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*
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* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* - 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.
*
* - Neither the name of Oracle or the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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package javademo.swing.text.TextSamplerDemo;
/*
* TextSamplerDemo.java requires the following files:
* TextSamplerDemoHelp.html (which references images/dukeWaveRed.gif)
* images/Pig.gif
* images/sound.gif
*/
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JEditorPane;
import javax.swing.JFormattedTextField;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JScrollPane;
import javax.swing.JSplitPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.JTextPane;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.text.BadLocationException;
import javax.swing.text.Style;
import javax.swing.text.StyleConstants;
import javax.swing.text.StyleContext;
import javax.swing.text.StyledDocument;
public class TextSamplerDemo extends JPanel implements ActionListener
{
private static final long serialVersionUID = 1L;
private String newline = "\n";
protected static final String textFieldString = "JTextField";
protected static final String passwordFieldString = "JPasswordField";
protected static final String ftfString = "JFormattedTextField";
protected static final String buttonString = "JButton";
protected JLabel actionLabel;
public TextSamplerDemo()
{
setLayout(new BorderLayout());
// Create a regular text field.
JTextField textField = new JTextField(10);
textField.setActionCommand(textFieldString);
textField.addActionListener(this);
// Create a password field.
JPasswordField passwordField = new JPasswordField(10);
passwordField.setActionCommand(passwordFieldString);
passwordField.addActionListener(this);
// Create a formatted text field.
JFormattedTextField ftf = new JFormattedTextField(java.util.Calendar.getInstance().getTime());
ftf.setActionCommand(textFieldString);
ftf.addActionListener(this);
// Create some labels for the fields.
JLabel textFieldLabel = new JLabel(textFieldString + ": ");
textFieldLabel.setLabelFor(textField);
JLabel passwordFieldLabel = new JLabel(passwordFieldString + ": ");
passwordFieldLabel.setLabelFor(passwordField);
JLabel ftfLabel = new JLabel(ftfString + ": ");
ftfLabel.setLabelFor(ftf);
// Create a label to put messages during an action event.
actionLabel = new JLabel("Type text in a field and press Enter.");
actionLabel.setBorder(BorderFactory.createEmptyBorder(10, 0, 0, 0));
// Lay out the text controls and the labels.
JPanel textControlsPane = new JPanel();
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
textControlsPane.setLayout(gridbag);
JLabel[] labels = { textFieldLabel, passwordFieldLabel, ftfLabel };
JTextField[] textFields = { textField, passwordField, ftf };
addLabelTextRows(labels, textFields, gridbag, textControlsPane);
c.gridwidth = GridBagConstraints.REMAINDER; // last
c.anchor = GridBagConstraints.WEST;
c.weightx = 1.0;
textControlsPane.add(actionLabel, c);
textControlsPane.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Text Fields"),
BorderFactory.createEmptyBorder(5, 5, 5, 5)));
// Create a text area.
JTextArea textArea = new JTextArea("This is an editable JTextArea. "
+ "A text area is a \"plain\" text component, " + "which means that although it can display text "
+ "in any font, all of the text is in the same font.");
textArea.setFont(new Font("Serif", Font.ITALIC, 16));
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);
JScrollPane areaScrollPane = new JScrollPane(textArea);
areaScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
areaScrollPane.setPreferredSize(new Dimension(250, 250));
areaScrollPane.setBorder(BorderFactory.createCompoundBorder(
BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Plain Text"),
BorderFactory.createEmptyBorder(5, 5, 5, 5)), areaScrollPane.getBorder()));
// Create an editor pane.
JEditorPane editorPane = createEditorPane();
JScrollPane editorScrollPane = new JScrollPane(editorPane);
editorScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
editorScrollPane.setPreferredSize(new Dimension(250, 145));
editorScrollPane.setMinimumSize(new Dimension(10, 10));
// Create a text pane.
JTextPane textPane = createTextPane();
JScrollPane paneScrollPane = new JScrollPane(textPane);
paneScrollPane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
paneScrollPane.setPreferredSize(new Dimension(250, 155));
paneScrollPane.setMinimumSize(new Dimension(10, 10));
// Put the editor pane and the text pane in a split pane.
JSplitPane splitPane = new JSplitPane(JSplitPane.VERTICAL_SPLIT, editorScrollPane, paneScrollPane);
splitPane.setOneTouchExpandable(true);
splitPane.setResizeWeight(0.5);
JPanel rightPane = new JPanel(new GridLayout(1, 0));
rightPane.add(splitPane);
rightPane.setBorder(BorderFactory.createCompoundBorder(BorderFactory.createTitledBorder("Styled Text"),
BorderFactory.createEmptyBorder(5, 5, 5, 5)));
// Put everything together.
JPanel leftPane = new JPanel(new BorderLayout());
leftPane.add(textControlsPane, BorderLayout.PAGE_START);
leftPane.add(areaScrollPane, BorderLayout.CENTER);
add(leftPane, BorderLayout.LINE_START);
add(rightPane, BorderLayout.LINE_END);
}
private void addLabelTextRows(JLabel[] labels, JTextField[] textFields, GridBagLayout gridbag, Container container)
{
GridBagConstraints c = new GridBagConstraints();
c.anchor = GridBagConstraints.EAST;
int numLabels = labels.length;
for (int i = 0; i < numLabels; i++)
{
c.gridwidth = GridBagConstraints.RELATIVE; // next-to-last
c.fill = GridBagConstraints.NONE; // reset to default
c.weightx = 0.0; // reset to default
container.add(labels[i], c);
c.gridwidth = GridBagConstraints.REMAINDER; // end row
c.fill = GridBagConstraints.HORIZONTAL;
c.weightx = 1.0;
container.add(textFields[i], c);
}
}
public void actionPerformed(ActionEvent e)
{
String prefix = "You typed \"";
if (textFieldString.equals(e.getActionCommand()))
{
JTextField source = (JTextField)e.getSource();
actionLabel.setText(prefix + source.getText() + "\"");
}
else if (passwordFieldString.equals(e.getActionCommand()))
{
JPasswordField source = (JPasswordField)e.getSource();
actionLabel.setText(prefix + new String(source.getPassword()) + "\"");
}
else if (buttonString.equals(e.getActionCommand()))
{
Toolkit.getDefaultToolkit().beep();
}
}
private JEditorPane createEditorPane()
{
JEditorPane editorPane = new JEditorPane();
editorPane.setEditable(false);
java.net.URL helpURL = TextSamplerDemo.class.getResource("TextSamplerDemoHelp.html");
if (helpURL != null)
{
try
{
editorPane.setPage(helpURL);
}
catch (IOException e)
{
System.err.println("Attempted to read a bad URL: " + helpURL);
}
}
else
{
System.err.println("Couldn't find file: TextSampleDemoHelp.html");
}
return editorPane;
}
private JTextPane createTextPane()
{
String[] initString = {
"This is an editable JTextPane, ", // regular
"another ", // italic
"styled ", // bold
"text ", // small
"component, ", // large
"which supports embedded components..." + newline,// regular
" " + newline, // button
"...and embedded icons..." + newline, // regular
" ", // icon
newline + "JTextPane is a subclass of JEditorPane that "
+ "uses a StyledEditorKit and StyledDocument, and provides "
+ "cover methods for interacting with those objects." };
String[] initStyles = { "regular", "italic", "bold", "small", "large", "regular", "button", "regular", "icon",
"regular" };
JTextPane textPane = new JTextPane();
StyledDocument doc = textPane.getStyledDocument();
addStylesToDocument(doc);
try
{
for (int i = 0; i < initString.length; i++)
{
doc.insertString(doc.getLength(), initString[i], doc.getStyle(initStyles[i]));
}
}
catch (BadLocationException ble)
{
System.err.println("Couldn't insert initial text into text pane.");
}
return textPane;
}
protected void addStylesToDocument(StyledDocument doc)
{
// Initialize some styles.
Style def = StyleContext.getDefaultStyleContext().getStyle(StyleContext.DEFAULT_STYLE);
Style regular = doc.addStyle("regular", def);
StyleConstants.setFontFamily(def, "SansSerif");
Style s = doc.addStyle("italic", regular);
StyleConstants.setItalic(s, true);
s = doc.addStyle("bold", regular);
StyleConstants.setBold(s, true);
s = doc.addStyle("small", regular);
StyleConstants.setFontSize(s, 10);
s = doc.addStyle("large", regular);
StyleConstants.setFontSize(s, 16);
s = doc.addStyle("icon", regular);
StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
ImageIcon pigIcon = createImageIcon("images/Pig.gif", "a cute pig");
if (pigIcon != null)
{
StyleConstants.setIcon(s, pigIcon);
}
s = doc.addStyle("button", regular);
StyleConstants.setAlignment(s, StyleConstants.ALIGN_CENTER);
ImageIcon soundIcon = createImageIcon("images/sound.gif", "sound icon");
JButton button = new JButton();
if (soundIcon != null)
{
button.setIcon(soundIcon);
}
else
{
button.setText("BEEP");
}
button.setCursor(Cursor.getDefaultCursor());
button.setMargin(new Insets(0, 0, 0, 0));
button.setActionCommand(buttonString);
button.addActionListener(this);
StyleConstants.setComponent(s, button);
}
/** Returns an ImageIcon, or null if the path was invalid. */
protected static ImageIcon createImageIcon(String path, String description)
{
java.net.URL imgURL = TextSamplerDemo.class.getResource(path);
if (imgURL != null)
{
return new ImageIcon(imgURL, description);
}
else
{
System.err.println("Couldn't find file: " + path);
return null;
}
}
/**
* Create the GUI and show it. For thread safety,
* this method should be invoked from the
* event dispatch thread.
*/
private static void createAndShowGUI()
{
// Create and set up the window.
JFrame frame = new JFrame("TextSamplerDemo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// Add content to the window.
frame.add(new TextSamplerDemo());
// Display the window.
frame.pack();
frame.setVisible(true);
}
public static void main(String[] args)
{
// Schedule a job for the event dispatching thread:
// creating and showing this application's GUI.
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
// Turn off metal's use of bold fonts
UIManager.put("swing.boldMetal", Boolean.FALSE);
createAndShowGUI();
}
});
}
}