/*
* @(#)TextBoundDemo.java 1.1 96/11/23
*
* (C) Copyright Taligent, Inc. 1996 - All Rights Reserved
* (C) Copyright IBM Corp. 1996 - All Rights Reserved
*
* Portions copyright (c) 1996 Sun Microsystems, Inc. All Rights Reserved.
*
* The original version of this source code and documentation is copyrighted
* and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These
* materials are provided under terms of a License Agreement between Taligent
* and Sun. This technology is protected by multiple US and International
* patents. This notice and attribution to Taligent may not be removed.
* Taligent is a registered trademark of Taligent, Inc.
*
* Permission to use, copy, modify, and distribute this software
* and its documentation for NON-COMMERCIAL purposes and without
* fee is hereby granted provided that this copyright notice
* appears in all copies. Please refer to the file "copyright.html"
* for further important copyright and licensing information.
*
* SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF
* THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR
* ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
* DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
*
*/
import java.applet.Applet;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.text.*;
public class TextBoundDemo extends DemoApplet
{
public static void main(String argv[]) {
DemoApplet.showDemo(new TextBoundFrame(null));
}
public Frame createDemoFrame(DemoApplet applet) {
return new TextBoundFrame(applet);
}
}
class TextBoundFrame extends Frame implements WindowListener, ItemListener , KeyListener
{
private static final String creditString =
"v1.1a9, Demo";
private static final String copyrightString =
"";
private static final String copyrightString2 =
"";
private static final int FIELD_COLUMNS = 45;
private static final Font choiceFont = null;
private static final boolean DEBUG = false;
private DemoApplet applet;
final String right = "-->";
final String left = "<--";
private BreakIterator enum;
TextArea text;
Choice bound;
public TextBoundFrame(DemoApplet applet)
{
this.applet = applet;
addWindowListener(this);
init();
start();
}
public void run()
{
}
public int getSelectionStart()
{
return text.getSelectionStart() & 0x7FFF;
}
public int getSelectionEnd()
{
return text.getSelectionEnd() & 0x7FFF;
}
public synchronized void checkChange()
{
int e = enum.following(getSelectionStart());
int s = enum.previous();
selectRange(s, e);
}
public final synchronized void selectRange(int s, int e)
{
try {
//if (getSelectionStart() != s || getSelectionEnd() != e) {
text.select(s, e);
//}
if (getSelectionStart() != s || getSelectionEnd() != e) {
System.out.println("AGH! select("+s+","+e+") -> ("+
getSelectionStart()+","+getSelectionEnd()+")");
}
} catch (Exception exp) {
errorText(exp.toString());
}
}
public void init()
{
buildGUI();
}
public void start()
{
}
void addWithFont(Container container, Component foo, Font font) {
if (font != null)
foo.setFont(font);
container.add(foo);
}
public void buildGUI()
{
setBackground(Color.white);
setLayout(new BorderLayout());
Panel topPanel = new Panel();
Label titleLabel = new Label("Text Boundary Demo", Label.CENTER);
titleLabel.setFont(Utility.titleFont);
topPanel.add(titleLabel);
Label demo=new Label(creditString, Label.CENTER);
demo.setFont(Utility.creditFont);
topPanel.add(demo);
Panel choicePanel = new Panel();
Label demo1=new Label("Boundaries", Label.LEFT);
demo1.setFont(Utility.labelFont);
choicePanel.add(demo1);
bound = new Choice();
bound.addItemListener(this);
bound.addItem("Sentence");
bound.addItem("Line Break");
bound.addItem("Word");
bound.addItem("Char");
if (choiceFont != null)
bound.setFont(choiceFont);
choicePanel.add(bound);
topPanel.add(choicePanel);
Utility.fixGrid(topPanel,1);
add("North", topPanel);
int ROWS = 15;
int COLUMNS = 50;
text = new TextArea(getInitialText(), ROWS, COLUMNS);
text.addKeyListener(this);
text.setEditable(true);
text.selectAll();
text.setFont(Utility.editFont);
add("Center", text);
Panel copyrightPanel = new Panel();
addWithFont (copyrightPanel,
new Label(copyrightString, Label.LEFT),Utility.creditFont);
addWithFont (copyrightPanel,
new Label(copyrightString2, Label.LEFT),Utility.creditFont);
Utility.fixGrid(copyrightPanel,1);
add("South", copyrightPanel);
//layout();
handleEnumChanged();
// (new Thread(this)).start();
}
public String getInitialText()
{
return
/*
"\"This is a sentence.\" This is not.\" \"because. And go. " +
"This is a simple 012.566,5 sample sentence. \n"+
"It does not have to make any sense as you can see. \n"+
"Nel mezzo del cammin di nostra vita, mi ritrovai in "+
"una selva oscura. \n"+
"Che la dritta via aveo smarrita. \n"+
"He said, that I said, that you said!! \n"+
"Don't rock the boat.\n\n"+
"Because I am the daddy, that is why. \n"+
"Not on my time (el timo.)! \n"+
"Tab\tTab\rTab\tWow."+
"So what!!\n\n"+
"Is this a question??? " +
"I wonder...Hmm.\n" +
"Harris thumbed down several, including \"Away We Go\" "+
"(which became the huge success Oklahoma!). \n"+
"One species, B. anthracis, is highly virulent.\n"+
"Wolf said about Sounder: \"Beautifully thought-out and "+
"directed.\"\n"+
"Have you ever said, \"This is where I shall live\"? \n"+
"He 1000,233,456.000 answered, \"You may not!\" \n"+
"Another popular saying is: \"How do you do?\". \n"+
"What is the proper use of the abbreviation pp.? \n"+
"Yes, I am 1,23.322% definatelly 12\" tall!!";
*/
"(\"This is a complete sentence.\") This is (\"not.\") also. \n"
+"An abbreviation in the middle, etc. and one at the end, etc. "+
"This\n"
+"is a simple sample 012.566,5 sentence. It doesn't\n"
+"have to make any sense, as you can see. Nel mezzo del \nc"
+"ammin di nostra vita, mi ritrovai in una selva oscura. Che\n"
+"la dritta via aveo smarrita. Not on my time (el timo.)! And\n"
+"tabulated columns: \tCol1\tCol2\t3,456%.\t\n"
+"Is this a question??? I wonder... Hmm. Harris thumbed\n"
+"down several, including \"Away We Go\" (which became the \n"
+"huge success Oklahoma!). One species, B. anthracis, is \n"
+"highly virulent. Wolf said about Sounder: \"Beautifully \n"
+"thought-out and directed.\" Have you ever said, \"This is "+
"where I\n"
+"shall live\"? He said 1000,233,456.000 and answered, \"You "+
"may not!\" \n"
+"Another popular saying is: \"How do you do?\". What is the \n"
+"proper use of the abbreviation pp.? Yes, I am 12\' 3\" tall!!";
}
public void handleEnumChanged()
{
String s = bound.getSelectedItem();
if (s.equals("Char")) {
errorText("getCharacterInstance");
enum = BreakIterator.getCharacterInstance();
}
else if (s.equals("Word")) {
errorText("tWordBreak");
enum = BreakIterator.getWordInstance();
}
else if (s.equals("Line Break")) {
errorText("getLineInstance");
enum = BreakIterator.getLineInstance();
}
else /* if (s.equals("Sentence")) */ {
errorText("getSentenceInstance");
enum = BreakIterator.getSentenceInstance();
}
enum.setText(text.getText());
selectRange(0, 0);
//text.select(0,0);
}
public void handleForward()
{
try {
enum.setText(text.getText());
int oldStart = getSelectionStart();
int oldEnd = getSelectionEnd();
if (oldEnd < 1) {
selectRange(0, enum.following(0));
}
else {
int s = enum.following(oldEnd-1);
int e = enum.next();
if (e == -1) {
e = s;
}
selectRange(s, e);
}
//text.select(s, e);
//errorText("<" + oldStart + "," + oldEnd + "> -> <" +
//s + "," + e + ">");
}
catch (Exception exp) {
errorText(exp.toString());
}
}
public void handleBackward()
{
try {
enum.setText(text.getText());
int oldStart = getSelectionStart();
int oldEnd = getSelectionEnd();
if (oldStart < 1) {
selectRange(0, 0);
}
else {
int e = enum.following(oldStart-1);
int s = enum.previous();
selectRange(s, e);
}
//text.select(s, e);
//errorText("<" + oldStart + "," + oldEnd + "> -> <" + s + "," + e + ">");
}
catch (Exception exp) {
errorText(exp.toString());
}
}
/* ItemListener method */
public void itemStateChanged(ItemEvent e) {
if(e.getSource() instanceof Choice)
handleEnumChanged();
}
/* KeyListener methods */
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_RIGHT){
e.consume();// don't deliver the event to the native widget
handleForward();
} else if (e.getKeyCode() == KeyEvent.VK_LEFT) {
e.consume();// don't deliver the event to the native widget
handleBackward();
}
}
public void keyReleased(KeyEvent e) {
}
public void keyTyped(KeyEvent e) {
}
/* Window Listener methods */
public void windowClosed(WindowEvent e) {
}
public void windowDeiconified(WindowEvent e) {
}
public void windowIconified(WindowEvent e) {
}
public void windowActivated(WindowEvent e) {
}
public void windowDeactivated(WindowEvent e) {
}
public void windowOpened(WindowEvent e) {
}
public void windowClosing(WindowEvent e) {
setVisible(false);
dispose();
if (applet != null) {
applet.demoClosed();
} else System.exit(0);
}
public void errorText(String s)
{
if (DEBUG)
System.out.println(s);
}
}
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