RichTextBoxAutomationPeer.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / Automation / Peers / RichTextBoxAutomationPeer.cs / 1305600 / RichTextBoxAutomationPeer.cs

                            using System; 
using System.Collections.Generic;
using System.Runtime.InteropServices;
using System.Security;
using System.Text; 
using System.Windows;
using System.Windows.Automation.Provider; 
using System.Windows.Controls; 
using System.Windows.Documents;
using System.Windows.Interop; 
using System.Windows.Media;

using MS.Internal.Documents;
using MS.Internal; 
using MS.Internal.Automation;
using MS.Win32; 
 
namespace System.Windows.Automation.Peers
{ 
    ///
    public class RichTextBoxAutomationPeer : TextAutomationPeer
    {
        /// 
        public RichTextBoxAutomationPeer(RichTextBox owner): base(owner)
        { 
            _textPattern = new TextAdaptor(this, owner.TextContainer); 
        }
 
        ///
        override protected string GetClassNameCore()
        {
            return "RichTextBox"; 
        }
 
        /// 
        override protected AutomationControlType GetAutomationControlTypeCore()
        { 
            return AutomationControlType.Document;
        }

        /// 
        override public object GetPattern(PatternInterface patternInterface)
        { 
            object returnValue = null; 
            RichTextBox owner = (RichTextBox)Owner;
 
            if (patternInterface == PatternInterface.Text)
            {
                if (_textPattern == null)
                    _textPattern = new TextAdaptor(this, owner.TextContainer); 

                return _textPattern; 
            } 

            else 
            {
                if (patternInterface == PatternInterface.Scroll)
                {
                    if (owner.ScrollViewer != null) 
                    {
                        returnValue = owner.ScrollViewer.CreateAutomationPeer(); 
                        ((AutomationPeer)returnValue).EventsSource = this; 
                    }
                } 
                else
                {
                    returnValue = base.GetPattern(patternInterface);
                } 

            } 
 
            return returnValue;
        } 

        /// 
        /// 
        ///  
        protected override List GetChildrenCore()
        { 
            RichTextBox owner = (RichTextBox)Owner; 
            return TextContainerHelper.GetAutomationPeersFromRange(owner.TextContainer.Start, owner.TextContainer.End, null);
        } 

        /// 
        /// Gets collection of AutomationPeers for given text range.
        ///  
        internal override List GetAutomationPeersFromRange(ITextPointer start, ITextPointer end)
        { 
            // Force children connection to automation tree. 
            GetChildren();
 
            RichTextBox owner = (RichTextBox)Owner;
            return TextContainerHelper.GetAutomationPeersFromRange(start, end, owner.TextContainer.Start);
        }
 
        private TextAdaptor _textPattern;
    } 
} 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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