JTextArea - setLineWrap(true) = no text
Hi,
Cross-posted to comp.lang.java.gui...
I have a JTextArea that is running over a JPanel with an image in it.
Here's the code:
Image image = Toolkit.getDefaultToolkit().getImage("images/homer02.jpg");
ImagePanel quotesPanel = new ImagePanel(image);
quotesTextArea = new JTextArea(getNextQuote());
quotesTextArea.setLineWrap(true);
quotesTextArea.setWrapStyleWord(true);
quotesTextArea.setOpaque(false);
quotesPanel.add(quotesTextArea);
When I try to use setLineWrap(true), the text won't display,
but when that method is commented out, the text is displayed
but centered and all on one line, falling off each end.
Is there something I'm not doing? The code matches that in the TextComponent
demo in the Swing tutorial, although they use a JFrame while this is all part of a
JWindow that shows quotes from the ancient Greeks over an image of the poet
Homer, (not Mr. Simpson). ImagePanel is an extension of JPanel that has an
image as a background. getNextQuote() returns a quote from a text file.
Thank you in advance,
Edward
hello Andy
iam using the same and the text is visible. i.e textArea.setLineWrap( true );
asrar
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"apply to you.\n\nInformation provided through the software may be " +
"delayed, inaccurate, or contain errors or omissions, and the Associates " +
"will have no liability with respect thereto. GonZor may change or " +
"discontinue any aspect or feature of the software or the use of all " +
"or any features or technology in the software at any time without " +
"prior notice to you, including, but not limited to, content, hours " +
"of availability.\n\n6. \tControlling Law.\n\nThis software license " +
"and the relationship between you and GonZor is governed by the laws " +
"of Australia without regard to its conflict of law provisions. You " +
"and GonZor agree to submit to the personal and exclusive jurisdiction " +
"of the courts located within Australia. The United Nations Convention " +
"on the International Sale of Goods does not apply to this software " +
"license.\n\n7.\tPrecedence.\n\nThis software license constitutes the " +
"entire understanding between the parties respecting use of the software, " +
"superseding all prior agreements between you and GonZor.\n\n8.\tSurviving " +
"Provisions.\n\nSections 1, and 3 through 5, will survive any termination " +
"of this Agreement.\n\n---------------------------------------------------------------------------------" +
"---\nIf you accept the terms of the agreements, click I Agree to continue. " +
" You must accept the agreement to download and use the software. ");
scroll.setBounds(new Rectangle(36, 36, 478, 305));
this.getContentPane().add(readcheck);
readcheck.setVisible(false);
this.getContentPane().add(scroll);
textscroll = new JScrollPane (scroll, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
textscroll.setBounds(36,36,400,400);
getContentPane().add( textscroll );
this.getContentPane().add(background);
JLabel background = new JLabel();
JCheckBox readcheck = new JCheckBox();
JTextArea scroll = new JTextArea();
}Sorry about all the text for the agreement. I've tried a number of different things I got from searching the forums at different points in the code (setting the number of rows/columns, setting max and min sizes, etc etc) The code above that wraps the text I could have sworn I tried 3 times before it magically worked... I also tried using the awt component for textareas that had the scrollbars built in, but scrapped it after having even more difficulties with that one. I'm trying to get the textbox to only go down about 300 px and 300 px to the right. Using the graphical editor to change it produces a null pointer error at compile time(?!?). Can anyone help me to get the textbox to render as I want it to?
Edited by: rpk5000 on Jan 27, 2008 9:43 AMfor instance, boxlayout would work nicely with the installer frame (or dialog)
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JCheckBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class InstalleFrame
public InstalleFrame()
try
jbInit();
catch (Exception ex)
ex.printStackTrace();
private JScrollPane textscroll;
private JPanel contentPane = new JPanel();
private JLabel background = new JLabel();
private JCheckBox readcheck = new JCheckBox();
private JTextArea scroll = new JTextArea();
private void jbInit() throws Exception
contentPane.setLayout(new BoxLayout(contentPane, BoxLayout.PAGE_AXIS));
contentPane.setBackground(UIManager.getColor("window"));
contentPane.setBorder(BorderFactory.createEmptyBorder(15, 15, 15, 15));
scroll.setWrapStyleWord(true);
scroll.setLineWrap(true);
String text = "Copyright ? 2006-2007 GonZor228.com \n\nBy using or distributing this "
+ "software (or any work based on the software) you shall be deemed "
+ "to have accepted the terms and conditions set out below.\n\nGonZor228.com "
+ "(\"GonZor\") is making this software freely available on the basis "
+ "that it is accepted as found and that the user checks its fitness "
+ "for purpose prior to use.\n\nThis software is provided \'as-is\', without "
+ "any express or implied warranties whatsoever. In no event will the "
+ "authors, partners or contributors be held liable for any damages, "
+ "claims or other liabilities direct or indirect, arising from the "
+ "use of this software.\n\nGonZor will from time to time make software "
+ "updates available. However, GonZor accepts no obligation to provide "
+ "any support to free license holders.\n\nGonZor grants you a limited "
+ "non-exclusive license to use this software for any purpose that does "
+ "not violate any laws that apply to your person in your current jurisdiction, "
+ "subject to the following restrictions: \n\n\nblah, blah, blah,..."
+ "\n\n";
StringBuilder sb = new StringBuilder();
for (int i = 0; i < 5; i++)
sb.append(text);
scroll.setText(sb.toString());
contentPane.add(readcheck);
contentPane.add(scroll);
textscroll = new JScrollPane(scroll,
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
textscroll.setPreferredSize(new Dimension(400, 400));
contentPane.add(textscroll);
JPanel bottomPane = new JPanel();
bottomPane.setOpaque(false);
final JButton okButton = new JButton("OK");
final JButton cancelButton = new JButton("Cancel");
okButton.setEnabled(false);
readcheck.setOpaque(false);
readcheck.setText("I have read and accept the license agreement");
readcheck.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
JCheckBox radioBtn = (JCheckBox)e.getSource();
if (radioBtn.isSelected())
okButton.setEnabled(true);
else
okButton.setEnabled(false);
okButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
// TODO: whatever needs to be done here
cancelButton.addActionListener(new ActionListener()
public void actionPerformed(ActionEvent e)
SwingUtilities.getWindowAncestor(contentPane).dispose();
bottomPane.add(readcheck);
bottomPane.add(okButton);
bottomPane.add(cancelButton);
contentPane.add(bottomPane);
//readcheck.setVisible(false);
contentPane.add(background);
public JPanel getContentPane()
return contentPane;
public static void main(String[] args)
EventQueue.invokeLater(new Runnable()
public void run()
InstalleFrame install = new InstalleFrame();
JFrame frame = new JFrame("Install");
frame.getContentPane().add(install.getContentPane());
frame.setDefaultCloseOperation(3);
frame.setSize(550, 400);
frame.setUndecorated(false); //**
frame.pack(); //**
frame.setLocationRelativeTo(null); //**
frame.setVisible(true);
} -
Hi,
I am working on JTable and I am using DefaultTableModel.
I have a requirement that in one of the cells I need to show a multi line text which may contain 10 to 50 lines of text.I need to show all the text even on resizing the table.
Can anyone give me suggessions regarding this.
Thanks,
Bussa.Hi,
Write your custom JTableCellEditor and Renderer to install a JTextArea on the cell you want.
You can set the size of the larger row separately via
JTable.setRowHeight(int row, int value); To display the full text you should set
JTextArea.setLineWrap(true);
JTextArea.setWrapStyleWord(true);and set the width of the JTextArea static.
after this calculate the height of the JTextArea and set it to the table.
Olek -
Hi,
I'm currently working on a project that allows users to create their own resumes from a set of templates. Below is a picture of one template that I'm using for testing purposes.
http://content.screencast.com/users/hamedn/folders/Jing/media/61fa8030-8435-4fba-aefb-ad9b b51e1a96/2013-07-15_1350.png
Currently the way that it works is that I've tagged a fixed number of repeating textboxes (Date, Title, Location, Details) and with their parent tag as ExperienceItem, and then exported this as an XML file. The key of the application is that the user can edit the XML file however he wishes, and then I use Import XML to import his XML into the template and give him the outputted PDF file. However, there are a few things I need that I haven't figured out how to do yet. Any help would be greatly appreciated:
1. How do I make it so that if the user adds a lot of extra text (or very little) to one of the textboxes (such as the details textbox), the template shifts accordingly? So if there's one line, the other textboxes below shift upward to fill the empty space and the opposite if there's too much text.
2. How do I make the template more dynamic? I don't want to have to have 10 placeholder textboxes. Users should put as many or as little ExperienceItem's into the XML file, and the template should create as many items in the list as ExperienceItems.
3. How do I let extra content flow into the next page?
Thank you very much for the help!
-HamedSince this is the swing forum I will assume that you are using a JTextArea. Use:
JTextArea.setLineWrap(true);
JTextArea.setWrapStyleWork(true);
Those will cause word wrap. If you don't want to wrap by word then don't add the second method call. -
Dynamically Expanding TextArea while Typing
Hello,
I need to be able to have a TextArea that expands to a newline when my text exceeds the size of the TextArea. Initially it has to be 1 line, and about 20 columns wide. When I reach the right edge, I need to add another line to the TextArea (keeping the width constant) and have the text begin on the next line.
Has anyone ever done this?
Thank you!!Since this is the swing forum I will assume that you are using a JTextArea. Use:
JTextArea.setLineWrap(true);
JTextArea.setWrapStyleWork(true);
Those will cause word wrap. If you don't want to wrap by word then don't add the second method call. -
Hi Guys,
I am experiencing a problem about resize window.
In my swing application, I use a Textarea. In the textarea, also, i set the boundary.
In the textarea, I display some strings. Right now, the problem is that when I resize the window, the string can not be fit in the textarea. The string can not be shrink and expend.
Do you have any ideas about that.
Thanks in advance.
Eddyvery simple.
use jtextarea.setLineWrap(true)
and jtextarea.setWordWrapStyle(true)
or somethind like this.
Look the api for this methods. -
Cant Get Text To Show In JTextArea
Hi guys,
I'm trying to create a very simplistic GUI where the output of an IRC server is shown in a JTextArea. However for the life of me I can not get any text at all to show in the text area. Here's the class that creates the user interface:
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
public class SwingTest extends javax.swing.JFrame implements ActionListener {
JButton connect = new JButton("Connect");
JTextArea chat = new JTextArea();
public SwingTest() {
//set the title of the frame
super("Chat Window");
//set the size of the frame
setSize(800, 600);
//set what happens when the close button is clicked
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// create the scroll pane to add the text area to
chat.setLineWrap(true);
JScrollPane scroll = new JScrollPane(chat, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
//create the container panel
JPanel jp = new JPanel();
//create the layout manager and assign it to the container panel
BoxLayout horizontal = new BoxLayout(jp, BoxLayout.Y_AXIS);
jp.setLayout(horizontal);
//add the text area and button to the container panel
jp.add(scroll);
jp.add(connect);
//add the container panel to the frame
add(jp);
//make the frame and its contents visible
setVisible(true);
//add an event listener to the connect button
connect.addActionListener(this);
public void actionPerformed(ActionEvent event) {
int temp = 1;
SockThread mySock = new SockThread();
try {
Thread.sleep(20000);
while(temp == 1) {
while(mySock.pinger != false) {
chat.append(mySock.getStatus()+ "\n");
mySock.pinger = false;
break;
} catch (InterruptedException ie) {
chat.setText("Error " + ie.getMessage());
public static void main(String[] arguments) {
//create an instance of the SwingTest class and let it do its thing
SwingTest st = new SwingTest();
}Thanks hiwa, i did what you suggested and created a worker thread, but still I'm getting nothing in that JTextArea. I'm new to working with worker threads though, so if anyone wouldn't taking a look at my code just to see if I'm doing something wrong i would greatly appreciate it.
Here is my worker class:
import javax.swing.*;
public class ChatWorker extends SwingWorker {
String messages;
String output;
JTextArea chat;
public ChatWorker() {
super();
protected String doInBackground() {
int temp = 1;
SockThread st = new SockThread();
try {
Thread.sleep(20000);
//Perpetual loop needed to keep checking for server messages
while(temp == 1) {
while(st.pinger != false) {
messages = st.getStatus();
st.pinger = false;
break;
} catch (InterruptedException ie) {
return messages;
}And here is the update gui class to make use of the worker thread:
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import java.beans.*;
public class SwingTest extends javax.swing.JFrame implements ActionListener, PropertyChangeListener {
JButton connect = new JButton("Connect");
JTextArea chat = new JTextArea();
ChatWorker cw;
public SwingTest() {
//set the title of the frame
super("Chat Window");
//set the size of the frame
setSize(800, 600);
//set what happens when the close button is clicked
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
// create the scroll pane to add the text area to
chat.setLineWrap(true);
JScrollPane scroll = new JScrollPane(chat, ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS, ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
//create the container panel
JPanel jp = new JPanel();
//create the layout manager and assign it to the container panel
BoxLayout horizontal = new BoxLayout(jp, BoxLayout.Y_AXIS);
jp.setLayout(horizontal);
//add the text area and button to the container panel
jp.add(scroll);
jp.add(connect);
//add the container panel to the frame
add(jp);
//make the frame and its contents visible
setVisible(true);
//add an event listener to the connect button
connect.addActionListener(this);
public void actionPerformed(ActionEvent event) {
try {
cw = new ChatWorker();
cw.addPropertyChangeListener(this);
cw.execute();
} catch (Exception exc) {
public void propertyChange(PropertyChangeEvent event) {
try {
String tempText = (String)cw.get();
chat.append(tempText + "\n");
}catch (Exception exc) {
public static void main(String[] arguments) {
//create an instance of the SwingTest class and let it do its thing
SwingTest st = new SwingTest();
} -
Can't update text in JTextArea! Can you help?
[Update: If I remove the transparency everything is fine. However, I really need the transparency..]
Hi,
I have the simplest question, but I can't seem to get an answer to it. The problem is very simple: I have defined a JTextArea and I'm reading text into it. The problem is that the old text does not disappear, and the new text is pasted on top, making it unreadable. As an "act of desperation" I fixed this by setting the area invisible, updating it and setting it visible again, as you can see in the code. It works, but now it blinks in the screen (quite annoying!).
Is there a smarter way to to this? I need this on a transparent window (see class init below), overlayed on another JFrame.
I am on Mac OS X.
I hope some of you can help me with this problem
Thanks a lot in advance
Lele
public void UpdateOverlay(){
try{
BufferedReader b = this.ReadUrl("http://localhost/~"+System.getProperty("user.name")+"/overlaytext.txt");
this.Overlay.setVisible(false);
this.OverlayText.read(b, null);
this.Overlay.setVisible(true);
}catch(Exception e){
e.printStackTrace();
}Here you can see how I have initialized the class
public class MyClass {
//Overlay section
public JFrame Overlay=new JFrame("Overlay");
public Color OverlayColor=new Color(0.0f,0.0f,0.0f,0.0f);
public JTextArea OverlayText=new JTextArea();
public long Refresh_time=200;//ms
/** Creates a new instance of MyClass */
public MyClass(AWT1UpFrame f) {
int width=270,height=170,border_x=20,border_y=20;
//Initialize Overlay
this.Overlay.setVisible(false);
this.Overlay.setBackground(this.OverlayColor);
this.Overlay.setLocationRelativeTo(null);
this.Overlay.setUndecorated(true);
this.Overlay.setSize(width,height);
System.out.println("loc="+f.getLocation());
int x = f.getLocation().x+border_x;
int y = f.getLocation().y +f.getSize().height - border_y - height;
this.Overlay.setLocation(x, y);
this.Overlay.add(this.OverlayText);
this.Overlay.setAlwaysOnTop(true);
this.OverlayText.setLineWrap(true);
this.OverlayText.setWrapStyleWord(true);
this.OverlayText.setForeground(Color.GREEN);
this.OverlayText.setBackground(this.OverlayColor);
this.OverlayText.setFont(new Font("Arial", Font.ROMAN_BASELINE, 16));
/* and so on*/Edited by: Lele on Oct 25, 2007 4:22 PMHi, so this is the class. If I keep it like this, it simply overwrites old text with the new (like JTextArea thinks that the old text is a part of the background to be buffered). If I set it invisible and back to visible it works, but it blinks.
How can I let JTextArea understand that it shouldn't consider the old window as a background? Should I use another class?
Pls keep in mind that I'm on Mac, so maybe it's a Mac-specific thing, but I'd like to know..
Thanks
Lele
package transparency;
import java.net.*;
import javax.swing.*;
import javax.xml.parsers.*;
import java.awt.*;
import java.awt.font.*;
import java.io.*;
import java.lang.*;
import java.util.*;
import java.util.List;
import apple.awt.CTextArea;
public class Overlay {
//Overlay section
public JFrame Overlay=new JFrame("Overlay");
public Color OverlayColor=new Color(0.0f,0.0f,0.0f,0.0f);
public JTextArea OverlayText=new JTextArea();
public long Refresh_time=200;//ms
/** Creates a new instance of Overlay */
public Overlay() {
int width=270,height=170,border_x=20,border_y=20;
//Initialize Overlay
this.Overlay.setVisible(false);
this.Overlay.setBackground(this.OverlayColor);
this.Overlay.setLocationRelativeTo(null);
this.Overlay.setUndecorated(true);
this.Overlay.setSize(width,height);
//System.out.println("loc="+f.getLocation());
//int x = f.getLocation().x+border_x;
//int y = f.getLocation().y +f.getSize().height - border_y - height;
//this.Overlay.setLocation(x, y);
this.Overlay.add(this.OverlayText);
this.Overlay.setAlwaysOnTop(true);
this.OverlayText.setLineWrap(true);
this.OverlayText.setWrapStyleWord(true);
this.OverlayText.setForeground(Color.GREEN);
this.OverlayText.setBackground(this.OverlayColor);
this.OverlayText.setFont(new Font("Arial", Font.ROMAN_BASELINE, 16));
this.Overlay.setVisible(true);
public void UpdateOverlay(){
try{
//Reading URL
//String Address="http://localhost/~"+System.getProperty("user.name")+"/overlaytext.txt";
//URL url= new URL(Address);
//BufferedReader b = new BufferedReader(new InputStreamReader(url.openStream()));
//this.Overlay.setVisible(false);
//this.OverlayText.read(b, null);
//this.Overlay.setVisible(true);
//Test
//this.Overlay.setVisible(false);
String RandomText="The time is: "+System.currentTimeMillis();
this.OverlayText.setText(RandomText);
//this.Overlay.setVisible(true);
}catch(Exception e){
e.printStackTrace();
}.. and this is the main
package transparency;
import java.net.*;
import javax.swing.*;
import javax.xml.parsers.*;
import java.awt.*;
import java.awt.font.*;
import java.io.*;
import java.lang.*;
import java.util.*;
import java.util.List;
import transparency.*;
public class Main {
/** Creates a new instance of Main */
public Main() {
public static void main(String[] args) {
JFrame f=new JFrame();
f.setDefaultCloseOperation(f.EXIT_ON_CLOSE);
f.setVisible(true);
Overlay ov=new Overlay();
try{
while(f.isVisible()){
ov.UpdateOverlay();
Thread.sleep(100);
}catch(Exception e){
e.printStackTrace();
}Edited by: Lele on Oct 26, 2007 3:40 AM -
JTextArea as ListCellRenderer in JPanel with JSplitPane and text wrapping
Hi.
I have problem with JTextArea text wrapping. The JTextArea is used as ListCellRenderer in JList and it has set:
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);I can dynamically add new Notes, modify and remove notes on JList. The capacity of the Text is various so the size of cells is various.
The JList is in JScrollPane configured like this:
JList notesList = new JList();
JScrollPane scrollPane = new JScrollPane(
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER
scrollPane.setViewportView(notesList);This scrollPane is put on the left component in the JSplitPane.
When I put one note with any capacity I want, word wrapping works great even if I move the splitter. The size of cells in JList changes as I want. When JList has more width the cells have less height, when JList has less width the cells height grows because of text wrapping.
Problem
Sometimes and I don't know when and why the cells size is fixed.
I put new note to the list, JList lays the cell, calculate the size and disply it. It is good but when I move splitter the size of the cell is the same. It seems that during moving the splitter the JTextArea doesn't calculate their size.
I would like in every cell in JList to see whole text wrapped. When I make more width by slider I would like to see whole text with less number of rows. When I make less width with the slider I want to see whole text wrapped and more higher cells.
Can someone help me where to looking for ideas.Hi.
I have problem with JTextArea text wrapping. The JTextArea is used as ListCellRenderer in JList and it has set:
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);I can dynamically add new Notes, modify and remove notes on JList. The capacity of the Text is various so the size of cells is various.
The JList is in JScrollPane configured like this:
JList notesList = new JList();
JScrollPane scrollPane = new JScrollPane(
JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_NEVER
scrollPane.setViewportView(notesList);This scrollPane is put on the left component in the JSplitPane.
When I put one note with any capacity I want, word wrapping works great even if I move the splitter. The size of cells in JList changes as I want. When JList has more width the cells have less height, when JList has less width the cells height grows because of text wrapping.
Problem
Sometimes and I don't know when and why the cells size is fixed.
I put new note to the list, JList lays the cell, calculate the size and disply it. It is good but when I move splitter the size of the cell is the same. It seems that during moving the splitter the JTextArea doesn't calculate their size.
I would like in every cell in JList to see whole text wrapped. When I make more width by slider I would like to see whole text with less number of rows. When I make less width with the slider I want to see whole text wrapped and more higher cells.
Can someone help me where to looking for ideas.
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