/// <summary>
/// restores image from file, if it is not already in memory
/// </summary>
public void ensureImageExists()
{
if (this.image != null)
{
return;
}
if (this.imageSourceIsLocal)
{
Image img = bitmapFromFileOrZipfile(m_imageFileName);
this.image = img;
}
else
{
// get it from the gallery
try
{
this.image = ImageCache.getImage(this.imageUrl, false);
}
// An invalid image will throw an OutOfMemoryException
// exception
catch (OutOfMemoryException)
{
throw new InvalidOperationException("'" + this.imageUrl + "' could not deliver a valid image file.");
}
}
}
public void ensureOriginalImageExists()
{
// for local images do nothing if image is attached:
if (this.imageSourceIsLocal && this.image != null)
{
return;
}
if (this.imageSourceIsLocal)
{
// local image, use local rule:
ensureImageExists();
}
else
{
// get original image from the gallery
string originalImageUrl = this.imageSource;
try
{
Image orgImage = ImageCache.getImage(originalImageUrl, false);
releaseImage(); // make sure we nicely get rid of existing image
this.image = orgImage;
}
// An invalid image will throw an OutOfMemoryException
// exception
catch (OutOfMemoryException)
{
throw new InvalidOperationException("'" + originalImageUrl + "' could not deliver a valid original image file.");
}
}
}
public static PhotoDescr FromSmugmugPhotoGallery(string imageName, Hashtable _imageUrls, Hashtable imageExif)
{
PhotoDescr ret = new PhotoDescr();
ret.imageName = imageName;
try
{
string sTime = "" + imageExif["DateTimeOriginal"]; // "2003:08:05 20:12:23"
string[] split = sTime.Split(new Char[] { ' ' });
sTime = split[0].Replace(":", "/") + " " + split[1];
ret.DTOrig = Convert.ToDateTime(sTime); // local, how time in the camera is set
}
catch (Exception)
{
}
// TinyURL: http://heysmile.smugmug.com/photos/24096277-Ti.jpg
// MediumURL: http://heysmile.smugmug.com/photos/24096277-M.jpg
// ThumbURL: http://heysmile.smugmug.com/photos/24096277-Th.jpg
// AlbumURL: http://heysmile.smugmug.com/gallery/576522/1/24096277
// SmallURL: http://heysmile.smugmug.com/photos/24096277-S.jpg
// LargeURL: http://heysmile.smugmug.com/photos/24096277-L.jpg
// OriginalURL: http://heysmile.smugmug.com/photos/24096277-O.jpg
ret.imageUrls = new Hashtable(_imageUrls); // make a local copy
string thumbUrl = "" + ret.imageUrls["ThumbURL"];
// Create an Image object from the thumbnail URL.
// string fileName = "C:\\temp\\aaa.jpg";
// Image img = null;
try
{
ImageCache.getImage(thumbUrl, true);
// ret.Width = img.Width;
// ret.Height = img.Height;
// ret.image = img;
m_photoDescrByThumbnailUrl[thumbUrl] = ret;
}
// An invalid image will throw an OutOfMemoryException
// exception
catch (OutOfMemoryException)
{
throw new InvalidOperationException("'" + ret.imageUrls["OriginalURL"] + "' is not a valid and accessible gallery image.");
}
return(ret);
}
public static Image rebuildThumbnailImage(string thumbSource)
{
Image ret = null;
if (thumbSource.ToLower().StartsWith("http://"))
{
// a gallery, and actual URL of the thumbnail
ret = ImageCache.getImage(thumbSource, true);
}
else
{
// local file, containing large image.
PhotoDescr pd = PhotoDescr.FromFileOrZipEntry(null, null, thumbSource, "none");
float imageRatio = (float)pd.image.Width / (float)pd.image.Height;
float panelRatio = (float)Project.thumbWidth / (float)Project.thumbHeight;
int thumbWidth;
int thumbHeight;
if (imageRatio > panelRatio) // image wider
{
thumbWidth = Project.thumbWidth;
thumbHeight = (int)(thumbWidth / imageRatio);
}
else
{
thumbHeight = Project.thumbHeight;
thumbWidth = (int)(thumbHeight * imageRatio);
}
// make a thumbnail bitmap:
Bitmap thumb = new Bitmap(pd.image, new Size(thumbWidth, thumbHeight));
// the following produces ugly big unfocused thumbnail, so we stay with Bitmap for now:
//Image thumb = photoDescr.image.GetThumbnailImage(Project.thumbWidth, Project.thumbHeight, null, IntPtr.Zero);
// rotate thumbnail based on photoDescr.Orientation.
switch (pd.Orientation)
{
// see PhotoDescr.cs for EXIF orientation codes:
case 4:
thumb.RotateFlip(RotateFlipType.Rotate180FlipNone);
break;
case 8:
thumb.RotateFlip(RotateFlipType.Rotate270FlipNone);
break;
case 6:
thumb.RotateFlip(RotateFlipType.Rotate90FlipNone);
break;
}
if (thumbSource.IndexOf("|") != -1)
{
ImageCache.putImage(thumb, thumbSource, null, true); // zipfile - putImage() will generate local temp file
}
else
{
ImageCache.putImage(thumb, thumbSource, thumbSource, true);
}
ret = thumb;
pd.releaseImage();
}
return(ret);
}
