private void GeneratedImageWithCaption(WallpaperFileImage original)
{
var fileContent = _wallpaperManager.GetFile(_wallpaper, original);
if (!fileContent.HasValue)
{
return;
}
var caption = CreateCaptions();
if (string.IsNullOrEmpty(caption))
{
return;
}
using (var image = Image.Load(fileContent.Value.Data))
using (var destStream = new MemoryStream())
{
var font = _robotoFont.CreateFont(14);
var size = TextMeasurer.Measure(caption, new RendererOptions(font));
var bounds = image.Bounds();
var start = (bounds.Width / 2) - (size.Width / 2);
var point = new PointF(start, 14);
var boxLocation = new RectangleF(point, size);
boxLocation.Inflate(4, 4);
image.Mutate(x => x.Fill(Rgba32.White, boxLocation));
image.Mutate(x => x.DrawText(caption, font, Rgba32.Black, point));
image.SaveAsPng(destStream);
var file = new WallpaperFileWithData()
{
Data = destStream.ToArray(),
FileDto = new WallpaperFileCaption
{
OriginalFileId = original.FileId,
Position = WallpaperFileCaption.WallpaperFileThumbnailPosition.Top
}
};
_wallpaperManager.AddFile(_wallpaper, file);
}
}
private void GenerateThumbnail(WallpaperFileImage original)
{
var fileContent = _wallpaperManager.GetFile(_wallpaper, original);
if (!fileContent.HasValue)
{
return;
}
using (var image = Image.Load(fileContent.Value.Data))
using (var destStream = new MemoryStream())
{
const int targetHeight = 300;
var ratio = image.Size().Height / targetHeight;
var targetSize = new Size(image.Size().Width / ratio, targetHeight);
image.Mutate(x => x.Resize(new ResizeOptions
{
Size = targetSize
}));
image.SaveAsPng(destStream);
var file = new WallpaperFileWithData()
{
Data = destStream.ToArray(),
FileDto = new WallpaperFileThumbnail
{
OriginalFileId = original.FileId,
Height = targetSize.Height,
Width = targetSize.Width
}
};
_wallpaperManager.AddFile(_wallpaper, file);
}
}
public void Handle(WallpaperFileImage wallpaperFile) => _images.Add(wallpaperFile);
