My Java GUI application needs to quickly show some text to the end-user, so the JOptionPane utility methods seem like a good fit. Moreover, the text must be selectable (for copy-and-paste) and it could be somewhat long (~100 words) so it must fit nicely into the window (no text off screen); ideally it should all be displayed at once so the user can read it without needing to interact, so scrollbars are undesirable.
I thought putting the text into a JTextArea and using that for the message in JOptionPane.showMessageDialog would be easy but it appears to truncate the text!
public static void main(String[] args) {
JTextArea textArea = new JTextArea();
textArea.setText(getText()); // A string of ~100 words "Lorem ipsum...\nFin."
textArea.setColumns(50);
textArea.setOpaque(false);
textArea.setEditable(false);
textArea.setLineWrap(true);
textArea.setWrapStyleWord(true);
JOptionPane.showMessageDialog(null, textArea, "Truncated!", JOptionPane.WARNING_MESSAGE);
}
How can I get the text to fit entirely into the option pane without scrollbars and selectable for copy/paste?
import java.awt.*;
import javax.swing.*;
public class TextAreaPreferredHeight2
{
public static void main(String[] args)
{
String text = "one two three four five six seven eight nine ten ";
JTextArea textArea = new JTextArea(text);
textArea.setColumns(30);
textArea.setLineWrap( true );
textArea.setWrapStyleWord( true );
textArea.append(text);
textArea.append(text);
textArea.append(text);
textArea.append(text);
textArea.append(text);
textArea.setSize(textArea.getPreferredSize().width, 1);
JOptionPane.showMessageDialog(
null, textArea, "Not Truncated!", JOptionPane.WARNING_MESSAGE);
}
}
If you need to display a string of an unknown length, you can set number of rows "on the fly":
public static void showMessageDialogFormatted(String msg, String title, int messageType, int columnWidth) {
JTextArea textArea = new JTextArea(msg);
textArea.setColumns(columnWidth);
textArea.setRows(msg.length() / columnWidth + 1);
textArea.setLineWrap(true);
textArea.setEditable(false);
textArea.setWrapStyleWord(true);
JOptionPane.showMessageDialog(null, textArea, title, messageType);
}
You've got the right idea. Just adjust the rows of your textarea.
textArea.setRows(10); // or value that seems acceptable to you...
This seemed to fix the issue for me, using 100 words of lorem ipsum.
Try this:
JTextArea textArea = new JTextArea();
textArea.setText(getText());
textArea.setSize(limit, Short.MAX_VALUE); // limit = width in pixels, e.g. 500
textArea.setWrapStyleWord(true);
textArea.setLineWrap(true);
Related
I am creating a GUI that will allow the user to input Lake information for the state of Florida and then has the ability to display that lake information. I want the display information to be in a JOptionPane.showMessageDialog that has the ability to scroll through the ArrayList of all the lake names. I am able to add the lakes into the ArrayList but they will not display in my JOptionPane and it is blank. I know it is reading something in the ArrayList since it is opening that window. Here is the code below in snippets as the whole thing would be cra.
public static ArrayList<Lakes> lake = new ArrayList<Lakes>();
private JTextArea textAreaDisplay;
private JScrollPane spDisplay;
// this is called in my initComponent method to create both
textAreaDisplay = new JTextArea();
for (Object obj : lake)
{
textAreaDisplay.append(obj.toString() + " ");
}
spDisplay = new JScrollPane(textAreaDisplay);
textAreaDisplay.setLineWrap(true);
textAreaDisplay.setWrapStyleWord(true);
spDisplay.setPreferredSize(new Dimension(500, 500));
// this is called in my createEvents method. After creating lakes in the database
// it will display the else statement but it is empty
btnDisplayLake.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try
{
if (lake.size() == 0)
{
JOptionPane.showMessageDialog(null, "No Lakes in database!");
}
else
JOptionPane.showMessageDialog(null, spDisplay, "Display Lakes", JOptionPane.YES_NO_OPTION);
}
catch (Exception e1)
{
}
}
});
Thank you for any help you can provide. I have been racking my brain for a few days on this. Been able to get other stuff accomplished but coming back to this issue.
Some obvious issues:
textAreaDisplay = new JTextArea();
A JTextArea should be created with code like:
textAreaDisplay = new JTextArea(5, 20);
By specifying the row/column the text area will be able to calculate its own preferred size. Scrollbars should appear when the preferred size of the text area is greater than the size of the scroll pane.
spDisplay.setPreferredSize(new Dimension(500, 500));
Don't use setPreferredSize(). The scroll area will calculate its preferred size based on the preferred size of the text area.
textAreaDisplay.append(obj.toString() + " ");
I would think you want each Lake to show on a different line, so I would append "\n" instead of the space.
I was setting textAreaDisplay before anything was entered into the ArrayList and it would not run again after anything was entered. I moved the for loop down and into the actionPerformed event and works well now.
btnDisplayLake.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try
{
for (Object obj : lake)
{
textAreaDisplay.append(obj.toString() + "\n");
}
if (lake.size() == 0)
{
JOptionPane.showMessageDialog(null, "No Lakes in database!");
}
else
JOptionPane.showMessageDialog(null, spDisplay, "Display Lakes", JOptionPane.YES_NO_OPTION);
}
catch (Exception e1)
{
I have a JEditorPane using "text/html" type and I have added the editorPane to a JScrollPane. Everything is good except it shows the very bottom of the JEditorPane when start. I want to display the very top by default.
Here is my code:
public class DisclaimerPage extends JPanel {
private static final String DISCLAIMER_CONTENT =
"<h2>This is a H2 header</h2>" + //Bold first line (Title)
"<p> This is the first paragraph having many lines of text. Text Text Text"
+ "Text Text TextText Text TextText Text TextText Text TextText Text TextText Text Text</p>" //Content
+ "<p> <b>Bold Second Paragraph</b>: there will be N number of paragraph after this.</p>"
+ "<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>"
+ "<p> Last Paragraph </p>";
private JScrollPane disclaimerScrollPane;
private JEditorPane disclaimerContentPane;
public DisclaimerPage() {
setLayout(new BorderLayout(0, 15));
disclaimerContentPane = new JEditorPane();
disclaimerContentPane.setEditable(false);
disclaimerContentPane.setContentType("text/html");
disclaimerContentPane.setText(DISCLAIMER_CONTENT);
disclaimerScrollPane = new JScrollPane(disclaimerContentPane);
disclaimerScrollPane.setPreferredSize(new Dimension(480, 360));
this.add(disclaimerScrollPane, BorderLayout.CENTER);
}
}
By using
disclaimerContentPane.setCaretPosition(0);
can solve this issue
So I'm trying to make a simple dialog where the user can input some information... My problem is that I'm trying to make the whole background white; I got MOST of it, but there's a gray line behind the buttons that I don't know how to fix (make white as well). How can I fix it? :(
What it looks like:
What I want:
Code:
JPanel all = new JPanel();
all.setLayout(new BorderLayout());
all.add(names, BorderLayout.NORTH);
all.add(academic, BorderLayout.CENTER);
all.setBackground(Color.WHITE);
all.setBorder(BorderFactory.createEmptyBorder(20, 20, 20, 20)); //int top, int left, int bottom, int right
Object [] options = {"SAVE", "EXIT"};
JOptionPane jop = new JOptionPane(all, JOptionPane.PLAIN_MESSAGE , JOptionPane.YES_NO_OPTION, null, options, null);
final JDialog dialog = jop.createDialog(null, "Username Information");
jop.setBackground(Color.WHITE);
dialog.setBackground(Color.WHITE);
dialog.setLocation(585, 300);
dialog.setVisible(true);
String choice = (String) jop.getValue();
I have tried many different tutorials and none have worked this is what I have. Any help?
UIManager.put("OptionPane.font", new FontUIResource(new Font("Press Start 2P", Font.PLAIN, 11)));
if (questionNumber == questions.size()) {
triviagui.questionFrame.setVisible(false);
JOptionPane.showMessageDialog(null, "Your score for this level was : " + levelScore + " out of 10. \n Your total score is " + triviagui.totalScore, "Scores", JOptionPane.INFORMATION_MESSAGE, pokeballIcon);
}
this is how I change my font in a JLabel, so maybe it is any help?
message = new JLabel(textMessage);
// create bigger text (to-times-bigger)
Font f = message.getFont();
message.setFont(new Font(f.getName(), Font.PLAIN, f.getSize()*2));
// put text in middle of vertical space
message.setVerticalTextPosition(JLabel.CENTER);
You just take the font from your label, and reset the font as you like.
Maybe you can do the same with your JDialog?
I found a working answer here: formatting text in jdialog box
this could be a method called by the actionListener of a button:
public void openPopUp(){
String t = "<html>The quick <font color=#A62A2A>brown</font> fox.";
JOptionPane.showMessageDialog(null, t);
}
Gives you this result:
All I want to do is have a JOptionPane inputDialog with a JTextArea instead of a JTextField.
I tried putting the JTextArea inside of the Message parameter like so
Object[] inputText = new Object[]{new JLabel("Enter Graph Information"),
newJTextArea("",20,10)};
graphInfo=(String)JOptionPane.showInputDialog(null,
inputText,
"Create Graph",
JOptionPane.PLAIN_MESSAGE,
null,
null,
"");
But it still has the text field at the bottom and I cannot get the text from the JTextArea.
Is there any way to either remove the original text field and get the text from the jtextarea or replace the text field with the text area completely? I'm trying to avoid having to make a custom dialog if possible and this "seems" like something that should be easy to do?
You're on the right lines; you just need to use showConfirmDialog instead of showMessageDialog, which allows you to pass any Component as your "message" and have it displayed within the JDialog. You can then capture the contents of the JTextArea if the user clicks OK; e.g.
int okCxl = JOptionPane.showConfirmDialog(SwingUtilities.getWindowAncestor(this),
textArea,
"Enter Data",
JOptionPane.OK_CANCEL_OPTION)
if (okCxl == JOptionPane.OK_OPTION) {
String text = textArea.getText();
// Process text.
}
If you want to show a JLabel in conjunction with your JTextArea you can create and pass in a JPanel containing both Components; e.g.
JTextArea textArea = ...
JPanel pnl = new JPanel(new BorderLayout());
pnl.add(new JLabel("Please enter some data:"), BorderLayout.NORTH);
pnl.add(textArea, BorderLayout.CENTER);
JOptionPane.show...