/* * Copyright (c) 1995 - 2008 Sun Microsystems, Inc.  All rights reserved. * * Redistribution and use in source and binary forms, with or without * 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 Sun Microsystems nor 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, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER 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. */ package components;/* * TextSamplerDemo.java requires the following files: *   TextSamplerDemoHelp.html (which references images/dukeWaveRed.gif) *   images/Pig.gif *   images/sound.gif */import javax.swing.*;import javax.swing.text.*;import java.awt.*;              //for layout managers and moreimport java.awt.event.*;        //for action eventsimport java.net.URL;import java.io.IOException;public class TextSamplerDemo extends JPanel                             implements ActionListener {    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();            }        });    }}