Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / System / Windows / FontWeightConverter.cs / 1 / FontWeightConverter.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: FontWeight type converter. // // History: // 01/25/2005 mleonov - Created. // //--------------------------------------------------------------------------- using System; using System.IO; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using System.Windows.Media; using System.Text; using System.Collections; using System.Globalization; using System.Runtime.InteropServices; using System.Security; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows { ////// FontWeightConverter class parses a font weight string. /// public sealed class FontWeightConverter : TypeConverter { ////// CanConvertFrom /// public override bool CanConvertFrom(ITypeDescriptorContext td, Type t) { if (t == typeof(string)) { return true; } else { return false; } } ////// TypeConverter method override. /// /// ITypeDescriptorContext /// Type to convert to ///true if conversion is possible public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(InstanceDescriptor) || destinationType == typeof(string)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFrom - attempt to convert to a FontWeight from the given object /// ////// A NotSupportedException is thrown if the example object is null or is not a valid type /// which can be converted to a FontWeight. /// public override object ConvertFrom(ITypeDescriptorContext td, CultureInfo ci, object value) { if (null == value) { throw GetConvertFromException(value); } String s = value as string; if (null == s) { throw new ArgumentException(SR.Get(SRID.General_BadType, "ConvertFrom"), "value"); } FontWeight fontWeight = new FontWeight(); if (!FontWeights.FontWeightStringToKnownWeight(s, ci, ref fontWeight)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontWeight; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontWeight, /// or if the destinationType isn't one of the valid destination types. /// /// ITypeDescriptorContext /// current culture (see CLR specs) /// value to convert from /// Type to convert to ///converted value ////// Critical: calls InstanceDescriptor ctor which LinkDemands /// PublicOK: can only make an InstanceDescriptor for FontWeight, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontWeight) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontWeight).GetMethod("FromOpenTypeWeight", new Type[]{typeof(int)}); FontWeight c = (FontWeight)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeWeight()}); } else if (destinationType == typeof(string)) { FontWeight c = (FontWeight)value; return ((IFormattable)c).ToString(null, culture); } } // Pass unhandled cases to base class (which will throw exceptions for null value or destinationType.) return base.ConvertTo(context, culture, value, destinationType); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: FontWeight type converter. // // History: // 01/25/2005 mleonov - Created. // //--------------------------------------------------------------------------- using System; using System.IO; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using System.Windows.Media; using System.Text; using System.Collections; using System.Globalization; using System.Runtime.InteropServices; using System.Security; using SR=MS.Internal.PresentationCore.SR; using SRID=MS.Internal.PresentationCore.SRID; namespace System.Windows { ////// FontWeightConverter class parses a font weight string. /// public sealed class FontWeightConverter : TypeConverter { ////// CanConvertFrom /// public override bool CanConvertFrom(ITypeDescriptorContext td, Type t) { if (t == typeof(string)) { return true; } else { return false; } } ////// TypeConverter method override. /// /// ITypeDescriptorContext /// Type to convert to ///true if conversion is possible public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) { if (destinationType == typeof(InstanceDescriptor) || destinationType == typeof(string)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFrom - attempt to convert to a FontWeight from the given object /// ////// A NotSupportedException is thrown if the example object is null or is not a valid type /// which can be converted to a FontWeight. /// public override object ConvertFrom(ITypeDescriptorContext td, CultureInfo ci, object value) { if (null == value) { throw GetConvertFromException(value); } String s = value as string; if (null == s) { throw new ArgumentException(SR.Get(SRID.General_BadType, "ConvertFrom"), "value"); } FontWeight fontWeight = new FontWeight(); if (!FontWeights.FontWeightStringToKnownWeight(s, ci, ref fontWeight)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontWeight; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontWeight, /// or if the destinationType isn't one of the valid destination types. /// /// ITypeDescriptorContext /// current culture (see CLR specs) /// value to convert from /// Type to convert to ///converted value ////// Critical: calls InstanceDescriptor ctor which LinkDemands /// PublicOK: can only make an InstanceDescriptor for FontWeight, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontWeight) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontWeight).GetMethod("FromOpenTypeWeight", new Type[]{typeof(int)}); FontWeight c = (FontWeight)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeWeight()}); } else if (destinationType == typeof(string)) { FontWeight c = (FontWeight)value; return ((IFormattable)c).ToString(null, culture); } } // Pass unhandled cases to base class (which will throw exceptions for null value or destinationType.) return base.ConvertTo(context, culture, value, destinationType); } } } // 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
- OptimalTextSource.cs
- _AuthenticationState.cs
- OleDbPropertySetGuid.cs
- PersonalizablePropertyEntry.cs
- ApplicationSettingsBase.cs
- ITextView.cs
- DataBindEngine.cs
- Brush.cs
- EpmContentSerializerBase.cs
- RecognizerStateChangedEventArgs.cs
- AttributeXamlType.cs
- Size3DConverter.cs
- CurrentChangingEventManager.cs
- ParameterExpression.cs
- ThreadAttributes.cs
- ImageAnimator.cs
- IImplicitResourceProvider.cs
- BufferModesCollection.cs
- InvocationExpression.cs
- Point3DValueSerializer.cs
- RichTextBoxAutomationPeer.cs
- SmiMetaData.cs
- DbReferenceCollection.cs
- DataGridViewRow.cs
- InnerItemCollectionView.cs
- AssemblyHash.cs
- ParserStreamGeometryContext.cs
- StringReader.cs
- OwnerDrawPropertyBag.cs
- Int64KeyFrameCollection.cs
- HttpRuntimeSection.cs
- SqlDependencyUtils.cs
- NetworkInformationException.cs
- RuntimeArgumentHandle.cs
- ConsoleKeyInfo.cs
- FullTrustAssembly.cs
- MessageSecurityVersionConverter.cs
- cache.cs
- DataAdapter.cs
- ControlSerializer.cs
- PeerNameRecord.cs
- PropertyGridDesigner.cs
- SmtpTransport.cs
- Glyph.cs
- TrackingQuery.cs
- BulletedListEventArgs.cs
- FlowLayoutSettings.cs
- FigureParaClient.cs
- AutomationEventArgs.cs
- ECDiffieHellmanPublicKey.cs
- EditingMode.cs
- Decorator.cs
- WeakReference.cs
- SubpageParagraph.cs
- EncryptedPackageFilter.cs
- SqlDataRecord.cs
- LabelLiteral.cs
- EmptyEnumerator.cs
- Route.cs
- XmlSchemaInfo.cs
- ThreadAttributes.cs
- _SecureChannel.cs
- ListBoxItem.cs
- ProfileSettings.cs
- QilBinary.cs
- StandardCommands.cs
- ErrorWrapper.cs
- HandlerFactoryCache.cs
- ErrorWebPart.cs
- SizeConverter.cs
- FrugalList.cs
- ControlPaint.cs
- UnsafeCollabNativeMethods.cs
- RankException.cs
- XmlDesigner.cs
- JoinGraph.cs
- SmtpFailedRecipientException.cs
- ClockGroup.cs
- PhysicalAddress.cs
- InstanceDataCollection.cs
- UniqueIdentifierService.cs
- HGlobalSafeHandle.cs
- ListManagerBindingsCollection.cs
- ConfigXmlAttribute.cs
- XsdDateTime.cs
- RecordManager.cs
- WebFaultClientMessageInspector.cs
- metadatamappinghashervisitor.cs
- QueryResultOp.cs
- DataGridViewCellCancelEventArgs.cs
- XmlResolver.cs
- IdentityValidationException.cs
- DbDataReader.cs
- XmlCharCheckingReader.cs
- ProxyManager.cs
- GenericIdentity.cs
- EventLogEntry.cs
- RemotingConfiguration.cs
- DirectionalLight.cs
- UnaryExpression.cs