StatusBarAutomationPeer.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / System / Windows / Automation / Peers / StatusBarAutomationPeer.cs / 1 / StatusBarAutomationPeer.cs
                        

                        
                            using System; 
using System.Collections;
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.Controls.Primitives; 
using System.Windows.Interop;
using System.Windows.Media;

using MS.Internal; 
using MS.Win32;
 
namespace System.Windows.Automation.Peers 
{
 
    ///
    public class StatusBarAutomationPeer : FrameworkElementAutomationPeer
    {
        /// 
        public StatusBarAutomationPeer(StatusBar owner): base(owner)
        {} 
 
        ///
        protected override string GetClassNameCore() 
        {
            return "StatusBar";
        }
 
        ///
        protected override AutomationControlType GetAutomationControlTypeCore() 
        { 
            return AutomationControlType.StatusBar;
        } 

        ///
        protected override List GetChildrenCore()
        { 
            List list = new List();
            ItemsControl itemscontrol = Owner as ItemsControl; 
            if (itemscontrol != null) 
            {
                foreach (object obj in itemscontrol.Items) 
                {
                    if (obj is Separator)
                    {
                        Separator separator = obj as Separator; 
                        list.Add(UIElementAutomationPeer.CreatePeerForElement(separator));
                    } 
                    else 
                    {
                        StatusBarItem item = itemscontrol.ItemContainerGenerator.ContainerFromItem(obj) as StatusBarItem; 

                        if (item != null)
                        {
                            //If the item is a string or TextBlock or StatusBarItem 
                            //StatusBarItemAutomationPeer will be created to show the text
                            //Or we'll use the control's automation peer 
                            if (obj is string || obj is TextBlock 
                                || (obj is StatusBarItem && ((StatusBarItem)obj).Content is string))
                            { 
                                list.Add(UIElementAutomationPeer.CreatePeerForElement(item));
                            }
                            else
                            { 
                                List childList = GetChildrenAutomationPeer(item);
                                if (childList != null) 
                                { 
                                    foreach (AutomationPeer ap in childList)
                                    { 
                                        list.Add(ap);
                                    }
                                }
                            } 
                        }
                    } 
                } 
            }
 
            return list;
        }

 
        /// 
        /// Get the children of the parent which has automation peer 
        ///  
        private List GetChildrenAutomationPeer(Visual parent)
        { 
            Invariant.Assert(parent != null);

            List children = null;
 
            iterate(parent,
                    (IteratorCallback)delegate(AutomationPeer peer) 
                    { 
                        if (children == null)
                            children = new List(); 

                        children.Add(peer);
                        return (false);
                    }); 

            return children; 
        } 

        private delegate bool IteratorCallback(AutomationPeer peer); 

        //
        private static bool iterate(Visual parent, IteratorCallback callback)
        { 
            bool done = false;
 
            AutomationPeer peer = null; 

            int count = parent.InternalVisualChildrenCount; 
            for (int i = 0; i < count && !done; i++)
            {
                Visual child = parent.InternalGetVisualChild(i);
                if (child != null 
                    && child.CheckFlagsAnd(VisualFlags.IsUIElement)
                    && (peer = CreatePeerForElement((UIElement)child)) != null) 
                { 
                    done = callback(peer);
                } 
                else
                {
                    done = iterate(child, callback);
                } 
            }
 
            return (done); 
        }
    } 
}


 

// 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
This book is available now!
Buy at Amazon US or
Buy at Amazon UK