private static List <PageDataDescriptionEntity> GetAnnotatedPagesForPrint(string password, string documentGuid)
{
AnnotatedDocumentEntity description = new AnnotatedDocumentEntity();
try
{
using (FileStream outputStream = File.OpenRead(documentGuid))
{
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(outputStream, GetLoadOptions(password)))
{
IDocumentInfo info = annotator.Document.GetDocumentInfo();
List <string> pagesContent = GetAllPagesContent(annotator, info);
for (int i = 0; i < info.PagesInfo.Count; i++)
{
PageDataDescriptionEntity page = new PageDataDescriptionEntity();
if (pagesContent.Count > 0)
{
page.SetData(pagesContent[i]);
}
description.pages.Add(page);
}
}
}
return(description.pages);
}
catch (FileNotFoundException ex)
{
throw ex;
}
}
static MemoryStream RenderPageToMemoryStream(GroupDocs.Annotation.Annotator annotator, int pageNumberToRender)
{
MemoryStream result = new MemoryStream();
PreviewOptions previewOptions = new PreviewOptions(pageNumber => result)
{
PreviewFormat = PreviewFormats.PNG,
PageNumbers = new[] { pageNumberToRender },
RenderComments = false
};
annotator.Document.GeneratePreview(previewOptions);
return(result);
}
public HttpResponseMessage LoadDocumentPage(AnnotationPostedDataEntity loadDocumentPageRequest)
{
string password = "";
try
{
// get/set parameters
string documentGuid = loadDocumentPageRequest.guid;
int pageNumber = loadDocumentPageRequest.page;
password = loadDocumentPageRequest.password;
PageDataDescriptionEntity loadedPage = new PageDataDescriptionEntity();
// get page image
byte[] bytes;
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(documentGuid, GetLoadOptions(password)))
{
using (var memoryStream = RenderPageToMemoryStream(annotator, pageNumber))
{
bytes = memoryStream.ToArray();
}
IDocumentInfo info = annotator.Document.GetDocumentInfo();
AnnotationBase[] annotations = annotator.Get().ToArray();
string documentType = getDocumentType(info);
if (annotations != null && annotations.Length > 0)
{
loadedPage.SetAnnotations(AnnotationMapper.MapForPage(annotations, pageNumber, info.PagesInfo[pageNumber - 1], documentType));
}
string encodedImage = Convert.ToBase64String(bytes);
loadedPage.SetData(encodedImage);
loadedPage.height = info.PagesInfo[pageNumber - 1].Height;
loadedPage.width = info.PagesInfo[pageNumber - 1].Width;
loadedPage.number = pageNumber;
}
// return loaded page object
return(Request.CreateResponse(HttpStatusCode.OK, loadedPage));
}
catch (Exception ex)
{
// set exception message
return(Request.CreateResponse(HttpStatusCode.InternalServerError, new Resources().GenerateException(ex, password)));
}
}
public AnnotatedDocumentEntity LoadDocument(AnnotationPostedDataEntity loadDocumentRequest, bool loadAllPages)
{
string password = loadDocumentRequest.password;
AnnotatedDocumentEntity description = new AnnotatedDocumentEntity();
string documentGuid = loadDocumentRequest.guid;
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(documentGuid, GetLoadOptions(password)))
{
IDocumentInfo info = annotator.Document.GetDocumentInfo();
AnnotationBase[] annotations = annotator.Get().ToArray();
description.guid = loadDocumentRequest.guid;
string documentType = getDocumentType(info);
description.supportedAnnotations = new SupportedAnnotations().GetSupportedAnnotations(documentType);
List <string> pagesContent = new List <string>();
if (loadAllPages)
{
pagesContent = GetAllPagesContent(annotator, info);
}
for (int i = 0; i < info.PagesInfo.Count; i++)
{
PageDataDescriptionEntity page = new PageDataDescriptionEntity
{
number = i + 1,
height = info.PagesInfo[i].Height,
width = info.PagesInfo[i].Width,
};
if (annotations != null && annotations.Length > 0)
{
page.SetAnnotations(AnnotationMapper.MapForPage(annotations, i + 1, info.PagesInfo[i], documentType));
}
if (pagesContent.Count > 0)
{
page.SetData(pagesContent[i]);
}
description.pages.Add(page);
}
}
description.guid = documentGuid;
// return document description
return(description);
}
private static List <string> GetAllPagesContent(GroupDocs.Annotation.Annotator annotator, IDocumentInfo pages)
{
List <string> allPages = new List <string>();
//get page HTML
for (int i = 0; i < pages.PageCount; i++)
{
byte[] bytes;
using (var memoryStream = RenderPageToMemoryStream(annotator, i + 1))
{
bytes = memoryStream.ToArray();
}
string encodedImage = Convert.ToBase64String(bytes);
allPages.Add(encodedImage);
}
return(allPages);
}
public static void RemoveAnnotations(string documentGuid, string password)
{
string tempPath = GetTempPath(documentGuid);
try
{
using (Stream inputStream = File.Open(documentGuid, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite))
{
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(inputStream, GetLoadOptions(password)))
{
annotator.Save(tempPath, new SaveOptions {
AnnotationTypes = AnnotationType.None
});
}
}
File.Delete(documentGuid);
File.Move(tempPath, documentGuid);
}
catch (Exception ex)
{
throw ex;
}
}
public HttpResponseMessage Annotate(AnnotationPostedDataEntity annotateDocumentRequest)
{
AnnotatedDocumentEntity annotatedDocument = new AnnotatedDocumentEntity();
try
{
// get/set parameters
string documentGuid = annotateDocumentRequest.guid;
string password = annotateDocumentRequest.password;
string documentType = SupportedImageFormats.Contains(Path.GetExtension(annotateDocumentRequest.guid).ToLowerInvariant()) ? "image" : annotateDocumentRequest.documentType;
string tempPath = GetTempPath(documentGuid);
AnnotationDataEntity[] annotationsData = annotateDocumentRequest.annotationsData;
// initiate list of annotations to add
List <AnnotationBase> annotations = new List <AnnotationBase>();
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(documentGuid, GetLoadOptions(password)))
{
IDocumentInfo info = annotator.Document.GetDocumentInfo();
for (int i = 0; i < annotationsData.Length; i++)
{
AnnotationDataEntity annotationData = annotationsData[i];
PageInfo pageInfo = info.PagesInfo[annotationsData[i].pageNumber - 1];
// add annotation, if current annotation type isn't supported by the current document type it will be ignored
try
{
BaseAnnotator baseAnnotator = AnnotatorFactory.createAnnotator(annotationData, pageInfo);
if (baseAnnotator.IsSupported(documentType))
{
annotations.Add(baseAnnotator.GetAnnotationBase(documentType));
}
}
catch (Exception ex)
{
throw new AnnotatorException(ex.Message, ex);
}
}
}
// Add annotation to the document
RemoveAnnotations(documentGuid, password);
// check if annotations array contains at least one annotation to add
if (annotations.Count != 0)
{
using (GroupDocs.Annotation.Annotator annotator = new GroupDocs.Annotation.Annotator(documentGuid, GetLoadOptions(password)))
{
foreach (var annotation in annotations)
{
annotator.Add(annotation);
}
annotator.Save(tempPath);
}
if (File.Exists(documentGuid))
{
File.Delete(documentGuid);
}
File.Move(tempPath, documentGuid);
}
annotatedDocument = new AnnotatedDocumentEntity();
annotatedDocument.guid = documentGuid;
if (annotateDocumentRequest.print)
{
annotatedDocument.pages = GetAnnotatedPagesForPrint(password, documentGuid);
File.Move(documentGuid, annotateDocumentRequest.guid);
}
}
catch (Exception ex)
{
// set exception message
return(Request.CreateResponse(HttpStatusCode.InternalServerError, new Resources().GenerateException(ex)));
}
return(Request.CreateResponse(HttpStatusCode.OK, annotatedDocument));
}