private System.Drawing.Image GetScaledPhoto(int activismId, int ySize, int pWidth, int pNoOverlay)
{
ExternalActivity activity = ExternalActivity.FromIdentity(activismId);
Documents docs = Documents.ForObject(activity);
if (docs.Count == 0)
{
return(null);
}
using (System.Drawing.Image unscaledImage = System.Drawing.Image.FromFile(@"C:\Data\Uploads\PirateWeb\" + docs[0].ServerFileName))
{
// Generate image
float factor = 1;
int xSize = 600;
if (pWidth > 0 && pWidth < 1000)
{
factor = ((float)pWidth) / ((float)xSize);
xSize = pWidth;
ySize = (int)(xSize * ((float)unscaledImage.Height) / ((float)unscaledImage.Width));
}
string label = activity.DateTime.ToString("yyyy-MM-dd") + ": " + activity.Description;
System.Drawing.Image newImage = GetResizedImage(xSize, label, unscaledImage, pNoOverlay);
return(newImage);
}
}
protected void Page_Load(object sender, EventArgs e)
{
int activismId = 0;
string idString = Request.QueryString["Id"];
if (idString == "latest")
{
ExternalActivities activities = ExternalActivities.ForOrganization(Organization.PPSE, ExternalActivities.SortOrder.CreationDateDescending, 1);
activismId = activities[0].Identity;
}
else
{
activismId = Int32.Parse(idString);
}
int ySize = 450;
int pWidth = Int32.Parse("0" + Request.QueryString["Width"]);
int pNoOverlay = Int32.Parse("0" + Request.QueryString["NoOverlay"]);
int cacheLength = (activismId % 10) * 100 + 500;
Response.Cache.SetExpires(DateTime.Now.AddSeconds(cacheLength));
string photoPath = @"C:\Data\Uploads\PirateWeb\ActivismImgCache\";
string fileName = "a" + activismId + "w" + pWidth + "o" + pNoOverlay + ".jpg";
Response.ContentType = "image/jpeg";
try
{
FileInfo cachedFile = new FileInfo(photoPath + fileName);
ExternalActivity act = ExternalActivity.FromIdentity(activismId);
if (cachedFile.LastWriteTime < act.CreatedDateTime)
{
cachedFile.Delete();
throw new FileNotFoundException("Cached File Invalid");
}
Response.WriteFile(photoPath + fileName, false);
}
catch (FileNotFoundException)
{
// Call garbage collector to prevent Out Of Memory
GC.Collect();
GC.WaitForPendingFinalizers();
using (System.Drawing.Image photo = GetScaledPhoto(activismId, ySize, pWidth, pNoOverlay))
{
if (photo != null)
{
try
{
photo.Save(photoPath + fileName, ImageFormat.Jpeg);
}
catch (Exception) { }
using (Stream outputstream = Response.OutputStream)
{
photo.Save(outputstream, ImageFormat.Jpeg);
}
}
}
}
}
