protected void Page_Load(object sender, EventArgs e)
{
string counterid = Request["id"];
_srv = ServiceFactory.GetCounterService();
if (Application["Counter_" + counterid] == null)
{
_counter = _srv.CounterSelect( 5 );
Application["Counter_" + counterid] = _counter.Count;
}
int value = Convert.ToInt32( Application["Counter_" + counterid]);
if (Session["CounterTemp_" + counterid] == null)
{
if(_counter == null)
_counter = _srv.CounterSelect( 5 );
value++;
_counter.Count = value;
// Save counter to an application var (the locks are there to make sure noone else changes it at the same time)
Application.Lock();
Application["Counter_" + counterid] = value.ToString();
Application.UnLock();
// Save counter to a text file
_srv.CounterUpdate( _counter );
// Set a session variable so this counter doesn//t fire again in the current session
Session.Add("CounterTemp_" + counterid, "True");
}
// ***** CREATE OUTPUT GRAPHIC FOR THE COUNTER *****
// Load digits graphic (must be in 0 through 9 format in graphic w/ all digits of set width)
System.Drawing.Image i = System.Drawing.Image.FromFile(Server.MapPath((Request.QueryString["src"])));
// Get digit dynamics from the graphic
int dgwidth = i.Width/10;
int dgheight = i.Height;
// Get number of digits to display in the output graphic
int digits = Convert.ToInt32(Request["digits"]);
// Create output object
Bitmap imgOutput = new Bitmap(dgwidth*digits, dgheight, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(imgOutput);
int j;
int dg;
string srt = ("00000000000000" + value.ToString());
srt = srt.Substring( srt.Length - digits, digits );
for (j = 0; j < digits; j++)
{
// Extract digit from value
//dg = Convert.ToInt32(Math.Truncate((double)(value/(10 ^ (digits - j - 1)))) - Math.Truncate((double)(value/(10 ^ (digits - j))))*10);
dg = Convert.ToInt32( srt.Substring( j, 1 ) );
// Add digit to the output graphic
g.DrawImage(i, new
Rectangle(j*dgwidth, 0, dgwidth, dgheight),
new Rectangle
(dg*dgwidth,
0,
dgwidth,
dgheight),
GraphicsUnit.Pixel);
}
// Set the content type and return output image
Response.ContentType = "image/jpeg";
imgOutput.Save(Response.OutputStream, ImageFormat.Jpeg);
// Clean up
g.Dispose();
imgOutput.Dispose();
}
