Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Framework / System / Windows / FontSizeConverter.cs / 1305600 / 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
- RectIndependentAnimationStorage.cs
- ToolStripManager.cs
- WindowsTab.cs
- DictionaryGlobals.cs
- WebPartVerbsEventArgs.cs
- QueryInterceptorAttribute.cs
- InheritanceContextChangedEventManager.cs
- BitmapEffectDrawing.cs
- XPathEmptyIterator.cs
- ProxyWebPart.cs
- SelectQueryOperator.cs
- UrlPropertyAttribute.cs
- EnumCodeDomSerializer.cs
- _HTTPDateParse.cs
- XmlSchemaExternal.cs
- ToolBarPanel.cs
- ChannelPool.cs
- BufferedWebEventProvider.cs
- WebPartDisplayMode.cs
- StringValidator.cs
- ScaleTransform.cs
- XmlChildNodes.cs
- NativeMethods.cs
- CriticalHandle.cs
- ToolStripDropDownMenu.cs
- Membership.cs
- DataGridViewBindingCompleteEventArgs.cs
- HtmlInputText.cs
- ToolStripSystemRenderer.cs
- WindowsIdentity.cs
- SignedXmlDebugLog.cs
- TraceProvider.cs
- DelayDesigner.cs
- ListControlBuilder.cs
- EmptyReadOnlyDictionaryInternal.cs
- CollectionBase.cs
- VerificationAttribute.cs
- IDQuery.cs
- ChannelDispatcher.cs
- HttpApplication.cs
- DocumentPaginator.cs
- RotateTransform3D.cs
- ActivationServices.cs
- BaseCollection.cs
- ConfigurationManager.cs
- TableCellAutomationPeer.cs
- FocusTracker.cs
- DependencyObject.cs
- PointKeyFrameCollection.cs
- DesignerAdRotatorAdapter.cs
- CollectionType.cs
- HMACSHA256.cs
- NavigationWindow.cs
- ThemeInfoAttribute.cs
- MonthCalendar.cs
- FactoryMaker.cs
- MetadataFile.cs
- ImageMapEventArgs.cs
- QueryResult.cs
- RenderTargetBitmap.cs
- PersianCalendar.cs
- _emptywebproxy.cs
- ReflectionHelper.cs
- ExpressionHelper.cs
- DocumentApplicationState.cs
- CodeCompiler.cs
- XPathScanner.cs
- AccessibleObject.cs
- SocketElement.cs
- LayeredChannelListener.cs
- CompiledQueryCacheEntry.cs
- OnOperation.cs
- XPathBinder.cs
- XPathMultyIterator.cs
- Scene3D.cs
- OneToOneMappingSerializer.cs
- WebRequestModulesSection.cs
- MsdtcWrapper.cs
- WebPartsPersonalization.cs
- AnnotationMap.cs
- IpcServerChannel.cs
- WindowsRebar.cs
- WorkflowTerminatedException.cs
- WsdlContractConversionContext.cs
- AspNetHostingPermission.cs
- ListBoxItemAutomationPeer.cs
- ConnectionStringsExpressionBuilder.cs
- TrackingServices.cs
- FixedSOMTableCell.cs
- ValueUtilsSmi.cs
- DesignerTransactionCloseEvent.cs
- ManualResetEventSlim.cs
- UnitySerializationHolder.cs
- ParamArrayAttribute.cs
- OutputWindow.cs
- WebPartConnectionsCloseVerb.cs
- EngineSite.cs
- ConvertEvent.cs
- NavigationFailedEventArgs.cs
- TableRowGroup.cs