AutoPatientInfoRecorder/src/AntdUI/Controls/In/FlowLayoutPanel.cs

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// COPYRIGHT (C) Tom. ALL RIGHTS RESERVED.
// THE AntdUI PROJECT IS AN WINFORM LIBRARY LICENSED UNDER THE Apache-2.0 License.
// LICENSED UNDER THE Apache License, VERSION 2.0 (THE "License")
// YOU MAY NOT USE THIS FILE EXCEPT IN COMPLIANCE WITH THE License.
// YOU MAY OBTAIN A COPY OF THE LICENSE AT
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING, SOFTWARE
// DISTRIBUTED UNDER THE LICENSE IS DISTRIBUTED ON AN "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
// SEE THE LICENSE FOR THE SPECIFIC LANGUAGE GOVERNING PERMISSIONS AND
// LIMITATIONS UNDER THE License.
// GITEE: https://gitee.com/antdui/AntdUI
// GITHUB: https://github.com/AntdUI/AntdUI
// CSDN: https://blog.csdn.net/v_132
// QQ: 17379620

using System;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace AntdUI.In
{
    public class FlowLayoutPanel : System.Windows.Forms.FlowLayoutPanel
    {
        ScrollY scrollY;
        public FlowLayoutPanel()
        {
            SetStyle(
                ControlStyles.Selectable |
                ControlStyles.AllPaintingInWmPaint |
                ControlStyles.OptimizedDoubleBuffer |
                ControlStyles.DoubleBuffer |
                ControlStyles.ResizeRedraw |
                ControlStyles.ContainerControl |
                ControlStyles.UserPaint, true);
            UpdateStyles();
            scrollY = new ScrollY(this);
        }

        #region 只为了隐藏滚动条

        #region 滚动条状态

        bool scrollYVisible = false;
        bool ScrollYVisible
        {
            get => scrollYVisible;
            set
            {
                if (scrollYVisible == value) return;
                scrollYVisible = value;
                if (!value) scrollY.SetVrSize(0, 0);
                OnSizeChanged(EventArgs.Empty);
            }
        }
        public override Rectangle DisplayRectangle
        {