Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Core / CSharp / System / Windows / Media / ColorConverter.cs / 1 / ColorConverter.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2001, 2002 // // File: ColorConverter.cs //----------------------------------------------------------------------------- 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.Media { ////// ColorConverter Parses a color. /// public sealed class ColorConverter : 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)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFromString /// public static new object ConvertFromString(string value) { if ( null == value) { return null; } return Parsers.ParseColor(value, null); } ////// ConvertFrom - attempt to convert to a Color 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 Color. /// public override object ConvertFrom(ITypeDescriptorContext td, System.Globalization.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"); } return Parsers.ParseColor(value as string, ci, td); } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a Color, /// 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 Color.FromArgb, not an arbitrary class/method /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is Color) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(Color).GetMethod("FromArgb", new Type[]{typeof(byte), typeof(byte), typeof(byte), typeof(byte)}); Color c = (Color)value; return new InstanceDescriptor(mi, new object[]{c.A, c.R, c.G, c.B}); } else if (destinationType == typeof(string)) { Color c = (Color)value; return c.ToString(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. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, 2001, 2002 // // File: ColorConverter.cs //----------------------------------------------------------------------------- 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.Media { ////// ColorConverter Parses a color. /// public sealed class ColorConverter : 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)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFromString /// public static new object ConvertFromString(string value) { if ( null == value) { return null; } return Parsers.ParseColor(value, null); } ////// ConvertFrom - attempt to convert to a Color 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 Color. /// public override object ConvertFrom(ITypeDescriptorContext td, System.Globalization.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"); } return Parsers.ParseColor(value as string, ci, td); } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a Color, /// 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 Color.FromArgb, not an arbitrary class/method /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is Color) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(Color).GetMethod("FromArgb", new Type[]{typeof(byte), typeof(byte), typeof(byte), typeof(byte)}); Color c = (Color)value; return new InstanceDescriptor(mi, new object[]{c.A, c.R, c.G, c.B}); } else if (destinationType == typeof(string)) { Color c = (Color)value; return c.ToString(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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ObjectToIdCache.cs
- ExpressionBindingCollection.cs
- IMembershipProvider.cs
- XNodeNavigator.cs
- CodeEventReferenceExpression.cs
- AnimationLayer.cs
- RichTextBox.cs
- SqlComparer.cs
- IndexOutOfRangeException.cs
- RootBrowserWindowProxy.cs
- PassportAuthenticationModule.cs
- DocumentViewerBaseAutomationPeer.cs
- WMICapabilities.cs
- NetNamedPipeSecurity.cs
- StaticTextPointer.cs
- configsystem.cs
- EllipticalNodeOperations.cs
- SerializerWriterEventHandlers.cs
- ConfigurationStrings.cs
- PropertyNames.cs
- DispatcherExceptionEventArgs.cs
- PropertyItem.cs
- DataSourceHelper.cs
- RefExpr.cs
- TimelineClockCollection.cs
- LocatorBase.cs
- DateBoldEvent.cs
- TypeConverter.cs
- XmlSchemaType.cs
- TextTabProperties.cs
- CompatibleComparer.cs
- TypeUsageBuilder.cs
- Int16Storage.cs
- MediaSystem.cs
- DynamicValueConverter.cs
- TableFieldsEditor.cs
- IndexedGlyphRun.cs
- TextServicesProperty.cs
- DatePicker.cs
- DoubleCollection.cs
- VarRemapper.cs
- DesignerAdRotatorAdapter.cs
- SpeakCompletedEventArgs.cs
- Int16AnimationUsingKeyFrames.cs
- CurrentTimeZone.cs
- DbXmlEnabledProviderManifest.cs
- CodeAccessSecurityEngine.cs
- errorpatternmatcher.cs
- XmlJsonWriter.cs
- HttpHostedTransportConfiguration.cs
- ControlTemplate.cs
- CustomErrorCollection.cs
- MatrixIndependentAnimationStorage.cs
- ValidationException.cs
- GetImportedCardRequest.cs
- _Connection.cs
- OdbcReferenceCollection.cs
- RankException.cs
- SafeRightsManagementHandle.cs
- RoutingConfiguration.cs
- RemoteWebConfigurationHostServer.cs
- Opcode.cs
- Matrix3DConverter.cs
- EventArgs.cs
- QilName.cs
- PointHitTestParameters.cs
- MultiAsyncResult.cs
- DefinitionUpdate.cs
- CellParaClient.cs
- WindowsRichEdit.cs
- DocumentPaginator.cs
- RouteData.cs
- Menu.cs
- InvalidOperationException.cs
- SoapExtensionReflector.cs
- EntitySqlQueryCacheKey.cs
- StyleHelper.cs
- Switch.cs
- UTF7Encoding.cs
- DbProviderSpecificTypePropertyAttribute.cs
- Viewport3DAutomationPeer.cs
- TextTreeUndoUnit.cs
- ListenerConfig.cs
- ArgumentException.cs
- IisTraceWebEventProvider.cs
- CodeTypeReferenceExpression.cs
- WebPartTracker.cs
- UserControl.cs
- LinearKeyFrames.cs
- ObjectDataSourceDisposingEventArgs.cs
- ProviderCollection.cs
- DirectoryObjectSecurity.cs
- SafeCertificateStore.cs
- SplitterCancelEvent.cs
- ToolStripControlHost.cs
- codemethodreferenceexpression.cs
- XamlInt32CollectionSerializer.cs
- DayRenderEvent.cs
- CodeGeneratorAttribute.cs
- WindowsListViewScroll.cs