260 lines
9.4 KiB
C#
260 lines
9.4 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
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//
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// This program is a free software product.
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// You can redistribute it and/or modify it under the terms
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// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
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// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
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// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
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// any third-party rights.
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//
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// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
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// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
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// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
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//
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// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
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//
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// The interactive user interfaces in modified source and object code versions of the Program must
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// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
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//
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// Pursuant to Section 7(b) of the License you must retain the original Product logo when
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// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
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// trademark law for use of our trademarks.
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//
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// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
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// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
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// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
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namespace ASC.Web.Core.Users;
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public static class UserPhotoThumbnailManager
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{
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public static async Task<List<ThumbnailItem>> SaveThumbnails(UserPhotoManager userPhotoManager, SettingsManager settingsManager, int x, int y, int width, int height, Guid userId)
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{
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return await SaveThumbnails(userPhotoManager, settingsManager, new UserPhotoThumbnailSettings(x, y, width, height), userId);
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}
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public static async Task<List<ThumbnailItem>> SaveThumbnails(UserPhotoManager userPhotoManager, SettingsManager settingsManager, Point point, Size size, Guid userId)
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{
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return await SaveThumbnails(userPhotoManager, settingsManager, new UserPhotoThumbnailSettings(point, size), userId);
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}
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public static async Task<List<ThumbnailItem>> SaveThumbnails(UserPhotoManager userPhotoManager, SettingsManager settingsManager, UserPhotoThumbnailSettings thumbnailSettings, Guid userId)
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{
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if (thumbnailSettings.Size.IsEmpty)
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{
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return null;
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}
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var thumbnailsData = new ThumbnailsData(userId, userPhotoManager);
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var resultBitmaps = new List<ThumbnailItem>();
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using var img = thumbnailsData.MainImgBitmap(out var format);
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if (img == null)
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{
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return null;
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}
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foreach (var thumbnail in await thumbnailsData.ThumbnailList())
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{
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thumbnail.Image = GetImage(img, thumbnail.Size, thumbnailSettings);
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resultBitmaps.Add(thumbnail);
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}
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await thumbnailsData.Save(resultBitmaps);
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settingsManager.SaveForUser(thumbnailSettings, userId);
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return await thumbnailsData.ThumbnailList();
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}
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public static Image GetImage(Image mainImg, Size size, UserPhotoThumbnailSettings thumbnailSettings)
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{
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var x = thumbnailSettings.Point.X > 0 ? thumbnailSettings.Point.X : 0;
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var y = thumbnailSettings.Point.Y > 0 ? thumbnailSettings.Point.Y : 0;
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var width = x + thumbnailSettings.Size.Width > mainImg.Width ? mainImg.Width : thumbnailSettings.Size.Width;
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var height = y + thumbnailSettings.Size.Height > mainImg.Height ? mainImg.Height : thumbnailSettings.Size.Height;
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var rect = new Rectangle(x,
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y,
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width,
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height);
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var result = mainImg.Clone(x => x.BackgroundColor(Color.White).Crop(rect).Resize(new ResizeOptions
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{
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Size = size
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}));
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return result;
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}
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public static void CheckImgFormat(byte[] data)
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{
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IImageFormat imgFormat;
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try
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{
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using var img = Image.Load(data, out var format);
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imgFormat = format;
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}
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catch (OutOfMemoryException)
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{
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throw new ImageSizeLimitException();
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}
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catch (ArgumentException error)
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{
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throw new UnknownImageFormatException(error);
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}
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if (imgFormat.Name != "PNG" && imgFormat.Name != "JPEG")
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{
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throw new UnknownImageFormatException();
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}
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}
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public static byte[] TryParseImage(byte[] data, long maxFileSize, Size maxsize, out IImageFormat imgFormat, out int width, out int height)
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{
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if (data == null || data.Length <= 0)
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{
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throw new UnknownImageFormatException();
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}
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if (maxFileSize != -1 && data.Length > maxFileSize)
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{
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throw new ImageSizeLimitException();
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}
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//data = ImageHelper.RotateImageByExifOrientationData(data, Log);
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try
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{
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using var img = Image.Load(data, out var format);
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imgFormat = format;
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width = img.Width;
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height = img.Height;
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var maxWidth = maxsize.Width;
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var maxHeight = maxsize.Height;
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if ((maxHeight != -1 && img.Height > maxHeight) || (maxWidth != -1 && img.Width > maxWidth))
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{
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#region calulate height and width
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if (width > maxWidth && height > maxHeight)
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{
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if (width > height)
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{
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height = (int)(height * (double)maxWidth / width + 0.5);
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width = maxWidth;
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}
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else
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{
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width = (int)(width * (double)maxHeight / height + 0.5);
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height = maxHeight;
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}
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}
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if (width > maxWidth && height <= maxHeight)
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{
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height = (int)(height * (double)maxWidth / width + 0.5);
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width = maxWidth;
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}
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if (width <= maxWidth && height > maxHeight)
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{
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width = (int)(width * (double)maxHeight / height + 0.5);
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height = maxHeight;
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}
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var tmpW = width;
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var tmpH = height;
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#endregion
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using var destRound = img.Clone(x => x.Resize(new ResizeOptions
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{
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Size = new Size(tmpW, tmpH),
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Mode = ResizeMode.Stretch
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}));
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data = CommonPhotoManager.SaveToBytes(destRound);
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}
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return data;
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}
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catch (OutOfMemoryException)
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{
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throw new ImageSizeLimitException();
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}
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catch (ArgumentException error)
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{
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throw new UnknownImageFormatException(error);
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}
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}
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}
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public class ThumbnailItem
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{
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public Size Size { get; set; }
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public string ImgUrl { get; set; }
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public Image Image { get; set; }
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}
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public class ThumbnailsData
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{
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private readonly Guid _userId;
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private readonly UserPhotoManager _userPhotoManager;
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public ThumbnailsData(Guid userId, UserPhotoManager userPhotoManager)
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{
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_userId = userId;
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_userPhotoManager = userPhotoManager;
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}
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public Image MainImgBitmap(out IImageFormat format)
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{
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var img = _userPhotoManager.GetPhotoImage(_userId, out var imageFormat);
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format = imageFormat;
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return img;
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}
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public async Task<List<ThumbnailItem>> ThumbnailList()
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{
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return new List<ThumbnailItem>
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{
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new ThumbnailItem
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{
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Size = UserPhotoManager.RetinaFotoSize,
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ImgUrl = await _userPhotoManager.GetRetinaPhotoURL(_userId)
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},
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new ThumbnailItem
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{
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Size = UserPhotoManager.MaxFotoSize,
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ImgUrl = await _userPhotoManager.GetMaxPhotoURL(_userId)
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},
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new ThumbnailItem
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{
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Size = UserPhotoManager.BigFotoSize,
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ImgUrl = await _userPhotoManager.GetBigPhotoURL(_userId)
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},
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new ThumbnailItem
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{
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Size = UserPhotoManager.MediumFotoSize,
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ImgUrl = await _userPhotoManager.GetMediumPhotoURL(_userId)
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},
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new ThumbnailItem
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{
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Size = UserPhotoManager.SmallFotoSize,
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ImgUrl = await _userPhotoManager.GetSmallPhotoURL(_userId)
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}
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};
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}
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public async Task Save(List<ThumbnailItem> bitmaps)
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{
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foreach (var item in bitmaps)
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{
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using var mainImgBitmap = MainImgBitmap(out var format);
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await _userPhotoManager.SaveThumbnail(_userId, item.Image, format);
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}
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}
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}
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