wordupdataview.java

英语背单词联网版本

/*
 * MainCanvas.java
 *
 * Created on 2003年11月12日, 下午9:45
 */

package handenglish;

import javax.microedition.lcdui.*;
import javax.microedition.io.*;
import java.io.*;
import javax.microedition.rms.*;
import java.util.*;
import javax.microedition.midlet.*;
/**
 *
 * @author  com
 * @version
 */
public class WordUpdataView extends Canvas implements ReceiveListener,Runnable{//CommandListener,
    private Receive receive;
    //0-初始化 1-更新信息 2-更新列表中 3-列表下载完毕 4-显示列表 5-下载词库中 6-下载完毕 7-选择册数
    private int curState;
    private Midlet midlet;
    private boolean checked;
    private int listNum,listNumMax,loadPre;
    private Thread loadThread;
    public int listSelectNum,newNumber,listSelectNumMax;
    public String listSelectName;
    public boolean checkUp,checkLoad,listNull,m_First;
    // private int oldNumber;
    // private String oldName;
    private int receiveNO;
    
    public WordUpdataView(Midlet midlet){
    	setFullScreenMode( true );
        checkUp=false;;
        this.midlet = midlet;
        receive = new Receive(midlet);
        receive.setReceiveListener( this );
        listNum=0;
        checked = false;
        loadPre=0;
    }
    
    public void setCurState(int nowCurState){
        curState=nowCurState;
    }
    public void startThread(){
        if(loadThread==null) {
            loadThread=new Thread(this);
            loadThread.start();
        }
    }
    public void stopThread() {
        loadThread = null;
    }
    public void paint(Graphics g) {
        g.setColor(255,255,255);
        g.fillRect(0,0,128,128);
        g.setColor(0,0,0);
        g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,Font.SIZE_SMALL));
        if(curState==0||(curState==2&&receiveNO==0)||(curState==5&&receiveNO==0)){
            g.drawString( "正在与服务器",15,10,g.TOP| g.LEFT );
            g.drawString( "建立连接，",15,30,g.TOP| g.LEFT );
            g.drawString( "请稍候......" ,15,50,g.TOP| g.LEFT );
            g.drawString( "[由于有时网络繁忙，" ,15,70,g.TOP| g.LEFT );
            g.drawString( "可能需等待较长时间]" ,15,90,g.TOP| g.LEFT );
            g.drawString("取消",100,113,g.LEFT|g.TOP);
        }
        else if( curState == 1 ) {
            g.drawString( "更新信息",45,10,g.TOP| g.LEFT);
            g.drawString( "词库列表已更新" , 5,40,g.TOP| g.LEFT);
            g.drawString( "是否下载新的词库列表" , 5,65,g.TOP| g.LEFT);
            g.drawString("确定",5,113,g.LEFT|g.TOP);
            g.drawString("取消",100,113,g.LEFT|g.TOP);
        }
        else if ( curState == 2) {
            if(receiveNO==1){
                g.drawString( "正在接收词库列表，",15,20,g.TOP| g.LEFT);
                g.drawString( "已下载" ,15,60,g.TOP| g.LEFT);
            }
            else if(receiveNO==2){
                g.drawString( "正在存储词库列表，",15,20,g.TOP| g.LEFT);
                g.drawString( "已存储" ,15,60,g.TOP| g.LEFT);
            }
            g.drawString( "请稍候......" ,15,40,g.TOP| g.LEFT);
            g.drawString( ""+loadPre+"%",75,60,g.TOP| g.LEFT);
            //g.drawString("取消",100,113,g.LEFT|g.TOP);
            for(int i=0;i<10;i++)
                g.drawRect(15+8*i,80,6,12);
            for(int i=0;i<loadPre/10;i++){
                g.fillRect(15+8*i,80,6,12);
            }
        }
        else if(curState == 5){
            if(receiveNO==1){
                g.drawString( "正在接收词库，",15,20,g.TOP| g.LEFT);
                g.drawString( "已下载" ,15,60,g.TOP| g.LEFT);
            }
            else if(receiveNO==2){
                g.drawString( "正在存储词库，",15,20,g.TOP| g.LEFT);
                g.drawString( "已存储" ,15,60,g.TOP| g.LEFT);
            }
            g.drawString( "请稍候......" , 15,40,g.TOP| g.LEFT);
            g.drawString( ""+loadPre+"%",75,60,g.TOP| g.LEFT);
            //g.drawString("取消",100,113,g.LEFT|g.TOP);
            for(int i=0;i<10;i++)
                g.drawRect(15+8*i,80,6,12);
            for(int i=0;i<loadPre/10;i++)//
                g.fillRect(15+8*i,80,6,12);
        }
        else if(curState == 7){
            g.drawString( "词库信息",45,10,g.TOP| g.LEFT);
            if(SysParam.getInstance().storeVolume<0){
                g.drawString( "当前词库为空" ,5,40,g.TOP| g.LEFT);
            }
            else{
                g.drawString( "当前已下载的词库:" ,5,30,g.TOP| g.LEFT);
                g.drawString( SysParam.getInstance().storeName+"第"+SysParam.getInstance().storeVolume+"册" ,5,45,g.TOP| g.LEFT);
            }
            g.drawString( "你要下载的词库:",5,65,g.TOP| g.LEFT);
            g.drawString( listSelectName ,5,80,g.TOP| g.LEFT);
            if (  m_First ) {
                if ( listSelectName.equals( SysParam.getInstance().storeName ) && ( newNumber < listSelectNumMax ) )
                    newNumber =SysParam.getInstance().storeVolume + 1;
                m_First = false;
            }
            
            g.drawString( "选择册数: ["+String.valueOf(newNumber)+"]" ,5,95,g.TOP| g.LEFT);
            g.drawString("确定",5,113,g.LEFT|g.TOP);
            g.drawString("取消",100,113,g.LEFT|g.TOP);
        }
    }
    
  /*  public void getOld(){
        oldName=SysParam.getInstance().storeName;
        oldNumber=SysParam.getInstance().storeVolume;
    } */
    public void dataReceived(int cmd, int status) {
        switch( cmd ) {
            case Receive.MSG_LOGIN:
                if ( status != 0 ) {
                    curState = 1;
                    repaint();
                }
                else{
                    stopThread();
                    midlet.nowDisplay(this,midlet.WIN_MENU);
                }
                break;
            case Receive.MSG_LIST:
                stopThread();
                midlet.nowDisplay(this,midlet.WIN_MENU);
                break;
            case Receive.MSG_WORDS:
                stopThread();
                midlet.setUnitPos(1);
                midlet.nowDisplay(this,midlet.WIN_MENU);
                break;
        }
    }
    
    public void dataReceiving(int cmd, int pos, int total,int send) {
        receiveNO=send;
        loadPre=pos*100/total;
        repaint();
        serviceRepaints();
    }
    
    public void errorReceived(int errno) {
        Alert alert = new Alert( "错误信息","通讯错误,请与服务提供商联系!错误号=" + errno ,null,AlertType.ERROR );
        alert.setTimeout( Alert.FOREVER );
        Display.getDisplay( midlet ).setCurrent( alert );
    }
    public void getList() {
        receive.getList(0);
    }
    public void getWords(String name,int no,int volume ) {
        receive.getWords(name,no,volume );
    }
    public void run(){
        Thread current = Thread.currentThread();
        while(current == loadThread){
            try{
                Thread.sleep(200);
                repaint();
                serviceRepaints();
                if(!checkLoad){
                    checkLoad=true;
                    if(curState==0)
                        receive.checkUpdate();
                    else if(curState==2)
                        getList();
                    else if(curState==5)
                        getWords(listSelectName,listSelectNum,newNumber);
                }
            }catch(Exception e){
                //System.out.println(e.toString());
            }
        }
    }
    protected  void keyPressed(int keyCode) {
        if(keyCode==-7) {
            if(curState==1){
                receive.closeConn();
                midlet.nowDisplay(this,midlet.WIN_MENU);
            }
            else if(curState==7){
                // midlet.showList(this);
                midlet.nowDisplay(this,midlet.WIN_LIST );
            }
            else if((curState==5&&receiveNO==0)||(curState==2&&receiveNO==0)||curState==0){
                stopThread();
                receive.closeConn();
                midlet.nowDisplay(this,midlet.WIN_MENU);
            }
        }
        else if(keyCode==32 || keyCode == -6){
            if(curState==1){
                curState=2;
                checkUp=true;
                //startThread();
                checkLoad=false;
                /*curState=2;
                repaint();
                serviceRepaints();
                getList();*/
            }
            else if(curState==7){
                if(!listNull){
                    curState=5;
                    checkUp=true;
                    startThread();
                    checkLoad=false;
                    /*curState=5;
                    repaint();
                    serviceRepaints();
                    getWords(listSelectName,listSelectNum,newNumber);*/
                }
            }
        }
        else if(keyCode==-3){
            if(curState == 7){
                if(newNumber>1)
                    newNumber--;
                else
                    newNumber=listSelectNumMax;
                repaint();
            }
        }
        else if(keyCode==-4){
            if(curState == 7){
                if(newNumber<listSelectNumMax)
                    newNumber++;
                else
                    newNumber=1;
                repaint();
            }
        }
    }
    
    public void showNotify() {
        if(!checkUp&&curState==0){
            loadPre=0;
            checkUp=true;
            startThread();
            checkLoad=false;
        }
        else if(!checkUp&&curState==2){
            loadPre=0;
            checkUp=true;
            startThread();
            checkLoad=false;
        }
    }
    
}