我正在尝试创建一个freecell游戏，我还没有实现逻辑，因为我在布局方面遇到了麻烦。
我无法解决的主要问题是JFrame按照绘制的顺序对Z卷索引值进行排序，因此绘制的第一张卡具有最高的Z-index。
我正在尝试使z索引可更改。
我使用的是null布局 - 教授指示说不使用任何管理器或外部布局帮助。 （啊）
尝试解决方案：
我尝试使用JLayeredPane，实例化一个窗格，将其边界设置为恰好适合JFrame，将我的所有卡添加到Layered窗格，然后将窗格添加到JFrame - 但这不起作用。
我尝试使用＆＃34; setComponentZOrder（comp，index）＆＃34;但这也没有改变轴。
以下是我的代码。在null布局上没有办法做到这一点吗？
如果您尝试运行该程序，则此oneDrive链接包含卡片图像。
主：
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.io.File;
import java.util.*;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class FreeCellGame extends JFrame implements MouseListener, MouseMotionListener
{
public ArrayList<String> randomizedKeys = new ArrayList<String>();
public HashMap<String, CardImagePanel> allCards;
public static void main(String[] args)
{
FreeCellGame projectBoard = new FreeCellGame();
projectBoard.allCards = new HashMap<String, CardImagePanel>();
projectBoard.setSize(1218,800);
projectBoard.setLayout(null);
projectBoard.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
projectBoard.allCards = projectBoard.loadCardObjects(projectBoard.allCards);
projectBoard = projectBoard.placeCardsOnBoard(projectBoard);
projectBoard = addshapes(projectBoard);
projectBoard.repaint();
projectBoard.revalidate();
projectBoard.setVisible(true);
}
private static FreeCellGame addshapes(FreeCellGame projectBoard) {
int xPos = 0;
int yPos = 50;
JLabel foundations = new JLabel("Foundations");
foundations.setBounds(790, 50, 300, 50);
foundations.setFont(new Font("Courier New", Font.BOLD, 30));
projectBoard.add(foundations);
JLabel freeCells = new JLabel("Free Cells");
freeCells.setBounds(210, 200, 300, 50);
freeCells.setFont(new Font("Courier New", Font.BOLD, 30));
projectBoard.add(freeCells);
for(int i = 0; i < 8; i++)
{
JPanel rect = new JPanel();
rect.setBorder(BorderFactory.createLineBorder(Color.black));
rect.setBounds(xPos, yPos, 150, 150);
projectBoard.add(rect);
xPos+=150;
if(i == 3)
{
yPos = 100;
}
}
return projectBoard;
}
private HashMap<String, CardImagePanel> loadCardObjects(HashMap<String, CardImagePanel> allCards)
{
File folder = new File("C:/Users/chris/Documents/GitHub/EclipseProjects/C585-FreeCell/src/images");
File[] listOfFiles = folder.listFiles();
allCards = new HashMap<String, CardImagePanel>();
for (File file : listOfFiles) {
if (file.isFile()) {
String hashKey = file.getName();
randomizedKeys.add(hashKey);
CardImagePanel currentImage = new CardImagePanel(file);
currentImage.setPreferredSize(new Dimension(157, 157));//5px on both sides as margin
allCards.put(hashKey, currentImage);
allCards.get(hashKey).addMouseListener(allCards.get(hashKey));
allCards.get(hashKey).addMouseMotionListener(allCards.get(hashKey));
}
}
Collections.shuffle(randomizedKeys);
return allCards;
}
private FreeCellGame placeCardsOnBoard(FreeCellGame projectBoard)
{
int x = 0;
int y = 540;
int count = 0;
for(String newRandomKey : randomizedKeys)
{
System.out.println(newRandomKey);
if(count == 7 || count == 14 || count == 21)
{
x+=150;
y=540;
}
else if( count == 28 || count == 34 || count == 40 || count == 46)
{
x+=150;
y=500;
}
else if (count != 0)
{
y-=40;
}
allCards.get(newRandomKey).setBounds(x, y, 150, 150);
projectBoard.add(allCards.get(newRandomKey));
count++;
}
return projectBoard;
}
@Override
public void mouseDragged(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
// ((CardImagePanel) e.getSource()).setComponentZOrder(projectBoard, 5000);
}
@Override
public void mouseEntered(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent arg0) {
// TODO Auto-generated method stub
}
}
JPanel Class：
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JPanel;
@SuppressWarnings("serial")
public class CardImagePanel extends JPanel implements MouseListener, MouseMotionListener
{
private BufferedImage picture;
private char cardType;
private int cardNum;
public CardImagePanel(File newImageFile)
{
try {
picture = ImageIO.read(newImageFile);
} catch (IOException e){
e.printStackTrace();
}
cardType = newImageFile.getName().charAt(0);
String tempString = newImageFile.getName();
cardNum = Integer.parseInt(tempString.substring(1,tempString.lastIndexOf('.')));
}
public void paintComponent(Graphics g) {
super.paintComponent(g);
g.drawImage(picture, 0, 0, 150, 150, this);
}
public BufferedImage getPicture() {
return picture;
}
public char getCardType() {
return cardType;
}
public int getCardNum() {
return cardNum;
}
@Override
public void mouseDragged(MouseEvent e) {
this.setBounds(e.getX() + this.getX()-75, e.getY() + this.getY()-75, 150, 150);
}
@Override
public void mouseMoved(MouseEvent arg0) {
// TODO Auto-generated method stub
}
@Override
public void mouseClicked(MouseEvent e) {
}
@Override
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
}
@Override
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
}
答案 0 :(得分：2)
我使用的是null布局 - 教授指示说不使用任何管理器或外部布局帮助。 （啊）
那么基本上你需要编写自己的布局管理器。
以下是我的代码。在null布局上没有办法做到这一点吗？
null布局对Z-Ordering的工作方式没有影响。 Z-Ordering将自动为您完成。关键是您向面板添加组件的顺序，以便您获得所需的Z-Ordering。
我正在尝试使z索引可更改。
向面板添加组件将影响Z-Order。
查看Overlap Layout这是专门为此设计的布局管理器。我知道您无法使用布局管理器，但更好地了解Z-Order的工作方式将允许您简单地编写代码。
例如，查看下面的简单代码。只需使用您使用哪种add(...)方法将卡片添加到面板中，您就可以控制Z-Order为您带来优势：
import java.awt.*;
import java.util.*;
import javax.swing.*;
public class SSCCE extends JPanel
{
ArrayList<JLabel> cards = new ArrayList<JLabel>();
public SSCCE()
{
setLayout( null );
cards.add( createCard("1", Color.RED) );
cards.add( createCard("2", Color.GREEN) );
cards.add( createCard("3", Color.BLUE) );
cards.add( createCard("4", Color.YELLOW) );
// This would be your first natural attempt (but it doesn't work)
for (int i = 0; i < cards.size(); i++)
add( cards.get(i) );
// This affects the Z-Order to do what you want
// for (int i = 0; i < cards.size(); i++)
// add(cards.get(i), 0);
}
public JLabel createCard(String text, Color background)
{
JLabel label = new JLabel(text);
label.setOpaque( true );
label.setBackground( background );
label.setSize(30, 70);
label.setLocation((cards.size() + 1) * 20 , 20);
return label;
}
private static void createAndShowGUI()
{
JFrame frame = new JFrame("SSCCE");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(new SSCCE());
frame.setLocationByPlatform( true );
frame.setSize(200, 200);
frame.setVisible( true );
}
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
createAndShowGUI();
}
});
}
}
答案 1 :(得分：1)
我不经常支持<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<soapenv:Header>
<wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" soapenv:mustUnderstand="1">
<wsu:Timestamp wsu:Id="TS-4">
<wsu:Created>2015-12-09T07:15:21Z</wsu:Created>
<wsu:Expires>2015-12-09T09:38:41Z</wsu:Expires>
</wsu:Timestamp>
<wsse:UsernameToken wsu:Id="UsernameToken-3">
<wsse:Username>admin</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">admin</wsse:Password>
<wsse:Nonce EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary">byWKVY4stEATvTqaoNMswQ==</wsse:Nonce>
<wsu:Created>2015-12-09T07:15:21.304Z</wsu:Created>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>
<soapenv:Body/>
</soapenv:Envelope>
布局，我认为有一小部分用例非常有用，但是，你认为这是其中一种情况，那么我强烈推荐使用null，因为它允许您控制组件的z排序。
有关详细信息，请查看How to Use Layered Panes