文本编辑器源文件(java语言)

文本编辑器源文件(java语言)(19)             dispose();
            return true;
        }else
            return super.action(evt,arg);
    }
}

class screen
{
    public int[] length;
    public int left,right,up,down;
    public int offsetx=0,offsety=0;
    public int w=0,h=0;
    public int maxline;

    public screen()
    {
        length= new int[300];
        for(int i=0;i<300;i++)
        {
            length[i]= 0;
        }
        left= 0;
        up= 0;
    }

    public void setmax(int x,int y)
    {
        down= y;
        right= x;
    }
}

class cusor
{
    public int cusorx,cusory;//当前光标的坐标
    public int index;//当前光标对应的偏移
    public int linex,liney;//行列号首地址为1,1linex
    public int oldx,oldy;
    public int w,h;

    public cusor(int y)
    {
        index= 0;
        cusorx= 3;
        cusory= y;
        linex= liney= 0;
    }

    public void paint(Graphics g)