ListenDesigner.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / Designers / ListenDesigner.cs / 1305376 / ListenDesigner.cs
                        

                        
                            namespace System.Workflow.Activities 
{
 	using System;
	using System.Text;
	using System.Reflection; 
	using System.Collections;
 	using System.Collections.ObjectModel; 
	using System.CodeDom; 
 	using System.ComponentModel;
 	using System.ComponentModel.Design; 
	using System.Drawing.Design;
 	using System.Drawing;
    using System.Drawing.Drawing2D;
    using System.Diagnostics; 
	using System.Workflow.ComponentModel;
	using System.Workflow.ComponentModel.Design; 
	using System.Runtime.Serialization; 
 	
	#region Class ListenToolboxItem 
 	[Serializable]
 	internal sealed class ListenToolboxItem: ActivityToolboxItem
	{
 		public ListenToolboxItem(Type type) 
			: base(type)
		{ 
		} 
 		private ListenToolboxItem(SerializationInfo info, StreamingContext context)
		{ 
 			Deserialize(info, context);
 		}
		protected override IComponent[] CreateComponentsCore(IDesignerHost designerHost)
 		{ 
			CompositeActivity listenActivity = new ListenActivity();
			listenActivity.Activities.Add(new EventDrivenActivity()); 
			listenActivity.Activities.Add(new EventDrivenActivity()); 
 			return (IComponent[])new IComponent[] {listenActivity};
		} 
 	}
 	#endregion

	#region Class ListenDesigner 
    [ActivityDesignerTheme(typeof(ListenDesignerTheme))]
 	internal sealed class ListenDesigner: ParallelActivityDesigner 
	{ 
		#region Properties and Methods
		public override bool CanInsertActivities(HitTestInfo insertLocation, ReadOnlyCollection activitiesToInsert) 
        {
 			foreach (Activity activity in activitiesToInsert)
			{
 				if (!(activity is EventDrivenActivity)) 
 					return false;
			} 
            return base.CanInsertActivities(insertLocation, activitiesToInsert); 
        }
 
 		protected override CompositeActivity OnCreateNewBranch()
		{
            return new EventDrivenActivity();
		} 

        protected override void OnPaint(ActivityDesignerPaintEventArgs e) 
        { 
            base.OnPaint(e);
 
            if (!Expanded || ContainedDesigners.Count == 0 || this != ActiveView.AssociatedDesigner)
                return;

            CompositeDesignerTheme compositeDesignerTheme = e.DesignerTheme as CompositeDesignerTheme; 
            Debug.Assert(compositeDesignerTheme != null);
            if (compositeDesignerTheme == null) 
                return; 

            //Draw the Icon and Text 
            Rectangle bounds = Bounds;
            Rectangle imageRectangle = ImageRectangle;

            Rectangle roundRectangle = Rectangle.Empty; 
            roundRectangle.Width = compositeDesignerTheme.ConnectorSize.Height - 2 * e.AmbientTheme.Margin.Height - 1;
            roundRectangle.Height = roundRectangle.Width; 
            roundRectangle.X = bounds.Left + bounds.Width / 2 - roundRectangle.Width / 2; 
            roundRectangle.Y = bounds.Top + TitleHeight + (compositeDesignerTheme.ConnectorSize.Height * 3 / 2 - roundRectangle.Height) / 2;
 
            e.Graphics.FillEllipse(compositeDesignerTheme.ForegroundBrush, roundRectangle);
            e.Graphics.DrawEllipse(compositeDesignerTheme.ForegroundPen, roundRectangle);

            roundRectangle.Y = bounds.Bottom - compositeDesignerTheme.ConnectorSize.Height * 3 / 2 + (compositeDesignerTheme.ConnectorSize.Height * 3 / 2 - roundRectangle.Height) / 2; 
            e.Graphics.FillEllipse(compositeDesignerTheme.ForegroundBrush, roundRectangle);
            e.Graphics.DrawEllipse(compositeDesignerTheme.ForegroundPen, roundRectangle); 
         } 
		#endregion
 	} 
	#endregion

    #region ListenDesignerTheme
    internal sealed class ListenDesignerTheme : CompositeDesignerTheme 
    {
        public ListenDesignerTheme(WorkflowTheme theme) 
            : base(theme) 
        {
            this.ShowDropShadow = false; 
            this.ConnectorStartCap = LineAnchor.None;
            this.ConnectorEndCap = LineAnchor.None;
            this.ForeColor = Color.FromArgb(0xFF, 0x80, 0x00, 0x00);
            this.BorderColor = Color.FromArgb(0xFF, 0xE0, 0xE0, 0xE0); 
            this.BorderStyle = DashStyle.Dash;
            this.BackColorStart = Color.FromArgb(0x00, 0x00, 0x00, 0x00); 
            this.BackColorEnd = Color.FromArgb(0x00, 0x00, 0x00, 0x00); 
        }
    } 
    #endregion
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.

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