*       desc_len:  允許輸入的最大字符長度. 
*         注意, 當 mode == YES 時, 字符串的最后一個字節用作是否整行Bold的標志
*       mode:     2  --- 按鍵名稱的輸入
*                 1  --- 允許在輸入描述符同時設定字符的格式(是否為雙寬).
*                 0  --- 在輸入描述符同時不能選擇字符格式的設定.
*   當前暫時只支持一種輸入方式, 即直接輸入描述符, 沒有代碼選擇方式.
*   輸入的同時,也會顯示輸入結果,
*----------------------------------------------------------------------------*/
byte Get_Desc(byte *desc_str, byte desc_len, byte mode)
{
    byte bak_str[MAX_DESC_EX_LEN];    /* Can support the max description length */
	byte caps_flag = 0;		/* The capital letter input flag:
									1: Small letter input mode (Default)
									0: Capital letter input mode
									*/
    byte Symbole_flag = 0;   /*1-Symbole / 0-normal*/
    byte cch1,cch2;  // 當前輸入的最近的描述符. 主要考慮到控制字符的干擾
    word key;        // 當前按鍵的邏輯代碼輸入
    byte count;      // 當前輸入的字符個數.
    byte BOLD;       //設置是否需要支持整行雙寬 
    byte DB_Mode;    //設置當前字體是否為雙寬
	byte idx = 0;
    BOOL loop = TRUE;

    //顯示當前的操作界面
    Bak_Ts_Key_Tab = Ts_Key_Tab;
    Bak_Ts_Key_Table_Size = Ts_Key_Table_Size;
    Ts_Key_Tab = Desc_Input_KeyTab;
    Ts_Key_Table_Size = Desc_Input_Key_Size;
    Lcd_Desc_Input_Layout(mode, 0);

    memset(bak_str, 0, MAX_DESC_EX_LEN);
    cch1 = 0;
    cch2 = 0;
	key = KD_NULL;
    count=0;
    BOLD = NRM_FONT;
    DB_Mode = 0;
    
    if(mode == 2)//保留最后一個字節作為BOLD 的存放空間
        desc_len -=1;

    while(Key_Poll_Chk() != TRUE);//等待第一個按鍵按下
    while (loop)
    {
//   	 if(count == 0)
//            progflag = 0;
//        else
//      	    progflag = 1;
        
        //顯示輸入的字符串
        Lcd_Disp_Text_btn(BUF_ID_TL_INPUT, bak_str,count,MAX_TEXT, BTN_DFT_FONT, ALIGN_RIGHT);
        if(mode == 2)//需要顯示按鍵效果
        {
            memset(Input_Btn.desc, 0x20, MAX_BTN_DESC_LEN+1);
            memcpy(Input_Btn.desc, bak_str,count);
            Input_Btn.desc[MAX_BTN_DESC_LEN] = BOLD;
            Lcd_Draw_Button(Input_Btn);
        }
        
        key = GetKey();
        
        GetMainMode();//檢測控制鎖的位置
        if(GetMainMode() != CurrMode)
        {
            loop = FALSE;
            break;
        }

        switch( key )
        {
            case DS_CHAR://符號鍵輸入
                key = Check_Key(Ts_Key.curr_logi,RIGHT);//取當前代碼的邏輯輸入值
                if(key >= MAX_LAYOUT_KEY) 
                    continue;
                cch2 = cch1;
                cch1 = code[key + (Symbole_flag*2+caps_flag)*MAX_LAYOUT_KEY];
                if(cch1 == 0xff)
                {
                    cch1 = cch2;
                    continue;
                }
                if(count + DB_Mode < desc_len)
                {
                    if(DB_Mode)
                        bak_str[count++] = DB_BOLD_FONT;
                    bak_str[count++] = cch1;
                }
                break;
			case KD_CAP_SHIFT:
                caps_flag = (caps_flag+1)%2;
                Lcd_Desc_Input_Layout(mode, Symbole_flag*2+caps_flag+1);
                break;
            case KD_SYMBOLE:
                Symbole_flag = (Symbole_flag+1)%2;
                Lcd_Desc_Input_Layout(mode, Symbole_flag*2+caps_flag+1);
                break;
            case KD_BACK_SPACE:
                if(count > 0)
                {
                    count--;
                    if((count > 0)&&(bak_str[count-1] == DB_BOLD_FONT))
                        count--;
                }
                break;

            case KD_CANCEL:
                if(count > 0)
                    count = 0;
                else
                {
                    Lcd_Res_Pop_Text();
                    InCmd = KD_ENTER;
                    progflag = 0;
                    return NG;
                }
                break;

            case KD_DB_WIDTH:
                DB_Mode = (DB_Mode+1)%2;
                break;

            case KD_LARGE_FONT:
                if(mode == 0)
                    break;
                BOLD = (BOLD +1)%2;
                break;

            case KD_ENTER:
                if(count >0)
                {
                    if(mode != 1)
                    {
                        memset(desc_str, 0x20, desc_len);
                        memcpy(desc_str, bak_str, count);
                        if(mode != 0)
                            desc_str[desc_len] = BOLD_FONT;
                    }
                    else//mode == 1
                    {
                        byte tmp_i;
                        for(tmp_i = 0; tmp_i < count; tmp_i++)
                        {
                            if(bak_str[tmp_i] <0x20)//有控制字符輸入
                            {
//                                if(BOLD) 
//                                    desc_str[2*tmp_i] = DB_HTWDT_PRN;
//                                else     
                                    desc_str[2*tmp_i] = DB_WIDTH_PRN;
                                desc_str[2*tmp_i+1] = bak_str[tmp_i+1];
                                tmp_i++;
                                desc_str[2*tmp_i] = DB_WIDTH_PRN;
                                desc_str[2*tmp_i+1] = DB_WIDTH_PRN;
                            }
                            else
                            {
//                                if(BOLD) 
//                                    desc_str[2*tmp_i] = DB_HEIGT_PRN;
//                                else     
                                    desc_str[2*tmp_i] = NM_FONT_PRN;
                                desc_str[2*tmp_i+1] = bak_str[tmp_i];
                            }
                        }
                    }
                }
                Lcd_Res_Pop_Text();
                InCmd = KD_ENTER;
//                progflag = 1;
                return OK;

          #ifdef SCANNER          /* Support the scanner function */
            case SPLU:
          #endif /* End SCANNER */
            case KD_PAGE_UP:
            case KD_PAGE_DOWN:
            case KD_UP:
            case KD_DOWN:    
                loop = FALSE;
                break;
            default:
                break;
        }
    } // End while
    Lcd_Res_Pop_Text();
    progflag = 0;
    InCmd = KD_NULL;
    return NG;
} 


/*------------------------------------------------------------------*
 *					Calculate the description length
 *------------------------------------------------------------------*/
byte Get_Desc_Len(byte *disp_str, byte disp_len)
{
	byte i;

	i = disp_len;
   disp_str += disp_len-1;
   while((*disp_str == ' ') || (*disp_str == DB_WIDTH_PRN))
   {
   	disp_str --;
      i --;
      if (i == 0)
         break;
   }
   return (i);
}
#define	PRN_DBWD_FREE_BYTE			0xff			// 雙寬屬性后續字節為空.

/************************************************************
		The next sentences is create by Jiang WangMing
************************************************************/
// Note: In this funciton not consider of the disp_len is 0
byte Get_Desc_Len_Ex(byte *disp_str, byte disp_len, byte mode)
{
	byte	i;
	byte	db_wid_flag;		/* Double width flag */

	if (mode == NO)
	{
		return (Get_Desc_Len(disp_str, disp_len));
	}
	else
	{
		i = disp_len;
		disp_str += 2*disp_len - 1;
		db_wid_flag = 0;
		while(TRUE)
		{
			if((*disp_str == PRN_DBWD_FREE_BYTE) && (!db_wid_flag))		/* The double width */
			{
				db_wid_flag = 1;
				disp_str -= 2;
			}
			else if(*disp_str == ' ')
			{
				if(db_wid_flag)
					i -= 2;
				else
					i -= 1;
				db_wid_flag = 0;
				disp_str -= 2;
				if(i == 0)
					break;
			}
			else
			{
				break;
			}
		}
		return (i);
	}
}
/***********************************************************/


/*-----------------------------------------------------------------------------*
 *                Display the description to the screen,                       *
 *                   only display the number to the VFD.                       *
 *    Note: This function is especial for the description's format is sepecial *
 *          The description's format has no end tag, the description is append *
 *             with '0'.                                                       *
 *-----------------------------------------------------------------------------*/
void Disp_Desc_Len(byte *disp_str, byte disp_len, byte mode)
{
   byte len;
	byte	i;

	if(mode == NO)
	{
	   len = Get_Desc_Len_Ex(disp_str, disp_len, mode);
		if(len > MAX_LCD_NUM-3)		// 保留三個空間作為代碼輸入時候的顯示
			len = MAX_LCD_NUM-3;
		for(i = 0; i < len; i ++)
		{
			Insert_Char(disp_str[i], i);
		}
	}
	else
	{
		len = Get_Desc_Len_Ex(disp_str, disp_len, mode);
		disp_Char_Str(Disp_Desc_Length, 0);
		Insert_Num(len/10, 14);
		Insert_Num(len%10, 15);
	}
}

///////////////////////////////////////////////////////////////////////////////
// Descript: 	計算字符串的打印寬度,以普通字體為單位,此字符串符合打印的標準格式.
// In Param:	*str, maxLen -- 字符串的最大長度(注: 不包含格式字符的長度).
// Out Param:	void
// Return:		字符串的打印寬度.
///////////////////////////////////////////////////////////////////////////////
byte Prn_CalcuWidth(const byte *str, byte maxLen)
{
	byte width = 0;
	byte i;

	for (i=0; i<maxLen; i++)
	{
		switch (*str++)
		{
		case NM_FONT_PRN:	if (*str++ == 0)	return width;	width++;	break;
		case DB_HEIGT_PRN:	if (*str++ == 0)	return width;	width++;	break;
		case DB_WIDTH_PRN:	if (*str++ == 0)	return width;	width+=2;	break;
		case DB_HTWDT_PRN:	if (*str++ == 0)	return width;	width+=2;	break;
		case PRN_DBWD_FREE_BYTE: str++; break;
		default:		                        return width;
		}
	}
	return width;
}