sellshoepopup.java

一 实习题目：用java实现表单系统 二 设计思想：用java语言实现一个批发货物的表单系统。在本次实习中

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

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

public class SellShoePopup
    extends MouseAdapter
    implements ActionListener {
  private JPopupMenu menu = new JPopupMenu("Table Options");
  Icon icondel=new ImageIcon("delete.jpg");
  Icon iconadd=new ImageIcon("add.jpg");
  Icon iconmod=new ImageIcon("mod.jpg");
  Icon iconext=new ImageIcon("ext.jpg");
  Icon iconabt=new ImageIcon("abt.jpg");
  private JMenuItem add = new JMenuItem(" 添加项目",iconadd);
  private JMenuItem del = new JMenuItem("删除项目",icondel);
  private JMenuItem mod = new JMenuItem("修改项目",iconmod);
  private JMenuItem ext = new JMenuItem("退出系统",iconext);
  private JMenuItem abt = new JMenuItem("关于系统",iconabt); 
  private SellShoe parent = null;

  public SellShoePopup(SellShoe _parent) {
    parent = _parent;
    menu.add(add);
    add.addActionListener(this);
    menu.add(new JPopupMenu.Separator());
    menu.add(mod);
    mod.addActionListener(this);
    menu.add(new JPopupMenu.Separator());
    menu.add(del);
    del.addActionListener(this);
    menu.add(new JPopupMenu.Separator());
    menu.add(ext);
    ext.addActionListener(this);
    menu.add(new JPopupMenu.Separator());
    menu.add(abt);
    abt.addActionListener(this);
  }

  public void mousePressed(MouseEvent me) {
    if (SwingUtilities.isRightMouseButton(me)) {
      menu.show(parent.table, me.getX(), me.getY());
    }
  }

  public void actionPerformed(ActionEvent ae) {
    if (ae.getSource() == add) {
      add();
    }
    else if (ae.getSource() == del) {
      delete();
    }
    else if (ae.getSource() == mod) {
      modify();
    }
    else if (ae.getSource() == ext) {
      ext();
    }
   else if (ae.getSource() == abt) {
      abt();
    }
  }

  private void delete() {
    /*从表格中删除当前选择的行*/
    int row = parent.table.getSelectedRow();
    if (row >= 0) {
      String msg = "删除 '" + parent.data.getValueAt(row, 0) + "'号"+ parent.data.getValueAt(row, 1) + "色?";
      if (JOptionPane.showConfirmDialog(parent, msg, "删除项目",
                                        JOptionPane.OK_CANCEL_OPTION,
                                        JOptionPane.WARNING_MESSAGE)
          == JOptionPane.YES_OPTION) {
        parent.data.removeRow(row);
        parent.price.setText("总的价钱: ￥" + parent.total());
      }
    }
  }

  private void add() {
    /*弹出对话框，以便在表格中增加支票项*/
    SellShoePanel sellshoe = new SellShoePanel();
    if (JOptionPane.showOptionDialog(parent, sellshoe, "添加项目",
                                     JOptionPane.OK_CANCEL_OPTION,
                                     JOptionPane.QUESTION_MESSAGE,
                                     null, null, null) ==
        JOptionPane.YES_OPTION) {
      try {
        parent.data.addRow(sellshoe.getData());
        parent.price.setText("总的价钱: ￥" + parent.total());
      }
      catch (NumberFormatException nfe) {
        JOptionPane.showMessageDialog(parent, "数据不能为空!",
                                      "错误信息",
                                      JOptionPane.ERROR_MESSAGE);
      }
    }
  }
   
   private void ext(){ 
      /*退出表单系统 */
        System.exit(0);
   }
  private void abt(){ 
     /* 关于表单系统*/
        

 JOptionPane.showMessageDialog(null, "auther:刘红    timer:2005年7月15日 ",
"about:售鞋表单系统", JOptionPane.PLAIN_MESSAGE); 




   }
 
 
  private void modify() {
    /*弹出包含一个发票项的对话框，进行编辑。*/
    SellShoePanel sellshoe = new SellShoePanel();
    int row = parent.table.getSelectedRow();
    if (row >= 0) {
      String data[] = new String[4];
      for (int i = 0; i < data.length; i++) {
        data[i] = parent.data.getValueAt(row, i).toString();
      }
      sellshoe.setData(data);
      if (JOptionPane.showOptionDialog(parent, sellshoe, "修改项目",
                                       JOptionPane.OK_CANCEL_OPTION,
                                       JOptionPane.WARNING_MESSAGE,
                                       null, null, null) ==
          JOptionPane.YES_OPTION) {
        try {
          for (int i = 0; i < sellshoe.getData().length; i++) {
            parent.data.setValueAt(sellshoe.getData()[i], row, i);
          }
          parent.price.setText("总的价钱: ￥" + parent.total());
        }
        catch (NumberFormatException nfe) {
          JOptionPane.showMessageDialog(parent, "数据不能为空",
                                        "错误信息",
                                        JOptionPane.ERROR_MESSAGE);
        }
      }
    }
  }






}