emview.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 23:27:55
// Home Page : http://members.fortunecity.com/neshkov/dj.html  - Check often for new version!
// Decompiler options: packimports(3) 
// Source File Name:   EMView.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 EMView extends FullCanvas
{

    public EMView(String title)
    {
        infos = new Vector();
        width = getWidth();
        height = getHeight();
        smallFont = Font.getFont(0, 0, 8);
        try
        {
            bgImg = Image.createImage("/NBMaJiang/images/bgImage.png");
            arrowbackImg = Image.createImage("/NBMaJiang/images/arrowBack.png");
        }
        catch(Exception e) { }
        okAction = new Action("\u8FD4\u56DE", 6, 1);
        curIndex = 0;
        needRollBar = false;
        lineH = smallFont.getHeight() + 5;
        maxLine = (height - 35) / lineH;
        this.title = title;
    }

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

    public void setTitle(String value)
    {
        title = value;
    }

    protected void paint(Graphics g)
    {
        g.drawImage(bgImg, 0, 0, 0x10 | 4);
        int tX = 5;
        g.setFont(smallFont);
        if(infos.size() > maxLine)
            needRollBar = true;
        int endIndex = infos.size() <= curIndex + maxLine ? infos.size() : curIndex + maxLine;
        g.setColor(0);
        if(!title.equals(""))
            g.drawString(title, width / 2, 8, 0x10 | 1);
        for(int i = curIndex; i < endIndex; i++)
        {
            int tY = ((i + 1) - curIndex) * lineH + 5;
            g.drawString((String)infos.elementAt(i), tX, tY, 0x10 | 4);
        }

        g.setClip(width - 27, height - 38, 18, 30);
        g.drawImage(arrowbackImg, width - 27, height - 38, 0x10 | 4);
        if(needRollBar)
            drawRollBar(g);
    }

    private void drawRollBar(Graphics g)
    {
        int numRec = infos.size() / maxLine + 1;
        g.setColor(0);
        g.drawRoundRect(width - 10, 20, 6, height - 40, 5, 5);
        int curRec = infos.size() % (curIndex + 1);
        g.setColor(0x922633);
        int recH = (height - 40) / (infos.size() + 1);
        g.fillRoundRect(width - 10, 20 + curIndex * recH, 6, recH, 5, 5);
    }

    public void clear()
    {
        infos.removeAllElements();
    }

    public void addInfos(String info)
    {
        infos.addElement(info);
    }

    protected void keyPressed(int keyCode)
    {
        if(keyCode == -7)
        {
            if(actionListener != null && okAction != null)
                actionListener.action(okAction, this);
            return;
        }
        if(!needRollBar)
            return;
        int action = getGameAction(keyCode);
        switch(action)
        {
        default:
            break;

        case 1: // '\001'
            curIndex--;
            if(curIndex < 0)
                curIndex = 0;
            break;

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

    private Font smallFont;
    private int width;
    private int height;
    private ActionListener actionListener;
    private Vector infos;
    private Action okAction;
    private int curIndex;
    private String title;
    private boolean needRollBar;
    private int lineH;
    private int maxLine;
    private Image bgImg;
    private Image arrowbackImg;
}