|
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<Activity> 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
}
|