animatedicontableexample.java

关于Swing的一些小程序

/* (swing1.1.1beta2) */
//package jp.gr.java_conf.tame.swing.examples;

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


/**
 * @version 1.0 06/19/99
 */
public class AnimatedIconTableExample extends JFrame {

  public AnimatedIconTableExample(){
    super( "AnimatedIconTable Example" );
    
    final Object[][] data =  new Object[][]{
      {new ImageIcon("images/3-40.gif"),new ImageIcon("images/3-119.gif")},
      {new ImageIcon("images/3-41.gif"),new ImageIcon("images/3-6.gif")}};
    final Object[] column = new Object[]{"Boy and Girl","Dog and Cat"};
        
    AbstractTableModel model = new AbstractTableModel() {
      public int getColumnCount() { return column.length; }
      public int getRowCount()    { return data.length; }
      public String getColumnName(int col) {
       return (String)column[col]; 
      }
      public Object getValueAt(int row, int col) { 
        return data[row][col]; 
      }
      public Class getColumnClass(int col) {
        return ImageIcon.class;
      }
    };
        
    JTable table = new JTable( model );
    table.setRowHeight(50);
    setImageObserver(table);
    JScrollPane pane = new JScrollPane(table);
    getContentPane().add(pane);
  }
    
  private void setImageObserver(JTable table) {
    TableModel model = table.getModel();
    int colCount = model.getColumnCount();
    int rowCount = model.getRowCount();
    for (int col=0;col<colCount;col++) {
      if (ImageIcon.class == model.getColumnClass(col)) {
        for (int row=0;row<rowCount;row++) {
          ImageIcon icon = (ImageIcon)model.getValueAt(row,col);
          if (icon != null) {
            icon.setImageObserver(new CellImageObserver(table, row, col));
          }
        }
      }
    }
  }
    
  class CellImageObserver implements ImageObserver {
    JTable table;
    int row;
    int col;
      
    CellImageObserver(JTable table,int row, int col) {
      this.table = table;
      this.row   = row;
      this.col   = col;
    }
    
    public boolean imageUpdate(Image img, int flags,
			       int x, int y, int w, int h) {
      if ((flags & (FRAMEBITS|ALLBITS)) != 0) {
        Rectangle rect = table.getCellRect(row,col,false);
        table.repaint(rect);
      }
      return (flags & (ALLBITS|ABORT)) == 0;
    }
  }

  public static void main(String[] args) {
    AnimatedIconTableExample frame = new AnimatedIconTableExample();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.setSize( 300, 150 );
    frame.setVisible(true);
  }
}