/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public virtual void OnCropping(Object sender, CropImageEventArgs e)
{
if (Cropping != null)
{
Cropping(this, e);
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public virtual void OnCropped(Object sender, CropImageEventArgs e)
{
//EnsureChildControls();
if (Cropped != null)
{
Cropped(this, e);
}
}
/// <summary>
/// Call this function when button clicked.
/// </summary>
/// <param name="path"></param>
public void Crop(string path)
{
//EnsureChildControls();
CropImageEventArgs args = new CropImageEventArgs();
args.X = Convert.ToInt32(Page.Request["_x"]);
args.Y = Convert.ToInt32(Page.Request["_y"]);
args.Width = Convert.ToInt32(Page.Request["_w"]);
args.Height = Convert.ToInt32(Page.Request["_h"]);
this.X = args.X;
this.Y = args.Y;
this.W = args.Width;
this.H = args.Height;
this.X2 = args.Width + args.X;
this.Y2 = args.Height + args.Y;
//repair size because of canvas fitting
double fact = CanvasRatio;
if (fact > 0)
{
args.X = Convert.ToInt32(args.X / fact);
args.Y = Convert.ToInt32(args.Y / fact);
args.Width = Convert.ToInt32(args.Width / fact);
args.Height = Convert.ToInt32(args.Height / fact);
}
// maintain details after postback!
//HttpContext.Current.Response.Write("w:" + this.W);
OnCropping(this, args);
// create property called save as and save this file to there.
System.Drawing.Graphics g = null;
System.Drawing.Bitmap cropedImage = null;
drawing.Image image = null;
try
{
image = drawing.Image.FromStream(new MemoryStream(System.IO.File.ReadAllBytes(HttpContext.Current.Server.MapPath(this.ImagePath))));
}
catch (Exception ex)
{
Stream stream = null;
try
{
WebRequest req = WebRequest.Create(this.ImagePath);
WebResponse response = req.GetResponse();
stream = response.GetResponseStream();
image = drawing.Image.FromStream(stream);
stream.Close();
}
catch (Exception ex2)
{
stream.Close();
throw ex2;
}
}
if (EnablePreview)
{
cropedImage = new Bitmap(
this.PreviewWidth,
this.PreviewHeight
, image.PixelFormat);
}
else
{
cropedImage = new Bitmap(
args.Width
, args.Height
, image.PixelFormat);
}
g = System.Drawing.Graphics.FromImage(cropedImage);
drawing.Rectangle _rec;
drawing.Rectangle _rec2;
if (EnablePreview)
{
_rec = new drawing.Rectangle(
0, 0,
this.PreviewWidth,
this.PreviewHeight);
_rec2 = new drawing.Rectangle(
args.X,
args.Y,
args.Width,
args.Height);
}
else
{
_rec = new drawing.Rectangle(0, 0,
args.Width,
args.Height);
_rec2 = new drawing.Rectangle(
args.X,
args.Y,
args.Width,
args.Height);
}
g.DrawImage(image, _rec, _rec2.X, _rec2.Y
, _rec2.Width, _rec2.Height
, drawing.GraphicsUnit.Pixel);
string mimeType = GetMimeType(image);
if (mimeType == "image/unknown")
{
cropedImage.Save(path);
}
else if (mimeType == "image/jpeg")
{
cropedImage.Save(path, ImageFormat.Jpeg);
}
else if (mimeType == "image/gif")
{
cropedImage.Save(path, ImageFormat.Gif);
}
else if (mimeType == "image/x-png")
{
cropedImage.Save(path, ImageFormat.Png);
}
else if (mimeType == "image/x-ms-bmp")
{
cropedImage.Save(path, ImageFormat.Bmp);
}
image.Dispose();
g.Dispose();
cropedImage.Dispose();
OnCropped(this, args);
}
public void CropActualPic(int compressedHeight, string cropImgPath)
{
drawing.Image image = null;
int actualHeight = 0;
try
{
image = drawing.Image.FromStream(new MemoryStream(System.IO.File.ReadAllBytes(this.ImagePhysicalPath)));
actualHeight = image.Height;
}
catch (Exception ex)
{
Stream stream = null;
try
{
WebRequest req = WebRequest.Create(this.ImagePath);
WebResponse response = req.GetResponse();
stream = response.GetResponseStream();
image = drawing.Image.FromStream(stream);
actualHeight = image.Height;
stream.Close();
}
catch (Exception ex2)
{
stream.Close();
throw ex2;
}
}
float aspectRatio = (float)actualHeight / (float)compressedHeight;
CropImageEventArgs args = new CropImageEventArgs();
args.X = (int)(Convert.ToInt32(Page.Request["_x"]) * aspectRatio);
args.Y = (int)(Convert.ToInt32(Page.Request["_y"]) * aspectRatio);
args.Width = (int)(Convert.ToInt32(Page.Request["_w"]) * aspectRatio);
args.Height = (int)(Convert.ToInt32(Page.Request["_h"]) * aspectRatio);
this.X = args.X;
this.Y = args.Y;
this.W = args.Width;
this.H = args.Height;
this.X2 = args.Width + args.X;
this.Y2 = args.Height + args.Y;
Bitmap cropedImage = new Bitmap(
args.Width
, args.Height
, PixelFormat.Format24bppRgb);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(cropedImage);
drawing.Rectangle _rec;
drawing.Rectangle _rec2;
_rec = new drawing.Rectangle(0, 0,
args.Width,
args.Height);
_rec2 = new drawing.Rectangle(
args.X,
args.Y,
args.Width,
args.Height);
g.DrawImage(image, _rec, _rec2.X, _rec2.Y
, _rec2.Width, _rec2.Height
, drawing.GraphicsUnit.Pixel);
string mimeType = GetMimeType(image);
if (mimeType == "image/unknown")
{
cropedImage.Save(cropImgPath);
}
else if (mimeType == "image/jpeg")
{
cropedImage.Save(cropImgPath, ImageFormat.Jpeg);
}
else if (mimeType == "image/gif")
{
cropedImage.Save(cropImgPath, ImageFormat.Gif);
}
else if (mimeType == "image/x-png" || mimeType == "image/png")
{
cropedImage.Save(cropImgPath, ImageFormat.Png);
}
else if (mimeType == "image/x-ms-bmp")
{
cropedImage.Save(cropImgPath, ImageFormat.Bmp);
}
if (image != null)
{
image.Dispose();
}
g.Dispose();
cropedImage.Dispose();
OnCropped(this, args);
}
private Stream CropActualPic(int compressedSize, bool isHeight)
{
drawing.Image image = null;
Stream returnStream = new MemoryStream();
int actualSize = 0;
try
{
if (this.ImagePhysicalPath != string.Empty)
{
image =
drawing.Image.FromStream(new MemoryStream(System.IO.File.ReadAllBytes(this.ImagePhysicalPath)));
}
else
{
image =
drawing.Image.FromStream(
new MemoryStream(
System.IO.File.ReadAllBytes(HttpContext.Current.Server.MapPath(this.ImagePath))));
}
}
catch (Exception ex)
{
Stream stream = null;
try
{
WebRequest req = WebRequest.Create(this.ImagePath);
WebResponse response = req.GetResponse();
stream = response.GetResponseStream();
image = drawing.Image.FromStream(stream);
stream.Close();
}
catch (Exception ex2)
{
stream.Close();
throw ex2;
}
}
actualSize = (isHeight) ? image.Height : image.Width;
float aspectRatio = (float)actualSize / (float)compressedSize;
CropImageEventArgs args = new CropImageEventArgs();
args.X = (int)(Convert.ToInt32(Page.Request["_x"]) * aspectRatio);
args.Y = (int)(Convert.ToInt32(Page.Request["_y"]) * aspectRatio);
args.Width = (int)(Convert.ToInt32(Page.Request["_w"]) * aspectRatio);
args.Height = (int)(Convert.ToInt32(Page.Request["_h"]) * aspectRatio);
this.X = args.X;
this.Y = args.Y;
this.W = args.Width;
this.H = args.Height;
this.X2 = args.Width + args.X;
this.Y2 = args.Height + args.Y;
Bitmap cropedImage = new Bitmap(
args.Width
, args.Height
, image.PixelFormat);
System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(cropedImage);
drawing.Rectangle _rec;
drawing.Rectangle _rec2;
_rec = new drawing.Rectangle(0, 0,
args.Width,
args.Height);
_rec2 = new drawing.Rectangle(
args.X,
args.Y,
args.Width,
args.Height);
g.DrawImage(image, _rec, _rec2.X, _rec2.Y
, _rec2.Width, _rec2.Height
, drawing.GraphicsUnit.Pixel);
string mimeType = GetMimeType(image);
if (mimeType == "image/unknown")
{
cropedImage.Save(returnStream, ImageFormat.Jpeg);
}
else if (mimeType == "image/jpeg")
{
cropedImage.Save(returnStream, ImageFormat.Jpeg);
}
else if (mimeType == "image/gif")
{
cropedImage.Save(returnStream, ImageFormat.Gif);
}
else if (mimeType == "image/x-png")
{
cropedImage.Save(returnStream, ImageFormat.Png);
}
else if (mimeType == "image/x-ms-bmp")
{
cropedImage.Save(returnStream, ImageFormat.Bmp);
}
image.Dispose();
g.Dispose();
cropedImage.Dispose();
OnCropped(this, args);
return(returnStream);
}
