/// <summary>
/// Retrieves the width, height and aspect ratio of a media item.
/// Returns 0 for both if either of the properties are missing.
/// </summary>
public static MediaSize GetMediaSize(IPublishedContent media, int newWidth = 0)
{
var result = new MediaSize {
Width = 0, Height = 0, Ratio = 1.0M
};
if (media.HasProperty("UmbracoWidth") && media.HasProperty("UmbracoHeight"))
{
var mediaWidth = media.Value <int>("UmbracoWidth");
var mediaHeight = media.Value <int>("UmbracoHeight");
var mediaRatio = Decimal.Divide(mediaHeight, mediaWidth);
result.Width = newWidth > 0 ? newWidth : mediaWidth;
result.Height = newWidth > 0 ? (int)(newWidth * mediaRatio) : mediaHeight;
result.Ratio = mediaRatio;
}
return(result);
}
/// <summary>
/// Retrieves the width, height and aspect ratio of a specific crop.
/// </summary>
public static MediaSize GetCropSize(IPublishedContent media, string crop, int newWidth = 0)
{
var result = new MediaSize {
Width = 0, Height = 0, Ratio = 1.0M
};
var cropperValue = media.Value <ImageCropperValue>("UmbracoFile");
var cropData = cropperValue != null?cropperValue.GetCrop(crop) : null;
if (cropData != null)
{
var cropWidth = cropData.Width;
var cropHeight = cropData.Height;
var cropRatio = Decimal.Divide(cropHeight, cropWidth);
result.Width = newWidth > 0 ? newWidth : cropWidth;
result.Height = newWidth > 0 ? (int)(newWidth * cropRatio) : cropHeight;
result.Ratio = cropRatio;
}
return(result);
}
private static string GetOutputTag(string size1x, string size2x, string altText, MediaSize sizes)
{
return(string.Format("<img srcset=\"{0} 2x\" src=\"{1}\" width=\"{3}\" height=\"{4}\" alt=\"{2}\" />", size2x, size1x, altText, sizes.Width, sizes.Height));
}
private static string GetOutputTag(string image, string altText, MediaSize sizes)
{
return(string.Format("<img src=\"{0}\" width=\"{2}\" height=\"{3}\" alt=\"{1}\" />", image, altText, sizes.Width, sizes.Height));
}