JComboBox, неправильная перерисовка после выбора - Java
Формулировка задачи:
Добрый день. Столкнулся вот с такой проблемой: после выбора объекта в JComboBox он неправильно перерисовывается.
Пример:
После выбора элемента и переходе, скажем уже на JSpinner, этот JComboBox рисуется и там.
Использовал стандартный редактор форм в NetBeans.
Собственно почему так происходит? и как решать?
Решение задачи: «JComboBox, неправильная перерисовка после выбора»
textual
Листинг программы
import java.awt.Color;
public class JMainFrame extends javax.swing.JFrame {
public JMainFrame() {
initComponents();
// Радио-буттоны в группу
buttonGroup1.add(jRadioButton_Epicycloid);
buttonGroup1.add(jRadioButton_Hypocycloid);
jRadioButton_Hypocycloid.setSelected(true);
}
/**
* 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() {
buttonGroup1 = new javax.swing.ButtonGroup();
jRadioButton_Epicycloid = new javax.swing.JRadioButton();
jRadioButton_Hypocycloid = new javax.swing.JRadioButton();
label1 = new java.awt.Label();
label2 = new java.awt.Label();
label3 = new java.awt.Label();
label4 = new java.awt.Label();
jSpinner_scale = new javax.swing.JSpinner();
jSpinner_k = new javax.swing.JSpinner();
jSpinner_R = new javax.swing.JSpinner();
jSpinner_r = new javax.swing.JSpinner();
button_Print = new java.awt.Button();
jComboBox1 = new javax.swing.JComboBox<>();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
setName("MainFrame"); // NOI18N
setResizable(false);
setSize(new java.awt.Dimension(468, 148));
jRadioButton_Epicycloid.setText("Эпициклоида");
jRadioButton_Hypocycloid.setText("Гипоциклоида");
label1.setText("Масштаб");
label2.setText("k");
label3.setText("R");
label4.setText("r");
jSpinner_scale.setModel(new javax.swing.SpinnerNumberModel(Float.valueOf(1.0f), Float.valueOf(1.0f), Float.valueOf(50.0f), Float.valueOf(0.1f)));
jSpinner_k.setModel(new javax.swing.SpinnerNumberModel(1, 1, 200, 1));
jSpinner_k.setEnabled(false);
jSpinner_R.setModel(new javax.swing.SpinnerNumberModel(1, 1, 200, 1));
jSpinner_r.setModel(new javax.swing.SpinnerNumberModel(1, 1, 200, 1));
button_Print.setLabel("Нарисовать");
button_Print.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
button_PrintActionPerformed(evt);
}
});
jComboBox1.setModel(new javax.swing.DefaultComboBoxModel<>(new String[] { "black", "red", "green", "yellow" }));
javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
getContentPane().setLayout(layout);
layout.setHorizontalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jRadioButton_Hypocycloid)
.addComponent(jRadioButton_Epicycloid)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, 80, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(21, 21, 21)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addGap(40, 40, 40)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(label2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(label3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(label4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))))
.addGap(29, 29, 29)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jSpinner_scale, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jSpinner_k, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jSpinner_R, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jSpinner_r, javax.swing.GroupLayout.PREFERRED_SIZE, 50, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGap(10, 10, 10)
.addComponent(button_Print, javax.swing.GroupLayout.PREFERRED_SIZE, 173, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(16, Short.MAX_VALUE))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addComponent(jRadioButton_Hypocycloid)
.addGap(7, 7, 7)
.addComponent(jRadioButton_Epicycloid)
.addGap(17, 17, 17)
.addComponent(jComboBox1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(10, 10, 10)
.addComponent(label1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(10, 10, 10)
.addComponent(label2, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(10, 10, 10)
.addComponent(label3, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(10, 10, 10)
.addComponent(label4, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(11, 11, 11)
.addComponent(jSpinner_scale, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(10, 10, 10)
.addComponent(jSpinner_k, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(11, 11, 11)
.addComponent(jSpinner_R, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(11, 11, 11)
.addComponent(jSpinner_r, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGap(11, 11, 11)
.addComponent(button_Print, javax.swing.GroupLayout.PREFERRED_SIZE, 112, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addContainerGap(17, Short.MAX_VALUE))
);
pack();
}// </editor-fold>
private void button_PrintActionPerformed(java.awt.event.ActionEvent evt) {
Color color;
try {
java.lang.reflect.Field field = Color.class.getField((String)jComboBox1.getModel().getSelectedItem());
color = (Color)field.get(null);
} catch (Exception e) {
color = null; // Not defined
}
JPaintFrame pFrame = new JPaintFrame(
(int)jSpinner_k.getValue(),
(int)jSpinner_R.getValue(),
(int)jSpinner_r.getValue(),
(float)jSpinner_scale.getValue(),
color,
jRadioButton_Epicycloid.isSelected(),
jRadioButton_Hypocycloid.isSelected()
);
}
/**
* @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 [url]http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html[/url]
*/
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(JMainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(JMainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(JMainFrame.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(JMainFrame.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 JMainFrame().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.ButtonGroup buttonGroup1;
private java.awt.Button button_Print;
private javax.swing.JComboBox<String> jComboBox1;
private javax.swing.JRadioButton jRadioButton_Epicycloid;
private javax.swing.JRadioButton jRadioButton_Hypocycloid;
private javax.swing.JSpinner jSpinner_R;
private javax.swing.JSpinner jSpinner_k;
private javax.swing.JSpinner jSpinner_r;
private javax.swing.JSpinner jSpinner_scale;
private java.awt.Label label1;
private java.awt.Label label2;
private java.awt.Label label3;
private java.awt.Label label4;
// End of variables declaration
}
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