using System;
using System.Windows;
using System.Windows.Controls;

namespace HandyControl.Controls
{
    /// <summary>
    ///     用以代替Grid
    /// </summary>
    /// <remarks>
    ///     当不需要Grid的行、列分隔等功能时建议用此轻量级类代替
    /// </remarks>
    public class SimplePanel : Panel
    {
        protected override Size MeasureOverride(Size availableSize)
        {
            var maxSize = new Size();
            var children = InternalChildren;

            for (int i = 0, count = children.Count; i < count; ++i)
            {
                var child = children[i];
                if (child != null)
                {
                    child.Measure(availableSize);
                    maxSize.Width = Math.Max(maxSize.Width, child.DesiredSize.Width);
                    maxSize.Height = Math.Max(maxSize.Height, child.DesiredSize.Height);
                }
            }

            return maxSize;
        }

        protected override Size ArrangeOverride(Size arrangeSize)
        {
            foreach (UIElement child in InternalChildren)
            {
                child?.Arrange(new Rect(arrangeSize));
            }

            return arrangeSize;
        }
    }
}