109 lines
3.9 KiB
C#
109 lines
3.9 KiB
C#
namespace Umbraco.Web
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{
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.Linq;
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using System.Text;
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using Newtonsoft.Json;
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using Umbraco.Core;
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using Umbraco.Core.Logging;
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using Umbraco.Web.Models;
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internal static class ImageCropperBaseExtensions
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{
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internal static ImageCropData GetImageCrop(this string json, string id)
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{
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var ic = new ImageCropData();
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if (json.DetectIsJson())
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{
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try
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{
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var imageCropperSettings = JsonConvert.DeserializeObject<List<ImageCropData>>(json);
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ic = imageCropperSettings.GetCrop(id);
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}
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catch (Exception ex)
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{
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LogHelper.Error(typeof(ImageCropperBaseExtensions), "Could not parse the json string: " + json, ex);
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}
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}
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return ic;
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}
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internal static ImageCropDataSet SerializeToCropDataSet(this string json)
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{
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var imageCrops = new ImageCropDataSet();
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if (json.DetectIsJson())
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{
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try
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{
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imageCrops = JsonConvert.DeserializeObject<ImageCropDataSet>(json);
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}
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catch (Exception ex)
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{
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LogHelper.Error(typeof(ImageCropperBaseExtensions), "Could not parse the json string: " + json, ex);
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}
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}
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return imageCrops;
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}
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internal static ImageCropData GetCrop(this ImageCropDataSet dataset, string cropAlias)
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{
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if (dataset == null || dataset.Crops == null || !dataset.Crops.Any())
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return null;
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return dataset.Crops.GetCrop(cropAlias);
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}
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internal static ImageCropData GetCrop(this IEnumerable<ImageCropData> dataset, string cropAlias)
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{
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if (dataset == null || !dataset.Any())
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return null;
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if (string.IsNullOrEmpty(cropAlias))
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return dataset.FirstOrDefault();
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return dataset.FirstOrDefault(x => x.Alias.ToLowerInvariant() == cropAlias.ToLowerInvariant());
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}
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internal static string GetCropBaseUrl(this ImageCropDataSet cropDataSet, string cropAlias, bool preferFocalPoint)
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{
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var cropUrl = new StringBuilder();
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var crop = cropDataSet.GetCrop(cropAlias);
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// if crop alias has been specified but not found in the Json we should return null
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if (string.IsNullOrEmpty(cropAlias) == false && crop == null)
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{
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return null;
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}
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if ((preferFocalPoint && cropDataSet.HasFocalPoint()) || (crop != null && crop.Coordinates == null && cropDataSet.HasFocalPoint()) || (string.IsNullOrEmpty(cropAlias) && cropDataSet.HasFocalPoint()))
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{
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cropUrl.Append("?center=" + cropDataSet.FocalPoint.Top.ToString(CultureInfo.InvariantCulture) + "," + cropDataSet.FocalPoint.Left.ToString(CultureInfo.InvariantCulture));
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cropUrl.Append("&mode=crop");
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}
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else if (crop != null && crop.Coordinates != null && preferFocalPoint == false)
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{
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cropUrl.Append("?crop=");
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cropUrl.Append(crop.Coordinates.X1.ToString(CultureInfo.InvariantCulture)).Append(",");
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cropUrl.Append(crop.Coordinates.Y1.ToString(CultureInfo.InvariantCulture)).Append(",");
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cropUrl.Append(crop.Coordinates.X2.ToString(CultureInfo.InvariantCulture)).Append(",");
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cropUrl.Append(crop.Coordinates.Y2.ToString(CultureInfo.InvariantCulture));
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cropUrl.Append("&cropmode=percentage");
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}
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else
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{
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cropUrl.Append("?anchor=center");
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cropUrl.Append("&mode=crop");
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}
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return cropUrl.ToString();
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}
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}
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}
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