uniondataexample.java

tame,扩展了好多SWing组件:JTable

/* (swing1.1beta3) */
package tame.examples;

import java.awt.Container;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Vector;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.event.TableModelEvent;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.DefaultTableModel;

/**
<pre>
java.lang.ArrayIndexOutOfBoundsException: 3 >= 3
        at java.util.Vector.elementAt(Vector.java:432)
        at tame.examples.UnionDataExample$3.getValueAt(UnionDataExample.java:64)
</pre>
@author Nobuo Tamemasa
@version 1.0 11/09/98
*/
public class UnionDataExample extends JFrame {

  UnionDataExample() {
    super( "UnionData Example" );
    setSize( 300, 200 );

    final String[] headers =  {"a", "b", "c", "d"};
    final String[][] data  = new String[6][headers.length];

    final AbstractTableModel dmAB  = new AbstractTableModel() {
      public int getRowCount() { return data.length; }
      public int getColumnCount() { return headers.length; }
      public String getColumnName(int col) { return headers[col]; }
      public Object getValueAt(int row, int col) {
        return data[row][col];
      }
    };

    final int rowCountA = 3;
    DefaultTableModel dmA  = new DefaultTableModel(data, headers) {
      public int getRowCount() { return rowCountA; }
      public Object getValueAt(int row, int col) {
        Vector rowVector = (Vector)dataVector.elementAt(row);
        return rowVector.elementAt(col);
      }
      public void setValueAt(Object value, int row, int col) {
        data[row][col] = (String)value;
        Vector rowVector = (Vector)dataVector.elementAt(row);
        rowVector.setElementAt(value, col);
        TableModelEvent event = new TableModelEvent(this, row, row, col);
        fireTableChanged(event);
        dmAB.fireTableChanged(event);
      }
    };

    DefaultTableModel dmB  = new DefaultTableModel(data, headers) {
      public int getRowCount() { return rowCountA; }
      //public int getRowCount() { return data.length - rowCountA; }
      public Object getValueAt(int row, int col) {
        Vector rowVector = (Vector)dataVector.elementAt(row + rowCountA);
        return rowVector.elementAt(col);
      }
      public void setValueAt(Object value, int row, int col) {
        int sRow = row + rowCountA;
        data[sRow][col] = (String)value;
        Vector rowVector = (Vector)dataVector.elementAt(sRow);
        rowVector.setElementAt(value, col);
        TableModelEvent event = new TableModelEvent(this, sRow, sRow, col);
        fireTableChanged(event);
        dmAB.fireTableChanged(event);
      }
    };

    JScrollPane scrollA  = new JScrollPane(new JTable( dmA  ));
    JScrollPane scrollB  = new JScrollPane(new JTable( dmB  ));
    JScrollPane scrollAB = new JScrollPane(new JTable( dmAB ));

    Box box = new Box(BoxLayout.Y_AXIS);
    box.add(new JLabel("Table A"));
    box.add(scrollA);
    box.add(new JSeparator(SwingConstants.VERTICAL));
    box.add(new JLabel("Table B"));
    box.add(scrollB);
    Box boxAB = new Box(BoxLayout.Y_AXIS);
    boxAB.add(new JLabel("Table A + B"));
    boxAB.add(scrollAB);
    Container content = getContentPane();
    content.setLayout(new BoxLayout(content,BoxLayout.X_AXIS));
    content.add(box);
    content.add(new JSeparator(SwingConstants.HORIZONTAL));
    content.add(boxAB);
  }

  public static void main(String[] args) {
    UnionDataExample frame = new UnionDataExample();
    frame.addWindowListener( new WindowAdapter() {
      public void windowClosing( WindowEvent e ) {
	System.exit(0);
      }
    });
    frame.setVisible(true);
  }
}