Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WF / Activities / Designers / EventHandlersDesigner.cs / 1305376 / EventHandlersDesigner.cs
namespace System.Workflow.Activities { using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.Collections.ObjectModel; using System.ComponentModel; using System.ComponentModel.Design; using System.Workflow.ComponentModel; using System.Workflow.ComponentModel.Design; #region Class EventHandlersDesigner [ActivityDesignerTheme(typeof(EventHandlersDesignerTheme))] internal sealed class EventHandlersDesigner: ActivityPreviewDesigner { #region Members, Constructor and Destructor protected override void Initialize(Activity activity) { base.Initialize(activity); HelpText = DR.GetString(DR.DropEventsHere); ShowPreview = false; } #endregion #region Properties and Methods public override bool CanExpandCollapse { get { return false; } } public override bool CanBeParentedTo(CompositeActivityDesigner parentActivityDesigner) { if (parentActivityDesigner == null) throw new ArgumentNullException("parentActivity"); if (parentActivityDesigner.Activity != null) { if(!(parentActivityDesigner.Activity is EventHandlingScopeActivity)) return false; } return base.CanBeParentedTo(parentActivityDesigner); } public override bool CanInsertActivities(HitTestInfo insertLocation, ReadOnlyCollectionactivitiesToInsert) { foreach (Activity activity in activitiesToInsert) { if (!(activity is EventDrivenActivity)) return false; } return base.CanInsertActivities(insertLocation, activitiesToInsert); } public override object FirstSelectableObject { get { if (Expanded && IsVisible) { if (PreviewedDesigner != null || ContainedDesigners.Count > 0) return base.FirstSelectableObject; else if (ContainedDesigners.Count == 0) return new ConnectorHitTestInfo(this, HitTestLocations.Designer, 0).SelectableObject; } return null; } } public override object LastSelectableObject { get { if (Expanded && IsVisible) { if (PreviewedDesigner != null || ContainedDesigners.Count > 0) return base.LastSelectableObject; else if (ContainedDesigners.Count == 0) return new ConnectorHitTestInfo(this, HitTestLocations.Designer, GetConnectors().GetLength(0) - 1).SelectableObject; } return null; } } #endregion } #endregion #region EventHandlersDesignerTheme internal sealed class EventHandlersDesignerTheme : ActivityPreviewDesignerTheme { public EventHandlersDesignerTheme(WorkflowTheme theme) : base(theme) { this.ShowDropShadow = false; this.ConnectorStartCap = LineAnchor.None; this.ConnectorEndCap = LineAnchor.None; this.ForeColor = Color.FromArgb(0xFF, 0x00, 0x00, 0x00); this.BorderColor = Color.FromArgb(0xFF, 0xE0, 0xE0, 0xE0); this.BorderStyle = DashStyle.Dash; this.BackColorStart = Color.FromArgb(0x35, 0xFF, 0xFF, 0xB0); this.BackColorEnd = Color.FromArgb(0x35, 0xFF, 0xFF, 0xB0); this.PreviewForeColor = Color.FromArgb(0xFF, 0xF0, 0xF0,0xF0); this.PreviewBorderColor= Color.FromArgb(0xFF, 0x6B, 0x6D, 0x6B); this.PreviewBackColor= Color.FromArgb(0xFF, 0xFF, 0xFF, 0xFF); } } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
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