Code:
/ DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Print / Reach / Serialization / FontTypeConverter.cs / 2 / FontTypeConverter.cs
/*++ Copyright (C) 2004 - 2005 Microsoft Corporation All rights reserved. Module Name: FontTypeConverter.cs Abstract: This file implements the FontTypeConverter used by the Xps Serialization APIs for serializing fonts to a Xps package. Author: [....] ([....]) 1-December-2004 Revision History: --*/ using System; using System.Collections.Generic; using System.ComponentModel; using System.IO; using System.Windows.Media; using System.Windows.Xps.Packaging; namespace System.Windows.Xps.Serialization { ////// This class implements a type converter for converting /// fonts to Uris. It handles the writing of the font /// to a Xps package and returns a package URI to the /// caller. It also handles reading a font from a /// Xps package given a Uri. /// public class FontTypeConverter : ExpandableObjectConverter { #region Public overrides for ExpandableObjectConverted ////// Returns whether this converter can convert an object /// of the given type to the type of this converter. /// /// /// An ITypeDescriptorContext that provides a format context. /// /// /// A Type that represents the type you want to convert from. /// ////// true if this converter can perform the conversion; /// otherwise, false. /// public override bool CanConvertFrom( ITypeDescriptorContext context, Type sourceType ) { return IsSupportedType(sourceType); } ////// Returns whether this converter can convert the object /// to the specified type. /// /// /// An ITypeDescriptorContext that provides a format context. /// /// /// A Type that represents the type you want to convert to. /// ////// true if this converter can perform the conversion; /// otherwise, false. /// public override bool CanConvertTo( ITypeDescriptorContext context, Type destinationType ) { return IsSupportedType(destinationType); } ////// Converts the given value to the type of this converter. /// /// /// An ITypeDescriptorContext that provides a format context. /// /// /// The CultureInfo to use as the current culture. /// /// /// The Object to convert. /// ////// An Object that represents the converted value. /// public override object ConvertFrom( ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value ) { if( value == null ) { throw new ArgumentNullException("value"); } if (!IsSupportedType(value.GetType())) { throw new NotSupportedException(ReachSR.Get(ReachSRID.Converter_ConvertFromNotSupported)); } throw new NotImplementedException(); } ////// Converts the given value object to the specified type, /// using the arguments. /// /// /// An ITypeDescriptorContext that provides a format context. /// /// /// A CultureInfo object. If null is passed, the current /// culture is assumed. /// /// /// The Object to convert. /// /// /// The Type to convert the value parameter to. /// ////// The Type to convert the value parameter to. /// public override object ConvertTo( ITypeDescriptorContext context, System.Globalization.CultureInfo culture, object value, Type destinationType ) { if( context == null ) { throw new ArgumentNullException("context"); } Toolbox.StartEvent(MS.Utility.EventTraceGuidId.DRXCONVERTFONTGUID); if (!IsSupportedType(destinationType)) { throw new NotSupportedException(ReachSR.Get(ReachSRID.Converter_ConvertToNotSupported)); } PackageSerializationManager manager = (PackageSerializationManager)context.GetService(typeof(XpsSerializationManager)); // // Ensure that we have a valid GlyphRun instance // GlyphRun fontGlyphRun = (GlyphRun)value; if (fontGlyphRun == null) { throw new ArgumentException(ReachSR.Get(ReachSRID.MustBeOfType, "value", "GlyphRun")); } // // Obtain the font serialization service from the serlialization manager. // IServiceProvider resourceServiceProvider = manager.ResourcePolicy; XpsFontSerializationService fontService = (XpsFontSerializationService)resourceServiceProvider.GetService(typeof(XpsFontSerializationService)); if (fontService == null) { throw new XpsSerializationException(ReachSR.Get(ReachSRID.ReachSerialization_NoFontService)); } // // Retrieve the current font subsetter // XpsFontSubsetter fontSubsetter = fontService.FontSubsetter; // // Add the font subset to the font subsetter and retrieve a Uri // to the font within the Xps package. // Uri resourceUri = fontSubsetter.ComputeFontSubset(fontGlyphRun); Toolbox.EndEvent(MS.Utility.EventTraceGuidId.DRXCONVERTFONTGUID); return resourceUri; } ////// Gets a collection of properties for the type of object /// specified by the value parameter. /// /// /// An ITypeDescriptorContext that provides a format context. /// /// /// An Object that specifies the type of object to get the /// properties for. /// /// /// An array of type Attribute that will be used as a filter. /// ////// A PropertyDescriptorCollection with the properties that are /// exposed for the component, or null if there are no properties. /// public override PropertyDescriptorCollection GetProperties( ITypeDescriptorContext context, object value, Attribute[] attributes ) { throw new NotImplementedException(); } #endregion Public overrides for ExpandableObjectConverted #region Private static helper methods ////// Looks up the type in a table to determine /// whether this type is supported by this /// class. /// /// /// Type to lookup in table. /// ////// True is supported; otherwise false. /// private static bool IsSupportedType( Type type ) { bool bSupported = false; foreach (Type t in SupportedTargetTypes) { if (t.Equals(type)) { bSupported = true; break; } } return bSupported; } #endregion Private static helper methods #region Private static data ////// A table of supported types for this type converter /// private static Type[] SupportedTargetTypes = { typeof(Uri) }; #endregion Private static data } } // 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
- WizardPanel.cs
- SoapIgnoreAttribute.cs
- RegionData.cs
- GridViewCellAutomationPeer.cs
- StagingAreaInputItem.cs
- ConvertEvent.cs
- CatalogUtil.cs
- FocusTracker.cs
- RenderContext.cs
- MostlySingletonList.cs
- RpcResponse.cs
- RelatedView.cs
- HitTestParameters3D.cs
- ArrayMergeHelper.cs
- Tile.cs
- AxParameterData.cs
- GcHandle.cs
- ViewEventArgs.cs
- GestureRecognitionResult.cs
- SessionPageStatePersister.cs
- TypeInfo.cs
- Convert.cs
- GridViewColumnHeader.cs
- ExpressionEditor.cs
- PerformanceCounterPermissionEntryCollection.cs
- TransformationRules.cs
- MethodCallConverter.cs
- LinqDataSourceContextEventArgs.cs
- DataObjectPastingEventArgs.cs
- DateTimeOffsetStorage.cs
- HuffmanTree.cs
- SharedHttpTransportManager.cs
- MimeParameters.cs
- StandardBindingReliableSessionElement.cs
- Select.cs
- BeginStoryboard.cs
- StateMachineHelpers.cs
- keycontainerpermission.cs
- XmlWellformedWriter.cs
- CmsInterop.cs
- NoResizeSelectionBorderGlyph.cs
- BamlRecordWriter.cs
- StagingAreaInputItem.cs
- PolicyException.cs
- ReflectPropertyDescriptor.cs
- SHA384Managed.cs
- SignatureHelper.cs
- ResourceSetExpression.cs
- DragCompletedEventArgs.cs
- XmlILAnnotation.cs
- Thickness.cs
- SmiEventSink_Default.cs
- CapabilitiesPattern.cs
- FormatterServices.cs
- ItemsPanelTemplate.cs
- Constraint.cs
- QueryableFilterRepeater.cs
- TreeViewDesigner.cs
- ListView.cs
- RedistVersionInfo.cs
- CreateWorkflowOwnerCommand.cs
- Separator.cs
- ServiceSecurityContext.cs
- MarkupCompiler.cs
- HtmlToClrEventProxy.cs
- LiteralControl.cs
- GeneralTransform3DGroup.cs
- ListViewCancelEventArgs.cs
- COM2IDispatchConverter.cs
- HexParser.cs
- ClientTargetSection.cs
- Misc.cs
- Stack.cs
- KeyboardDevice.cs
- QilParameter.cs
- SqlConnection.cs
- WsatExtendedInformation.cs
- FlowLayoutSettings.cs
- SQLRoleProvider.cs
- PolyQuadraticBezierSegmentFigureLogic.cs
- CodeFieldReferenceExpression.cs
- DataControlFieldTypeEditor.cs
- LabelEditEvent.cs
- ExceptionValidationRule.cs
- WindowsTab.cs
- UIElement3D.cs
- FormViewModeEventArgs.cs
- FileSystemInfo.cs
- WeakRefEnumerator.cs
- DigestTraceRecordHelper.cs
- Trace.cs
- TimeSpanSecondsOrInfiniteConverter.cs
- ClientBuildManager.cs
- BitmapCodecInfo.cs
- DataErrorValidationRule.cs
- Listen.cs
- RootNamespaceAttribute.cs
- EntityViewGenerationAttribute.cs
- X509SecurityTokenAuthenticator.cs
- SqlInternalConnectionSmi.cs