#include <wstring.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <Arduino.h>
#include "ui_dacai.h"
// #include <libmaple/usart.h>
#include "../../MarlinCore.h"
#include "../../inc/MarlinConfig.h"
#include "../../core/serial.h"
#include "../../core/macros.h"
#include "../../../Configuration.h"
#include "dwin_lcd.h"

#ifdef LCD_SERIAL_PORT
  #define LCDSERIAL LCD_SERIAL
#elif SERIAL_PORT_2
  #define LCDSERIAL LCDSERIAL
#endif

uint8_t IsDacaiScreenConnect = true;
char unitBuf[4][10] = {"", "%", "mm", "℃"};

//#if ENABLED(UI_SHOW_t)
inline uint16_t work16(const uint8_t high, const uint8_t low) { return (high) << 8U | (low); }

UI_SHOW_t uiShow;

// dwin模块初始化(串口号为LCD_SERIAL_PORT)
void UI_SHOW_t::RTS_Init(void)
{
  #ifndef LCD_BAUDRATE
    #define LCD_BAUDRATE 115200
  #endif
  SERIAL_ECHO("lcd serial init");
  LCDSERIAL.begin(LCD_BAUDRATE);
  const millis_t serial_connect_timeout = millis() + 1000UL;
  while (!LCDSERIAL.connected() && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
  delay(500); // 延时等待屏幕准备好

  for (uint8_t i = 0; i < 5; i++)
  {
    if (UI_Handshake())
    {
      SERIAL_ECHO("\r\n RTS_Init OK!!!");
      IsDacaiScreenConnect = true;
      break;
    }
    else
    {
      SERIAL_ECHO("\r\n RTS_Init failse!!!");
      IsDacaiScreenConnect = false;
      continue;
    }
  }
}

UI_SHOW_t::UI_SHOW_t()
{
  recdat.head = CMD_HEAD;

  frameEnd[0] = FBONE;
  frameEnd[1] = FBTWO;
  frameEnd[2] = FBTHREE;
  frameEnd[3] = FBFOUR;

  memset(databuf,0, sizeof(databuf));
}

static inline void dwin_uart_write(unsigned char *buf, int len)
{
  LOOP_L_N(n, len) { LCDSERIAL.write(buf[n]); }
}

void UI_SHOW_t::RTS_SndData(void)
{
  if(snddat.head == CMD_HEAD)
  {
    databuf[0] = snddat.head;
    databuf[1] = snddat.cmd_type;   // 命令类型
    databuf[2] = snddat.ctrl_msg;   // 消息类型
    // 表示上传的组态控件指令
    if (/*work16(snddat.cmd_type, snddat.ctrl_msg) == CMD_SEND_TO_SCREEN && */snddat.bytelen >= 7)
    {
      databuf[3] = snddat.screen_id >> 8;
      databuf[4] = snddat.screen_id & 0x00FF;
      databuf[5] = snddat.control_id >> 8;
      databuf[6] = snddat.control_id & 0xFF;
      if ((snddat.bytelen - 7) != 0)
      {
        memcpy(&databuf[7], snddat.data, (snddat.bytelen - 7));
      }
      // 增加帧尾 
      memcpy(&databuf[7 + (snddat.bytelen - 7)], frameEnd, 4);
    }

    dwin_uart_write(databuf, snddat.bytelen + 4);

    memset(&snddat, 0, sizeof(snddat));
    memset(databuf, 0, sizeof(databuf));
    snddat.head = CMD_HEAD;
  }
}

void UI_SHOW_t::RTS_SndData(const String &s, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd /*= VarAddr_W*/)
{
  if(s.length() < 1)
  {
    return;
  }
  RTS_SndData(s.c_str(), _screen_id, _control_id, cmd);
}

void UI_SHOW_t::RTS_SndData(const char *str, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/*= VarAddr_W*/)
{
  int len = strlen(str);
  int i = 0;
  if( len >= 0)
  {
    databuf[0] = CMD_HEAD;
    databuf[1] = cmd >> 8;     // 命令类型
    databuf[2] = cmd & 0x00FF; // 消息类型
    databuf[3] = _screen_id >> 8;
    databuf[4] = _screen_id & 0x00FF;
    databuf[5] = _control_id >> 8;
    databuf[6] = _control_id & 0xFF;

    for(i = 0; i < len ; i++)
    {
      databuf[7 + i] = str[i];
    }
    // 增加帧尾
    memcpy(&databuf[7 + i], frameEnd, 4);

    dwin_uart_write(databuf, len + 11);

    memset(databuf, 0, sizeof(databuf));
  }
}

void UI_SHOW_t::RTS_SndData(char c, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/*= VarAddr_W*/)
{
  snddat.head = CMD_HEAD;
  snddat.cmd_type = cmd >> 8;     // 命令类型
  snddat.ctrl_msg = cmd & 0x00FF; // 消息类型
  snddat.screen_id = _screen_id;
  snddat.control_id = _control_id;
  snddat.data[0] = c;
  snddat.bytelen = 8;
  RTS_SndData();
}

void UI_SHOW_t::RTS_SndData(unsigned char* str, unsigned long addr, unsigned long addr1, unsigned long cmd)
{
  RTS_SndData((char *)str, addr, addr1, cmd);
}

void UI_SHOW_t::RTS_SndData(int n, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/*= VarAddr_W*/)
{
  snddat.head = CMD_HEAD;
  snddat.cmd_type = cmd >> 8;     // 命令类型 
  snddat.ctrl_msg = cmd & 0x00FF; // 消息类型
  snddat.screen_id = _screen_id;
  snddat.control_id = _control_id;

  if (cmd == CMD_ICON_SET_FRAME || cmd == CMD_ICON_SHOW_HIDE)
  {
    snddat.data[0] = n & 0xFF;
    snddat.bytelen = 8;
  }
  else
  {
    // if(cmd == CMD_SEND_TO_SCREEN)
    if(n > 0xFFFF)
    {
      snddat.data[0] = n >> 24;
      snddat.data[1] = (n >> 16) & 0xFF;
      snddat.data[2] = (n >> 8) & 0xFF;
      snddat.data[3] = n & 0xFF;
      snddat.bytelen = 11;
    }
    else
    {
      snddat.data[0] = (n >> 8) & 0xFF;
      snddat.data[1] = n & 0xFF;
      snddat.bytelen = 9;
    }
  }
  RTS_SndData();
}

void UI_SHOW_t::RTS_SndData(unsigned int n, unsigned long addr, unsigned long addr1, unsigned long cmd)
{
  RTS_SndData((int)n, addr, addr1, cmd);
}

void UI_SHOW_t::RTS_SndData(float n, unsigned long addr, unsigned long addr1, unsigned long cmd)
{
  RTS_SndData((int)n, addr, addr1, cmd);
}

void UI_SHOW_t::RTS_SndData(long n, unsigned long addr, unsigned long addr1, unsigned long cmd)
{
  RTS_SndData((unsigned long)n, addr, addr1, cmd);
}

void UI_SHOW_t::RTS_SndData(unsigned long n, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/*= VarAddr_W*/)
{
  snddat.head == CMD_HEAD;
  snddat.cmd_type = cmd >> 8;     // 命令类型
  snddat.ctrl_msg = cmd & 0x00FF; // 消息类型
  snddat.screen_id = _screen_id;
  snddat.control_id = _control_id;

  if(work16(snddat.cmd_type, snddat.ctrl_msg) == CMD_SEND_TO_SCREEN)
  {
    if(n > 0xFFFF)
    {
      snddat.data[0] = n >> 24;
      snddat.data[1] = (n >> 16) & 0xFF;
      snddat.data[2] = (n >> 8) & 0xFF;
      snddat.data[3] = n & 0xFF;
      snddat.bytelen = 11;
    }
    else
    {
      snddat.data[0] = (n >> 8) & 0xFF;
      snddat.data[1] = n & 0xFF;
      snddat.bytelen = 9;
    }
  }
  RTS_SndData();
}

/* 发送的数据不用指定 页面ID、控件ID */
void UI_SHOW_t::RTS_SndData(int n, unsigned long cmd/* = CMD_GOTO_SCREEN*/)
{
  if(cmd == CMD_GOTO_SCREEN)
  {
    databuf[0] = CMD_HEAD;
    databuf[1] = cmd >> 8;     // 命令类型
    databuf[2] = cmd & 0x00FF; // 消息类型
    databuf[3] = n >> 8;
    databuf[4] = n & 0xFF;

    // 增加帧尾
    memcpy(&databuf[5], frameEnd, 4);

    dwin_uart_write(databuf, 9);

    memset(databuf, 0, sizeof(databuf));
  }
}

bool UI_SHOW_t::UI_Handshake(void)
{
  uint8_t receivedbyte;
  uint8_t cmd_pos = 0;
  uint8_t buffer[10];
  // 队列帧尾检测状态
  static uint32_t cmd_state = 0;
  uint8_t handBuf[6] = {0xEE, 0x55, 0xFF, 0xFC, 0xFF, 0xFF};
  // 发送握手信息
  databuf[0] = CMD_HEAD;
  databuf[1] = 0x04;
  memcpy(&databuf[2], frameEnd, 4);
  dwin_uart_write(databuf, 6);
  memset(databuf, 0, sizeof(databuf));

  delay(10);
  while(LCD_SERIAL.available())
  {
    // 取一个数据
    receivedbyte = LCD_SERIAL.read();
    //指令的第一个字节必须是帧头
    if(cmd_pos == 0 && receivedbyte != CMD_HEAD)
    {
      continue;
    }

    if(cmd_pos < 10)
    {
      // 防止溢出
      buffer[cmd_pos++] = receivedbyte;
    }
    else
    {
      break;
    }

    // 拼接最后4字节，组成最后一个32位整数
    cmd_state = ((cmd_state << 8) | receivedbyte);
    delay(2);
    // 帧尾判断
    if(cmd_state == CMD_TAIL)
    {
      for (int i = 0; i < cmd_pos; i++)
      {
        SERIAL_ECHOLNPAIR("  ", buffer[i]);
      }

      if (memcmp(buffer, handBuf, sizeof(handBuf)) == 0)
      {
        return true;
      }
      cmd_state = 0;      // 重新检测帧尾
      cmd_pos = 0;        // 复位指令指针
    }
  }
  return false;
}

//切换界面
void UI_SHOW_t::UI_GotoScreen(int screen)
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  RTS_SndData(screen);
}

/*
 * frame：       ICON控件中的第frame个图标
 * _screen_id：  图片页面
 * _control_id:  控件ID
 * cmd == CMD_ICON_SET_FRAME:  设置与“图标控件”、“动画控件” 的显示（指定帧播放）
 *        Screen_id(2个字节) + Control_id(2个字节) + FlashImgae_ID(1个字节)某一动画帧ID
 * 
 * cmd == CMD_ICON_START:    启动动画播放, 此时frame无效
 *        Screen_id(2个字节) + Control_id(2个字节)
 * 
 * cmd == CMD_ICON_STOP:     停止动画播放, 此时frame无效
 *        Screen_id(2个字节) + Control_id(2个字节)
 * 
 * cmd == CMD_ICON_PAUSE:    暂停动画播放, 此时frame无效
 *        Screen_id(2个字节) + Control_id(2个字节)
 */
void UI_SHOW_t::UI_ShowIcon(int frame , unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/* = CMD_ICON_SET_FRAME*/)
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  if (cmd == CMD_ICON_SET_FRAME)
  {
    RTS_SndData(frame, _screen_id, _control_id, cmd);
  }
  else if (cmd == CMD_ICON_START || cmd == CMD_ICON_STOP || cmd == CMD_ICON_PAUSE)
  {
    snddat.head = CMD_HEAD;
    snddat.cmd_type = cmd >> 8;     // 命令类型
    snddat.ctrl_msg = cmd & 0x00FF; // 消息类型
    snddat.screen_id = _screen_id;
    snddat.control_id = _control_id;
    snddat.bytelen = 7;
    RTS_SndData();
  }
}

/*
 * 功能：        ICON控件的控制
 * _screen_id：  图片页面
 * _control_id:  控件ID
 * cmd == CMD_ICON_SHOW_HIDE:  显示或隐藏控件
 *        Screen_id(2个字节) + Control_id(2个字节) + Enable(1个字节) 0x00：屏蔽或隐藏控件;  0x01: 屏蔽/隐藏解除
 * 
 * 注意：1、控件使用‘自动播放’且 ‘初始化显示’先择为 '否' 时，把控件显示出来，才开始第一次播放
 */
void UI_SHOW_t::UI_ShowOrHideConctrols(bool isDisplay , unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/* = CMD_ICON_SHOW_HIDE*/)
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //     return;

  if (cmd == CMD_ICON_SHOW_HIDE)
  {
    RTS_SndData(isDisplay, _screen_id, _control_id, cmd);
  }
}

void UI_SHOW_t::UI_ShowText(char* n , unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/* = CMD_SEND_TO_SCREEN*/)
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  RTS_SndData(n, _screen_id, _control_id, cmd);
}

/*
 * n：           需要发送的内容
 * _screen_id：  图片页面
 * _control_id:  控件ID
 * cmd == CMD_SEND_TO_SCREEN:  发送字符串到屏幕显示
 *        Screen_id(2个字节) + Control_id(2个字节) + Strings(不定长)
 * cmd == CMD_TEXT_TWINKLE:    设置文本闪烁，闪烁周期(10毫秒单位)，0表示不闪烁
 *        Screen_id(2个字节) + Control_id(2个字节) + Cycle(2个字节)
 * cmd == CMD_TEXT_ROLL:       设置文本滚动，文本滚动速度(每秒移动像素)，0表示不滚动
 *        Screen_id(2个字节) + Control_id(2个字节) + Speed(2个字节)
 * cmd == CMD_TEXT_COLOR_FORE: 文本-前景色
 *        Screen_id(2个字节) + Control_id(2个字节) + BK_Color(2个字节)
 */
void UI_SHOW_t::UI_ShowText(int n ,                                     // 需要发送的内容(数据 或 控件属性设置)
                            unsigned long _screen_id,                   // 所在屏幕ID
                            unsigned long _control_id,                  // 控件ID
                            unsigned long cmd/* = CMD_SEND_TO_SCREEN*/, // 命令，默认为 CMD_SEND_TO_SCREEN(发送文本到屏幕)
                            uint8_t unit)                               // 单位
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  static char txt[15] = {0};
  memset(txt, 0, sizeof(txt));
  // 注意：根据大彩协议，对于文本的显示需要转换成字符串，对于文本的属性（文本闪烁、文本滚动、设置颜色等，不需要转变成字符串）
  if (cmd == CMD_SEND_TO_SCREEN)
  {
    itoa(n, txt, 10);
    // 单位处理
    if (unit != U_NULL)
    {
      strcat(txt, unitBuf[unit]);
    }
    UI_ShowText(txt, _screen_id, _control_id, cmd);
  }
  else
  {
    RTS_SndData(n, _screen_id, _control_id, cmd);
  }
}

void UI_SHOW_t::UI_ShowText(float n ,                                   // 需要显示的数字
                            uint8_t ndigit,                             // 小数位数 
                            unsigned long _screen_id,                   // 所在屏幕ID
                            unsigned long _control_id,                  // 控件ID
                            unsigned long cmd/* = CMD_SEND_TO_SCREEN*/, 
                            uint8_t unit/* = U_NULL*/)                  // 单位
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  char txt[15];
  char isNegative = false; // 是否为负数标志
  int len = 0;
  int integer;
  int decimal ;  // = (int)((unsigned long)(n*1000))%1000;

  if (n < 0)
  {
    isNegative = true;
    n = -n;
  }
  integer = n;        // 整数部分
  // 小数部分
  if (ndigit == 3)
  {
    decimal = (int)((unsigned long)(n*1000))%1000;
  }
  else if (ndigit == 2)
  {
    decimal = (int)((unsigned long)(n*100))%100;
  }
  else
  {
    decimal = (int)((unsigned long)(n*10))%10;
  }

  itoa(integer, txt, 10);
  len = strlen(txt);
  txt[len++] = '.';
  // itoa(decimal, &txt[len+1], 10);
  // 小数部分
  if (ndigit == 3)
  {
    txt[len++] = decimal/100 + 0x30;
    txt[len++] = decimal%100/10 + 0x30;
    txt[len++] = decimal%10 + 0x30;
  }
  else if (ndigit == 2)
  {
    txt[len++] = decimal/10 + 0x30;
    txt[len++] = decimal%10 + 0x30;
  }
  else
  {
    txt[len++] = decimal%10 + 0x30;
  }
  // 单位处理
  if (unit != U_NULL)
  {
    int unitLen = strlen(unitBuf[unit]);
    memcpy(&txt[len++], &unitBuf[unit], unitLen);
    len += unitLen;
  }
  txt[len++] = '\0';

  // 特殊处理浮点型
  if (isNegative)
  {
    for (int i = sizeof(txt) - 1; i > 0; i--)
    {
      txt[i] = txt[i - 1];
    }
    txt[0] = '-';
  }

  UI_ShowText(txt, _screen_id, _control_id, cmd);
}

void UI_SHOW_t::UI_ShowTextClear(unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/* = CMD_SEND_TO_SCREEN*/)
{
  // 检测不是大彩屏连接，直接返回
  // if (!IsDacaiScreenConnect)
  //   return;

  RTS_SndData("", _screen_id, _control_id, cmd);
}

void UI_SHOW_t::UI_ShowTextUnicode(const char *str, const int strlen, unsigned long _screen_id, unsigned long _control_id, unsigned long cmd/*= VarAddr_W*/)
{
  // if (!IsDacaiScreenConnect)
  //   return;
  int len = strlen;
  // SERIAL_ECHOLNPAIR("\r\n\r\n\r\n len = ", len);
  int i = 0;
  if( len >= 0)
  {
    databuf[0] = CMD_HEAD;
    databuf[1] = cmd >> 8;     // 命令类型
    databuf[2] = cmd & 0x00FF; // 消息类型
    databuf[3] = _screen_id >> 8;
    databuf[4] = _screen_id & 0x00FF;
    databuf[5] = _control_id >> 8;
    databuf[6] = _control_id & 0xFF;

    for(i = 0; i < len ; )
    {
      databuf[7 + i] = str[i + 1];
      databuf[7 + i + 1] = str[i];
      if (databuf[7 + i] == 0 && databuf[7 + i + 1] == 0)
      {
        break;
      }
      i = i + 2;
    }
    databuf[7 + i] = 0;
    databuf[7 + i + 1] = 0;
    // 增加帧尾 
    memcpy(&databuf[7 + i + 2], frameEnd, 4);

    dwin_uart_write(databuf, i + 2 + 13);

    memset(databuf, 0, sizeof(databuf));
  }
}

unsigned long arr_data_num;
/**
 * 功能:    发送jpg图片前的握手动作
 * jpeg:    指向图片数据的指针
 * path:    发送的路径
 */
bool UI_SHOW_t::UI_SendJpegDateHandshake(unsigned long size, const char *path)
{
  // 当使用大彩屏时
  if (!IsDacaiScreenConnect)
    return true;

  uint8_t receivedbyte;
  uint8_t cmd_pos = 0;
  uint8_t buffer[10];
  uint32_t cmd_state = 0;  // 队列帧尾检测状态

  uint8_t cmd_dl_response[7] = {0xEE,0xFB,0x01,0xFF,0xFC,0xFF,0xFF};   // 屏幕返回的下载确认命令
  unsigned long jpgSize = size;

  // 下载命令
  databuf[0] = CMD_HEAD;
  databuf[1] = 0xFB;
  // 下载包大小
  databuf[2] = (DACAI_JPG_BYTES_PER_BUF>>8)&0xff;
  databuf[3] = (DACAI_JPG_BYTES_PER_BUF)&0xff;
  // 零食波特率，不修改时，设置0
  databuf[4] = (0>>8)&0xff;
  databuf[5] = (0)&0xff;
  // 文件大小
  databuf[6] = (jpgSize>>24)&0xff;
  databuf[7] = (jpgSize>>16)&0xff;
  databuf[8] = (jpgSize>>8)&0xff;
  databuf[9] = (jpgSize)&0xff;
  // 文件路径
  memcpy(&databuf[10], path, strlen(path));
  // 增加帧尾
  memcpy(&databuf[strlen(path) + 12], frameEnd, 4);
  // 发送命令帧
  // SERIAL_ECHO("\r\n ");
  // for (int aa = 0; aa <= strlen(path) + 16; aa++) {
  //     SERIAL_ECHO(databuf[aa]);
  //     SERIAL_ECHO("  ");
  // }
  dwin_uart_write(databuf, strlen(path) + 16);

  memset(databuf, 0, sizeof(databuf));
  delay(20);
  uint32_t ms = millis();

  uint32_t MsTest = millis();
  while(1)
  {
    watchdog_refresh();
    if (millis() - ms >= 3000)
    {
      return false;
    }
    // 接收处理
    if(LCD_SERIAL.available())
    {
      // 取一个数据
      receivedbyte = LCD_SERIAL.read();
      if(cmd_pos == 0 && receivedbyte != CMD_HEAD)
      {
        // 指令的第一个字节必须是帧头
        continue;
      }

      if(cmd_pos < 10)
      {
        // 防止溢出
        buffer[cmd_pos++] = receivedbyte;
      }
      else
      {
        return false;
      }

      // 拼接最后4字节，组成最后一个32位整数
      cmd_state = ((cmd_state << 8) | receivedbyte);
      delay(2);
      // 帧尾判断
      if(cmd_state == CMD_TAIL)
      {
        // for (int i = 0; i < cmd_pos; i++)
        //   SERIAL_ECHOLNPAIR("  ", buffer[i]);

        if (memcmp(buffer, cmd_dl_response, sizeof(cmd_dl_response)) == 0)
        {
          break;
        }
        // 重新检测帧尾
        cmd_state = 0;
      }
    }
  }
  if (ENABLED(USER_LOGIC_DEUBG))
  {
    SERIAL_ECHOLNPAIR("\r\n UI_SendJpegDateHandshake time1 = ", millis() - MsTest);
  }
  // DWIN_Handshake();
  return true;
}

/**
 * 功能:    发送jpg图片整包数据
 * jpeg:    指向图片数据的指针
 * size:    图片数据长度（从gcode里面读取出来）
 */
 bool UI_SHOW_t::UI_SendJpegDate(const char *jpeg, unsigned long size)
{
  static char buf[DACAI_JPG_BYTES_PER_BUF] = {0};
  unsigned long jpgSize = size;
  static uint8_t sn = 0;
  uint16_t i, j;
  uint16_t checkSum = 0;
  int sendPacket;
  uint32_t MS = millis();

  databuf[0] = 0xAA;
  databuf[1] = 0xC0;
  databuf[4 + DACAI_JPG_BYTES_PER_PACKET] = 0xCC;
  databuf[4 + DACAI_JPG_BYTES_PER_PACKET + 1] = 0x33;
  databuf[4 + DACAI_JPG_BYTES_PER_PACKET + 2] = 0xC3;
  databuf[4 + DACAI_JPG_BYTES_PER_PACKET + 3] = 0X3C;

  for (i = 0; i < jpgSize / DACAI_JPG_BYTES_PER_FRAME; i++)
  {
    // 发送命令帧 -- dwin_uart_write 这个接口传入的字节长度不要超255
    for (sendPacket = 0; sendPacket < jpgSize / DACAI_JPG_BYTES_PER_PACKET; sendPacket++)
    {
      // SERIAL_ECHOLN(sendPacket);
      // SERIAL_ECHOLN(arr_data_num);
      databuf[2] = (arr_data_num) >> 8;
      databuf[3] = (arr_data_num) & 0xFF;
      arr_data_num += 120;
      memcpy(&databuf[4], &jpeg[sendPacket * DACAI_JPG_BYTES_PER_PACKET], DACAI_JPG_BYTES_PER_PACKET);
      watchdog_refresh();
      dwin_uart_write(databuf, DACAI_JPG_BYTES_PER_PACKET + 8);
      watchdog_refresh();
      delay(5);
    }

    // 2048字节发送完剩下的
    if(jpgSize % DACAI_JPG_BYTES_PER_PACKET)
    {
      j = (jpgSize - DACAI_JPG_BYTES_PER_PACKET * sendPacket);
      databuf[2] = (arr_data_num) >> 8;
      databuf[3] = (arr_data_num) & 0xFF;
      arr_data_num+=j/2;
      databuf[4 + j] = 0xCC;
      databuf[4 + j + 1] = 0x33;
      databuf[4 + j + 2] = 0xC3;
      databuf[4 + j + 3] = 0X3C;
      memcpy(&databuf[4], &jpeg[(sendPacket * DACAI_JPG_BYTES_PER_PACKET)], j);
      watchdog_refresh();
      delay(5);
      dwin_uart_write(databuf, j + 8);
    }
  }

  if (jpgSize % DACAI_JPG_BYTES_PER_FRAME)
  {
    // 小于2048字节处理
    for (sendPacket = 0; sendPacket < jpgSize / DACAI_JPG_BYTES_PER_PACKET; sendPacket++)
    {
      databuf[2] = (arr_data_num) >> 8;
      databuf[3] = (arr_data_num) & 0xFF;
      arr_data_num+=120;
      memcpy(&databuf[4], &jpeg[sendPacket * DACAI_JPG_BYTES_PER_PACKET], DACAI_JPG_BYTES_PER_PACKET);
      dwin_uart_write(databuf, DACAI_JPG_BYTES_PER_PACKET + 8);
      watchdog_refresh();
      delay(5);
    }

    // 2048字节发送完剩下的
    if(jpgSize % DACAI_JPG_BYTES_PER_PACKET)
    {
      j = (jpgSize - DACAI_JPG_BYTES_PER_PACKET * sendPacket);
      databuf[2] = (arr_data_num) >> 8;
      databuf[3] = (arr_data_num) & 0xFF;
      arr_data_num+=j;
      databuf[4 + j] = 0xCC;
      databuf[4 + j + 1] = 0x33;
      databuf[4 + j + 2] = 0xC3;
      databuf[4 + j + 3] = 0X3C;
      memcpy(&databuf[4], &jpeg[(sendPacket * DACAI_JPG_BYTES_PER_PACKET)], j);
      watchdog_refresh();
      delay(5);
      dwin_uart_write(databuf, j + 8);
    }
  }
  return true;
}

void UI_SHOW_t::UI_DisplayJpegDate(unsigned long _screen_id)
{
  // 当使用大彩屏时
  // if (!IsDacaiScreenConnect)
  //   return ;
  databuf[0] = CMD_HEAD;
  databuf[1] = 0xB5;   // 命令类型
  databuf[2] = 0x01;   // 消息类型
  databuf[3] = _screen_id >> 8;
  databuf[4] = _screen_id & 0xFF;

  // 增加帧尾
  memcpy(&databuf[5], frameEnd, 4);

  dwin_uart_write(databuf, 9);
}

// 修改语言
void UI_SHOW_t::UI_ChangeLanguage(unsigned int lang)
{
  databuf[0] = CMD_HEAD;
  databuf[1] = CMD_SET_CHANGE_LNGUAGE;   // 命令类型
  databuf[2] = lang & 0xFF;
  databuf[3] = (CMD_SET_CHANGE_LNGUAGE + lang) & 0xFF;

  // 增加帧尾
  memcpy(&databuf[4], frameEnd, 4);

  dwin_uart_write(databuf, 8);
}