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
- SoapHeader.cs
- UriTemplatePathPartiallyEquivalentSet.cs
- Input.cs
- MetafileHeader.cs
- PagesSection.cs
- InvokeGenerator.cs
- Rfc2898DeriveBytes.cs
- Command.cs
- ContractBase.cs
- InvariantComparer.cs
- ParseChildrenAsPropertiesAttribute.cs
- SQLGuidStorage.cs
- WebUtility.cs
- WindowsPrincipal.cs
- MissingMethodException.cs
- DataObjectCopyingEventArgs.cs
- HttpModulesSection.cs
- Graphics.cs
- Grid.cs
- SortKey.cs
- DoubleAnimationBase.cs
- EncodingNLS.cs
- LowerCaseStringConverter.cs
- StoreItemCollection.cs
- SafeRegistryHandle.cs
- WindowsClaimSet.cs
- XmlSchemaProviderAttribute.cs
- COM2EnumConverter.cs
- AssemblyInfo.cs
- VersionValidator.cs
- CommandEventArgs.cs
- _WebProxyDataBuilder.cs
- CategoryGridEntry.cs
- XmlNotation.cs
- Tool.cs
- Random.cs
- MimeAnyImporter.cs
- EncoderParameter.cs
- TableHeaderCell.cs
- IdleTimeoutMonitor.cs
- DetailsViewUpdateEventArgs.cs
- ConnectivityStatus.cs
- UpdateTracker.cs
- ParallelTimeline.cs
- DataGridViewControlCollection.cs
- DataGridViewCellToolTipTextNeededEventArgs.cs
- GridViewPageEventArgs.cs
- OperationSelectorBehavior.cs
- WpfSharedXamlSchemaContext.cs
- OdbcConnectionHandle.cs
- CorrelationToken.cs
- SpanIndex.cs
- SQLMoney.cs
- Crc32.cs
- PrivilegeNotHeldException.cs
- DataTemplate.cs
- ListBoxItem.cs
- WindowsBrush.cs
- EntityDataSourceQueryBuilder.cs
- CodeTypeMember.cs
- AngleUtil.cs
- GroupByExpressionRewriter.cs
- NavigationCommands.cs
- DataServiceOperationContext.cs
- SafeLibraryHandle.cs
- Size3D.cs
- Base64WriteStateInfo.cs
- GiveFeedbackEvent.cs
- RangeValueProviderWrapper.cs
- OletxResourceManager.cs
- TransactionFilter.cs
- XmlHelper.cs
- SrgsText.cs
- AssemblyResolver.cs
- PanelContainerDesigner.cs
- ScopeElement.cs
- AsyncContentLoadedEventArgs.cs
- WebPartConnectionsConnectVerb.cs
- LinkLabelLinkClickedEvent.cs
- X509ChainElement.cs
- TypedTableBaseExtensions.cs
- TableCellsCollectionEditor.cs
- TraceSection.cs
- BitmapMetadataBlob.cs
- FlowDocumentPaginator.cs
- Converter.cs
- OdbcConnectionOpen.cs
- EmptyEnumerable.cs
- CodeCommentStatement.cs
- XpsResource.cs
- FormParameter.cs
- PageContent.cs
- TextDecorationCollection.cs
- Bold.cs
- SecurityRuntime.cs
- CryptographicAttribute.cs
- HwndHostAutomationPeer.cs
- ObjectDataSourceChooseMethodsPanel.cs
- sqlpipe.cs
- DataGridViewRowStateChangedEventArgs.cs