Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / MS / Internal / PtsHost / UIElementParaClient.cs / 1305600 / UIElementParaClient.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: UIElementParaClient class is responsible for handling display // related data of BlockUIContainers. // //--------------------------------------------------------------------------- using System; // IntPtr using System.Collections.Generic; // Listusing System.Collections.ObjectModel; // ReadOnlyCollection using System.Security; // SecurityCritical using System.Windows; // FrameworkElement using System.Windows.Media; // Visual using System.Windows.Documents; // BlockUIContainer using MS.Internal.Documents; // ParagraphResult, UIElementIsland using MS.Internal.Text; // TextDpi using MS.Internal.PtsHost.UnsafeNativeMethods; // PTS namespace MS.Internal.PtsHost { /// /// FloaterParaClient class is responsible for handling display related /// data of paragraphs associated with nested floaters. /// internal sealed class UIElementParaClient : FloaterBaseParaClient { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors ////// Constructor. /// /// internal UIElementParaClient(FloaterBaseParagraph paragraph) : base(paragraph) { } #endregion Constructors //-------------------------------------------------------------------- // // Internal Methods // //------------------------------------------------------------------- #region Internal Methods ////// Arrange paragraph. /// ////// Critical - as this calls Critical function PTS.FsQueryFloaterDetails /// Safe - The IntPtr parameters passed to PTS.FsQueryFloaterDetails are SecurityCriticalDataForSet /// which ensures that partial trust code won't be able to set it to a random value. /// The textdetails parameter passed to other methods is generated securely in this function. /// [SecurityCritical, SecurityTreatAsSafe] protected override void OnArrange() { base.OnArrange(); PTS.FSFLOATERDETAILS floaterDetails; PTS.Validate(PTS.FsQueryFloaterDetails(PtsContext.Context, _paraHandle.Value, out floaterDetails)); // Get paragraph's rectangle. _rect = floaterDetails.fsrcFloater; MbpInfo mbp = MbpInfo.FromElement(Paragraph.Element); if(ParentFlowDirection != PageFlowDirection) { mbp.MirrorMargin(); PTS.FSRECT pageRect = _pageContext.PageRect; PTS.Validate(PTS.FsTransformRectangle(PTS.FlowDirectionToFswdir(ParentFlowDirection), ref pageRect, ref _rect, PTS.FlowDirectionToFswdir(PageFlowDirection), out _rect)); } _rect.u += mbp.MarginLeft; _rect.du -= mbp.MarginLeft + mbp.MarginRight; _rect.du = Math.Max(TextDpi.ToTextDpi(TextDpi.MinWidth), _rect.du); _rect.dv = Math.Max(TextDpi.ToTextDpi(TextDpi.MinWidth), _rect.dv); } ////// Returns collection of rectangles for the BlockUIContainer element. /// If the element is not the paragraph's owner, empty collection is returned. /// internal override ListGetRectangles(ContentElement e, int start, int length) { List rectangles = new List (); if (Paragraph.Element == e) { // We have found the element. Return rectangles for this paragraph. GetRectanglesForParagraphElement(out rectangles); } return rectangles; } /// /// Validates visual node associated with paragraph. /// internal override void ValidateVisual(PTS.FSKUPDATE fskupdInherited) { // Obtain all mbd info MbpInfo mbp = MbpInfo.FromElement(Paragraph.Element); // MIRROR entire element to interface with underlying layout tree. // Border/Padding does not need to be mirrored, as it'll be mirrored with the content. PtsHelper.UpdateMirroringTransform(PageFlowDirection, ThisFlowDirection, _visual, TextDpi.FromTextDpi(2 * _rect.u + _rect.du)); // Add UIElementIsland to visual tree and set appropiate offset. UIElementIsland uiElementIsland = ((UIElementParagraph)Paragraph).UIElementIsland; if (uiElementIsland != null) { if (_visual.Children.Count != 1 || _visual.Children[0] != uiElementIsland) { // Disconnect UIElementIsland from its old parent. Visual currentParent = VisualTreeHelper.GetParent(uiElementIsland) as Visual; if (currentParent != null) { ContainerVisual parent = currentParent as ContainerVisual; Invariant.Assert(parent != null, "Parent should always derives from ContainerVisual."); parent.Children.Remove(uiElementIsland); } _visual.Children.Clear(); _visual.Children.Add(uiElementIsland); } uiElementIsland.Offset = new PTS.FSVECTOR(_rect.u + mbp.BPLeft, _rect.v + mbp.BPTop).FromTextDpi(); } else { _visual.Children.Clear(); } // Draw background and borders. Brush backgroundBrush = (Brush)Paragraph.Element.GetValue(TextElement.BackgroundProperty); _visual.DrawBackgroundAndBorder(backgroundBrush, mbp.BorderBrush, mbp.Border, _rect.FromTextDpi(), IsFirstChunk, IsLastChunk); } ////// Returns tight bounding path geometry. /// internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition) { if (startPosition.CompareTo(((BlockUIContainer)Paragraph.Element).ContentEnd) < 0 && endPosition.CompareTo(((BlockUIContainer)Paragraph.Element).ContentStart) > 0) { return new RectangleGeometry(_rect.FromTextDpi()); } return null; } ////// Creates paragraph result representing this paragraph. /// ///internal override ParagraphResult CreateParagraphResult() { return new UIElementParagraphResult(this); } /// /// Hit tests to the correct IInputElement within the paragraph that /// the mouse is over. /// internal override IInputElement InputHitTest(PTS.FSPOINT pt) { if (_rect.Contains(pt)) { return Paragraph.Element as IInputElement; } return null; } ////// Returns TextContentRange for the content of the paragraph. /// internal override TextContentRange GetTextContentRange() { BlockUIContainer elementOwner = (BlockUIContainer)Paragraph.Element; return TextContainerHelper.GetTextContentRangeForTextElement(elementOwner); } #endregion Internal Methods } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // Description: UIElementParaClient class is responsible for handling display // related data of BlockUIContainers. // //--------------------------------------------------------------------------- using System; // IntPtr using System.Collections.Generic; // Listusing System.Collections.ObjectModel; // ReadOnlyCollection using System.Security; // SecurityCritical using System.Windows; // FrameworkElement using System.Windows.Media; // Visual using System.Windows.Documents; // BlockUIContainer using MS.Internal.Documents; // ParagraphResult, UIElementIsland using MS.Internal.Text; // TextDpi using MS.Internal.PtsHost.UnsafeNativeMethods; // PTS namespace MS.Internal.PtsHost { /// /// FloaterParaClient class is responsible for handling display related /// data of paragraphs associated with nested floaters. /// internal sealed class UIElementParaClient : FloaterBaseParaClient { //------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------- #region Constructors ////// Constructor. /// /// internal UIElementParaClient(FloaterBaseParagraph paragraph) : base(paragraph) { } #endregion Constructors //-------------------------------------------------------------------- // // Internal Methods // //------------------------------------------------------------------- #region Internal Methods ////// Arrange paragraph. /// ////// Critical - as this calls Critical function PTS.FsQueryFloaterDetails /// Safe - The IntPtr parameters passed to PTS.FsQueryFloaterDetails are SecurityCriticalDataForSet /// which ensures that partial trust code won't be able to set it to a random value. /// The textdetails parameter passed to other methods is generated securely in this function. /// [SecurityCritical, SecurityTreatAsSafe] protected override void OnArrange() { base.OnArrange(); PTS.FSFLOATERDETAILS floaterDetails; PTS.Validate(PTS.FsQueryFloaterDetails(PtsContext.Context, _paraHandle.Value, out floaterDetails)); // Get paragraph's rectangle. _rect = floaterDetails.fsrcFloater; MbpInfo mbp = MbpInfo.FromElement(Paragraph.Element); if(ParentFlowDirection != PageFlowDirection) { mbp.MirrorMargin(); PTS.FSRECT pageRect = _pageContext.PageRect; PTS.Validate(PTS.FsTransformRectangle(PTS.FlowDirectionToFswdir(ParentFlowDirection), ref pageRect, ref _rect, PTS.FlowDirectionToFswdir(PageFlowDirection), out _rect)); } _rect.u += mbp.MarginLeft; _rect.du -= mbp.MarginLeft + mbp.MarginRight; _rect.du = Math.Max(TextDpi.ToTextDpi(TextDpi.MinWidth), _rect.du); _rect.dv = Math.Max(TextDpi.ToTextDpi(TextDpi.MinWidth), _rect.dv); } ////// Returns collection of rectangles for the BlockUIContainer element. /// If the element is not the paragraph's owner, empty collection is returned. /// internal override ListGetRectangles(ContentElement e, int start, int length) { List rectangles = new List (); if (Paragraph.Element == e) { // We have found the element. Return rectangles for this paragraph. GetRectanglesForParagraphElement(out rectangles); } return rectangles; } /// /// Validates visual node associated with paragraph. /// internal override void ValidateVisual(PTS.FSKUPDATE fskupdInherited) { // Obtain all mbd info MbpInfo mbp = MbpInfo.FromElement(Paragraph.Element); // MIRROR entire element to interface with underlying layout tree. // Border/Padding does not need to be mirrored, as it'll be mirrored with the content. PtsHelper.UpdateMirroringTransform(PageFlowDirection, ThisFlowDirection, _visual, TextDpi.FromTextDpi(2 * _rect.u + _rect.du)); // Add UIElementIsland to visual tree and set appropiate offset. UIElementIsland uiElementIsland = ((UIElementParagraph)Paragraph).UIElementIsland; if (uiElementIsland != null) { if (_visual.Children.Count != 1 || _visual.Children[0] != uiElementIsland) { // Disconnect UIElementIsland from its old parent. Visual currentParent = VisualTreeHelper.GetParent(uiElementIsland) as Visual; if (currentParent != null) { ContainerVisual parent = currentParent as ContainerVisual; Invariant.Assert(parent != null, "Parent should always derives from ContainerVisual."); parent.Children.Remove(uiElementIsland); } _visual.Children.Clear(); _visual.Children.Add(uiElementIsland); } uiElementIsland.Offset = new PTS.FSVECTOR(_rect.u + mbp.BPLeft, _rect.v + mbp.BPTop).FromTextDpi(); } else { _visual.Children.Clear(); } // Draw background and borders. Brush backgroundBrush = (Brush)Paragraph.Element.GetValue(TextElement.BackgroundProperty); _visual.DrawBackgroundAndBorder(backgroundBrush, mbp.BorderBrush, mbp.Border, _rect.FromTextDpi(), IsFirstChunk, IsLastChunk); } ////// Returns tight bounding path geometry. /// internal Geometry GetTightBoundingGeometryFromTextPositions(ITextPointer startPosition, ITextPointer endPosition) { if (startPosition.CompareTo(((BlockUIContainer)Paragraph.Element).ContentEnd) < 0 && endPosition.CompareTo(((BlockUIContainer)Paragraph.Element).ContentStart) > 0) { return new RectangleGeometry(_rect.FromTextDpi()); } return null; } ////// Creates paragraph result representing this paragraph. /// ///internal override ParagraphResult CreateParagraphResult() { return new UIElementParagraphResult(this); } /// /// Hit tests to the correct IInputElement within the paragraph that /// the mouse is over. /// internal override IInputElement InputHitTest(PTS.FSPOINT pt) { if (_rect.Contains(pt)) { return Paragraph.Element as IInputElement; } return null; } ////// Returns TextContentRange for the content of the paragraph. /// internal override TextContentRange GetTextContentRange() { BlockUIContainer elementOwner = (BlockUIContainer)Paragraph.Element; return TextContainerHelper.GetTextContentRangeForTextElement(elementOwner); } #endregion Internal Methods } } // 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
- DropDownButton.cs
- TextControl.cs
- NominalTypeEliminator.cs
- TagPrefixAttribute.cs
- ServiceOperation.cs
- XmlSerializableServices.cs
- BinaryParser.cs
- ControlPaint.cs
- KeyTimeConverter.cs
- DirectoryLocalQuery.cs
- TypeResolver.cs
- ListSourceHelper.cs
- LocalizedNameDescriptionPair.cs
- BindingMemberInfo.cs
- Crypto.cs
- TypeResolver.cs
- DiscoveryClientReferences.cs
- TableLayoutSettings.cs
- XmlLinkedNode.cs
- AutomationEventArgs.cs
- HwndSourceParameters.cs
- Debug.cs
- Baml2006SchemaContext.cs
- ConnectionPoint.cs
- SHA256.cs
- WebServiceClientProxyGenerator.cs
- Transform3DGroup.cs
- GatewayDefinition.cs
- EditorAttribute.cs
- BamlMapTable.cs
- RemoteWebConfigurationHostServer.cs
- HostingPreferredMapPath.cs
- DefaultWorkflowSchedulerService.cs
- SessionPageStateSection.cs
- ComPlusDiagnosticTraceRecords.cs
- SystemWebCachingSectionGroup.cs
- SubclassTypeValidator.cs
- XPathNavigatorReader.cs
- RequestQueue.cs
- TableLayoutStyle.cs
- DbReferenceCollection.cs
- Grammar.cs
- DrawingCollection.cs
- SqlErrorCollection.cs
- NativeMethods.cs
- ButtonBase.cs
- ResXFileRef.cs
- ViewRendering.cs
- WindowsAltTab.cs
- QueryStringConverter.cs
- StorageEntityContainerMapping.cs
- Rotation3D.cs
- WindowsPrincipal.cs
- StringValidator.cs
- TdsParameterSetter.cs
- AndCondition.cs
- precedingquery.cs
- TypeGeneratedEventArgs.cs
- TreeSet.cs
- XPathItem.cs
- InternalTypeHelper.cs
- PropertyGridView.cs
- Cursor.cs
- FontStretches.cs
- AccessDataSourceDesigner.cs
- HitTestWithGeometryDrawingContextWalker.cs
- VSDExceptions.cs
- XmlSchemaSimpleContent.cs
- TextWriterTraceListener.cs
- httpserverutility.cs
- ExtensibleClassFactory.cs
- RelOps.cs
- RuntimeConfigLKG.cs
- SystemIPv4InterfaceProperties.cs
- StorageInfo.cs
- DataGridViewControlCollection.cs
- ViewStateModeByIdAttribute.cs
- cookiecontainer.cs
- ComplexBindingPropertiesAttribute.cs
- UInt32.cs
- VectorCollectionValueSerializer.cs
- RelationshipFixer.cs
- SvcMapFileLoader.cs
- AutomationPropertyInfo.cs
- HtmlControlPersistable.cs
- BlurBitmapEffect.cs
- CacheRequest.cs
- SqlProviderManifest.cs
- WebGetAttribute.cs
- AuthStoreRoleProvider.cs
- DesignTimeDataBinding.cs
- PartialToken.cs
- Utilities.cs
- DocumentPageView.cs
- _CookieModule.cs
- ToolStripGrip.cs
- StringSource.cs
- XamlSerializer.cs
- PrintControllerWithStatusDialog.cs
- SystemException.cs