/// <summary>
/// Creates an embedded shadow copy of a source image file.
/// </summary>
/// <param name="sourceFile"></param>
/// <param name="fileService"></param>
private void CreateShadowFile(ImageFileData sourceFile, ISupportingFileService fileService)
{
Size shadowSize = new Size(1280, 960);
using (MemoryStream shadowStream = new MemoryStream())
{
ImageFormat format;
string fileExt;
ImageHelper2.GetImageFormat(sourceFile.SupportingFile.FileName, out fileExt, out format);
using (Bitmap sourceImage = new Bitmap(sourceFile.Uri.LocalPath))
{
if (sourceImage.Width > shadowSize.Width || sourceImage.Height > shadowSize.Height)
{
shadowSize = ImageHelper2.SaveScaledThumbnailImage(Math.Min(shadowSize.Width, sourceImage.Width),
Math.Min(shadowSize.Height, sourceImage.Height),
sourceImage, format, shadowStream);
}
else
{
shadowSize = sourceImage.Size;
using (FileStream fs = File.OpenRead(sourceFile.Uri.LocalPath))
{
StreamHelper.Transfer(fs, shadowStream);
}
}
}
shadowStream.Seek(0, SeekOrigin.Begin);
ISupportingFile supportingFile = fileService.CreateSupportingFile(sourceFile.SupportingFile.FileName, shadowStream);
_imageSourceShadowFile = new ImageFileData(supportingFile, shadowSize.Width, shadowSize.Height, ImageFileRelationship.SourceShadow);
}
}
public static Size WriteImageToFile(string sourceFile, int width, int height, string outputFile, bool preserveConstraints)
{
using (Bitmap sourceImage = new Bitmap(sourceFile))
{
FixImageOrientation(sourceImage);
using (Stream imageOut = new FileStream(outputFile, FileMode.Create, FileAccess.Write))
{
ImageFormat format;
string fileExt;
ImageHelper2.GetImageFormat(sourceFile, out fileExt, out format);
if (preserveConstraints)
{
ImageHelper2.SaveScaledThumbnailImage(width, height, sourceImage, format, imageOut);
}
else
{
ImageHelper2.SaveThumbnailImage(width, height, sourceImage, format, imageOut);
}
}
}
if (preserveConstraints)
{
using (Bitmap img = new Bitmap(outputFile))
return(img.Size);
}
else
{
return(new Size(width, height));
}
}