xjavaconsole.java

java写的浏览器

/****************************************************************
*              XBrowser  -  eXtended web Browser                *
*                                                               *
*           Copyright (c) 2000-2001  Armond Avanes              *
*     Refer to ReadMe & License files for more information      *
*                                                               *
*                                                               *
*                      By: Armond Avanes                        *
*       [e-mail]     &    [e-mail]        *
*                http://xbrowser.sourceforge.net/               *
*****************************************************************/
package xbrowser.plugin.defaults.javaconsole;

import java.io.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

import xbrowser.plugin.*;
import xbrowser.options.*;

public class XJavaConsole extends JPanel implements XGUIPlugin
{
	public void init()
	{
		txaConsole.setEditable(false);

		setLayout( new BorderLayout() );
		add(new JScrollPane(txaConsole), BorderLayout.CENTER);
		add(getButtonsPanel(),BorderLayout.SOUTH);

		try
		{
		PrintStream output = new PrintStream( new XOutputStream() );

			System.setOut(output);
			System.setErr(output);
		}
		catch( Exception e )
		{
			context.getLogger().error(this, "Error on redirecting the streams !!");
			context.getLogger().error(this, e);
		}

        setPreferredSize( new Dimension(500,350) );
	}

	public void start()
	{
	}

	public void stop()
	{
	}

	public void destroy()
	{
	}

	public void setContext(XPluginContext context)
	{
		this.context = context;
		context.getResourceManager().initResourceBundle("XJavaConsole");
	}

	public Component getComponent()
	{
		return this;
	}

	public String getTitle()
	{
		return context.getResourceManager().getProperty(this, "Title");
	}

	public XOptionPage getOptionPage()
	{
		return null;
	}

    private JPanel getButtonsPanel()
    {
	JPanel pnl_main = new JPanel(new FlowLayout());
	JPanel pnl = new JPanel(new GridLayout(1,3,20,0));

		pnl.add(context.getComponentBuilder().buildButton(new ClearAction()));
		pnl.add(context.getComponentBuilder().buildButton(new CopyAction()));

        pnl_main.add(pnl);
        return pnl_main;
	}

    private class ClearAction extends XPluginAction
    {
        public ClearAction()
        {
            super(XJavaConsole.this, "Clear", null, XJavaConsole.this.context);
        }

        public void actionPerformed(ActionEvent e)
        {
			txaConsole.setText("");
        }
    }

    private class CopyAction extends XPluginAction
    {
        public CopyAction()
        {
            super(XJavaConsole.this, "Copy", null, XJavaConsole.this.context);
        }

        public void actionPerformed(ActionEvent e)
        {
	        txaConsole.copy();
        }
    }

	private class XOutputStream extends OutputStream
	{
		public synchronized void write(int b) throws IOException
		{
			txaConsole.append(""+((char)b));
		}
	}

// Attributes:
	private JTextArea txaConsole = new JTextArea(20,10);
	private XPluginContext context;
}