Question

我为国际象棋应用程序创建了一个桌面窗格和内部框架。外窗具有新游戏等菜单。它非常棒。但我面临的问题是内部框架中的鼠标事件。因为我的内部框架是我的棋盘棋子。当我没有使用具有内部框架的桌面窗格时，鼠标事件正在工作，这只是游戏的简单框架方法。当我将代码切换为使用带有内部框架的桌面窗格时，我的鼠标事件停止工作。

我希望我的问题对每个人都清楚，并希望得到一个有用的答案。这是源代码：

frame是国际象棋游戏所在的内部框架。桌面窗格应位于框架上方，并具有新游戏的菜单栏并退出。

 public void createFrame() {

    JInternalFrame frame = new JInternalFrame();

这是我的棋盘

JLayeredPane layeredPane;
JPanel chessBoard;
JLabel chessPiece;
int xAdjustment;
int yAdjustment;

Dimension boardSize = new Dimension(400, 400);
//FlowLayout flow=new FlowLayout();
layeredPane = new JLayeredPane();
getContentPane().add(layeredPane);
layeredPane.setPreferredSize(boardSize);
layeredPane.addMouseListener(this);
layeredPane.addMouseMotionListener(this);
chessBoard = new JPanel();
layeredPane.add(chessBoard, JLayeredPane.DEFAULT_LAYER);
chessBoard.setLayout(new GridLayout(8, 8));
chessBoard.setPreferredSize(boardSize);
chessBoard.setBounds(0, 0, boardSize.width, boardSize.height);
for (int i = 0; i < 64; i++) {
    JPanel square = new JPanel(new BorderLayout());
    chessBoard.add(square);
    int row = (i / 8) % 2;
    if (row == 0) {
        square.setBackground(i % 2 == 0 ? Color.LIGHT_GRAY : Color.RED);
    } else {
        square.setBackground(i % 2 == 0 ? Color.RED : Color.LIGHT_GRAY);
    }
}

棋盘结束了。这些是我的国际象棋pices，其中包含放置在要移动的棋盘上的棋子图像

JLabel piece;

    piece = new JLabel( new ImageIcon("C:\\Users\\Moemmer\\Documents\\NetBeansProjects

\\ChessGame\\src\\Images\\23797642-complete-wooden-chess-set-with-s-full-complement-

of-chess-pieces-in-both-colours-lined-up-in-rows-is - Copy.jpg") );



JPanel panel = (JPanel)chessBoard.getComponent(0);



panel.add(piece);


piece = new JLabel(new ImageIcon("C:\\Users\\Moemmer\\Documents\\NetBeansProjects

\\ChessGame\\src\\Images\\23797642-complete-wooden-chess-set-with-s-full-complement-

of-chess-pieces-in-both-colours-lined-up-in-rows-is - Copy.jpg"));

panel = (JPanel)chessBoard.getComponent(15);



panel.add(piece);

piece = new JLabel(new ImageIcon("C:\\Users\\Moemmer\\Documents\\NetBeansProjects

\\ChessGame\\src\\Images\\23797642-complete-wooden-chess-set-with-s-full-complement-

of-chess-pieces-in-both-colours-lined-up-in-rows-is - Copy.jpg"));

panel = (JPanel)chessBoard.getComponent(16);



panel.add(piece);



piece = new JLabel(new ImageIcon("C:\\Users\\Moemmer\\Documents\\NetBeansProjects

\\ChessGame\\src\\Images\\23797642-complete-wooden-chess-set-with-s-full-complement-

of-chess-pieces-in-both-colours-lined-up-in-rows-is - Copy.jpg"));



panel = (JPanel)chessBoard.getComponent(20);

panel.add(piece);          chess pieces code ended)


        frame.setVisible(true); 



        desktop.add(frame);


        frame.setBounds(20,20,410,450);



        frame.add(layeredPane);




        try {



            frame.setSelected(true);




        } catch (java.beans.PropertyVetoException e) {}




    }

    //Quit the application.


    public void quit() {



        System.exit(0);
    }
    @Override

当代码未转换为内部框架并使用桌面窗格时，这些鼠标事件运行良好...

public void mousePressed(MouseEvent e){



chessPiece = null;



Component c = chessBoard.findComponentAt(e.getX(), e.getY());



if (c instanceof JPanel)



return;


Point parentLocation = c.getParent().getLocation();



xAdjustment = parentLocation.x - e.getX();



yAdjustment = parentLocation.y - e.getY();



chessPiece = (JLabel)c;


chessPiece.setLocation(e.getX() + xAdjustment, e.getY() + yAdjustment);



chessPiece.setSize(chessPiece.getWidth(), chessPiece.getHeight());



layeredPane.add(chessPiece, JLayeredPane.DRAG_LAYER);


}
    @Override


 public void mouseDragged(MouseEvent me) {



if (chessPiece == null) return;


chessPiece.setLocation(me.getX() + xAdjustment, me.getY() + yAdjustment);


}
//Drop the chess piece back onto the chess board
    @Override


    public void mouseReleased(MouseEvent e) {


if(chessPiece == null) return;


chessPiece.setVisible(false);


Component c = chessBoard.findComponentAt(e.getX(), e.getY());


if (c instanceof JLabel){


Container parent = c.getParent();




parent.remove(0);



parent.add( chessPiece );




}



else {



Container parent = (Container)c;



parent.add( chessPiece );



}



chessPiece.setVisible(true);



}



    @Override




    public void mouseClicked(MouseEvent e) {
}
    @Override


    public void mouseMoved(MouseEvent e) {


}
    @Override
    public void mouseEntered(MouseEvent e){
}
    @Override
    public void mouseExited(MouseEvent e) {
}
public void BackgroundImageJFrame()
{

}



Displaying the frame


private static void createAndShowGUI() {


        JFrame.setDefaultLookAndFeelDecorated(true);




        Game frame = new Game();


        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);






        frame.setVisible(true);

    }

主要方法＆gt;＆gt;

    public static void main(String[] args) {




        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createAndShowGUI();

            }
        });


    }

在内部框架中使用mouseListeners和mouseMotionListeners（Java）

0 个答案: