kev/Drawer/UCDraw/PcgDrawR_wellPole/WellWorkDataUI/frmExportWells.cs

using DevExpress.XtraEditors.Controls;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

namespace WellWorkDataUI.CustomControls
{
    public partial class frmExportWells : DevExpress.XtraEditors.XtraForm
    {
        public frmExportWells(List<string> wells)
        {
            this.InitializeComponent();

            // 启用双缓冲，减少闪烁
            this.SetDoubleBuffered(this.flowWellsPanel);
            this.SetDoubleBuffered(this);  // 也可以为整个窗体启用双缓冲
            this.flowWellsPanel.Padding = new Padding(10);

            // 添加 CheckBox 控件
            foreach (var well in wells)
            {
                CheckBox check = new CheckBox();
                check.Text = well;
                check.BackColor = Color.Transparent;
                check.Margin = new Padding(10);
                this.flowWellsPanel.Controls.Add(check);
            }

            // 鼠标选择区域的事件
            this.flowWellsPanel.MouseDown += this.FlowPanel_MouseDown;
            this.flowWellsPanel.MouseMove += this.FlowPanel_MouseMove;
            this.flowWellsPanel.MouseUp += this.FlowPanel_MouseUp;

            // 确保 FlowLayoutPanel 支持绘制
            this.flowWellsPanel.Paint += this.FlowLayoutPanel_Paint;
        }

        public List<string> SelectedWells = new List<string>();

        private bool isSelecting = false;
        private Point selectionStart;
        private Rectangle selectionRect = Rectangle.Empty;

        // MouseDown 事件
        private void FlowPanel_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                this.isSelecting = true;
                this.selectionStart = e.Location;
                this.selectionRect = new Rectangle(e.Location, Size.Empty);
                this.flowWellsPanel.Invalidate(); // 强制重绘 FlowLayoutPanel
            }
        }

        // MouseMove 事件
        private void FlowPanel_MouseMove(object sender, MouseEventArgs e)
        {
            if (this.isSelecting)
            {
                // 更新选择区域
                this.selectionRect = new Rectangle(
                    Math.Min(this.selectionStart.X, e.X),
                    Math.Min(this.selectionStart.Y, e.Y),
                    Math.Abs(e.X - this.selectionStart.X),
                    Math.Abs(e.Y - this.selectionStart.Y));

                this.flowWellsPanel.Invalidate(); // 强制重绘 FlowLayoutPanel
            }
        }

        // MouseUp 事件
        private void FlowPanel_MouseUp(object sender, MouseEventArgs e)
        {
            if (this.isSelecting)
            {
                this.isSelecting = false;
                // 对每个井项控件进行检测，若其 Bounds 与 selectionRect 有交集，则勾选该 CheckBox
                foreach (Control ctrl in this.flowWellsPanel.Controls)
                {
                    if (ctrl is CheckBox checkBox)
                    {
                        Rectangle ctrlRect = ctrl.Bounds;
                        if (this.selectionRect.IntersectsWith(ctrlRect))
                        {
                            // 勾选该 CheckBox
                            checkBox.Checked = !checkBox.Checked;
                        }
                    }
                }
                this.selectionRect = Rectangle.Empty;
                this.flowWellsPanel.Invalidate(); // 清除选择区域
            }
        }


        // 设置双缓冲
        private void SetDoubleBuffered(Control control)
        {
            var propertyInfo = control.GetType().GetProperty("DoubleBuffered", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
            if (propertyInfo != null)
            {
                propertyInfo.SetValue(control, true);
            }
        }

        // 处理 FlowLayoutPanel 的绘制事件
        private void FlowLayoutPanel_Paint(object sender, PaintEventArgs e)
        {
            if (this.selectionRect != Rectangle.Empty)
            {
                // 绘制选择框
                using (Brush b = new SolidBrush(Color.FromArgb(50, Color.Transparent)))
                {
                    e.Graphics.FillRectangle(b, this.selectionRect); // 填充选择区域
                }

                using (Pen p = new Pen(Color.Gray, 2))
                {
                    p.DashStyle = System.Drawing.Drawing2D.DashStyle.Dash; // 设置虚线样式
                    e.Graphics.DrawRectangle(p, this.selectionRect); // 绘制选择区域边框
                }
            }
        }

        private void cancelButton_Click(object sender, EventArgs e)
        {
            this.DialogResult = DialogResult.Cancel;
            this.Close();
        }

        private void selectAllButton_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            foreach (Control ctrl in this.flowWellsPanel.Controls)
            {
                if (ctrl is CheckBox checkBox)
                {
                    checkBox.Checked = true;
                }
            }
        }

        private void reverseAllButton_ItemClick(object sender, DevExpress.XtraBars.ItemClickEventArgs e)
        {
            foreach (Control ctrl in this.flowWellsPanel.Controls)
            {
                if (ctrl is CheckBox checkBox)
                {
                    checkBox.Checked = !checkBox.Checked;
                }
            }
        }

        private void repositoryItemSearchControl1_ButtonClick(object sender, ButtonPressedEventArgs e)
        {
            this.onSearchControl_Search();
        }

        private void repositoryItemSearchControl1_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyCode == Keys.Enter)
            {
                this.onSearchControl_Search();
            }
        }

        private void onSearchControl_Search()
        {
            using (SplashHelper splash = SplashHelper.Create())
            {
                SplashHelper.SetCaption("正在搜索");
                try
                {
                    string keyword = this.barManager1.ActiveEditor.EditValue?.ToString();
                    if (!string.IsNullOrEmpty(keyword))
                    {
                        foreach (Control ctrl in this.flowWellsPanel.Controls)
                        {
                            if (ctrl is CheckBox checkBox)
                            {
                                // 检查文本是否包含搜索关键词
                                if (checkBox.Text.Contains(keyword))
                                {
                                    checkBox.Visible = true;  // 显示匹配的 CheckBox
                                }
                                else
                                {
                                    checkBox.Visible = false; // 隐藏不匹配的 CheckBox
                                }
                            }
                        }
                    }
                    else
                    {
                        // 如果搜索框为空，显示所有的 CheckBox
                        foreach (Control ctrl in this.flowWellsPanel.Controls)
                        {
                            if (ctrl is CheckBox checkBox)
                            {
                                checkBox.Visible = true;
                            }
                        }
                    }
                }
                catch (Exception ex)
                {
                }
            }
        }

        private void exportButton_Click(object sender, EventArgs e)
        {
            foreach (Control ctrl in this.flowWellsPanel.Controls)
            {
                if (ctrl is CheckBox checkBox && checkBox.Checked)
                {
                    SelectedWells.Add(checkBox.Text);
                }
            }

            if (SelectedWells.Count == 0)
            {
                MessageBox.Show("请选择需要导出的井号！", "提示");
                return;
            }

            this.DialogResult = DialogResult.OK;
        }
    }
}