Changement LookAndFeel de JTable de composants personnalisés

Question

je changeais la LookAndFeel d'une JTable peuplée de Custom classe étendue de JPanel, mais je ne peux pas le faire.

J'ai édité simplement mon code, mais c'est quand même long.

public class LAF_TableCustomContainer extends JFrame { 

    public LAF_TableCustomContainer() { 
     setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); 
     setSize(300, 300); 
     setVisible(true); 
     setLocationRelativeTo(null); 
    } 

    public static void changeLAF(Container container, String laf) { 
    try { 
     UIManager.setLookAndFeel(laf); 
    } catch (ClassNotFoundException | InstantiationException 
     | IllegalAccessException | UnsupportedLookAndFeelException e) { 
    } 
    SwingUtilities.updateComponentTreeUI(container); 
    } 

    static final JFrame frame = new JFrame(); 

    public JComponent makeUI() { 

    String[] hdrsObjects = {"PanelSpinnerRadioButton Class Column"}; 
    Object[][] objectMatrix = new Object[3][1]; 
    objectMatrix[0][0] = new PanelSpinnerRadioButtonData(false, 10, 40); 
    objectMatrix[1][0] = new PanelSpinnerRadioButtonData(true, 20, 40); 
    objectMatrix[2][0] = new PanelSpinnerRadioButtonData(false, 30, 40); 

    JTable table = new JTable(new DefaultTableModel(objectMatrix, hdrsObjects)); 
    JScrollPane scrollPane = new JScrollPane(table); 
    scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); 
    scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); 
    table.setRowHeight(30); 

    TableColumn tc = table.getColumn("PanelSpinnerRadioButton Class Column"); 
    tc.setCellRenderer(new PSRBTableCellRenderer()); 
    tc.setCellEditor(new PSRBTableCellEditor()); 

    JPanel pH = new JPanel(); 
    pH.setLayout(new BoxLayout(pH, BoxLayout.LINE_AXIS)); 

    JButton bMetal = new JButton("Metal"); 
    bMetal.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
      changeLAF(LAF_TableCustomContainer.this, "javax.swing.plaf.metal.MetalLookAndFeel"); 
      changeLAF(table, "javax.swing.plaf.metal.MetalLookAndFeel"); 
      changeLAF(scrollPane, "javax.swing.plaf.metal.MetalLookAndFeel"); 
      changeLAF((JPanel)table.getModel().getValueAt(0, 0), "javax.swing.plaf.metal.MetalLookAndFeel"); 
     } 
    }); 

    JButton bMotif = new JButton("Motif"); 
    bMotif.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
      changeLAF(LAF_TableCustomContainer.this, "com.sun.java.swing.plaf.motif.MotifLookAndFeel"); 
      changeLAF(table, "com.sun.java.swing.plaf.motif.MotifLookAndFeel"); 
      changeLAF(scrollPane, "com.sun.java.swing.plaf.motif.MotifLookAndFeel"); 
      changeLAF((JPanel)table.getModel().getValueAt(0, 0), "com.sun.java.swing.plaf.motif.MotifLookAndFeel"); 
     } 
    }); 

    JButton bNimbus = new JButton("Nimbus"); 
    bNimbus.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
      changeLAF(LAF_TableCustomContainer.this, "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
      changeLAF(table, "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
      changeLAF(scrollPane, "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
      changeLAF((JPanel)table.getModel().getValueAt(0, 0), "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
     } 
    }); 
    pH.add(bMetal); 
    pH.add(bMotif); 
    pH.add(bNimbus); 

    JPanel pV = new JPanel(); 
    pV.setLayout(new BoxLayout(pV, BoxLayout.PAGE_AXIS)); 
    pV.add(pH); 
    pV.add(scrollPane); 
    return pV; 
    } 
    public static void main(String... args) { 
    EventQueue.invokeLater(() -> { 
     LAF_TableCustomContainer f = new LAF_TableCustomContainer(); 
     f.getContentPane().add(f.makeUI()); 
    }); 
    } 
} 

class PanelSpinnerRadioButtonData { 
    private boolean opt02 = false; 
    private Integer from = 0; 
    private Integer size = 1; 

    PanelSpinnerRadioButtonData() { 
    this(false, 5, 10); 
    } 
    PanelSpinnerRadioButtonData(boolean opt02, Integer from, Integer size) { 
    this.opt02 = opt02; 
    this.from = from; 
    this.size = size; 
    } 
    public boolean getOption() { 
    return opt02; 
    } 
    public Integer getFrom() { 
    return from; 
    } 
    public Integer getSize() { 
    return size; 
    } 
} 

class PanelSpinnerRadioButton extends JPanel { 
    public final JRadioButton jrbOption01 = new JRadioButton("01"); 
    public final JRadioButton jrbOption02 = new JRadioButton("12"); 
    public final JSpinner jspnValues = new JSpinner(new SpinnerNumberModel(5, 0, 10, 1)); 

    private final JPanel panel = new JPanel(); 

    PanelSpinnerRadioButton() { 
    this(new PanelSpinnerRadioButtonData(false, 20, 40)); 
    } 

    PanelSpinnerRadioButton(PanelSpinnerRadioButtonData data) { 
    super(); 

    panel.setLayout(new BoxLayout(panel, BoxLayout.LINE_AXIS)); 
    panel.add(jrbOption01); 
    panel.add(jrbOption02); 
    panel.add(Box.createRigidArea(new Dimension(5, 0))); 
    panel.add(new JSeparator(JSeparator.VERTICAL)); 
    panel.add(Box.createRigidArea(new Dimension(5, 0))); 
    panel.add(jspnValues); 
    ButtonGroup bg = new ButtonGroup(); 
    bg.add(jrbOption01); 
    bg.add(jrbOption02); 
    ((SpinnerNumberModel) jspnValues.getModel()).setMaximum(data.getSize()); 
    setData(data); 

    init(); 
    } 

    private void init() { 
    setLayout(new BoxLayout(this, BoxLayout.LINE_AXIS)); 
    setBackground(new Color(0, 0, 0, 0)); 
    add(panel); 
    } 

    public void setData(PanelSpinnerRadioButtonData data) { 
    if (data.getOption()) { 
     jrbOption02.setSelected(true); 
    } else { 
     jrbOption01.setSelected(true); 
    } 
    ((SpinnerNumberModel) jspnValues.getModel()).setValue(data.getFrom()); 
    } 

    // Used in PSRBTableCellEditor.getCellEditorValue() 
    public PanelSpinnerRadioButtonData getData() { 
    return new PanelSpinnerRadioButtonData(
      jrbOption02.isSelected(), 
      (Integer) ((SpinnerNumberModel) jspnValues.getModel()).getValue(), 
      (Integer) ((SpinnerNumberModel) jspnValues.getModel()).getMaximum()); 
    } 
} 

class PSRBTableCellRenderer implements TableCellRenderer { 
    private final PanelSpinnerRadioButton renderer = new PanelSpinnerRadioButton(); 
    @Override public Component getTableCellRendererComponent(
     JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
    if (value instanceof PanelSpinnerRadioButtonData) { 
     renderer.setData((PanelSpinnerRadioButtonData) value); 
    } 
    return renderer; 
    } 
} 

class PSRBTableCellEditor extends AbstractCellEditor implements TableCellEditor { 
    private final PanelSpinnerRadioButton editor = new PanelSpinnerRadioButton(); 
    @Override public Object getCellEditorValue() { 
    return editor.getData(); 
    } 
    @Override public Component getTableCellEditorComponent(
     JTable table, Object value, boolean isSelected, int row, int column) { 
    if (value instanceof PanelSpinnerRadioButtonData) { 
     editor.setData((PanelSpinnerRadioButtonData) value); 
    } 
    return editor; 
    } 
} 

Lorsque j'appuie sur une touche tous les changements de JFrame, à l'exception des cellules de JTable, contenant mon habitude JPanel.

J'ai essayé de forcer seulement la première cellule ...

changeLAF((JPanel)table.getModel().getValueAt(0, 0), "javax.swing.plaf.metal.MetalLookAndFeel"); 

Mais je suis Exception:

Exception in thread "AWT-EventQueue-0" java.lang.ClassCastException: PanelSpinnerRadioButtonData cannot be cast to javax.swing.JPanel 

Answer 1

• La limitation de la méthode SwingUtilities#updateComponentTreeUI(...) est que la cellule rendu LookAndFeel ne peut pas changer
  • Depuis PSRBTableCellRenderer n'étend pas JComponent, ce n'est pas soumis à LookAndFeel mise à jour dans la méthode SwingUtilities # updateComponentTreeUI (...)

// @see javax/swing/SwingUtilities.java 
public static void updateComponentTreeUI(Component c) { 
    updateComponentTreeUI0(c); 
    c.invalidate(); 
    c.validate(); 
    c.repaint(); 
} 
private static void updateComponentTreeUI0(Component c) { 
    if (c instanceof JComponent) { 
     JComponent jc = (JComponent) c; 
     jc.updateUI(); 
     JPopupMenu jpm =jc.getComponentPopupMenu(); 
     if(jpm != null) { 
      updateComponentTreeUI(jpm); 
     } 
    } 
    Component[] children = null; 
    if (c instanceof JMenu) { 
     children = ((JMenu)c).getMenuComponents(); 
    } 
    else if (c instanceof Container) { 
     children = ((Container)c).getComponents(); 
    } 
    if (children != null) { 
     for (Component child : children) { 
      updateComponentTreeUI0(child); 
     } 
    } 
} 

Vous pouvez éviter cela en redéfinissant la méthode JTable#updateUI() et de recréer la cellule rendu et éditeur.

JTable table = new JTable(new DefaultTableModel(objectMatrix, hdrsObjects)) { 
    @Override public void updateUI() { 
    super.updateUI(); 
    setRowHeight(30); 
    TableColumn tc = getColumn("PanelSpinnerRadioButton Class Column"); 
    tc.setCellRenderer(new PSRBTableCellRenderer()); 
    tc.setCellEditor(new PSRBTableCellEditor()); 
    } 
}; 

LAF_TableCustomContainer2.java

import java.awt.*; 
import java.awt.event.*; 
import javax.swing.*; 
import javax.swing.table.*; 

public class LAF_TableCustomContainer2 extends JFrame { 
    public LAF_TableCustomContainer2() { 
    setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); 
    setSize(300, 300); 
    setVisible(true); 
    setLocationRelativeTo(null); 
    } 

    public static void changeLAF(Container container, String laf) { 
    try { 
     UIManager.setLookAndFeel(laf); 
    } catch (ClassNotFoundException | InstantiationException 
      | IllegalAccessException | UnsupportedLookAndFeelException e) { 
    } 
    SwingUtilities.updateComponentTreeUI(container); 
    } 

    static final JFrame frame = new JFrame(); 

    public JComponent makeUI() { 
    JPanel pV = new JPanel(); 
     pV.setLayout(new BoxLayout(pV, BoxLayout.PAGE_AXIS)); 

    String[] hdrsObjects = {"PanelSpinnerRadioButton Class Column"}; 
    Object[][] objectMatrix = new Object[3][1]; 
    objectMatrix[0][0] = new PanelSpinnerRadioButtonData(false, 10, 40); 
    objectMatrix[1][0] = new PanelSpinnerRadioButtonData(true, 20, 40); 
    objectMatrix[2][0] = new PanelSpinnerRadioButtonData(false, 30, 40); 

     JTable table = new JTable(new DefaultTableModel(objectMatrix, hdrsObjects)) { 
      @Override public void updateUI() { 
       super.updateUI(); 
       setRowHeight(30); 
       TableColumn tc = getColumn("PanelSpinnerRadioButton Class Column"); 
       tc.setCellRenderer(new PSRBTableCellRenderer()); 
       tc.setCellEditor(new PSRBTableCellEditor()); 
      } 
     }; 
    JScrollPane scrollPane = new JScrollPane(table); 
    scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); 
    scrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); 
//  table.setRowHeight(30); 
//  TableColumn tc = table.getColumn("PanelSpinnerRadioButton Class Column"); 
//  tc.setCellRenderer(new PSRBTableCellRenderer()); 
//  tc.setCellEditor(new PSRBTableCellEditor()); 

    JPanel pH = new JPanel(); 
    pH.setLayout(new BoxLayout(pH, BoxLayout.LINE_AXIS)); 

    JButton bMetal = new JButton("Metal"); 
    bMetal.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
     changeLAF(pV, "javax.swing.plaf.metal.MetalLookAndFeel"); 
     } 
    }); 

    JButton bMotif = new JButton("Motif"); 
    bMotif.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
     changeLAF(pV, "com.sun.java.swing.plaf.motif.MotifLookAndFeel"); 
     } 
    }); 

    JButton bNimbus = new JButton("Nimbus"); 
    bNimbus.addActionListener(new ActionListener() { 
     public void actionPerformed(ActionEvent evt) { 
     changeLAF(pV, "javax.swing.plaf.nimbus.NimbusLookAndFeel"); 
     } 
    }); 
    pH.add(bMetal); 
    pH.add(bMotif); 
    pH.add(bNimbus); 

    pV.add(pH); 
    pV.add(scrollPane); 
    return pV; 
    } 
    public static void main(String... args) { 
    EventQueue.invokeLater(() -> { 
     LAF_TableCustomContainer2 f = new LAF_TableCustomContainer2(); 
     f.getContentPane().add(f.makeUI()); 
    }); 
    } 
} 

class PanelSpinnerRadioButtonData { 
    private boolean opt02 = false; 
    private Integer from = 0; 
    private Integer size = 1; 

    PanelSpinnerRadioButtonData() { 
    this(false, 5, 10); 
    } 
    PanelSpinnerRadioButtonData(boolean opt02, Integer from, Integer size) { 
    this.opt02 = opt02; 
    this.from = from; 
    this.size = size; 
    } 
    public boolean getOption() { 
    return opt02; 
    } 
    public Integer getFrom() { 
    return from; 
    } 
    public Integer getSize() { 
    return size; 
    } 
} 

class PanelSpinnerRadioButton extends JPanel { 
    public final JRadioButton jrbOption01 = new JRadioButton("01"); 
    public final JRadioButton jrbOption02 = new JRadioButton("12"); 
    public final JSpinner jspnValues = new JSpinner(new SpinnerNumberModel(5, 0, 10, 1)); 

    private final JPanel panel = new JPanel(); 

    PanelSpinnerRadioButton() { 
    this(new PanelSpinnerRadioButtonData(false, 20, 40)); 
    } 

    PanelSpinnerRadioButton(PanelSpinnerRadioButtonData data) { 
    super(); 

    panel.setLayout(new BoxLayout(panel, BoxLayout.LINE_AXIS)); 
    panel.add(jrbOption01); 
    panel.add(jrbOption02); 
    panel.add(Box.createRigidArea(new Dimension(5, 0))); 
    panel.add(new JSeparator(JSeparator.VERTICAL)); 
    panel.add(Box.createRigidArea(new Dimension(5, 0))); 
    panel.add(jspnValues); 
    ButtonGroup bg = new ButtonGroup(); 
    bg.add(jrbOption01); 
    bg.add(jrbOption02); 
    ((SpinnerNumberModel) jspnValues.getModel()).setMaximum(data.getSize()); 
    setData(data); 

    init(); 
    } 

    private void init() { 
    setLayout(new BoxLayout(this, BoxLayout.LINE_AXIS)); 
    setBackground(new Color(0, 0, 0, 0)); 
    add(panel); 
    } 

    public void setData(PanelSpinnerRadioButtonData data) { 
    if (data.getOption()) { 
     jrbOption02.setSelected(true); 
    } else { 
     jrbOption01.setSelected(true); 
    } 
    ((SpinnerNumberModel) jspnValues.getModel()).setValue(data.getFrom()); 
    } 

    // Used in PSRBTableCellEditor.getCellEditorValue() 
    public PanelSpinnerRadioButtonData getData() { 
    return new PanelSpinnerRadioButtonData(
      jrbOption02.isSelected(), 
      (Integer)((SpinnerNumberModel) jspnValues.getModel()).getValue(), 
      (Integer)((SpinnerNumberModel) jspnValues.getModel()).getMaximum()); 
    } 
} 

class PSRBTableCellRenderer implements TableCellRenderer { 
    private final PanelSpinnerRadioButton renderer = new PanelSpinnerRadioButton(); 
    @Override public Component getTableCellRendererComponent(
    JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
    if (value instanceof PanelSpinnerRadioButtonData) { 
     renderer.setData((PanelSpinnerRadioButtonData) value); 
    } 
    return renderer; 
    } 
} 

class PSRBTableCellEditor extends AbstractCellEditor implements TableCellEditor { 
    private final PanelSpinnerRadioButton editor = new PanelSpinnerRadioButton(); 
    @Override public Object getCellEditorValue() { 
    return editor.getData(); 
    } 
    @Override public Component getTableCellEditorComponent(
    JTable table, Object value, boolean isSelected, int row, int column) { 
    if (value instanceof PanelSpinnerRadioButtonData) { 
     editor.setData((PanelSpinnerRadioButtonData) value); 
    } 
    return editor; 
    } 
}