/**
* toBufferedImage
*
* <p>Transform from an Image instance to a BufferedImage instance
*
* @param image Source image
* @return BufferedImage
*/
public static BufferedImage toBufferedImage(Image image) {
return ImageTransform.toBufferedImage(image, BufferedImage.TYPE_INT_ARGB_PRE);
}
/**
* scaleImage
*
* <p>scale original image related to the ImageProperties.xml dimensions
*
* @param bufImg Buffered image to scale
* @param imgHeight Original image height
* @param imgwidth Original image width
* @param dimensionMap Image dimensions by size type
* @param sizeType Size type to scale
* @return New scaled buffered image
*/
public static Map<String, Object> scaleImage(
BufferedImage bufImg,
double imgHeight,
double imgWidth,
Map<String, Map<String, String>> dimensionMap,
String sizeType,
Locale locale) {
/* VARIABLES */
BufferedImage bufNewImg;
double defaultHeight, defaultWidth, scaleFactor;
Map<String, Object> result = FastMap.newInstance();
/* DIMENSIONS from ImageProperties */
defaultHeight = Double.parseDouble(dimensionMap.get(sizeType).get("height").toString());
defaultWidth = Double.parseDouble(dimensionMap.get(sizeType).get("width").toString());
if (defaultHeight == 0.0 || defaultWidth == 0.0) {
String errMsg =
UtilProperties.getMessage(
resource, "ImageTransform.one_default_dimension_is_null", locale)
+ " : defaultHeight = "
+ defaultHeight
+ " ; defaultWidth = "
+ defaultWidth;
Debug.logError(errMsg, module);
result.put("errorMessage", errMsg);
return result;
}
/* SCALE FACTOR */
// find the right Scale Factor related to the Image Dimensions
if (imgHeight > imgWidth) {
scaleFactor = defaultHeight / imgHeight;
if (scaleFactor == 0.0) {
String errMsg =
UtilProperties.getMessage(
resource, "ImageTransform.height_scale_factor_is_null", locale)
+ " (defaultHeight = "
+ defaultHeight
+ "; imgHeight = "
+ imgHeight;
Debug.logError(errMsg, module);
result.put("errorMessage", errMsg);
return result;
}
// get scaleFactor from the smallest width
if (defaultWidth < (imgWidth * scaleFactor)) {
scaleFactor = defaultWidth / imgWidth;
}
} else {
scaleFactor = defaultWidth / imgWidth;
if (scaleFactor == 0.0) {
String errMsg =
UtilProperties.getMessage(resource, "ImageTransform.width_scale_factor_is_null", locale)
+ " (defaultWidth = "
+ defaultWidth
+ "; imgWidth = "
+ imgWidth;
Debug.logError(errMsg, module);
result.put("errorMessage", errMsg);
return result;
}
// get scaleFactor from the smallest height
if (defaultHeight < (imgHeight * scaleFactor)) {
scaleFactor = defaultHeight / imgHeight;
}
}
if (scaleFactor == 0.0) {
String errMsg =
UtilProperties.getMessage(resource, "ImageTransform.final_scale_factor_is_null", locale)
+ " = "
+ scaleFactor;
Debug.logError(errMsg, module);
result.put("errorMessage", errMsg);
return result;
}
int bufImgType;
if (BufferedImage.TYPE_CUSTOM == bufImg.getType()) {
String errMsg =
UtilProperties.getMessage(resource, "ImageTransform.unknown_buffered_image_type", locale);
Debug.logWarning(errMsg, module);
// apply a type for image majority
bufImgType = BufferedImage.TYPE_INT_ARGB_PRE;
} else {
bufImgType = bufImg.getType();
}
// scale original image with new size
Image newImg =
bufImg.getScaledInstance(
(int) (imgWidth * scaleFactor), (int) (imgHeight * scaleFactor), Image.SCALE_SMOOTH);
bufNewImg = ImageTransform.toBufferedImage(newImg, bufImgType);
result.put("responseMessage", "success");
result.put("bufferedImage", bufNewImg);
result.put("scaleFactor", scaleFactor);
return result;
}