Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Framework / MS / Internal / Text / LineMetrics.cs / 1 / LineMetrics.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: LineMetrics.cs // // Description: Cached metrics of a text line. // // History: // 04/25/2003 : grzegorz - moving from Avalon branch. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Windows; using System.Windows.Media; using System.Windows.Media.TextFormatting; namespace MS.Internal.Text { // --------------------------------------------------------------------- // Storage for metrics of a formatted line. // --------------------------------------------------------------------- internal struct LineMetrics { // ------------------------------------------------------------------ // Constructor. // // wrappingWidth - wrapping width for the line // length - number or characters in the line // width - width of the line // height - height of the line // baseline - baseline of the line // hasInlineObjects - has inline objects? // ----------------------------------------------------------------- internal LineMetrics( #if DEBUG double wrappingWidth, #endif int length, double width, double height, double baseline, bool hasInlineObjects, TextLineBreak textLineBreak) { #if DEBUG _wrappingWidth = wrappingWidth; #endif _start = 0; _width = width; _height = height; _baseline = baseline; _textLineBreak = textLineBreak; _packedData = ((uint) length & LengthMask) | (hasInlineObjects ? HasInlineObjectsMask : 0); } internal LineMetrics(LineMetrics source, double start, double width) { #if DEBUG _wrappingWidth = source.WrappingWidth; #endif _start = start; _width = width; _height = source.Height; _baseline = source.Baseline; _textLineBreak = source.TextLineBreak; _packedData = source._packedData | HasBeenUpdatedMask; } ////// Disposes linebreak object /// internal LineMetrics Dispose(bool returnUpdatedMetrics) { if(_textLineBreak != null) { _textLineBreak.Dispose(); if (returnUpdatedMetrics) { return new LineMetrics( #if DEBUG _wrappingWidth, #endif Length, _width, _height, _baseline, HasInlineObjects, null); } } return this; } #if DEBUG // ------------------------------------------------------------------ // Wrapping width for the line. // ------------------------------------------------------------------ internal double WrappingWidth { get { return _wrappingWidth; } } private double _wrappingWidth; #endif // ----------------------------------------------------------------- // Number or characters in the line. // ------------------------------------------------------------------ internal int Length { get { return (int) (_packedData & LengthMask); } } private uint _packedData; // ----------------------------------------------------------------- // Width of the line. // ----------------------------------------------------------------- internal double Width { get { Debug.Assert((_packedData & HasBeenUpdatedMask) != 0); return _width; } } private double _width; // ----------------------------------------------------------------- // Height of the line. // ------------------------------------------------------------------ internal double Height { get { return _height; } } private double _height; // ----------------------------------------------------------------- // Start of the line. Distance from paragraph edge to line start. // ------------------------------------------------------------------ internal double Start { get { Debug.Assert((_packedData & HasBeenUpdatedMask) != 0); return _start; } } private double _start; // ------------------------------------------------------------------ // Baseline offset of the line. // ----------------------------------------------------------------- internal double Baseline { get { return _baseline; } } private double _baseline; // ------------------------------------------------------------------ // Has inline objects? // ----------------------------------------------------------------- internal bool HasInlineObjects { get { return (_packedData & HasInlineObjectsMask) != 0; } } // ----------------------------------------------------------------- // Line break for formatting. (Line Break In) // ----------------------------------------------------------------- internal TextLineBreak TextLineBreak { get { return _textLineBreak; } } private TextLineBreak _textLineBreak; private static readonly uint HasBeenUpdatedMask = 0x40000000; private static readonly uint LengthMask = 0x3FFFFFFF; private static readonly uint HasInlineObjectsMask = 0x80000000; } } // 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. // // File: LineMetrics.cs // // Description: Cached metrics of a text line. // // History: // 04/25/2003 : grzegorz - moving from Avalon branch. // //--------------------------------------------------------------------------- using System; using System.Diagnostics; using System.Windows; using System.Windows.Media; using System.Windows.Media.TextFormatting; namespace MS.Internal.Text { // --------------------------------------------------------------------- // Storage for metrics of a formatted line. // --------------------------------------------------------------------- internal struct LineMetrics { // ------------------------------------------------------------------ // Constructor. // // wrappingWidth - wrapping width for the line // length - number or characters in the line // width - width of the line // height - height of the line // baseline - baseline of the line // hasInlineObjects - has inline objects? // ----------------------------------------------------------------- internal LineMetrics( #if DEBUG double wrappingWidth, #endif int length, double width, double height, double baseline, bool hasInlineObjects, TextLineBreak textLineBreak) { #if DEBUG _wrappingWidth = wrappingWidth; #endif _start = 0; _width = width; _height = height; _baseline = baseline; _textLineBreak = textLineBreak; _packedData = ((uint) length & LengthMask) | (hasInlineObjects ? HasInlineObjectsMask : 0); } internal LineMetrics(LineMetrics source, double start, double width) { #if DEBUG _wrappingWidth = source.WrappingWidth; #endif _start = start; _width = width; _height = source.Height; _baseline = source.Baseline; _textLineBreak = source.TextLineBreak; _packedData = source._packedData | HasBeenUpdatedMask; } ////// Disposes linebreak object /// internal LineMetrics Dispose(bool returnUpdatedMetrics) { if(_textLineBreak != null) { _textLineBreak.Dispose(); if (returnUpdatedMetrics) { return new LineMetrics( #if DEBUG _wrappingWidth, #endif Length, _width, _height, _baseline, HasInlineObjects, null); } } return this; } #if DEBUG // ------------------------------------------------------------------ // Wrapping width for the line. // ------------------------------------------------------------------ internal double WrappingWidth { get { return _wrappingWidth; } } private double _wrappingWidth; #endif // ----------------------------------------------------------------- // Number or characters in the line. // ------------------------------------------------------------------ internal int Length { get { return (int) (_packedData & LengthMask); } } private uint _packedData; // ----------------------------------------------------------------- // Width of the line. // ----------------------------------------------------------------- internal double Width { get { Debug.Assert((_packedData & HasBeenUpdatedMask) != 0); return _width; } } private double _width; // ----------------------------------------------------------------- // Height of the line. // ------------------------------------------------------------------ internal double Height { get { return _height; } } private double _height; // ----------------------------------------------------------------- // Start of the line. Distance from paragraph edge to line start. // ------------------------------------------------------------------ internal double Start { get { Debug.Assert((_packedData & HasBeenUpdatedMask) != 0); return _start; } } private double _start; // ------------------------------------------------------------------ // Baseline offset of the line. // ----------------------------------------------------------------- internal double Baseline { get { return _baseline; } } private double _baseline; // ------------------------------------------------------------------ // Has inline objects? // ----------------------------------------------------------------- internal bool HasInlineObjects { get { return (_packedData & HasInlineObjectsMask) != 0; } } // ----------------------------------------------------------------- // Line break for formatting. (Line Break In) // ----------------------------------------------------------------- internal TextLineBreak TextLineBreak { get { return _textLineBreak; } } private TextLineBreak _textLineBreak; private static readonly uint HasBeenUpdatedMask = 0x40000000; private static readonly uint LengthMask = 0x3FFFFFFF; private static readonly uint HasInlineObjectsMask = 0x80000000; } } // 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
- Models.cs
- HtmlForm.cs
- HwndHost.cs
- ApplicationFileCodeDomTreeGenerator.cs
- DataSourceView.cs
- DoubleLink.cs
- EntityType.cs
- HttpServerChannel.cs
- EngineSiteSapi.cs
- SoapFault.cs
- DefaultDiscoveryService.cs
- HostVisual.cs
- SmtpSection.cs
- TableSectionStyle.cs
- ByteRangeDownloader.cs
- SecondaryViewProvider.cs
- RoutedEvent.cs
- DataGridViewTextBoxEditingControl.cs
- AVElementHelper.cs
- ZoneMembershipCondition.cs
- ObjectStateFormatter.cs
- TrustManagerMoreInformation.cs
- OrderByExpression.cs
- TextProperties.cs
- BaseProcessor.cs
- ValidatedControlConverter.cs
- TypeResolvingOptionsAttribute.cs
- UIElementIsland.cs
- SelectorItemAutomationPeer.cs
- TcpChannelHelper.cs
- Matrix3D.cs
- SqlDataSourceTableQuery.cs
- PiiTraceSource.cs
- DefaultTextStoreTextComposition.cs
- HtmlSelect.cs
- AppDomainProtocolHandler.cs
- SafeFileMapViewHandle.cs
- LinqDataSourceInsertEventArgs.cs
- TdsEnums.cs
- StateDesigner.CommentLayoutGlyph.cs
- CommandField.cs
- HostedElements.cs
- BypassElementCollection.cs
- DesignerRegion.cs
- PublishLicense.cs
- BuildProviderAppliesToAttribute.cs
- DialogResultConverter.cs
- WebPartVerbsEventArgs.cs
- BamlLocalizableResourceKey.cs
- AppDomainManager.cs
- KeyEventArgs.cs
- DelegateSerializationHolder.cs
- AnimatedTypeHelpers.cs
- SimpleHandlerFactory.cs
- OrderedDictionaryStateHelper.cs
- SamlConditions.cs
- XamlParser.cs
- X509AudioLogo.cs
- CompositeTypefaceMetrics.cs
- DataList.cs
- QilReference.cs
- WebPartAuthorizationEventArgs.cs
- ObjectNavigationPropertyMapping.cs
- Exception.cs
- OrderedEnumerableRowCollection.cs
- ConfigurationManagerInternalFactory.cs
- TextBox.cs
- WebPartCollection.cs
- PersonalizationAdministration.cs
- TextBounds.cs
- CacheAxisQuery.cs
- XmlMapping.cs
- ConfigXmlWhitespace.cs
- GrammarBuilderBase.cs
- DescendantBaseQuery.cs
- VirtualDirectoryMappingCollection.cs
- ConversionContext.cs
- CollectionViewProxy.cs
- ContainsSearchOperator.cs
- TraceContextRecord.cs
- DesignSurface.cs
- StrokeNode.cs
- EllipseGeometry.cs
- ClientEventManager.cs
- FontCacheLogic.cs
- BamlLocalizableResource.cs
- XmlSchemaSimpleType.cs
- SharedConnectionWorkflowTransactionService.cs
- WorkflowServiceHost.cs
- PreloadHost.cs
- XamlFigureLengthSerializer.cs
- RSACryptoServiceProvider.cs
- XPathNodeInfoAtom.cs
- _TLSstream.cs
- SchemaSetCompiler.cs
- basecomparevalidator.cs
- AttachedProperty.cs
- MessageSecurityProtocol.cs
- DbExpressionRules.cs
- ExpressionSelection.cs