Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Core / CSharp / System / Windows / FontStyleConverter.cs / 1 / FontStyleConverter.cs
//---------------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // Description: FontStyle 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 { ////// FontStyleConverter class parses a font style string. /// public sealed class FontStyleConverter : 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 FontStyle 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 FontStyle. /// 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"); } FontStyle fontStyle = new FontStyle(); if (!FontStyles.FontStyleStringToKnownStyle(s, ci, ref fontStyle)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontStyle; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontStyle, /// 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 FontStyle, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontStyle) { if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(FontStyle).GetConstructor(new Type[]{typeof(int)}); int c = ((FontStyle)value).GetStyleForInternalConstruction(); return new InstanceDescriptor(ci, new object[]{c}); } else if (destinationType == typeof(string)) { FontStyle c = (FontStyle)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: FontStyle 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 { ////// FontStyleConverter class parses a font style string. /// public sealed class FontStyleConverter : 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 FontStyle 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 FontStyle. /// 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"); } FontStyle fontStyle = new FontStyle(); if (!FontStyles.FontStyleStringToKnownStyle(s, ci, ref fontStyle)) throw new FormatException(SR.Get(SRID.Parsers_IllegalToken)); return fontStyle; } ////// TypeConverter method implementation. /// ////// An NotSupportedException is thrown if the example object is null or is not a FontStyle, /// 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 FontStyle, not an arbitrary class /// [SecurityCritical] public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) { if (destinationType != null && value is FontStyle) { if (destinationType == typeof(InstanceDescriptor)) { ConstructorInfo ci = typeof(FontStyle).GetConstructor(new Type[]{typeof(int)}); int c = ((FontStyle)value).GetStyleForInternalConstruction(); return new InstanceDescriptor(ci, new object[]{c}); } else if (destinationType == typeof(string)) { FontStyle c = (FontStyle)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
- TransportSecurityProtocolFactory.cs
- ClientSettingsStore.cs
- AuthenticationConfig.cs
- BuildProvider.cs
- InstalledFontCollection.cs
- EntityContainerEmitter.cs
- ReferencedType.cs
- DataTableTypeConverter.cs
- BitHelper.cs
- WebPartEditorCancelVerb.cs
- RpcCryptoRequest.cs
- SqlExpressionNullability.cs
- MethodRental.cs
- CapabilitiesState.cs
- JavascriptCallbackBehaviorAttribute.cs
- PropertyValue.cs
- TextTreeDeleteContentUndoUnit.cs
- ObjectStateEntryDbUpdatableDataRecord.cs
- TrackingProfileCache.cs
- SchemaElement.cs
- BamlBinaryReader.cs
- DataControlPagerLinkButton.cs
- SoapMessage.cs
- TileBrush.cs
- BitmapMetadataEnumerator.cs
- Roles.cs
- DataQuery.cs
- FileDialog_Vista.cs
- PeerObject.cs
- ImageEditor.cs
- CellCreator.cs
- DataGridAddNewRow.cs
- FilteredSchemaElementLookUpTable.cs
- GiveFeedbackEventArgs.cs
- CellCreator.cs
- GenericTextProperties.cs
- ProgressChangedEventArgs.cs
- ItemsPresenter.cs
- ErrorStyle.cs
- GridViewRowPresenterBase.cs
- StyleCollection.cs
- LineInfo.cs
- CornerRadiusConverter.cs
- DataGridViewTextBoxCell.cs
- ZoneMembershipCondition.cs
- CompensableActivity.cs
- XsltException.cs
- XmlSchemaSearchPattern.cs
- ConstraintManager.cs
- TextEditorDragDrop.cs
- Hashtable.cs
- AnonymousIdentificationSection.cs
- versioninfo.cs
- SecurityImpersonationBehavior.cs
- Serialization.cs
- ListSortDescriptionCollection.cs
- ToolStripItemEventArgs.cs
- CommaDelimitedStringAttributeCollectionConverter.cs
- WCFBuildProvider.cs
- DbParameterCollection.cs
- XhtmlTextWriter.cs
- ControlOperationInvoker.cs
- ControlUtil.cs
- SerializationAttributes.cs
- LocatorBase.cs
- InvalidAsynchronousStateException.cs
- HMACSHA1.cs
- CanExpandCollapseAllConverter.cs
- EnumValAlphaComparer.cs
- TextElement.cs
- DistinctQueryOperator.cs
- ImageInfo.cs
- MappedMetaModel.cs
- IndexerNameAttribute.cs
- RequiredAttributeAttribute.cs
- SmiContextFactory.cs
- DiscreteKeyFrames.cs
- ApplyTemplatesAction.cs
- SuppressMergeCheckAttribute.cs
- DbConnectionPoolCounters.cs
- ICollection.cs
- CodeTypeDeclaration.cs
- FixedLineResult.cs
- ProxyWebPartManager.cs
- ImageDrawing.cs
- InternalRelationshipCollection.cs
- PropertyFilterAttribute.cs
- ContravarianceAdapter.cs
- PersistChildrenAttribute.cs
- SequentialUshortCollection.cs
- NativeMethods.cs
- __ComObject.cs
- ColorConvertedBitmap.cs
- MobileCapabilities.cs
- WithParamAction.cs
- GlyphRunDrawing.cs
- OracleBFile.cs
- CollectionChangeEventArgs.cs
- InputLangChangeRequestEvent.cs
- IISUnsafeMethods.cs