Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / FontWeightConverter.cs / 1305600 / FontWeightConverter.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: FontWeight type converter. // // History: // 01/25/2005 mleonov - Created. // //--------------------------------------------------------------------------- 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 { ////// FontWeightConverter class parses a font weight string. /// public sealed class FontWeightConverter : 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) || destinationType == typeof(string)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFrom - attempt to convert to a FontWeight 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 FontWeight. /// public override object ConvertFrom(ITypeDescriptorContext td, 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"); } FontWeight fontWeight = new FontWeight(); if (!FontWeights.FontWeightStringToKnownWeight(s, ci, ref fontWeight)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontWeight; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontWeight, /// 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 FontWeight, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontWeight) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontWeight).GetMethod("FromOpenTypeWeight", new Type[]{typeof(int)}); FontWeight c = (FontWeight)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeWeight()}); } else if (destinationType == typeof(string)) { FontWeight c = (FontWeight)value; return ((IFormattable)c).ToString(null, 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. // // Description: FontWeight type converter. // // History: // 01/25/2005 mleonov - Created. // //--------------------------------------------------------------------------- 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 { ////// FontWeightConverter class parses a font weight string. /// public sealed class FontWeightConverter : 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) || destinationType == typeof(string)) { return true; } return base.CanConvertTo(context, destinationType); } ////// ConvertFrom - attempt to convert to a FontWeight 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 FontWeight. /// public override object ConvertFrom(ITypeDescriptorContext td, 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"); } FontWeight fontWeight = new FontWeight(); if (!FontWeights.FontWeightStringToKnownWeight(s, ci, ref fontWeight)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontWeight; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontWeight, /// 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 FontWeight, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontWeight) { if (destinationType == typeof(InstanceDescriptor)) { MethodInfo mi = typeof(FontWeight).GetMethod("FromOpenTypeWeight", new Type[]{typeof(int)}); FontWeight c = (FontWeight)value; return new InstanceDescriptor(mi, new object[]{c.ToOpenTypeWeight()}); } else if (destinationType == typeof(string)) { FontWeight c = (FontWeight)value; return ((IFormattable)c).ToString(null, 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.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- FormatterConverter.cs
- ToolStripRenderer.cs
- MergeEnumerator.cs
- TextSchema.cs
- Pointer.cs
- log.cs
- LineInfo.cs
- SerializerDescriptor.cs
- SynchronizedDispatch.cs
- ObjectResult.cs
- BuildManagerHost.cs
- XmlILModule.cs
- DiagnosticTraceSource.cs
- Subtree.cs
- CodeDomSerializationProvider.cs
- Validator.cs
- WindowsListBox.cs
- DataGridAutoFormatDialog.cs
- Preprocessor.cs
- OutputCacheModule.cs
- QilReplaceVisitor.cs
- X509ChainPolicy.cs
- RotateTransform3D.cs
- ColumnWidthChangedEvent.cs
- FlowLayout.cs
- Matrix.cs
- WebSysDisplayNameAttribute.cs
- PrintPageEvent.cs
- XPathNodeHelper.cs
- LoginName.cs
- WithParamAction.cs
- DrawingVisual.cs
- PolygonHotSpot.cs
- BevelBitmapEffect.cs
- UidManager.cs
- DropShadowBitmapEffect.cs
- MenuScrollingVisibilityConverter.cs
- WindowsListViewSubItem.cs
- InkCanvasSelection.cs
- RIPEMD160Managed.cs
- BaseUriHelper.cs
- ValidationContext.cs
- RepeatButton.cs
- StrokeNodeOperations2.cs
- WebRequestModuleElement.cs
- FunctionImportElement.cs
- SessionSwitchEventArgs.cs
- RequestCachePolicyConverter.cs
- SearchForVirtualItemEventArgs.cs
- TriState.cs
- Tracer.cs
- ExternalFile.cs
- PieceDirectory.cs
- TreeNodeStyleCollection.cs
- FactoryMaker.cs
- RadioButtonRenderer.cs
- WebPartConnectionsCancelVerb.cs
- AttributeCollection.cs
- Solver.cs
- InfoCardSymmetricCrypto.cs
- RuleSetBrowserDialog.cs
- SHA256Managed.cs
- TableCellCollection.cs
- Int64Converter.cs
- CompiledQueryCacheEntry.cs
- CatchBlock.cs
- Rect3D.cs
- SafeNativeMethods.cs
- WindowsScroll.cs
- PingOptions.cs
- ProviderException.cs
- UIPropertyMetadata.cs
- DictionaryBase.cs
- TimerElapsedEvenArgs.cs
- EntityType.cs
- ConstrainedDataObject.cs
- MethodInfo.cs
- AttributeCollection.cs
- KeyMatchBuilder.cs
- OdbcRowUpdatingEvent.cs
- Permission.cs
- ThousandthOfEmRealPoints.cs
- TargetPerspective.cs
- HtmlPhoneCallAdapter.cs
- VBCodeProvider.cs
- QueryCursorEventArgs.cs
- OrderByBuilder.cs
- WebPartZoneBase.cs
- ObjectTag.cs
- BindingExpression.cs
- IndentedWriter.cs
- GeneralTransform3DGroup.cs
- ExpressionBuilder.cs
- ExpressionHelper.cs
- PipeConnection.cs
- PolyLineSegment.cs
- unitconverter.cs
- SocketInformation.cs
- ContextInformation.cs
- ResolveDuplex11AsyncResult.cs