/// <summary>
/// Calculates the max count of visible items.
/// </summary>
protected override void CalculateMaxVisibleItems()
{
var spacing = LayoutBridge.GetSpacing();
if (IsHorizontal())
{
var height = scrollHeight + spacing - LayoutBridge.GetFullMargin();
itemsPerRow = Mathf.CeilToInt(scrollWidth / itemWidth) + 1;
itemsPerRow = Mathf.Max(2, itemsPerRow);
itemsPerColumn = Mathf.FloorToInt(height / (itemHeight + spacing));
itemsPerColumn = Mathf.Max(1, itemsPerColumn);
}
else
{
var width = scrollWidth + spacing - LayoutBridge.GetFullMargin();
itemsPerRow = Mathf.FloorToInt(width / (itemWidth + spacing));
itemsPerRow = Mathf.Max(1, itemsPerRow);
itemsPerColumn = Mathf.CeilToInt(scrollHeight / itemHeight) + 1;
itemsPerColumn = Mathf.Max(2, itemsPerColumn);
}
maxVisibleItems = itemsPerRow * itemsPerColumn;
}
/// <summary>
/// Gets the item position bottom.
/// </summary>
/// <returns>The item position bottom.</returns>
/// <param name="index">Index.</param>
public override float GetItemPositionBottom(int index)
{
return(GetItemPosition(index) + GetItemHeight(DataSource[index]) + LayoutBridge.GetFullMargin() - GetScrollSize());
}