Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / System / Windows / Annotations / AnnotationComponentChooser.cs / 1 / AnnotationComponentChooser.cs
//---------------------------------------------------------------------------- //// Copyright(C) Microsoft Corporation. All rights reserved. // // // Description: // AnnotationComponentChooser // // History: // 04/01/2004 axelk: Created AnnotationComponentChooser.cs // // Copyright(C) 2002 by Microsoft Corporation. All rights reserved. //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Reflection; using System.Windows; using System.Windows.Controls; using MS.Internal.Annotations; using MS.Internal.Annotations.Component; namespace System.Windows.Annotations { ////// Instances of this class choose an IAnnotationComponent for a given AttachedAnnotation. /// The AnnotationService.Chooser DP is used to set such instances on the application tree. /// internal sealed class AnnotationComponentChooser { #region Public Statics /* * This member is not used in V1. Its only used to set no chooser but in V1 we don't * expose changing the chooser. We have one and only one chooser. * ////// Singleton to set no chooser to be used. /// public static readonly AnnotationComponentChooser None = new NoAnnotationComponentChooser(); * */ #endregion Public Statics #region Constructors ////// Return a default AnnotationComponentChooser /// public AnnotationComponentChooser() { } #endregion Constructors #region Public Methods ////// Choose an IAnnotationComponent for a given IAttachedAnnotation. Implementation in AnnotationComponentChooser knows /// about all out-of-box IAnnotationComponents. The default mapping will be stated here later. /// Subclasses can overwrite this method to return application specific mapping. /// Note: In future release this method should be made virtual. /// /// The IAttachedAnnotation that needs an IAnnotationComponent ///public IAnnotationComponent ChooseAnnotationComponent(IAttachedAnnotation attachedAnnotation) { if (attachedAnnotation == null) throw new ArgumentNullException("attachedAnnotation"); IAnnotationComponent ac = null; // Text StickyNote if (attachedAnnotation.Annotation.AnnotationType == StickyNoteControl.TextSchemaName) { ac = new StickyNoteControl(StickyNoteType.Text) as IAnnotationComponent; } // Ink StickyNote else if (attachedAnnotation.Annotation.AnnotationType == StickyNoteControl.InkSchemaName) { ac = new StickyNoteControl(StickyNoteType.Ink) as IAnnotationComponent; } // Highlight else if (attachedAnnotation.Annotation.AnnotationType == HighlightComponent.TypeName) { ac = new HighlightComponent() as IAnnotationComponent; } return ac; } #endregion Public Methods #region Private Classes /* * This class won't be used in V1. We have one and only one chooser. There's no way to change it. * /// /// There is only one instance of this class (in AnnotationComponentChooser.None), it always returns null for any given IAttachedAnnotation. /// It does not throw an exception for a null attached annotation. /// It indicates that no choosing should be performed in the subtree that the instance is attached to. /// private class NoAnnotationComponentChooser : AnnotationComponentChooser { public override IAnnotationComponent ChooseAnnotationComponent(IAttachedAnnotation attachedAnnotation) { return null; } } * */ #endregion Private Classes } } // 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: // AnnotationComponentChooser // // History: // 04/01/2004 axelk: Created AnnotationComponentChooser.cs // // Copyright(C) 2002 by Microsoft Corporation. All rights reserved. //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Reflection; using System.Windows; using System.Windows.Controls; using MS.Internal.Annotations; using MS.Internal.Annotations.Component; namespace System.Windows.Annotations { ////// Instances of this class choose an IAnnotationComponent for a given AttachedAnnotation. /// The AnnotationService.Chooser DP is used to set such instances on the application tree. /// internal sealed class AnnotationComponentChooser { #region Public Statics /* * This member is not used in V1. Its only used to set no chooser but in V1 we don't * expose changing the chooser. We have one and only one chooser. * ////// Singleton to set no chooser to be used. /// public static readonly AnnotationComponentChooser None = new NoAnnotationComponentChooser(); * */ #endregion Public Statics #region Constructors ////// Return a default AnnotationComponentChooser /// public AnnotationComponentChooser() { } #endregion Constructors #region Public Methods ////// Choose an IAnnotationComponent for a given IAttachedAnnotation. Implementation in AnnotationComponentChooser knows /// about all out-of-box IAnnotationComponents. The default mapping will be stated here later. /// Subclasses can overwrite this method to return application specific mapping. /// Note: In future release this method should be made virtual. /// /// The IAttachedAnnotation that needs an IAnnotationComponent ///public IAnnotationComponent ChooseAnnotationComponent(IAttachedAnnotation attachedAnnotation) { if (attachedAnnotation == null) throw new ArgumentNullException("attachedAnnotation"); IAnnotationComponent ac = null; // Text StickyNote if (attachedAnnotation.Annotation.AnnotationType == StickyNoteControl.TextSchemaName) { ac = new StickyNoteControl(StickyNoteType.Text) as IAnnotationComponent; } // Ink StickyNote else if (attachedAnnotation.Annotation.AnnotationType == StickyNoteControl.InkSchemaName) { ac = new StickyNoteControl(StickyNoteType.Ink) as IAnnotationComponent; } // Highlight else if (attachedAnnotation.Annotation.AnnotationType == HighlightComponent.TypeName) { ac = new HighlightComponent() as IAnnotationComponent; } return ac; } #endregion Public Methods #region Private Classes /* * This class won't be used in V1. We have one and only one chooser. There's no way to change it. * /// /// There is only one instance of this class (in AnnotationComponentChooser.None), it always returns null for any given IAttachedAnnotation. /// It does not throw an exception for a null attached annotation. /// It indicates that no choosing should be performed in the subtree that the instance is attached to. /// private class NoAnnotationComponentChooser : AnnotationComponentChooser { public override IAnnotationComponent ChooseAnnotationComponent(IAttachedAnnotation attachedAnnotation) { return null; } } * */ #endregion Private Classes } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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