更改用戶自定義的表格組件

的LookAndFeel中，我改變一個JTable的填充Custom類擴展JPanel的的LookAndFeel的，但我不能這樣做。更改用戶自定義的表格組件

我編輯簡單我的代碼，但仍然是很長。

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; 
    } 
}

當我按下按鈕的一些JTable中除外的所有細胞JFrame的變化，包括我的自定義的JPanel。

我試圖迫使僅第一個單元格...

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

但我得到異常：

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

來源

2017-06-02 QA_Col

的SwingUtilities#updateComponentTreeUI(...)方法的侷限是細胞渲染LookAndFeel不能改變
- 由於PSRBTableCellRenderer不延伸JComponent，它不受在SwingUtilities # updateComponentTreeUI (...)方法LookAndFeel更新

// @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); 
     } 
    } 
}

您可以通過重寫JTable#updateUI()方法和重建細胞避免這種渲染器和編輯器。

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; 
    } 
}

來源

2017-06-02 07:08:05 aterai

謝謝您的寶貴幫助。我有一個問題，當我分配另一個自定義組件時，如何動態執行此操作。 'table.setModel（新的DefaultTableModel（新對象[] [] {...}，新的String [] {...}））;' –

更改用戶自定義的表格組件

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