2012-05-28 62 views
0

這是我的一個JTable代碼,我打算讓有像組合框,JSpinner的,一個JRadioButton,JTextfeiled等JTable中

所有的組件,但我結束了這一點,表頭是沒有出現,我不能編輯列。請指出我的錯誤,因爲我嘗試了很多並放棄了

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

public class TableComponent extends JFrame 
{ 
    JTable dataTable = null; 
    public int changeRow = -1, changeColumn = -1; 
    public JRadioButton radioButton = new JRadioButton(); 

    public void init() { 
     JPanel upperPanel = setMainPanel(); 

     super.getContentPane().removeAll(); 
     Container content = super.getContentPane(); 
     content.setLayout(new BorderLayout()); 
     content.add(upperPanel, BorderLayout.CENTER); 
     setDefaultCloseOperation(DISPOSE_ON_CLOSE); 
     setSize(800, 400); 
     setVisible(true); 
    } 

    public static void main(String[] args) { 
     TableComponent tableComponent = new TableComponent(); 
     tableComponent.init(); 
    } 

    // This function set the main Panel 
    private JPanel setMainPanel() { 
     dataTable = createTable(); 

     dataTable = setTableProp(dataTable); 

     JPanel panel = new JPanel(new BorderLayout(5, 10)); 

     //Get the screen size 
     Toolkit toolkit = Toolkit.getDefaultToolkit(); 
     Dimension screenSize = toolkit.getScreenSize(); 

     panel.add(dataTable, BorderLayout.CENTER); 

     return panel; 
    } 

    private JTable createTable() 
    { 
     String[] columnName = {"", "Name", "Radio", "Text", "Combo", "Spiner"}; 
     String []s={"01:1mS","02:2mS","04:4mS","06:6mS"}; 
     Object[][] data = new Object[5][6]; 
     for (int i = 0; i < 5; i++) { 
      data[i][0] = new Boolean(false); 
      data[i][1] = "Column 1"; 
      data[i][2] = new CustomRadio(false); 
      data[i][3] = new CustomTextField("Test"); 
      data[i][4] = new CustomCombo(s); 
      data[i][5] = new CustomSpiner(); 
     } 

     AbstractTableModel model = new MyTableModel(data, columnName); 
     JTable table = new JTable(model); 

     return table; 
    } 

    // This function set the child table properties 
    private JTable setTableProp(JTable table) 
    { 
     JTableHeader tableHeader = table.getTableHeader(); 
     tableHeader.setBackground(Color.WHITE); 
     tableHeader.setForeground(Color.gray); 

     table.setTableHeader(tableHeader); 

     TableColumn tc = null; 

     for (int j = 1; j < table.getColumnCount(); j++) { 
      tc = table.getColumnModel().getColumn(j); 

      if (j == 1) { 
       tc.setCellRenderer(new ColumnRenderer()); 
      } else if (j == 2) { 
       tc.setCellRenderer(new RadioButtonRenderer()); 
      } else if (j == 3) { 
       tc.setCellRenderer(new TextFieldRenderer()); 
      } else if (j == 4) { 
       tc.setCellRenderer(new ComboRenderer()); 
      } else if (j == 5) { 
       tc.setCellRenderer(new SpinerRenderer()); 
      } 
     } 
     return table; 
    } 

    //This is the Abstract Table Model class 
    class MyTableModel extends AbstractTableModel { 

     private String[] columnName = null; 
     private Object[][] data = null; 

     MyTableModel(Object[][] data, String[] columnName) { 
      this.data = data; 
      this.columnName = columnName; 
     } 

     public int getColumnCount() { 
      return columnName.length; 
     } 

     public int getRowCount() { 
      return data.length; 
     } 

     public String getColumnName(int col) { 
      return columnName[col]; 
     } 

     public Object getValueAt(int row, int col) { 
      return data[row][col]; 
     } 

     /* 
     * JTable uses this method to determine the default renderer/ 
     * editor for each cell. If we didn't implement this method, 
     * then the first column would contain text ("true"/"false"), 
     * rather than a check box. 
     */ 
     public Class getColumnClass(int c) { 
      return getValueAt(0, c).getClass(); 
     } 

     public boolean isCellEditable(int row, int col) { 
     // if (col == 1) 
       return true; 
    //  else 
    //   return false; 
     } 

     public void setValueAt(Object value, int row, int col) { 
      data[row][col] = value; 
      fireTableCellUpdated(row, col); 
     } 
    } 

    class ColumnRenderer extends DefaultTableCellRenderer { 
      public ColumnRenderer() { 
      super(); 
     } 

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
      Component cell = super.getTableCellRendererComponent(table, value, isSelected, hasFocus, row, column); 
      return cell; 
     } 
    } 

    class RadioButtonRenderer implements TableCellRenderer, ItemListener { 

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
      if (value == null) { 
       return null; 
      } 

      CustomRadio radio = (CustomRadio) value; 

      return radio; 
     } 

     public void itemStateChanged(ItemEvent e) {} 
    } 

    class TextFieldRenderer implements TableCellRenderer { 

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
       if (value == null) { 
        return null; 
       } 

       CustomTextField customTextField = (CustomTextField) value; 

       return customTextField; 
      } 
    } 

    class ComboRenderer implements TableCellRenderer { 

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
      if (value == null) { 
       return null; 
      } 

      CustomCombo customCombo = (CustomCombo) value; 

      return customCombo; 
     } 
    } 

    class SpinerRenderer implements TableCellRenderer { 

     public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) { 
      if (value == null) { 
       return null; 
      } 

      CustomSpiner customSpiner = (CustomSpiner) value; 

      return customSpiner; 
     } 
    } 

    class CustomRadio extends JRadioButton { 
     public CustomRadio(boolean isSel) { 
      super(); 
      this.setSelected(isSel); 
     } 

     public CustomRadio(ButtonGroup btnGroup, boolean isSel) { 
      this(isSel); 
      btnGroup.add(this); 
     } 
    } 

    class CustomTextField extends JTextField { 
     public CustomTextField(String dataVal) { 
      super(); 
     } 
    } 

    class CustomCombo extends JComboBox { 
     public CustomCombo(String[] s) { 

      super(s); 
     } 
    } 

    class CustomSpiner extends JSpinner { 
     public CustomSpiner() { 
      super(); 
     } 
    } 
} 
+1

表使用的渲染器「橡皮圖章」組件到表 - 他們不是真正的組件。因此,要使表格可編輯,您還必須提供自定義編輯器。試試看[這裏](http://stackoverflow.com/a/577021/1212960)。 –

回答

5

JTable不應該包含組件。它應該包含數據(字符串,整數,布爾值,日期等)。渲染器的目標是使用一個組件(多個單元的相同實例)將這些數據轉換爲可視化的東西(標籤,單選按鈕,圖標......)。編輯的目標是能夠在可編輯組件中顯示數據,接受新值,並使用最終用戶輸入的數據更改數據值。

不要將組件存儲在JTable中。如果默認設置不符合您的需求,請配置渲染器和/或編輯器以渲染/編輯數據。

這全部在JTable tutorial中解釋。