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 / 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
- RadioButtonList.cs
- BindingsCollection.cs
- TextBlock.cs
- RootBuilder.cs
- WindowsGraphicsCacheManager.cs
- IisNotInstalledException.cs
- PasswordBox.cs
- Qualifier.cs
- HierarchicalDataSourceControl.cs
- ProfileSettings.cs
- RubberbandSelector.cs
- ChangeTracker.cs
- TextSegment.cs
- ToolStrip.cs
- InputDevice.cs
- StagingAreaInputItem.cs
- SqlUserDefinedAggregateAttribute.cs
- ClientBuildManager.cs
- ImageListStreamer.cs
- StringPropertyBuilder.cs
- TypeHelpers.cs
- ICspAsymmetricAlgorithm.cs
- ListBoxItemWrapperAutomationPeer.cs
- VerificationException.cs
- RemotingConfigParser.cs
- ObjectCacheHost.cs
- ToolStripControlHost.cs
- DataSourceViewSchemaConverter.cs
- Condition.cs
- SerializationStore.cs
- SmtpAuthenticationManager.cs
- FlowDocumentPaginator.cs
- Predicate.cs
- ImageMapEventArgs.cs
- ContainerCodeDomSerializer.cs
- PointHitTestParameters.cs
- ContainerParagraph.cs
- GridViewAutoFormat.cs
- Overlapped.cs
- ProfileParameter.cs
- BuildProvidersCompiler.cs
- SqlMethods.cs
- OrderedDictionary.cs
- GraphicsPathIterator.cs
- WebInvokeAttribute.cs
- PopupEventArgs.cs
- UIAgentInitializationException.cs
- ImageAttributes.cs
- HttpConfigurationContext.cs
- HtmlContainerControl.cs
- FileDialog.cs
- SQLMembershipProvider.cs
- PointHitTestResult.cs
- GroupDescription.cs
- QueryOperationResponseOfT.cs
- ImageKeyConverter.cs
- CacheVirtualItemsEvent.cs
- AccessibleObject.cs
- MarkupProperty.cs
- GacUtil.cs
- SizeAnimationClockResource.cs
- DataTableTypeConverter.cs
- DbBuffer.cs
- AppendHelper.cs
- SrgsRule.cs
- HwndHost.cs
- Timer.cs
- OracleRowUpdatingEventArgs.cs
- HeaderedItemsControl.cs
- ObjectStateFormatter.cs
- RootProfilePropertySettingsCollection.cs
- DrawingDrawingContext.cs
- ResourceExpressionEditor.cs
- NamespaceExpr.cs
- VerifyHashRequest.cs
- DescendantOverDescendantQuery.cs
- DependencyPropertyKey.cs
- ReadOnlyNameValueCollection.cs
- LogFlushAsyncResult.cs
- EntryWrittenEventArgs.cs
- SvcMapFileSerializer.cs
- FrameworkObject.cs
- PrimaryKeyTypeConverter.cs
- Style.cs
- RestClientProxyHandler.cs
- ImageEditor.cs
- SharedPersonalizationStateInfo.cs
- CssClassPropertyAttribute.cs
- Contracts.cs
- SqlMultiplexer.cs
- CalendarDataBindingHandler.cs
- SessionStateSection.cs
- UnsafeCollabNativeMethods.cs
- PathTooLongException.cs
- _IPv6Address.cs
- cookie.cs
- DescriptionAttribute.cs
- Rect.cs
- EncryptedData.cs
- PropertyCollection.cs