package?com;

import?java.awt.Graphics2D;
import?java.awt.RenderingHints;
import?java.awt.geom.AffineTransform;
import?java.awt.image.BufferedImage;
import?java.awt.image.ColorModel;
import?java.awt.image.WritableRaster;
import?java.io.IOException;
import?java.util.Iterator;
import?javax.imageio.ImageIO;
import?javax.imageio.ImageReader;
import?javax.imageio.stream.ImageInputStream;

/**?
?*?author??jason
?*?date	2010-8-20
?*/
public?class?FileUtility?{
	
	/**
	?*?圖片文件類型
	?*?@param?o
	?*?@return
	?*/
	public?static?String?getFormatName（object?o）?{
????????try?{
????????????ImageInputStream?iis?=?ImageIO.createImageInputStream（o）;
????
????????????Iterator?iter?=?ImageIO.getImageReaders（iis）;
????????????if?（!iter.hasNext（））?{
????????????????return?null;
????????????}
????
????????????ImageReader?reader?=?iter.next（）;
????
????????????iis.close（）;
????
????????????return?reader.getFormatName（）;
????????}?catch?（IOException?e）?{
????????????e.printStackTrace（）;
????????}
????????return?null;
????}
	
	/**
	?*?縮放圖片大小
	?*?@param?srcBufImage
	?*?@param?width
	?*?@param?height
	?*?@return
	?*/
	public?static?BufferedImage?rize（BufferedImage?srcBufImage?int?width
			int?height）?{

		BufferedImage?bufTarget?=?null;

		double?sx?=?（double）?width?/?srcBufImage.getWidth（）;
		double?sy?=?（double）?height?/?srcBufImage.getHeight（）;

		int?type?=?srcBufImage.getType（）;
		if?（type?==?BufferedImage.TYPE_CUSTOM）?{
			ColorModel?cm?=?srcBufImage.getColorModel（）;
			WritableRaster?raster?=?cm.createCompatibleWritableRaster（width
					height）;
			boolean?alphaPremultiplied?=?cm.isAlphaPremultiplied（）;
			bufTarget?=?new?BufferedImage（cm?raster?alphaPremultiplied?null）;
		}?else
?			bufTarget?=?new?BufferedImage（width?height?type）;

		Graphics2D?g?=?bufTarget.createGraphics（）;
		g.setRenderingHint（RenderingHints.KEY_RENDERING
				RenderingHints.VALUE_RENDER_QUALITY）;
		g.drawRenderedImage（srcBufImage?AffineTransform.getScaleInstance（sx
				sy））;
		g.dispose（）;
		return?bufTarget;
	}
	
	
	/**
	?*?讀取文件名字
	?*?@param?filePath
	?*?@return
	?*/
	public?static?String?getFileName（String?filePath）{
		String?flot=“\\“;
		String?flotTwo=“/“;
		if（filePath!=null&&!filePath.trim（）.equals（““）&&filePath.lastIndexOf（flot）!=-1）{
			String?name=filePath.substring（filePath.lastIndexOf（flot）+1filePath.length（））;
			return?name;
		}else?if（filePath!=null&&!filePath.trim（）.equals（““）&&filePath.lastIndexOf（flotTwo）!=-1）{
			String?name=filePath.substring（filePath.lastIndexOf（flotTwo）+1filePath.length（））;
			return?name;
		}
		return?null;
	}
	
????/**
?????*?去掉字符串右邊的空格
?????*?@param?str?要處理的字符串
?????*?@return?處理后的字符串
?????*/
?????public?static?String?rightTrim（String?str）?{
???????if?（str?==?null）?{
???????????return?““;
???????}
???????int?length?=?str.length（）;
???????for?（int?i?=?length?-?1;?i?>=?0;?i--）?{
???????????if?（str.charAt（i）?!=?0x20）?{
????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????????354??2013-05-27?15:09??TwoCode\.classpath

?????文件????????383??2013-05-27?15:08??TwoCode\.project

?????文件????????629??2013-05-27?15:08??TwoCode\.settings\org.eclipse.jdt.core.prefs

?????文件???????4106??2013-05-27?15:10??TwoCode\bin\com\FileUtility.class

?????文件???????6345??2013-05-27?15:10??TwoCode\bin\com\TwoDimensionCode.class

?????文件????????808??2013-05-27?15:09??TwoCode\bin\com\TwoDimensionCodeImage.class

?????文件????1099539??2013-05-23?17:40??TwoCode\lib\QRCode.jar

?????文件???????3674??2013-05-27?15:10??TwoCode\src\com\FileUtility.java

?????文件???????7329??2013-05-27?15:10??TwoCode\src\com\TwoDimensionCode.java

?????文件????????630??2013-05-27?15:08??TwoCode\src\com\TwoDimensionCodeImage.java

?????目錄??????????0??2013-05-27?15:09??TwoCode\bin\com

?????目錄??????????0??2013-05-27?15:08??TwoCode\src\com

?????目錄??????????0??2013-05-27?15:08??TwoCode\.settings

?????目錄??????????0??2013-05-27?15:09??TwoCode\bin

?????目錄??????????0??2013-05-27?15:09??TwoCode\lib

?????目錄??????????0??2013-05-27?15:08??TwoCode\src

?????目錄??????????0??2013-05-27?15:09??TwoCode

-----------?---------??----------?-----??----

??????????????1123797????????????????????17