JTable中prepareEditor如何工作

Question

我不明白prepareEditor是如何工作的，我爲prepareRenderer與行動從prepareEditor不能設置可見規則，正如我在附加的圖像捕捉

規則1。 st行按照我的預期工作，其他TableCells是不可見的，如果JCheckBox沒有被選中（使用JTable選擇hightlighter），但是如果我在1.st TableColumn中選擇JCheckBox，那麼我不能只顯示Rule + Mail TableColumn，只顯示TableRow中的所有組件，我該如何實現這一點

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

public class TableWithCheckBoxOrBlank { 

    private Object[] columns = new Object[]{ 
     "Select", "Name", "Rule", "Mail", "Include", "Phone"}; 
    private Object[][] data = { 
     {false, "Bill", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "Edd", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "Paul", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "ZOO", false, "Blabla@bla", false, "00 000 000"}}; 

    public void makeUI() { 
     DefaultTableModel model = new DefaultTableModel(data, columns) { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public boolean isCellEditable(int row, int column) { 
       return column != 1; 
      } 

      @Override 
      public Class getColumnClass(int columnIndex) { 
       switch (columnIndex) { 
        case 0: 
         return Boolean.class; 
        case 1: 
         return String.class; 
        case 2: 
         return Boolean.class; 
        case 3: 
         return String.class; 
        case 4: 
         return Boolean.class; 
        case 5: 
         return String.class; 
       } 
       return null; 
      } 
     }; 
     final JTable table = new JTable(model) { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { 
       Component c = super.prepareRenderer(renderer, row, column); 
       if (column == 0 || column == 1 || (Boolean) getValueAt(row, 0)) { 
        return c; 
       } 
       return Box.createRigidArea(c.getPreferredSize()); 
      } 

      @Override 
      public Component prepareEditor(TableCellEditor editor, int row, int column) { 
       Component c = super.prepareEditor(editor, row, column); 
       if (column == 0 || column == 1 || (Boolean) getValueAt(row, 0)) { 
        return c; 
       } 
       return Box.createRigidArea(c.getPreferredSize()); 
      } 
     }; 
     model.addTableModelListener(new TableModelListener() { 

      @Override 
      public void tableChanged(TableModelEvent e) { 
       if (e.getColumn() == 0) { 
        if ((Boolean) table.getValueAt(table.getSelectedRow(), 0)) { 
         table.setValueAt(Boolean.FALSE, table.getSelectedRow(), 2); 
        } 
        table.repaint(); 
       } 
      } 
     }); 
     JScrollPane scroll = new JScrollPane(table); 
     table.setPreferredScrollableViewportSize(table.getPreferredSize()); 
     JFrame frame = new JFrame("Table With Check Box Or Blank"); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.setLocation(150, 150); 
     frame.add(scroll); 
     frame.pack(); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       new TableWithCheckBoxOrBlank().makeUI(); 
      } 
     }); 
    } 
} 

+++

編輯真的沒有baterry在內，我看不到樹不見林:-(

感謝@camickr對眼睛之間踢，有很多大的錯誤/問題無處不在...

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

public class TableWithCheckBoxOrBlank { 

    private Object[] columns = new Object[]{ 
     "Select", "Name", "Rule", "Mail", "Include", "Phone"}; 
    private Object[][] data = { 
     {false, "Bill", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "Edd", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "Paul", false, "Blabla@bla", false, "00 000 000"}, 
     {false, "ZOO", false, "Blabla@bla", false, "00 000 000"}}; 

    public void makeUI() { 
     DefaultTableModel model = new DefaultTableModel(data, columns) { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public boolean isCellEditable(int row, int column) { 
       if (column == 0 || column == 2 || column == 4) { 
        return true; 
       } 
       if (column == 1 || column == 3 || column == 5) { 
        return false; 
       } 
       return (Boolean) getValueAt(row, 0); 
      } 

      @Override 
      public Class getColumnClass(int columnIndex) { 
       switch (columnIndex) { 
        case 0: 
         return Boolean.class; 
        case 1: 
         return String.class; 
        case 2: 
         return Boolean.class; 
        case 3: 
         return String.class; 
        case 4: 
         return Boolean.class; 
        case 5: 
         return String.class; 
       } 
       return null; 
      } 
     }; 
     final JTable table = new JTable(model) { 

      private static final long serialVersionUID = 1L; 

      @Override 
      public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { 
       Component c = super.prepareRenderer(renderer, row, column); 
       if ((column == 4 || column == 5) && (Boolean) getValueAt(row, 2)) { 
        return c; 
       } else if ((column == 2 || column == 3) && (Boolean) getValueAt(row, 0)) { 
        return c; 
       } else if (column == 0 || column == 1) { 
        return c; 
       } 
       return Box.createRigidArea(c.getPreferredSize()); 
      } 

      @Override 
      public Component prepareEditor(TableCellEditor editor, int row, int column) { 
       Component c = super.prepareEditor(editor, row, column); 
       if ((column == 4 || column == 5) && (Boolean) getValueAt(row, 2)) { 
        return c; 
       } else if ((column == 2 || column == 3) && (Boolean) getValueAt(row, 0)) { 
        return c; 
       } else if (column == 0 || column == 1) { 
        return c; 
       } 
       return Box.createRigidArea(c.getPreferredSize()); 
      } 
     }; 
     model.addTableModelListener(new TableModelListener() { 

      @Override 
      public void tableChanged(TableModelEvent e) { 
       if (e.getColumn() == 0) { 
        if ((Boolean) table.getValueAt(table.getSelectedRow(), 0)) { 
         table.setValueAt(Boolean.FALSE, table.getSelectedRow(), 2); 
        } 
        table.repaint(); 
       } else if (e.getColumn() == 2) { 
        if ((Boolean) table.getValueAt(table.getSelectedRow(), 2)) { 
         table.setValueAt(Boolean.FALSE, table.getSelectedRow(), 4); 
        } 
        table.repaint(); 
       } 
      } 
     }); 
     JScrollPane scroll = new JScrollPane(table); 
     table.setPreferredScrollableViewportSize(table.getPreferredSize()); 
     JFrame frame = new JFrame("Table With Check Box Or Blank"); 
     frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); 
     frame.setLocation(150, 150); 
     frame.add(scroll); 
     frame.pack(); 
     frame.setVisible(true); 
    } 

    public static void main(String[] args) { 
     SwingUtilities.invokeLater(new Runnable() { 

      @Override 
      public void run() { 
       new TableWithCheckBoxOrBlank().makeUI(); 
      } 
     }); 
    } 
} 

Answer 1

我認爲prepareRenderer(...)代碼應該是：

 public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { 
      Component c = super.prepareRenderer(renderer, row, column); 

      if ((column == 2 || column == 3) && (Boolean)getValueAt(row, 0)) { 
       return c; 
      } 

     // if (column == 0 || column == 1 || (Boolean) getValueAt(row, 0)) { 
      if (column == 0 || column == 1) { 
       return c; 
      } 

      return Box.createRigidArea(c.getPreferredSize()); 
     } 

那麼你應該擺脫prepareEditor(...)代碼。相反，你應該在isCellEditable(...)方法中有更多的邏輯。例如：

 public boolean isCellEditable(int row, int column) { 

      if (column == 0) return true; 

      if (column == 1 || column == 4 || column == 5) return false; 

      return (Boolean)getValueAt(row, 0); 
     }