/// <summary>
/// Compare rotation type
/// </summary>
/// <param name="propertyName">name of property e.g. Rotation</param>
/// <param name="sourceIndexItem">source object</param>
/// <param name="oldRotationValue">oldRotationValue to compare with newRotationValue</param>
/// <param name="newRotationValue">oldRotationValue to compare with newRotationValue</param>
/// <param name="differenceList">list of different values</param>
private static void CompareRotation(string propertyName, FileIndexItem sourceIndexItem,
FileIndexItem.Rotation oldRotationValue, FileIndexItem.Rotation newRotationValue, List <string> differenceList)
{
if (oldRotationValue == newRotationValue || newRotationValue == FileIndexItem.Rotation.DoNotChange)
{
return;
}
sourceIndexItem.GetType().GetProperty(propertyName).SetValue(sourceIndexItem, newRotationValue, null);
differenceList.Add(propertyName.ToLowerInvariant());
}
public async Task <bool> WriteAndCropFile(string fileHash,
OffsetModel offsetData, int sourceWidth,
int sourceHeight, FileIndexItem.Rotation rotation,
string reference = null)
{
try
{
using (var thumbnailStream = new MemoryStream(offsetData.Data, offsetData.Index, offsetData.Count))
using (var smallImage = await Image.LoadAsync(thumbnailStream))
using (var outputStream = new MemoryStream())
{
var smallImageWidth = smallImage.Width;
var smallImageHeight = smallImage.Height;
var result = NewImageSize.NewImageSizeCalc(smallImageWidth,
smallImageHeight, sourceWidth, sourceHeight);
smallImage.Mutate(
i => i.Resize(smallImageWidth, smallImageHeight, KnownResamplers.Lanczos3)
.Crop(new Rectangle(result.DestX, result.DestY, result.DestWidth, result.DestHeight)));
var larger = (int)Math.Round(result.DestWidth * 1.2, 0);
smallImage.Mutate(
i => i.Resize(larger, 0, KnownResamplers.Lanczos3));
var rotate = RotateEnumToDegrees(rotation);
smallImage.Mutate(
i => i.Rotate(rotate));
await smallImage.SaveAsJpegAsync(outputStream);
await _thumbnailStorage.WriteStreamAsync(outputStream, ThumbnailNameHelper.Combine(fileHash, ThumbnailSize.TinyMeta));
if (_appSettings.ApplicationType == AppSettings.StarskyAppType.WebController)
{
_logger.LogInformation($"[WriteAndCropFile] fileHash: {fileHash} is written");
}
}
return(true);
}
catch (Exception ex)
{
var message = ex.Message;
if (message.StartsWith("Image cannot be loaded"))
{
message = "Image cannot be loaded";
}
_logger.LogError($"[WriteFile@meta] Exception {reference} {message}", ex);
return(false);
}
}
internal float RotateEnumToDegrees(FileIndexItem.Rotation rotation)
{
// ReSharper disable once SwitchStatementHandlesSomeKnownEnumValuesWithDefault
switch (rotation)
{
case FileIndexItem.Rotation.Rotate180:
return(180);
case FileIndexItem.Rotation.Rotate90Cw:
return(90);
case FileIndexItem.Rotation.Rotate270Cw:
return(270);
default:
return(0);
}
}
public Task <bool> WriteAndCropFile(string fileHash, OffsetModel offsetData, int sourceWidth,
int sourceHeight, FileIndexItem.Rotation rotation, string reference = null)
{
return(Task.FromResult(true));
}
