using DevExpress.XtraBars.Docking;
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using DevExpress.XtraEditors;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace Gs.DevApp.DevFrm
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{
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public partial class XtraForm1 : DevExpress.XtraEditors.XtraForm
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{
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private bool isDragging = false;
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private Point dragCursorPoint;
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private Point dragPanelPoint;
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private Control dragSourceContainer;
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public XtraForm1()
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{
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InitializeComponent();
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// 初始化表单
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this.Text = "Draggable Panel Example";
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this.Size = new Size(800, 600);
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// 添加鼠标事件处理程序
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// 遍历 parentPanel 中的所有子控件
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foreach (Control control in panelControl1.Controls)
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{
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// 检查当前控件是否是一个 Panel
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if (control is PanelControl panel)
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{
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// 在这里对子 Panel 执行操作
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// 例如，打印出子 Panel 的名字（如果有设置 Name 属性）
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Console.WriteLine(panel.Name ?? "无名Panel");
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// 或者你可以调用其他方法，传递这个 panel 作为参数
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// SomeMethod(panel);
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control.MouseDown += new MouseEventHandler(DraggablePanel_MouseDown);
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control.MouseMove += new MouseEventHandler(DraggablePanel_MouseMove);
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control.MouseUp += new MouseEventHandler(DraggablePanel_MouseUp);
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}
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}
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}
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private void DraggablePanel_MouseDown(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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// 从事件参数 DragEventArgs 中获取被拖动的元素
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PanelControl _soucePanel = (PanelControl)sender;
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isDragging = true;
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dragCursorPoint = Cursor.Position;
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dragPanelPoint = _soucePanel.Location;
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_soucePanel.Cursor = Cursors.SizeAll;
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dragSourceContainer = _soucePanel.Parent;
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}
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}
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private void DraggablePanel_MouseMove(object sender, MouseEventArgs e)
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{
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if (isDragging)
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{
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PanelControl _soucePanel = (PanelControl)sender;
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string _mmm = dragSourceContainer.Name.ToString();
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if (_mmm == "panelControl1")
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{
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_soucePanel.Location = new Point(
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dragPanelPoint.X + Cursor.Position.X - dragCursorPoint.X,
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dragPanelPoint.Y + Cursor.Position.Y - dragCursorPoint.Y);
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Point newLocation = _soucePanel.Location;
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Rectangle bounds = panelControl1.Bounds;
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if (IsOutsideBounds(_soucePanel, panelControl1))
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{
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lbMsg.Text = _soucePanel.Location.ToString() + "-" + bounds.ToString() + ":pp" + _mmm;
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panelControl1.Controls.Remove(_soucePanel);
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dockPanel1.Controls.Add(_soucePanel);
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RefreshControls();
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_soucePanel.Location = new Point(
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Math.Max(0, Math.Min(dockPanel1.Width - _soucePanel.Width, newLocation.X - dockPanel1.Location.X)),
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Math.Max(0, Math.Min(dockPanel1.Height - _soucePanel.Height, newLocation.Y - dockPanel1.Location.Y)));
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}
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else
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{
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lbMsg.Text = _soucePanel.Location.ToString() + "-" + bounds.ToString() + ":pp" + _mmm;
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}
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return;
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}
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if (_mmm == "dockPanel1_Container")
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{
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_soucePanel.Location = new Point(
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dragPanelPoint.X + Cursor.Position.X - dragCursorPoint.X,
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dragPanelPoint.Y + Cursor.Position.Y - dragCursorPoint.Y);
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Point newLocation = _soucePanel.Location;
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Rectangle bounds = dockPanel1.Bounds;
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if (IsOutsideBounds(_soucePanel, dockPanel1))
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{
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lbMsg.Text = _soucePanel.Location.ToString() + "-" + bounds.ToString() + ":pp" + _mmm;
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dockPanel1.Controls.Remove(_soucePanel);
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panelControl1.Controls.Add(_soucePanel);
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RefreshControls();
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_soucePanel.Location = new Point(
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Math.Max(0, Math.Min(panelControl1.Width - _soucePanel.Width, newLocation.X - panelControl1.Location.X)),
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Math.Max(0, Math.Min(panelControl1.Height - _soucePanel.Height, newLocation.Y - panelControl1.Location.Y)));
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}
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else
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{
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lbMsg.Text = _soucePanel.Location.ToString() + "-" + bounds.ToString() + ":pp" + _mmm;
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}
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return;
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}
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}
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}
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public static bool IsOutsideBounds(Control childControl, Control parentControl)
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{
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int _w = childControl.Width / 2;
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int _h = childControl.Height / 2;
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// 获取父控件的客户区矩形（相对于父控件自己）
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Rectangle parentClientRect = parentControl.ClientRectangle;
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// 获取子控件相对于父控件的位置和尺寸
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Rectangle childRectRelativeToParent = childControl.Bounds;
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// 检查子控件的左边界是否超出了父控件的左边界
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if (childRectRelativeToParent.Left < parentClientRect.Left - _w)
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return true;
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// 检查子控件的右边界是否超出了父控件的右边界
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if (childRectRelativeToParent.Right > parentClientRect.Right + _w)
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return true;
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// 检查子控件的顶边界是否超出了父控件的顶边界
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if (childRectRelativeToParent.Top < parentClientRect.Top - _h)
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return true;
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// 检查子控件的底边界是否超出了父控件的底边界
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if (childRectRelativeToParent.Bottom > parentClientRect.Bottom + _h)
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return true;
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// 如果子控件的所有边界都在父控件的边界内，则返回false
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return false;
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}
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private void DraggablePanel_MouseUp(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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isDragging = false;
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dragSourceContainer = panTuo.Parent;
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}
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}
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/// <summary>
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/// 对控件中的项进行排列
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/// </summary>
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private void RefreshControls()
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{
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int y = 0;
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foreach (PanelControl btn in dockPanel1_Container.Controls)
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{
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btn.Left = 0;
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btn.Top = y;
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y += btn.Height + 15;
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}
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}
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}
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}
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