Official API for BoardPane with listener to react to user gestures.
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24 * Portions Copyrighted 2009 Jaroslav Tulach
26 package cz.xelfi.quoridor.visidor;
28 import cz.xelfi.quoridor.Board;
29 import cz.xelfi.quoridor.Fence;
30 import cz.xelfi.quoridor.Fence.Orientation;
31 import cz.xelfi.quoridor.IllegalPositionException;
32 import cz.xelfi.quoridor.Move;
33 import cz.xelfi.quoridor.Player;
34 import java.awt.Color;
35 import java.awt.Dimension;
36 import java.awt.EventQueue;
38 import java.awt.Graphics;
39 import java.awt.Graphics2D;
40 import java.awt.Rectangle;
41 import java.awt.event.MouseEvent;
42 import java.awt.event.MouseListener;
43 import java.awt.event.MouseMotionListener;
44 import java.awt.image.BufferedImage;
45 import javax.swing.JFrame;
46 import javax.swing.JPanel;
50 * @author Jaroslav Tulach <jtulach@netbeans.org>
52 final class Viewer extends JPanel implements MouseMotionListener, MouseListener {
54 private int fieldSize;
57 private Orientation lastOrientation;
58 private BoardPane pane;
64 private Viewer(Board b) {
70 * @param args the command line arguments
72 public static void main(String[] args) throws IllegalPositionException {
73 JFrame f = new JFrame();
74 f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
75 final BoardPane bp = new BoardPane();
76 class ApplyMove implements BoardListener {
77 public void boardChanged(BoardEvent ev) {
78 Move m = ev.getMove();
81 bp.setBoard(bp.getBoard().apply(m));
82 } catch (IllegalPositionException ex) {
88 bp.addBoardListener(new ApplyMove());
96 public Dimension getPreferredSize() {
97 return new Dimension(450, 450);
101 protected void paintComponent(Graphics gg) {
102 assert EventQueue.isDispatchThread();
104 fieldSize = Math.min(getSize().width, getSize().height) / 9;
105 int fifth = fieldSize / 10;
106 Graphics2D g = (Graphics2D) gg;
108 xdelta = (getSize().width - fieldSize * 9) / 2;
109 ydelta = (getSize().height - fieldSize * 9) / 2;
111 g.translate(xdelta, ydelta);
113 g.setColor(Color.lightGray);
114 for (int i = 0; i < 9; i++) {
115 for (int j = 0; j < 9; j++) {
116 final Rectangle r = new Rectangle(i * fieldSize, j * fieldSize, fieldSize, fieldSize);
117 g.fillRect(r.x + fifth, r.y + fifth, r.width - fifth * 2, r.height - fifth * 2);
122 g.setColor(Color.BLACK);
123 for (Fence f : board.getFences()) {
124 int column = (f.getColumn() - 'A') + 1;
125 int row = 9 - f.getRow();
126 Orientation orient = f.getOrientation();
127 drawFence(orient, column, row, g, true);
131 Color[] colors = { Color.WHITE, Color.BLACK, Color.ORANGE, Color.MAGENTA };
132 for (Player p : board.getPlayers()) {
133 int column = p.getColumn();
134 int row = 8 - p.getRow();
135 final boolean isCurrent = p == board.getCurrentPlayer();
136 final Color currentColor = colors[cnt];
137 drawPlayer(g, column, row, currentColor, isCurrent, false);
141 g.setColor(Color.BLACK);
142 final Font f = new Font("Monospace", Font.BOLD, fifth * 2);
144 for (int i = 0; i < 8; i++) {
145 final char ch = (char) ('A' + i);
146 g.drawString(Character.toString(ch), i * fieldSize + fieldSize - fifth, fifth + f.getSize() - f.getBaselineFor(ch));
148 for (int i = 0; i < 8; i++) {
149 String s = "" + (8 - i);
150 g.drawString(s, fifth, i * fieldSize + fieldSize - fifth + f.getSize() - f.getBaselineFor(s.charAt(0)));
154 private void drawPlayer(Graphics2D g, int column, int row, final Color currentColor, final boolean isCurrent, boolean allowedMove) {
155 int fifth = fieldSize / 10;
156 int diametr = fieldSize - fifth * 4;
157 final Rectangle r = new Rectangle(
158 column * fieldSize + 2 * fifth,
159 row * fieldSize + 2 * fifth,
163 if (currentColor == null) {
165 g.setColor(Color.BLACK);
166 g.drawOval(r.x, r.y, r.width, r.height);
168 g.drawLine(r.x, r.y, r.x + r.width, r.y + r.height);
169 g.drawLine(r.x, r.y + r.height, r.x + r.width, r.y);
172 g.setColor(currentColor);
173 g.fillOval(r.x, r.y, r.width, r.height);
175 g.setColor(Color.lightGray);
176 g.fillOval(r.x + r.width / 3, r.y + r.height / 3, r.width / 3, r.height / 3);
181 private void drawFence(Orientation orient, int column, int row, Graphics2D g, boolean fill) throws IllegalStateException {
182 int fifth = fieldSize / 10;
185 case HORIZONTAL: w = fieldSize - fifth; h = fifth; break;
186 case VERTICAL: w = fifth; h = fieldSize - fifth; break;
187 default: throw new IllegalStateException();
189 Rectangle r = new Rectangle(
190 column * fieldSize - w,
202 public void mouseDragged(MouseEvent e) {
205 public void mouseMoved(MouseEvent e) {
206 redrawCurrentMove(e);
209 private Move redrawCurrentMove(MouseEvent e) {
210 int x = Math.round(((float)(e.getX() - xdelta)) / fieldSize);
211 int y = Math.round(((float)(e.getY() - ydelta)) / fieldSize);
212 if (x <= 0 || x >= 9) {
215 if (y <= 0 || y >= 9) {
219 BufferedImage img = new BufferedImage(getWidth(), getHeight(), BufferedImage.TYPE_INT_ARGB);
220 final Graphics2D d2 = img.createGraphics();
221 d2.setBackground(getBackground());
222 d2.clearRect(0, 0, getWidth(), getHeight());
226 int dx = (e.getX() - xdelta) % fieldSize;
227 int dy = (e.getY() - ydelta) % fieldSize;
229 int fifth = fieldSize / 10;
230 boolean outOfX = dx > fifth && dx < fieldSize - fifth;
231 boolean outOfY = dy > fifth && dy < fieldSize - fifth;
232 if (outOfX && outOfY) {
233 x = (e.getX() - xdelta) / fieldSize;
234 y = (e.getY() - ydelta) / fieldSize;
235 Move m = board.findMove(board.getCurrentPlayer(), x, 8 - y);
237 drawPlayer(d2, x, y, null, false, false);
239 drawPlayer(d2, x, y, null, false, true);
241 getGraphics().drawImage(img, 0, 0, null);
244 if (!outOfX && !outOfY) {
245 if (lastOrientation == null) {
250 lastOrientation = Orientation.HORIZONTAL;
252 lastOrientation = Orientation.VERTICAL;
258 m = Move.fence((char)('A' + x - 1), 9 - y, lastOrientation);
259 Board newBoard = board.apply(m);
260 drawFence(lastOrientation, x, y, d2, true);
261 } catch (IllegalPositionException ex) {
263 drawFence(lastOrientation, x, y, d2, false);
266 getGraphics().drawImage(img, 0, 0, null);
270 public void mouseClicked(MouseEvent e) {
273 public void mousePressed(MouseEvent e) {
274 Move m = redrawCurrentMove(e);
281 public void mouseReleased(MouseEvent e) {
284 public void mouseEntered(MouseEvent e) {
287 public void mouseExited(MouseEvent e) {
290 final void setBoard(Board b) {
297 final Board getBoard() {
301 final void enableListeners(boolean editable) {
303 addMouseMotionListener(this);
304 addMouseListener(this);
306 removeMouseListener(this);
307 removeMouseMotionListener(this);
311 final void moveListener(BoardPane pane) {