Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Media / RenderDataDrawingContext.cs / 1 / RenderDataDrawingContext.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2003 // // File: RenderDataDrawingContext.cs // // History: // GSchneid: 04/19/2003 // Created it based on the RenderDataDrawingContext used in the AvPhat branch. // adsmith: 07/02/2003 // Renamed to RenderDataDrawingContext, which derives from DrawingContext // adsmith: 07/02/2003 // Renamed to RenderDataDrawingContext, which derives from DrawingContext // This class no longer understand Visuals, and simply produces RenderData. // //----------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Security.Permissions; using System.Windows; using System.Windows.Threading; using System.Windows.Media.Animation; using System.Windows.Media; using System.Windows.Media.Composition; using System.Diagnostics; using MS.Internal; using System.Security; //----------------------------------------------------------------------------- // This section lists various things that we could improve on the DrawingContxt // class. // // - Remove the isAnimated flag from being propagated everywhere. Rather mark // the pail when we add an animated argument. //----------------------------------------------------------------------------- namespace System.Windows.Media { ////// Drawing context. /// internal partial class RenderDataDrawingContext : DrawingContext, IDisposable { #region Constructors ////// Creates a drawing context which is associated with a given Dispatcher /// internal RenderDataDrawingContext() { } #endregion Constructors #region Public Methods internal RenderData GetRenderData() { return _renderData; } ////// Closes the DrawingContext and flushes the content. /// Afterwards the DrawingContext can not be used anymore. /// This call does not require all Push calls to have been Popped. /// ////// This call is illegal if this object has already been closed or disposed. /// public override void Close() { VerifyApiNonstructuralChange(); ((IDisposable)this).Dispose(); } ////// This is the same as the Close call: /// Closes the DrawingContext and flushes the content. /// Afterwards the DrawingContext can not be used anymore. /// This call does not require all Push calls to have been Popped. /// ////// This call is illegal if this object has already been closed or disposed. /// protected override void DisposeCore() { if (!_disposed) { EnsureCorrectNesting(); CloseCore(_renderData); _disposed = true; } } #endregion Public Methods #region Protected Methods ////// CloseCore - Implemented be derivees to Close the context. /// This will only be called once (if ever) per instance. /// /// The render data produced by this RenderDataDrawingContext. protected virtual void CloseCore(RenderData renderData) {} #endregion Protected Methods #region Private Methods ////// EnsureRenderData - this method ensures that the _renderData variable is initialized. /// The render data's _buffer will be lazily instantiated via the Draw* methods which all /// call WriteDataRecord. /// private void EnsureRenderData() { if (_renderData == null) { _renderData = new RenderData(); } } ////// This verifies that the API can be called for access which doesn't affect structure. /// protected override void VerifyApiNonstructuralChange() { base.VerifyApiNonstructuralChange(); if (_disposed) { throw new ObjectDisposedException("RenderDataDrawingContext"); } } ////// This method checks if there were any Push calls that were not matched by /// the corresponding Pop. If this is the case, this method adds corresponding /// number of Pop instructions to the render data. /// private void EnsureCorrectNesting() { if (_renderData != null && _stackDepth > 0) { int stackDepth = _stackDepth; for (int i = 0; i < stackDepth; i++) { Pop(); } } _stackDepth = 0; } #endregion Private Methods #region Fields private RenderData _renderData; private bool _disposed; private int _stackDepth; #endregion Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2003 // // File: RenderDataDrawingContext.cs // // History: // GSchneid: 04/19/2003 // Created it based on the RenderDataDrawingContext used in the AvPhat branch. // adsmith: 07/02/2003 // Renamed to RenderDataDrawingContext, which derives from DrawingContext // adsmith: 07/02/2003 // Renamed to RenderDataDrawingContext, which derives from DrawingContext // This class no longer understand Visuals, and simply produces RenderData. // //----------------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Security.Permissions; using System.Windows; using System.Windows.Threading; using System.Windows.Media.Animation; using System.Windows.Media; using System.Windows.Media.Composition; using System.Diagnostics; using MS.Internal; using System.Security; //----------------------------------------------------------------------------- // This section lists various things that we could improve on the DrawingContxt // class. // // - Remove the isAnimated flag from being propagated everywhere. Rather mark // the pail when we add an animated argument. //----------------------------------------------------------------------------- namespace System.Windows.Media { ////// Drawing context. /// internal partial class RenderDataDrawingContext : DrawingContext, IDisposable { #region Constructors ////// Creates a drawing context which is associated with a given Dispatcher /// internal RenderDataDrawingContext() { } #endregion Constructors #region Public Methods internal RenderData GetRenderData() { return _renderData; } ////// Closes the DrawingContext and flushes the content. /// Afterwards the DrawingContext can not be used anymore. /// This call does not require all Push calls to have been Popped. /// ////// This call is illegal if this object has already been closed or disposed. /// public override void Close() { VerifyApiNonstructuralChange(); ((IDisposable)this).Dispose(); } ////// This is the same as the Close call: /// Closes the DrawingContext and flushes the content. /// Afterwards the DrawingContext can not be used anymore. /// This call does not require all Push calls to have been Popped. /// ////// This call is illegal if this object has already been closed or disposed. /// protected override void DisposeCore() { if (!_disposed) { EnsureCorrectNesting(); CloseCore(_renderData); _disposed = true; } } #endregion Public Methods #region Protected Methods ////// CloseCore - Implemented be derivees to Close the context. /// This will only be called once (if ever) per instance. /// /// The render data produced by this RenderDataDrawingContext. protected virtual void CloseCore(RenderData renderData) {} #endregion Protected Methods #region Private Methods ////// EnsureRenderData - this method ensures that the _renderData variable is initialized. /// The render data's _buffer will be lazily instantiated via the Draw* methods which all /// call WriteDataRecord. /// private void EnsureRenderData() { if (_renderData == null) { _renderData = new RenderData(); } } ////// This verifies that the API can be called for access which doesn't affect structure. /// protected override void VerifyApiNonstructuralChange() { base.VerifyApiNonstructuralChange(); if (_disposed) { throw new ObjectDisposedException("RenderDataDrawingContext"); } } ////// This method checks if there were any Push calls that were not matched by /// the corresponding Pop. If this is the case, this method adds corresponding /// number of Pop instructions to the render data. /// private void EnsureCorrectNesting() { if (_renderData != null && _stackDepth > 0) { int stackDepth = _stackDepth; for (int i = 0; i < stackDepth; i++) { Pop(); } } _stackDepth = 0; } #endregion Private Methods #region Fields private RenderData _renderData; private bool _disposed; private int _stackDepth; #endregion Fields } } // 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
- DataStorage.cs
- DbReferenceCollection.cs
- SimpleBitVector32.cs
- WebPartHelpVerb.cs
- ItemCollection.cs
- ApplicationSettingsBase.cs
- WorkflowControlClient.cs
- Oid.cs
- ParagraphResult.cs
- CallbackHandler.cs
- EasingQuaternionKeyFrame.cs
- RemotingSurrogateSelector.cs
- QilDataSource.cs
- EventDescriptorCollection.cs
- CodeCatchClause.cs
- ClipboardData.cs
- HttpStreamMessageEncoderFactory.cs
- HttpCachePolicyElement.cs
- TypeConverterAttribute.cs
- InstanceLockQueryResult.cs
- ClientScriptManager.cs
- DefaultTraceListener.cs
- ScrollChrome.cs
- ValidationRule.cs
- XPathAxisIterator.cs
- ProfilePropertySettings.cs
- WindowsRebar.cs
- DoubleAnimation.cs
- DockPanel.cs
- IdentifierCreationService.cs
- WebResourceUtil.cs
- UpdatePanelTriggerCollection.cs
- ToolStripTextBox.cs
- Int16AnimationUsingKeyFrames.cs
- PrivilegeNotHeldException.cs
- ApplicationId.cs
- PaintEvent.cs
- TemplateControlBuildProvider.cs
- ArrayElementGridEntry.cs
- TypeRestriction.cs
- ToolBar.cs
- RemoteDebugger.cs
- DocumentViewerAutomationPeer.cs
- ControlEvent.cs
- HitTestResult.cs
- EventLogPermissionEntry.cs
- IsolatedStorage.cs
- XmlUnspecifiedAttribute.cs
- InfoCardRSAOAEPKeyExchangeFormatter.cs
- SqlCachedBuffer.cs
- querybuilder.cs
- MarkerProperties.cs
- CfgParser.cs
- RuleAttributes.cs
- LeaseManager.cs
- SqlDataSourceFilteringEventArgs.cs
- Switch.cs
- RenderCapability.cs
- DataGridViewTextBoxColumn.cs
- WebEventTraceProvider.cs
- AlternateView.cs
- BuildManagerHost.cs
- XamlTreeBuilderBamlRecordWriter.cs
- CodeBinaryOperatorExpression.cs
- SerializableAttribute.cs
- UserNamePasswordServiceCredential.cs
- DesignerForm.cs
- FieldToken.cs
- ConnectionPoolRegistry.cs
- MsmqChannelFactoryBase.cs
- AccessViolationException.cs
- SelectQueryOperator.cs
- DurationConverter.cs
- CheckBoxBaseAdapter.cs
- ComponentResourceKeyConverter.cs
- WebPartMovingEventArgs.cs
- odbcmetadatacolumnnames.cs
- TypeNameConverter.cs
- EntityDesignerDataSourceView.cs
- ConnectionStringsExpressionBuilder.cs
- CodeTypeParameter.cs
- RowUpdatingEventArgs.cs
- XmlBinaryReader.cs
- DatatypeImplementation.cs
- UpDownBaseDesigner.cs
- MD5CryptoServiceProvider.cs
- EnumBuilder.cs
- ViewPort3D.cs
- NonParentingControl.cs
- AmbiguousMatchException.cs
- RenderDataDrawingContext.cs
- ExpandCollapseProviderWrapper.cs
- GiveFeedbackEvent.cs
- HttpRuntimeSection.cs
- VectorConverter.cs
- HttpApplicationFactory.cs
- FixedFlowMap.cs
- AsyncStreamReader.cs
- ModelUIElement3D.cs
- ExceptionHelpers.cs