Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / ColorConverter.cs / 1305600 / 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
- PageCanvasSize.cs
- HttpFileCollection.cs
- FormatConvertedBitmap.cs
- HijriCalendar.cs
- Padding.cs
- SqlParameterCollection.cs
- DataConnectionHelper.cs
- SystemParameters.cs
- TemplateManager.cs
- GenericXmlSecurityToken.cs
- GeneralTransform3DGroup.cs
- UniqueConstraint.cs
- safex509handles.cs
- SchemaImporter.cs
- Dynamic.cs
- altserialization.cs
- SecuritySessionClientSettings.cs
- listitem.cs
- RIPEMD160.cs
- TextServicesContext.cs
- ProjectionPlan.cs
- DataGridViewHeaderCell.cs
- UniqueConstraint.cs
- XmlSchemaNotation.cs
- PanelDesigner.cs
- Select.cs
- BitmapEffectGeneralTransform.cs
- DataGridViewCellToolTipTextNeededEventArgs.cs
- RegisteredHiddenField.cs
- PropertyGridEditorPart.cs
- SafeLocalMemHandle.cs
- WebPartConnectionsCancelEventArgs.cs
- SqlRemoveConstantOrderBy.cs
- MediaCommands.cs
- ToolboxItemCollection.cs
- DbDataReader.cs
- ILGenerator.cs
- AutomationElement.cs
- KeyboardDevice.cs
- DynamicDiscoveryDocument.cs
- RenderingEventArgs.cs
- FixedSOMTextRun.cs
- WebPartCancelEventArgs.cs
- WebPartMinimizeVerb.cs
- RegexMatch.cs
- EntityDataSourceView.cs
- List.cs
- PageSetupDialog.cs
- EdgeProfileValidation.cs
- StylusPoint.cs
- TypedTableBase.cs
- Image.cs
- HttpHandler.cs
- ColumnResizeAdorner.cs
- HtmlElement.cs
- CaretElement.cs
- FontNamesConverter.cs
- ToolboxComponentsCreatingEventArgs.cs
- validationstate.cs
- HostnameComparisonMode.cs
- BaseResourcesBuildProvider.cs
- ListenerConnectionModeReader.cs
- SchemeSettingElement.cs
- LinqDataView.cs
- ContextMenu.cs
- DeclarativeCatalogPart.cs
- RecognizeCompletedEventArgs.cs
- HttpAsyncResult.cs
- XmlLanguageConverter.cs
- BamlWriter.cs
- ExtendedProtectionPolicy.cs
- StringExpressionSet.cs
- Win32KeyboardDevice.cs
- MetadataArtifactLoaderResource.cs
- PageThemeCodeDomTreeGenerator.cs
- _ContextAwareResult.cs
- AppDomainShutdownMonitor.cs
- MeasurementDCInfo.cs
- CharacterHit.cs
- PageThemeBuildProvider.cs
- BinaryObjectReader.cs
- XmlFormatReaderGenerator.cs
- ConfigXmlWhitespace.cs
- ConnectorRouter.cs
- MasterPage.cs
- ConfigurationLocationCollection.cs
- CacheManager.cs
- ArglessEventHandlerProxy.cs
- ClientSettings.cs
- SafeNativeMethodsOther.cs
- BamlLocalizableResourceKey.cs
- DocumentAutomationPeer.cs
- XmlProcessingInstruction.cs
- ProfilePropertySettings.cs
- MarshalByRefObject.cs
- PassportAuthentication.cs
- EventProviderWriter.cs
- SafeRightsManagementEnvironmentHandle.cs
- WindowsImpersonationContext.cs
- OracleCommandSet.cs