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
- dataprotectionpermission.cs
- ZipIOCentralDirectoryFileHeader.cs
- xsdvalidator.cs
- CultureTable.cs
- ImagingCache.cs
- IDQuery.cs
- wgx_sdk_version.cs
- ExpressionVisitor.cs
- QuaternionConverter.cs
- KeyedCollection.cs
- JsonSerializer.cs
- ExpressionLexer.cs
- CustomExpressionEventArgs.cs
- ShaderRenderModeValidation.cs
- UnmanagedMemoryStreamWrapper.cs
- FamilyMap.cs
- AlphaSortedEnumConverter.cs
- RandomNumberGenerator.cs
- RowType.cs
- Inline.cs
- BroadcastEventHelper.cs
- TargetControlTypeAttribute.cs
- WorkflowInstanceProvider.cs
- SchemaElementDecl.cs
- TargetParameterCountException.cs
- DataMisalignedException.cs
- IdentitySection.cs
- ThaiBuddhistCalendar.cs
- XmlSerializableReader.cs
- MatrixAnimationUsingPath.cs
- HMACSHA512.cs
- FacetChecker.cs
- SingleAnimation.cs
- TypefaceMetricsCache.cs
- SqlInternalConnection.cs
- ListViewItemSelectionChangedEvent.cs
- Events.cs
- PrincipalPermissionMode.cs
- DataObjectFieldAttribute.cs
- Vector.cs
- FontFamilyValueSerializer.cs
- ConfigurationElementCollection.cs
- FederatedMessageSecurityOverHttpElement.cs
- XmlSchemaSimpleContentExtension.cs
- ScrollItemPatternIdentifiers.cs
- LayoutEditorPart.cs
- COM2ColorConverter.cs
- SqlDataReaderSmi.cs
- DataViewSettingCollection.cs
- DataPagerFieldCommandEventArgs.cs
- ReadWriteObjectLock.cs
- ActionFrame.cs
- CalendarDay.cs
- NextPreviousPagerField.cs
- DataGridViewAutoSizeModeEventArgs.cs
- localization.cs
- DataControlReferenceCollection.cs
- CompareValidator.cs
- WebPartConnectionsEventArgs.cs
- PackageFilter.cs
- OpCopier.cs
- ClientTargetCollection.cs
- MethodCallTranslator.cs
- EdmComplexPropertyAttribute.cs
- DesignConnectionCollection.cs
- ObjectDataSourceStatusEventArgs.cs
- VisualState.cs
- HtmlSelect.cs
- TextClipboardData.cs
- PeerApplication.cs
- IteratorDescriptor.cs
- PrintEvent.cs
- ParseChildrenAsPropertiesAttribute.cs
- HttpCapabilitiesEvaluator.cs
- ComPlusServiceHost.cs
- WindowsBrush.cs
- DataGridViewRowErrorTextNeededEventArgs.cs
- XmlDictionaryWriter.cs
- Comparer.cs
- InvalidateEvent.cs
- WsdlBuildProvider.cs
- RangeBaseAutomationPeer.cs
- ApplicationInfo.cs
- PageStatePersister.cs
- EventListener.cs
- TextSegment.cs
- VariableAction.cs
- configsystem.cs
- SafeNativeMethodsOther.cs
- BehaviorDragDropEventArgs.cs
- SQLBoolean.cs
- XmlDownloadManager.cs
- LockCookie.cs
- TransactionManager.cs
- HtmlControl.cs
- DataSpaceManager.cs
- GZipStream.cs
- XmlSequenceWriter.cs
- Polygon.cs
- AsyncOperationManager.cs