Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / System / Windows / Documents / AdornerDecorator.cs / 1 / AdornerDecorator.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: // AdornerDecorator class. // See spec at: http://avalon/uis/Specs/AdornerLayer%20Spec.htm // // History: // 1/29/2004 psarrett: Created // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Threading; namespace System.Windows.Documents { ////// This AdornerDecorator does not hookup its child in the logical tree. It's being /// used by PopupRoot and FixedDocument. /// internal class NonLogicalAdornerDecorator : AdornerDecorator { public override UIElement Child { get { return IntChild; } set { if (IntChild != value) { this.RemoveVisualChild(IntChild); this.RemoveVisualChild(AdornerLayer); IntChild = value; if(value != null) { this.AddVisualChild(value); this.AddVisualChild(AdornerLayer); } InvalidateMeasure(); } } } } ////// Object which allows elements beneath it in the visual tree to be adorned. /// AdornerDecorator has two children. /// The first child is the parent of the rest of the visual tree below the AdornerDecorator. /// The second child is the AdornerLayer on which adorners are rendered. /// /// AdornerDecorator is intended to be used as part of an object's Style. /// public class AdornerDecorator : Decorator { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Constructor /// public AdornerDecorator() : base() { _adornerLayer = new AdornerLayer(); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ #region Public Properties ////// AdornerLayer on which adorners are rendered. /// public AdornerLayer AdornerLayer { get { return _adornerLayer; } } #endregion Public Properties //----------------------------------------------------- // // Protected Methods // //------------------------------------------------------ #region Protected Methods ////// Measurement override. Implement your size-to-content logic here. /// /// /// Sizing constraint. /// protected override Size MeasureOverride(Size constraint) { Size desiredSize = base.MeasureOverride(constraint); if (VisualTreeHelper.GetParent(_adornerLayer) != null) { // We don't really care about the size of the AdornerLayer-- we'll // always just make the AdornerDecorator the full desiredSize. But // we need to measure it anyway, to make sure Adorners render. _adornerLayer.Measure(constraint); } return desiredSize; } ////// Override for /// The size reserved for this element by the parent ////// The actual ink area of the element, typically the same as finalSize protected override Size ArrangeOverride(Size finalSize) { Size inkSize = base.ArrangeOverride(finalSize); if (VisualTreeHelper.GetParent(_adornerLayer) != null) { _adornerLayer.Arrange(new Rect(finalSize)); } return (inkSize); } ////// Gets or sets the child of the AdornerDecorator. /// public override UIElement Child { get { return base.Child; } set { Visual old = base.Child; if (old == value) { return; } if (value == null) { base.Child = null; RemoveVisualChild(_adornerLayer); } else { base.Child = value; AddVisualChild(_adornerLayer); } } } ////// Returns the Visual children count. /// protected override int VisualChildrenCount { get { if (base.Child != null) { return 2; // One for the child and one for the adorner layer. } else { return 0; } } } ////// Returns the child at the specified index. /// protected override Visual GetVisualChild(int index) { if (base.Child == null) { throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } else { switch (index) { case 0: return base.Child; case 1: return _adornerLayer; default: throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } } } #endregion Protected Methods //----------------------------------------------------- // // Private Members // //----------------------------------------------------- #region Private Members // // This property // 1. Finds the correct initial size for the _effectiveValues store on the current DependencyObject // 2. This is a performance optimization // internal override int EffectiveValuesInitialSize { get { return 6; } } readonly AdornerLayer _adornerLayer; #endregion Private Members } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: // AdornerDecorator class. // See spec at: http://avalon/uis/Specs/AdornerLayer%20Spec.htm // // History: // 1/29/2004 psarrett: Created // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Threading; namespace System.Windows.Documents { ////// This AdornerDecorator does not hookup its child in the logical tree. It's being /// used by PopupRoot and FixedDocument. /// internal class NonLogicalAdornerDecorator : AdornerDecorator { public override UIElement Child { get { return IntChild; } set { if (IntChild != value) { this.RemoveVisualChild(IntChild); this.RemoveVisualChild(AdornerLayer); IntChild = value; if(value != null) { this.AddVisualChild(value); this.AddVisualChild(AdornerLayer); } InvalidateMeasure(); } } } } ////// Object which allows elements beneath it in the visual tree to be adorned. /// AdornerDecorator has two children. /// The first child is the parent of the rest of the visual tree below the AdornerDecorator. /// The second child is the AdornerLayer on which adorners are rendered. /// /// AdornerDecorator is intended to be used as part of an object's Style. /// public class AdornerDecorator : Decorator { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Constructor /// public AdornerDecorator() : base() { _adornerLayer = new AdornerLayer(); } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- //------------------------------------------------------ // // Public Properties // //------------------------------------------------------ #region Public Properties ////// AdornerLayer on which adorners are rendered. /// public AdornerLayer AdornerLayer { get { return _adornerLayer; } } #endregion Public Properties //----------------------------------------------------- // // Protected Methods // //------------------------------------------------------ #region Protected Methods ////// Measurement override. Implement your size-to-content logic here. /// /// /// Sizing constraint. /// protected override Size MeasureOverride(Size constraint) { Size desiredSize = base.MeasureOverride(constraint); if (VisualTreeHelper.GetParent(_adornerLayer) != null) { // We don't really care about the size of the AdornerLayer-- we'll // always just make the AdornerDecorator the full desiredSize. But // we need to measure it anyway, to make sure Adorners render. _adornerLayer.Measure(constraint); } return desiredSize; } ////// Override for /// The size reserved for this element by the parent ////// The actual ink area of the element, typically the same as finalSize protected override Size ArrangeOverride(Size finalSize) { Size inkSize = base.ArrangeOverride(finalSize); if (VisualTreeHelper.GetParent(_adornerLayer) != null) { _adornerLayer.Arrange(new Rect(finalSize)); } return (inkSize); } ////// Gets or sets the child of the AdornerDecorator. /// public override UIElement Child { get { return base.Child; } set { Visual old = base.Child; if (old == value) { return; } if (value == null) { base.Child = null; RemoveVisualChild(_adornerLayer); } else { base.Child = value; AddVisualChild(_adornerLayer); } } } ////// Returns the Visual children count. /// protected override int VisualChildrenCount { get { if (base.Child != null) { return 2; // One for the child and one for the adorner layer. } else { return 0; } } } ////// Returns the child at the specified index. /// protected override Visual GetVisualChild(int index) { if (base.Child == null) { throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } else { switch (index) { case 0: return base.Child; case 1: return _adornerLayer; default: throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } } } #endregion Protected Methods //----------------------------------------------------- // // Private Members // //----------------------------------------------------- #region Private Members // // This property // 1. Finds the correct initial size for the _effectiveValues store on the current DependencyObject // 2. This is a performance optimization // internal override int EffectiveValuesInitialSize { get { return 6; } } readonly AdornerLayer _adornerLayer; #endregion Private Members } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
![Network programming in C#, Network Programming in VB.NET, Network Programming in .NET](/images/book.jpg)
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- RecognitionEventArgs.cs
- ZipIOExtraField.cs
- DrawingImage.cs
- MemberPath.cs
- DeploymentSection.cs
- WebScriptEnablingBehavior.cs
- WindowCollection.cs
- PeerContact.cs
- RootNamespaceAttribute.cs
- MenuItemCollection.cs
- CommandDesigner.cs
- CapabilitiesState.cs
- categoryentry.cs
- FormattedText.cs
- Executor.cs
- GridViewPageEventArgs.cs
- BrowserDefinition.cs
- Int32CAMarshaler.cs
- SqlProvider.cs
- LineSegment.cs
- ExpressionBuilderCollection.cs
- TextAutomationPeer.cs
- Msec.cs
- ImageSource.cs
- SqlLiftIndependentRowExpressions.cs
- EventLog.cs
- webbrowsersite.cs
- MD5.cs
- SelectedGridItemChangedEvent.cs
- ModelUIElement3D.cs
- LoadedOrUnloadedOperation.cs
- ComContractElementCollection.cs
- BinaryNode.cs
- StorageAssociationSetMapping.cs
- ISAPIWorkerRequest.cs
- ConfigurationManagerHelper.cs
- CodeTypeReferenceCollection.cs
- PackageDigitalSignature.cs
- RelationshipFixer.cs
- XmlReturnReader.cs
- FtpRequestCacheValidator.cs
- UInt16Storage.cs
- SocketException.cs
- TargetException.cs
- Buffer.cs
- AppearanceEditorPart.cs
- MulticastOption.cs
- Variable.cs
- EventSource.cs
- ColorContext.cs
- ApplicationFileCodeDomTreeGenerator.cs
- Attributes.cs
- AssemblyInfo.cs
- RelationshipEnd.cs
- ToolStripItemRenderEventArgs.cs
- RequestContext.cs
- NTAccount.cs
- FactoryGenerator.cs
- UserControlParser.cs
- TextFormatter.cs
- PropertyConverter.cs
- TransformerInfoCollection.cs
- StateManagedCollection.cs
- ProjectionNode.cs
- ILGenerator.cs
- SemanticResolver.cs
- HyperLinkField.cs
- ObfuscationAttribute.cs
- WorkflowServiceHostFactory.cs
- SqlCacheDependencyDatabase.cs
- EncodingDataItem.cs
- ContentPropertyAttribute.cs
- WebProxyScriptElement.cs
- WebSysDisplayNameAttribute.cs
- sitestring.cs
- TextAdaptor.cs
- FileClassifier.cs
- ForceCopyBuildProvider.cs
- FilteredAttributeCollection.cs
- EventInfo.cs
- CLRBindingWorker.cs
- XmlMapping.cs
- TraceInternal.cs
- TextServicesCompartmentEventSink.cs
- NamespaceList.cs
- XPathNavigator.cs
- ConnectionConsumerAttribute.cs
- MeasureData.cs
- DecimalAnimationUsingKeyFrames.cs
- QueryContinueDragEvent.cs
- ContentHostHelper.cs
- XamlDesignerSerializationManager.cs
- DoubleAnimationBase.cs
- EditorBrowsableAttribute.cs
- PerformanceCounterPermission.cs
- ComboBoxRenderer.cs
- Viewport2DVisual3D.cs
- InputLangChangeRequestEvent.cs
- TableSectionStyle.cs
- Visual3DCollection.cs