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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