Mega Code Archive
Get fixing preview image
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/**
* COPYRIGHT. Harry Wu 2010. ALL RIGHTS RESERVED.
* Project: EasyPhoto
* Author: Harry Wu <harrywu304@gmail.com>
* Created On: Jun 28, 2008 5:12:21 PM
*
*/
//package org.shaitu.easyphoto.util;
import java.awt.Image;
import java.awt.image.BufferedImage;
import java.awt.image.ColorModel;
import java.awt.image.IndexColorModel;
import java.awt.image.WritableRaster;
import java.io.File;
import java.util.Iterator;
import java.util.List;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageTypeSpecifier;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.plugins.jpeg.JPEGImageWriteParam;
import javax.imageio.stream.ImageOutputStream;
import javax.swing.ImageIcon;
/**
* userful methods about image
* @author harry
*/
public class ImageUtil {
public final static String JPEG = "jpeg";
public final static String JPG = "jpg";
public final static String BMP = "bmp";
public final static String PNG = "png";
public final static String GIF = "gif";
public final static String TIFF = "tiff";
public final static String TIF = "tif";
/**
* get fixing preview image rsize <br/>
* Exif not apply: calculate by formula: iHeight/iWidth*rsize < (lbHeight-10)
* Exif apply: calculate by formula: iHeight/iWidth*rsize < (lbHeight-80-10)
* @param imageFile
* @param lbWidth
* @param lbHeight
* @param applyExif
* @return
*/
public static int getFixedPreviewSize(File imageFile, int lbHeight, boolean applyExif){
int rsize = 0;
ImageIcon image = new ImageIcon(imageFile.getPath());
int iHeight = image.getIconHeight();
int iWidth = image.getIconWidth();
image = null;
if(iHeight > iWidth){
if(!applyExif){
rsize = lbHeight-10;
} else {
rsize = lbHeight-90;
}
} else {
if(!applyExif){
rsize = (lbHeight-10)*iWidth/iHeight;
} else {
rsize = (lbHeight-90)*iWidth/iHeight;
}
}
return rsize;
}
}
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