protected override void OnInit(EventArgs e)
{
base.OnInit(e);
sizes = Engine.Resolve<EditSection>().Images.Sizes;
fs = Engine.Resolve<IFileSystem>();
ImagesUtility.SplitImageAndSize(Selection.SelectedItem.Url, sizes.GetSizeNames(), out baseImagePath, out imageSize);
originalImagePath = fs.GetExistingImagePath(baseImagePath, "original");
size = sizes.FirstOrDefault(s => s.Name == imageSize);
}
private void AddSize(string baseImagePath, ImageSizeElement size)
{
if (size == null)
throw new ArgumentNullException("size");
bool exists;
var path = Fs.GetExistingImagePath(baseImagePath, size.Name, out exists);
if (exists)
{
if (SelectedFile == null)
throw new ArgumentNullException("SelectedFile");
var file = (SelectedFile.Parent as File) ?? SelectedFile;
var child = file.GetChild(VirtualPathUtility.GetFileName(path));
AddSizeControl(size, path, file, child);
}
}
public virtual void CreateSize(Url virtualPath, byte[] image, ImageSizeElement size)
{
if (!size.ResizeOnUpload)
return;
string resizedPath = ImagesUtility.GetResizedPath(virtualPath, size.Name);
using (var sourceStream = new MemoryStream(image))
{
if (size.Width <= 0 && size.Height <= 0)
{
using (var destinationStream = files.OpenFile(resizedPath))
{
int b;
while ((b = sourceStream.ReadByte()) != -1)
{
destinationStream.WriteByte((byte)b);
}
}
}
else
{
// Delete the image before writing.
// Fixes a weird bug where overwriting the original file while it still exists
// leaves the resized image the with the exact same file size as the original even
// though it should be smaller.
if (files.FileExists(resizedPath))
{
files.DeleteFile(resizedPath);
}
try
{
using (var destinationStream = files.OpenFile(resizedPath))
{
resizer.Resize(sourceStream, new ImageResizeParameters(size.Width, size.Height, size.Mode) { Quality = size.Quality }, destinationStream);
}
}
catch
{
}
}
}
}
private static string GetText(ImageSizeElement ise)
{
return ise.Name + " " + GetLengthText(ise.Width) + "," + GetLengthText(ise.Height);
}
private void AddSizeControl(ImageSizeElement size, string path, File file, ContentItem child)
{
if (path == null)
throw new ArgumentNullException("path");
if (file == null)
throw new ArgumentNullException("file");
if (child == null)
throw new ArgumentNullException("child");
var hl = new HyperLink { ID = size.Name + "Size" };
hl.NavigateUrl = "File.aspx?selected=" + child.Path;
hl.Text = Utility.GetResourceString("ImageSizes", size.Name + ".Text") ?? (string.IsNullOrEmpty(size.Description) ? size.Name : size.Description);
hl.Text += GetSizeText(size.Width, size.Height);
hl.CssClass = "command";
if (bgSizes == null)
throw new ArgumentNullException("bgSizes");
if (path == Selection.SelectedItem.Url)
bgSizes.Controls.AddAt(0, hl);
else
bgSizes.Controls.Add(hl);
}