/// <summary>
/// Finds the image perspective.
/// </summary>
/// <param name="photo">The photo.</param>
/// <param name="maxImageDimension">The max image dimension.</param>
/// <returns></returns>
public static ImageDimension FindImagePerspective(Bitmap photo, ImageDimension maxImageDimension)
{
ImageDimension dimension = new ImageDimension();
//determine if it's a portrait or landscape
if (photo.Height > photo.Width)
{
//portrait
decimal ratio = (photo.Width / (decimal)photo.Height);
dimension.Height = (photo.Height < maxImageDimension.Height ? photo.Height : maxImageDimension.Height);
dimension.Width = (int)(ratio * dimension.Height);
dimension.PhotoProfile = PhotoProfile.Portrait;
}
else
{
//landscape
decimal ratio = (photo.Height / (decimal)photo.Width);
dimension.Width = (photo.Width < maxImageDimension.Width ? photo.Width : maxImageDimension.Width);
dimension.Height = (int)(ratio * dimension.Width);
dimension.PhotoProfile = PhotoProfile.Landscape;
}
return dimension;
}
/// <summary>
/// Resizes the bitmap, pass in the new sizes
/// </summary>
/// <param name="bitmap">bitmap to be resized</param>
/// <param name="dimensions">The dimensions.</param>
/// <returns></returns>
public static Bitmap Resize(Bitmap bitmap, ImageDimension dimensions)
{
Bitmap result = new Bitmap(dimensions.Width, dimensions.Height);
using (Graphics graphic = Graphics.FromImage(result))
{
graphic.SmoothingMode = SmoothingMode.HighQuality;
graphic.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphic.CompositingQuality = CompositingQuality.HighQuality;
graphic.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphic.DrawImage(bitmap, 0, 0, dimensions.Width, dimensions.Height);
}
return result;
}
/// <summary>
/// Resizes the specified bitmap.
/// </summary>
/// <param name="bitmap">The bitmap.</param>
/// <param name="dimensions">The dimensions.</param>
/// <returns></returns>
public static byte[] Resize(byte[] bitmap, ImageDimension dimensions)
{
byte[] imageBytes;
Bitmap image = ConvertByteArrayToBitmap(bitmap);
image = Resize(image, dimensions);
using (MemoryStream outStream = new MemoryStream())
{
image.Save(outStream, ImageFormat.Jpeg);
outStream.Position = 0;
imageBytes = new byte[outStream.Length];
outStream.Read(imageBytes, 0, (int)outStream.Length);
}
return imageBytes;
}
/// <summary>
/// Inserts the specified photo.
/// </summary>
/// <param name="photo">The photo.</param>
/// <param name="galleryPhoto">The gallery photo.</param>
public void Insert(Photo photo, GalleryPhoto galleryPhoto)
{
GalleryPhoto adminPhotos = new GalleryPhoto();
GallerySettings settings = GallerySettings.Load();
Bitmap orginalBitmap = ImageConversion.ConvertByteArrayToBitmap(galleryPhoto.OriginalImage);
//hardcoded administration image dimensions. This will allow the user to change their image sizes and not have it effect my pretty admin layout.
ImageDimension adminThumbnailDimensions = new ImageDimension { Height = 100, Width = 100 };
ImageDimension adminFullsizeDimensions = new ImageDimension { Height = 600, Width = 600 };
adminThumbnailDimensions = FindImagePerspective(orginalBitmap, adminThumbnailDimensions);
adminFullsizeDimensions = FindImagePerspective(orginalBitmap, adminFullsizeDimensions);
//Resize the Admin images
adminPhotos.ThumbnailImage = ImageConversion.Resize(galleryPhoto.OriginalImage, adminThumbnailDimensions);
adminPhotos.DisplayImage = ImageConversion.Resize(galleryPhoto.OriginalImage, adminFullsizeDimensions);
//calculate the correct dimensions
ImageDimension thumbnailDimensions = FindImagePerspective(orginalBitmap, settings.ThumbnailDimensions);
ImageDimension fullsizeDimensions = FindImagePerspective(orginalBitmap, settings.FullsizeDimensions);
//Resize the images
galleryPhoto.ThumbnailImage = ImageConversion.Resize(galleryPhoto.OriginalImage, thumbnailDimensions);
galleryPhoto.DisplayImage = ImageConversion.Resize(galleryPhoto.OriginalImage, fullsizeDimensions);
//Set photo profile
photo.Profile = fullsizeDimensions.PhotoProfile;
//Insert new images into the Database
_resource.Insert(photo, galleryPhoto, adminPhotos);
}
/// <summary>
/// Initializes a new instance of the <see cref="GallerySettings"/> class.
/// </summary>
public GallerySettings()
{
ThumbnailDimensions = new ImageDimension();
FullsizeDimensions = new ImageDimension();
}
/// <summary>
/// Initializes a new instance of the <see cref="GallerySettings"/> class.
/// </summary>
public GallerySettings()
{
ThumbnailDimensions = new ImageDimension();
FullsizeDimensions = new ImageDimension();
}