welcomeview.java

英语背单词联网版本

//Source file: F:\\game\\jdc-resource\\jdc\\WelcomeView.java

package handenglish;

import javax.microedition.midlet.*;
import javax.microedition.lcdui.*;
import java.io.*;
/**
 * 欢迎界面和菜单
 */
public class WelcomeView extends Canvas{
    private final int HELPLINES = 57;
    private Midlet midlet;
    private int dispType,menuItem,helpLineNum;
    private Image m_arrowImg,m_bianImg,m_bgImg,m_newImg;
    private Image m_Mlog,m_Mlogan,m_Bbxlog;
    private String[] helpWord;
    //public boolean m_isRead;
    //public String message;
    //private boolean isCheck;
    //private WordUpdataView m_wordUpdataView;
    /**
     * 0-欢迎界面
     * 1-菜单界面
     * 2-帮助界面
     * 3-一般信息
     */
    public WelcomeView(Midlet midlet){
    	  setFullScreenMode( true );
        helpWord=new String[HELPLINES];
        initHelpWord();
        try {
            m_Mlog = Image.createImage("/handenglish/images/monternet.png");
            m_Mlogan = Image.createImage("/handenglish/images/slogan.png");
            m_Bbxlog = Image.createImage("/handenglish/images/bbox50.png");
            m_arrowImg=Image.createImage("/handenglish/images/arrow.png");
            m_bianImg=Image.createImage("/handenglish/images/bian.png");
            m_bgImg=Image.createImage("/handenglish/images/bg.png");
            m_newImg=Image.createImage("/handenglish/images/new.png");
        }
        catch(Exception e) {
        }
        this.midlet=midlet;
    }
    /*private void checkMeg(){
        m_isRead=SysParam.getInstance().isRead;
        message=SysParam.getInstance().msg;
    }*/
    private void initHelpWord(){
        try{
            String fileName="/handenglish/help.dat";
            InputStream db = getClass().getResourceAsStream(fileName);
            DataInputStream is=new DataInputStream(db);
            if (db!= null){
                for(int i=0;i<HELPLINES;i++)
                    helpWord[i]=is.readUTF();
                db.close();
                is.close();
            }
        }catch(IOException ex){}
    }
    
    /**
     * @param nowType
     */
    public void setDispType(int type) {
        dispType=type;
        menuItem=0;
        helpLineNum=0;
    }
    
    /**
     * @param arg0
     */
    protected void paint(Graphics g) {
        g.setFont(Font.getFont(Font.FACE_SYSTEM,Font.STYLE_PLAIN,Font.SIZE_SMALL));
        g.setColor(255,255,255);
        g.fillRect(0,0,128,128);
        g.setColor(0,0,0);
        if(dispType==0){
            g.drawImage(m_bgImg,2,2,g.LEFT|g.TOP);
        }
        else if ( dispType == 3 ) {
            g.setColor(0xffffff);
            g.fillRect(0,0,128,128);
            g.drawImage( m_Mlog,64,14,g.HCENTER | g.TOP );
            g.drawImage( m_Mlogan,64,84,g.HCENTER | g.TOP );
            g.setColor( 0 );
            g.drawString( "按任意键进入",128,110,g.RIGHT|g.TOP );
        }
        else if ( dispType == 4 ) {
            g.setColor(0xffffff);
            g.fillRect(0,0,128,128);
            g.drawImage( m_Bbxlog,64,64,g.VCENTER | g.HCENTER );
            g.setColor( 0 );
            g.drawString( "按任意键进入",128,110,g.RIGHT|g.TOP );
        }
        else if(dispType==1) {
            /*if(!isCheck){
                checkMeg();
                isCheck=true;
            }*/
            //     midlet.setAllNull();
            //     System.gc();
           // DirectGraphics dg=DirectUtils.getDirectGraphics(g);
            g.drawImage(m_bianImg,2,3,g.LEFT|g.TOP);
            g.drawImage(m_bianImg,107,3,g.LEFT|g.TOP);
            g.drawString("记忆单词",42,10,g.LEFT|g.TOP);
            g.drawString("更新词库",42,28,g.LEFT|g.TOP);
            g.drawString("测试训练",42,46,g.LEFT|g.TOP);
            g.drawString("查询单词",42,64,g.LEFT|g.TOP );
            g.drawString("系统通告",42,82,g.LEFT|g.TOP);
            g.drawString("系统帮助",42,100,g.LEFT|g.TOP);
            g.drawString("继续",5,113,g.LEFT|g.TOP);
            g.drawString("退出",100,113,g.LEFT|g.TOP);
            if(!SysParam.getInstance().isRead){
                g.drawImage(m_newImg,91,81,g.LEFT|g.TOP);
            }
            g.drawImage(m_arrowImg,15,10+18*menuItem,g.LEFT|g.TOP);
        }
        else if(dispType==2){
            g.setClip(0,5,128,105);
            for(int i=0;i<HELPLINES;i++)
                g.drawString(helpWord[i],7,5+15*(i-helpLineNum),g.LEFT|g.TOP);
            g.setClip(0,0,128,128);
            g.drawString("返回",100,113,g.LEFT|g.TOP);
        }
        /*else if(dispType==3){
            g.drawString(message,5,5,g.LEFT|g.TOP);
            g.drawString("返回",100,113,g.LEFT|g.TOP);
        }*/
    }
    
    protected  void keyPressed(int keyCode) {
        if ( dispType == 3 ) {
            setDispType( 4 );
            repaint();
            return;
        }
        if ( dispType == 4 ) {
            setDispType( 0 );
            repaint();
            return;
        }
        if(keyCode==-7) {
            if(dispType==1) {
                midlet.exit();
            }
            else if ((dispType==2)) {
                dispType=1;
            }
        }
        else if(keyCode==-6 || keyCode == 32) {
            if(dispType==0) {
                /*midlet.initWordUpdataView(0);
                m_wordUpdataView.checkUp=false;
                Display.getDisplay(midlet).setCurrent(m_wordUpdataView);*/
                midlet.nowDisplay(this,midlet.WIN_CONNECT);
                m_bgImg=null;
            }
            else if(dispType==1) {
                if (menuItem==0) {
                    midlet.nowDisplay(this,midlet.WIN_JDC);
                }
                else if (menuItem==1){
                    //midlet.initWordUpdataView(4);
                    //midlet.showList(this);
                    // midlet.showList(this);
                    midlet.nowDisplay(this,midlet.WIN_LIST );
                }
                else if(menuItem==2){
                    midlet.nowDisplay(this,midlet.WIN_SELUNIT);
                    //midlet.doGame();
                }
                else if(menuItem==4){
                    midlet.nowDisplay(this,midlet.WIN_MEG);
                    SysParam.getInstance().isRead=true;
                }
                else if (menuItem==5)
                    midlet.nowDisplay(this,midlet.WIN_HELP);
                else if ( menuItem == 3 )
                    midlet.nowDisplay( this,midlet.WIN_QUERY );
                return;
            }
        }
        else if(keyCode==-2){
            if (dispType==1) {
                if (menuItem<5)
                    menuItem++;
                else
                    menuItem=0;
            }
            else {
                if (helpLineNum<( HELPLINES - 7 ))
                    helpLineNum+=7;
            }
        }
        else if(keyCode==-1) {
            if (dispType==1) {
                if (menuItem>0)
                    menuItem--;
                else
                    menuItem=5;
            }
            else {
                if (helpLineNum>7)
                    helpLineNum-=7;
                else
                    helpLineNum=0;
            }
        }
        repaint();
    }
}