Olá pessoal, Estou confuso com o seguinte: porque quando eu uso o método setIcon() e o setSize() de um JLabel em um botão, por exemplo, não é executado os dois no mesmo click? Vou postar aqui o código que to usando de t…

[RESOLVIDO] Mudança de imagem e redimensionamento do JLabel

/** * * @author Silvio Filho */ public class TesteResize extends javax.swing.JFrame { public TesteResize() { initComponents(); } private void initComponents() { jLabel1 = new javax.swing.JLabel(); jButton1 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/teste1.gif"))); jLabel1.setBorder(javax.swing.BorderFactory.createEtchedBorder()); jButton1.setText("Mudar Figura"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING) .add(layout.createSequentialGroup() .addContainerGap() .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING) .add(jLabel1) .add(org.jdesktop.layout.GroupLayout.TRAILING, jButton1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 133, Short.MAX_VALUE)) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING) .add(layout.createSequentialGroup() .addContainerGap() .add(jLabel1) .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED, 51, Short.MAX_VALUE) .add(jButton1) .addContainerGap()) ); pack(); }// </editor-fold> private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { jLabel1.setIcon( new javax.swing.ImageIcon(getClass().getResource("/teste2.gif")) ); jLabel1.setSize(100,100); } public static void main(String args[]) { java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new TesteResize().setVisible(true); } }); } // Variables declaration - do not modify private javax.swing.JButton jButton1; private javax.swing.JLabel jLabel1; // End of variables declaration }

1 Resposta

brothermclaud 11 de jul. de 2006

Olá pessoal,
Consegui resolver o problema usando o método setMinimumSize() ao invés de setSize(). Abaixo segue o código completo (o .jar das figuras ainda vale).

import java.awt.Dimension;

/**
 *
 * @author  Silvio Filho
 */
public class TesteResize extends javax.swing.JFrame {

    public TesteResize() {
        initComponents();
    }

    private void initComponents() {
        jPanel1 = new javax.swing.JPanel();
        jLabel1 = new javax.swing.JLabel();
        jButton1 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/teste1.gif")));
        jLabel1.setBorder(javax.swing.BorderFactory.createEtchedBorder());

        org.jdesktop.layout.GroupLayout jPanel1Layout = new org.jdesktop.layout.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jLabel1)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(jPanel1Layout.createSequentialGroup()
                .add(jLabel1)
                .addContainerGap(29, Short.MAX_VALUE))
        );

        jButton1.setText("Mudar Figura");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(layout.createSequentialGroup()
                        .add(jPanel1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 175, Short.MAX_VALUE)
                        .addContainerGap())
                    .add(layout.createSequentialGroup()
                        .add(jButton1, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 165, Short.MAX_VALUE)
                        .add(20, 20, 20))))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .addContainerGap()
                .add(jPanel1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(jButton1)
                .addContainerGap(29, Short.MAX_VALUE))
        );
        pack();
    }
    
    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {                                         
        jLabel1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/teste2.gif")));
        jLabel1.setMinimumSize( new Dimension(100, 100) );
    }                                        
    
    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new TesteResize().setVisible(true);
            }
        });
    }

    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JPanel jPanel1;
}

Obrigado aqueles que leram!!!

1 Resposta

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