3

JFrame のコンテンツ ペイン内にグリッドを描画しようとしていますが、そうするとすべてがオフになります。グリッドの開始位置が広すぎてずれており (ウィンドウの境界線がコンテンツ ペインと重なっている場所に設定されていると思われます)、グリッド全体が正しく描画されません。私が使用すると、frame.setUndecorated(true);すべてが完全に機能します。

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.*;

@SuppressWarnings("serial")
class Creator extends JFrame{

    JFrame frame;
    int[][] Grid = new int[18][27];
    public Creator(){
        frame = this;
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        for(int i = 0; i < 18; i++) {
            for(int j = 0; j < 27; j++) {
                Grid[i][j] = 0;
            }
        }
        setSize(864, 544);

        getContentPane().addMouseListener(new MouseAdapter() {            
            @Override
            public void mouseClicked(MouseEvent e) {
                int yLocation = e.getX()/32;
                int xLocation = e.getY()/32;
                System.out.println(xLocation + " " + yLocation);

                if(e.getButton() == 1){
                    if(xLocation < 1 || yLocation < 1){
                        Grid[xLocation][yLocation] = 2;
                        System.out.println("Enemy Added");
                    }else if(xLocation > 16 || yLocation > 25){
                        Grid[xLocation][yLocation] = 2;
                        System.out.println("Enemy Added");
                    }else {
                        Grid[xLocation][yLocation] = 1;
                        System.out.println("Obstacle Added");
                    }
                }else {
                    Grid[xLocation][yLocation] = 0;
                    System.out.println("Item Removed");
                }
                frame.invalidate();
                frame.validate();
                frame.repaint();
            }
        });

    }

    public void paint(Graphics g) {
        g.clearRect(0, 0, 864, 544);
        Graphics2D g2 = (Graphics2D) g;
        for(int i =0; i < 18; i++) {
            for(int j =0; j < 27; j++) {
                if(Grid[i][j] != 0){
                    if( i < 1 || j < 1 || i > 26 || j > 17) {
                        g2.setColor(Color.RED);
                        g2.fillRect(j*32, i*32, 32, 32);
                    }else {
                        g2.setColor(Color.BLUE);
                        g2.fillRect(j*32, i*32, 32, 32);
                    }
                }
                //System.out.print(Grid[i][j]);
            }
            //System.out.println();
        }
        for(int i = 0; i < 27; i++) {
            Line2D lin = new Line2D.Float(i*32, 0, i*32, 544);
            g2.draw(lin);
        }
        for(int i = 0; i < 18; i++) {
            Line2D lin = new Line2D.Float(0, i*32, 864, i*32);
            g2.draw(lin);
        }

    }

    public static void main(String []args){
        Creator s=new Creator();
        s.setVisible(true);
    }
}
4

2 に答える 2

1

JB Nizet が優れたソリューションを提供します。コードを次のように変更します。

import javax.swing.*;
import java.awt.*;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.geom.*;

@SuppressWarnings("serial")
class Creator extends JPanel{


    static int[][] Grid = new int[18][27];
    public Creator(){        
        setSize(getPreferredSize());
    }

    public void paint(Graphics g) {
        g.clearRect(0, 0, getWidth(), getHeight());
        Graphics2D g2 = (Graphics2D) g;
        for(int i =0; i < 18; i++) {
            for(int j =0; j < 27; j++) {
                if(Grid[i][j] != 0){
                    if( i < 1 || j < 1 || i > 26 || j > 17) {
                        g2.setColor(Color.RED);
                        g2.fillRect(j*32, i*32, 32, 32);
                    }else {
                        g2.setColor(Color.BLUE);
                        g2.fillRect(j*32, i*32, 32, 32);
                    }
                }
                //System.out.print(Grid[i][j]);
            }
            //System.out.println();
        }
        for(int i = 0; i < 27; i++) {
            Line2D lin = new Line2D.Float(i*32, 0, i*32, getHeight());
            g2.draw(lin);
        }
        for(int i = 0; i < 18; i++) {
            Line2D lin = new Line2D.Float(0, i*32, getWidth(), i*32);
            g2.draw(lin);
        }

    }

    public static void main(String []args){
        JFrame frame=new JFrame();
        Creator s=new Creator();
        frame.setSize(864, 544); 
        frame.add(s);
        frame.setVisible(true);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.getContentPane().addMouseListener(new MouseAdapter() {            
            @Override
            public void mouseClicked(MouseEvent e) {
                int yLocation = e.getX()/32;
                int xLocation = e.getY()/32;
                System.out.println(xLocation + " " + yLocation);

                if(e.getButton() == 1){
                    if(xLocation < 1 || yLocation < 1){
                        Grid[xLocation][yLocation] = 2;
                        System.out.println("Enemy Added");
                    }else if(xLocation > 16 || yLocation > 25){
                        Grid[xLocation][yLocation] = 2;
                        System.out.println("Enemy Added");
                    }else {
                        Grid[xLocation][yLocation] = 1;
                        System.out.println("Obstacle Added");
                    }
                }else {
                    Grid[xLocation][yLocation] = 0;
                    System.out.println("Item Removed");
                }
//                frame.invalidate();
//                frame.validate();
//                frame.repaint();
            }
        });
//        s.setUndecorated(true);
    }
}
于 2013-09-28T14:04:32.977 に答える