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
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Rect3D.cs
- ADMembershipProvider.cs
- ContentIterators.cs
- ClientRuntimeConfig.cs
- MouseGestureConverter.cs
- WebExceptionStatus.cs
- WorkerRequest.cs
- WebException.cs
- WebContext.cs
- DefaultTextStoreTextComposition.cs
- ConfigurationSectionGroup.cs
- BatchParser.cs
- QilDataSource.cs
- XmlValidatingReaderImpl.cs
- InputMethod.cs
- MultiSelector.cs
- ReflectionServiceProvider.cs
- DataGrid.cs
- MemberHolder.cs
- ApplicationBuildProvider.cs
- RayMeshGeometry3DHitTestResult.cs
- ArraySubsetEnumerator.cs
- _RequestCacheProtocol.cs
- CodeThrowExceptionStatement.cs
- SqlComparer.cs
- WebBrowserContainer.cs
- UDPClient.cs
- MenuEventArgs.cs
- PtsContext.cs
- UIElement3DAutomationPeer.cs
- StringInfo.cs
- ActivationArguments.cs
- DocumentPageViewAutomationPeer.cs
- CreateUserErrorEventArgs.cs
- HwndSubclass.cs
- InstanceDataCollectionCollection.cs
- DataGridViewCellConverter.cs
- BezierSegment.cs
- SessionStateSection.cs
- CompositeKey.cs
- GeometryValueSerializer.cs
- PropertyOverridesTypeEditor.cs
- Attributes.cs
- IconConverter.cs
- ImageSource.cs
- UnionCqlBlock.cs
- WebServiceHandlerFactory.cs
- WSSecurityOneDotOneSendSecurityHeader.cs
- ObjectAnimationUsingKeyFrames.cs
- ClusterSafeNativeMethods.cs
- CheckedListBox.cs
- ColumnResizeAdorner.cs
- BrowserCapabilitiesCodeGenerator.cs
- PageCache.cs
- ProfileModule.cs
- RotateTransform.cs
- CellIdBoolean.cs
- HeaderedItemsControl.cs
- DataGridViewToolTip.cs
- DynamicDiscoSearcher.cs
- TextBlockAutomationPeer.cs
- DataTemplate.cs
- XmlDataDocument.cs
- HttpCacheParams.cs
- MethodAccessException.cs
- Context.cs
- FontSourceCollection.cs
- EntityProviderServices.cs
- ListenDesigner.cs
- WorkflowEnvironment.cs
- RecommendedAsConfigurableAttribute.cs
- SemanticResolver.cs
- SecurityKeyUsage.cs
- Attributes.cs
- FlowDocumentPageViewerAutomationPeer.cs
- BooleanConverter.cs
- WebConfigurationHost.cs
- PageCodeDomTreeGenerator.cs
- HandoffBehavior.cs
- FileIOPermission.cs
- IFlowDocumentViewer.cs
- GAC.cs
- ImmComposition.cs
- AccessDataSource.cs
- ClusterSafeNativeMethods.cs
- unsafenativemethodstextservices.cs
- RemotingConfigParser.cs
- TransactionTable.cs
- FileClassifier.cs
- Matrix.cs
- DirtyTextRange.cs
- DesignerSerializationManager.cs
- RMEnrollmentPage3.cs
- RemotingServices.cs
- TextRenderer.cs
- SqlVisitor.cs
- ColumnMapTranslator.cs
- XmlNamespaceManager.cs
- bidPrivateBase.cs
- xml.cs