using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Windows;
using?System.Windows.Controls;
using?System.Windows.Input;

namespace?Aga.Diagrams
{
	public?static?class?AutoScrollDecorator
	{
		public?static?readonly?DependencyProperty?IsEnabledProperty?=?
			DependencyProperty.RegisterAttached（
				??“IsEnabled“
				??typeof（bool）
				??typeof（AutoScrollDecorator）?new?Propertymetadata（false?IsEnabledValueChanged））;


		public?static?void?SetIsEnabled（Dependencyobject?element?bool?value）
		{
			element.SetValue（IsEnabledProperty?value）;
		}

		public?static?bool?GetIsEnabled（Dependencyobject?element）
		{
			return?（bool）element.GetValue（IsEnabledProperty）;
		}

		public?static?readonly?DependencyProperty?SensivityProperty?=
			DependencyProperty.RegisterAttached（
				??“Sensivity“
				??typeof（double）
				??typeof（AutoScrollDecorator）?new?Propertymetadata（20.0））;

		public?static?void?SetSensivity（Dependencyobject?element?double?value）
		{
			element.SetValue（SensivityProperty?value）;
		}

		public?static?double?GetSensivity（Dependencyobject?element）
		{
			return?（double）element.GetValue（SensivityProperty）;
		}

		public?static?readonly?DependencyProperty?StepProperty?=
			DependencyProperty.RegisterAttached（
				??“Step“
				??typeof（double）
				??typeof（AutoScrollDecorator）?new?Propertymetadata（16.0））;


		public?static?void?SetStep（Dependencyobject?element?double?value）
		{
			element.SetValue（StepProperty?value）;
		}

		public?static?double?GetStep（Dependencyobject?element）
		{
			return?（double）element.GetValue（StepProperty）;
		}


		static?void?IsEnabledValueChanged（Dependencyobject?depObj?DependencyPropertyChangedEventArgs?e）
		{
			var?view?=?depObj?as?ScrollViewer;
			if?（view?!=?null?&&?e.NewValue?is?bool）
			{
				if?（（bool）e.NewValue）
					view.PreviewMouseMove?+=?ViewPreviewMouseMove;
				else
					view.PreviewMouseMove?-=?ViewPreviewMouseMove;
			}
		}

		private?static?void?ViewPreviewMouseMove（object?sender?MouseEventArgs?e）
		{
			var?_scrollView?=?sender?as?ScrollViewer;
			if?（_scrollView?==?null?||?!（_scrollView.Content?is?Dependencyobject））
				return;
			if?（!GetIsEnabled（（Dependencyobject）_scrollView.Content））
				return;

			var?point?=?e.GetPosition（_scrollView）;
			double?sensivity?=?GetSensivity（_scrollView）;
			double?step?=?GetStep（_scrollView）;
			double?dx?=?0;
			double?dy?=?0;

			if?（point.X?				dx?=?-step;
			else?if?（point.X?>?_scrollView.ActualWidth?-?sensivity）
				dx?=?+step;

			if?（point.Y?				dy?=?-step;
			else?if?（point.Y?>?_scrollView.ActualHeight?-?sensivity）
				dy?=?+step;

			_scrollView.ScrollToHorizontalOffset（_scrollView.HorizontalOffset?+?dx）;
			_scrollView.ScrollToVerticalOffset（_scrollView.VerticalOffset?+?dy）;
		}
	}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1459??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Adorners\DragAdorner.cs

?????文件???????1242??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Adorners\linkAdorner.cs

?????文件????????667??2009-08-28?22:08??WpfDiagrams\Aga.Diagrams\Adorners\MoveResizeAdorner.cs

?????文件????????973??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Adorners\RubberbandAdorner.cs

?????文件????????941??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Adorners\SelectionAdorner.cs

?????文件???????8998??2011-04-22?20:37??WpfDiagrams\Aga.Diagrams\Aga.Diagrams.csproj

?????文件????????452??2011-04-22?20:37??WpfDiagrams\Aga.Diagrams\Aga.Diagrams.csproj.user

?????文件???????2921??2009-07-31?04:39??WpfDiagrams\Aga.Diagrams\AutoScrollDecorator.cs

?????文件??????64000??2012-07-22?21:47??WpfDiagrams\Aga.Diagrams\bin\Debug\Aga.Diagrams.dll

?????文件?????192000??2012-07-22?21:47??WpfDiagrams\Aga.Diagrams\bin\Debug\Aga.Diagrams.pdb

?????文件???????2949??2009-10-16?20:41??WpfDiagrams\Aga.Diagrams\Controls\ClassDiagram.cd

?????文件???????3244??2009-10-16?20:41??WpfDiagrams\Aga.Diagrams\Controls\DiagramItem.cs

?????文件????????910??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\DragThumb.cs

?????文件????????373??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\DragThumbKinds.cs

?????文件????????346??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\links\Ilink.cs

?????文件???????4285??2009-10-16?20:41??WpfDiagrams\Aga.Diagrams\Controls\links\linkbase.cs

?????文件????????802??2009-10-16?22:47??WpfDiagrams\Aga.Diagrams\Controls\links\linkThumb.cs

?????文件????????188??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\links\linkThumbKind.cs

?????文件????????412??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\links\RelinkControl.cs

?????文件???????2605??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\Controls\links\Segmentlink.cs

?????文件????????227??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\Controls\Node\INode.cs

?????文件???????2087??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\Controls\Node\Node.cs

?????文件????????884??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\Controls\Ports\EllipsePort.cs

?????文件????????346??2009-10-16?20:41??WpfDiagrams\Aga.Diagrams\Controls\Ports\IPort.cs

?????文件???????3840??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\Controls\Ports\Portbase.cs

?????文件????????864??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\Controls\Ports\RectPort.cs

?????文件????????416??2009-09-15?21:11??WpfDiagrams\Aga.Diagrams\Controls\Selectionframe.cs

?????文件???????1859??2009-10-01?20:42??WpfDiagrams\Aga.Diagrams\DiagramScrollView.cs

?????文件???????7652??2009-10-19?22:40??WpfDiagrams\Aga.Diagrams\DiagramView.cs

?????文件???????1379??2009-10-01?20:12??WpfDiagrams\Aga.Diagrams\GlobalSuppressions.cs

............此處省略148個文件信息