/// <summary>
/// Set a seed for this list. Subsequent <see cref="SmartRect{T}"/> created with <see cref="GetWorkingSmartRect(Func{T, bool}, float, float)"/>
/// will use <paramref name="seed"/> as a template.
/// </summary>
/// <param name="seed"> Template for subsequent <see cref="SmartRect{T}"/>. </param>
public void Init(SmartRect <T> seed)
{
ValidateArg.NotNull(seed, nameof(seed));
_seed = seed;
_seed.List = this;
this.SmartRects.Add(seed);
}
/// <summary>
/// Return a new <see cref="SmartRect{T}"/> that shares the same template with the <see cref="SmartRect{T}"/> that seeds this list.
/// </summary>
/// <param name="selector"> Defines on which level this smart rect is on. </param>
/// <param name="xLeftCurPosition"> The left most coordinate of allocated rects. </param>
/// <param name="xRightCurPosition"> The right most coordinate of allocated rects. </param>
/// <returns> A <see cref="SmartRect{T}"/>. </returns>
public SmartRect <T> GetWorkingSmartRect(Func <T, bool> selector, float xLeftCurPosition, float xRightCurPosition)
{
SmartRect <T> tail = this.SmartRects.Last();
Rect newRect = new Rect(tail.RectTemplate);
newRect.y += tail.HeightGap + tail.Height;
SmartRect <T> smartRect = new SmartRect <T>(
newRect, selector, xLeftCurPosition, xRightCurPosition, this, _seed.XLeftEdge, _seed.XRightEdge);
this.SmartRects.Add(smartRect);
return(smartRect);
}
