TextClipboardData.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 / MS / Internal / Ink / TextClipboardData.cs / 1305600 / TextClipboardData.cs
                        

                        
                            //---------------------------------------------------------------------------- 
//
// File: TextClipboardData.cs
//
// Description: 
//      A base class which can copy a unicode text to the IDataObject.
//      It also can get the unicode text from the IDataObject and create a corresponding textbox. 
// 
// Features:
// 
// History:
//  11/17/2004 waynezen:       Created
//
// Copyright (C) 2001 by Microsoft Corporation.  All rights reserved. 
//
//--------------------------------------------------------------------------- 
 
using System;
using System.Collections; 
using System.Collections.Generic;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Markup; 
using System.Text;
 
namespace MS.Internal.Ink 
{
    internal class TextClipboardData : ElementsClipboardData 
    {
        //-------------------------------------------------------------------------------
        //
        // Constructors 
        //
        //------------------------------------------------------------------------------- 
 
        #region Constructors
 
        // The default constructor
        internal TextClipboardData() : this(null) {}

        // The constructor with a string as argument 
        internal TextClipboardData(string text)
        { 
            _text = text; 
        }
 
        #endregion Constructors

        // Checks if the data can be pasted.
        internal override bool CanPaste(IDataObject dataObject) 
        {
            return ( dataObject.GetDataPresent(DataFormats.UnicodeText, false) 
                        || dataObject.GetDataPresent(DataFormats.Text, false) 
                        || dataObject.GetDataPresent(DataFormats.OemText, false) );
        } 

        //--------------------------------------------------------------------------------
        //
        // Protected Methods 
        //
        //------------------------------------------------------------------------------- 
 
        #region Protected Methods
 
        // Checks if the data can be copied.
        protected override bool CanCopy()
        {
            return !string.IsNullOrEmpty(_text); 
        }
 
        // Copy the text to the IDataObject 
        protected override void DoCopy(IDataObject dataObject)
        { 
            // Put the text to the clipboard
            dataObject.SetData(DataFormats.UnicodeText, _text, true);
        }
 
        // Retrieves the text from the IDataObject instance.
        // Then create a textbox with the text data. 
        protected override void DoPaste(IDataObject dataObject) 
        {
            ElementList = new List(); 

            // Get the string from the data object.
            string text = dataObject.GetData(DataFormats.UnicodeText, true) as string;
 
            if ( String.IsNullOrEmpty(text) )
            { 
                // OemText can be retrieved as CF_TEXT. 
                text = dataObject.GetData(DataFormats.Text, true) as string;
            } 

            if ( !String.IsNullOrEmpty(text) )
            {
                // Now, create a text box and set the text to it. 
                TextBox textBox = new TextBox();
 
                textBox.Text = text; 
                textBox.TextWrapping = TextWrapping.Wrap;
 
                // Add the textbox to the internal array list.
                ElementList.Add(textBox);
            }
 
        }
 
        #endregion Protected Methods 

        //-------------------------------------------------------------------------------- 
        //
        // Private Fields
        //
        //-------------------------------------------------------------------------------- 

        #region Private Fields 
 
        private string      _text;
 
        #endregion Private Fields
    }
}

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

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