menu.c

LCD多级菜单显示程序！320*240的LCD显示器！全部调试通过的！

#include <stdio.h>		/* standard I/O .h-file */
#include <reg51f.h>
#include <absacc.h>
#include <main.h>
#include <time.h>
#include "lcd.h"
#include "x5045.h"

unsigned char xdata	LEDState,   //LED灯、液晶背光状态变量
					ArrayLine,	//显示屏变量
					ScrLine,	//反白显示行变量
					JD_ticker,	//接地计时变量(10毫秒)
					Ticker,		//按键等用的计时变量;
					ESCTicker,  //背光计数器清零
					F_back;		//需不需要返回上一级的标志,
							    //0xAA----需要返回
							    //0x55----不需要返回

unsigned char code P_first[][16]=				//一级菜单
{
	" 1、一级菜单1  ",
	" 2、一级菜单2  ",
	" 3、一级菜单3  ",
	" 4、一级菜单4  ",
	" 5、一级菜单5  ",
	" 6、一级菜单6  "
};
//*********************************************************
//时子程序
//********************************************************								
void Delay1(time)
unsigned int time;
{
	while(time--);
}
//***********************************************
//键盘识别子程序
//***********************************************
unsigned char GetKey(time)
unsigned char time;
{  	
	unsigned char xdata keyvalue;
	keyvalue = KEY_ADDR;			//判键 #define KEY_ADDR XBYTE[0X4000] 读取按键值
	if(keyvalue!=0xff)
	{	
		if(Ticker > time)        //time按键以后的延时时间
		{
			LEDState=LEDState|0x80;	//有按键点亮背光
			LED=LEDState;
			Ticker = 0;				//按键延时计数器清零
			ESCTicker=0;		//背光关闭计时器清零
			return(keyvalue);
		}
		else
		{
			keyvalue = 0xff;
			return(keyvalue);
		}
	}
	else
	{
		Ticker = 0;
		return(0xff);
	 }
  }
//*********************************************************
//一级菜单显示
//*********************************************************
void d_first(void)      //一级菜单显示
{	unsigned char key_value;
	ArrayLine=0;
	ScrLine=0;
	while(1)
	{ 	
		ReverseLine(ScrLine);
	  	PrintStr(0,0,P_first[ArrayLine]);
	  	PrintStr(1,0,P_first[ArrayLine+1]);
		PrintStr(2,0,P_first[ArrayLine+2]);
		PrintStr(3,0,P_first[ArrayLine+3]);
		while(1)
		{	
			key_value=GetKey(12);
			if(key_value!=0xff)		//按键松开之后
			break;
		}
		switch(key_value)
		{	
				/* 当按向上键和加号键时向上移动*/
			case UP:
			case PLUS:
			    if (ArrayLine==0)				//当数组指针在第一行时，只有此时才考虑到最后一行
			    {//ArrayLine 显示屏变量
			    	if (ScrLine<=0)				//如果屏幕指针在第一行则到最后一行
					{   
						ScrLine = 3;			//ScrLine 反白显示行变量
						ArrayLine = ARRAYLINE;	//#define ARRAYLINE 2 一级菜单长度减4
					}
					else						//如果屏幕指针没有在最后一行则向上移动
						ScrLine--; 
				}
				else							//如果数组指针不在第一行
				{
					if (ScrLine<=0)				//如果屏幕指针在第一行，则要向上滚屏
						ArrayLine--;
					else
						ScrLine--;				//如果屏幕指针不在第一行，则向上移动
				}
				break;
			case DOWN:							//向下的逻辑与向上的逻辑相反
			case SUB:
			    if (ArrayLine>=ARRAYLINE)   	//#define ARRAYLINE 2
			    {
			    	if (ScrLine>=3)
					{
						ScrLine = 0;
						ArrayLine = 0;
					}
					else
						ScrLine++;
				}
				else
				{
					if (ScrLine>=3)
						ArrayLine++;
					else
						ScrLine++;
				}
				break;
			case ENTER:
				d_second(ArrayLine+ScrLine);		//进入菜单项对应的二级菜单
				break;
			case ESC:
				InitLcd();
				return;
			}
			}		
	}

//************************************************************
//二级菜单
//************************************************************
void d_second(second_num)
unsigned char second_num;
{	
	switch(second_num)
	{	case 0:		
			//d_realdata();						
			break;
		case 1:
			//d_save();			
			break;	
		case 2:
			//d_sysset();			
			break;
		case 3:
			//d_sprint();			
			break;
		case 4:
			//d_sysdebug();		
			break;
		case 5:
			//d_revsion();		
			break;
	}
}

//*****************************************************************
//主屏显示
//*****************************************************************
void welcome(void)
{	unsigned char xdata key_value,secb,seca,temp[9];//;,bb
	struct DATE d_date;	
	struct TIME t_time;
	while(1)
	 {
 		F_back = 0x55;				//在主屏,不需要返回. F_baCK=0X55标识需要返回标志
	 	key_value=GetKey(12);
		LED=LED&0xf3;
		if(key_value==ENTER)		//按确认键进入主菜单
		{	
	 		F_back = 0xaa;			//标识需要返回标志
			LED=LED&0xfc;
			d_first();				
		}
	 	secb=SECOND;				//每秒刷新一次时间
		watchdog();
		if(seca!=secb)
		{
			seca=secb;	
			GetTime(&t_time);
			GetDate(&d_date);
			if((d_date.year>99)||(d_date.mon>12)||(d_date.day>31)||(t_time.hour>23)||(t_time.min>59)||(t_time.sec>59))
			{
				//repair_time();
				InitLcd();
				PrintStr(1,2,"时钟出错");	//时钟出错后把年月日时分秒设为默认值后进入时钟设置界面
				Delay1(5000);
				InitLcd();
			}
			PrintStr(1,0,"  菜单程序调试  ");
			PrintStr(2,6,"    ");
			PrintStr(2,0,"    ");
			PrintStr(0,0,"    实验程序    ");
			PrintStr(3,6,"    ");
			PrintStr(3,0,"    ");

			temp[0] = d_date.year/10 + 0x30;
			temp[1] = d_date.year%10 + 0x30;
			temp[2] = '-';
			temp[3] = d_date.mon/10 + 0x30;
			temp[4] = d_date.mon%10 + 0x30;
			temp[5] = '-';
			temp[6] = d_date.day/10 + 0x30;
			temp[7] = d_date.day%10 + 0x30;
			temp[8] = 0;
			PrintStr(2,2,temp);

			temp[0] = t_time.hour/10 + 0x30;
			temp[1] = t_time.hour%10 + 0x30;
			temp[2] = ':';
			temp[3] = t_time.min/10 + 0x30;
			temp[4] = t_time.min%10 + 0x30;
			temp[5] = ':';
			temp[6] = t_time.sec/10 + 0x30;
			temp[7] = t_time.sec%10 + 0x30;
			temp[8] = 0;
			PrintStr(3,2,temp);
			}
		}
	}
void main()
{
	welcome();
}