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我有一個關於我的撲克計算器的佈局問題。我的JFrame存在頂部面板與網格佈局和中心面板與邊界佈局。該中心面板在BorderLayout.CENTER和中添加了JLabel以及BorderLayout.CENTER中的圖像和JPanel。 BorderLayout.NORTH中的面板有兩個JButton。現在我想在JLabel之上放置一個JButton，但我不能這樣做centerPanel.add(boardCard1.BorderLayout.CENTER);，因爲我已經爲JLabel做了這個。我怎樣才能解決這個問題，並將Cards放在桌子的中央？我只在代碼片段中加入了aceClubs Card，以提供更好的可讀性。JButton在JLabel之上
public class OddsCalculator extends JFrame{
JPanel topPanel;
JLabel tablePicture;
JPanel centerPanel;
//ImagePanel panel = new ImagePanel(new ImageIcon(this.getClass().getResource("/images/pokertable.png")).getImage());
JPanel centerPanelNorth;
Card aceClubs;
Card playerOneCardOne;
Card playerOneCardTwo;
Card playerTwoCardOne;
Card playerTwoCardTwo;
Card playerCardSpotTarget;
Card playerCardSpotSender;
Player player1=new Player();
Player player2=new Player();
Card boardCard1=new Card();
Card boardCard2=new Card();
Card boardCard3=new Card();
Card boardCard4=new Card();
Board board=new Board();
public OddsCalculator(){
initUI();
}
public void initUI() {
//cardsPanel=new JPanel(new GridLayout(4,13,0,0));
setLayout(new BorderLayout());
topPanel = new JPanel(new GridLayout(4,13,0,0));
centerPanel=new JPanel(new BorderLayout());
tablePicture = new JLabel(new ImageIcon(this.getClass().getResource(Constants.POKERTABLE_ICON)));
centerPanelNorth=new JPanel();
aceClubs=new Card();
playerOneCardOne=new Card();
playerOneCardTwo=new Card();
playerTwoCardOne=new Card();
playerTwoCardTwo=new Card();
boardCard1=new Card();
boardCard2=new Card();
boardCard3=new Card();
board=new Board();
//setLayout(new FlowLayout(FlowLayout.LEFT));
topPanel.setPreferredSize(new Dimension(1200,450));//was 1000/600
getContentPane().add(topPanel,BorderLayout.NORTH);
//setSize(1000,1600);
setDefaultCloseOperation(EXIT_ON_CLOSE);
aceClubs.suit=Constants.CARD_SUIT_CLUBS;
aceClubs.kind=Constants.CARD_KIND_ACE;
aceClubs.iconPath=Constants.ACE_CLUBS_ICON;
aceClubs.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(aceClubs.iconPath)));
aceClubs.setBorder(null);
aceClubs.setContentAreaFilled(false);
aceClubs.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
MouseClicked(evt);
}
});
topPanel.add(aceClubs,BorderLayout.PAGE_START);
getContentPane().add(centerPanel,BorderLayout.CENTER); //was centerpanel
//PLAYER 1 CARD SPOTS
playerOneCardOne.iconPath=Constants.CARD_BACKSIDE;
playerOneCardOne.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(playerOneCardOne.iconPath)));
playerOneCardOne.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
playerOneCardOne.setBorderPainted(false);
playerOneCardOne.setContentAreaFilled(false);
playerOneCardOne.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
//centerPanel.add(playerOneCardOne,BorderLayout.WEST); //was centerpanel
playerOneCardTwo.iconPath=Constants.CARD_BACKSIDE;
playerOneCardTwo.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(playerOneCardTwo.iconPath)));
playerOneCardTwo.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
playerOneCardTwo.setBorderPainted(false);
playerOneCardTwo.setContentAreaFilled(false);
playerOneCardTwo.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
//centerPanel.add(playerOneCardTwo,BorderLayout.EAST);
//BOARD CARD SPOTS
boardCard1.iconPath=Constants.CARD_BACKSIDE;
boardCard1.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(boardCard1.iconPath)));
boardCard1.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
boardCard1.setBorderPainted(false);
boardCard1.setContentAreaFilled(false);
boardCard1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
boardCard1.boardPosition=1;
// centerPanel.add(boardCard1);
boardCard2.iconPath=Constants.CARD_BACKSIDE;
boardCard2.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(boardCard2.iconPath)));
boardCard2.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
boardCard2.setBorderPainted(false);
boardCard2.setContentAreaFilled(false);
boardCard2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
//centerPanel.add(boardCard1,SwingConstants.CENTER);
boardCard2.boardPosition=2;
//centerPanel.add(boardCard2);
boardCard3.iconPath=Constants.CARD_BACKSIDE;
boardCard3.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(boardCard3.iconPath)));
boardCard3.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
boardCard3.setBorderPainted(false);
boardCard3.setContentAreaFilled(false);
boardCard3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
//centerPanel.add(boardCard1);
boardCard3.boardPosition=3;
//centerPanel.add(boardCard3);
boardCard4.iconPath=Constants.CARD_BACKSIDE;
boardCard4.setIcon(new javax.swing.ImageIcon(this.getClass().getResource(boardCard4.iconPath)));
boardCard4.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0), 5));
boardCard4.setBorderPainted(false);
boardCard4.setContentAreaFilled(false);
boardCard4.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
PlayerOneMouseClicked(evt);
}
});
//centerPanel.add(boardCard1,SwingConstants.CENTER);
//boardCard4.boardPosition=4
//centerPanel.add(boardCard4);
centerPanel.add(tablePicture,BorderLayout.CENTER); //TABLE
centerPanel.add(centerPanelNorth,BorderLayout.NORTH);
centerPanelNorth.add(playerOneCardOne);
centerPanelNorth.add(playerOneCardTwo);
//How to add for example boardCard1 on top of the table?
}
private void MouseClicked(java.awt.event.MouseEvent evt) {
//JButton b=(JButton)evt.getSource();
playerCardSpotSender=(Card)evt.getSource();
System.out.println(playerCardSpotSender.suit+" "+playerCardSpotSender.kind);
if (playerCardSpotTarget != null && playerCardSpotTarget.isBorderPainted()) {
playerCardSpotSender.setLocation(playerCardSpotTarget.getLocation());
System.out.println(playerCardSpotTarget.getLocation());
}
}
private void PlayerOneMouseClicked(java.awt.event.MouseEvent evt){
//JButton b=(JButton)evt.getSource();
playerCardSpotTarget=(Card)evt.getSource();
if(playerCardSpotTarget.isBorderPainted()){
playerCardSpotTarget.setBorderPainted(false);
}
else{
playerCardSpotTarget.setBorderPainted(true);
}
}
public static void main(String[] args) {
OddsCalculator oc=new OddsCalculator();
oc.setVisible(true);
oc.pack();
}
}
Card.java
public class Card extends JButton{
int suit;
int kind;
boolean known;
String iconPath;
Integer boardPosition;
}
佈局的時刻：
**編輯：** 我如何與OverlayLayout中心位置的按鈕？
[將LayoutManager設置爲JLabel]（http://stackoverflow.com/questions/8575641/how-returns-xxxsize-from-jcomponents-added-to-the-jlabel） – mKorbel
@mKorbel如何在我的情況下使用它？ – Sybren
看起來像通過使用GBC – mKorbel