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using MediaBrowser.Model.Dto;
using MediaBrowser.Model.Entities;
using MediaBrowser.Model.Net;
using System;
using System.Linq;
using System.Windows.Media.Imaging;
namespace MediaBrowser.UI.ViewModels
{
/// <summary>
/// Class ChapterInfoDtoViewModel
/// </summary>
public class ChapterInfoDtoViewModel : BaseViewModel
{
/// <summary>
/// Gets or sets the image download options.
/// </summary>
/// <value>The image download options.</value>
public ImageOptions ImageDownloadOptions { get; set; }
/// <summary>
/// The _image width
/// </summary>
private double _imageWidth;
/// <summary>
/// Gets or sets the width of the image.
/// </summary>
/// <value>The width of the image.</value>
public double ImageWidth
{
get { return _imageWidth; }
set
{
_imageWidth = value;
OnPropertyChanged("ImageWidth");
}
}
/// <summary>
/// The _image height
/// </summary>
private double _imageHeight;
/// <summary>
/// Gets or sets the height of the image.
/// </summary>
/// <value>The height of the image.</value>
public double ImageHeight
{
get { return _imageHeight; }
set
{
_imageHeight = value;
OnPropertyChanged("ImageHeight");
}
}
/// <summary>
/// The _item
/// </summary>
private ChapterInfoDto _chapter;
/// <summary>
/// Gets or sets the item.
/// </summary>
/// <value>The item.</value>
public ChapterInfoDto Chapter
{
get { return _chapter; }
set
{
_chapter = value;
OnPropertyChanged("Chapter");
OnPropertyChanged("TimeString");
OnChapterChanged();
}
}
/// <summary>
/// The _item
/// </summary>
private BaseItemDto _item;
/// <summary>
/// Gets or sets the item.
/// </summary>
/// <value>The item.</value>
public BaseItemDto Item
{
get { return _item; }
set
{
_item = value;
OnPropertyChanged("Item");
}
}
/// <summary>
/// Gets the time string.
/// </summary>
/// <value>The time string.</value>
public string TimeString
{
get
{
var time = TimeSpan.FromTicks(Chapter.StartPositionTicks);
return time.ToString(time.TotalHours < 1 ? "m':'ss" : "h':'mm':'ss");
}
}
/// <summary>
/// The _image
/// </summary>
private BitmapImage _image;
/// <summary>
/// Gets the image.
/// </summary>
/// <value>The image.</value>
public BitmapImage Image
{
get { return _image; }
set
{
_image = value;
OnPropertyChanged("Image");
}
}
/// <summary>
/// Called when [item changed].
/// </summary>
private async void OnChapterChanged()
{
var options = ImageDownloadOptions ?? new ImageOptions { };
options.ImageType = ImageType.ChapterImage;
options.ImageIndex = Item.Chapters.IndexOf(Chapter);
try
{
Image = await App.Instance.GetRemoteBitmapAsync(App.Instance.ApiClient.GetImageUrl(Item, options));
}
catch (HttpException)
{
}
}
/// <summary>
/// Gets the height of the chapter image.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="height">The height.</param>
/// <param name="defaultWidth">The default width.</param>
/// <returns>System.Double.</returns>
public static double GetChapterImageWidth(BaseItemDto item, double height, double defaultWidth)
{
var width = defaultWidth;
if (item.MediaStreams != null)
{
var videoStream = item.MediaStreams.FirstOrDefault(s => s.Type == MediaStreamType.Video);
if (videoStream != null)
{
double streamHeight = videoStream.Height ?? 0;
double streamWidth = videoStream.Width ?? 0;
if (streamHeight > 0 && streamWidth > 0)
{
var aspectRatio = streamWidth / streamHeight;
width = height * aspectRatio;
}
}
}
return width;
}
}
}
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