Add Background to a GirdBagLayout

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Add Background to a GirdBagLayout

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Good afternoon folks, here I'm trying to add a background image inside a GridBagLayout but I can not. Could some charitable soul help me?

Follow the Code >

package View;

import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Insets;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class TESTE extends JFrame implements ActionListener {

    /**
    * 
    */
    private static final long serialVersionUID = 1L;

    public static final int DEFAULT_WIDTH = 353;
    public static final int DEFAULT_HEIGHT = 200;

    private JButton jBExtrair;
    private JButton jBSair;

    public TESTE() throws IOException {

    super("Extract - Files");
    this.setDefaultCloseOperation(EXIT_ON_CLOSE);

    this.getContentPane().setLayout(new GridBagLayout());

    jBExtrair = new JButton("Extrair");
    jBSair = new JButton("Sair");

    add(jBExtrair, jBSair);
    add("/images/Fundo.jpg"); // Caminho da imagem.. packge Images

    this.setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
    this.setResizable(false);
    Toolkit kit = Toolkit.getDefaultToolkit();
    Dimension tamanhoTela = kit.getScreenSize();
    int width = tamanhoTela.width;
    int height = tamanhoTela.height;
    this.setLocation(width / 2, height / 2);
    setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); // pra nao sair
                                                        // caso clique
                                                        // no x e
                                                        // escolha nao

    // Classe para perguntar ao clicar no X ao inves de SAIR
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent evt) {
        int teste = JOptionPane.showConfirmDialog(null, "Deseja Sair?",                         "Exit", JOptionPane.YES_NO_OPTION,
                JOptionPane.WARNING_MESSAGE);
                if (teste == 0) {
            System.exit(0);
                }
            }
        });
    }


    /**
    * Recebe dois botoes Extrair e Sair
    * 
    * @param jButton1
    *            Botao recebido por parametro
    * @param jButton2
    *            Botao recebido por parametro    
    */
    public void add(JButton jButton1, JButton jButton2) {

        GridBagConstraints cons = new GridBagConstraints();

        cons.weightx = 300;
        cons.weighty = 300;
        cons.anchor = GridBagConstraints.NORTHWEST;
        cons.insets = new Insets(4, 4, 4, 4);

        jButton1 = new JButton();
        jButton2 = new JButton();
        jButton1 = jBExtrair;
        jButton2 = jBSair;

        cons.gridx = 0;
        cons.gridy = 4;
        cons.gridwidth = 2;
        this.getContentPane().add(jButton1, cons);

        cons.gridx = 3;
        cons.gridy = 5;
        cons.gridwidth = 2;
        this.getContentPane().add(jButton2, cons);

        jButton1.addActionListener(this);
        jButton2.addActionListener(this);
    }

    /**
    * Caminho da imagem do plano de fundo
    * 
    * @param caminhoImg
    *            String com diretorio da imagem
    */
    public void add(String caminhoImg) {

        JPanelWithBackground background = null;
        background = new JPanelWithBackground(caminhoImg);
        background.setSize(50, 50);

        GridBagConstraints cons = new GridBagConstraints();

        cons.weightx = 700;
        cons.weighty = 700;
        cons.anchor = GridBagConstraints.CENTER;
        cons.ipadx = 350;
        cons.ipady = 170;
        cons.gridx = 0;
        cons.gridy = 0;
        cons.gridwidth = 5;
        cons.gridheight = 6;
        // cons.fill = GridBagConstraints.BOTH;

        this.getContentPane().add(background, cons);

    }

    @Override
    public void actionPerformed(ActionEvent e) {


    }

}

In Truth if I in this line:

add("/images/Fundo.jpg"); // Caminho da imagem.. packge Images

If I paste for example:

add("C:\Fundo.jpg"); // Caminho da imagem.. Diretorio C:

So it works, when I put the path of a directory, but when I try to pass the path of the package it will not ..

I've posted all this so there's no doubt what I'm trying to do .. Thanks in advance

java jframe background

asked by anonymous 29.01.2016 / 12:42

1 answer

itextsharp does not add pages in loop Icon and Text in ActionBar menu

score 0 · Answer 1

I was able to ...

It was like this ...

Pass Pro method add the path > > >

    add("/View/Fundo.jpg");

Method in GridBagLayout > > >

/**
 * Caminho da imagem do plano de fundo
 * 
 * @param caminhoImg
 *            String com diretorio da imagem
 */
public void add(String caminhoImg) {


    Object image = null;
    try {
        image = ImageIO.read(getClass(). getResource(caminhoImg));
        } catch (IOException e) {
            e.printStackTrace();
            } JPanel j = new JPanelWithBackground((Image) image);


    GridBagConstraints cons = new GridBagConstraints();

    cons.weightx = 700;
    cons.weighty = 700;
    cons.anchor = GridBagConstraints.CENTER;
    cons.ipadx = 350;
    cons.ipady = 170;
    cons.gridx = 0;
    cons.gridy = 0;
    cons.gridwidth = 5;
    cons.gridheight = 6; // cons.fill = GridBagConstraints.BOTH;
    this.getContentPane().add(j, cons);

}

Class that manages the Image > > >

package View;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JPanel;


public class JPanelWithBackground extends JPanel {
private static final long serialVersionUID = 1L;
Image imageOrg = null;

public JPanelWithBackground(Image image2) {
    imageOrg = image2;
    setOpaque(false);
}

@Override
public Dimension getPreferredSize() {
    return new Dimension(imageOrg.getWidth(this), imageOrg.getHeight(this));
}

@Override
public void paintComponent(Graphics g) {
    super.paintComponent(g);
    if (imageOrg != null) {
        System.err.println("painting");
        g.drawImage(imageOrg, 0, 0, getWidth(), getHeight(), this);
    }
}

}