Question

我的总体目标是创建一个拼图游戏，使用mousedrag在GUI屏幕上移动一组图像。我目前的问题是制作这种捕捉功能，当鼠标拖动图像释放时，图像将捕捉到预定的位置。这是我想要创建＆＃34;盒子＆＃34;的地方。我想为16个拼图创建16个盒子，并在释放鼠标时使用它们的坐标作为图像的捕捉位置。（当你在悬停一般区域时，如何在拼图游戏中将这些部分捕捉到正确的位置）。我试图制作16个JPanels，但我不知道这是否是聪明的方法。而且，似乎我甚至无法将JPanel添加到我的JLayeredPane。我试图为其中一个JPanel设置边框，以帮助我查看它是否已添加，但事实并非如此。

鼠标拖动工作正常，一切正常。我只是希望能够添加某种盒子的表示形式，鼠标释放后的图像会捕捉到盒子的位置。如果您对此问题有任何见解，请与我们联系！

import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.File;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.*;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Point;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.FileFilter;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JLayeredPane;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;


public class Gui1 {

    public static void main(String[] args) {
        new Gui1();
    }

    public Gui1() {    //Constructor for setting up the GUI
        EventQueue.invokeLater(new Runnable() {
        @Override
        public void run() {
            try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            } catch (ClassNotFoundException | InstantiationException | IllegalAccessException | UnsupportedLookAndFeelException ex) {
            ex.printStackTrace();
            }
            JLayeredPane pane = new JLayeredPane();
            JFrame frame = new JFrame("Testing");
            JPanel canvas1 = new JPanel();
            JPanel canvas2 = new JPanel();
            JPanel canvas3 = new JPanel();
            JPanel canvas4 = new JPanel();
            JPanel canvas5 = new JPanel();
            JPanel canvas6 = new JPanel();         
            JPanel canvas7 = new JPanel();
            JPanel canvas8 = new JPanel();
            JPanel canvas9 = new JPanel();
            JPanel canvas10 = new JPanel();
            JPanel canvas11 = new JPanel();
            JPanel canvas12 = new JPanel();
            JPanel canvas13 = new JPanel();
            JPanel canvas14 = new JPanel();
            JPanel canvas15 = new JPanel();
            JPanel canvas16 = new JPanel();
            canvas1.setPreferredSize(new Dimension(300,300));
                 canvas1.setBorder(BorderFactory.createLineBorder(Color.blue,10));      
            pane.add(canvas1, JLayeredPane.DEFAULT_LAYER);

            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.add(new ImageGrab());
            frame.pack();
            frame.setLocationRelativeTo(null);
            frame.setVisible(true);
        }
        });

    }
}

如何将“框”（仅有边框的矩形）添加到JLayeredPane？

0 个答案: