Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / 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
- _ListenerRequestStream.cs
- MimeXmlReflector.cs
- EntityTypeEmitter.cs
- NativeActivityMetadata.cs
- StatusStrip.cs
- X509Extension.cs
- AddInIpcChannel.cs
- ToolStripMenuItem.cs
- SoapElementAttribute.cs
- UrlPropertyAttribute.cs
- HwndTarget.cs
- FamilyCollection.cs
- KeySpline.cs
- DataListItemCollection.cs
- EntityCommandExecutionException.cs
- RootProfilePropertySettingsCollection.cs
- LinkGrep.cs
- CellRelation.cs
- XmlDataSource.cs
- CollectionsUtil.cs
- Claim.cs
- SQLInt16Storage.cs
- SafeArrayTypeMismatchException.cs
- AppDomainGrammarProxy.cs
- Assembly.cs
- ComboBoxAutomationPeer.cs
- LateBoundBitmapDecoder.cs
- InstanceDescriptor.cs
- XmlSignatureProperties.cs
- TimeSpanValidator.cs
- HtmlImage.cs
- SoapExtensionTypeElementCollection.cs
- SQLGuidStorage.cs
- RMPublishingDialog.cs
- Soap.cs
- ProfileProvider.cs
- AccessControlEntry.cs
- ProfileService.cs
- XmlSchemaObjectTable.cs
- MetadataUtil.cs
- SqlAliasesReferenced.cs
- NetPeerTcpBinding.cs
- HttpInputStream.cs
- DeploymentSection.cs
- WebPartConnectionsConfigureVerb.cs
- FrameworkContentElement.cs
- PromptEventArgs.cs
- PublisherIdentityPermission.cs
- PartialList.cs
- FastEncoder.cs
- ContainerAction.cs
- DirectoryGroupQuery.cs
- BooleanProjectedSlot.cs
- NameSpaceExtractor.cs
- AccessedThroughPropertyAttribute.cs
- SizeKeyFrameCollection.cs
- MessageBox.cs
- InputBinding.cs
- ScriptReferenceBase.cs
- PathTooLongException.cs
- ContainerUIElement3D.cs
- Scene3D.cs
- Vector3DValueSerializer.cs
- Color.cs
- SqlGenericUtil.cs
- TypeConvertions.cs
- InvalidOperationException.cs
- SecurityManager.cs
- TranslateTransform.cs
- ISAPIWorkerRequest.cs
- HttpDebugHandler.cs
- TdsParserStaticMethods.cs
- CodeTypeReferenceCollection.cs
- FlowDocumentReaderAutomationPeer.cs
- CustomWebEventKey.cs
- CommandConverter.cs
- ConfigXmlElement.cs
- SynchronizationLockException.cs
- SpeakProgressEventArgs.cs
- TextAutomationPeer.cs
- NativeMethods.cs
- Point3D.cs
- Timeline.cs
- TrackingDataItemValue.cs
- DrawTreeNodeEventArgs.cs
- NamespaceEmitter.cs
- CompilationLock.cs
- ComponentDispatcherThread.cs
- FileDetails.cs
- ProcessHostConfigUtils.cs
- MetadataHelper.cs
- StorageBasedPackageProperties.cs
- UnionCodeGroup.cs
- WebPartEditorCancelVerb.cs
- MetadataArtifactLoaderXmlReaderWrapper.cs
- XmlWriter.cs
- SpecularMaterial.cs
- SystemNetworkInterface.cs
- ConditionalAttribute.cs
- SqlBuffer.cs