Ficou transparente, mas quando da scroll acontece isso:
Vou passar a classe inteira, pode ser algo q estou fazeno de errado. A classe ta bem baguncada, fiz ela so pra testar esse negocio da transparencia, tem uns objetos meio estranhos como a Library mas acho q da pra pegar a ideia do codigo. A classe funciona como um reporter pra exceptions. O codigo:
import java.awt.Color;
import java.awt.Desktop;
import java.awt.Window;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.net.URI;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.WindowConstants;
/**
* Class to show a fatal error and finalize application.
* In the future this class must use components from Components package
* to make things work. When the window is closed the application is finalized.
*/
public class ErrorWindow extends JDialog implements ActionListener, Thread.UncaughtExceptionHandler
{
private Picture background; // Background image
private Picture intro; // The top message
private Library library; // Lib to load things
private Button okButton; // Button to report
private String url; // Url to go when button pressed
private Throwable ex; // Exception
private JScrollPane scrollPane; // Scroll pane of text area
private Window mainWindow; // The Main Window
/**
* Default constructor.
*/
public ErrorWindow(Window mainWindow, String url)
{
this(null, mainWindow, url);
}
/**
* Constructor. It will construct the window, call showWindow to show it..
* @param ex the error
* @param url the url report to send the user
*/
public ErrorWindow(Throwable ex, Window mainWindow, String url)
{
// Initializing
this.mainWindow = mainWindow;
this.url = url;
this.ex = ex;
setTitle("Ops! An Error has occured!");
setDefaultCloseOperation(DISPOSE_ON_CLOSE);
setResizable(false);
library = new Library();
setModal(true);
}
/**
* Shows the error window.
* @param ex the error
* @param url the url report to send the user
*/
public void showWindow(Throwable ex)
{
this.ex = ex;
ex.printStackTrace();
showWindow();
}
/**
* Shows the error window.
*/
public void showWindow()
{
// Fires close window to Main Window
if (mainWindow instanceof JFrame)
((JFrame) mainWindow).setDefaultCloseOperation(WindowConstants.HIDE_ON_CLOSE);
mainWindow.dispatchEvent(new WindowEvent(mainWindow, WindowEvent.WINDOW_CLOSING));
// Adding other events and stuff
addWindowListener(new WindowAdapter()
{
@Override
public void windowClosing(WindowEvent we)
{
trueClose();
}
});
try
{
background = new Picture(library.getPicture("error/ErrorBackground.jpg"), 0, 0);
okButton = new Button(library.getDefaultFont(), "REPORT!", "REPORT_PRESSED",
library.getPicture("error/ReportButton.png"), 0, 0);
setSize(background.getWidth(), background.getHeight() + 30);
intro = new Picture(library.getPicture("error/TopMessage.png"), 0, 0);
intro.setLocation((background.getWidth() - intro.getWidth()) / 2, 10);
okButton.addActionListener(this);
add(intro);
add(okButton);
prepareTrace(ex);
okButton.setLocation((background.getWidth() - okButton.getWidth()) / 2,
scrollPane.getY() + scrollPane.getHeight());
add(background);
}
catch (Exception e)
{
// Images not found
setSize(300, 65);
setLayout(null);
Label label = new Label(library.getDefaultFont(), "Could not load ErrorWindow images!", 20, 10);
label.setForeground(Color.red);
add(label);
}
setLocationRelativeTo(null);
setVisible(true);
}
/**
* Preparing error image and message.
* @param ex the error
*/
private void prepareTrace(Throwable ex)
{
String message = ex.toString();
StackTraceElement[] stackTrace = ex.getStackTrace();
for (int x = 0; x < stackTrace.length; ++x)
{
message += "\n\t" + stackTrace[x].toString();
}
JTextArea txt = new JTextArea();
txt.setEditable(false);
txt.setText(message);
txt.setFont(library.getDefaultFont());
txt.setForeground(Color.red);
scrollPane = new JScrollPane(txt, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
scrollPane.setBounds(20, intro.getY() + intro.getHeight(), getWidth() - 40, 215);
add(scrollPane);
txt.setOpaque(false);
scrollPane.setOpaque(false);
scrollPane.getViewport().setOpaque(false);
}
/**
* Finalizing the application and sending user to the url.
*/
private void trueClose()
{
// If I can open it
if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE))
{
try
{
Desktop.getDesktop().browse(new URI(url));
}
catch (Exception exc)
{
// Not possible to report
JOptionPane.showMessageDialog(this, "Could not report! Please do it manually by acessing: " + url,
"Error Reporting!", JOptionPane.ERROR_MESSAGE);
}
}
else
{
// Not possible to report
JOptionPane.showMessageDialog(this, "Could not report! Please do it manually by acessing: " + url,
"Error Reporting!", JOptionPane.ERROR_MESSAGE);
}
this.setVisible(false);
this.dispose();
System.exit(1);
}
/**
* Event happened.
* @param e the event
*/
@Override
public void actionPerformed(ActionEvent e)
{
if (e.getActionCommand().equals("REPORT_PRESSED"))
{
trueClose();
}
}
/**
* Exception happened.
*/
@Override
public void uncaughtException(Thread t, Throwable e)
{
showWindow(e);
}
}
