48 lines
1.2 KiB
Java
48 lines
1.2 KiB
Java
import java.awt.*;
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import javax.swing.*;
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import java.awt.event.*;
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public class Volume extends JPanel implements MouseWheelListener{
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int pos=0;
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public Volume(){
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super();
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}
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protected void paintComponent(Graphics pinceau) {
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// obligatoire : on cree un nouveau pinceau pour pouvoir le modifier plus tard
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Graphics pinceau2 = pinceau.create();
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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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pinceau2.setColor(Color.DARK_GRAY);
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pinceau2.fillRect(0, 0, this.getWidth(), this.getHeight());
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} for(int i=0; i<pos; i++){
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pinceau2.setColor(Color.ORANGE);
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pinceau2.fillOval((this.getWidth()/33)+(this.getWidth()/31)*3*i, this.getHeight()/4, (this.getWidth()/31)*2, this.getHeight()/2);
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} for(int j=pos; j<10; j++){
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pinceau2.setColor(Color.GRAY);
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pinceau2.fillOval((this.getWidth()/33)+(this.getWidth()/31)*3*j, this.getHeight()/4, (this.getWidth()/31)*2, this.getHeight()/2);
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}
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}
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public void mouseWheelMoved(MouseWheelEvent e){
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int mv = e.getWheelRotation();
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if (mv>0){
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if(pos==0){
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}
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else{
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pos--;
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this.repaint();
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}
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}
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if (mv<0){
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if(pos==10){
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}
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else{
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pos++;
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this.repaint();
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}
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}
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}
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} |