Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / 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
- BuildProvider.cs
- AssociationTypeEmitter.cs
- AssemblyResourceLoader.cs
- DynamicEndpointElement.cs
- TransformerInfo.cs
- COM2Enum.cs
- ApplicationManager.cs
- UserNamePasswordValidator.cs
- CodeIdentifier.cs
- Attributes.cs
- DeviceContexts.cs
- PathFigure.cs
- Attributes.cs
- DateTimePicker.cs
- LeafCellTreeNode.cs
- SafeProcessHandle.cs
- SessionPageStatePersister.cs
- EmptyTextWriter.cs
- CompiledAction.cs
- StreamAsIStream.cs
- IgnoreFlushAndCloseStream.cs
- DropDownButton.cs
- SiteMapNodeItem.cs
- GraphicsState.cs
- PartialClassGenerationTaskInternal.cs
- StylusPoint.cs
- ControlCachePolicy.cs
- ScriptComponentDescriptor.cs
- PropertiesTab.cs
- Rect.cs
- ResizingMessageFilter.cs
- WebPageTraceListener.cs
- ScaleTransform3D.cs
- DataFormat.cs
- DataGridViewCellValueEventArgs.cs
- BaseProcessor.cs
- ScriptResourceAttribute.cs
- Claim.cs
- InputBindingCollection.cs
- NeutralResourcesLanguageAttribute.cs
- SmiRecordBuffer.cs
- TreeView.cs
- ResourceSet.cs
- CodePropertyReferenceExpression.cs
- SqlBooleanizer.cs
- RemoteCryptoRsaServiceProvider.cs
- _NativeSSPI.cs
- PingReply.cs
- DataGridViewAccessibleObject.cs
- PointAnimationUsingKeyFrames.cs
- ConstructorNeedsTagAttribute.cs
- EntityDataSourceConfigureObjectContext.cs
- MethodAccessException.cs
- XmlAttributeCollection.cs
- MatrixConverter.cs
- ExclusiveTcpTransportManager.cs
- ResponseBodyWriter.cs
- XamlSerializer.cs
- DataControlField.cs
- QueryExtender.cs
- EventHandlersStore.cs
- PackageDigitalSignatureManager.cs
- Panel.cs
- OrderedDictionary.cs
- PartitionerStatic.cs
- ButtonFieldBase.cs
- ItemAutomationPeer.cs
- CreateUserWizardDesigner.cs
- SecureUICommand.cs
- LayoutManager.cs
- MissingManifestResourceException.cs
- _HeaderInfoTable.cs
- DetailsViewDeletedEventArgs.cs
- TextElementCollectionHelper.cs
- SHA512Managed.cs
- ExceptionRoutedEventArgs.cs
- SafeNativeMethods.cs
- AssemblyLoader.cs
- AuthorizationRuleCollection.cs
- ByteStreamMessageEncoder.cs
- ImageSource.cs
- GridViewCommandEventArgs.cs
- FixedSOMGroup.cs
- EncoderParameters.cs
- FramingEncoders.cs
- CodeArgumentReferenceExpression.cs
- CodeGroup.cs
- ValidatorAttribute.cs
- RewritingSimplifier.cs
- OdbcInfoMessageEvent.cs
- ADConnectionHelper.cs
- ImageConverter.cs
- SvcFileManager.cs
- ITreeGenerator.cs
- OdbcConnectionStringbuilder.cs
- HttpModuleActionCollection.cs
- XmlMapping.cs
- BeginGetFileNameFromUserRequest.cs
- RevocationPoint.cs
- CompilerInfo.cs