File: System\Windows\Forms\Controls\ToolStrips\ToolStripDropDownMenu.ToolStripDropDownLayoutEngine.cs
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Project: src\src\System.Windows.Forms\src\System.Windows.Forms.csproj (System.Windows.Forms)
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Drawing;
using System.Windows.Forms.Layout;
 
namespace System.Windows.Forms;
 
public partial class ToolStripDropDownMenu
{
    internal sealed class ToolStripDropDownLayoutEngine : FlowLayout
    {
        public static ToolStripDropDownLayoutEngine LayoutInstance = new();
 
        internal override Size GetPreferredSize(IArrangedElement container, Size proposedConstraints)
        {
            Size preferredSize = base.GetPreferredSize(container, proposedConstraints);
            if (container is ToolStripDropDownMenu dropDownMenu)
            {
                preferredSize.Width = dropDownMenu.MaxItemSize.Width - dropDownMenu.PaddingToTrim;
            }
 
            return preferredSize;
        }
    }
}