package?watermark;

import?java.awt.Image;
import?java.awt.Toolkit;
import?java.awt.image.MemoryImageSource;
import?java.io.FileInputStream;
import?java.io.IOException;
/**
?*?處理bmp后綴的圖片?
?*?@author?代碼來自網上
?*
?*/
public?class?BMPLoader

{

	//?build?an?int?from?a?byte?array?-?convert?little?to?big?endian
	public?static?int?constructInt（byte[]?in?int?offset）?{

		int?ret?=?（（int）?in[offset?+?3]?&?0xff）;

		ret?=?（ret?<
		ret?=?（ret?<
		ret?=?（ret?<
		return?（ret）;

	}

	//?build?an?int?from?a?byte?array?-?convert?little?to?big?endian
	//?set?high?order?bytes?to?0xfff
	public?static?int?constructInt3（byte[]?in?int?offset）?{

		int?ret?=?0xff;

		ret?=?（ret?<
		ret?=?（ret?<
		ret?=?（ret?<
		return?（ret）;

	}

	//?build?an?int?from?a?byte?array?-?convert?little?to?big?endian
	public?static?long?constructLong（byte[]?in?int?offset）?{

		long?ret?=?（（long）?in[offset?+?7]?&?0xff）;

		ret?|=?（ret?<
		ret?|=?（ret?<
		ret?|=?（ret?<
		ret?|=?（ret?<
		ret?|=?（ret?<
		ret?|=?（ret?<
		ret?|=?（ret?<
		return?（ret）;

	}

	//?build?an?double?from?a?byte?array?-?convert?little?to?big?endian
	public?static?double?constructDouble（byte[]?in?int?offset）?{

		long?ret?=?constructLong（in?offset）;

		return?（Double.longBitsToDouble（ret））;

	}

	//?build?an?short?from?a?byte?array?-?convert?little?to?big?endian
	public?static?short?constructShort（byte[]?in?int?offset）?{

		short?ret?=?（short）?（（short）?in[offset?+?1]?&?0xff）;

		ret?=?（short）?（（ret?<
		return?（ret）;

	}

	//?internal?class?representing?a?bitmap?header?structure
	//?with?code?to?read?it?from?a?file
	static?class?BitmapHeader?{

		public?int?nsize;

		public?int?nbisize;

		public?int?nwidth;

		public?int?nheight;

		public?int?nplanes;

		public?int?nbitcount;

		public?int?ncompression;

		public?int?nsizeimage;

		public?int?nxpm;

		public?int?nypm;

		public?int?nclrused;

		public?int?nclrimp;

		//?read?in?the?bitmap?header
		public?void?read（FileInputStream?fs）?throws?IOException

		{

			final?int?bflen?=?14;?//?14?byte?BITMAPFILEHEADER

			byte?bf[]?=?new?byte[bflen];

			fs.read（bf?0?bflen）;

			final?int?bilen?=?40;?//?40-byte?BITMAPINFOHEADER

			byte?bi[]?=?new?byte[bilen];

			fs.read（bi?0?bilen）;

			//?Interperet?data.
			nsize?=?constructInt（bf?2）;

			//?System.out.println（“File?type?is?:“+（char）bf[0]+（c

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

?????文件????????232??2012-04-30?23:55??watermark\.classpath

?????文件????????385??2012-04-30?23:55??watermark\.project

?????文件???????1324??2012-04-30?23:55??watermark\bin\watermark\BMPLoader$BitmapHeader.class

?????文件???????4722??2012-04-30?23:55??watermark\bin\watermark\BMPLoader.class

?????文件????????965??2012-04-30?23:55??watermark\bin\watermark\ButtonAction$1.class

?????文件???????8004??2012-04-30?23:55??watermark\bin\watermark\ButtonAction.class

?????文件???????1713??2012-04-30?23:55??watermark\bin\watermark\CommandButton$Buttonstyle.class

?????文件????????734??2012-04-30?23:55??watermark\bin\watermark\CommandButton.class

?????文件???????3700??2012-04-30?23:55??watermark\bin\watermark\Common.class

?????文件????????919??2012-04-30?23:55??watermark\bin\watermark\FileBean.class

?????文件???????5202??2012-04-30?23:55??watermark\bin\watermark\ImageDropTargetListener.class

?????文件???????6910??2012-04-30?23:55??watermark\bin\watermark\ImageTool.class

?????文件????????458??2012-04-30?23:55??watermark\bin\watermark\Main.class

?????文件????????890??2012-04-30?23:59??watermark\bin\watermark\Mainframe$1.class

?????文件???????1706??2012-04-30?23:59??watermark\bin\watermark\Mainframe$UIClassName.class

?????文件???????9835??2012-04-30?23:59??watermark\bin\watermark\Mainframe.class

?????文件???????1033??2012-04-30?23:55??watermark\bin\watermark\PreviewImage$1.class

?????文件????????785??2012-04-30?23:55??watermark\bin\watermark\PreviewImage$2.class

?????文件???????1891??2012-04-30?23:55??watermark\bin\watermark\PreviewImage$DragPicListener.class

?????文件???????1568??2012-04-30?23:55??watermark\bin\watermark\PreviewImage.class

?????文件??????10299??2012-04-30?23:55??watermark\src\watermark\BMPLoader.java

?????文件???????6935??2012-04-30?23:55??watermark\src\watermark\ButtonAction.java

?????文件????????791??2012-04-30?23:55??watermark\src\watermark\CommandButton.java

?????文件???????2895??2012-04-30?23:55??watermark\src\watermark\Common.java

?????文件????????583??2012-04-30?23:55??watermark\src\watermark\FileBean.java

?????文件???????3711??2012-04-30?23:55??watermark\src\watermark\ImageDropTargetListener.java

?????文件???????7333??2012-04-30?23:55??watermark\src\watermark\ImageTool.java

?????文件????????179??2012-04-30?23:55??watermark\src\watermark\Main.java

?????文件??????10862??2012-04-30?23:59??watermark\src\watermark\Mainframe.java

?????文件???????2374??2012-04-30?23:55??watermark\src\watermark\PreviewImage.java

............此處省略9個文件信息