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import javax.swing.*;import java.awt.*;public class WaitingBar extends JComponent implements Runnable{	private static final long serialVersionUID = 1L;		private boolean isRunning;	private int cptr;	private Color[] tabCouleurs;		public WaitingBar()	{		this(120, 32);	}		public WaitingBar(int width, int height)	{		super();				this.cptr = 0;		this.isRunning = false;		this.tabCouleurs = new Color[19];				this.setCouleurs(Color.WHITE, Color.BLACK);		this.setSize(width, height);		new Thread(this).start();		this.startAnim();	}		/**	 * Définit les 2 couleurs entre lesquelles l'animation oscille.	 * 	 * @param c1 Couleur de départ pour l'animation.	 * @param c2 Couleur de fin pour l'animation.	 */	public void setCouleurs(Color c1, Color c2){		double diffR, diffG, diffB;				diffR = ((double)c1.getRed() - (double)c2.getRed()) / 10;		diffG = ((double)c1.getGreen() - (double)c2.getGreen()) / 10;		diffB = ((double)c1.getBlue() - (double)c2.getBlue()) / 10;				tabCouleurs[0] = c1;				for(int i = 1; i <= 10; i++){			tabCouleurs[i] = new Color(					(int)(c1.getRed() - diffR * i),					(int)(c1.getGreen() - diffG * i),					(int)(c1.getBlue() - diffB * i));						tabCouleurs[19 - i] = tabCouleurs[i];		}	}		/**	 * Démarre l'animation de la WaitingBar.	 */	public void startAnim(){		isRunning = true;	}		/**	 * Arrête l'animation de la WaitingBar.	 */	public void stopAnim(){		isRunning = false;	}		/**	 * @return Retourne TRUE si l'animation de la WaitingBar est en train de jouer	 * ou FALSE si elle est stoppée.	 */	public boolean isRunning(){		return isRunning;	}			/**	 * JComponent.paint(Graphics g)	 */	public void paint(Graphics og){		//TODO: Double-buffering...		Graphics2D g = (Graphics2D) og;				//TODO: Afficher 5 carrées...				/*		 * nbCarres = 5;		 * 		 * double deltaY = getHeight() * 0.02;		 * double deltaX = getWidth() * 0.03;		 * double rectWidth = getWidth() * 0.82 / 5;		 * double rectHeight = getHeight() * 0.96;		 * 		 * for(int i = 0; i < 5; i++){		 *		g.setColor(tabCouleur[ (cptr + i * 2) % tabCouleurs.length ]);		 *		g.fillRect(		 *				x = deltaX + (i * (deltaX + rectWidth),		 *				y = deltaY,		 *				width = rectWidth,		 *				height = rectHeight		 *		);		 * }		 *		 */				g.setColor(tabCouleurs[cptr % 19]);		g.fillRect(0,0,getWidth(),getHeight());		}		/**	 * Runnable.run()	 */	public void run(){		while(true){			if(isRunning()){				repaint();				cptr++;			}						try {				Thread.sleep(1000 / 12);			} catch (InterruptedException e) {}		}			}		}