/*
* Jexer - Java Text User Interface
*
- * License: LGPLv3 or later
+ * The MIT License (MIT)
*
- * This module is licensed under the GNU Lesser General Public License
- * Version 3. Please see the file "COPYING" in this directory for more
- * information about the GNU Lesser General Public License Version 3.
+ * Copyright (C) 2016 Kevin Lamonte
*
- * Copyright (C) 2015 Kevin Lamonte
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public License
- * as published by the Free Software Foundation; either version 3 of
- * the License, or (at your option) any later version.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * This program 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 Lesser General Public
- * License along with this program; if not, see
- * http://www.gnu.org/licenses/, or write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
- * 02110-1301 USA
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* @author Kevin Lamonte [kevin.lamonte@gmail.com]
* @version 1
public final class SwingScreen extends Screen {
/**
- * If true, use double buffering thread.
+ * If true, use triple buffering thread.
*/
- private static final boolean doubleBuffer = true;
+ private static final boolean tripleBuffer = true;
/**
* Cursor style to draw.
private static final String FONTFILE = "terminus-ttf-4.39/TerminusTTF-Bold-4.39.ttf";
/**
- * The BufferStrategy object needed for double-buffering.
+ * The BufferStrategy object needed for triple-buffering.
*/
private BufferStrategy bufferStrategy;
// Save the text cell width/height
getFontDimensions();
- // Setup double-buffering
- if (SwingScreen.doubleBuffer) {
+ // Setup triple-buffering
+ if (SwingScreen.tripleBuffer) {
setIgnoreRepaint(true);
- createBufferStrategy(2);
+ createBufferStrategy(3);
bufferStrategy = getBufferStrategy();
}
}
@Override
public void flushPhysical() {
- if (reallyCleared) {
- // Really refreshed, do it all
- if (SwingScreen.doubleBuffer) {
- Graphics gr = frame.bufferStrategy.getDrawGraphics();
- frame.paint(gr);
- gr.dispose();
- frame.bufferStrategy.show();
- Toolkit.getDefaultToolkit().sync();
- } else {
- frame.repaint();
- }
+ /*
+ System.err.printf("flushPhysical(): reallyCleared %s dirty %s\n",
+ reallyCleared, dirty);
+ */
+
+ // If reallyCleared is set, we have to draw everything.
+ if ((frame.bufferStrategy != null) && (reallyCleared == true)) {
+ // Triple-buffering: we have to redraw everything on this thread.
+ Graphics gr = frame.bufferStrategy.getDrawGraphics();
+ frame.paint(gr);
+ gr.dispose();
+ frame.bufferStrategy.show();
+ // sync() doesn't seem to help the tearing for me.
+ // Toolkit.getDefaultToolkit().sync();
+ return;
+ } else if ((frame.bufferStrategy == null) && (reallyCleared == true)) {
+ // Repaint everything on the Swing thread.
+ frame.repaint();
return;
}
}
// Repaint the desired area
- // System.err.printf("REPAINT X %d %d Y %d %d\n", xMin, xMax,
- // yMin, yMax);
- if (SwingScreen.doubleBuffer) {
+ /*
+ System.err.printf("REPAINT X %d %d Y %d %d\n", xMin, xMax,
+ yMin, yMax);
+ */
+ if (frame.bufferStrategy != null) {
Graphics gr = frame.bufferStrategy.getDrawGraphics();
Rectangle bounds = new Rectangle(xMin, yMin, xMax - xMin,
yMax - yMin);
frame.paint(gr);
gr.dispose();
frame.bufferStrategy.show();
- Toolkit.getDefaultToolkit().sync();
+ // sync() doesn't seem to help the tearing for me.
+ // Toolkit.getDefaultToolkit().sync();
} else {
frame.repaint(xMin, yMin, xMax - xMin, yMax - yMin);
}