119 lines
No EOL
3.9 KiB
C#
119 lines
No EOL
3.9 KiB
C#
/*
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Copyright (c) 2022, John Lewin, Lars Brubaker
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The views and conclusions contained in the software and documentation are those
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of the authors and should not be interpreted as representing official policies,
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either expressed or implied, of the FreeBSD Project.
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*/
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using System;
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using System.IO;
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using System.Threading;
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using System.Threading.Tasks;
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using MatterHackers.Agg;
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using MatterHackers.Agg.Image;
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using MatterHackers.Agg.Platform;
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using MatterHackers.DataConverters3D;
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using MatterHackers.MatterControl.Library;
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namespace MatterHackers.MatterControl.DesignTools
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{
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/// <summary>
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/// Loads IObject3D and thumbnails for ImageBuffer based ILibraryItem objects
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/// </summary>
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public class ImageContentProvider : ISceneContentProvider
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{
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public async Task<IObject3D> CreateItem(ILibraryItem item, Action<double, string> reporter)
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{
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return await Task.Run<IObject3D>(async () =>
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{
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var imageBuffer = await this.LoadImage(item);
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if (imageBuffer != null)
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{
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string assetPath = "";
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if (item is FileSystemFileItem fileItem)
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{
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assetPath = fileItem.FilePath;
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}
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else if (item is ILibraryAssetStream streamInterface)
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{
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using (var streamAndLength = await streamInterface.GetStream(null))
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{
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assetPath = await AssetObject3D.AssetManager.StoreStream(streamAndLength.Stream, Path.GetExtension(streamInterface.FileName), false, CancellationToken.None, null);
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}
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}
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return new ImageObject3D()
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{
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AssetPath = assetPath,
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Name = "Image"
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};
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}
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return null;
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});
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}
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private async Task<ImageBuffer> LoadImage(ILibraryItem item)
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{
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// Load the image at its native size, let the caller scale or resize
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if (item is ILibraryAssetStream streamInterface)
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{
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using (var streamAndLength = await streamInterface.GetStream(null))
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{
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var imageBuffer = new ImageBuffer();
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if (ImageIO.LoadImageData(streamAndLength.Stream, imageBuffer))
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{
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imageBuffer.SetRecieveBlender(new BlenderPreMultBGRA());
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return imageBuffer;
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}
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}
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}
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return null;
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}
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public Task<ImageBuffer> GetThumbnail(ILibraryItem item, int width, int height)
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{
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return Task.Run<ImageBuffer>(async () =>
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{
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var thumbnail = await LoadImage(item);
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if (thumbnail != null)
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{
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thumbnail = LibraryProviderHelpers.ResizeImage(thumbnail, width, height);
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// Cache library thumbnail
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ImageIO.SaveImageData(
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ApplicationController.Instance.Thumbnails.CachePath(item, width, height),
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thumbnail);
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}
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return thumbnail;
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});
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}
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public ImageBuffer DefaultImage => StaticData.Instance.LoadIcon("image_converter.png", 16, 16);
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}
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} |