public void proce(String oldFile, int width, int height, float quality, String smallIcon) {
String newImage = null; try {
Image srcFile = ImageIO.read(new File(oldFile));
double rate1 = ((double) srcFile.getWidth(null)) / (double) width; double rate2 = ((double) srcFile.getHeight(null)) / (double) height; double rate = rate1 > rate2 ? rate1 : rate2; int new_w = (int) (((double) srcFile.getWidth(null)) / rate); int new_h = (int) (((double) srcFile.getHeight(null)) / rate);
BufferedImage tag = new BufferedImage(new_w, new_h, BufferedImage.TYPE_INT_RGB); tag.getGraphics().drawImage(srcFile, 0, 0, new_w, new_h, null); String filePrex = oldFile.substring(0, oldFile.lastIndexOf('.'));
newImage = filePrex + smallIcon + oldFile.substring(filePrex.length());
FileOutputStream out = new FileOutputStream(newImage);
JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(out); JPEGEncodeParam jep = JPEGCodec.getDefaultJPEGEncodeParam(tag);
jep.setQuality(quality, true); encoder.encode(tag, jep);
out.close(); srcFile.flush(); srcFile = null;
} catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }
