using DevExpress.XtraCharts;
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using System;
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using System.Drawing;
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using System.Windows.Forms;
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namespace Gs.DevApp.ToolBox
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{
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public class DragResizeHelp
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{
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#region Field
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private static bool isDragging = false;
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private const int Band = 5;
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private const int MinWidth = 10;
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private const int MinHeight = 10;
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private static EnumMousePointPosition m_MousePointPosition;
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private static Point p, p1;
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private static Label sbMsg;
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private static Control dragBox1;
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private static string dragCurrent_Name = "";
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private static DevExpress.XtraBars.Docking.ControlContainer dockPanel1_Container;
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#endregion
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#region Inner Object
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private enum EnumMousePointPosition
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{
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MouseSizeNone = 0, //'无
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MouseSizeRight = 1, //'拉伸右边框
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MouseSizeLeft = 2, //'拉伸左边框
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MouseSizeBottom = 3, //'拉伸下边框
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MouseSizeTop = 4, //'拉伸上边框
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MouseSizeTopLeft = 5, //'拉伸左上角
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MouseSizeTopRight = 6, //'拉伸右上角
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MouseSizeBottomLeft = 7, //'拉伸左下角
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MouseSizeBottomRight = 8, //'拉伸右下角
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MouseDrag = 9 // '鼠标拖动
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}
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#endregion
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#region Constructor
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public DragResizeHelp()
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{
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// Nothing to do.
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}
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#endregion
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private static void InitializeComponent(DevExpress.XtraEditors.XtraForm frm)
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{
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DevExpress.XtraBars.Docking.DockManager dockManager1;
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DevExpress.XtraBars.Docking.DockPanel dragBox2_Container;
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dockManager1 = new DevExpress.XtraBars.Docking.DockManager();
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dragBox2_Container = new DevExpress.XtraBars.Docking.DockPanel();
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dockPanel1_Container = new DevExpress.XtraBars.Docking.ControlContainer();
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((System.ComponentModel.ISupportInitialize)(dockManager1)).BeginInit();
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//
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// dockManager1
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//
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dockManager1.Form = frm;
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dockManager1.RootPanels.AddRange(new DevExpress.XtraBars.Docking.DockPanel[] {
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dragBox2_Container});
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//
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// dockPanel1
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//
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dragBox2_Container.Controls.Add(dockPanel1_Container);
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dragBox2_Container.Dock = DevExpress.XtraBars.Docking.DockingStyle.Float;
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dragBox2_Container.FloatLocation = new System.Drawing.Point(691, 455);
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dragBox2_Container.ID = new System.Guid("319a7cf1-f26d-4049-8a96-8f9fbbd13cd2");
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dragBox2_Container.Location = new System.Drawing.Point(0, 0);
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dragBox2_Container.Name = "dockPanel1";
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dragBox2_Container.OriginalSize = new System.Drawing.Size(200, 200);
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dragBox2_Container.Size = new System.Drawing.Size(200, 200);
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dragBox2_Container.Text = "dockPanel1";
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dragBox2_Container.Options.AllowDockBottom = false;
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dragBox2_Container.Options.AllowDockFill = false;
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dragBox2_Container.Options.AllowDockLeft = false;
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dragBox2_Container.Options.AllowDockRight = false;
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dragBox2_Container.Options.AllowDockTop = false;
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dragBox2_Container.Options.ShowMaximizeButton = false;
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dragBox2_Container.Options.ShowMaximizeButton = false;
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//
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// dockPanel1_Container
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//
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dockPanel1_Container.Location = new System.Drawing.Point(5, 32);
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dockPanel1_Container.Name = "dockPanel1_Container";
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dockPanel1_Container.Size = new System.Drawing.Size(190, 164);
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dockPanel1_Container.TabIndex = 0;
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//
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// XtraForm3
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//
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((System.ComponentModel.ISupportInitialize)(dockManager1)).EndInit();
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dragBox2_Container.ResumeLayout(false);
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frm.ResumeLayout(false);
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dragBox2_Container.Show();
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}
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#region Public Method
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public static void RegisterControl(DevExpress.XtraEditors.XtraForm frm, Control box1, Label lbMsg)
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{
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InitializeComponent(frm);
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foreach (Control control in box1.Controls)
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{
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if (control != null)
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{
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sbMsg = lbMsg;
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dragBox1 = box1;
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dragCurrent_Name = box1.Name;
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control.MouseDown += new MouseEventHandler(control_MouseDown);
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control.MouseLeave += new EventHandler(control_MouseLeave);
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control.MouseMove += new MouseEventHandler(control_MouseMove);
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control.MouseUp += Control_MouseUp;
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control.Resize += myPanel_Resize;
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}
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}
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}
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private static void Control_MouseUp(object sender, MouseEventArgs e)
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{
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(sender as Control).Refresh();
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}
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public static void UnRegisterControl(Control control)
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{
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if (control != null)
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{
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control.MouseDown -= new MouseEventHandler(control_MouseDown);
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control.MouseLeave -= new EventHandler(control_MouseLeave);
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control.MouseMove -= new MouseEventHandler(control_MouseMove);
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}
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}
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#endregion
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private static void control_MouseDown(object sender, MouseEventArgs e)
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{
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p.X = e.X;
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p.Y = e.Y;
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p1.X = e.X;
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p1.Y = e.Y;
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isDragging = true;
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dragCurrent_Name = (sender as Control).Parent.Name;
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}
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private static void myPanel_Resize(object sender, EventArgs e)
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{
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Control panel = sender as Control;
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if (panel != null && panel.Controls.Count > 0)
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{
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foreach (Control childControl in panel.Controls)
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{
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// childControl.BorderStyle = DevExpress.XtraEditors.Controls.BorderStyles.NoBorder;
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childControl.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Left | System.Windows.Forms.AnchorStyles.Right)));
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int newY = (panel.ClientSize.Height - childControl.Height) / 2;
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childControl.Location = new Point(childControl.Location.X, newY);
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}
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}
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}
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private static void control_MouseLeave(object sender, EventArgs e)
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{
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m_MousePointPosition = EnumMousePointPosition.MouseSizeNone;
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Control control = sender as Control;
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control.Cursor = Cursors.Arrow;
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}
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private static void control_MouseMove(object sender, MouseEventArgs e)
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{
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if (!isDragging) { return; }
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Control lCtrl = (sender as Control);
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if (e.Button == MouseButtons.Left)
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{
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switch (m_MousePointPosition)
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{
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case EnumMousePointPosition.MouseDrag:
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lCtrl.Left = lCtrl.Left + e.X - p.X;
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lCtrl.Top = lCtrl.Top + e.Y - p.Y;
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break;
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case EnumMousePointPosition.MouseSizeBottom:
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lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
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p1.X = e.X;
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p1.Y = e.Y; //'记录光标拖动的当前点
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break;
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case EnumMousePointPosition.MouseSizeBottomRight:
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lCtrl.Width = lCtrl.Width + e.X - p1.X;
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lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
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p1.X = e.X;
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p1.Y = e.Y; //'记录光标拖动的当前点
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break;
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case EnumMousePointPosition.MouseSizeRight:
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lCtrl.Width = lCtrl.Width + e.X - p1.X; //
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lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
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p1.X = e.X;
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p1.Y = e.Y; //'记录光标拖动的当前点
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break;
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case EnumMousePointPosition.MouseSizeTop:
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lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
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lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
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break;
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case EnumMousePointPosition.MouseSizeLeft:
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lCtrl.Left = lCtrl.Left + e.X - p.X;
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lCtrl.Width = lCtrl.Width - (e.X - p.X);
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break;
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case EnumMousePointPosition.MouseSizeBottomLeft:
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lCtrl.Left = lCtrl.Left + e.X - p.X;
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lCtrl.Width = lCtrl.Width - (e.X - p.X);
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lCtrl.Height = lCtrl.Height + e.Y - p1.Y;
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p1.X = e.X;
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p1.Y = e.Y; //'记录光标拖动的当前点
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break;
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case EnumMousePointPosition.MouseSizeTopRight:
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lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
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lCtrl.Width = lCtrl.Width + (e.X - p1.X);
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lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
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p1.X = e.X;
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p1.Y = e.Y; //'记录光标拖动的当前点
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break;
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case EnumMousePointPosition.MouseSizeTopLeft:
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lCtrl.Left = lCtrl.Left + e.X - p.X;
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lCtrl.Top = lCtrl.Top + (e.Y - p.Y);
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lCtrl.Width = lCtrl.Width - (e.X - p.X);
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lCtrl.Height = lCtrl.Height - (e.Y - p.Y);
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break;
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default:
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break;
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}
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if (lCtrl.Width < MinWidth) lCtrl.Width = MinWidth;
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if (lCtrl.Height < MinHeight) lCtrl.Height = MinHeight;
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}
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else
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{
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m_MousePointPosition = MousePointPosition(lCtrl.Size, e); //'判断光标的位置状态
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Control control = sender as Control;
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switch (m_MousePointPosition) //'改变光标
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{
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case EnumMousePointPosition.MouseSizeNone:
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control.Cursor = Cursors.Arrow;
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//'箭头
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break;
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case EnumMousePointPosition.MouseDrag:
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control.Cursor = Cursors.SizeAll; //'四方向
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break;
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case EnumMousePointPosition.MouseSizeBottom:
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control.Cursor = Cursors.SizeNS; //'南北
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break;
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case EnumMousePointPosition.MouseSizeTop:
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control.Cursor = Cursors.SizeNS; //'南北
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break;
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case EnumMousePointPosition.MouseSizeLeft:
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control.Cursor = Cursors.SizeWE; //'东西
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break;
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case EnumMousePointPosition.MouseSizeRight:
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control.Cursor = Cursors.SizeWE; //'东西
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break;
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case EnumMousePointPosition.MouseSizeBottomLeft:
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control.Cursor = Cursors.SizeNESW; //'东北到南西
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break;
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case EnumMousePointPosition.MouseSizeBottomRight:
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control.Cursor = Cursors.SizeNWSE; //'东南到西北
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break;
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case EnumMousePointPosition.MouseSizeTopLeft:
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control.Cursor = Cursors.SizeNWSE; //'东南到西北
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break;
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case EnumMousePointPosition.MouseSizeTopRight:
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control.Cursor = Cursors.SizeNESW; //'东北到南西
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break;
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default:
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break;
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}
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control.Refresh();
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Graphics g = control.CreateGraphics();
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int width = control.Width;
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int height = control.Height;
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Point[] ps = { new Point(0, 0),new Point(width - 1, 0),
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new Point(width - 1, height - 1),new Point(0, height - 1),new Point(0, 0) };
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g.DrawLines(new Pen(Color.LightCoral), ps);
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}
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if (dragBox1.Name == dragCurrent_Name)
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{
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if (IsOutsideBounds(lCtrl, dragBox1))
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{
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dragBox1.Controls.Remove(lCtrl);
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dockPanel1_Container.Controls.Add(lCtrl);
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lCtrl.Left = 0;
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lCtrl.Top = 10;
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isDragging = false;
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dragCurrent_Name = dockPanel1_Container.Name;
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}
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}
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else if (dockPanel1_Container.Name == dragCurrent_Name)
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{
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if (IsOutsideBounds(lCtrl, dockPanel1_Container))
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{
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dockPanel1_Container.Controls.Remove(lCtrl);
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dragBox1.Controls.Add(lCtrl);
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lCtrl.Left = 0;
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lCtrl.Top = 10;
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isDragging = false;
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dragCurrent_Name = dragBox1.Name;
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}
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}
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sbMsg.Text = lCtrl.Location.ToString() + "容器：" + dragCurrent_Name;
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}
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private static EnumMousePointPosition MousePointPosition(Size size, System.Windows.Forms.MouseEventArgs e)
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{
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if ((e.X >= -1 * Band) | (e.X <= size.Width) | (e.Y >= -1 * Band) | (e.Y <= size.Height))
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{
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if (e.X < Band)
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{
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if (e.Y < Band)
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{
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return EnumMousePointPosition.MouseSizeTopLeft;
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}
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else
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{
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if (e.Y > -1 * Band + size.Height)
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{
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return EnumMousePointPosition.MouseSizeBottomLeft;
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}
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else
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{
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return EnumMousePointPosition.MouseSizeLeft;
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}
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}
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}
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else
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{
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if (e.X > -1 * Band + size.Width)
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{
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if (e.Y < Band)
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{
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return EnumMousePointPosition.MouseSizeTopRight;
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}
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else
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{
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if (e.Y > -1 * Band + size.Height)
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{
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return EnumMousePointPosition.MouseSizeBottomRight;
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}
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else
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{
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return EnumMousePointPosition.MouseSizeRight;
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}
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}
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}
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else
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{
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if (e.Y < Band)
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{
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return EnumMousePointPosition.MouseSizeTop;
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}
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else
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{
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if (e.Y > -1 * Band + size.Height)
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{
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return EnumMousePointPosition.MouseSizeBottom;
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}
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else
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{
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return EnumMousePointPosition.MouseDrag;
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}
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}
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}
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}
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}
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else
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{
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return EnumMousePointPosition.MouseSizeNone;
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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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if (parentControl == null) return true;
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if (parentControl == null) return true;
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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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}
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}
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