Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / MS / Internal / Controls / TemplatedAdorner.cs / 1 / TemplatedAdorner.cs
//---------------------------------------------------------------------------- // //// Copyright (C) 2005 by Microsoft Corporation. All rights reserved. // // // // Description: // TemplatedAdorner applies the style provided in the ctor to a // control and provides a transform via GetDesiredTransform that // will cause the AdornedElementPlaceholder to be positioned directly // over the AdornedElement. // // See specs at http://avalon/connecteddata/Specs/Validation.mht // // History: // 02/01/2005 mharper: created. // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Diagnostics; using System.Windows.Media; using System.Windows; using System.Windows.Data; using System.Windows.Controls; using System.Windows.Documents; using MS.Utility; namespace MS.Internal.Controls { ////// This class is sealed because it calls OnVisualChildrenChanged virtual in the /// constructor and it does not override it, but derived classes could. /// internal sealed class TemplatedAdorner: Adorner { private Control _child; ////// The clear the single child of a TemplatedAdorner /// public void ClearChild() { this.RemoveVisualChild(_child); _child = null; } public TemplatedAdorner(UIElement adornedElement, ControlTemplate adornerTemplate) : base(adornedElement) { Debug.Assert(adornedElement != null, "adornedElement should not be null"); Debug.Assert(adornerTemplate != null, "adornerTemplate should not be null"); Control control = new Control(); control.DataContext = Validation.GetErrors(adornedElement); //control.IsEnabled = false; // Hittest should not work on visual subtree control.Template = adornerTemplate; _child = control; this.AddVisualChild(_child); } ////// Adorners don't always want to be transformed in the same way as the elements they /// adorn. Adorners which adorn points, such as resize handles, want to be translated /// and rotated but not scaled. Adorners adorning an object, like a marquee, may want /// all transforms. This method is called by AdornerLayer to allow the adorner to /// filter out the transforms it doesn't want and return a new transform with just the /// transforms it wants applied. An adorner can also add an additional translation /// transform at this time, allowing it to be positioned somewhere other than the upper /// left corner of its adorned element. /// /// The transform applied to the object the adorner adorns ///Transform to apply to the adorner public override GeneralTransform GetDesiredTransform(GeneralTransform transform) { if (ReferenceElement == null) return transform; GeneralTransformGroup group = new GeneralTransformGroup(); group.Children.Add(transform); GeneralTransform t = this.TransformToDescendant(ReferenceElement); if (t != null) { group.Children.Add(t); } return group; } public FrameworkElement ReferenceElement { get { return _referenceElement; } set { _referenceElement = value; } } ////// Derived class must implement to support Visual children. The method must return /// the child at the specified index. Index must be between 0 and GetVisualChildrenCount-1. /// /// By default a Visual does not have any children. /// /// Remark: /// During this virtual call it is not valid to modify the Visual tree. /// protected override Visual GetVisualChild(int index) { if(_child == null || index != 0) { throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } return _child; } ////// Derived classes override this property to enable the Visual code to enumerate /// the Visual children. Derived classes need to return the number of children /// from this method. /// /// By default a Visual does not have any children. /// /// Remark: During this virtual method the Visual tree must not be modified. /// protected override int VisualChildrenCount { get { return _child != null ? 1 : 0; } } ////// Measure adorner. Default behavior is to size to match the adorned element. /// protected override Size MeasureOverride(Size constraint) { Debug.Assert(_child != null, "_child should not be null"); if (ReferenceElement != null && AdornedElement != null && AdornedElement.IsMeasureValid && !DoubleUtil.AreClose(ReferenceElement.DesiredSize, AdornedElement.DesiredSize) ) { ReferenceElement.InvalidateMeasure(); } (_child).Measure(constraint); return (_child).DesiredSize; } ////// Default control arrangement is to only arrange /// the first visual child. No transforms will be applied. /// protected override Size ArrangeOverride(Size size) { Size finalSize; finalSize = base.ArrangeOverride(size); if (_child != null) { _child.Arrange(new Rect(new Point(), finalSize)); } return finalSize; } private FrameworkElement _referenceElement; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // //// Copyright (C) 2005 by Microsoft Corporation. All rights reserved. // // // // Description: // TemplatedAdorner applies the style provided in the ctor to a // control and provides a transform via GetDesiredTransform that // will cause the AdornedElementPlaceholder to be positioned directly // over the AdornedElement. // // See specs at http://avalon/connecteddata/Specs/Validation.mht // // History: // 02/01/2005 mharper: created. // //--------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Specialized; using System.ComponentModel; using System.Diagnostics; using System.Windows.Media; using System.Windows; using System.Windows.Data; using System.Windows.Controls; using System.Windows.Documents; using MS.Utility; namespace MS.Internal.Controls { ////// This class is sealed because it calls OnVisualChildrenChanged virtual in the /// constructor and it does not override it, but derived classes could. /// internal sealed class TemplatedAdorner: Adorner { private Control _child; ////// The clear the single child of a TemplatedAdorner /// public void ClearChild() { this.RemoveVisualChild(_child); _child = null; } public TemplatedAdorner(UIElement adornedElement, ControlTemplate adornerTemplate) : base(adornedElement) { Debug.Assert(adornedElement != null, "adornedElement should not be null"); Debug.Assert(adornerTemplate != null, "adornerTemplate should not be null"); Control control = new Control(); control.DataContext = Validation.GetErrors(adornedElement); //control.IsEnabled = false; // Hittest should not work on visual subtree control.Template = adornerTemplate; _child = control; this.AddVisualChild(_child); } ////// Adorners don't always want to be transformed in the same way as the elements they /// adorn. Adorners which adorn points, such as resize handles, want to be translated /// and rotated but not scaled. Adorners adorning an object, like a marquee, may want /// all transforms. This method is called by AdornerLayer to allow the adorner to /// filter out the transforms it doesn't want and return a new transform with just the /// transforms it wants applied. An adorner can also add an additional translation /// transform at this time, allowing it to be positioned somewhere other than the upper /// left corner of its adorned element. /// /// The transform applied to the object the adorner adorns ///Transform to apply to the adorner public override GeneralTransform GetDesiredTransform(GeneralTransform transform) { if (ReferenceElement == null) return transform; GeneralTransformGroup group = new GeneralTransformGroup(); group.Children.Add(transform); GeneralTransform t = this.TransformToDescendant(ReferenceElement); if (t != null) { group.Children.Add(t); } return group; } public FrameworkElement ReferenceElement { get { return _referenceElement; } set { _referenceElement = value; } } ////// Derived class must implement to support Visual children. The method must return /// the child at the specified index. Index must be between 0 and GetVisualChildrenCount-1. /// /// By default a Visual does not have any children. /// /// Remark: /// During this virtual call it is not valid to modify the Visual tree. /// protected override Visual GetVisualChild(int index) { if(_child == null || index != 0) { throw new ArgumentOutOfRangeException("index", index, SR.Get(SRID.Visual_ArgumentOutOfRange)); } return _child; } ////// Derived classes override this property to enable the Visual code to enumerate /// the Visual children. Derived classes need to return the number of children /// from this method. /// /// By default a Visual does not have any children. /// /// Remark: During this virtual method the Visual tree must not be modified. /// protected override int VisualChildrenCount { get { return _child != null ? 1 : 0; } } ////// Measure adorner. Default behavior is to size to match the adorned element. /// protected override Size MeasureOverride(Size constraint) { Debug.Assert(_child != null, "_child should not be null"); if (ReferenceElement != null && AdornedElement != null && AdornedElement.IsMeasureValid && !DoubleUtil.AreClose(ReferenceElement.DesiredSize, AdornedElement.DesiredSize) ) { ReferenceElement.InvalidateMeasure(); } (_child).Measure(constraint); return (_child).DesiredSize; } ////// Default control arrangement is to only arrange /// the first visual child. No transforms will be applied. /// protected override Size ArrangeOverride(Size size) { Size finalSize; finalSize = base.ArrangeOverride(size); if (_child != null) { _child.Arrange(new Rect(new Point(), finalSize)); } return finalSize; } private FrameworkElement _referenceElement; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TdsParserStateObject.cs
- CompositeFontInfo.cs
- RegexCharClass.cs
- BitmapEffectDrawingContextWalker.cs
- EventMappingSettingsCollection.cs
- App.cs
- PriorityQueue.cs
- CustomGrammar.cs
- XsltArgumentList.cs
- Volatile.cs
- FormViewInsertEventArgs.cs
- ComponentGlyph.cs
- WSHttpSecurityElement.cs
- DataGridLengthConverter.cs
- GenericEnumConverter.cs
- WindowsSysHeader.cs
- PublisherIdentityPermission.cs
- FormatSettings.cs
- RelationalExpressions.cs
- RuntimeIdentifierPropertyAttribute.cs
- DeviceContexts.cs
- ProjectedWrapper.cs
- TransformGroup.cs
- PrintEvent.cs
- CacheVirtualItemsEvent.cs
- TemplatingOptionsDialog.cs
- LayoutSettings.cs
- storepermissionattribute.cs
- Utils.cs
- FastEncoderWindow.cs
- XmlIgnoreAttribute.cs
- UnsafeNativeMethods.cs
- PageRanges.cs
- DataServiceQueryProvider.cs
- RoleManagerSection.cs
- Symbol.cs
- ApplicationContext.cs
- UniqueIdentifierService.cs
- GradientStop.cs
- DataKeyCollection.cs
- UniqueEventHelper.cs
- ObjectListField.cs
- ScrollItemPattern.cs
- DiscoveryServerProtocol.cs
- DeflateInput.cs
- ProjectionCamera.cs
- DeploymentSection.cs
- SecurityChannel.cs
- HitTestWithPointDrawingContextWalker.cs
- AssemblySettingAttributes.cs
- SQLSingleStorage.cs
- ConfigXmlSignificantWhitespace.cs
- FontStretch.cs
- XamlSerializerUtil.cs
- TextTreeTextBlock.cs
- XmlSchemaImporter.cs
- PrimitiveSchema.cs
- UnitySerializationHolder.cs
- HwndSource.cs
- SemanticAnalyzer.cs
- CorruptingExceptionCommon.cs
- CuspData.cs
- MenuItemStyle.cs
- LinearGradientBrush.cs
- BindingContext.cs
- MatrixTransform.cs
- AutoGeneratedField.cs
- QueueProcessor.cs
- InfoCardRSAPKCS1SignatureDeformatter.cs
- BmpBitmapDecoder.cs
- SafeFindHandle.cs
- LassoSelectionBehavior.cs
- OutputCacheSection.cs
- ColorConvertedBitmap.cs
- PreservationFileReader.cs
- SafeSystemMetrics.cs
- BindingSourceDesigner.cs
- SiteMapDataSourceDesigner.cs
- MenuEventArgs.cs
- __Filters.cs
- MimeWriter.cs
- AdjustableArrowCap.cs
- DriveInfo.cs
- PropertyValueUIItem.cs
- EmptyStringExpandableObjectConverter.cs
- DataGridViewEditingControlShowingEventArgs.cs
- KeyedCollection.cs
- TearOffProxy.cs
- OleDbParameterCollection.cs
- FontInfo.cs
- ListViewGroup.cs
- RegexGroupCollection.cs
- ObjectList.cs
- SocketSettings.cs
- ServerIdentity.cs
- LocalServiceSecuritySettings.cs
- _ListenerAsyncResult.cs
- UIElementParaClient.cs
- EnumBuilder.cs
- SqlDataAdapter.cs