Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / MS / Internal / Annotations / Anchoring / SelectionProcessor.cs / 1305600 / SelectionProcessor.cs
//------------------------------------------------------------------------------ // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // Description: // SelectionProcessor is an abstract class defining the API for // creating and processing selections in the annotation framework. // SelectionProcessors are responsible for creating locator parts representing // a selection and for creating selections based on a locator part. // Spec: http://team/sites/ag/Specifications/Anchoring%20Namespace%20Spec.doc // // History: // 12/01/2002: magedz: Created - based on architectural discussions and design // by axelk, rruiz, magedz // 04/01/2003: rruiz: Updated file as part of integrating into working system // 07/21/2003: rruiz: Ported to WCP tree. // 08/18/2003: rruiz: Updated to Anchoring Namespace spec. // 05/07/2004: ssimova: Removed Xpath expressions // 01/07/2004: rruiz: Removed LocatorManager property. // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Windows; using System.Windows.Annotations; using System.Windows.Media; using MS.Utility; using System.Xml; namespace MS.Internal.Annotations.Anchoring { ////// SelectionProcessor is an abstract class defining the API for /// creating and processing selections in the annotation framework. /// SelectionProcessors are responsible for creating locator parts representing /// a selection and for creating selections based on a locator part. /// internal abstract class SelectionProcessor { //----------------------------------------------------- // // Constructors // //----------------------------------------------------- #region Constructors ////// Creates an instance of SelectionProcessor. /// protected SelectionProcessor() { } #endregion Constructors //------------------------------------------------------ // // Public Methods // //----------------------------------------------------- #region Public Methods ////// Merges the two selections into one, if possible. /// /// selection to merge /// other selection to merge /// new selection that contains the data from both /// selection1 and selection2 ///true if the selections were merged, false otherwise /// ///selection1 or selection2 are /// null public abstract bool MergeSelections(Object selection1, Object selection2, out Object newSelection); ////// Gets the tree elements spanned by the selection. /// /// the selection to examine ///a list of elements spanned by the selection; never returns /// null ///selection is null ///selection is of wrong type public abstract IListGetSelectedNodes(Object selection); /// /// Gets the parent element of this selection. /// /// the selection to examine ///the parent element of the selection; can be null ///selection is null ///selection is of wrong type public abstract UIElement GetParent(Object selection); ////// Gets the anchor point for the selection /// /// the selection to examine ///the anchor point of the selection; can be null ///selection is null ///selection is of wrong type public abstract Point GetAnchorPoint(Object selection); ////// Creates one or more locator parts representing the portion /// of 'startNode' spanned by 'selection'. /// /// the selection that is being processed /// the node the locator parts should be in the /// context of ///one or more locator parts representing the portion of 'startNode' spanned /// by 'selection' ///startNode or selection is null ///startNode is not a DependencyObject or /// selection is of the wrong type public abstract IListGenerateLocatorParts(Object selection, DependencyObject startNode); /// /// Creates a selection object spanning the portion of 'startNode' /// specified by 'locatorPart'. /// /// locator part specifying data to be spanned /// the node to be spanned by the created /// selection /// describes the level of resolution reached when resolving the locator part ///a selection spanning the portion of 'startNode' specified by /// 'locatorPart' ///locatorPart or startNode are /// null ///locatorPart is of the incorrect type public abstract Object ResolveLocatorPart(ContentLocatorPart locatorPart, DependencyObject startNode, out AttachmentLevel attachmentLevel); ////// Returns a list of XmlQualifiedNames representing the /// the locator parts this processor can resolve/generate. /// public abstract XmlQualifiedName[] GetLocatorPartTypes(); #endregion Public Methods //------------------------------------------------------ // // Public Operators // //------------------------------------------------------ //----------------------------------------------------- // // Public Properties // //------------------------------------------------------ //----------------------------------------------------- // // Public Events // //----------------------------------------------------- } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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