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The Java 3D API Specification (2nd Edition)
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The Java 3D API Specification (2nd Edition).iso
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FourByFour
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Canvas2D.java
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2000-04-28
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/*
* @(#)Canvas2D.java 1.5 00/02/10 13:13:48
*
* Copyright (c) 1996-2000 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
import java.awt.*;
import java.awt.event.*;
import java.awt.image.*;
/**
* Class: Canvas2D
*
* Description: Used to respond to mouse events in the 2D window.
*
* Version: 1.0
*
*/
class Canvas2D extends Canvas implements MouseListener {
Image backbuffer; // Backbuffer image
Graphics gc; // Graphics context of backbuffer
Board board; // Game board
Canvas2D(Board board) {
this.board = board;
}
public void setBuffer(Image backbuffer) {
this.backbuffer = backbuffer;
gc = backbuffer.getGraphics();
}
public void update(Graphics g) {
paint(g);
}
public void paint(Graphics g) {
if (board != null) {
board.render2D(gc);
g.drawImage(backbuffer, 0, 0, this);
}
}
public void mousePressed(MouseEvent e) {
board.checkSelection2D(e.getX(), e.getY(), 1);
repaint();
}
public void mouseClicked(MouseEvent e) {}
public void mouseReleased(MouseEvent e) {}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
}