Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / 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
- ValidationRuleCollection.cs
- VBIdentifierTrimConverter.cs
- OrthographicCamera.cs
- BamlRecordWriter.cs
- HtmlInputText.cs
- TriggerAction.cs
- StreamMarshaler.cs
- TreeBuilderBamlTranslator.cs
- WrapPanel.cs
- SByteStorage.cs
- ModelFunction.cs
- FixUp.cs
- RepeaterItem.cs
- ContentWrapperAttribute.cs
- EventLogTraceListener.cs
- HttpCacheVaryByContentEncodings.cs
- RectAnimationUsingKeyFrames.cs
- ClassValidator.cs
- QueryCreatedEventArgs.cs
- StringCollectionEditor.cs
- MimeParameterWriter.cs
- CancellationState.cs
- ColorKeyFrameCollection.cs
- InProcStateClientManager.cs
- PropertyKey.cs
- ReliabilityContractAttribute.cs
- BitFlagsGenerator.cs
- ItemContainerGenerator.cs
- XmlReflectionImporter.cs
- BrowserDefinition.cs
- CodeFieldReferenceExpression.cs
- DateTime.cs
- FrameSecurityDescriptor.cs
- Constants.cs
- Html32TextWriter.cs
- MenuItemStyleCollection.cs
- DefaultBindingPropertyAttribute.cs
- RequestQueue.cs
- ReadOnlyPropertyMetadata.cs
- XhtmlBasicListAdapter.cs
- Run.cs
- FlowDocumentScrollViewer.cs
- TriggerCollection.cs
- Menu.cs
- HtmlInputImage.cs
- BrowserTree.cs
- Bold.cs
- OptimisticConcurrencyException.cs
- EmptyQuery.cs
- DataGridViewUtilities.cs
- ObjectHelper.cs
- PointUtil.cs
- DoubleCollectionValueSerializer.cs
- Compiler.cs
- HwndHostAutomationPeer.cs
- ObjectMaterializedEventArgs.cs
- Comparer.cs
- IIS7WorkerRequest.cs
- ToolStripProgressBar.cs
- Stack.cs
- LoginUtil.cs
- ManagementScope.cs
- DocumentAutomationPeer.cs
- KeyConstraint.cs
- EntityContainerEmitter.cs
- TypeToStringValueConverter.cs
- ListCollectionView.cs
- NonPrimarySelectionGlyph.cs
- HtmlEmptyTagControlBuilder.cs
- DaylightTime.cs
- AssertFilter.cs
- CacheSection.cs
- ReachSerializationCacheItems.cs
- XdrBuilder.cs
- ProcessThread.cs
- AudioSignalProblemOccurredEventArgs.cs
- SQLInt32Storage.cs
- HttpStreamFormatter.cs
- GradientSpreadMethodValidation.cs
- GeometryCollection.cs
- XamlBrushSerializer.cs
- ApplicationSecurityInfo.cs
- WebPartConnectionsCloseVerb.cs
- ExpandableObjectConverter.cs
- XmlMapping.cs
- DecimalConstantAttribute.cs
- UnsafeNativeMethods.cs
- DbUpdateCommandTree.cs
- GridViewColumnCollection.cs
- FamilyCollection.cs
- ZipIORawDataFileBlock.cs
- MobileCapabilities.cs
- ReliableChannelBinder.cs
- HybridDictionary.cs
- SchemaInfo.cs
- Rotation3D.cs
- RelatedPropertyManager.cs
- OracleTransaction.cs
- PassportIdentity.cs
- WebEvents.cs