Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Framework / MS / Internal / Text / InlineObject.cs / 1 / InlineObject.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: InlineObject.cs // // Description: Cached metrics of an inline objects. // // History: // 04/25/2003 : [....] - moving from Avalon branch. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Windows; using System.Windows.Controls; using System.Windows.Media; using System.Windows.Media.TextFormatting; using MS.Internal; namespace MS.Internal.Text { ////// Inline object representation as TextRun. /// internal sealed class InlineObject: TextEmbeddedObject { ////// Constructor. /// /// Text position of the inline object in the text array. /// Number of text position in the text array occupied by the inline object. /// UIElement representing the inline object. /// Text run properties for the inline object. /// TextBlock element - the host of the inline object. internal InlineObject(int dcp, int cch, UIElement element, TextRunProperties textProps, System.Windows.Controls.TextBlock host) { _dcp = dcp; _cch = cch; _element = element; _textProps = textProps; _host = host; } ////// Get inline object's measurement metrics. /// /// Remaining paragraph width. ///Inline object metrics. public override TextEmbeddedObjectMetrics Format(double remainingParagraphWidth) { Size desiredSize = _host.MeasureChild(this); // Make sure that LS/PTS limitations are not exceeded for object's size. TextDpi.EnsureValidObjSize(ref desiredSize); double baseline = desiredSize.Height; double baselineOffsetValue = (double) Element.GetValue(TextBlock.BaselineOffsetProperty); if(!DoubleUtil.IsNaN(baselineOffsetValue)) { baseline = baselineOffsetValue; } return new TextEmbeddedObjectMetrics(desiredSize.Width, desiredSize.Height, baseline); } ////// Get computed bounding box of the inline object. /// /// Run is drawn from right to left. /// Run is drawn with its side parallel to baseline. ///Computed bounding box size of text object. public override Rect ComputeBoundingBox(bool rightToLeft, bool sideways) { if (_element.IsArrangeValid) { // Initially assume that bounding box is the same as layout box. Size size = _element.DesiredSize; double baseline = !sideways ? size.Height : size.Width; double baselineOffsetValue = (double)Element.GetValue(TextBlock.BaselineOffsetProperty); if (!sideways && !DoubleUtil.IsNaN(baselineOffsetValue)) { baseline = (double)baselineOffsetValue; } return new Rect(0, -baseline, sideways ? size.Height : size.Width, sideways ? size.Width : size.Height); } else { return Rect.Empty; } } ////// Draw the inline object. /// /// Drawing context. /// Origin where the object is drawn. /// Run is drawn from right to left. /// Run is drawn with its side parallel to baseline. public override void Draw(DrawingContext drawingContext, Point origin, bool rightToLeft, bool sideways) { // Inline object has its own visual and it is attached to a visual // tree during arrange process. // Do nothing here. } ////// Reference to character buffer. /// public override CharacterBufferReference CharacterBufferReference { get { return new CharacterBufferReference(String.Empty, 0); } } ////// Length of the inline object run. /// public override int Length { get { return _cch; } } ////// A set of properties shared by every characters in the run /// public override TextRunProperties Properties { get { return _textProps; } } ////// Line break condition before the inline object. /// public override LineBreakCondition BreakBefore { get { return LineBreakCondition.BreakDesired; } } ////// Line break condition after the inline object. /// public override LineBreakCondition BreakAfter { get { return LineBreakCondition.BreakDesired; } } ////// Flag indicates whether inline object has fixed size regardless of where /// it is placed within a line. /// public override bool HasFixedSize { get { // Size of inline object is not dependent on position in the line. return true; } } ////// Text position on the inline object in the text array. /// internal int Dcp { get { return _dcp; } } ////// UIElement representing the inline object. /// internal UIElement Element { get { return _element; } } ////// Text position on the inline object in the text array. /// private readonly int _dcp; ////// Number of text position in the text array occupied by the inline object. /// private readonly int _cch; ////// UIElement representing the inline object. /// private readonly UIElement _element; ////// Text run properties for the inline object. /// private readonly TextRunProperties _textProps; ////// Text element - the host of the inline object. /// private readonly System.Windows.Controls.TextBlock _host; } } // 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
- DataConnectionHelper.cs
- DPCustomTypeDescriptor.cs
- XmlSchemaGroup.cs
- UrlPropertyAttribute.cs
- ConfigXmlSignificantWhitespace.cs
- PrimitiveSchema.cs
- Int32AnimationUsingKeyFrames.cs
- UnsafeNativeMethods.cs
- X509SubjectKeyIdentifierClause.cs
- DescriptionAttribute.cs
- AttachedAnnotationChangedEventArgs.cs
- SqlClientWrapperSmiStreamChars.cs
- DnsEndPoint.cs
- TypedTableBase.cs
- WebConfigurationManager.cs
- Pair.cs
- DbDataRecord.cs
- SuppressMessageAttribute.cs
- Scene3D.cs
- FloaterBaseParaClient.cs
- NullableFloatAverageAggregationOperator.cs
- DefaultSection.cs
- SqlPersonalizationProvider.cs
- EncoderParameter.cs
- InputBindingCollection.cs
- UserPreferenceChangedEventArgs.cs
- XmlSecureResolver.cs
- RegisteredArrayDeclaration.cs
- OperationGenerator.cs
- ListCollectionView.cs
- TypeDependencyAttribute.cs
- CacheHelper.cs
- MemberRelationshipService.cs
- ProcessModelInfo.cs
- SymLanguageVendor.cs
- rsa.cs
- UdpUtility.cs
- XsltLoader.cs
- XmlTypeMapping.cs
- XamlReaderHelper.cs
- XmlQueryStaticData.cs
- AssociationEndMember.cs
- DecoderFallbackWithFailureFlag.cs
- MarkupProperty.cs
- PenCursorManager.cs
- SourceFilter.cs
- CharacterShapingProperties.cs
- XmlStrings.cs
- TypePresenter.xaml.cs
- AppDomain.cs
- FrameAutomationPeer.cs
- EpmContentDeSerializerBase.cs
- TextServicesDisplayAttributePropertyRanges.cs
- MediaElement.cs
- XmlSchemaExternal.cs
- BodyGlyph.cs
- RenderData.cs
- DataColumn.cs
- QilInvokeLateBound.cs
- AnnotationComponentChooser.cs
- CheckBoxDesigner.cs
- InitializeCorrelation.cs
- ToolStripItemTextRenderEventArgs.cs
- EditorZone.cs
- DataViewManagerListItemTypeDescriptor.cs
- OracleConnectionString.cs
- DataSourceControlBuilder.cs
- SubqueryTrackingVisitor.cs
- AssociationSetEnd.cs
- WebScriptMetadataMessageEncoderFactory.cs
- DbDataReader.cs
- ParallelTimeline.cs
- ControlLocalizer.cs
- ReturnEventArgs.cs
- ListSourceHelper.cs
- CaseExpr.cs
- FileChangesMonitor.cs
- ToolStripSplitButton.cs
- DecimalKeyFrameCollection.cs
- SynchronizationLockException.cs
- SelectionRange.cs
- PersonalizablePropertyEntry.cs
- TextEditorCharacters.cs
- BinaryNode.cs
- SchemaElementLookUpTable.cs
- UseAttributeSetsAction.cs
- InfoCardMasterKey.cs
- DecimalStorage.cs
- WebBrowserHelper.cs
- MinimizableAttributeTypeConverter.cs
- XmlUtil.cs
- DocumentXmlWriter.cs
- Choices.cs
- AsymmetricKeyExchangeDeformatter.cs
- Compiler.cs
- XhtmlStyleClass.cs
- TransformerInfoCollection.cs
- Vector3DAnimationBase.cs
- Crypto.cs
- WebContentFormatHelper.cs