/// <summary>
/// Initializes a new instance of the <see cref="SCSlide" /> class.
/// </summary>
internal SCSlide(
SCPresentation parentPresentation,
SlidePart slidePart,
int slideNumber)
{
this.ParentPresentation = parentPresentation;
this.SlidePart = slidePart;
this.Number = slideNumber;
this._shapes = new ResettableLazy <ShapeCollection>(() => ShapeCollection.CreateForSlide(this.SlidePart, this));
this.backgroundImage = new Lazy <SCImage>(this.TryGetBackground);
this.customXmlPart = new Lazy <CustomXmlPart>(this.GetSldCustomXmlPart);
}