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 / FontStretchConverter.cs / 1 / FontStretchConverter.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: FontStretch 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 { ////// FontStretchConverter class parses a font stretch string. /// public sealed class FontStretchConverter : 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 FontStretch 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 FontStretch. /// 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"); } FontStretch fontStretch = new FontStretch(); if (!FontStretches.FontStretchStringToKnownStretch(s, ci, ref fontStretch)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontStretch; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontStretch, /// 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 FontStretch.FromOpenTypeStretch, not an arbitrary class/method /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontStretch) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontStretch).GetMethod("FromOpenTypeStretch", new Type[]{typeof(int)}); FontStretch c = (FontStretch)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeStretch()}); } else if (destinationType == typeof(string)) { FontStretch c = (FontStretch)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: FontStretch 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 { ////// FontStretchConverter class parses a font stretch string. /// public sealed class FontStretchConverter : 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 FontStretch 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 FontStretch. /// 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"); } FontStretch fontStretch = new FontStretch(); if (!FontStretches.FontStretchStringToKnownStretch(s, ci, ref fontStretch)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontStretch; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontStretch, /// 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 FontStretch.FromOpenTypeStretch, not an arbitrary class/method /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontStretch) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontStretch).GetMethod("FromOpenTypeStretch", new Type[]{typeof(int)}); FontStretch c = (FontStretch)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeStretch()}); } else if (destinationType == typeof(string)) { FontStretch c = (FontStretch)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
- Image.cs
- PerformanceCountersBase.cs
- ClientConfigurationHost.cs
- CqlIdentifiers.cs
- Floater.cs
- FutureFactory.cs
- ScrollBar.cs
- FormsAuthenticationEventArgs.cs
- WebControl.cs
- Context.cs
- DefaultDiscoveryServiceExtension.cs
- XmlSerializationGeneratedCode.cs
- PersistenceMetadataNamespace.cs
- NavigatorInput.cs
- FileRecordSequenceCompletedAsyncResult.cs
- TextBox.cs
- ListBindableAttribute.cs
- AttachedAnnotationChangedEventArgs.cs
- DataContractAttribute.cs
- ComponentEvent.cs
- TableRow.cs
- DataGridViewCheckBoxCell.cs
- TextRenderer.cs
- ConstraintManager.cs
- DataPagerFieldCollection.cs
- RootBrowserWindowProxy.cs
- ColumnBinding.cs
- EntityTypeBase.cs
- TrackingStringDictionary.cs
- DateTimeOffsetStorage.cs
- EmbossBitmapEffect.cs
- RepeaterItemEventArgs.cs
- MemoryMappedFileSecurity.cs
- XmlSchemaAnnotation.cs
- XMLDiffLoader.cs
- WorkflowViewManager.cs
- TailPinnedEventArgs.cs
- GregorianCalendar.cs
- CodeNamespaceImportCollection.cs
- DateTimeSerializationSection.cs
- QilReference.cs
- CustomAttributeBuilder.cs
- SoapIncludeAttribute.cs
- JavaScriptString.cs
- ArrangedElementCollection.cs
- datacache.cs
- PointCollectionConverter.cs
- ConsumerConnectionPointCollection.cs
- EnvironmentPermission.cs
- FormConverter.cs
- TrackingQueryElement.cs
- SchemaManager.cs
- Int32.cs
- DBConcurrencyException.cs
- Model3DGroup.cs
- NativeMethods.cs
- SslStream.cs
- MimeParameterWriter.cs
- SafeProcessHandle.cs
- ContractCodeDomInfo.cs
- BitmapEffectInputData.cs
- CompleteWizardStep.cs
- SafePointer.cs
- IncrementalHitTester.cs
- SystemIPInterfaceStatistics.cs
- TextEditorMouse.cs
- DeferredReference.cs
- SqlDependencyListener.cs
- StrokeNodeEnumerator.cs
- XmlHierarchicalEnumerable.cs
- DbConnectionStringCommon.cs
- OpenTypeLayout.cs
- RowUpdatingEventArgs.cs
- TreeWalker.cs
- TreeNodeCollection.cs
- WindowsNonControl.cs
- ClientBuildManagerTypeDescriptionProviderBridge.cs
- HostedElements.cs
- LinkUtilities.cs
- UserInitiatedNavigationPermission.cs
- ListDependantCardsRequest.cs
- AdapterUtil.cs
- WebPartsSection.cs
- EmptyQuery.cs
- DataGridColumnFloatingHeader.cs
- FileDialog.cs
- CookieParameter.cs
- KnownTypes.cs
- EventRouteFactory.cs
- SafeSystemMetrics.cs
- SpeechSynthesizer.cs
- sqlstateclientmanager.cs
- XmlChildNodes.cs
- TypeForwardedToAttribute.cs
- FormViewInsertedEventArgs.cs
- ExtendedProtectionPolicyTypeConverter.cs
- ResourceReader.cs
- ConnectionStringsExpressionBuilder.cs
- ErasingStroke.cs
- externdll.cs