emmenuform.java

本人收集的一些j2me资料！！ 有兴趣的可以

// Decompiled by DJ v2.9.9.60 Copyright 2000 Atanas Neshkov  Date: 2005-4-3 23:29:11
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 
// Source File Name:   EMMenuForm.java

package NBMaJiang;

import com.nokia.mid.ui.FullCanvas;
import java.util.Vector;
import javax.microedition.lcdui.*;

// Referenced classes of package NBMaJiang:
//            Action, ActionListener

public class EMMenuForm extends FullCanvas
{

    public EMMenuForm()
    {
        init();
    }

    private void init()
    {
        menuActions = new Vector();
        width = getWidth();
        height = getHeight();
        smallFont = Font.getFont(0, 0, 8);
        curIndex = 1;
        try
        {
            backImg = Image.createImage("/NBMaJiang/images/backImage.png");
            bgImg = Image.createImage("/NBMaJiang/images/bgImage.png");
            arrowImg = Image.createImage("/NBMaJiang/images/arrow.png");
        }
        catch(Exception e) { }
    }

    protected void paint(Graphics g)
    {
        drawBg(g);
        drawMenu(g);
    }

    private void drawBg(Graphics g)
    {
        g.drawImage(bgImg, 0, 0, 0x10 | 4);
    }

    private void drawMenu(Graphics g)
    {
        int per = (height - 25) / (menuActions.size() * 2);
        g.setFont(smallFont);
        for(int i = 0; i < menuActions.size(); i++)
        {
            int tX = 30;
            int tY = (2 * i + 1) * per;
            if(curIndex == i + 1)
                g.drawImage(backImg, 20, tY - 2, 0x10 | 4);
            g.setColor(0);
            g.drawString(((Action)menuActions.elementAt(i)).getLabel(), tX + 5, tY + 2, 0x10 | 4);
        }

        g.setClip(width - 27, height - 38, 18, 30);
        g.drawImage(arrowImg, width - 27, height - 38, 0x10 | 4);
        if(okAction == null)
            okAction = new Action("\u9009\u62E9", 5, 1);
    }

    public void setMenuItem(Action item)
    {
        menuActions.addElement(item);
    }

    private void setCommandAction(Action item)
    {
        okAction = item;
    }

    protected void keyPressed(int keyCode)
    {
        if(keyCode == -7)
        {
            if(okAction.type == 5 && actionListener != null)
                actionListener.action((Action)menuActions.elementAt(curIndex - 1), this);
            return;
        }
        int action = getGameAction(keyCode);
        switch(action)
        {
        default:
            break;

        case 1: // '\001'
            curIndex--;
            if(curIndex < 1)
                curIndex = menuActions.size();
            break;

        case 6: // '\006'
            curIndex++;
            if(curIndex > menuActions.size())
                curIndex = 1;
            break;
        }
        repaint();
    }

    public void setActionListener(ActionListener actListener)
    {
        actionListener = actListener;
    }

    private Action okAction;
    private Vector menuActions;
    private ActionListener actionListener;
    private Font smallFont;
    private int curIndex;
    private int width;
    private int height;
    private Image bgImg;
    private Image backImg;
    private Image arrowImg;
}