<?php

//获取字符串中中文字符和英文字符的个数
function GetStringNum($string, &$ChineseCharNum, &$EnglishCharNum)
{
	$encode = 'UTF-8';

	$str_num = mb_strlen($string, $encode);

	$j = 0;

	for($i=0; $i < $str_num; $i++)
	{
		if(ord(mb_substr($string, $i, 1, $encode)) > 0xa0)
		{
			$j++;
		}
	}

	$ChineseCharNum = $j;
	$EnglishCharNum = $str_num - $j;
}

function GetShowLength($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*2 + $stringEnglishCharNum;

	return $stringShowLength;
}

function GetBigStringLewaimai($string)
{
	$showString = "<1D2111>" . $string . "<1D2100>";
	
	return $showString;
}

function GetBigStringFeyin($string)
{
	$showString = "<Font# Bold=0 Width=2 Height=2>" . $string . "</Font#>";

	return $showString;
}

function GetHalfWidthBigStringLewaimai($string)
{
	$showString = "<1D2101>" . $string . "<1D2100>";
	
	return $showString;
}

function GetHalfWidthBigStringFeyin($string)
{
	$showString = "<Font# Bold=0 Width=1 Height=2>" . $string . "</Font#>";

	return $showString;
}

function CenterTitleLeWaiMai($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*4 + $stringEnglishCharNum*2;

	if ($stringShowLength > 32)
	{
		//如果超过一行，那么就不双倍宽度了
		return GetHalfWidthBigStringLewaimai(CenterString($string));
	}

	//计算左边需要的空格数量
	$spaceNum = (32 - $stringShowLength)/2;
	$spaceString = "";
	for ($i = 0; $i < $spaceNum; $i++)
	{
		$spaceString = $spaceString . " ";
	}

	$showString = $spaceString . "<1D2111>" . $string . "<1D2100>";

	return $showString;
}

//将标题居中显示
function CenterTitleFeyin($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*4 + $stringEnglishCharNum*2;

	if ($stringShowLength > 32)
	{
		//如果超过一行，那么就不双倍宽度了
		return GetHalfWidthBigStringFeyin(CenterString($string));
	}

	//计算左边需要的空格数量
	$spaceNum = (32 - $stringShowLength)/2;
	$spaceString = "";
	for ($i = 0; $i < $spaceNum; $i++)
	{
		$spaceString = $spaceString . " ";
	}
	
	$showString = $spaceString . "<Font# Bold=1 Width=2 Height=2>" . $string . "</Font#>";

	return $showString;
}

//将字符串居中显示（用空格补齐，一行按打印机的32位显示宽度，即最大16个汉字或32个字母算）
function CenterString($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*2 + $stringEnglishCharNum;

	if ($stringShowLength > 32)
	{
		//如果超过一行，那么就不用居中了
		return $string;
	}

	//计算左边需要的空格数量
	$spaceNum = (32 - $stringShowLength)/2;
	$spaceString = "";
	for ($i = 0; $i < $spaceNum; $i++)
	{
		$spaceString = $spaceString . " ";
	}

	$showString = $spaceString . $string;

	return $showString;
}

//将字符串右对齐显示
function RightString($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*2 + $stringEnglishCharNum;

	if ($stringShowLength > 32)
	{
		//如果超过一行，那么就不用右对齐
		return $string;
	}

	//计算左边需要的空格数量
	$spaceNum = 32 - $stringShowLength;
	$spaceString = "";
	for ($i = 0; $i < $spaceNum; $i++)
	{
		$spaceString = $spaceString . " ";
	}

	$showString = $spaceString . $string;

	return $showString;
}

function RightBigString($string)
{
	$stringChineseCharNum = 0;
	$stringEnglishCharNum = 0;

	GetStringNum($string, $stringChineseCharNum, $stringEnglishCharNum);

	$stringShowLength = $stringChineseCharNum*4 + $stringEnglishCharNum*2;

	if ($stringShowLength > 32)
	{
		//如果超过一行，那么就不用右对齐
		return $string;
	}

	//计算左边需要的空格数量
	$spaceNum = 32 - $stringShowLength;
	$spaceString = "";
	for ($i = 0; $i < $spaceNum; $i++)
	{
		$spaceString = $spaceString . " ";
	}

	$showString = $spaceString . $string;

	return $showString;
}

function HandleFoodName($string)
{
	$resultFoodName = $string;

	//如果少于16个显示长度，就不换行
	$showLength = GetShowLength($string);
	$lineShowLength = $showLength%32;

	if ($lineShowLength < 15)
	{
		$spaceNum = 15 - $lineShowLength;
	}
	else
	{
		$spaceNum = 32 - $lineShowLength + 15;
	}

	for ($i = 0; $i < $spaceNum; $i++)
	{
		$resultFoodName = $resultFoodName . " ";
	}

	return $resultFoodName;
}

function HandleNum($string)
{
	$resultFoodName = $string;

	//如果少于16个显示长度，就不换行
	$showLength = GetShowLength($string);

	if ($showLength <= 5)
	{
		$spaceBeforeNum = floor((5 - $showLength)/2);
		$spaceAfterNum = 5 - $spaceBeforeNum - $showLength;

		for ($i = 0; $i < $spaceBeforeNum; $i++)
		{
			$resultFoodName = " " . $resultFoodName;
		}

		for ($i = 0; $i < $spaceAfterNum; $i++)
		{
			$resultFoodName = $resultFoodName . " ";
		}
	}
	else
	{
		//如果显示长度大于5，直接在后面加一个空格
		$resultFoodName = $resultFoodName . " ";
	}

	return $resultFoodName;
}

?>