/* (swing1.1beta3) jfc#96 */
package tame.examples;

import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.SwingConstants;

import tame.table.AttributiveCellTableModel;
import tame.table.CellSpan;
import tame.table.MultiSpanCellTable;

/**
<pre>
Exception in thread "main" java.lang.NullPointerException
        at javax.swing.table.DefaultTableModel.getColumnCount(DefaultTableModel.java:575)
        at javax.swing.table.DefaultTableModel.justifyRows(DefaultTableModel.java:242)
        at javax.swing.table.DefaultTableModel.setNumRows(DefaultTableModel.java:298)
        at tame.table.AttributiveCellTableModel.<init>(AttributiveCellTableModel.java:32)
</pre>
@author Nobuo Tamemasa
@version 1.0 11/26/98
*/
public class MultiSpanCellTableExample extends JFrame {

  MultiSpanCellTableExample() {
    super( "Multi-Span Cell Example" );

    AttributiveCellTableModel ml = new AttributiveCellTableModel(10,6);
    /*
    AttributiveCellTableModel ml = new AttributiveCellTableModel(10,6) {
      public Object getValueAt(int row, int col) {
        return "" + row + ","+ col;
      }
    };
   */
    final CellSpan cellAtt =(CellSpan)ml.getCellAttribute();
    final MultiSpanCellTable table = new MultiSpanCellTable( ml );
    JScrollPane scroll = new JScrollPane( table );

    JButton b_one   = new JButton("Combine");
    b_one.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
	int[] columns = table.getSelectedColumns();
	int[] rows    = table.getSelectedRows();
	cellAtt.combine(rows,columns);
	table.clearSelection();
	table.revalidate();
	table.repaint();
      }
    });
    JButton b_split = new JButton("Split");
    b_split.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
	int column = table.getSelectedColumn();
	int row    = table.getSelectedRow();
	cellAtt.split(row,column);
	table.clearSelection();
	table.revalidate();
	table.repaint();
      }
    });
    JPanel p_buttons = new JPanel();
    p_buttons.setLayout(new GridLayout(2,1));
    p_buttons.add(b_one);
    p_buttons.add(b_split);

    Box box = new Box(BoxLayout.X_AXIS);
    box.add(scroll);
    box.add(new JSeparator(SwingConstants.HORIZONTAL));
    box.add(p_buttons);
    getContentPane().add( box );
    setSize( 400, 200 );
    setVisible(true);
  }

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