreation() { CreationCompleted = true; UpdateCachedSettings(); } ////// Internally stores the bitmap metadata /// ////// Critical - Access critical resource (_metadata) /// TreatAsSafe - site of origin is verified if possible. /// internal override BitmapMetadata InternalMetadata { [SecurityCritical, SecurityTreatAsSafe] get { // Demand Site Of Origin on the URI before usage of metadata. CheckIfSiteOfOrigin(); return _metadata; } [SecurityCritical, SecurityTreatAsSafe] set { // Demand Site Of Origin on the URI before usage of metadata. CheckIfSiteOfOrigin(); _metadata = value; } } #endregion #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion #region Data Members /// Source for this Frame private BitmapSource _source; #endregion } #endregion // BitmapFrameEncode } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- CellPartitioner.cs
- GeometryHitTestParameters.cs
- OptimizerPatterns.cs
- WebPartMinimizeVerb.cs
- FileDialogCustomPlace.cs
- FieldNameLookup.cs
- DataRow.cs
- BitmapEffectOutputConnector.cs
- WebPartManager.cs
- SmiContextFactory.cs
- RegexNode.cs
- TypedReference.cs
- TransformPattern.cs
- GeneratedCodeAttribute.cs
- ContentTextAutomationPeer.cs
- XPathExpr.cs
- ObjectView.cs
- XmlEncodedRawTextWriter.cs
- UpdatableWrapper.cs
- SoapConverter.cs
- TriggerActionCollection.cs
- Int16.cs
- BaseTreeIterator.cs
- Freezable.cs
- MasterPageParser.cs
- ItemsControlAutomationPeer.cs
- WmpBitmapDecoder.cs
- Environment.cs
- UserControlBuildProvider.cs
- DesignRelation.cs
- ToolboxItemAttribute.cs
- TextTreeDeleteContentUndoUnit.cs
- FixedTextPointer.cs
- ResourcesChangeInfo.cs
- RoutedEventArgs.cs
- WebPartUserCapability.cs
- HttpPostedFileWrapper.cs
- PostBackOptions.cs
- JavaScriptSerializer.cs
- DataGridViewRowCancelEventArgs.cs
- ProcessHostMapPath.cs
- QueryContinueDragEventArgs.cs
- XmlHierarchyData.cs
- ListViewTableCell.cs
- BinaryFormatter.cs
- DbConnectionOptions.cs
- ImageFormat.cs
- EnumMember.cs
- HtmlUtf8RawTextWriter.cs
- CodeChecksumPragma.cs
- LinqDataSourceView.cs
- PageThemeBuildProvider.cs
- Int32AnimationUsingKeyFrames.cs
- ButtonBase.cs
- ClientTargetCollection.cs
- WebUtil.cs
- HostProtectionPermission.cs
- DbBuffer.cs
- Validator.cs
- SecurityRuntime.cs
- GeometryConverter.cs
- ServiceContractGenerator.cs
- RefExpr.cs
- DataControlFieldCollection.cs
- XmlObjectSerializerWriteContextComplex.cs
- InfoCardRSAOAEPKeyExchangeFormatter.cs
- DbConnectionPoolCounters.cs
- SocketException.cs
- ExpandCollapseIsCheckedConverter.cs
- ClientSettingsSection.cs
- SafeProcessHandle.cs
- PeerNameResolver.cs
- LoadRetryAsyncResult.cs
- UmAlQuraCalendar.cs
- DataGrid.cs
- OdbcErrorCollection.cs
- SvcMapFileSerializer.cs
- XMLUtil.cs
- HttpUnhandledOperationInvoker.cs
- RectangleF.cs
- SqlParameterCollection.cs
- WebConfigurationHost.cs
- ToolStripScrollButton.cs
- GridViewDeletedEventArgs.cs
- SafeEventHandle.cs
- UdpReplyToBehavior.cs
- CanonicalXml.cs
- NullableIntMinMaxAggregationOperator.cs
- ApplicationCommands.cs
- RawStylusActions.cs
- HMACSHA512.cs
- NotSupportedException.cs
- ExpressionBuilder.cs
- TreeSet.cs
- ToolStripMenuItemCodeDomSerializer.cs
- HtmlElement.cs
- SqlDataSourceFilteringEventArgs.cs
- ImageKeyConverter.cs
- XmlSerializerSection.cs
- AlgoModule.cs