56 lines
1.6 KiB
Java
56 lines
1.6 KiB
Java
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import javax.swing.*;
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import java.awt.*;
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import java.io.DataInputStream;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.ObjectInputStream;
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public class Polygone extends JPanel {
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private int[] x;
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private int[] y;
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public Polygone() {
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super();
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try {
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FileInputStream fis = new FileInputStream("./polygone.bin");
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DataInputStream b = new DataInputStream(fis);
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x = new int[b.available() / 8];
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y = new int[b.available() / 8];
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for (int i = 0; i < x.length; i++) {
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x[i] = b.readInt() * 2;
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y[i] = b.readInt() * 2;
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System.out.println(x[i] + ", " + y[i]);
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}
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b.close();
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} catch (IOException e) {
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System.out.println(e);
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}
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this.repaint();
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}
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@Override
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protected void paintComponent(Graphics g) {
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// obligatoire : on crée un nouveau pinceau pour pouvoir le modifier plus tard
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Graphics secondPinceau = g.create();
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// obligatoire : si le composant n'est pas censé être transparent
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if (this.isOpaque()) {
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// obligatoire : on repeint toute la surface avec la couleur de fond
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secondPinceau.setColor(this.getBackground());
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secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
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}
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// maintenant on dessine ce que l'on veut
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secondPinceau.setColor(Color.BLACK);
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if (x != null) {
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secondPinceau.fillPolygon(x, y, x.length);
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}
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}
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}
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