java swing将JPanel与鼠标侦听器的行列值关联
我正在编写一个带有GUI的棋盘游戏,基本上我有一个10x10的GridLayout JPanel 每个网格单元都是一个正方形的JPanel(我对这些JPanel使用了BorderLayout,因此边框是可见的) 无论如何,我想要它,这样当点击其中一个方块时,它会对boardGameGrid进行更改,boardGameGrid是一个导入到游戏后端GUI的类。说我想用这个方法java swing将JPanel与鼠标侦听器的行列值关联,java,swing,grid,jpanel,mouselistener,Java,Swing,Grid,Jpanel,Mouselistener,我正在编写一个带有GUI的棋盘游戏,基本上我有一个10x10的GridLayout JPanel 每个网格单元都是一个正方形的JPanel(我对这些JPanel使用了BorderLayout,因此边框是可见的) 无论如何,我想要它,这样当点击其中一个方块时,它会对boardGameGrid进行更改,boardGameGrid是一个导入到游戏后端GUI的类。说我想用这个方法 boardGameGrid.setCellCross(x,y) 当按下(x,y)位置的电池时 我不知道该怎么做,因为每个J
boardGameGrid.setCellCross(x,y)
当按下(x,y)位置的电池时
我不知道该怎么做,因为每个JPanel都不包含关于其位置的任何信息
谢谢为什么不把它作为一个
JTable
而不是JPanel来做呢,你可以在每个单元格中添加一个侦听器。这样,您将知道单击了哪一行和哪一列您可以使用二维数组存储对面板的引用
例如:
JPanel[][] panels = new JPanel[10][10];
//to store a panel:
JPanel p = new JPanel();
panels[x][y] = p;
//then change your method so that it gets the panel at position (x,y) from the array
public void setCellCross(int x, int y){
JPanel clickedPanel = panels[x][y];
}
你为什么不让每个小组都知道他的立场:
public MyPanel(int x, int y) {
this.x = x;
this.y = y;
}
在鼠标侦听器中:
MyPanel p = (MyPanel) event.getSource();
boardGameGrid.setCellCross(p.getX(), p.getY());
或者,如果您不想更改MyPanel,也可以使用映射
,并在此映射中存储每个面板的位置:
MyPanel p = (MyPanel) event.getSource();
Point point = panelPositionMap.get(p);
boardGameGrid.setCellCross(p.x, p.y);
你必须准备这个JPanels作为对象,并把它放到地图或列表中,这是一个基于伟大但简单想法的简单示例
import java.awt.*;
import java.awt.event.*;
import java.util.ArrayList;
import java.util.List;
import javax.swing.*;
import javax.swing.border.LineBorder;
//based on @trashgod code from http://stackoverflow.com/a/7706684/714968
public class FocusingPanel extends JFrame {
private static final long serialVersionUID = 1L;
private int elements = 10;
private List<GridPanel> list = new ArrayList<GridPanel>();
private final JFrame mainFrame = new JFrame();
private final JPanel fatherPanel = new JPanel();
public FocusingPanel() {
fatherPanel.setLayout(new GridLayout(elements, elements));
for (int i = 0; i < elements * elements; i++) {
int row = i / elements;
int col = i % elements;
GridPanel gb = new GridPanel(row, col);
list.add(gb);
fatherPanel.add(gb);
}
mainFrame.setLayout(new BorderLayout(5, 5));
mainFrame.setDefaultCloseOperation(EXIT_ON_CLOSE);
mainFrame.add(fatherPanel, BorderLayout.CENTER);
mainFrame.pack();
mainFrame.setVisible(true);
}
private GridPanel getGridPanel(int r, int c) {
int index = r * elements + c;
return list.get(index);
}
private class GridPanel extends JPanel {
private int row;
private int col;
@Override
public Dimension getPreferredSize() {
return new Dimension(20, 20);
}
public GridPanel(int row, int col) {
this.row = row;
this.col = col;
this.setBackground(Color.red);
this.setBorder(new LineBorder(Color.black,1));
this.addMouseListener(new MouseListener() {
@Override
public void mouseClicked(MouseEvent e) {
int r = GridPanel.this.row;
int c = GridPanel.this.col;
GridPanel gb = FocusingPanel.this.getGridPanel(r, c);
System.out.println("r" + r + ",c" + c
+ " " + (GridPanel.this == gb)
+ " " + (GridPanel.this.equals(gb)));
}
@Override
public void mousePressed(MouseEvent e) {
}
@Override
public void mouseReleased(MouseEvent e) {
}
@Override
public void mouseEntered(MouseEvent e) {
int r = GridPanel.this.row;
int c = GridPanel.this.col;
GridPanel gb = FocusingPanel.this.getGridPanel(r, c);
System.out.println("r" + r + ",c" + c
+ " " + (GridPanel.this == gb)
+ " " + (GridPanel.this.equals(gb)));
setBackground(Color.blue);
}
@Override
public void mouseExited(MouseEvent e) {
setBackground(Color.red);
}
});
}
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
FocusingPanel focusingPanel = new FocusingPanel();
}
});
}
}
import java.awt.*;
导入java.awt.event.*;
导入java.util.ArrayList;
导入java.util.List;
导入javax.swing.*;
导入javax.swing.border.LineBorder;
//基于来自的@trashgod代码http://stackoverflow.com/a/7706684/714968
公共类聚焦面板扩展JFrame{
私有静态最终长serialVersionUID=1L;
私有int元素=10;
私有列表=新的ArrayList();
私有最终JFrame大型机=新JFrame();
private final JPanel fatherPanel=新JPanel();
公众焦点小组(){
setLayout(新的GridLayout(元素,元素));
对于(int i=0;i
每个JPanel都知道它的位置,您可以使用panel.getX()/getY()获得它。看起来你想要的是:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class PanelLocation extends JFrame implements MouseListener
{
private JPanel mainPanel, footerPanel;
private JPanel[] panel = new JPanel[9];
private JTextField tfield;
public PanelLocation()
{
mainPanel = new JPanel();
mainPanel.setLayout(new GridLayout(3, 3));
for (int i = 0; i < 9; i++)
{
panel[i] = new JPanel();
panel[i].addMouseListener(this);
panel[i].setBorder(BorderFactory.createLineBorder(Color.BLUE));
mainPanel.add(panel[i]);
}
footerPanel = new JPanel();
tfield = new JTextField(10);
footerPanel.add(tfield);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(null);
add(mainPanel, BorderLayout.CENTER);
add(footerPanel, BorderLayout.PAGE_END);
pack();
setVisible(true);
}
private void getWhichButtonGotPressed(int x, int y)
{
if ((x == panel[0].getX()) && (y == panel[0].getY()))
{
panel[0].setBackground(Color.MAGENTA);
tfield.setText("You Clicked Panel : " + panel[0].getToolTipText());
}
else if ((x == panel[1].getX()) && (y == panel[1].getY()))
{
panel[1].setBackground(Color.YELLOW);
tfield.setText("You Clicked Panel : " + panel[1].getToolTipText());
}
else if ((x == panel[2].getX()) && (y == panel[2].getY()))
{
panel[2].setBackground(Color.RED);
tfield.setText("You Clicked Panel : " + panel[2].getToolTipText());
}
else if ((x == panel[3].getX()) && (y == panel[3].getY()))
{
panel[3].setBackground(Color.DARK_GRAY);
tfield.setText("You Clicked Panel : " + panel[3].getToolTipText());
}
else if ((x == panel[4].getX()) && (y == panel[4].getY()))
{
panel[4].setBackground(Color.ORANGE);
tfield.setText("You Clicked Panel : " + panel[4].getToolTipText());
}
else if ((x == panel[5].getX()) && (y == panel[5].getY()))
{
panel[5].setBackground(Color.PINK);
tfield.setText("You Clicked Panel : " + panel[5].getToolTipText());
}
else if ((x == panel[6].getX()) && (y == panel[6].getY()))
{
panel[6].setBackground(Color.BLUE);
tfield.setText("You Clicked Panel : " + panel[6].getToolTipText());
}
else if ((x == panel[7].getX()) && (y == panel[7].getY()))
{
panel[7].setBackground(Color.CYAN);
tfield.setText("You Clicked Panel : " + panel[7].getToolTipText());
}
else if ((x == panel[8].getX()) && (y == panel[8].getY()))
{
panel[8].setBackground(Color.GRAY);
tfield.setText("You Clicked Panel : " + panel[8].getToolTipText());
}
}
public void mouseClicked(MouseEvent ae)
{
JPanel panel = (JPanel) ae.getSource();
getWhichButtonGotPressed(panel.getX(), panel.getY());
}
public void mousePressed(MouseEvent ae)
{
}
public void mouseReleased(MouseEvent ae)
{
}
public void mouseEntered(MouseEvent ae)
{
}
public void mouseExited(MouseEvent ae)
{
}
public static void main(String[] args)
{
SwingUtilities.invokeLater(new Runnable()
{
public void run()
{
new PanelLocation();
}
});
}
}
import java.awt.*;
导入java.awt.event.*;
导入javax.swing.*;
公共类PanelLocation扩展JFrame实现MouseListener
{
专用JPanel主面板、页脚面板;
私有JPanel[]面板=新JPanel[9];
私有JTextField;
公共场所()
{
mainPanel=新的JPanel();
设置布局(新的网格布局(3,3));
对于(int i=0;i<9;i++)
{
panel[i]=新的JPanel();
面板[i]。addMouseListener(本);
面板[i].setBorder(BorderFactory.createLineBorder(Color.BLUE));
主面板。添加(面板[i]);
}
footerPanel=新的JPanel();
tfield=新的JTextField(10);
footerPanel.add(tfield);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLocationRelativeTo(空);
添加(主面板,BorderLayout.CENTER);
添加(页脚面板,边框布局。第_页结束);
包装();
setVisible(真);
}
私有void GetWhichButtongOverpressed(整数x,整数y)
{
如果((x==面板[0].getX())&&(y==面板[0].getY())
{
面板[0]。背景色(颜色为洋红色);
setText(“您单击了面板:+Panel[0].getToolTiptText());
}
else if((x==面板[1].getX())&&&(y)