/** crops image to square */
public void cropImageToSquare() {
int width = image.getWidth();
int height = image.getHeight();
// possibly crop
if (width > height) image = Scalr.crop(image, (width - height) / 2, 0, height, height);
else if (width < height) image = Scalr.crop(image, 0, (height - width) / 2, width, width);
}
public static void crop(File file, int x, int y, int width, int height)
throws FileOperationException {
BufferedImage image;
try {
image = ImageIO.read(file);
image = Scalr.crop(image, x, y, width, height);
saveToJPG(image, file);
image.flush();
} catch (IOException | IllegalArgumentException e) {
logger.error(e.getMessage(), e);
throw new FileOperationException("Cropping failed");
}
}
public void createThumbnail(MultipartFile multipartFile, String fileName, int thumbnailSize)
throws DdException, IOException {
boolean f = false;
for (String mime : mimeTypeAllow) {
if (mime.equalsIgnoreCase(multipartFile.getContentType())) {
f = true;
break;
}
}
if (!f) {
throw new DdException(
DdException.VALIDATION_EXCEPTION,
UploadUtil.FILE_TYPE_NOT_ALLOW_CODE,
UploadUtil.FILE_TYPE_NOT_ALLOW);
}
String fileNameTemp = "", fileExt = "";
fileNameTemp = multipartFile.getOriginalFilename();
if (fileNameTemp.indexOf(".") > -1) {
fileExt = fileNameTemp.substring(fileNameTemp.lastIndexOf("."), fileNameTemp.length());
}
fileExt = fileExt.toLowerCase();
// Check for valid file type upload file
if (fileTypeAllow.indexOf(fileExt) == -1) {
throw new DdException(
DdException.VALIDATION_EXCEPTION,
UploadUtil.FILE_TYPE_NOT_ALLOW_CODE,
UploadUtil.FILE_TYPE_NOT_ALLOW);
}
// Check for limit upload file
if (multipartFile.getSize() <= 0 || multipartFile.getSize() > fileSizeLimit) {
throw new DdException(
DdException.VALIDATION_EXCEPTION,
UploadUtil.FILE_SIZE_LIMIT_CODE,
UploadUtil.FILE_SIZE_LIMIT);
}
BufferedImage img = ImageIO.read(multipartFile.getInputStream());
int cropMargin = (int) Math.abs(Math.round(((img.getWidth() - img.getHeight()) / 2.0)));
// determine the crop coordinates
int x1 = 0;
int y1 = 0;
int width = img.getWidth();
int height = img.getHeight();
if (img.getWidth() > img.getHeight()) {
x1 = cropMargin;
width = height;
} else {
y1 = cropMargin;
height = width;
}
BufferedImage thumbnail = Scalr.crop(img, x1, y1, width, height);
thumbnail =
Scalr.resize(
thumbnail,
Scalr.Method.ULTRA_QUALITY,
Scalr.Mode.AUTOMATIC,
thumbnailSize,
thumbnailSize,
Scalr.OP_ANTIALIAS);
ImageIO.write(thumbnail, fileExt.substring(1), new File(path + fileName));
}