轻量级菜单框架(C语言)

// 定义菜单信息，函数由主菜单模块定义并提供
static cotMainMenuCfg_t sg_tMainMenu = {{"主菜单", "Main Menu"}, Hmi_EnterMainHmi, NULL, NULL, NULL};

int main(void)
{
    cotMenu_Init(&sg_tMainMenu);

    while (1)
    {
        ...

        if (timeFlag)
        {
            timeFlag = 0;
            cotMenu_Task(); // 周期调度
        }
    }
}

// 扩展数据为图标文件名字
cotMenuList_t sg_MainMenuTable[] = 
{
    {{"音乐", "Music"},  Hmi_MusicEnter, Hmi_MusicExit, Hmi_MusicLoad, Hmi_MusicTask, "music"},
  
    {{"视频", "Video"},  NULL, Hmi_VideoExit, Hmi_VideoLoad, Hmi_VideoTask, "video"},
  
    {{"摄像机", "Camera"},  Hmi_CameraEnter, Hmi_CameraExit, Hmi_CameraLoad, Hmi_CameraTask, "camera"},
  
    {{"设置", "Setting"}, Hmi_SetEnter, Hmi_SetExit, Hmi_SetLoad,   Hmi_SetTask, "setting"},
};

/* 主菜单显示效果 */
static void ShowMainMenu(cotMenuShow_t *ptShowInfo)
{
    char *pszSelectDesc = ptShowInfo->pszItemsDesc[ptShowInfo->selectItem];
    oledsize_t idx = (128 - 6 * strlen(pszSelectDesc)) / 2;

    cotOled_DrawGraphic(40, 0, (const char *)ptShowInfo->pItemsExData[ptShowInfo->selectItem], 1);
  
    cotOled_SetText(0, 50, "                ", 0, FONT_12X12);
    cotOled_SetText(idx, 50, pszSelectDesc, 0, FONT_12X12);
}

void Hmi_EnterMainHmi(void)
{
    cotMenu_Bind(sg_MainMenuTable, COT_GET_MENU_NUM(sg_MainMenuTable), ShowMainMenu);
}

/* 设置的子菜单内容 */
cotMenuList_t sg_SetMenuTable[] = 
{
    {{"语言", "Language"},   NULL, NULL, NULL, OnLanguageFunction, NULL},
    {{"蓝牙", "Bluetooth"},  NULL, NULL, NULL, OnBluetoothFunction, NULL},
    {{"电池", "Battery"},    NULL, NULL, NULL, OnBatteryFunction, NULL},
    {{"储存", "Store"},      NULL, NULL, NULL, OnStorageFunction, NULL},
    {{"更多", "More"},       Hmi_MoreSetEnter, Hmi_MoreSetExit, Hmi_MoreSetLoad, Hmi_MoreSetTask, NULL},
};

/* 设置菜单显示效果 */
static void ShowSetMenu(cotMenuShow_t *ptShowInfo)
{
    uint8_t showNum = 3;
    menusize_t  tmpselect;

    cotMenu_LimitShowListNum(ptShowInfo, &showNum);

    printf("\e[0;30;46m ------------- %s ------------- \e[0m\n", ptShowInfo->pszDesc);

    for (int i = 0; i < showNum; i++)
    {
        tmpselect = i + ptShowInfo->showBaseItem;

        if (tmpselect == ptShowInfo->selectItem)
        {
            printf("\e[0;30;47m %d. %-16s\e[0m |\n", tmpselect + 1, ptShowInfo->pszItemsDesc[tmpselect]);
        }
        else
        {
            printf("\e[7;30;47m %d. %-16s\e[0m |\n", tmpselect + 1, ptShowInfo->pszItemsDesc[tmpselect]);
        }
    }
}

void Hmi_SetEnter(void)
{
    // 进入设置选项后绑定子菜单，同时为当前绑定的菜单设置显示效果函数
    cotMenu_Bind(sg_SetMenuTable, COT_GET_MENU_NUM(sg_SetMenuTable), ShowSetMenu); 
}

// 需要先进入主菜单
cotMenu_MainEnter();

// 选择上一个，支持循环选择（即第一个可跳转到最后一个）
cotMenu_SelectPrevious(true);

// 选择下一个，不支持循环选择（即最后一个不可跳转到第一个）
cotMenu_SelectNext(false);

// 进入，会执行菜单选项的 pfnEnterCallFun 回调函数
cotMenu_Enter();

// 退出，会执行父菜单该选项的 pfnExitCallFun 回调函数，并在退出后父菜单选项列表复位从头选择
cotMenu_Exit(true);