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
- SessionEndingCancelEventArgs.cs
- WebServiceAttribute.cs
- DirtyTextRange.cs
- ConnectionsZoneAutoFormat.cs
- WebPartChrome.cs
- GenericsInstances.cs
- TextBox.cs
- X509AsymmetricSecurityKey.cs
- DotExpr.cs
- PostBackTrigger.cs
- Win32NamedPipes.cs
- UniformGrid.cs
- TextOnlyOutput.cs
- SinglePageViewer.cs
- SafeEventHandle.cs
- SessionEndedEventArgs.cs
- ComponentManagerBroker.cs
- NativeMethods.cs
- FontDriver.cs
- AdPostCacheSubstitution.cs
- HttpContextServiceHost.cs
- DataRelationPropertyDescriptor.cs
- TTSEngineTypes.cs
- GenericRootAutomationPeer.cs
- SHA1.cs
- WebPartVerbsEventArgs.cs
- GridToolTip.cs
- CheckBoxRenderer.cs
- EncoderNLS.cs
- CallSiteHelpers.cs
- SymmetricAlgorithm.cs
- SchemaManager.cs
- UdpTransportBindingElement.cs
- HostingEnvironmentWrapper.cs
- loginstatus.cs
- SHA512.cs
- GuidelineSet.cs
- ToolStripSeparator.cs
- InkCanvasFeedbackAdorner.cs
- SafeCryptoHandles.cs
- EntityProxyTypeInfo.cs
- ListViewItemEventArgs.cs
- TreeNodeStyleCollection.cs
- CompensationDesigner.cs
- FormViewDeleteEventArgs.cs
- GridView.cs
- AbsoluteQuery.cs
- PermissionAttributes.cs
- StringInfo.cs
- ListChangedEventArgs.cs
- ToggleButton.cs
- SqlWorkflowPersistenceService.cs
- ButtonChrome.cs
- PointHitTestResult.cs
- SingleKeyFrameCollection.cs
- ConnectionManagementSection.cs
- DocumentGridPage.cs
- TaiwanCalendar.cs
- RNGCryptoServiceProvider.cs
- EmptyCollection.cs
- StateElement.cs
- Publisher.cs
- Expander.cs
- RegexCharClass.cs
- RangeValuePattern.cs
- ToolStripDropDownMenu.cs
- FacetChecker.cs
- StylusOverProperty.cs
- SeparatorAutomationPeer.cs
- ParameterReplacerVisitor.cs
- HtmlControl.cs
- EarlyBoundInfo.cs
- ServiceHostFactory.cs
- SmiMetaDataProperty.cs
- DataBindEngine.cs
- Evidence.cs
- SqlParameterCollection.cs
- FontCacheLogic.cs
- ColorTransformHelper.cs
- ModelVisual3D.cs
- remotingproxy.cs
- WebBaseEventKeyComparer.cs
- FixedFindEngine.cs
- StylusDownEventArgs.cs
- SectionInput.cs
- dbdatarecord.cs
- UInt32Converter.cs
- PropertyIdentifier.cs
- VoiceSynthesis.cs
- TextEffect.cs
- MetafileHeader.cs
- BrowserCapabilitiesFactoryBase.cs
- ChineseLunisolarCalendar.cs
- CodeCatchClauseCollection.cs
- FontEmbeddingManager.cs
- GlobalAclOperationRequirement.cs
- Attributes.cs
- CryptoApi.cs
- CallContext.cs
- ChildChangedEventArgs.cs