Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Workflow.Activities/Designers/ParallelDesigner.cs

@@ -0,0 +1,81 @@
+namespace System.Workflow.Activities
+{
+    using System;
+    using System.Text;
+    using System.Reflection;
+    using System.Collections;
+    using System.Collections.Generic;
+    using System.CodeDom;
+    using System.ComponentModel;
+    using System.Collections.ObjectModel;
+    using System.ComponentModel.Design;
+    using System.Drawing.Design;
+    using System.Drawing;
+    using System.Drawing.Drawing2D;
+    using System.Workflow.ComponentModel;
+    using System.Workflow.ComponentModel.Design;
+    using System.Runtime.Serialization;
+
+    #region Class ParallelToolboxItem
+    [Serializable]
+    internal sealed class ParallelToolboxItem : ActivityToolboxItem
+    {
+        public ParallelToolboxItem(Type type)
+            : base(type)
+        {
+        }
+        private ParallelToolboxItem(SerializationInfo info, StreamingContext context)
+        {
+            Deserialize(info, context);
+        }
+        protected override IComponent[] CreateComponentsCore(IDesignerHost designerHost)
+        {
+            CompositeActivity parallelActivity = new ParallelActivity();
+            parallelActivity.Activities.Add(new SequenceActivity());
+            parallelActivity.Activities.Add(new SequenceActivity());
+            return (IComponent[])new IComponent[] { parallelActivity };
+        }
+    }
+    #endregion
+
+    #region Class ParallelDesigner
+    [ActivityDesignerTheme(typeof(ParallelDesignerTheme))]
+    internal sealed class ParallelDesigner : ParallelActivityDesigner
+    {
+        #region Properties and Methods
+        protected override CompositeActivity OnCreateNewBranch()
+        {
+            return new SequenceActivity();
+        }
+
+        public override bool CanInsertActivities(HitTestInfo insertLocation, ReadOnlyCollection<Activity> activitiesToInsert)
+        {
+            foreach (Activity activity in activitiesToInsert)
+            {
+                if (activity.GetType() != typeof(SequenceActivity))
+                    return false;
+            }
+            return base.CanInsertActivities(insertLocation, activitiesToInsert);
+        }
+        #endregion
+    }
+    #endregion
+
+    #region ParallelDesignerTheme
+    internal sealed class ParallelDesignerTheme : CompositeDesignerTheme
+    {
+        public ParallelDesignerTheme(WorkflowTheme theme)
+            : base(theme)
+        {
+            this.ShowDropShadow = false;
+            this.ConnectorStartCap = LineAnchor.None;
+            this.ConnectorEndCap = LineAnchor.None;
+            this.ForeColor = Color.FromArgb(0xFF, 0x80, 0x00, 0x80);
+            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
+}