public void AddWatermark2()
{
Image originImage = Image.FromFile(@"C:\1305211066-1784_600-0_6-0.jpg");
//Image image = ImageHandler.WatermarkHandler.AddCopyrightText(originImage, "copyright", Color.FromArgb(153,0,0,0),Color.FromArgb(153,255,255,255),
// 1,1,"Arial", FontStyle.Bold, StringAlignment.Far, 72f,72f);
//Image image = ImageHandler.WatermarkHandler.AddCopyrightText(originImage, "中文", CopyrightPosition.TopLeft);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.TopCenter);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.TopRight);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.MiddleLeft);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.MiddleCenter);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.MiddleRight);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.BottomLeft);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.BottomCenter);
//image = ImageHandler.WatermarkHandler.AddCopyrightText(image, "copyright", CopyrightPosition.BottomRight);
TextWatermarker txtWatermarkder = new TextWatermarker(originImage, "Hello");
txtWatermarkder.HorizontalPosition = WatermarkHorizontalPostion.Right;
txtWatermarkder.VerticalPosition = WatermarkVerticalPostion.Bottom;
Image image = txtWatermarkder.AddWatermark();
Response.ContentType = "image/jpeg";
image.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
originImage.Dispose();
image.Dispose();
txtWatermarkder.Dispose();
}
public void AddWatermark()
{
// First, add the image watermark
Image originImage = Image.FromFile(@"C:\source.jpg");
Image watermark = Image.FromFile(@"C:\clock.png");
ImageWatermarker imgWatermarker = new ImageWatermarker(originImage, watermark);
// You can set the watermark size, if you not then the watermark will be its original size by default
imgWatermarker.SetWatermarkHeight(80);
imgWatermarker.AddWatermark();
// Second, add the text watermark
TextWatermarker txtWatermarker = new TextWatermarker(imgWatermarker.WatermarkedImage, "www.zizhujy.com");
txtWatermarker.Position = WatermarkPostion.TopLeft;
txtWatermarker.AddWatermark();
// Response and show the watermarked image in the browser
Response.ContentType = "image/jpeg";
// Note: save the secondly watermarked image
// (txtWatermarker not imgWatermarker because the txtWatermarker comes after than imgWatermarker)
txtWatermarker.WatermarkedImage.Save(Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
imgWatermarker.Dispose();
watermark.Dispose();
originImage.Dispose();
}
void ImageGuarding(object sender, EventArgs e)
{
HttpContext context = HttpContext.Current;
if (context.Request.UrlReferrer != null)
{
if (string.Compare(context.Request.Url.Host.Replace("www.", ""), context.Request.UrlReferrer.Host.Replace("www.", ""), true, CultureInfo.InvariantCulture) != 0)
{
string guardingType = settings.GetSingleValue("guardingType");
if (guardingType.Equals("Reject"))
{
context.Response.StatusCode = 403;
context.Response.End();
}
else if (guardingType.Equals("Block"))
{
string blockImagePath = settings.GetSingleValue("blockImagePath");
var fi = new FileInfo(context.Server.MapPath(blockImagePath));
if (fi.Exists)
{
//context.Response.Cache.SetCacheability(HttpCacheability.Public);
//context.Response.Cache.SetExpires(DateTime.Now.AddYears(1));
string extension = Path.GetExtension(fi.Name);
context.Response.ContentType = string.Compare(extension.ToUpper(), "JPG") == 0 ? "image/jpeg" : string.Format("image/{0}", extension);
context.Response.TransmitFile(fi.FullName);
context.Response.End();
}
}
else if (guardingType.Equals("Watermark"))
{
FileInfo originImageFileInfo = GetOriginalImage();
if (originImageFileInfo != null)
{
TextWatermarker txtWatermarker = null;
ImageWatermarker imgWatermarker = null;
Image originImage = Bitmap.FromFile(originImageFileInfo.FullName);
string watermarkText = settings.GetSingleValue("watermarkText");
if (!string.IsNullOrWhiteSpace(watermarkText))
{
txtWatermarker = new TextWatermarker(originImage, watermarkText);
txtWatermarker.AddWatermark();
originImage = txtWatermarker.WatermarkedImage;
}
string watermarkImagePath = settings.GetSingleValue("watermarkImagePath");
if (!string.IsNullOrWhiteSpace(watermarkImagePath))
{
FileInfo fi = new FileInfo(context.Server.MapPath(watermarkImagePath));
if (fi.Exists)
{
Image watermarkImage = Bitmap.FromFile(fi.FullName);
imgWatermarker = new ImageWatermarker(originImage, watermarkImage);
imgWatermarker.Position = WatermarkPostion.BottomLeft;
imgWatermarker.AddWatermark();
originImage = imgWatermarker.WatermarkedImage;
}
}
// Serving the watermarked image
//context.Response.Cache.SetCacheability(HttpCacheability.Public);
//context.Response.Cache.SetExpires(DateTime.Now.AddYears(1));
string extension = Path.GetExtension(originImageFileInfo.Name);
context.Response.ContentType = string.Compare(extension.ToUpper(), "JPG") == 0 ? "image/jpeg" : string.Format("image/{0}", extension);
//originImage.Save(context.Response.OutputStream, ImageHelper.GetImageFormatByExtension(extension));
MemoryStream mem = new MemoryStream();
originImage.Save(mem, ImageHelper.GetImageFormatByExtension(extension));
mem.WriteTo(context.Response.OutputStream);
mem.Dispose();
originImage.Dispose();
if (txtWatermarker != null)
{
txtWatermarker.Dispose();
}
if (imgWatermarker != null)
{
imgWatermarker.Dispose();
}
context.Response.End();
}
else
{
context.Response.StatusCode = 404;
context.Response.End();
}
}
else
{
}
}
else
{
// string.Compare(context.Request.Url.Host, context.Request.UrlReferrer.Host, true, CultureInfo.InvariantCulture) == 0
// The request host and the referrer host are the same, serve the image normally
//FileInfo originImageFileInfo = GetOriginalImage();
//if (originImageFileInfo != null)
//{
// TextWatermarker txtWatermarker = null;
// Image originImage = Bitmap.FromFile(originImageFileInfo.FullName);
// string watermarkText = context.Request.Url.Host;
// if (!string.IsNullOrWhiteSpace(watermarkText))
// {
// txtWatermarker = new TextWatermarker(originImage, watermarkText);
// txtWatermarker.Position = WatermarkPostion.TopLeft;
// txtWatermarker.AddWatermark();
// originImage = txtWatermarker.WatermarkedImage;
// }
// watermarkText = context.Request.UrlReferrer.Host;
// if (!string.IsNullOrWhiteSpace(watermarkText))
// {
// txtWatermarker = new TextWatermarker(originImage, watermarkText);
// txtWatermarker.AddWatermark();
// originImage = txtWatermarker.WatermarkedImage;
// }
// string extension = Path.GetExtension(originImageFileInfo.Name);
// context.Response.ContentType = string.Compare(extension.ToUpper(), "JPG") == 0 ? "image/jpeg" : string.Format("image/{0}", extension);
// //originImage.Save(context.Response.OutputStream, ImageHelper.GetImageFormatByExtension(extension));
// MemoryStream mem = new MemoryStream();
// originImage.Save(mem, ImageHelper.GetImageFormatByExtension(extension));
// mem.WriteTo(context.Response.OutputStream);
// mem.Dispose();
// originImage.Dispose();
// if (txtWatermarker != null)
// txtWatermarker.Dispose();
// context.Response.End();
//}
//else
//{
// context.Response.StatusCode = 404;
// context.Response.End();
//}
}
}
}
