addmenuscreen.java

PDA餐饮管理系统,在掌上电脑实现的,可以开台,点菜等多功能模块

package junwei;

import javax.microedition.lcdui.*;
import item.*;
import rms.*;
import java.util.*;

/**
 * 点菜界面	
 * @author hong
 * 
 * 
 *
 */
public class AddMenuScreen extends InputScreen implements CommandListener{

	private static AddMenuScreen instance;

	private static StringItem siTableNo;
	private static ShowBillItem menuItem;

	synchronized public static AddMenuScreen getInstance() {
		if (instance == null)
			instance = new AddMenuScreen();
		siTableNo.setText(MainScreen.getInstance().getCurTableNo());
		return instance;
	}

	private AddMenuScreen() {
		super("点菜");
		
		siTableNo=new StringItem("桌台号：","",Item.PLAIN);
		append(siTableNo);
		
		menuItem=new ShowBillItem("客人点菜：",this.getWidth(),this.getHeight()-30);
		menuItem.setContent(null);
		append(menuItem);
		
		addCommand(new Command("发送", Command.OK, 1));
		addCommand(new Command("增加菜品", Command.OK, 1));
		//addCommand(new Command("菜品设置", Command.OK, 1));
		addCommand(new Command("点菜菜单",Command.OK,1));
		addCommand(new Command("删除菜品", Command.OK, 1));
		addCommand(new Command("取消", Command.CANCEL, 1));
		setCommandListener(this);
	}
	
	
	public void commandAction(Command c, Displayable s) {
		String cmd = c.getLabel();
        if (cmd.equals("发送")) {
	 		GetDataThread t = new GetDataThread();
	 		StringBuffer strDetail=new StringBuffer();
	 		BillDetail aBillDetail;
	 		Vector menuDetail=menuItem.getContent();
	 		for (int i=0;i<menuDetail.size();i++){
	 			aBillDetail=(BillDetail)menuDetail.elementAt(i);
	 			if (!strDetail.toString().trim().equals(""))
	 				strDetail.append(";");
	 			if (aBillDetail.getRemark().equals(""))
	 				aBillDetail.setRemark("*");
	 			strDetail.append(aBillDetail.getMenu().getMenuId()
	 					+"-"+aBillDetail.getAmount()
	 					+"-"+aBillDetail.getStatusID()
	 					+"-"+aBillDetail.getRemark());
	 		}
			t.init(GetDataThread.rt_work,"AddMenuServlet?tableNo="
					+ siTableNo.getText()+"&posId="+ MainMidlet.posID+"&menuDetail="+strDetail);
			
			t.start();
			menuItem.setContent(null);
			Navigator.flow("确定");
		}
		else if (cmd.equals("增加菜品")) {
		
			SelectMenuScreen selectMenuScreen=new SelectMenuScreen();
			selectMenuScreen.initTag(1);
			Navigator.display.setCurrent(selectMenuScreen);
	        
		}
		else if(cmd.equals("点菜菜单")){
			PageInfoScreen pageInfoScreen= new PageInfoScreen();
			pageInfoScreen.initTag(2);
			Navigator.display.setCurrent(pageInfoScreen);
		}
		else if (cmd.equals("菜品设置")) {
			Navigator.display.setCurrent(EditMenuScreen.getInstance());
		}
		else if (cmd.equals("删除菜品")) {
			menuItem.delContent();
		}
		else
    		Navigator.flow(cmd);
	}
	
	public void addMenu(Object aMenu){
		BillDetail aBillDetail=new BillDetail();
		aBillDetail.setNo(menuItem.getContentNum()+1);
		aBillDetail.setMenu((Menu)aMenu);
		aBillDetail.setAmount(1);
		menuItem.addContent(aBillDetail);
	}
	
	public void editMenu(float amount,String remark,int status){
		BillDetail aBillDetail=(BillDetail)menuItem.getSelectContent();
		aBillDetail.setAmount(amount);
		aBillDetail.setRemark(remark);
		aBillDetail.setStatus(status);
	}
	
	public BillDetail getSelectDetail(){
		return (BillDetail)menuItem.getSelectContent();
	}

}