Taken from the Sun documentation on Clipboard API : Clip Board « Development Class « Java






Taken from the Sun documentation on Clipboard API

Taken from the Sun documentation on Clipboard API
 

/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.com/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 * Java, the Duke mascot, and all variants of Sun's Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun's, and James Gosling's,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */

import java.awt.Button;
import java.awt.Frame;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.TextArea;
import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.ClipboardOwner;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.StringSelection;
import java.awt.datatransfer.Transferable;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

/** Taken from the Sun documentation on Clipboard API */
public class ClipboardTest extends Frame implements ClipboardOwner,
    ActionListener {

  TextArea srcText, dstText;

  Button copyButton, pasteButton;

  Clipboard clipboard = getToolkit().getSystemClipboard();

  public ClipboardTest() {
    super("Clipboard Test");
    GridBagLayout gridbag = new GridBagLayout();
    GridBagConstraints c = new GridBagConstraints();
    setLayout(gridbag);

    srcText = new TextArea(8, 32);
    c.gridwidth = 2;
    c.anchor = GridBagConstraints.CENTER;
    gridbag.setConstraints(srcText, c);
    add(srcText);

    copyButton = new Button("Copy Above");
    copyButton.setActionCommand("copy");
    copyButton.addActionListener(this);
    c.gridy = 1;
    c.gridwidth = 1;
    gridbag.setConstraints(copyButton, c);
    add(copyButton);

    pasteButton = new Button("Paste Below");
    pasteButton.setActionCommand("paste");
    pasteButton.addActionListener(this);
    pasteButton.setEnabled(false);
    c.gridx = 1;
    gridbag.setConstraints(pasteButton, c);
    add(pasteButton);

    dstText = new TextArea(8, 32);
    c.gridx = 0;
    c.gridy = 2;
    c.gridwidth = 2;
    gridbag.setConstraints(dstText, c);
    add(dstText);

    pack();
  }

  public void actionPerformed(ActionEvent evt) {
    String cmd = evt.getActionCommand();

    if (cmd.equals("copy")) {
      // Implement Copy operation
      String srcData = srcText.getText();
      if (srcData != null) {
        StringSelection contents = new StringSelection(srcData);
        clipboard.setContents(contents, this);
        pasteButton.setEnabled(true);
      }
    } else if (cmd.equals("paste")) {
      // Implement Paste operation
      Transferable content = clipboard.getContents(this);
      if (content != null) {
        try {
          String dstData = (String) content
              .getTransferData(DataFlavor.stringFlavor);
          dstText.append(dstData);
        } catch (Exception e) {
          System.out
              .println("Couldn't get contents in format: "
                  + DataFlavor.stringFlavor
                      .getHumanPresentableName());
        }
      }
    }
  }

  public void lostOwnership(Clipboard clipboard, Transferable contents) {
    System.out.println("Clipboard contents replaced");
  }

  public static void main(String[] args) {
    ClipboardTest test = new ClipboardTest();
    test.setVisible(true);
  }
}

           
         
  








Related examples in the same category

1.Using the clipboardUsing the clipboard
2.Communicating with the System ClipboardCommunicating with the System Clipboard
3.Sending Image Objects through the ClipboardSending Image Objects through the Clipboard
4.Placing text on the computer clipboard
5.Getting data from the computer clipboard
6.Get string value from clipboard
7.Write a string to the system clipboard
8.Getting and Setting an Image on the System Clipboard
9.Setting an image on the clipboard with a custom Transferable object to hold the image
10.Determining When an Item Is No Longer on the System Clipboard
11.implements ClipboardOwner
12.Copying data to system clipboard