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CardGameGUI.java
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import java.awt.Point;
import java.awt.Graphics;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Color;
import java.awt.Toolkit;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseEvent;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.ImageIcon;
import java.net.URL;
import java.util.List;
import java.util.ArrayList;
/**
* This class provides a GUI for solitaire games related to Elevens.
*/
public class CardGameGUI extends JFrame implements ActionListener {
/** Height of the game frame. */
private static final int DEFAULT_HEIGHT = 302;
/** Width of the game frame. */
private static final int DEFAULT_WIDTH = 800;
/** Width of a card. */
private static final int CARD_WIDTH = 73;
/** Height of a card. */
private static final int CARD_HEIGHT = 97;
/** Row (y coord) of the upper left corner of the first card. */
private static final int LAYOUT_TOP = 30;
/** Column (x coord) of the upper left corner of the first card. */
private static final int LAYOUT_LEFT = 30;
/** Distance between the upper left x coords of
* two horizonally adjacent cards. */
private static final int LAYOUT_WIDTH_INC = 100;
/** Distance between the upper left y coords of
* two vertically adjacent cards. */
private static final int LAYOUT_HEIGHT_INC = 125;
/** y coord of the "Replace" button. */
private static final int BUTTON_TOP = 30;
/** x coord of the "Replace" button. */
private static final int BUTTON_LEFT = 570;
/** Distance between the tops of the "Replace" and "Restart" buttons. */
private static final int BUTTON_HEIGHT_INC = 50;
/** y coord of the "n undealt cards remain" label. */
private static final int LABEL_TOP = 160;
/** x coord of the "n undealt cards remain" label. */
private static final int LABEL_LEFT = 540;
/** Distance between the tops of the "n undealt cards" and
* the "You lose/win" labels. */
private static final int LABEL_HEIGHT_INC = 35;
/** The board (Board subclass). */
private Board board;
/** The main panel containing the game components. */
private JPanel panel;
/** The Replace button. */
private JButton replaceButton;
/** The Restart button. */
private JButton restartButton;
/** The "number of undealt cards remain" message. */
private JLabel statusMsg;
/** The "you've won n out of m games" message. */
private JLabel totalsMsg;
/** The card displays. */
private JLabel[] displayCards;
/** The win message. */
private JLabel winMsg;
/** The loss message. */
private JLabel lossMsg;
/** The coordinates of the card displays. */
private Point[] cardCoords;
/** kth element is true iff the user has selected card #k. */
private boolean[] selections;
/** The number of games won. */
private int totalWins;
/** The number of games played. */
private int totalGames;
/**
* Initialize the GUI.
* @param gameBoard is a <code>Board</code> subclass.
*/
public CardGameGUI(Board gameBoard) {
board = gameBoard;
totalWins = 0;
totalGames = 0;
// Initialize cardCoords using 5 cards per row
cardCoords = new Point[board.size()];
int x = LAYOUT_LEFT;
int y = LAYOUT_TOP;
for (int i = 0; i < cardCoords.length; i++) {
cardCoords[i] = new Point(x, y);
if (i % 5 == 4) {
x = LAYOUT_LEFT;
y += LAYOUT_HEIGHT_INC;
} else {
x += LAYOUT_WIDTH_INC;
}
}
selections = new boolean[board.size()];
initDisplay();
setDefaultCloseOperation(EXIT_ON_CLOSE);
repaint();
}
/**
* Run the game.
*/
public void displayGame() {
java.awt.EventQueue.invokeLater(new Runnable() {
public void run() {
setVisible(true);
}
});
}
/**
* Draw the display (cards and messages).
*/
public void repaint() {
for (int k = 0; k < board.size(); k++) {
String cardImageFileName =
imageFileName(board.cardAt(k), selections[k]);
URL imageURL = getClass().getResource(cardImageFileName);
if (imageURL != null) {
ImageIcon icon = new ImageIcon(imageURL);
displayCards[k].setIcon(icon);
displayCards[k].setVisible(true);
} else {
throw new RuntimeException(
"Card image not found: \"" + cardImageFileName + "\"");
}
}
statusMsg.setText(board.deckSize()
+ " undealt cards remain.");
statusMsg.setVisible(true);
totalsMsg.setText("You've won " + totalWins
+ " out of " + totalGames + " games.");
totalsMsg.setVisible(true);
pack();
panel.repaint();
}
/**
* Initialize the display.
*/
private void initDisplay() {
panel = new JPanel() {
public void paintComponent(Graphics g) {
super.paintComponent(g);
}
};
// If board object's class name follows the standard format
// of ...Board or ...board, use the prefix for the JFrame title
String className = board.getClass().getSimpleName();
int classNameLen = className.length();
int boardLen = "Board".length();
String boardStr = className.substring(classNameLen - boardLen);
if (boardStr.equals("Board") || boardStr.equals("board")) {
int titleLength = classNameLen - boardLen;
setTitle(className.substring(0, titleLength));
}
// Calculate number of rows of cards (5 cards per row)
// and adjust JFrame height if necessary
int numCardRows = (board.size() + 4) / 5;
int height = DEFAULT_HEIGHT;
if (numCardRows > 2) {
height += (numCardRows - 2) * LAYOUT_HEIGHT_INC;
}
this.setSize(new Dimension(DEFAULT_WIDTH, height));
panel.setLayout(null);
panel.setPreferredSize(
new Dimension(DEFAULT_WIDTH - 20, height - 20));
displayCards = new JLabel[board.size()];
for (int k = 0; k < board.size(); k++) {
displayCards[k] = new JLabel();
panel.add(displayCards[k]);
displayCards[k].setBounds(cardCoords[k].x, cardCoords[k].y,
CARD_WIDTH, CARD_HEIGHT);
displayCards[k].addMouseListener(new MyMouseListener());
selections[k] = false;
}
replaceButton = new JButton();
replaceButton.setText("Replace");
panel.add(replaceButton);
replaceButton.setBounds(BUTTON_LEFT, BUTTON_TOP, 100, 30);
replaceButton.addActionListener(this);
restartButton = new JButton();
restartButton.setText("Restart");
panel.add(restartButton);
restartButton.setBounds(BUTTON_LEFT, BUTTON_TOP + BUTTON_HEIGHT_INC,
100, 30);
restartButton.addActionListener(this);
statusMsg = new JLabel(
board.deckSize() + " undealt cards remain.");
panel.add(statusMsg);
statusMsg.setBounds(LABEL_LEFT, LABEL_TOP, 250, 30);
winMsg = new JLabel();
winMsg.setBounds(LABEL_LEFT, LABEL_TOP + LABEL_HEIGHT_INC, 200, 30);
winMsg.setFont(new Font("SansSerif", Font.BOLD, 25));
winMsg.setForeground(Color.GREEN);
winMsg.setText("You win!");
panel.add(winMsg);
winMsg.setVisible(false);
lossMsg = new JLabel();
lossMsg.setBounds(LABEL_LEFT, LABEL_TOP + LABEL_HEIGHT_INC, 200, 30);
lossMsg.setFont(new Font("SanSerif", Font.BOLD, 25));
lossMsg.setForeground(Color.RED);
lossMsg.setText("Sorry, you lose.");
panel.add(lossMsg);
lossMsg.setVisible(false);
totalsMsg = new JLabel("You've won " + totalWins
+ " out of " + totalGames + " games.");
totalsMsg.setBounds(LABEL_LEFT, LABEL_TOP + 2 * LABEL_HEIGHT_INC,
250, 30);
panel.add(totalsMsg);
if (!board.anotherPlayIsPossible()) {
signalLoss();
}
pack();
getContentPane().add(panel);
getRootPane().setDefaultButton(replaceButton);
panel.setVisible(true);
}
/**
* Deal with the user clicking on something other than a button or a card.
*/
private void signalError() {
Toolkit t = panel.getToolkit();
t.beep();
}
/**
* Returns the image that corresponds to the input card.
* Image names have the format "[Rank][Suit].GIF" or "[Rank][Suit]S.GIF",
* for example "aceclubs.GIF" or "8heartsS.GIF". The "S" indicates that
* the card is selected.
*
* @param c Card to get the image for
* @param isSelected flag that indicates if the card is selected
* @return String representation of the image
*/
private String imageFileName(Card c, boolean isSelected) {
String str = "cards/";
if (c == null) {
return "cards/back1.GIF";
}
str += c.rank() + c.suit();
if (isSelected) {
str += "S";
}
str += ".GIF";
return str;
}
/**
* Respond to a button click (on either the "Replace" button
* or the "Restart" button).
* @param e the button click action event
*/
public void actionPerformed(ActionEvent e) {
if (e.getSource().equals(replaceButton)) {
// Gather all the selected cards.
List<Integer> selection = new ArrayList<Integer>();
for (int k = 0; k < board.size(); k++) {
if (selections[k]) {
selection.add(new Integer(k));
}
}
// Make sure that the selected cards represent a legal replacement.
if (!board.isLegal(selection)) {
signalError();
return;
}
for (int k = 0; k < board.size(); k++) {
selections[k] = false;
}
// Do the replace.
board.replaceSelectedCards(selection);
if (board.isEmpty()) {
signalWin();
} else if (!board.anotherPlayIsPossible()) {
signalLoss();
}
repaint();
} else if (e.getSource().equals(restartButton)) {
board.newGame();
getRootPane().setDefaultButton(replaceButton);
winMsg.setVisible(false);
lossMsg.setVisible(false);
if (!board.anotherPlayIsPossible()) {
signalLoss();
lossMsg.setVisible(true);
}
for (int i = 0; i < selections.length; i++) {
selections[i] = false;
}
repaint();
} else {
signalError();
return;
}
}
/**
* Display a win.
*/
private void signalWin() {
getRootPane().setDefaultButton(restartButton);
winMsg.setVisible(true);
totalWins++;
totalGames++;
}
/**
* Display a loss.
*/
private void signalLoss() {
getRootPane().setDefaultButton(restartButton);
lossMsg.setVisible(true);
totalGames++;
}
/**
* Receives and handles mouse clicks. Other mouse events are ignored.
*/
private class MyMouseListener implements MouseListener {
/**
* Handle a mouse click on a card by toggling its "selected" property.
* Each card is represented as a label.
* @param e the mouse event.
*/
public void mouseClicked(MouseEvent e) {
for (int k = 0; k < board.size(); k++) {
if (e.getSource().equals(displayCards[k])
&& board.cardAt(k) != null) {
selections[k] = !selections[k];
repaint();
return;
}
}
signalError();
}
/**
* Ignore a mouse exited event.
* @param e the mouse event.
*/
public void mouseExited(MouseEvent e) {
}
/**
* Ignore a mouse released event.
* @param e the mouse event.
*/
public void mouseReleased(MouseEvent e) {
}
/**
* Ignore a mouse entered event.
* @param e the mouse event.
*/
public void mouseEntered(MouseEvent e) {
}
/**
* Ignore a mouse pressed event.
* @param e the mouse event.
*/
public void mousePressed(MouseEvent e) {
}
}
}