A dynamic Rehosted Workflow Designer for WF 4

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Selen.WorkflowDesigner.Contracts;
using RehostedDesigner.Services.Contracts;
using System.Drawing;
using Selen.WorkflowDesigner.Storage.Contracts;

namespace Selen.ActivityWorkflowType
{
    class VoidActivityType : IWorkflowType
    {
        public VoidActivityType()
        {
            var adapter = new ActivityStorageAdapter();
            this.ToolboxCreatorService = new ToolboxCreatorServiceWithCustomActivities(adapter);
            this.StorageAdapter = adapter;
        }

        public IToolboxCreatorService ToolboxCreatorService
        {
            get;
            private set;
        }

        public IStorageAdapter StorageAdapter
        {
            get;
            private set;
        }

        public string Description
        {
            get
            {
                return "This template does not create a workflow, but an activity-module, that can be reused in other workflows or activities. " +
                    "The activities you create with this template can normally be found in the toolbox after you loaded or created another workflow or activity, if supported by the concerning workflow type. " +
                    "It is possible to define arguments that you can pass into this activity or return from the activity, but there is no pre-defined return value";
            }
        }

        public Bitmap Icon
        {
            get { return null; }
        }

        public string Name
        {
            get { return "Activity without return value"; }
        }

        public string Path
        {
            get { return "Standard"; }
        }

        public bool CanBeDisplayed
        {
            get { return true; }
        }
    }
}