LCD12864多级菜单设计

ID:521630 · 发表于 2020-10-2 19:13

#include "menu1.h"
#include "stm32f10x.h"
#include "12864.h"
#include "systick.h"
#include <stdio.h>
#include <stdlib.h>
#include "key4x4.h"
#include "public.h"

/*菜单结构体*/
typedef struct menu
{
u8 range_from,range_to; //当前选择的项开始及结束符号
u8 itemCount;//项目总数
u8 selected;//当前选择项
u8 *menuItems[17];//菜单项目
struct menu **subMenus;//子菜单
struct menu *parent;//上级菜单，若是主菜单则为null
void (**func)();//选择相应按键后执行的函数

}Menu;

Menu MainMenu1 = {
0,3,4,0, //默认显示0-3项，总共4项，当前选择0项，
  {
  "dis1          \x10",//"\x10"表示一个小箭头
  "dis2          \x10",
  "dis3          \x10",
  "dis4          \x10",
  }
};

Menu dis1Menu = {
0,3,4,0, //默认显示0-3项，总共4项，当前选择0项，
  {
  "secondline1 \x10",//"\x10"表示一个小箭头
  "secondline2 \x10",
  "secondline3       ",
  "secondline4 \x10",
  }
};
Menu dis2Menu = {
0,3,4,0, //默认显示0-3项，总共4项，当前选择0项，
  {
  "secondline1 \x10",//"\x10"表示一个小箭头
  "secondline2 \x10",
  "secondline3       ",
  "secondline4 \x10",
  }
};

Menu *currentMenu;//当前菜单
/*用于显示菜单*/
void displaymenu(u8 line)
{
int i;
line = 3-(currentMenu->range_to-line);
/*4次循环打印菜单*/
for(i = 0;i<4;i++)
Display_LCD_String(i,currentMenu->menuItems[i+currentMenu->range_from],5);
con_disp(line,1);

}
void func(void)
{

}

void initmenu(void)
{
currentMenu = &MainMenu1;

MainMenu1.subMenus = malloc(sizeof(&MainMenu1)*4);
MainMenu1.subMenus[0] = &dis1Menu;
MainMenu1.subMenus[1] = &dis2Menu;
MainMenu1.subMenus[2] = NULL;
MainMenu1.subMenus[3] = NULL;

MainMenu1.func = malloc(sizeof(&func)*4);
MainMenu1.func[0] = NULL;
MainMenu1.func[1] = NULL;
MainMenu1.func[2] = NULL;
MainMenu1.func[3] = NULL;

MainMenu1.parent = NULL;//mainmenu is top menu

dis1Menu.subMenus = malloc(sizeof(&dis1Menu)*4);
dis1Menu.subMenus[0] = NULL;
dis1Menu.subMenus[1] = NULL;
dis1Menu.subMenus[2] = NULL;
dis1Menu.subMenus[3] = NULL;

dis1Menu.func = malloc(sizeof(&func)*4);
dis1Menu.func[0] = NULL;
dis1Menu.func[1] = NULL;
dis1Menu.func[2] = NULL;
dis1Menu.func[3] = NULL;

dis1Menu.parent = &MainMenu1;//dis1menu parent menu is mainmenu1

dis2Menu.subMenus =  malloc(sizeof(&dis1Menu)*4);
dis2Menu.subMenus[0] = NULL;
dis2Menu.subMenus[1] = NULL;
dis2Menu.subMenus[2] = NULL;
dis2Menu.subMenus[3] = NULL;

dis2Menu.func = malloc(sizeof(&func)*4);
dis2Menu.func[0] = NULL;
dis2Menu.func[1] = NULL;
dis2Menu.func[2] = NULL;
dis2Menu.func[3] = NULL;

dis2Menu.parent = &MainMenu1;//dis2menu parent menu is mainmenu1

}

void menutest(void)
{
initmenu();
displaymenu(currentMenu->selected);

while(1)
{
if(key_pressed_flag)
{
ReadValue=Key_scan();
if(ReadValue!=0)
{
delay_ms(100);
if(ReadValue == Key_scan())
{
switch(ReadValue)
{
case key_sure://按键A（确认按键）
{
if(currentMenu->subMenus[currentMenu->selected] !=NULL)
{
currentMenu = currentMenu->subMenus[currentMenu->selected];
displaymenu(0);
}
break;
}
case key_up://按键B（上一行菜单）
{
if(currentMenu->selected == 0)
break;
else
{
currentMenu->selected--;
if(currentMenu->selected < currentMenu->range_from)
{
currentMenu->range_from = currentMenu->selected;
currentMenu->range_to = currentMenu->range_from+3;
}
displaymenu(currentMenu->selected);

}
break;
}
case key_down://按键C（下一行菜单）
{
if(currentMenu->selected == currentMenu->itemCount-1)
break;
else
{
currentMenu->selected++;
if(currentMenu->selected>currentMenu->range_to)
{
currentMenu->range_to = currentMenu->selected;
currentMenu->range_from = currentMenu->range_to-3;
}
displaymenu(currentMenu->selected);

}
break;
}
case key_back://按键D（返回）
{
if(currentMenu->parent!=NULL)
{
currentMenu = currentMenu->parent;
displaymenu(currentMenu->selected);
}
break;
}
default:
break;
}
}
}
}
}
}

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