public static void Save(string originalFilename, string captionedFilename, Models.ImageModel captionDetails)
{
ILogService logService = null;
try
{
// create the dependencies for this thread
var imageMetadataService = NinjectKernel.Get <IImageMetadataService>();
var imageService = NinjectKernel.Get <IImageService>();
logService = NinjectKernel.Get <ILogService>();
var quickCaptionService = NinjectKernel.Get <IQuickCaptionService>();
logService.Trace($@"Getting ""{originalFilename}""...");
var image = imageService.Get(originalFilename);
logService.Trace($@"Captioning ""{originalFilename}""...");
var captionedImage = Caption(image, captionDetails, new CancellationTokenSource().Token);
logService.Trace($@"Saving ""{originalFilename}"" to ""{captionedFilename}""...");
var metadata = Mapper.Map <Services.Models.Metadata>(captionDetails);
imageService.Save(image, captionedFilename, metadata.ImageFormat ?? ImageFormat.Png);
logService.Trace($@"Saving metadata for ""{originalFilename}""...");
imageMetadataService.Save(metadata, originalFilename);
// save the output file for the image
captionDetails.OutputFilename = captionedFilename;
// save the quick caption
quickCaptionService.Add(captionedFilename, metadata);
// flag that the current image has metadata
captionDetails.IsMetadataLoaded = true;
// do we need to flag it as saved?
if (captionDetails.IsSaved)
{
return;
}
// flag that the current image has been saved
captionDetails.IsSaved = true;
// flag that the current preview needs to be reloaded
captionDetails.IsPreviewLoaded = false;
logService.Trace("Reloading preview...");
PreviewThread(_current, _openCancellationTokenSource.Token);
}
finally
{
logService?.TraceExit();
}
}
public static Image Caption(Image originalImage, Models.ImageModel captionDetails, CancellationToken cancellationToken)
{
ILogService logService = null;
try
{
// create dependencies
logService = NinjectKernel.Get <ILogService>();
var quickCaptionService = NinjectKernel.Get <IQuickCaptionService>();
logService.TraceEnter();
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace("Adding caption to background image...");
var captionedImage = AddCaptionToImage(originalImage, captionDetails, cancellationToken);
if (cancellationToken.IsCancellationRequested)
{
captionedImage?.Dispose();
return(null);
}
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace("Mapping to service layer...");
var metadata = Mapper.Map <Services.Models.Metadata>(captionDetails);
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace($@"Loading new list of quick captions for ""{captionDetails.Filename}""...");
quickCaptionService.Switch(captionDetails.Filename, metadata);
return(captionedImage);
}
finally
{
logService?.TraceExit();
}
}
private static Image AddCaptionToImage(Image image, Models.ImageModel imageModel, CancellationToken cancellationToken)
{
ILogService logService = null;
try
{
// create the dependencies
var configurationService = NinjectKernel.Get <IConfigurationService>();
var imageService = NinjectKernel.Get <IImageService>();
logService = NinjectKernel.Get <ILogService>();
logService.TraceEnter();
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace("Populating values to use for caption...");
var backgroundColour = imageModel.BackgroundColour ?? configurationService.BackgroundColour;
var captionAlignment = imageModel.CaptionAlignment ?? configurationService.CaptionAlignment;
var colour = imageModel.Colour ?? configurationService.Colour;
var fontBold = imageModel.FontBold ?? configurationService.FontBold;
var fontName = imageModel.FontName ?? configurationService.FontName;
var fontSize = imageModel.FontSize ?? configurationService.FontSize;
var fontType = imageModel.FontType ?? configurationService.FontType;
// what is the caption?
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
var captionBuilder = new StringBuilder(imageModel.Caption);
// is there a date taken?
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace($@"Checking if ""{imageModel.Filename}"" has a date taken set...");
if (imageModel.DateTaken != null &&
(imageModel.AppendDateTakenToCaption ?? configurationService.AppendDateTakenToCaption))
{
if (captionBuilder.Length > 0)
{
captionBuilder.Append(" - ");
}
captionBuilder.Append(imageModel.DateTaken);
}
var caption = captionBuilder.ToString();
// create the caption
if (cancellationToken.IsCancellationRequested)
{
return(null);
}
logService.Trace($@"Caption for ""{imageModel.Filename}"" is ""{caption}"". Creating image...");
return(imageService.Caption(image, caption, captionAlignment, fontName, fontSize,
fontType, fontBold, new SolidBrush(colour), backgroundColour, cancellationToken));
}
finally
{
logService?.TraceExit();
}
}