74 lines
2.6 KiB
C#
74 lines
2.6 KiB
C#
using System;
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using MediaBrowser.Controller.Entities;
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using MediaBrowser.Model.Drawing;
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using MediaBrowser.Model.Entities;
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namespace MediaBrowser.Controller.Drawing
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{
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public static class ImageHelper
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{
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public static ImageDimensions GetNewImageSize(ImageProcessingOptions options, ImageDimensions? originalImageSize)
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{
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if (originalImageSize.HasValue)
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{
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// Determine the output size based on incoming parameters
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var newSize = DrawingUtils.Resize(originalImageSize.Value, options.Width ?? 0, options.Height ?? 0, options.MaxWidth ?? 0, options.MaxHeight ?? 0);
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return newSize;
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}
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return GetSizeEstimate(options);
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}
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private static ImageDimensions GetSizeEstimate(ImageProcessingOptions options)
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{
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if (options.Width.HasValue && options.Height.HasValue)
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{
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return new ImageDimensions(options.Width.Value, options.Height.Value);
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}
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double aspect = GetEstimatedAspectRatio(options.Image.Type, options.Item);
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int? width = options.Width ?? options.MaxWidth;
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if (width.HasValue)
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{
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int heightValue = Convert.ToInt32((double)width.Value / aspect);
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return new ImageDimensions(width.Value, heightValue);
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}
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var height = options.Height ?? options.MaxHeight ?? 200;
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int widthValue = Convert.ToInt32(aspect * height);
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return new ImageDimensions(widthValue, height);
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}
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private static double GetEstimatedAspectRatio(ImageType type, BaseItem item)
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{
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switch (type)
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{
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case ImageType.Art:
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case ImageType.Backdrop:
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case ImageType.Chapter:
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case ImageType.Screenshot:
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case ImageType.Thumb:
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return 1.78;
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case ImageType.Banner:
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return 5.4;
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case ImageType.Box:
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case ImageType.BoxRear:
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case ImageType.Disc:
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case ImageType.Menu:
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case ImageType.Profile:
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return 1;
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case ImageType.Logo:
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return 2.58;
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case ImageType.Primary:
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double defaultPrimaryImageAspectRatio = item.GetDefaultPrimaryImageAspectRatio();
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return defaultPrimaryImageAspectRatio > 0 ? defaultPrimaryImageAspectRatio : 2.0 / 3;
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default:
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return 1;
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}
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}
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}
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}
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