private async Task Refresh()
{
Processing = true;
FolderName = null;
RefreshPhotosCommand.RaiseCanExecuteChanged();
Thumbnails.Clear();
var filters = FilterFactory.CreateStreamFilters();
var maxItems = (uint)_highlightStrategy.BatchSize * 5;
if (SessionModel.Instance.Folder != null)
{
FolderName = SessionModel.Instance.Folder.DisplayName;
var models = await GetPhotosFromFolderAsync(SessionModel.Instance.Folder, maxItems);
for (var i = 0; i < models.Count; i++)
{
var k = i % (_highlightStrategy.BatchSize);
var highlight = _highlightStrategy.HighlightedIndexes.Contains(k);
Thumbnails.Add(new ThumbnailViewModel(models[i], TakeRandomFilter(filters), highlight));
}
}
else
{
var models = await GetPhotosFromFolderAsync(Windows.Storage.KnownFolders.CameraRoll, maxItems);
FolderName = Windows.Storage.KnownFolders.CameraRoll.DisplayName;
#if !WINDOWS_PHONE_APP
if (models.Count == 0)
{
models = await GetPhotosFromFolderAsync(Windows.Storage.KnownFolders.PicturesLibrary, maxItems);
FolderName = Windows.Storage.KnownFolders.PicturesLibrary.DisplayName;
}
#endif
for (var i = 0; i < models.Count; i++)
{
var k = i % (_highlightStrategy.BatchSize);
var highlight = _highlightStrategy.HighlightedIndexes.Contains(k);
Thumbnails.Add(new ThumbnailViewModel(models[i], TakeRandomFilter(filters), highlight));
}
}
Processing = false;
RefreshPhotosCommand.RaiseCanExecuteChanged();
}
private void ShowCluster(int clusterId)
{
if (bitmapReader != null && clusters != null)
{
Thumbnails.Clear();
foreach (int descriptorId in clusters[clusterId])
{
// TODO verbose (videoID, shotID...)
Bitmap bitmap = bitmapReader.ReadFrame(descriptorId);
Thumbnails.Add(new Thumbnail(descriptorId.ToString(), BitmapToImageSource(bitmap)));
}
}
}
private void ShowDisplay(int displayId)
{
if (bitmapReader != null && log != null)
{
Thumbnails.Clear();
int selectedItemId = log[displayId].Item1;
int[] displayedItems = log[displayId].Item2;
foreach (int displayedId in displayedItems)
{
// TODO verbose (videoID, shotID...)
Bitmap bitmap = bitmapReader.ReadFrame(displayedId);
if (selectedItemId == displayedId)
{
MarkSelectedItem(bitmap);
}
Thumbnails.Add(new Thumbnail(displayedId.ToString(), BitmapToImageSource(bitmap)));
}
}
}
private object ParseXml(string type, string XmlString, Func <string, object> customParser)
{
var imageList = new Thumbnails();
var xDoc = System.Xml.Linq.XDocument.Parse(XmlString);
if (xDoc.Root.Name.ToString() == "error")
{
var str = "API error:\n" + xDoc.Descendants("error")
.Select(el => el.Element("error_msg").Value)
.ToList <String>()[0];
Debug.WriteLine(str);
return(null);
}
if (customParser != null)
{
return(customParser(XmlString));
}
switch (type)
{
case ("photos.getAlbums"):
var albums = xDoc.Descendants("album").Select(a => new Thumbnail
{
Name = a.Element("aid").Value,
Title = a.Element("title").Value,
Image = ImageDataFromUri(a.Element("thumb_src").Value),
Checked = false
});
imageList.Clear();
foreach (var album in albums)
{
imageList.Add(album);
}
return(imageList);
case ("photos.get"):
Func <System.Xml.Linq.XElement, string> tmp = (xElement) =>
{
var bigImage = xElement.Element("src_xxxbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
bigImage = xElement.Element("src_xxbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
bigImage = xElement.Element("src_xbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
bigImage = xElement.Element("src_big");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
bigImage = xElement.Element("src");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
bigImage = xElement.Element("src_small");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
{
return(bigImage.Value);
}
return(null);
};
var photos = xDoc.Descendants("photo")
.Select(a => new Thumbnail()
{
Name = a.Element("src_small").Value.Split('/').Last(),
Title = tmp(a).Split('/').Last(),
BigImage = tmp(a),
Image = ImageDataFromUri(a.Element("src_small").Value),
Checked = false
});
imageList.Clear();
foreach (var photo in photos)
{
imageList.Add(photo);
}
return(imageList);
case "utils.resolveScreenName":
return(xDoc.Element("response").HasElements ? xDoc.Element("response").Element("object_id").Value : null);
case "users.get":
return(xDoc.Element("response").Element("id").Value);
default:
break;
}
return(null);
}
private object ParseXml(string type, string XmlString, Func<string, object> customParser)
{
var imageList = new Thumbnails();
var xDoc = System.Xml.Linq.XDocument.Parse(XmlString);
if (xDoc.Root.Name.ToString() == "error")
{
var str = "API error:\n" + xDoc.Descendants("error")
.Select(el => el.Element("error_msg").Value)
.ToList<String>()[0];
Debug.WriteLine(str);
return null;
}
if (customParser != null)
return customParser(XmlString);
switch (type)
{
case ("photos.getAlbums"):
var albums = xDoc.Descendants("album").Select(a => new Thumbnail
{
Name = a.Element("aid").Value,
Title = a.Element("title").Value,
Image = ImageDataFromUri(a.Element("thumb_src").Value),
Checked = false
});
imageList.Clear();
foreach (var album in albums)
imageList.Add(album);
return imageList;
case ("photos.get"):
Func<System.Xml.Linq.XElement, string> tmp = (xElement) =>
{
var bigImage = xElement.Element("src_xxxbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
bigImage = xElement.Element("src_xxbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
bigImage = xElement.Element("src_xbig");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
bigImage = xElement.Element("src_big");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
bigImage = xElement.Element("src");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
bigImage = xElement.Element("src_small");
if (bigImage != null && !string.IsNullOrWhiteSpace(bigImage.Value))
return bigImage.Value;
return null;
};
var photos = xDoc.Descendants("photo")
.Select(a => new Thumbnail()
{
Name = a.Element("src_small").Value.Split('/').Last(),
Title = tmp(a).Split('/').Last(),
BigImage = tmp(a),
Image = ImageDataFromUri(a.Element("src_small").Value),
Checked = false
});
imageList.Clear();
foreach (var photo in photos)
imageList.Add(photo);
return imageList;
case "utils.resolveScreenName":
return xDoc.Element("response").HasElements ? xDoc.Element("response").Element("object_id").Value : null;
case "users.get":
return xDoc.Element("response").Element("id").Value;
default:
break;
}
return null;
}
