private void SearchInDatabase(Dictionary<Descriptor, object> query, Descriptor desc)
{
if (query != null)
{
try
{
PhotosEntities photoEntities = new PhotosEntities();
foreach (var photoId in _PhotoIdList)
{
bool comply = false;
Photo photo = photoEntities.PhotoSet.Single(p => p.PhotoID == photoId);
Gallery.ImageListViewItem ilvi = new Gallery.ImageListViewItem(photo.ImagePath);
//we need to clear the filename form the text property, and set it to picture title
ilvi.Text = "Photo title: " + photo.Title + Environment.NewLine;
ilvi.Tag = new ImageInfo
{
PhotoID = photo.PhotoID
};
foreach (Descriptor descriptor in Enum.GetValues(typeof(Descriptor)))
{
if (descriptor != Descriptor.NONE && (desc & descriptor) == descriptor)
{
double distance = DescriptorTools.CalculateDescriptorDistance(query[descriptor], photo.GetByIndex(descriptor.ToString()).BDeserialize(), descriptor);
//TODO: distance needs to be set per descriptor
if (distance >= 0)
{
comply = true;
//string tmpFileName = TempManager.GetTempFileName();
string tmpFileName = Path.Combine(_FolderPath, photo.PhotoID + ".jpg");
((ImageInfo)ilvi.Tag).SetDescriptorDistance(descriptor, distance);
GalleryEntryBuilder(new FileInfo(tmpFileName), ref ilvi, descriptor.ToString() + ": " + distance.ToString("F"));
}
}
}
// after all descriptors touched the file it goes to the gallery if it complies with the query parameters
if (comply)
{
ilvGallery.Items.Add(ilvi);
}
}
}
catch (UnauthorizedAccessException)
{
// again.. so what.. go go go!
}
}
}
private void FlickrPhotoSearch(object searchOptions)
{
PhotoCollection photoCollection = _Flickr.PhotosSearch((PhotoSearchOptions)searchOptions);
_PhotoIdList.Clear();
WebClient client = new WebClient();
PhotosEntities photoEntities = new PhotosEntities();
foreach (FlickrNet.Photo photo in photoCollection)
{
_PhotoIdList.Add(photo.PhotoId);
string tempFile = Path.Combine(_FolderPath, photo.PhotoId + ".jpg");
// check if the photo was not indexed before
if (photoEntities.PhotoSet.Count(p => p.PhotoID == photo.PhotoId) < 1)
{
if (!File.Exists(tempFile))
client.DownloadFile(photo.MediumUrl, tempFile);
// insert record to db
FileInfo tmpFileInfo = new FileInfo(tempFile);
// it happened one and got the app crashed .. so just in case
if (tmpFileInfo.Length == 0) continue;
Photo dbPhotoEntry = new Photo {
PhotoID = photo.PhotoId,
Title = photo.Title,
UrlThumbnail = photo.ThumbnailUrl,
UrlMedium = photo.MediumUrl,
UrlLarge = photo.LargeUrl,
ImagePath = tempFile,
SCD = DescriptorTools.CalculateDescriptor(tmpFileInfo, Descriptor.SCD).BSerialize(),
CLD = DescriptorTools.CalculateDescriptor(tmpFileInfo, Descriptor.CLD).BSerialize(),
EHD = DescriptorTools.CalculateDescriptor(tmpFileInfo, Descriptor.EHD).BSerialize(),
CEDD = DescriptorTools.CalculateDescriptor(tmpFileInfo, Descriptor.CEDD).BSerialize(),
FCTH = DescriptorTools.CalculateDescriptor(tmpFileInfo, Descriptor.FCTH).BSerialize() };
photoEntities.PhotoSet.AddObject(dbPhotoEntry);
}
else
{
if (!File.Exists(tempFile))
client.DownloadFile(photo.MediumUrl, tempFile);
}
PopulateGallery(tempFile, photo);
if (!_IsIndexing)
{
photoEntities.SaveChanges();
return;
}
}
if (btnSearchFlickr.InvokeRequired)
{
this.Invoke((Action)(() => btnSearchFlickr.Text = "Index Flickr"));
}
else
{
btnSearchFlickr.Text = "Index Flickr";
}
_IsIndexing = false;
photoEntities.SaveChanges();
}
