www.pudn.com > tame.rar > MixedExample.java

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

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JSeparator;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.SwingConstants;

import tame.colorchooser.TextColorChooser;
import tame.table.AttributiveCellRenderer;
import tame.table.AttributiveCellTableModel;
import tame.table.CellAttribute;
import tame.table.CellFont;
import tame.table.CellSpan;
import tame.table.ColoredCell;
import tame.table.MultiSpanCellTable;

/**
Exception in thread "main" java.lang.NullPointerException
        at javax.swing.table.DefaultTableModel.getColumnCount(DefaultTableModel.java:575)

@author Nobuo Tamemasa
@version 1.0 11/22/98
*/
public class MixedExample extends JFrame {

  public MixedExample() {
    super( "Mixed Example" );

    AttributiveCellTableModel ml = new AttributiveCellTableModel(20,5) {
      public Object getValueAt(int row, int col) {
        return "" + row + ","+ col;
      }
    };
    CellAttribute cellAtt = ml.getCellAttribute();
    MultiSpanCellTable table = new MultiSpanCellTable( ml );
    table.setCellSelectionEnabled(true);
    table.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
    table.setDefaultRenderer(Object.class ,new AttributiveCellRenderer());
    JScrollPane scroll = new JScrollPane( table );

    ColorPanel colorPanel = new ColorPanel(table,(ColoredCell)cellAtt);
    FontPanel   fontPanel = new FontPanel(table, (CellFont)cellAtt);
    SpanPanel   spanPanel = new SpanPanel(table, (CellSpan)cellAtt);
    Box boxAtt = new Box(BoxLayout.Y_AXIS);
    boxAtt.add(colorPanel);
    boxAtt.add(fontPanel);
    boxAtt.add(spanPanel);

    Box box = new Box(BoxLayout.X_AXIS);
    box.add(scroll);
    box.add(new JSeparator(SwingConstants.HORIZONTAL));
    box.add(boxAtt);
    getContentPane().add( box );
    setSize( 400, 300 );
    setVisible(true);
  }

  class ColorPanel extends JPanel {
    JTable table;
    ColoredCell cellAtt;
    ColorPanel(final JTable table, final ColoredCell cellAtt) {
      this.table   = table;
      this.cellAtt = cellAtt;
      setLayout(new GridLayout(2,1));
      setBorder(BorderFactory.createTitledBorder("Color"));
      JButton b_fore   = new JButton("Foreground");
      b_fore.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          changeColor(true);
        }
      });
      JButton b_back   = new JButton("Background");
      b_back.addActionListener(new ActionListener() {
        public void actionPerformed(ActionEvent e) {
          changeColor(false);
        }
      });
      JPanel p_buttons = new JPanel();
      add(b_fore);
      add(b_back);
    }

    private final void changeColor(boolean isForeground) {
      int[] columns = table.getSelectedColumns();
      int[] rows    = table.getSelectedRows();
      if ((rows == null) || (columns == null)) return;
      if ((rows.length<1)||(columns.length<1)) return;
      Color target    = cellAtt.getForeground(rows[0], columns[0]);
      Color reference = cellAtt.getBackground(rows[0], columns[0]);
      for (int i=0;i