JDesktopPane Imagem de fundo - Não estou entendendo

Assuntos Gerais
#1

Gente , pesquisei mas não entendi!
Li nesse tópico, http://www.guj.com.br/java/131490-background-no-jdesktoppane

O colega didiosam passou esse código :

[code]
package a;

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

/**
*
*
*/

public class BackGround extends JDesktopPane {

    private Image img;  

    public BackGround() {  
        try {  
            img = javax.imageio.ImageIO.read(new java.net.URL(getClass().getResource("/HERSCHEL.JPG"), "HERSCHEL.JPG"));  
        } catch (Exception ex) {  
        }  
    }  

    @Override  
    public void paintComponent(Graphics g) {  
        super.paintComponent(g);  
        if (img != null) {  
            Dimension dimension = this.getSize();  
            int x = (int)(dimension.getWidth() - img.getWidth(this)) / 2;  
            int y = (int)(dimension.getHeight() - img.getHeight(this)) / 2;  

            g.drawImage(img, x, y, img.getWidth(this), img.getHeight(this), this);  
        } else {  
            g.drawString("Imagem nao encontrada", 50, 50);  
        }  
    }  
}   [/code]

naturalmente, criei uma classe separada somente para isso! Mas como que eu faço meu jDesktopPane chamar esse método para mudar o fundo ? Tipo, meu jDesktopPane ta numa classe Jframe, e a classe BackGround esta em outro lugar!

mais uma dúvida, posso usar a palavra BackGround ou ela ja é usada pelo Java?

#2

Ele chama sozinho.

Esse BackGround é um JDesktopPane. Então, no seu JFrame, troque a criação do DesktopPane para:

#3

[quote]no protocol: HERSCHEL.JPG
no protocol: HERSCHEL.JPG
[Ljava.lang.StackTraceElement;@52b57e9a[/quote]

Então a minha classe background esá assim :

[code]
package cooling;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JDesktopPane;
import javax.swing.JOptionPane;

/**
*
*
*/

public class BackGround extends JDesktopPane {

    private Image img;  

    public BackGround() {  
        try {  
            img = javax.imageio.ImageIO.read(new java.net.URL(getClass().getResource("/HERSCHEL.JPG"), "HERSCHEL.JPG"));  
        } catch (Exception ex) {
            JOptionPane.showMessageDialog(null, ex.getMessage());
            System.out.println("" + ex.getMessage());
             System.out.println("" + ex.getLocalizedMessage());
                System.out.println(" " + ex.getStackTrace());
        }  
        
    }  

    @Override  
    public void paintComponent(Graphics g) {  
        super.paintComponent(g);  
        if (img != null) {  
            Dimension dimension = this.getSize();  
            int x = (int)(dimension.getWidth() - img.getWidth(this)) / 2;  
            int y = (int)(dimension.getHeight() - img.getHeight(this)) / 2;  

            g.drawImage(img, x, y, img.getWidth(this), img.getHeight(this), this);  
        } else {  
            g.drawString("Imagem nao encontrada", 50, 50);  
        }  
    }  
}  [/code]

Tenho um arquivo chamado HERSCHEL.JPG dentro do package, junto com as outras classes do projeto!

O que estou fazendo errado?

#4

Faça a carga assim:

#5

input == null!
input == null!
[Ljava.lang.StackTraceElement;@4b7f1841

#6

Coloque sua imagem na mesma pasta dos fontes, inclusive o mesmo pacote. Por exemplo, se o pacote for br.com.guj vc deverá abrir com:

É importante verificar se as letras maiúsculas/minúsculas batem.

#7

Assim o erro parou!
img = javax.imageio.ImageIO.read(getClass().getResourceAsStream(“HERSCHEL.jpg”));

mas agora é o seguinte, quando eu tento clicar no botao multiplayer pra ele abrir uma jinternalframe, ele da esse erro:

[quote]Exception in thread “AWT-EventQueue-0” java.lang.IllegalArgumentException: illegal component position
at java.awt.Container.addImpl(Container.java:1048)
at javax.swing.JLayeredPane.addImpl(JLayeredPane.java:212)
at javax.swing.JDesktopPane.addImpl(JDesktopPane.java:470)
at java.awt.Container.add(Container.java:365)
at cooling.Main.jButton_MultiPlayerActionPerformed(Main.java:174)
at cooling.Main.access$100(Main.java:24)
at cooling.Main$2.actionPerformed(Main.java:110)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6288)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3267)
at java.awt.Component.processEvent(Component.java:6053)
at java.awt.Container.processEvent(Container.java:2041)
at java.awt.Component.dispatchEventImpl(Component.java:4651)
at java.awt.Container.dispatchEventImpl(Container.java:2099)
at java.awt.Component.dispatchEvent(Component.java:4481)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4577)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4238)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4168)
at java.awt.Container.dispatchEventImpl(Container.java:2085)
at java.awt.Window.dispatchEventImpl(Window.java:2478)
at java.awt.Component.dispatchEvent(Component.java:4481)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:643)
at java.awt.EventQueue.access$000(EventQueue.java:84)
at java.awt.EventQueue$1.run(EventQueue.java:602)
at java.awt.EventQueue$1.run(EventQueue.java:600)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:98)
at java.awt.EventQueue$2.run(EventQueue.java:616)
at java.awt.EventQueue$2.run(EventQueue.java:614)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:87)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:613)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:269)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:184)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:174)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:169)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:161)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:122)
CONSTRUÍDO COM SUCESSO (tempo total: 9 segundos)
[/quote]

[code]/*

  • Main.java
  • Created on 21/01/2012, 16:51:09
    */
    package cooling;

import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Image;
import java.beans.PropertyVetoException;
import java.text.SimpleDateFormat;
import java.util.GregorianCalendar;
import java.util.Locale;
import javax.swing.JDesktopPane;
import javax.swing.JInternalFrame;
import javax.swing.JOptionPane;

/**
*

  • @author André Vinícius Lopes
    */
    public class Main extends javax.swing.JFrame {

    /** Creates new form Main */
    public Main() {

     initComponents();
 jDesktopPane_Main = new BackGround();

    }

    /** This method is called from within the constructor to

    • initialize the form.

    • WARNING: Do NOT modify this code. The content of this method is

    • always regenerated by the Form Editor.
      */
      @SuppressWarnings(“unchecked”)
      //
      private void initComponents() {

      jInternalFrame_Multiplayer = new javax.swing.JInternalFrame();
      jDesktopPane_MP = new javax.swing.JDesktopPane();
      jButton_CharImage = new javax.swing.JButton();
      jTextField_NameChar = new javax.swing.JTextField();
      jButton_Attack = new javax.swing.JButton();
      jTextField_CharInfo = new javax.swing.JTextField();
      jDesktopPane_Main = new javax.swing.JDesktopPane();
      jLabel1 = new javax.swing.JLabel();
      jButton_MultiPlayer = new javax.swing.JButton();
      jButton_Readme = new javax.swing.JButton();
      jButton_Sair = new javax.swing.JButton();
      jLabel_Copyrighted = new javax.swing.JLabel();
      jButton_Settings = new javax.swing.JButton();
      jTextField_TimeDate = new javax.swing.JTextField();
      jMenuBar_Main = new javax.swing.JMenuBar();
      jMenu1 = new javax.swing.JMenu();
      jMenu2 = new javax.swing.JMenu();
      jMenu3 = new javax.swing.JMenu();

      jInternalFrame_Multiplayer.setVisible(true);

      jButton_CharImage.setIcon(new javax.swing.ImageIcon(getClass().getResource("/cooling/SpriteSoldier.jpg"))); // NOI18N
      jButton_CharImage.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton_CharImageActionPerformed(evt);
      }
      });
      jButton_CharImage.setBounds(20, 90, 90, 90);
      jDesktopPane_MP.add(jButton_CharImage, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jTextField_NameChar.setBackground(new java.awt.Color(255, 255, 51));
      jTextField_NameChar.setEditable(false);
      jTextField_NameChar.setText(“Name of your Character”);
      jTextField_NameChar.setBounds(20, 40, 190, 30);
      jDesktopPane_MP.add(jTextField_NameChar, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jButton_Attack.setText(“Attack”);
      jButton_Attack.setBounds(240, 100, 73, 23);
      jDesktopPane_MP.add(jButton_Attack, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jTextField_CharInfo.setBackground(new java.awt.Color(0, 204, 204));
      jTextField_CharInfo.setText(“Character Information”);
      jTextField_CharInfo.setBounds(20, 200, 160, 150);
      jDesktopPane_MP.add(jTextField_CharInfo, javax.swing.JLayeredPane.DEFAULT_LAYER);

      javax.swing.GroupLayout jInternalFrame_MultiplayerLayout = new javax.swing.GroupLayout(jInternalFrame_Multiplayer.getContentPane());
      jInternalFrame_Multiplayer.getContentPane().setLayout(jInternalFrame_MultiplayerLayout);
      jInternalFrame_MultiplayerLayout.setHorizontalGroup(
      jInternalFrame_MultiplayerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addComponent(jDesktopPane_MP, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 508, Short.MAX_VALUE)
      );
      jInternalFrame_MultiplayerLayout.setVerticalGroup(
      jInternalFrame_MultiplayerLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addComponent(jDesktopPane_MP, javax.swing.GroupLayout.Alignment.TRAILING, javax.swing.GroupLayout.DEFAULT_SIZE, 348, Short.MAX_VALUE)
      );

      setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

      jLabel1.setFont(new java.awt.Font(“Rod”, 3, 18));
      jLabel1.setText(“Cooling Project”);
      jLabel1.setBounds(10, 20, 250, 30);
      jDesktopPane_Main.add(jLabel1, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jButton_MultiPlayer.setText(“Multiplayer”);
      jButton_MultiPlayer.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton_MultiPlayerActionPerformed(evt);
      }
      });
      jButton_MultiPlayer.setBounds(10, 250, 90, 23);
      jDesktopPane_Main.add(jButton_MultiPlayer, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jButton_Readme.setText(“Leia-Me”);
      jButton_Readme.setBounds(110, 250, 80, 23);
      jDesktopPane_Main.add(jButton_Readme, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jButton_Sair.setText(“Sair”);
      jButton_Sair.setBounds(200, 250, 51, 23);
      jDesktopPane_Main.add(jButton_Sair, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jLabel_Copyrighted.setText(“Cooling Project - All rights Reserved 2012-2014”);
      jLabel_Copyrighted.setBounds(230, 320, 220, 14);
      jDesktopPane_Main.add(jLabel_Copyrighted, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jButton_Settings.setText(“Configurações”);
      jButton_Settings.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      jButton_SettingsActionPerformed(evt);
      }
      });
      jButton_Settings.setBounds(323, 10, 120, 23);
      jDesktopPane_Main.add(jButton_Settings, javax.swing.JLayeredPane.DEFAULT_LAYER);
      jTextField_TimeDate.setBounds(10, 310, 170, 20);
      jDesktopPane_Main.add(jTextField_TimeDate, javax.swing.JLayeredPane.DEFAULT_LAYER);

      jMenu1.setText(“Arquivo”);
      jMenuBar_Main.add(jMenu1);

      jMenu2.setText(“Opções”);
      jMenuBar_Main.add(jMenu2);

      jMenu3.setText(“Outros”);
      jMenuBar_Main.add(jMenu3);

      setJMenuBar(jMenuBar_Main);

      javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
      getContentPane().setLayout(layout);
      layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addComponent(jDesktopPane_Main, javax.swing.GroupLayout.DEFAULT_SIZE, 464, Short.MAX_VALUE)
      );
      layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addComponent(jDesktopPane_Main, javax.swing.GroupLayout.DEFAULT_SIZE, 344, Short.MAX_VALUE)
      );

      pack();
      }//

private void jButton_MultiPlayerActionPerformed(java.awt.event.ActionEvent evt) {

JInternalFrame internalFrame = new JInternalFrame();
 
  internalFrame = jInternalFrame_Multiplayer;
  internalFrame.setClosable(true);//Se o frame vai poder ser fechado pelo botão fechar   
  internalFrame.setIconifiable(true);//Se o frame vai poder ser minimizado.  
  internalFrame.setResizable(true);//Pemite editar o tamanho.
  internalFrame.setVisible(true);  
  jDesktopPane_Main.add(internalFrame);
  
  
    try {
        //Torna o seu painel interno visível  
        internalFrame.setMaximum(true);
    } catch (PropertyVetoException ex) {
        JOptionPane.showMessageDialog(null,ex.getMessage());
         JOptionPane.showMessageDialog(null,ex.getStackTrace());
    }
    
 
  internalFrame.setVisible(true);

}

private void jButton_SettingsActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

private void jButton_CharImageActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
    /* Set the Nimbus look and feel */
    //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
    /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
     * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
     */
    try {
        for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
            if ("Nimbus".equals(info.getName())) {
                javax.swing.UIManager.setLookAndFeel(info.getClassName());
                break;
            }
        }
    } catch (ClassNotFoundException ex) {
        java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (InstantiationException ex) {
        java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (IllegalAccessException ex) {
        java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    } catch (javax.swing.UnsupportedLookAndFeelException ex) {
        java.util.logging.Logger.getLogger(Main.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
    }
    //</editor-fold>

    /* Create and display the form */
    java.awt.EventQueue.invokeLater(new Runnable() {

        public void run() {
            new Main().setVisible(true);
        }
    });
}
// Variables declaration - do not modify                     
private javax.swing.JButton jButton_Attack;
private javax.swing.JButton jButton_CharImage;
private javax.swing.JButton jButton_MultiPlayer;
private javax.swing.JButton jButton_Readme;
private javax.swing.JButton jButton_Sair;
private javax.swing.JButton jButton_Settings;
private javax.swing.JDesktopPane jDesktopPane_MP;
private javax.swing.JDesktopPane jDesktopPane_Main;
private javax.swing.JInternalFrame jInternalFrame_Multiplayer;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabel_Copyrighted;
private javax.swing.JMenu jMenu1;
private javax.swing.JMenu jMenu2;
private javax.swing.JMenu jMenu3;
private javax.swing.JMenuBar jMenuBar_Main;
private javax.swing.JTextField jTextField_CharInfo;
private javax.swing.JTextField jTextField_NameChar;
public static javax.swing.JTextField jTextField_TimeDate;
// End of variables declaration                   

//Métodos Construídos

public static void TimeDateDisplay()
{
    
}

}[/code]

Se eu tirar o jDesktopPane_Main = new BackGround(); , ele funciona normalmente

E mais, ele nao mudou o background… continua aquele padrao azul do java

#8

Você deveria ter mudado isso dentro do initComponents. Eu não uso Netbeans, não sei como te auxiliar a fazer isso pela IDE.

#9

Pessoal peguei um código (segue o link http://javafree.uol.com.br/viewtopic.jbb?t=865627) que colocar uma imagem de fundo no JDesktopPane, segue ai:

import java.awt.Graphics;  
import java.awt.Image;  
import java.awt.Toolkit;  
import javax.swing.JDesktopPane;  
  
public class JDesktopPaneComImage extends JDesktopPane {  
  
   private static final long serialVersionUID = 1L;  
   Image imagem;  
  
   public JDesktopPaneComImage(String caminho) {  
      imagem = Toolkit.getDefaultToolkit().getImage(getClass().getResource(caminho));
   }  
  
    @Override
   public void paintComponent(Graphics g) {  
      super.paintComponent(g);  
      if(imagem != null)   {  
         g.drawImage(imagem, 0, 0, this.getWidth(), this.getHeight(), this);   
      }  
   }  
}

E testando com esse código funciona legal:

public class Teste{

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        
        JFrame teste = new JFrame();
        JDesktopPane d = new JDesktopPaneComImage("desktopSisGEAC.jpg");
        teste.setSize(400, 400);
        teste.setExtendedState(JFrame.MAXIMIZED_BOTH);
        teste.add(d);
        teste.setVisible(true);
    }

Sendo que eu tenho uma classe que extende javax.swing.JFrame e coloco o código que substitui a imagem no construtor, simplesmente não funciona, segue o código:

import javax.swing.JDesktopPane;
import javax.swing.JFrame;

/**
 *
 * @author JUNIOR
 */
public class GUIPrincipal extends javax.swing.JFrame {

    /**
     * Creates new form GUIPrincipal
     */
    
    public GUIPrincipal(){
        initComponents();
        
        this.desktop = new JDesktopPaneComImage("desktopSisGEAC.jpg");
        this.setExtendedState(JFrame.MAXIMIZED_BOTH);
        this.setLocationRelativeTo(null);
        this.add(this.desktop);
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        desktopPane = new javax.swing.JDesktopPane();
        menuBar = new javax.swing.JMenuBar();
        menuArquivo = new javax.swing.JMenu();
        itemDeMenuImportaBase = new javax.swing.JMenuItem();
        itemDeMenuExportaBase = new javax.swing.JMenuItem();
        jSeparator1 = new javax.swing.JPopupMenu.Separator();
        itemDeMenuSair = new javax.swing.JMenuItem();
        menuCadastro = new javax.swing.JMenu();
        itemDeMenuExame = new javax.swing.JMenuItem();
        itemDeMenuCadPaciente = new javax.swing.JMenuItem();
        itemDeMenuCadProfissional = new javax.swing.JMenuItem();
        itemDeMenuCadUsuario = new javax.swing.JMenuItem();
        menuRelatorio = new javax.swing.JMenu();
        itemDeMenuGeral = new javax.swing.JMenuItem();
        itemDeMenuPaciente = new javax.swing.JMenuItem();
        itemDeMenuProfissional = new javax.swing.JMenuItem();
        itemDeMenuUsuario = new javax.swing.JMenuItem();
        menuAjuda = new javax.swing.JMenu();
        itemDeMenuSobre = new javax.swing.JMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("SisGEAC - Versã 2.0");

        menuArquivo.setMnemonic('f');
        menuArquivo.setText("Arquivo");

        itemDeMenuImportaBase.setMnemonic('o');
        itemDeMenuImportaBase.setText("Importar...");
        menuArquivo.add(itemDeMenuImportaBase);

        itemDeMenuExportaBase.setMnemonic('s');
        itemDeMenuExportaBase.setText("Exportar...");
        menuArquivo.add(itemDeMenuExportaBase);
        menuArquivo.add(jSeparator1);

        itemDeMenuSair.setMnemonic('x');
        itemDeMenuSair.setText("Sair");
        itemDeMenuSair.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemDeMenuSairActionPerformed(evt);
            }
        });
        menuArquivo.add(itemDeMenuSair);

        menuBar.add(menuArquivo);

        menuCadastro.setMnemonic('e');
        menuCadastro.setText("Cadastro");

        itemDeMenuExame.setText("Exame");
        menuCadastro.add(itemDeMenuExame);

        itemDeMenuCadPaciente.setMnemonic('t');
        itemDeMenuCadPaciente.setText("Paciente");
        menuCadastro.add(itemDeMenuCadPaciente);

        itemDeMenuCadProfissional.setMnemonic('y');
        itemDeMenuCadProfissional.setText("Profissional");
        menuCadastro.add(itemDeMenuCadProfissional);

        itemDeMenuCadUsuario.setMnemonic('p');
        itemDeMenuCadUsuario.setText("Usuário");
        menuCadastro.add(itemDeMenuCadUsuario);

        menuBar.add(menuCadastro);

        menuRelatorio.setText("Relatório");

        itemDeMenuGeral.setText("Geral (tipo de exame)");
        menuRelatorio.add(itemDeMenuGeral);

        itemDeMenuPaciente.setText("Paciente");
        menuRelatorio.add(itemDeMenuPaciente);

        itemDeMenuProfissional.setText("Profissional");
        menuRelatorio.add(itemDeMenuProfissional);

        itemDeMenuUsuario.setText("Usuario");
        menuRelatorio.add(itemDeMenuUsuario);

        menuBar.add(menuRelatorio);

        menuAjuda.setMnemonic('h');
        menuAjuda.setText("Ajudar");

        itemDeMenuSobre.setMnemonic('a');
        itemDeMenuSobre.setText("Sobre");
        itemDeMenuSobre.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                itemDeMenuSobreActionPerformed(evt);
            }
        });
        menuAjuda.add(itemDeMenuSobre);

        menuBar.add(menuAjuda);

        setJMenuBar(menuBar);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(desktopPane, javax.swing.GroupLayout.DEFAULT_SIZE, 400, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(desktopPane, javax.swing.GroupLayout.DEFAULT_SIZE, 279, Short.MAX_VALUE)
        );

        pack();
    }// </editor-fold>                        

    private void itemDeMenuSairActionPerformed(java.awt.event.ActionEvent evt) {                                               
        System.exit(0);
    }                                                                                             

    // Variables declaration - do not modify                     
    private javax.swing.JDesktopPane desktopPane;
    private javax.swing.JMenuItem itemDeMenuCadPaciente;
    private javax.swing.JMenuItem itemDeMenuCadProfissional;
    private javax.swing.JMenuItem itemDeMenuCadUsuario;
    private javax.swing.JMenuItem itemDeMenuExame;
    private javax.swing.JMenuItem itemDeMenuExportaBase;
    private javax.swing.JMenuItem itemDeMenuGeral;
    private javax.swing.JMenuItem itemDeMenuImportaBase;
    private javax.swing.JMenuItem itemDeMenuPaciente;
    private javax.swing.JMenuItem itemDeMenuProfissional;
    private javax.swing.JMenuItem itemDeMenuSair;
    private javax.swing.JMenuItem itemDeMenuSobre;
    private javax.swing.JMenuItem itemDeMenuUsuario;
    private javax.swing.JPopupMenu.Separator jSeparator1;
    private javax.swing.JMenu menuAjuda;
    private javax.swing.JMenu menuArquivo;
    private javax.swing.JMenuBar menuBar;
    private javax.swing.JMenu menuCadastro;
    private javax.swing.JMenu menuRelatorio;
    // End of variables declaration                   
    private JDesktopPane desktop;
}

A referida Classe é chamada na seguinte classe Principal:

import java.io.IOException;
import net.mastersoft.sisgeac.visao.gui.GUIPrincipal;

public class Principal {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) throws IOException {
        
        GUIPrincipal guiPrincipal = new GUIPrincipal();
        guiPrincipal.setVisible(true);
    }
}

Porque dessa forma a imagem não esta sendo carregada?

#10

Tenta desse Jeito. No meu caso funcionou.

[code]import java.awt.Graphics;
import java.awt.Image;
import javax.swing.JDesktopPane;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class Frame extends JFrame {

private JMenuBar menuBar;
private JMenu menu;
private JDesktopPane desktopPane;
private JMenuItem menuItem;

private Image img;
//private InternalFrame1 if1;

public Frame() {
	super("Frame");
	//setExtendedState(MAXIMIZED_BOTH);
	setSize(400,300);
	setLocationRelativeTo(null);
	
	try{  
        img = javax.imageio.ImageIO.read(new java.net.URL(getClass().getResource("gon.jpg"), "gon.jpg"));  
	}  
  catch(Exception e){
	  e.printStackTrace();
	}

	 desktopPane = new JDesktopPane(){
		public void paintComponent(Graphics g){  
	           super.paintComponent(g);  
	           if(img != null){  
	               g.drawImage(img, 0,0,this.getWidth(),this.getHeight(),this);  
	           }  
	           else{  
	               g.drawString("Image not found", 50,50);    
	     	   }
			}
		}; 	
	
	menuBar = new JMenuBar();
	
	setJMenuBar(menuBar);
	
	menu = new JMenu("Opções");
	menuBar.add(menu);
	
	menuItem = new JMenuItem("MenuItem");
	
	/**
	menuItem.addActionListener(new ActionListener(){
		public void actionPerformed(ActionEvent e){
			if(if1 == null){
				if1 = new InternalFrame1();
				if1.setVisible(true);
				desktopPane.add(if1);
			}
			else if(!if1.isVisible()){
				if1.setVisible(true);
				desktopPane.add(if1);
			}
	}} );
	**/

	setContentPane(desktopPane);
	
	menu.add(menuItem);
}	

public static void main(String[] args) {
	Frame frame = new Frame();
	frame.setVisible(true);
	frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}

}[/code]

#11