Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Framework / System / Windows / FontSizeConverter.cs / 1 / FontSizeConverter.cs
//---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: FontSizeConverter.cs // // Description: Converter for FontSize to Double // // History: // 01/12/05 : GHermann - Ported from FontSize // //--------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; // for ConstructorInfo using System.Globalization; // for CultureInfo using MS.Utility; // For ExceptionStringTable using System.Windows.Media; // for Typeface using System.Windows.Controls; // for ReadingPanel using System.Windows.Documents; using System.Windows.Markup; using MS.Internal; using MS.Internal.Text; using MS.Internal.Documents; namespace System.Windows { ////// TypeConverter to convert FontSize to/from other types. /// Currently: string, int, float, and double are supported. /// // Used by Parser to parse BoxUnits from markup. public class FontSizeConverter : TypeConverter { ////// TypeConverter method override. /// /// ITypeDescriptorContext /// Type to convert from ///true if conversion is possible public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { return (sourceType == typeof(string) || sourceType == typeof(int) || sourceType == typeof(float) || sourceType == typeof(double)); } ////// 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)) { return true; } return base.CanConvertTo(context, destinationType); } ////// TypeConverter method implementation. /// /// ITypeDescriptorContext /// Current culture (see CLR specs) /// value to convert from ///value that is result of conversion public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value == null) { throw GetConvertFromException(value); } // NB: The culture passed from Avalon parser should always be the invariant culture. // Do we care about usage in other circumstances? string text = value as string; if (text != null) { double amount; FromString(text, culture, out amount); return amount; } if (value is System.Int32 || value is System.Single || value is System.Double) { return (double)value; } // Can't convert, wrong type return null; } ////// TypeConverter method implementation. /// /// ITypeDescriptorContext /// current culture (see CLR specs) /// value to convert from /// Type to convert to ///converted value public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } double fs = (double)value; if (destinationType == typeof(string)) { return fs.ToString(culture); } if (destinationType == typeof(int)) { return (int)fs; } if (destinationType == typeof(float)) { return (float)fs; } if (destinationType == typeof(double)) { return fs; } return base.ConvertTo(context, culture, value, destinationType); } ////// Convert a string into an amount and a font size type that can be used to create /// and instance of a Fontsize, or to serialize in a more compact representation to /// a baml stream. /// internal static void FromString( string text, CultureInfo culture, out double amount) { amount = LengthConverter.FromString(text, culture); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // Copyright (C) Microsoft Corporation. All rights reserved. // // File: FontSizeConverter.cs // // Description: Converter for FontSize to Double // // History: // 01/12/05 : GHermann - Ported from FontSize // //--------------------------------------------------------------------------- using System; using System.IO; using System.Diagnostics; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; // for ConstructorInfo using System.Globalization; // for CultureInfo using MS.Utility; // For ExceptionStringTable using System.Windows.Media; // for Typeface using System.Windows.Controls; // for ReadingPanel using System.Windows.Documents; using System.Windows.Markup; using MS.Internal; using MS.Internal.Text; using MS.Internal.Documents; namespace System.Windows { ////// TypeConverter to convert FontSize to/from other types. /// Currently: string, int, float, and double are supported. /// // Used by Parser to parse BoxUnits from markup. public class FontSizeConverter : TypeConverter { ////// TypeConverter method override. /// /// ITypeDescriptorContext /// Type to convert from ///true if conversion is possible public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType) { return (sourceType == typeof(string) || sourceType == typeof(int) || sourceType == typeof(float) || sourceType == typeof(double)); } ////// 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)) { return true; } return base.CanConvertTo(context, destinationType); } ////// TypeConverter method implementation. /// /// ITypeDescriptorContext /// Current culture (see CLR specs) /// value to convert from ///value that is result of conversion public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value) { if (value == null) { throw GetConvertFromException(value); } // NB: The culture passed from Avalon parser should always be the invariant culture. // Do we care about usage in other circumstances? string text = value as string; if (text != null) { double amount; FromString(text, culture, out amount); return amount; } if (value is System.Int32 || value is System.Single || value is System.Double) { return (double)value; } // Can't convert, wrong type return null; } ////// TypeConverter method implementation. /// /// ITypeDescriptorContext /// current culture (see CLR specs) /// value to convert from /// Type to convert to ///converted value public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType == null) { throw new ArgumentNullException("destinationType"); } double fs = (double)value; if (destinationType == typeof(string)) { return fs.ToString(culture); } if (destinationType == typeof(int)) { return (int)fs; } if (destinationType == typeof(float)) { return (float)fs; } if (destinationType == typeof(double)) { return fs; } return base.ConvertTo(context, culture, value, destinationType); } ////// Convert a string into an amount and a font size type that can be used to create /// and instance of a Fontsize, or to serialize in a more compact representation to /// a baml stream. /// internal static void FromString( string text, CultureInfo culture, out double amount) { amount = LengthConverter.FromString(text, culture); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- MobileUserControl.cs
- ParameterRefs.cs
- XmlEventCache.cs
- AstTree.cs
- User.cs
- counter.cs
- UnitySerializationHolder.cs
- OrderPreservingSpoolingTask.cs
- FixedTextContainer.cs
- CookielessHelper.cs
- SecUtil.cs
- StyleSelector.cs
- PaintEvent.cs
- Single.cs
- AspNetSynchronizationContext.cs
- RoleGroupCollection.cs
- ValueSerializerAttribute.cs
- BitmapDecoder.cs
- SqlOuterApplyReducer.cs
- Logging.cs
- RtfControls.cs
- TrackPoint.cs
- Baml6Assembly.cs
- InvokeMethodActivityDesigner.cs
- ByteStorage.cs
- HtmlTableRow.cs
- ExpressionBuilder.cs
- ProgressPage.cs
- SqlCachedBuffer.cs
- GCHandleCookieTable.cs
- ellipse.cs
- Bits.cs
- RSAOAEPKeyExchangeDeformatter.cs
- SQLInt32.cs
- ContextDataSourceContextData.cs
- UIElementHelper.cs
- Predicate.cs
- BuildProvider.cs
- AccessDataSourceWizardForm.cs
- BaseResourcesBuildProvider.cs
- RequestCache.cs
- Ref.cs
- DisplayMemberTemplateSelector.cs
- DelegateHelpers.Generated.cs
- DictionarySectionHandler.cs
- Accessible.cs
- X509SecurityTokenAuthenticator.cs
- VolatileEnlistmentMultiplexing.cs
- XmlDocumentType.cs
- ClonableStack.cs
- XamlInt32CollectionSerializer.cs
- KoreanCalendar.cs
- RecognizeCompletedEventArgs.cs
- MostlySingletonList.cs
- Assert.cs
- IsolatedStorageFile.cs
- PeerNameRegistration.cs
- ActivityValidationServices.cs
- ExtendedPropertyDescriptor.cs
- Image.cs
- XmlChildEnumerator.cs
- MenuItemBindingCollection.cs
- DataGridViewCellStateChangedEventArgs.cs
- BamlLocalizerErrorNotifyEventArgs.cs
- Module.cs
- DragCompletedEventArgs.cs
- RenamedEventArgs.cs
- InstanceOwnerException.cs
- TreeBuilder.cs
- BlurBitmapEffect.cs
- CombinedGeometry.cs
- UshortList2.cs
- FrameworkPropertyMetadata.cs
- QuadraticBezierSegment.cs
- TypeConverterHelper.cs
- CodeCastExpression.cs
- EventWaitHandleSecurity.cs
- FileStream.cs
- EventOpcode.cs
- FullTextLine.cs
- GatewayIPAddressInformationCollection.cs
- Win32SafeHandles.cs
- TreeIterators.cs
- CatalogPartChrome.cs
- CompilerCollection.cs
- OrthographicCamera.cs
- LinqDataView.cs
- SEHException.cs
- ChtmlTextWriter.cs
- OdbcRowUpdatingEvent.cs
- DataSourceHelper.cs
- SizeConverter.cs
- SamlAuthenticationStatement.cs
- MsmqHostedTransportConfiguration.cs
- CodeSpit.cs
- TextRenderer.cs
- ModelUIElement3D.cs
- HTTPNotFoundHandler.cs
- PageRequestManager.cs
- Point4DValueSerializer.cs