现在它可以在我的按钮中获取我的图像，但是当我将图像的各个部分放在按钮中时出现了问题。
我认为错误在for循环中，我将图像的各个部分放在按钮
中我的照片 http://i.imgur.com/bUA9zSL.png http://i.imgur.com/Mws2YDI.jpg
有人可以看看我犯了错误的地方
我认为问题出在这一小段代码中
ImageIcon sid = new ImageIcon(Puzzle.class.getResource("1.jpg"));
source = sid.getImage();
width = sid.getIconWidth();
height = sid.getIconHeight();
/** Initialize button array */
for (int i=0; i<btArray.length;i++){
image = createImage(new FilteredImageSource(source.getSource(),
new CropImageFilter(i*width/15, i*height/15,
(width/4)+1, height/4)));
btArray[i]=new JButton(new ImageIcon(image));
}
这是完整的项目代码
import java.awt.BorderLayout;
import java.awt.Button;
import java.awt.Color;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.List;
import java.awt.MediaTracker;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.image.BufferedImage;
import java.awt.image.CropImageFilter;
import java.awt.image.FilteredImageSource;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;
import java.util.HashSet;
import java.util.LinkedList;
import java.util.PriorityQueue;
import java.util.Random;
import static javafx.scene.input.KeyCode.T;
import javax.imageio.ImageIO;
import javax.swing.*;
public class Puzzle extends JFrame implements ActionListener
{
/** JPanel variable */
private JPanel centerPanel = new JPanel();
private JPanel northPanel = new JPanel();
private JPanel southPanel = new JPanel();
/** JButton variable */
private JButton newGame = new JButton("New Game");
private JButton[] btArray = new JButton[15];
List Collections = new List(15);
/** JLabel variable */
private JLabel moves = new JLabel("Moves : ");
private JLabel label;
private Container mainPanel = this.getContentPane();
private int[][] pos;
private int count;
private String str;
private Image source, image;
int width, height;
public static <T> void shuffle(T[] array) {
Random random = new Random();
for (int i = array.length - 1 ; i >= 1; --i) {
int j = random.nextInt(i);
T temp = array[i];
array[i] = array[j];
array[j] = temp;
}
}
public Puzzle()
{
super("Puzzle Game");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
initUI();
}
public void initUI()
{
/* pos = new int[][]{
{0, 1, 2},
{3, 4, 5},
{6, 7, 8}
*/// };
pos = new int[][]{
{0, 1, 2, 3},
{4, 5, 6, 7},
{8, 9, 10, 11},
{12, 13, 14, 15},
};
ImageIcon sid = new ImageIcon(Puzzle.class.getResource("1.jpg"));
source = sid.getImage();
width = sid.getIconWidth();
height = sid.getIconHeight();
/** Initialize button array */
for (int i=0; i<btArray.length;i++){
image = createImage(new FilteredImageSource(source.getSource(),
new CropImageFilter(i*width/15, i*height/15,
(width/4)+1, height/4)));
btArray[i]=new JButton(new ImageIcon(image));
}
/** North Panel */
newGame.setFocusable(false);
newGame.addActionListener(this);
northPanel.setBackground(Color.red);
northPanel.add(newGame);
mainPanel.add(northPanel, BorderLayout.NORTH);
/** South Panel */
southPanel.add(moves);
southPanel.setBackground(Color.LIGHT_GRAY);
mainPanel.add(southPanel, BorderLayout.SOUTH);
/** Game Panel */
centerPanel.setLayout(new GridLayout(4, 4, 0, 0));
centerPanel.setBackground(Color.BLACK);
/** Add actionListeners to buttons */
for (int i = 0; i < 15; i++)
{
btArray[i].addActionListener(this);
}
newGame();
mainPanel.revalidate();
label = new JLabel("");
label.setBackground(Color.BLACK);
centerPanel.add(label);
mainPanel.add(centerPanel);
}
public void newGame()
{
count = 0;
shuffle(btArray);
for (int j = 14; j >= 0; j--)
{
centerPanel.remove(btArray[j]);
// JOptionPane.showMessageDialog(null, "pfff");
}
for (int j = 14; j >= 0; j--)
{
centerPanel.add(btArray[j]);
}
centerPanel.revalidate();
}
public boolean isFinished()
{
{
if ((btArray[0].getY() == btArray[1].getY() && btArray[1].getY() == btArray[2].getY()) && (btArray[3].getY() == btArray[4].getY() && btArray[4].getY() == btArray[5].getY())
&& (btArray[6].getY() == btArray[7].getY()))
{
if (btArray[0].getX() == btArray[3].getX() && btArray[3].getX() == btArray[6].getX()
&& btArray[1].getX() == btArray[4].getX() && btArray[4].getX() == btArray[7].getX()
&& btArray[2].getX() == btArray[5].getX())
{
return true;
}
}
return false;
}
}
public static void main(String[] args)
{
Puzzle puz = new Puzzle();
puz.setBounds(20, 20, 300, 325);
puz.setVisible(true);
}
public void actionPerformed(ActionEvent ae)
{
JButton button = (JButton) ae.getSource();
Dimension size = button.getSize();
if (isFinished())
{
JOptionPane.showMessageDialog(null, "You have Won the game");
}
if (ae.getSource() == newGame)
{
newGame();
}
int labelX = label.getX();
int labelY = label.getY();
int buttonX = button.getX();
int buttonY = button.getY();
int buttonPosX = buttonX / size.width;
int buttonPosY = buttonY / size.height;
int buttonIndex = pos[buttonPosY][buttonPosX];
if (labelX == buttonX && (labelY - buttonY) == size.height) {
int labelIndex = buttonIndex + 4;
centerPanel.remove(buttonIndex);
centerPanel.add(label, buttonIndex);
centerPanel.add(button, labelIndex);
centerPanel.validate();
count++;
}
if (labelX == buttonX && (labelY - buttonY) == -size.height) {
int labelIndex = buttonIndex - 4;
centerPanel.remove(labelIndex);
centerPanel.add(button, labelIndex);
centerPanel.add(label, buttonIndex);
centerPanel.validate();
count++;
}
if (labelY == buttonY && (labelX - buttonX) == size.width) {
int labelIndex = buttonIndex + 1;
centerPanel.remove(buttonIndex);
centerPanel.add(label, buttonIndex);
centerPanel.add(button, labelIndex);
centerPanel.validate();
count++;
}
if (labelY == buttonY && (labelX - buttonX) == -size.width) {
int labelIndex = buttonIndex - 1;
centerPanel.remove(buttonIndex);
centerPanel.add(label, labelIndex);
centerPanel.add(button, labelIndex);
centerPanel.validate();
count++;
}
str = String.valueOf(count);
moves.setText("Moves : " + str);
}
}
答案 0 :(得分：1)
任务是将图片分成16个相等的部分，第16个部分丢失。 下面给出了将图像分成16个相等部分的for循环。
for(int i=0;i<btArray.length;i++){
image = createImage(new FilteredImageSource(source.getSource(),
new CropImageFilter((i%4)*width/4, (i/4)*height/4, width/4, height/4)));
btArray[i]=new JButton(new ImageIcon(image));
}
CropImageFilter构造函数中的前两个参数是要提取的矩形顶部的x和y坐标，即我们从主图像中裁剪出的子图像。第3和第4个参数是裁剪图像的宽度和高度，应始终为width / 4和height / 4.