/*
* @(#)ClipboardTest.java
*
* Copyright (c) 2009 Werner Randelshofer, Immensee, Switzerland.
* All rights reserved.
*
* You may not use, copy or modify this file, except in compliance with the
* license agreement you entered into with Werner Randelshofer.
* For details see accompanying license terms.
*/
package test;
import ch.randelshofer.quaqua.osx.OSXClipboardTransferable;
import ch.randelshofer.quaqua.osx.OSXImageIO;
import ch.randelshofer.quaqua.util.Fonts;
import java.awt.Component;
import java.awt.Font;
import java.awt.Image;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.Reader;
import java.io.StringWriter;
import java.net.URLDecoder;
import java.nio.ByteBuffer;
import javax.swing.DefaultListCellRenderer;
import javax.swing.DefaultListModel;
import javax.swing.ImageIcon;
import javax.swing.JComponent;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JTextArea;
import javax.swing.JTextPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.text.rtf.RTFEditorKit;
/**
* ClipboardTest.
*
* @author Werner Randelshofer
* @version $Id: ClipboardTest.java 361 2010-11-21 11:19:20Z wrandelshofer $
*/
public class ClipboardTest extends javax.swing.JPanel {
private Transferable transferable;
private static class FlavorRenderer extends DefaultListCellRenderer {
public Component getListCellRendererComponent(
JList list,
Object value,
int index,
boolean isSelected,
boolean cellHasFocus) {
String stringValue = ((DataFlavor) value).getHumanPresentableName();
return super.getListCellRendererComponent(list, stringValue, index, isSelected, cellHasFocus);
}
}
/** Creates new form ClipboardTest */
public ClipboardTest() {
initComponents();
Font f = Fonts.getSmallDialogFont();
dataFlavorsLabel.setFont(f);
dataFlavorsList.setFont(f);
transferDataLabel.setFont(f);
dataFlavorsList.setCellRenderer(new FlavorRenderer());
dataFlavorsList.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent e) {
if (!e.getValueIsAdjusting()) {
updateTransferData();
}
}
});
readNativeClipboardButton.setEnabled(OSXClipboardTransferable.isNativeCodeAvailable());
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
// <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
private void initComponents() {
splitPane = new javax.swing.JSplitPane();
dataFlavorPanel = new javax.swing.JPanel();
dataFlavorsLabel = new javax.swing.JLabel();
dataFlavorsScrollPane = new javax.swing.JScrollPane();
dataFlavorsList = new javax.swing.JList();
transferDataPanel = new javax.swing.JPanel();
transferDataLabel = new javax.swing.JLabel();
transferDataScrollPane = new javax.swing.JScrollPane();
buttonPanel = new javax.swing.JPanel();
readNativeClipboardButton = new javax.swing.JButton();
readJavaClipboardButton = new javax.swing.JButton();
FormListener formListener = new FormListener();
setLayout(new java.awt.BorderLayout());
dataFlavorPanel.setLayout(new java.awt.BorderLayout());
dataFlavorsLabel.setText("Data Flavors");
dataFlavorPanel.add(dataFlavorsLabel, java.awt.BorderLayout.NORTH);
dataFlavorsScrollPane.setViewportView(dataFlavorsList);
dataFlavorPanel.add(dataFlavorsScrollPane, java.awt.BorderLayout.CENTER);
splitPane.setLeftComponent(dataFlavorPanel);
transferDataPanel.setLayout(new java.awt.BorderLayout());
transferDataLabel.setText("Transfer Data");
transferDataPanel.add(transferDataLabel, java.awt.BorderLayout.NORTH);
transferDataPanel.add(transferDataScrollPane, java.awt.BorderLayout.CENTER);
splitPane.setRightComponent(transferDataPanel);
add(splitPane, java.awt.BorderLayout.CENTER);
buttonPanel.setLayout(new java.awt.FlowLayout(java.awt.FlowLayout.LEFT, 0, 5));
readNativeClipboardButton.setText("Read Native Clipboard");
readNativeClipboardButton.addActionListener(formListener);
buttonPanel.add(readNativeClipboardButton);
readJavaClipboardButton.setText("Read Java Clipboard");
readJavaClipboardButton.addActionListener(formListener);
buttonPanel.add(readJavaClipboardButton);
add(buttonPanel, java.awt.BorderLayout.SOUTH);
}
// Code for dispatching events from components to event handlers.
private class FormListener implements java.awt.event.ActionListener {
FormListener() {}
public void actionPerformed(java.awt.event.ActionEvent evt) {
if (evt.getSource() == readNativeClipboardButton) {
ClipboardTest.this.readNativeClipboard(evt);
}
else if (evt.getSource() == readJavaClipboardButton) {
ClipboardTest.this.readJavaClipboard(evt);
}
}
}// </editor-fold>//GEN-END:initComponents
private void readNativeClipboard(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_readNativeClipboard
transferable = new OSXClipboardTransferable();
updateDataFlavors();
}//GEN-LAST:event_readNativeClipboard
private void readJavaClipboard(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_readJavaClipboard
transferable = getToolkit().getSystemClipboard().getContents(this);
updateDataFlavors();
}//GEN-LAST:event_readJavaClipboard
private void updateDataFlavors() {
DataFlavor[] flavors = (transferable == null) ? new DataFlavor[0] : transferable.getTransferDataFlavors();
DefaultListModel lm = new DefaultListModel();
for (int i = 0; i < flavors.length; i++) {
lm.addElement(flavors[i]);
}
dataFlavorsList.setModel(lm);
updateTransferData();
}
private void updateTransferData() {
// Get rid of view to ensure that it can be garbage collected
transferDataScrollPane.setViewportView(null);
// Create new view
JComponent view = null;
if (dataFlavorsList.getSelectedIndex() != -1 && transferable != null) {
try {
DataFlavor flavor = (DataFlavor) dataFlavorsList.getSelectedValue();
// Get OSX Pasteboard Type
String osxType = null;
if (flavor.match(new DataFlavor("application/octet-stream"))) {
osxType = flavor.getParameter("type");
}
osxType = (osxType == null) ? "" : URLDecoder.decode(osxType, "UTF-8");
// Get transfer data
Object data = transferable.getTransferData(flavor);
if (data == null) {
// Handle null case
view = new JLabel("null");
} else if ((data instanceof byte[]) || (data instanceof InputStream) || (data instanceof ByteBuffer)) {
byte[] bytes;
// For simplicity convert input stream to byte array.
if (data instanceof InputStream) {
InputStream in = (InputStream) data;
ByteArrayOutputStream tmp = new ByteArrayOutputStream();
byte[] buf = new byte[512];
int count;
while (-1 != (count = in.read(buf, 0, buf.length))) {
tmp.write(buf, 0, count);
}
bytes = tmp.toByteArray();
} else if (data instanceof ByteBuffer) {
ByteBuffer bb = (ByteBuffer) data;
bytes = new byte[bb.remaining()];
bb.get(bytes);
} else {
bytes = (byte[]) data;
}
if (osxType.equals("public.utf8-plain-text") ||
osxType.equals("NSStringPboardType")) {
String str = new String(bytes, "UTF-8");
view = new JTextArea(str);
} else if (osxType.equals("public.utf16-external-plain-text") ||
osxType.equals("NSStringPboardType")) {
String str = new String(bytes, "UTF-16");
view = new JTextArea(str);
} else if (osxType.equals("NeXT plain ascii pasteboard type")) {
String str = new String(bytes, "ASCII");
view = new JTextArea(str);
} else if (flavor.match(new DataFlavor("text/rtf"))) {
JTextPane tp = new JTextPane();
RTFEditorKit kit = new RTFEditorKit();
tp.setEditorKit(kit);
kit.read(new ByteArrayInputStream(bytes),tp.getDocument(),0);
view = tp;
} else if (flavor.match(new DataFlavor("text/plain"))||
(flavor.getPrimaryType()+"/"+flavor.getSubType()).equals("text/plain")) {
String charset = flavor.getParameter("charset");
String str = new String(bytes, charset);
JTextArea ta = new JTextArea(str);
view = ta;
} else if (flavor.match(new DataFlavor("image/x-pict"))) {
// Add 512 zero-bytes to beginning of PICT data
byte[] b = bytes;
byte[] tmp = new byte[b.length + 512];
System.arraycopy(b, 0, tmp, 512, b.length);
b = tmp;
// Try to create an image from the byte array
BufferedImage img = null;
img = toImage(b);
if (img != null) {
view = new JLabel(new ImageIcon(img));
} else {
// Create a hex dump of the byte array
view = new JTextArea(toHexDump(bytes));
view.setFont(Fonts.getMonospaceFont());
}
} else {
// Try to create an image from the byte array
BufferedImage img = null;
img = toImage(bytes);
if (img != null) {
view = new JLabel(new ImageIcon(img));
} else {
// Create a hex dump of the byte array
view = new JTextArea(toHexDump(bytes));
view.setFont(Fonts.getMonospaceFont());
}
}
} else if (data instanceof String) {
view = new JTextArea((String) data);
} else if (data instanceof char[]) {
view = new JTextArea(new String((char[]) data));
} else if (data instanceof Reader) {
// Create a string from the reader
StringBuffer sb = new StringBuffer();
Reader r = (Reader) data;
char[] cbuf = new char[512];
for (int count = 0; count != -1; count = r.read(cbuf, 0, cbuf.length)) {
sb.append(cbuf, 0, count);
}
view = new JTextArea(sb.toString());
} else if (data instanceof Image) {
view = new JLabel(new ImageIcon((Image) data));
} else {
view = new JTextArea(data.toString());
}
} catch (Throwable ex) {
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
ex.printStackTrace(pw);
pw.close();
view = new JTextArea(sw.toString());
ex.printStackTrace();
}
transferDataScrollPane.setViewportView(view);
}
}
private BufferedImage toImage(byte[] b) {
try {
return OSXImageIO.read(b);
} catch (IOException ex) {
// ex.printStackTrace();
return null;
}
}
private String toHexDump(byte[] b) {
StringBuffer sb = new StringBuffer();
for (int line = 0; line < b.length; line += 16) {
String hex = Integer.toHexString(line);
for (int i = hex.length(); i < 8; i++) {
sb.append('0');
}
sb.append(hex);
sb.append(':');
for (int column = 0; column < 16; column++) {
if (column % 4 == 0) {
sb.append(' ');
}
if (column + line >= b.length) {
sb.append(" ");
} else {
hex = Integer.toHexString(b[column + line] & 0xff);
for (int i = hex.length(); i < 2; i++) {
sb.append('0');
}
sb.append(hex);
}
}
sb.append(' ');
for (int column = 0; column < 16 && column + line < b.length; column++) {
if (column % 4 == 0) {
sb.append(' ');
}
char chr = (char) (b[column + line] & 0xff);
if (chr >= ' ' && chr <= '~') {
sb.append(chr);
} else {
sb.append('.');
}
}
sb.append('\n');
}
return sb.toString();
}
// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JPanel buttonPanel;
private javax.swing.JPanel dataFlavorPanel;
private javax.swing.JLabel dataFlavorsLabel;
private javax.swing.JList dataFlavorsList;
private javax.swing.JScrollPane dataFlavorsScrollPane;
private javax.swing.JButton readJavaClipboardButton;
private javax.swing.JButton readNativeClipboardButton;
private javax.swing.JSplitPane splitPane;
private javax.swing.JLabel transferDataLabel;
private javax.swing.JPanel transferDataPanel;
private javax.swing.JScrollPane transferDataScrollPane;
// End of variables declaration//GEN-END:variables
}