Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / MS / Internal / Text / LineMetrics.cs / 1305600 / 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
- FunctionParameter.cs
- ObjectStorage.cs
- LifetimeServices.cs
- SByteStorage.cs
- OptimalBreakSession.cs
- JsonEncodingStreamWrapper.cs
- GridToolTip.cs
- NameTable.cs
- DynamicEndpointElement.cs
- StatusBarPanelClickEvent.cs
- NumericUpDownAcceleration.cs
- MailBnfHelper.cs
- CodeDomSerializerBase.cs
- DependencyPropertyKind.cs
- Hash.cs
- XamlSerializationHelper.cs
- Baml6ConstructorInfo.cs
- ItemsPanelTemplate.cs
- Variant.cs
- CommonDialog.cs
- EventLogPermissionAttribute.cs
- ContentPlaceHolder.cs
- DispatchWrapper.cs
- DiscoveryClient.cs
- TemplateBindingExtension.cs
- IFlowDocumentViewer.cs
- AssertSection.cs
- TypedRowGenerator.cs
- MsmqProcessProtocolHandler.cs
- ArrangedElement.cs
- TimeSpanSecondsConverter.cs
- UrlMappingCollection.cs
- SiteMapNode.cs
- ReturnValue.cs
- TypefaceMap.cs
- SourceSwitch.cs
- DataGridViewToolTip.cs
- BamlWriter.cs
- XmlText.cs
- UTF32Encoding.cs
- NavigateEvent.cs
- ContextMarshalException.cs
- WindowsImpersonationContext.cs
- _ListenerResponseStream.cs
- WCFModelStrings.Designer.cs
- CodeCompileUnit.cs
- DefaultTraceListener.cs
- AttachedPropertyBrowsableForChildrenAttribute.cs
- NonVisualControlAttribute.cs
- WebDescriptionAttribute.cs
- FileSystemInfo.cs
- HtmlInputPassword.cs
- PixelFormat.cs
- WinFormsSpinner.cs
- Decoder.cs
- ScriptResourceHandler.cs
- InheritablePropertyChangeInfo.cs
- TreeViewItem.cs
- URLIdentityPermission.cs
- MetadataSource.cs
- COM2IDispatchConverter.cs
- WindowsGraphics.cs
- TablePattern.cs
- TokenBasedSet.cs
- UnrecognizedPolicyAssertionElement.cs
- QuadraticBezierSegment.cs
- nulltextnavigator.cs
- IntPtr.cs
- MatrixAnimationUsingKeyFrames.cs
- XsdValidatingReader.cs
- CommandLibraryHelper.cs
- ButtonFieldBase.cs
- FontEmbeddingManager.cs
- WebHttpBindingElement.cs
- TraceInternal.cs
- SqlDataSourceQueryEditorForm.cs
- ExpressionServices.cs
- InputElement.cs
- RegisteredDisposeScript.cs
- BuildManagerHost.cs
- FullTextState.cs
- TextBox.cs
- DocumentViewerBase.cs
- ImageListUtils.cs
- StructuredTypeInfo.cs
- FixedHyperLink.cs
- TreeNodeClickEventArgs.cs
- RenderingEventArgs.cs
- CompilationSection.cs
- Point.cs
- SecurityDescriptor.cs
- SettingsSection.cs
- HwndAppCommandInputProvider.cs
- ToolBarTray.cs
- Semaphore.cs
- BinaryMessageEncoder.cs
- InheritablePropertyChangeInfo.cs
- UrlPath.cs
- KeyInfo.cs
- Int32KeyFrameCollection.cs