gplogconsole.java

用JGraph编的软件

		this.add(jMenuItemSaveToFile);
		this.add(jMenuItemSendEmail);

		jMenuItemClearWindow
			.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(ActionEvent e) {
				clearWindow();
			}
		});
		jMenuItemSaveToFile
			.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(ActionEvent e) {
				saveWindowToFile();
			}
		});
		jMenuItemSendEmail
			.addActionListener(new java.awt.event.ActionListener() {
			public void actionPerformed(ActionEvent e) {
				String email = Translator.getString("Error.EmailTechSupportAddress");
				String subj = "?subject=runtime error message&body=";
				String msg = null;
				try {
					// UTF8 is not exactly to spec for mailto: encoding 
					// but it will work. only alternative is attaching
					// the javamail package at ~1.5Mb
					msg = URLEncoder.encode(currentWindow.getText(), "UTF-8");
				}
				catch (java.io.UnsupportedEncodingException ue){
					System.out.println(ue);	
				}

				try {
					BrowserLauncher.openURL("mailto:"+email+subj+msg);
				} 
				catch (IOException ioe){
					System.out.println(ioe);	
				}
			}
		});
		
		//jMenuItemSaveToFile.setEnabled(false);//.disable();
	}

	/** Sets the current text area
	 *
	 */
	public void setTextArea(JTextArea ta) {
		currentWindow = ta;
	}
	/** clears the window
	 */
	private void clearWindow() {
		currentWindow.setText("");
	}
	/** Shows a file chooser and saves the
	  * file to the selected name
	 */
	private void saveWindowToFile() {
		JFileChooser fileDlg = new JFileChooser();
		//fileDlg.setFileFilter(filter);
		// no file selected.
		if (JFileChooser.APPROVE_OPTION != fileDlg.showSaveDialog(null)) {
			System.out.println("No file selected"/*#Frozen*/);
			return;
		}
		File f = fileDlg.getSelectedFile();

		if (!f.canWrite())
			System.err.println("Can't write to file " + f.getAbsolutePath()/*#Frozen*/);
		try {
			PrintStream os = new PrintStream(new FileOutputStream(f));
			os.println(currentWindow.getText());
			os.close();

			clearWindow();
		} catch (FileNotFoundException e) {
			System.err.println("Can't write to file " + f.getAbsolutePath()/*#Frozen*/);
		}
	}
}

/**A PrintStream for the text area output.
 *
 * @author Sven Luzar
 * */
class JTextAreaOutputStream extends PrintStream {
	/** the target for this printstream
	*/
	private JTextArea target = null;

	/** the original PrintStream to forward this
	 *  stream to the original stream
	 */
	private PrintStream orig = null;

	/** Flag is true if the stream should forward
	 *  the output to the original stream
	 *
	 */
	private boolean showOrig = false;

	/**creates an instance
	 *
	 */
	public JTextAreaOutputStream(
		JTextArea t,
		PrintStream orig,
		boolean showOrig) {
		super(new ByteArrayOutputStream());
		target = t;

		this.showOrig = showOrig;
		this.orig = orig;
	}
	/** writes a boolean value to the target
	 */
	public void print(boolean b) {
		if (showOrig)
			orig.print(b);
		if (b)
			target.append("true"/*#Frozen*/);
		else
			target.append("false"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes a boolean value to the target
	 *
	 */
	public void println(boolean b) {
		if (showOrig)
			orig.println(b);

		if (b)
			target.append("true\n"/*#Frozen*/);
		else
			target.append("false\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(char c) {
		if (showOrig)
			orig.print(c);

		char[] tmp = new char[1];
		tmp[0] = c;
		target.append(new String(tmp));
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void println(char c) {
		if (showOrig)
			orig.println(c);

		char[] tmp = new char[2];
		tmp[0] = c;
		tmp[1] = '\n';
		target.append(new String(tmp));
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(char[] s) {
		if (showOrig)
			orig.print(s);

		target.append(new String(s));
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void println(char[] s) {
		if (showOrig)
			orig.println(s);

		target.append(new String(s) + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(double d) {
		if (showOrig)
			orig.print(d);

		target.append(Double.toString(d));
		target.setCaretPosition(target.getText().length());
	}
	/** writes the value to the target
	 *
	 */
	public void println(double d) {
		if (showOrig)
			orig.println(d);

		target.append(Double.toString(d) + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(float f) {
		if (showOrig)
			orig.print(f);

		target.append(Float.toString(f));
		target.setCaretPosition(target.getText().length());
	}
	/** writes the value to the target
	 *
	 */
	public void println(float f) {
		if (showOrig)
			orig.println(f);

		target.append(Float.toString(f) + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(int i) {
		if (showOrig)
			orig.print(i);

		target.append(Integer.toString(i));
		target.setCaretPosition(target.getText().length());
	}
	/** writes the value to the target
	 *
	 */
	public void println(int i) {
		if (showOrig)
			orig.println(i);

		target.append(Integer.toString(i) + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(long l) {
		if (showOrig)
			orig.print(l);

		target.append(Long.toString(l));
		target.setCaretPosition(target.getText().length());
	}
	/** writes the value to the target
	 *
	 */
	public void println(long l) {
		if (showOrig)
			orig.println(l);

		target.append(Long.toString(l) + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(Object o) {
		if (showOrig)
			orig.print(o);

		target.append(o.toString());
		target.setCaretPosition(target.getText().length());
	}
	/** writes the value to the target
	 *
	 */
	public void println(Object o) {
		if (showOrig)
			orig.println(o);

		target.append(o.toString() + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void print(String s) {
		if (showOrig)
			orig.print(s);

		target.append(s);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void println(String s) {
		if (showOrig)
			orig.println(s);

		target.append(s + "\n"/*#Frozen*/);
		target.setCaretPosition(target.getText().length());
	}

	/** writes the value to the target
	 *
	 */
	public void println() {
		if (showOrig)
			orig.println();

		target.append(new String("\n"/*#Frozen*/));
		target.setCaretPosition(target.getText().length());
	}

}