JFrame utilisation du PaintComponent

**noehiem** · 04/11/2017, 22h11

Bonsoir à tous,

J'ai un petit souci, je débute dans les IMH, j'aimerais dessiner une matrice via le PaintComponent() et l'affecter à un Panel en particulier, je ne sais pas trop comment m'y prendre voici ce que j'ai fais, pour le moment le PaintComponent() ne s'applique pas du tout...

Voici le code :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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public class Fenetre extends JFrame{
    private JPanel accueil = new JPanel();
    private JPanel page1 = new JPanel();
    private JLabel label = new JLabel("TEST");
    private JButton b = new JButton ("Jouer");
 
    public Fenetre(){
 
        this.setTitle("TEST");
        this.setSize(1000,800);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setLocationRelativeTo(null);
        this.setVisible(true);
 
        accueil.setLayout(null);
        accueil.setBackground(Color.white);
 
        Font police = new Font("Arial", Font.BOLD, 22);
        label.setFont(police);
        label.setForeground(Color.ORANGE);
        label.setBounds(this.getWidth()/2-75, this.getHeight()/2-105, 200, 75);
 
        b.addActionListener(new BoutonListener());
        b.setForeground(Color.blue);
        b.setBackground(Color.orange);
        b.setBounds(this.getWidth()/2-75, this.getHeight()/4*3, 100, 60);
 
        accueil.add(b);
        accueil.add(label);
        this.setContentPane(accueil);
 
    }
 
 
    public void changerMenu(){
        this.setContentPane(this.page1);
        this.revalidate();
        this.repaint();
    }
 
    public void PaintComponent(Graphics g){
        System.out.println("Dans paint componenent");
 
        //Colonnes
        g.drawLine(this.getWidth()/15,0,this.getWidth()/15,this.getHeight());
        g.drawLine(this.getWidth()/15*2,0,this.getWidth()/15*2,this.getHeight());
        g.drawLine(this.getWidth()/15*3,0,this.getWidth()/15*3,this.getHeight());
        g.drawLine(this.getWidth()/15*4,0,this.getWidth()/15*4,this.getHeight());
        g.drawLine(this.getWidth()/15*5,0,this.getWidth()/15*5,this.getHeight());
        g.drawLine(this.getWidth()/15*6,0,this.getWidth()/15*6,this.getHeight());
        g.drawLine(this.getWidth()/15*7,0,this.getWidth()/15*7,this.getHeight());
        g.drawLine(this.getWidth()/15*8,0,this.getWidth()/15*8,this.getHeight());
        g.drawLine(this.getWidth()/15*9,0,this.getWidth()/15*9,this.getHeight());
        g.drawLine(this.getWidth()/15*10,0,this.getWidth()/15*10,this.getHeight());
        g.drawLine(this.getWidth()/15*11,0,this.getWidth()/15*11,this.getHeight());
        g.drawLine(this.getWidth()/15*12,0,this.getWidth()/15*12,this.getHeight());
        g.drawLine(this.getWidth()/15*13,0,this.getWidth()/15*13,this.getHeight());
 
        //Lignes
        g.drawLine(0, this.getHeight()/15, this.getWidth(), this.getHeight()/15);
        g.drawLine(0, this.getHeight()/15*2, this.getWidth(), this.getHeight()/15*2);
        g.drawLine(0, this.getHeight()/15*3, this.getWidth(), this.getHeight()/15*3);
        g.drawLine(0, this.getHeight()/15*4, this.getWidth(), this.getHeight()/15*4);
        g.drawLine(0, this.getHeight()/15*5, this.getWidth(), this.getHeight()/15*5);
        g.drawLine(0, this.getHeight()/15*6, this.getWidth(), this.getHeight()/15*6);
        g.drawLine(0, this.getHeight()/15*7, this.getWidth(), this.getHeight()/15*7);
        g.drawLine(0, this.getHeight()/15*8, this.getWidth(), this.getHeight()/15*8);
        g.drawLine(0, this.getHeight()/15*9, this.getWidth(), this.getHeight()/15*9);
        g.drawLine(0, this.getHeight()/15*10, this.getWidth(), this.getHeight()/15*10);
        g.drawLine(0, this.getHeight()/15*11, this.getWidth(), this.getHeight()/15*11);
        g.drawLine(0, this.getHeight()/15*12, this.getWidth(), this.getHeight()/15*12);
        g.drawLine(0, this.getHeight()/15*13, this.getWidth(), this.getHeight()/15*13);
        g.drawLine(0, this.getHeight()/15*14, this.getWidth(), this.getHeight()/15*14);
 
        page1.paint(g);
 
    }
 
    class BoutonListener implements ActionListener{
 
        @Override
        public void actionPerformed(ActionEvent arg0) {
            // TODO Auto-generated method stub
            Fenetre.this.changerMenu();
        }
 
    }

Donc voila, ma page d'accueil s'affiche très bien mais lorsque j'atteins ma deuxieme page via le bouton, celle ci est vide.

Merci par avance

**tchize_** · 04/11/2017, 23h36

Ben tu dois créer un sous classe de JPanel où tu redéfini paintComponent et dedans tu met son code de desssin. Par contre tu ne dois pas redéfinir le paintComponent de la JFrame du coup.

**noehiem** · 05/11/2017, 10h48

Comme ceci :

Code :

Sélectionner tout - Visualiser dans une fenêtre à part

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class Page extends JPanel {
 
 
		@Override
		public void paintComponent(Graphics g){
			System.out.println("Dans paint componenent");
 
			//Colonnes
			g.drawLine(this.getWidth()/15,0,this.getWidth()/15,this.getHeight());
			g.drawLine(this.getWidth()/15*2,0,this.getWidth()/15*2,this.getHeight());
			g.drawLine(this.getWidth()/15*3,0,this.getWidth()/15*3,this.getHeight());
			g.drawLine(this.getWidth()/15*4,0,this.getWidth()/15*4,this.getHeight());
			g.drawLine(this.getWidth()/15*5,0,this.getWidth()/15*5,this.getHeight());
			g.drawLine(this.getWidth()/15*6,0,this.getWidth()/15*6,this.getHeight());
			g.drawLine(this.getWidth()/15*7,0,this.getWidth()/15*7,this.getHeight());
			g.drawLine(this.getWidth()/15*8,0,this.getWidth()/15*8,this.getHeight());
			g.drawLine(this.getWidth()/15*9,0,this.getWidth()/15*9,this.getHeight());
			g.drawLine(this.getWidth()/15*10,0,this.getWidth()/15*10,this.getHeight());
			g.drawLine(this.getWidth()/15*11,0,this.getWidth()/15*11,this.getHeight());
			g.drawLine(this.getWidth()/15*12,0,this.getWidth()/15*12,this.getHeight());
			g.drawLine(this.getWidth()/15*13,0,this.getWidth()/15*13,this.getHeight());
 
			//Lignes
			g.drawLine(0, this.getHeight()/15, this.getWidth(), this.getHeight()/15);
			g.drawLine(0, this.getHeight()/15*2, this.getWidth(), this.getHeight()/15*2);
			g.drawLine(0, this.getHeight()/15*3, this.getWidth(), this.getHeight()/15*3);
			g.drawLine(0, this.getHeight()/15*4, this.getWidth(), this.getHeight()/15*4);
			g.drawLine(0, this.getHeight()/15*5, this.getWidth(), this.getHeight()/15*5);
			g.drawLine(0, this.getHeight()/15*6, this.getWidth(), this.getHeight()/15*6);
			g.drawLine(0, this.getHeight()/15*7, this.getWidth(), this.getHeight()/15*7);
			g.drawLine(0, this.getHeight()/15*8, this.getWidth(), this.getHeight()/15*8);
			g.drawLine(0, this.getHeight()/15*9, this.getWidth(), this.getHeight()/15*9);
			g.drawLine(0, this.getHeight()/15*10, this.getWidth(), this.getHeight()/15*10);
			g.drawLine(0, this.getHeight()/15*11, this.getWidth(), this.getHeight()/15*11);
			g.drawLine(0, this.getHeight()/15*12, this.getWidth(), this.getHeight()/15*12);
			g.drawLine(0, this.getHeight()/15*13, this.getWidth(), this.getHeight()/15*13);
			g.drawLine(0, this.getHeight()/15*14, this.getWidth(), this.getHeight()/15*14);
 
			page1.paint(g); 
 
		}
 
 
	}

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