public void WriteInfo(string info, bool showDate = false)
{
if (string.IsNullOrWhiteSpace(info))
{
return;
}
string text;
if (showDate)
{
text = $"{GetDateTime()} {info}{Environment.NewLine}";
}
else
{
text = $"[{info}]{Environment.NewLine}";
}
OnNewInfo.Invoke(this, text);
}
/// <summary>
/// Creates thumbnails for the images, wich are stored in the given source
/// </summary>
/// <param name="imageFiles">The image files</param>
/// <param name="source">The path of the source folder</param>
/// <param name="width">The width of the thumbnail</param>
/// <param name="height">The height of the thumbnail</param>
/// <param name="keepRatio">true if the user wants to keep the ratio of the image, otherwise false</param>
/// <returns>A dictionary with the image size for every image. The key is the name of the image</returns>
/// <exception cref="ArgumentNullException"/>
/// <exception cref="DirectoryNotFoundException"/>
public static Dictionary <string, ImageSize> CreateThumbnails(List <ImageModel> imageFiles, string source, int width, int height, bool keepRatio)
{
// Step 1: Check the parameters
if (!Directory.Exists(source))
{
throw new DirectoryNotFoundException("The specified source doesn't exist.");
}
var result = new Dictionary <string, ImageSize>();
// Step 2: Create Thumbnail folder
if (!CreateThumbnailFolder(source))
{
OnNewInfo?.Invoke(GlobalHelper.InfoType.Error, "Can't create thumbnail folder.");
return(result);
}
// Step 4: Itterate through the image list and create for every image a thumbnail
var count = 1;
foreach (var image in imageFiles)
{
OnProgress?.Invoke(GlobalHelper.CalculateCurrentProgress(count++, imageFiles.Count), 100);
OnNewInfo?.Invoke(GlobalHelper.InfoType.Info, $"Create thumbnail {count} of {imageFiles.Count}");
var imageSize = new ImageSize(width, height);
if (keepRatio || height == 0 && width != 0 || height != 0 && width == 0)
{
imageSize = CalculateImageSize(image.File, width, height);
}
var newImage = GlobalHelper.ResizeImage(image.File, imageSize.Width, imageSize.Height);
newImage.Save(Path.Combine(source, ThumbnailFolderName, image.File.Name));
result.Add(image.File.Name, imageSize);
}
return(result);
}
