Why jvm don´t call paintComponent(Graphics g)?

[Fernando hiar]

I loaded the Image in the class CarregarImagem this code é alright, but when I draw the images the jvm don´t call paintComponent, why?


here my code:
PintarImage class:

package Codigo;

import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.IOException;

public class PintarImagem extends JPanel {
	Image nome2[] = new Image[21];
	CarregarImagens ima;
	int x1[] = new int[21];
	int y1[] = new int[21];
    int pWidth, pHeight;
 
    
	public PintarImagem(int w, int h, CarregarImagens c) {
		ima = c;
		pWidth = w;
		pHeight = h;
		setImage();
		repaint();
	}
		
		public void setImage() {
			String s;
			for(int i = 0; i <= 20; i++) {
				s = (String)ima.id.get(i);
				nome2[i] = ima.getImage(s, i);
			}
		}

		protected void paintComponent(Graphics g) { 
 			super.paintComponent(g);
 	  		System.out.println("Pintar");
 			int x =50, y = 50;
 			g.setColor(Color.red);
 			g.fillRect(50, 50, pWidth,pHeight);
 			for(int i = 0; i <= 20; i++) {
				if(x > pWidth - 100) {
					y = y + 100;
					x = 50;
					x1[i] = x;
					y1[i]  = y;
				}		
				try {
					g.drawImage(nome2[i], x,y,this);
					g.dispose();
					x = x + 100;
					x1[i] = x;			
				}
				catch(Exception e) {
				e.printStackTrace();
				}		
			}
		}	
}	

Inicial class:

package Codigo;


import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.util.*;
import java.awt.event.*;
import java.awt.image.*;
import java.io.File;

public class Inicial extends JFrame   {
	private CarregarImagens imagens;
	public static int pWidth = 800;
	public static int pHeight = 600;
	CarregarImagens ima;
	
	
	public Inicial() {
		super("Escolha uma opção");
		Container c = getContentPane();
		c.setLayout(null);
		
		Splash splash = new Splash();
		splash.setVisible(true);
		
		imagens = new CarregarImagens("ArquivoImagem.txt");
		splash.setVisible(false);
		
		setSize(pWidth,pHeight);
		setBackground(Color.white);
		setVisible(true);
		setResizable(true);
		
		
		JPanel superior = new PintarImagem(pWidth,pHeight,imagens);
		c.add(superior);
		
		JPanel inferior = new JPanel();
		ImageIcon f01 = new ImageIcon("\\Users\\Fernando\\workspace\\Iniciacao\\src\\Codigo\\00021.gif");
		JLabel rotulo1 = new JLabel();
		rotulo1.setIcon(f01);
		rotulo1.setBounds(50,400,90,90);
		ImageIcon f02 = new ImageIcon("\\Users\\Fernando\\workspace\\Iniciacao\\src\\Codigo\\00031.gif");
		JLabel rotulo2 = new JLabel();
		rotulo2.setIcon(f02);
		rotulo2.setBounds(150,400,90,90);
		ImageIcon f03 = new ImageIcon("\\Users\\Fernando\\workspace\\Iniciacao\\src\\Codigo\\00111.gif");
		JLabel rotulo3 = new JLabel();
		rotulo3.setIcon(f03);
		rotulo3.setBounds(650,400,90,90);
		
		c.add(rotulo1);
		c.add(rotulo2);
		c.add(rotulo3);
		
	}	
	
	private class Splash extends JWindow {
		public Splash() {
			Container tela = getContentPane();
			tela.setLayout(new FlowLayout(FlowLayout.LEFT,1,1));
			
			ImageIcon imagem = new ImageIcon("\\Users\\Fernando\\workspace\\Iniciacao\\src\\Codigo\\splash.gif");
			JLabel rotulo = new JLabel(imagem);
			tela.add(rotulo);
			
			pack();
			setLocationRelativeTo(null);	
		}
		
	}
	public static void main(String args[]) {
		
		Inicial app = new Inicial();
		app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}
}

thanks

[Michael Dunn]

> but when I draw the images the jvm don´t call paintComponent, why?

it probably does, but it's size might be 0

try adding the indicated line

public PintarImagem(int w, int h, CarregarImagens c) {  
  ima = c;  
  pWidth = w;  
  pHeight = h;
  setPreferredSize(new Dimension(w,h));//<------------  
  setImage();  
  repaint();  
}