public MonitoringResult(FileInfo file, string @class, Bitmap preview)
{
Guard.NotNull(() => file, file);
Guard.NotNull(() => preview, preview);
File = file;
Class = @class;
bitmap = preview;
bitmapSource = new Lazy <BitmapSource>(() => ImagerHelper.Bitmap2BitmapImage(bitmap));
}
public Bitmap CreatePreview(FileInfo file)
{
Guard.NotNull(() => file, file);
try
{
if (file.Extension.ToLower() != ".pdf")
{
logger.Debug("Not a pdf {0}", file);
return(ImagerHelper.CreateEmpty());
}
using (PdfDocumentProcessor documentProcessor = new PdfDocumentProcessor())
{
documentProcessor.LoadDocument(file.FullName);
if (documentProcessor.Document.Pages.Count == 0)
{
return(ImagerHelper.CreateEmpty());
}
if (documentProcessor.Document.Pages[0].CropBox.Height > maxHeight ||
documentProcessor.Document.Pages[0].CropBox.Width > maxWidth)
{
var width = documentProcessor.Document.Pages[0].CropBox.Width > maxWidth ? maxWidth : documentProcessor.Document.Pages[0].CropBox.Width;
var height = documentProcessor.Document.Pages[0].CropBox.Height > maxHeight ? maxHeight : documentProcessor.Document.Pages[0].CropBox.Height;
documentProcessor.Document.Pages[0].CropBox = new PdfRectangle(0, 0, width, height);
}
var bitmap = documentProcessor.CreateBitmap(1, 250);
using (Graphics graphics = Graphics.FromImage(bitmap))
{
int borderSize = 10;
using (Pen pen = new Pen(Color.Black, borderSize))
{
graphics.DrawRectangle(
pen,
0,
0,
bitmap.Width - borderSize,
bitmap.Height - borderSize);
}
return(bitmap);
}
}
}
catch (Exception ex)
{
logger.Warn(ex);
return(ImagerHelper.CreateEmpty());
}
}
