JConsole.java example

Explorer
openflexo-master
/*
 * (c) Copyright 2010-2011 AgileBirds
 *
 * This file is part of OpenFlexo.
 *
 * OpenFlexo is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * OpenFlexo is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenFlexo. If not, see <http://www.gnu.org/licenses/>.
 *
 */
package org.openflexo.swing;

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.util.Vector;
import java.util.logging.Logger;

import javax.swing.SwingUtilities;
import javax.swing.text.BadLocationException;
import javax.swing.text.Utilities;

import org.openflexo.jedit.JEditTextArea;
import org.openflexo.jedit.TextAreaDefaults;
import org.openflexo.jedit.TextAreaPainter;
import org.openflexo.toolbox.FontCst;

public class JConsole extends JEditTextArea {
	static final Logger logger = Logger.getLogger(JConsole.class.getPackage().getName());

	private boolean refreshOnlyInSwingEventDispatchingThread = true;

	public JConsole() {
		super();
		setTokenMarker(null);
		painter.setEOLMarkersPainted(false);
		painter.setInvalidLinesPainted(false);
		setFont(FontCst.CODE_FONT);
		setEditable(false);
	}

	public void clear() {
		setText("");
		colors.clear();
		refresh();
	}

	Vector<Color> colors = new Vector<Color>();

	public void log(String log, Color color) {
		int i = 0;
		int nextNL = 0;
		int nlCount = 0;
		while (nextNL > -1) {
			nextNL = log.indexOf("\n", i);
			if (nextNL > -1) {
				nlCount++;
				i = nextNL + 1;
			}
		}
		try {
			document.insertString(document.getLength(), log, null);
		} catch (BadLocationException e) {
			logger.warning("BadLocationException");
		}
		if (!log.isEmpty() && !log.endsWith("\n")) {
			try {
				document.insertString(document.getLength(), "\n", null);
			} catch (BadLocationException e) {
				logger.warning("BadLocationException");
			}
			nlCount++;
		}
		for (int j = 0; j < nlCount; j++) {
			colors.add(color);
		}
		if (colors.size() % paintOccurences == 0) {
			refresh();
		}
	}

	void refresh() {
		if (!SwingUtilities.isEventDispatchThread() && getRefreshOnlyInSwingEventDispatchingThread()) {
			SwingUtilities.invokeLater(new Runnable() {
				/**
				 * Overrides run
				 * 
				 * @see java.lang.Runnable#run()
				 */
				@Override
				public void run() {
					JConsole.this.refresh();
				}
			});
			return;
		}
		setCaretPosition(getDocument().getLength());
		paintImmediately(getVisibleRect());
	}

	private int paintOccurences = 10;

	@Override
	protected TextAreaPainter initTextAreaPainter(JEditTextArea textArea, TextAreaDefaults defaults) {
		return new JConsoleTextAreaPainter(this, defaults);
	}

	public class JConsoleTextAreaPainter extends TextAreaPainter {
		public JConsoleTextAreaPainter(JEditTextArea textArea, TextAreaDefaults defaults) {
			super(textArea, defaults);
		}

		@Override
		protected void paintPlainLine(Graphics gfx, int line, Font defaultFont, Color defaultColor, int x, int y) {
			if (line < colors.size()) {
				defaultColor = colors.elementAt(line);
			}

			paintHighlight(gfx, line, y);
			textArea.getLineText(line, currentLine);

			gfx.setFont(defaultFont);
			gfx.setColor(defaultColor);

			y += fm.getHeight();
			x = Utilities.drawTabbedText(currentLine, x, y, gfx, this, 0);

			if (eolMarkers) {
				gfx.setColor(eolMarkerColor);
				gfx.drawString(".", x, y);
			}
		}

	}

	public boolean getRefreshOnlyInSwingEventDispatchingThread() {
		return refreshOnlyInSwingEventDispatchingThread;
	}

	public void setRefreshOnlyInSwingEventDispatchingThread(boolean refreshOnlyInSwingEventDispatchingThread) {
		this.refreshOnlyInSwingEventDispatchingThread = refreshOnlyInSwingEventDispatchingThread;
	}

}