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  1. package Lec10;
  2.  
  3. import java.awt.*;
  4. import java.awt.event.*;
  5. import java.util.*;  //課題2で追加
  6. import javax.swing.*;
  7.  
  8. class MyMouseSample03 extends JPanel {  //課題2で変更
  9.  
  10.     java.util.List<Point> pointList = new LinkedList<Point>();  //課題2で追加
  11.     int xPanelSize;
  12.     int yPanelSize;
  13.     int x, y;
  14.     Dimension size;
  15.  
  16.     //コンストラクタ
  17.     MyMouseSample03(int xPanelSize, int yPanelSize) {  //課題2で変更
  18.         this.xPanelSize = xPanelSize;
  19.         this.yPanelSize = yPanelSize;
  20.  
  21.         addMouseMotionListener(new MyMouseMotionListener());
  22.         addMouseListener(new MyMouseActionListener());
  23.     }
  24.  
  25.     class MyMouseMotionListener extends MouseMotionAdapter {
  26.  
  27.         public void mouseMoved(MouseEvent evt) {
  28.             x = evt.getX();
  29.             y = evt.getY();
  30.             System.out.println("( " + x + " , " + y + " )");
  31.  
  32.             repaint();
  33.         }
  34.     }
  35.  
  36.     class MyMouseActionListener extends MouseAdapter {
  37.  
  38.         private int clickNumber = 0;
  39.  
  40.         public void mouseClicked(MouseEvent evt) {
  41.             clickNumber++;
  42.             System.out.println("( " + evt.getX() + " , " + evt.getY() + " ) " + clickNumber + "回目のクリック");
  43.  
  44.             //課題2で追加
  45.             pointList.add(evt.getPoint());
  46.             repaint();
  47.         }
  48.     }
  49.  
  50.     protected void paintComponent(Graphics g) {
  51.         super.paintComponent(g);
  52.  
  53.         size = getSize();
  54.  
  55.         g.setColor(Color.BLACK);
  56.         g.fillRect(0, 0, size.width, size.height);
  57.  
  58.         //課題2で追加
  59.         Iterator<Point> it = pointList.iterator();
  60.         while (it.hasNext()) {
  61.             Point p = (Point) it.next();
  62.  
  63.             g.setColor(Color.BLUE);
  64.             g.fillOval(p.x - 5, p.y - 5, 10, 10);
  65.         }
  66.  
  67.         g.setColor(Color.GREEN);
  68.         g.drawLine(x, 0, x, size.height);
  69.         g.drawLine(0, y, size.width, y);
  70.     }
  71.  
  72.     public static void main(String[] args) {
  73.         MyMouseSample03 panel = new MyMouseSample03(500, 400);  //課題2で変更
  74.         panel.setPreferredSize(new Dimension(panel.xPanelSize, panel.yPanelSize));
  75.  
  76.         //JFrame fr = new JFrame();
  77.         //MyMenuFrame02 fr = new MyMenuFrame02("MyMouseSample01");
  78.         MyMenuFrame03 fr = new MyMenuFrame03("MyMouseSample03");  //課題2で変更
  79.  
  80.         fr.add(panel);
  81.         fr.pack();
  82.         fr.setVisible(true);
  83.     }
  84. }
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https://ideone.com/ILgtWt
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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