protected SimpleImageMetaData createScaledImage(MasterImageMetaData mimd, double scaleFactor)
throws Exception {
ImageMetaData imageData = mimd.getMetaData();
SimpleImageMetaData output = new SimpleImageMetaData();
long height = Math.round(imageData.getHeight() / scaleFactor);
long width = Math.round(imageData.getWidth() / scaleFactor);
Dimension dim = new Dimension(new Long(width).intValue(), new Long(height).intValue());
resizeSimpleImage(output, mimd.getImageKey(), null, dim);
return output;
}
protected void setupDisplayImage(MasterImageMetaData mimd, UserSessionData usd) throws Exception {
log.debug(
"height is "
+ mimd.getMetaData().getHeight()
+ " width is "
+ mimd.getMetaData().getWidth());
double scalefactor =
computeScaleFactor(mimd.getMetaData().getHeight(), mimd.getMetaData().getWidth());
log.debug("Scale Factor is " + scalefactor);
usd.setScaleFactor(scalefactor);
SimpleImageMetaData displayImage;
if (scalefactor > 1.0) { // the image must be resized.
displayImage = createScaledImage(mimd, scalefactor);
log.debug("Display image is " + displayImage);
} else {
displayImage = new SimpleImageMetaData(mimd);
}
usd.setDisplayImage(displayImage);
}
protected Map<String, String> buildDisplayImage(UserSessionData usd) {
MasterImageMetaData mimd = usd.getMimd();
Map<String, String> displayImage = new HashMap<String, String>();
displayImage.put("title", mimd.getDisplayTitle());
displayImage.put("alt", mimd.getAlt());
String url;
if (usd.getDisplayImage() != null) {
displayImage.put("height", String.valueOf(usd.getDisplayImage().getHeight()));
displayImage.put("width", String.valueOf(usd.getDisplayImage().getWidth()));
url = this.urlBuilder.buildUrl(usd.getDisplayImage().getImageKey());
displayImage.put("url", url);
} else {
displayImage.put("height", String.valueOf(mimd.getMetaData().getHeight()));
displayImage.put("width", String.valueOf(mimd.getMetaData().getWidth()));
url = this.urlBuilder.buildUrl(mimd.getImageKey());
displayImage.put("url", url);
}
return displayImage;
}
protected Map<String, String> buildMasterImageDisplay(MasterImageMetaData mimd) {
ImageMetaData md = mimd.getMetaData();
Map<String, String> masterData = new HashMap<String, String>();
masterData.put("filename", md.getFilename());
masterData.put("ext", md.getExt());
masterData.put("mimetype", md.getMimeType());
masterData.put("size", String.valueOf(md.getSize()));
masterData.put("height", String.valueOf(md.getHeight()));
masterData.put("width", String.valueOf(md.getWidth()));
String url = this.urlBuilder.buildUrl(mimd.getImageKey());
masterData.put("url", url);
return masterData;
}
@Override
protected void postProcessPage(
HttpServletRequest request, Object command, Errors errors, int page) throws Exception {
UserSessionData usd = getUserSessionData(request);
MasterImageMetaData mimd = usd.getMimd();
if (page == 0) {
log.debug("postProcessPage: processing main page");
if (mimd.getMetaData().getSize() == 0L) {
log.info("no image uploaded");
errors.reject("master.image.missing");
}
if (mimd.getSizedImages().isEmpty()) {
log.info("no image sizes selected");
errors.reject("no.image.sizes.selected");
}
}
}
@Override
protected void onBind(HttpServletRequest request, Object command, BindException errors)
throws Exception {
log.debug("onBind: doing onBind...");
UserSessionData usd = getUserSessionData(request);
MasterImageMetaData mimd = usd.getMimd();
ImageBean ib = (ImageBean) command;
if (mimd == null) {
log.error("onBind: mimd attribute is not set in session.");
} else {
int currentPage = getCurrentPage(request);
if (request instanceof MultipartHttpServletRequest) {
MultipartHttpServletRequest mRequest = (MultipartHttpServletRequest) request;
MultipartFile mpFile = mRequest.getFile(FILE_UPLOAD_FIELD);
String action = request.getParameter("action");
log.debug("onBind: the action is: " + action);
if (mpFile.isEmpty() && StringUtils.isBlank(action)) {
log.debug("onBind: nothing has been uploaded - not storing image...");
} else if (mpFile.isEmpty() && action.equals("cleared")) {
log.debug(
"onBind: nothing has been uploaded and something has been cleared - clearing stored image if any...");
mimd.setImageKey(null);
mimd.setMetaData(null);
mimd.clearSizedImages();
usd.setDirty(true); // clearing the file always sets dirty.
} else {
log.debug(
"onBind: the original name of the file being uploaded is: "
+ mpFile.getOriginalFilename());
storeImage(mimd, mpFile);
setupDisplayImage(mimd, usd);
usd.setDirty(true); // uploaded files are always dirty.
}
mimd.setAlt(ib.getAlt());
mimd.setDescription(ib.getDescription());
mimd.setDisplayTitle(ib.getDisplayTitle());
mimd.setSysTitle(ib.getSysTitle());
}
// set the dirty flag if the form is dirty or the session is already dirty.
usd.setDirty(usd.isDirty() || ib.isDirty());
log.debug("onBind: The dirty flag is " + usd.isDirty());
log.debug(
"onBind: There are "
+ getPageCount(request, command)
+ " pages. -- currently on page "
+ getCurrentPage(request));
log.debug("onBind: current Page is " + currentPage);
// Figure out how many pages you will need to go through
if (currentPage == 0) {
String contentId = request.getParameter("sys_contentid");
String folderId = request.getParameter("sys_folderid");
String sessionId = RxRequestUtils.getSessionId(request);
String username = request.getRemoteUser();
if (StringUtils.isBlank(contentId)
&& StringUtils.isNotBlank(folderId)
&& StringUtils.isNotBlank(ib.getSysTitle())) {
boolean bval =
imagePersistenceManager.validateSystemTitleUnique(
ib.getSysTitle(), folderId, sessionId, username);
if (!bval) {
log.info("system title is not unique in folder " + ib.getSysTitle());
errors.rejectValue(
"sysTitle",
"title.not.unique",
new String[] {ib.getSysTitle()},
"System Title is not unique in the specified folder.");
}
}
log.debug("onBind: ib.getSizedImages(): " + ib.getSizedImages());
setPagesDynamically(request, ib.getSizedImages());
setupSizedImages(request, ib.getSizedImages(), mimd);
}
if (currentPage > 0 && currentPage < getPageCount(request, command) - 1) {
log.debug("onBind: dealing with binding data for page " + currentPage);
SizedImageMetaData simd = getCurrentSizedImage(mimd, currentPage - 1);
ImageSizeDefinition isd = simd.getSizeDefinition();
if (ib.getX() == 0
&& ib.getY() == 0
&& ib.getWidth() == 0
&& ib.getHeight() == 0) { // ignore this request, it was likely caused by a refresh...
log.debug("No crop box data present, skipping this request");
return;
}
// can't do this on the client side because MSIE cannot detect change events.
if (!usd.isDirty()) { // not already dirty, so we must check to see if the box has changed
if (simd.getX() != ib.getX()
|| simd.getY() != ib.getY()
|| simd.getHeight() != ib.getHeight()
|| simd.getWidth() != ib.getWidth()) {
usd.setDirty(true);
}
}
Rectangle cropBox = new Rectangle(ib.getX(), ib.getY(), ib.getWidth(), ib.getHeight());
double scaleFactor = usd.getScaleFactor();
if (scaleFactor > 1.0) {
log.debug("scaling crop box " + scaleFactor);
ImageMetaData imd = mimd.getMetaData();
cropBox =
scaledRectangle(cropBox, scaleFactor, new Dimension(imd.getWidth(), imd.getHeight()));
log.debug("new crop box is " + cropBox);
}
Dimension size = new Dimension(isd.getWidth(), isd.getHeight());
resizeSimpleImage(simd, mimd.getImageKey(), cropBox, size);
simd.setX(ib.getX());
simd.setY(ib.getY());
simd.setHeight(ib.getHeight());
simd.setWidth(ib.getWidth());
Boolean constraint = ib.isConstraint();
log.debug("constraint from ib: " + constraint);
log.debug("request constraint: " + request.getParameter("constraint"));
if (constraint == null) simd.setConstraint(false);
else if (constraint.booleanValue()) simd.setConstraint(constraint);
} else log.debug("onBind: page is not > 0 or < " + (getPageCount(request, command) - 1));
}
log.debug("onBind: END");
}