基于Nokia S40的猜数字游戏之一[6]

    protected void paint(Graphics g)
    {
        if (focus == null)
            getFocus();

        eraseBackground(g);
        g.setColor(getForeColor());

        int n = children.size();
        for (int i = n - 1; i >= 0; --i)
        {
            try
            {
                Area area = (Area) children.elementAt(i);
                area.paint(g, (focus == area));
            } catch (Exception e)
            {
                e.printStackTrace();
            }
        }
    }

    protected void paintArea(Graphics g, boolean hasFocus)
    {
    }
}

在猜数字游戏中，我们还需要一个用于显示用户输入和系统返回纪录的组件，他同样继承与Area，但是他不需要获得焦点。只是显示结果。

package com.j2medev.numbergame;
import javax.microedition.lcdui.Font;
import javax.microedition.lcdui.Graphics;

public class Mark extends Area
{
    private int px;

    private int py;

    private int count = 0;

    private int[][] ab = new int[10][2];
   
    private int[][] input = new int[10][4];

    private boolean first = true;

    private boolean open = false;

    public Mark(int x, int y, int w, int h)
    {
        super(x, y, w, h);
        px = x;
        py = y;
       
    }

    public Mark(int x, int y, int w, int h, Font f)
    {
        super(x, y, w, h, f);
        px = x;
        py = y;
       
    }

    public int getCount()
    {
        return count;
    }
   
    public void setCount(int count)
    {
        this.count = count;
    }
   
    public void reset()
    {
        setCount(0);
        this.first = true;
    }

    public void setAB(int[] ab)
    {
        this.ab[count][0] = ab[0];
        this.ab[count][1] = ab[1];
    }
   
    public void setInput(int[] input)
    {
        for(int i = 0;i<input.length;i++)
        {
            this.input[count][i] = input[i];
        }
    }

    public void setOpen(boolean open)
    {
        this.open = open;
    }

    public int getLineHeight()
    {
        return this.getFont().getHeight();
    }
   
    private String getInput(int count)
    {
        return ""+input[count][0]+input[count][1]+input[count][2]+input[count][3];
    }