Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / MS / Internal / FontCache / CanonicalFontFamilyReference.cs / 1 / CanonicalFontFamilyReference.cs
//------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: The CanonicalFontFamilyReference class is the internal representation of a font // family reference. "Canonical" in this case means it has a normalized form and // the location part (if any) has been resolved to an absolute URI. // // See spec at http://team/sites/Avalon/Specs/Font%20Family%20References.doc // // History: // 1-30-2006 : niklasb - Created // //----------------------------------------------------------------------- using System; using MS.Internal; namespace MS.Internal.FontCache { internal sealed class CanonicalFontFamilyReference { ////// Create a CanonicalFontFamilyReference given a base URI and string. /// /// Base URI used to resolve the location part, if it is relative. /// Font family reference string, in the normalized form returned /// by Util.GetNormalizedFontFamilyReference. ///Returns a new CanonicalFontFamilyReference or CanonicalFontFamilyReference.Unresolved. public static CanonicalFontFamilyReference Create(Uri baseUri, string normalizedString) { string locationString; string escapedFamilyName; if (SplitFontFamilyReference(normalizedString, out locationString, out escapedFamilyName)) { Uri absoluteUri = null; string fileName = null; bool resolved = false; if (locationString == null || Util.IsReferenceToWindowsFonts(locationString)) { // No location (e.g., "#Arial") or file-name-only location (e.g., "arial.ttf#Arial") fileName = locationString; resolved = true; } else { if (Uri.TryCreate(locationString, UriKind.Absolute, out absoluteUri)) { // Location is an absolute URI. Make sure it's a supported scheme. resolved = Util.IsSupportedSchemeForAbsoluteFontFamilyUri(absoluteUri); } else if (baseUri != null && Util.IsEnumerableFontUriScheme(baseUri)) { // Location is relative to the base URI. resolved = Uri.TryCreate(baseUri, locationString, out absoluteUri); } } if (resolved) { return new CanonicalFontFamilyReference(absoluteUri, fileName, Uri.UnescapeDataString(escapedFamilyName)); } } return _unresolved; } ////// Represents a font family reference that could not be resolved, e.g., because of an /// invalid location or unsupported scheme. /// public static CanonicalFontFamilyReference Unresolved { get { return _unresolved; } } ////// Font family name. This string is not URI encoded (escaped). /// public string FamilyName { get { return _familyName; } } ////// If a font family reference's location part comprises a file name only (e.g., "arial.ttf#Arial") /// this property is the URI-encoded file name. In this case, the implied location of the file is /// the default Windows Fonts folder and the LocationUri property is null. In all other cases, /// this property is null. /// public string EscapedFileName { get { return _escapedFileName; } } ////// Gets the font location if a specific location is given; otherwise returns null indicating /// the default Windows Fonts folder. /// public Uri LocationUri { get { return _absoluteLocationUri; } } public bool Equals(CanonicalFontFamilyReference other) { return other != null && other._absoluteLocationUri == _absoluteLocationUri && other._escapedFileName == _escapedFileName && other._familyName == _familyName; } public override bool Equals(object obj) { return Equals(obj as CanonicalFontFamilyReference); } public override int GetHashCode() { if (_absoluteLocationUri == null && _escapedFileName == null) { // Typical case where no location is specified return _familyName.GetHashCode(); } else { // Either we have a URI or a file name, never both int hash = (_absoluteLocationUri != null) ? _absoluteLocationUri.GetHashCode() : _escapedFileName.GetHashCode(); // Combine the location hash with the family name hash hash = HashFn.HashMultiply(hash) + _familyName.GetHashCode(); return HashFn.HashScramble(hash); } } private CanonicalFontFamilyReference(Uri absoluteLocationUri, string escapedFileName, string familyName) { _absoluteLocationUri = absoluteLocationUri; _escapedFileName = escapedFileName; _familyName = familyName; } private static bool SplitFontFamilyReference(string normalizedString, out string locationString, out string escapedFamilyName) { int familyNameIndex; if (normalizedString[0] == '#') { locationString = null; familyNameIndex = 1; } else { int i = normalizedString.IndexOf('#'); locationString = normalizedString.Substring(0, i); familyNameIndex = i + 1; } if (familyNameIndex < normalizedString.Length) { escapedFamilyName = normalizedString.Substring(familyNameIndex); return true; } else { escapedFamilyName = null; return false; } } private Uri _absoluteLocationUri; private string _escapedFileName; private string _familyName; private static readonly CanonicalFontFamilyReference _unresolved = new CanonicalFontFamilyReference(null, null, string.Empty); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------ // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: The CanonicalFontFamilyReference class is the internal representation of a font // family reference. "Canonical" in this case means it has a normalized form and // the location part (if any) has been resolved to an absolute URI. // // See spec at http://team/sites/Avalon/Specs/Font%20Family%20References.doc // // History: // 1-30-2006 : niklasb - Created // //----------------------------------------------------------------------- using System; using MS.Internal; namespace MS.Internal.FontCache { internal sealed class CanonicalFontFamilyReference { ////// Create a CanonicalFontFamilyReference given a base URI and string. /// /// Base URI used to resolve the location part, if it is relative. /// Font family reference string, in the normalized form returned /// by Util.GetNormalizedFontFamilyReference. ///Returns a new CanonicalFontFamilyReference or CanonicalFontFamilyReference.Unresolved. public static CanonicalFontFamilyReference Create(Uri baseUri, string normalizedString) { string locationString; string escapedFamilyName; if (SplitFontFamilyReference(normalizedString, out locationString, out escapedFamilyName)) { Uri absoluteUri = null; string fileName = null; bool resolved = false; if (locationString == null || Util.IsReferenceToWindowsFonts(locationString)) { // No location (e.g., "#Arial") or file-name-only location (e.g., "arial.ttf#Arial") fileName = locationString; resolved = true; } else { if (Uri.TryCreate(locationString, UriKind.Absolute, out absoluteUri)) { // Location is an absolute URI. Make sure it's a supported scheme. resolved = Util.IsSupportedSchemeForAbsoluteFontFamilyUri(absoluteUri); } else if (baseUri != null && Util.IsEnumerableFontUriScheme(baseUri)) { // Location is relative to the base URI. resolved = Uri.TryCreate(baseUri, locationString, out absoluteUri); } } if (resolved) { return new CanonicalFontFamilyReference(absoluteUri, fileName, Uri.UnescapeDataString(escapedFamilyName)); } } return _unresolved; } ////// Represents a font family reference that could not be resolved, e.g., because of an /// invalid location or unsupported scheme. /// public static CanonicalFontFamilyReference Unresolved { get { return _unresolved; } } ////// Font family name. This string is not URI encoded (escaped). /// public string FamilyName { get { return _familyName; } } ////// If a font family reference's location part comprises a file name only (e.g., "arial.ttf#Arial") /// this property is the URI-encoded file name. In this case, the implied location of the file is /// the default Windows Fonts folder and the LocationUri property is null. In all other cases, /// this property is null. /// public string EscapedFileName { get { return _escapedFileName; } } ////// Gets the font location if a specific location is given; otherwise returns null indicating /// the default Windows Fonts folder. /// public Uri LocationUri { get { return _absoluteLocationUri; } } public bool Equals(CanonicalFontFamilyReference other) { return other != null && other._absoluteLocationUri == _absoluteLocationUri && other._escapedFileName == _escapedFileName && other._familyName == _familyName; } public override bool Equals(object obj) { return Equals(obj as CanonicalFontFamilyReference); } public override int GetHashCode() { if (_absoluteLocationUri == null && _escapedFileName == null) { // Typical case where no location is specified return _familyName.GetHashCode(); } else { // Either we have a URI or a file name, never both int hash = (_absoluteLocationUri != null) ? _absoluteLocationUri.GetHashCode() : _escapedFileName.GetHashCode(); // Combine the location hash with the family name hash hash = HashFn.HashMultiply(hash) + _familyName.GetHashCode(); return HashFn.HashScramble(hash); } } private CanonicalFontFamilyReference(Uri absoluteLocationUri, string escapedFileName, string familyName) { _absoluteLocationUri = absoluteLocationUri; _escapedFileName = escapedFileName; _familyName = familyName; } private static bool SplitFontFamilyReference(string normalizedString, out string locationString, out string escapedFamilyName) { int familyNameIndex; if (normalizedString[0] == '#') { locationString = null; familyNameIndex = 1; } else { int i = normalizedString.IndexOf('#'); locationString = normalizedString.Substring(0, i); familyNameIndex = i + 1; } if (familyNameIndex < normalizedString.Length) { escapedFamilyName = normalizedString.Substring(familyNameIndex); return true; } else { escapedFamilyName = null; return false; } } private Uri _absoluteLocationUri; private string _escapedFileName; private string _familyName; private static readonly CanonicalFontFamilyReference _unresolved = new CanonicalFontFamilyReference(null, null, string.Empty); } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TextAnchor.cs
- StreamReader.cs
- WebPartTracker.cs
- XpsPartBase.cs
- InvalidPipelineStoreException.cs
- SafeSystemMetrics.cs
- HostExecutionContextManager.cs
- FixedPage.cs
- NativeMethods.cs
- HeaderCollection.cs
- AttributeEmitter.cs
- FunctionQuery.cs
- SqlRetyper.cs
- VarRefManager.cs
- MatrixUtil.cs
- XamlSerializerUtil.cs
- ExecutionContext.cs
- CodeTypeParameterCollection.cs
- TreeBuilderBamlTranslator.cs
- ToolBarButton.cs
- AssociationType.cs
- XPathPatternParser.cs
- MimeMapping.cs
- KeyValuePairs.cs
- TemplateNameScope.cs
- ProgressBar.cs
- ObfuscateAssemblyAttribute.cs
- PersonalizationDictionary.cs
- HwndProxyElementProvider.cs
- UserInitiatedNavigationPermission.cs
- DocumentPageView.cs
- LinkDescriptor.cs
- DataSetMappper.cs
- XmlMemberMapping.cs
- HwndStylusInputProvider.cs
- DrawingBrush.cs
- FrameworkElementFactoryMarkupObject.cs
- RoutedEvent.cs
- Canvas.cs
- ComponentCollection.cs
- ArgumentNullException.cs
- Panel.cs
- MemberInfoSerializationHolder.cs
- BehaviorEditorPart.cs
- Walker.cs
- FileRegion.cs
- RectangleGeometry.cs
- PropertyPathWorker.cs
- BindingsCollection.cs
- UnknownBitmapDecoder.cs
- SpecialNameAttribute.cs
- XmlDocumentFragment.cs
- XmlName.cs
- CodeAttributeArgumentCollection.cs
- StyleConverter.cs
- LookupNode.cs
- SerializableAttribute.cs
- BufferedStream.cs
- CompositeDispatchFormatter.cs
- LocalizationParserHooks.cs
- QuerySettings.cs
- XslCompiledTransform.cs
- ReflectionTypeLoadException.cs
- BitFlagsGenerator.cs
- DrawingAttributes.cs
- PolicyLevel.cs
- PresentationSource.cs
- IDReferencePropertyAttribute.cs
- DoubleAnimationBase.cs
- DelegateCompletionCallbackWrapper.cs
- DataGridViewRowHeightInfoNeededEventArgs.cs
- tooltip.cs
- HelloOperationAsyncResult.cs
- RichTextBoxAutomationPeer.cs
- PersonalizationAdministration.cs
- ModelPropertyCollectionImpl.cs
- Condition.cs
- PersonalizationStateInfoCollection.cs
- CorePropertiesFilter.cs
- GroupBox.cs
- ButtonBase.cs
- TableRow.cs
- QuaternionConverter.cs
- DynamicUpdateCommand.cs
- LoginView.cs
- ObjectListField.cs
- TransferMode.cs
- ScriptBehaviorDescriptor.cs
- MissingFieldException.cs
- InstanceDescriptor.cs
- PointAnimationBase.cs
- VectorConverter.cs
- Vector3DCollection.cs
- EmissiveMaterial.cs
- basevalidator.cs
- ContextBase.cs
- WorkflowMarkupElementEventArgs.cs
- ManifestResourceInfo.cs
- WizardStepBase.cs
- Animatable.cs