Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / 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 : [....] - 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
- ObjectSelectorEditor.cs
- DataRowView.cs
- LinkDescriptor.cs
- HwndKeyboardInputProvider.cs
- XmlAttributeCollection.cs
- HyperLinkField.cs
- InputLangChangeRequestEvent.cs
- RowToFieldTransformer.cs
- SecurityKeyEntropyMode.cs
- WebException.cs
- JapaneseCalendar.cs
- WebPartVerb.cs
- QilPatternFactory.cs
- PropertyCondition.cs
- AssociatedControlConverter.cs
- ResourceReferenceKeyNotFoundException.cs
- DbCommandDefinition.cs
- ReadOnlyDictionary.cs
- BindingMemberInfo.cs
- HotSpot.cs
- QuotedPrintableStream.cs
- CqlLexerHelpers.cs
- TraceEventCache.cs
- PerfCounters.cs
- SecurityRuntime.cs
- HwndStylusInputProvider.cs
- ItemCollectionEditor.cs
- DrawingContextWalker.cs
- Parameter.cs
- SqlUnionizer.cs
- PropertyGridEditorPart.cs
- SqlDataSource.cs
- XmlTextEncoder.cs
- MonthChangedEventArgs.cs
- XmlSequenceWriter.cs
- HttpListener.cs
- BrushMappingModeValidation.cs
- BindingWorker.cs
- ThemeableAttribute.cs
- TextClipboardData.cs
- CqlLexerHelpers.cs
- Screen.cs
- ArgumentDesigner.xaml.cs
- Internal.cs
- Normalization.cs
- IntranetCredentialPolicy.cs
- SmtpAuthenticationManager.cs
- EventHandlerList.cs
- HttpProtocolReflector.cs
- MemoryRecordBuffer.cs
- SerialPort.cs
- TypeDescriptor.cs
- SolidColorBrush.cs
- FixedSOMPage.cs
- TransformConverter.cs
- MetadataProperty.cs
- XmlBaseReader.cs
- StringArrayConverter.cs
- WindowsRegion.cs
- InitializerFacet.cs
- RuleConditionDialog.Designer.cs
- TemplateBuilder.cs
- HealthMonitoringSection.cs
- TableDetailsRow.cs
- METAHEADER.cs
- FileDialogCustomPlacesCollection.cs
- XmlEntity.cs
- PartDesigner.cs
- VBIdentifierDesigner.xaml.cs
- Properties.cs
- SoapParser.cs
- MessageSmuggler.cs
- SqlTransaction.cs
- ToolStripItemCollection.cs
- latinshape.cs
- GeometryHitTestResult.cs
- ShapingWorkspace.cs
- _OverlappedAsyncResult.cs
- GZipUtils.cs
- XPathParser.cs
- DBCommandBuilder.cs
- SmiTypedGetterSetter.cs
- XPathSelectionIterator.cs
- XmlArrayItemAttributes.cs
- SecurityContext.cs
- WorkflowRuntimeSection.cs
- PointCollectionConverter.cs
- ConnectionPointCookie.cs
- UrlPath.cs
- TimeSpanSecondsConverter.cs
- DataServiceBuildProvider.cs
- XPathMultyIterator.cs
- RightNameExpirationInfoPair.cs
- MimeMapping.cs
- CodeIdentifiers.cs
- WindowsNonControl.cs
- CacheChildrenQuery.cs
- FontSource.cs
- AttachedPropertyBrowsableForTypeAttribute.cs
- MaskedTextBox.cs