RegionMaster Controls

The RegionMaster Controls allow users to create non-rectangular, discontiguous top level windows without writing any code in the Visual Studio .NET form designer.

C# (360.1 KB)
 
 
 
 
 
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2/2/2011
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C#
using System.Runtime.InteropServices;
using System.ComponentModel;
using System;    
using System.ComponentModel.Design;
using Microsoft.Win32;
using System.Drawing;    
using System.Drawing.Design;
using System.Windows.Forms;
using System.Windows.Forms.ComponentModel;
using System.Windows.Forms.Design;

namespace Microsoft.Samples
{
	// Used by the StraightLine to specify the type of line to draw
	[Editor("Microsoft.Samples.StraightLineTypeEditor" , typeof(UITypeEditor))]
	public enum StraightLineTypes 
	{
		Horizontal,
		Vertical,
		DiagonalDescending,
		DiagonalAscending,
	}

	// The UITypeEditor for the StraightLineTypes enum
	#region UITypeEditor
	public class StraightLineTypeEditor : UITypeEditor 
	{
		private StraightLineTypeUI lineTypeUI;

		public override object EditValue(ITypeDescriptorContext context,  IServiceProvider  provider, object value) 
		{
			object returnValue = value;
			if (provider != null) 
			{
				IWindowsFormsEditorService edSvc = (IWindowsFormsEditorService)provider.GetService(typeof(IWindowsFormsEditorService));
				if (edSvc != null) 
				{
					if (lineTypeUI == null) 
					{
						lineTypeUI = new StraightLineTypeUI(this);
					}
					lineTypeUI.Start(edSvc, value);
					edSvc.DropDownControl(lineTypeUI);
					value = lineTypeUI.Value;
					lineTypeUI.End();
				}
			}
			return value;
		}

		public override UITypeEditorEditStyle GetEditStyle(ITypeDescriptorContext context) 
		{
			return UITypeEditorEditStyle.DropDown;
		}

		#region Control used in the UITypeEditor
		private class StraightLineTypeUI : Control 
		{
			private IWindowsFormsEditorService edSvc;
			private StraightLineTypeEditor editor = null;
			private StraightLineTypes oldLineType;
			private object value;

			public StraightLineTypeUI(StraightLineTypeEditor editor) 
			{
				this.editor = editor;
				InitializeComponent();
			}
            
			public object Value 
			{ 
				get 
				{
					return value;
				}
			}
            
			public void End() 
			{
				value = null;
				edSvc = null;
			}

			public void Start(IWindowsFormsEditorService edSvc, object value) 
			{
				this.edSvc = edSvc;
				this.value = value;
				this.oldLineType = (StraightLineTypes)value;

				Panel panel;
				foreach (Control c in Controls) 
				{
					panel = c as Panel;
					if (c != null) 
					{
						c.BackColor = SystemColors.Control;
						c.ForeColor = SystemColors.ControlText;
					}
					panel = null;
				}
				
				switch ((StraightLineTypes)value) 
				{
					case StraightLineTypes.Horizontal: 
						this.horizontalPanel.BackColor = SystemColors.ControlText;
						this.horizontalPanel.ForeColor = SystemColors.Control;
						break;
					case StraightLineTypes.Vertical:
						this.verticalPanel.BackColor = SystemColors.ControlText;
						this.verticalPanel.ForeColor = SystemColors.Control;
						break;
					case StraightLineTypes.DiagonalAscending:
						this.diagonalAscendingPanel.BackColor = SystemColors.ControlText;
						this.diagonalAscendingPanel.ForeColor = SystemColors.Control;
						break;
					case StraightLineTypes.DiagonalDescending:
						this.diagonalDescendingPanel.BackColor = SystemColors.ControlText;
						this.diagonalDescendingPanel.ForeColor = SystemColors.Control;
						break;
					default: break;
				}
			}

			private void Teardown( bool save ) 
			{
				if (!save) 
				{
					value = oldLineType;
				}
				edSvc.CloseDropDown();
			}

			private void button_Click(object sender, System.EventArgs e)
			{
				StraightLine line = sender as StraightLine;
				if (line != null) 
				{
					this.value = line.LineType;
					Teardown(true);
				}
			}

			#region Component Designer generated code

			private System.Windows.Forms.Panel horizontalPanel;
			private System.Windows.Forms.Panel verticalPanel;
			private System.Windows.Forms.Panel diagonalDescendingPanel;
			private System.Windows.Forms.Panel diagonalAscendingPanel;
			private Microsoft.Samples.StraightLine horizontalLine;
			private Microsoft.Samples.StraightLine verticalLine;
			private Microsoft.Samples.StraightLine diagonalDescendingLine;
			private Microsoft.Samples.StraightLine diagonalAscendingLine;

			internal virtual void InitializeComponent() 
			{
				this.horizontalPanel = new System.Windows.Forms.Panel();
				this.verticalPanel = new System.Windows.Forms.Panel();
				this.diagonalDescendingPanel = new System.Windows.Forms.Panel();
				this.diagonalAscendingPanel = new System.Windows.Forms.Panel();
				this.horizontalLine = new Microsoft.Samples.StraightLine();
				this.verticalLine = new Microsoft.Samples.StraightLine();
				this.diagonalDescendingLine = new Microsoft.Samples.StraightLine();
				this.diagonalAscendingLine = new Microsoft.Samples.StraightLine();
				this.horizontalPanel.SuspendLayout();
				this.verticalPanel.SuspendLayout();
				this.diagonalDescendingPanel.SuspendLayout();
				this.diagonalAscendingPanel.SuspendLayout();
				this.SuspendLayout();
				// 
				// horizontalPanel
				// 
				this.horizontalPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
				this.horizontalPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																					 this.horizontalLine});
				this.horizontalPanel.Location = new System.Drawing.Point(2, 2);
				this.horizontalPanel.Name = "horizontalPanel";
				this.horizontalPanel.Size = new System.Drawing.Size(40, 40);
				this.horizontalPanel.TabIndex = 0;
				// 
				// verticalPanel
				// 
				this.verticalPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
				this.verticalPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																					 this.verticalLine});
				this.verticalPanel.Location = new System.Drawing.Point(44, 2);
				this.verticalPanel.Name = "verticalPanel";
				this.verticalPanel.Size = new System.Drawing.Size(40, 40);
				this.verticalPanel.TabIndex = 1;
				// 
				// diagonalDescendingPanel
				// 
				this.diagonalDescendingPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
				this.diagonalDescendingPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																					 this.diagonalDescendingLine});
				this.diagonalDescendingPanel.Location = new System.Drawing.Point(86, 2);
				this.diagonalDescendingPanel.Name = "diagonalDescendingPanel";
				this.diagonalDescendingPanel.Size = new System.Drawing.Size(40, 40);
				this.diagonalDescendingPanel.TabIndex = 2;
				// 
				// diagonalAscendingPanel
				// 
				this.diagonalAscendingPanel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
				this.diagonalAscendingPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
																					 this.diagonalAscendingLine});
				this.diagonalAscendingPanel.Location = new System.Drawing.Point(128, 2);
				this.diagonalAscendingPanel.Name = "diagonalAscendingPanel";
				this.diagonalAscendingPanel.Size = new System.Drawing.Size(40, 40);
				this.diagonalAscendingPanel.TabIndex = 3;
				// 
				// horizontalLine
				// 
				this.horizontalLine.Dock = System.Windows.Forms.DockStyle.Fill;
				this.horizontalLine.LineType = Microsoft.Samples.StraightLineTypes.Horizontal;
				this.horizontalLine.Name = "horizontalLine";
				this.horizontalLine.Size = new System.Drawing.Size(38, 38);
				this.horizontalLine.TabIndex = 0;
				this.horizontalLine.Text = "straightLine1";
				this.horizontalLine.Click += new EventHandler(this.button_Click);
				// 
				// verticalLine
				// 
				this.verticalLine.Dock = System.Windows.Forms.DockStyle.Fill;
				this.verticalLine.LineType = Microsoft.Samples.StraightLineTypes.Vertical;
				this.verticalLine.Name = "verticalLine";
				this.verticalLine.Size = new System.Drawing.Size(38, 38);
				this.verticalLine.TabIndex = 0;
				this.verticalLine.Text = "straightLine2";
				this.verticalLine.Click += new EventHandler(this.button_Click);
				// 
				// diagonalDescendingLine
				// 
				this.diagonalDescendingLine.Dock = System.Windows.Forms.DockStyle.Fill;
				this.diagonalDescendingLine.LineType = Microsoft.Samples.StraightLineTypes.DiagonalDescending;
				this.diagonalDescendingLine.Name = "diagonalDescendingLine";
				this.diagonalDescendingLine.Size = new System.Drawing.Size(38, 38);
				this.diagonalDescendingLine.TabIndex = 0;
				this.diagonalDescendingLine.Text = "straightLine3";
				this.diagonalDescendingLine.Click += new EventHandler(this.button_Click);
				// 
				// diagonalAscendingLine
				// 
				this.diagonalAscendingLine.Dock = System.Windows.Forms.DockStyle.Fill;
				this.diagonalAscendingLine.LineType = Microsoft.Samples.StraightLineTypes.DiagonalAscending;
				this.diagonalAscendingLine.Name = "diagonalAscendingLine";
				this.diagonalAscendingLine.Size = new System.Drawing.Size(38, 38);
				this.diagonalAscendingLine.TabIndex = 0;
				this.diagonalAscendingLine.Text = "straightLine4";
				this.diagonalAscendingLine.Click += new EventHandler(this.button_Click);
				// 
				// UserControl1
				// 
				this.Controls.AddRange(new System.Windows.Forms.Control[] {
																			  this.diagonalAscendingPanel,
																			  this.diagonalDescendingPanel,
																			  this.verticalPanel,
																			  this.horizontalPanel});
				this.Name = "UserControl1";
				this.Size = new System.Drawing.Size(164, 44);
				this.BackColor = System.Drawing.SystemColors.InactiveBorder;
				this.horizontalPanel.ResumeLayout(false);
				this.verticalPanel.ResumeLayout(false);
				this.diagonalDescendingPanel.ResumeLayout(false);
				this.diagonalAscendingPanel.ResumeLayout(false);
				this.ResumeLayout(false);
			}
			#endregion
		}
		#endregion
	}
	#endregion
}