MDI and Dock
/*
User Interfaces in C#: Windows Forms and Custom Controls
by Matthew MacDonald
Publisher: Apress
ISBN: 1590590457
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Drawing.Drawing2D;
namespace DockingWindows
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class MDIMain : System.Windows.Forms.Form
{
internal System.Windows.Forms.Panel pnlDock;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public MDIMain()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.pnlDock = new System.Windows.Forms.Panel();
this.SuspendLayout();
//
// pnlDock
//
this.pnlDock.Anchor = ((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left);
this.pnlDock.BackColor = System.Drawing.SystemColors.AppWorkspace;
this.pnlDock.Name = "pnlDock";
this.pnlDock.Size = new System.Drawing.Size(148, 302);
this.pnlDock.TabIndex = 2;
this.pnlDock.Visible = false;
this.pnlDock.Paint += new System.Windows.Forms.PaintEventHandler(this.pnlDock_Paint);
//
// MDIMain
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(534, 304);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.pnlDock});
this.IsMdiContainer = true;
this.Name = "MDIMain";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new MDIMain());
}
private void Form1_Load(object sender, System.EventArgs e)
{
Floater frmFloat = new Floater();
frmFloat.Owner = this;
frmFloat.Show();
}
public bool DrawDockRectangle
{
get
{
return pnlDock.Visible;
}
set
{
pnlDock.Visible = value;
}
}
public void AddToDock(Form frm)
{
// Allow the form to be contained in a container control.
frm.TopLevel = false;
pnlDock.Controls.Add(frm);
// Don't let the form be dragged off.
frm.WindowState = FormWindowState.Maximized;
}
private void pnlDock_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
{
HatchBrush dockCueBrush = new HatchBrush(HatchStyle.LightDownwardDiagonal,
Color.White, Color.Gray);
Pen dockCuePen = new Pen(dockCueBrush, 10);
e.Graphics.DrawRectangle(dockCuePen,
new Rectangle(0, 0, pnlDock.Width, pnlDock.Height));
}
}
/// <summary>
/// Summary description for Floater.
/// </summary>
public class Floater : System.Windows.Forms.Form
{
internal System.Windows.Forms.PictureBox PictureBox2;
internal System.Windows.Forms.Button Button3;
internal System.Windows.Forms.Button Button2;
internal System.Windows.Forms.Button Button1;
internal System.Windows.Forms.Timer tmrDock;
private System.ComponentModel.IContainer components;
public Floater()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
this.PictureBox2 = new System.Windows.Forms.PictureBox();
this.Button3 = new System.Windows.Forms.Button();
this.Button2 = new System.Windows.Forms.Button();
this.Button1 = new System.Windows.Forms.Button();
this.tmrDock = new System.Windows.Forms.Timer(this.components);
this.SuspendLayout();
//
// PictureBox2
//
this.PictureBox2.Anchor = (((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right);
this.PictureBox2.Location = new System.Drawing.Point(1, -3);
this.PictureBox2.Name = "PictureBox2";
this.PictureBox2.Size = new System.Drawing.Size(134, 172);
this.PictureBox2.TabIndex = 2;
this.PictureBox2.TabStop = false;
//
// Button3
//
this.Button3.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.Button3.Location = new System.Drawing.Point(14, 56);
this.Button3.Name = "Button3";
this.Button3.Size = new System.Drawing.Size(108, 20);
this.Button3.TabIndex = 7;
this.Button3.Text = "Controls";
//
// Button2
//
this.Button2.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.Button2.Location = new System.Drawing.Point(14, 36);
this.Button2.Name = "Button2";
this.Button2.Size = new System.Drawing.Size(108, 20);
this.Button2.TabIndex = 6;
this.Button2.Text = "Dockable";
//
// Button1
//
this.Button1.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.Button1.Location = new System.Drawing.Point(14, 16);
this.Button1.Name = "Button1";
this.Button1.Size = new System.Drawing.Size(108, 20);
this.Button1.TabIndex = 5;
this.Button1.Text = "Sample";
//
// tmrDock
//
this.tmrDock.Interval = 10;
this.tmrDock.Tick += new System.EventHandler(this.tmrDock_Tick);
//
// Floater
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
this.ClientSize = new System.Drawing.Size(136, 166);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.Button3,
this.Button2,
this.Button1,
this.PictureBox2});
this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedToolWindow;
this.Name = "Floater";
this.Text = "Floater";
this.Move += new System.EventHandler(this.Floater_Move);
this.ResumeLayout(false);
}
#endregion
private Point dockTestAt;
private void Floater_Move(object sender, System.EventArgs e)
{
// Determine the current location in parent form coordinates.
Point mouseAt = this.Owner.PointToClient(this.Location);
// Determine if the floated is close enough to dock.
if (mouseAt.X < 5 && mouseAt.X > -5)
{
if ((Control.MouseButtons & MouseButtons.Left) == MouseButtons.Left)
{
dockTestAt = mouseAt;
// Show the dock focus rectangle.
((MDIMain)this.Owner).DrawDockRectangle = true;
// Reset the timer to poll for the MouseUp event.
tmrDock.Enabled = false;
tmrDock.Enabled = true;
}
}
}
private void tmrDock_Tick(object sender, System.EventArgs e)
{
if (dockTestAt.X == this.Owner.PointToClient(this.Location).X
&& dockTestAt.Y == this.Owner.PointToClient(this.Location).Y)
{
if (Control.MouseButtons == MouseButtons.None)
{
// Dock in place.
tmrDock.Enabled = false;
((MDIMain)this.Owner).AddToDock(this);
}
}
else
{
// Mouse has moved. Disable this dock attempt.
tmrDock.Enabled = false;
((MDIMain)this.Owner).DrawDockRectangle = false;
}
}
}
}
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