ResourcePropertyMemberCodeDomSerializer.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Designer / Host / Serialization / ResourcePropertyMemberCodeDomSerializer.cs / 2 / ResourcePropertyMemberCodeDomSerializer.cs

                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 
namespace System.ComponentModel.Design.Serialization {
 
    using System; 
    using System.CodeDom;
    using System.Collections; 
    using System.ComponentModel;
    using System.ComponentModel.Design;
    using System.Diagnostics;
    using System.Globalization; 
    using System.Resources;
    using System.Windows.Forms; 
    using System.Windows.Forms.Design; 

    ///  
    ///    This serializer replaces the property serializer for properties when we're
    ///    in localization mode.
    /// 
 	internal class ResourcePropertyMemberCodeDomSerializer : MemberCodeDomSerializer { 
        private CodeDomLocalizationModel _model;
        private MemberCodeDomSerializer _serializer; 
        private CodeDomLocalizationProvider.LanguageExtenders _extender; 
        private CultureInfo localizationLanguage = null;
 
        internal ResourcePropertyMemberCodeDomSerializer(MemberCodeDomSerializer serializer, CodeDomLocalizationProvider.LanguageExtenders extender, CodeDomLocalizationModel model) {

            Debug.Assert(extender != null, "Extender should have been created by now.");
 
            _serializer = serializer;
            _extender = extender; 
            _model = model; 
    }
 
        /// 
        ///    This method actually performs the serialization.  When the member is serialized
        ///    the necessary statements will be added to the statements collection.
        ///  
        public override void Serialize(IDesignerSerializationManager manager, object value, MemberDescriptor descriptor, CodeStatementCollection statements) {
 
            // We push the localization model to indicate that our serializer is in control.  Our 
            // serialization provider looks for this and decides what type of resource serializer
            // to give us. 
            manager.Context.Push(_model);

            try {
                _serializer.Serialize(manager, value, descriptor, statements); 
            }
            finally { 
                manager.Context.Pop(); 
            }
        } 

        private CultureInfo GetLocalizationLanguage(IDesignerSerializationManager manager) {
            if (localizationLanguage == null) {
                // Check to see if our base component's localizable prop is true 
                RootContext rootCxt = manager.Context[typeof(RootContext)] as RootContext;
                if (rootCxt != null) { 
                    object comp = rootCxt.Value; 
                    PropertyDescriptor prop = TypeDescriptor.GetProperties(comp)["LoadLanguage"];
                    if (prop != null && prop.PropertyType == typeof(CultureInfo)) { 
                        localizationLanguage = (CultureInfo)prop.GetValue(comp);
                    }
                }
            } 
            return localizationLanguage;
        } 
 
        private void OnSerializationComplete(object sender, EventArgs e) {
            // we do the cleanup here and clear out the cache of the localizedlanguage 
            localizationLanguage = null;

            //unhook the event
            IDesignerSerializationManager manager = sender as IDesignerSerializationManager; 
            Debug.Assert(manager != null, "manager should not be null!");
            if(manager != null) { 
                manager.SerializationComplete -= new EventHandler(OnSerializationComplete); 
            }
        } 

        /// 
        ///    This method returns true if the given member descriptor should be serialized,
        ///    or false if there is no need to serialize the member. 
        /// 
        public override bool ShouldSerialize(IDesignerSerializationManager manager, object value, MemberDescriptor descriptor) { 
            bool shouldSerialize = _serializer.ShouldSerialize(manager, value, descriptor); 

            if (!shouldSerialize && !descriptor.Attributes.Contains(DesignOnlyAttribute.Yes)) { 
                switch (_model) {
                    case CodeDomLocalizationModel.PropertyReflection :
                        if(!shouldSerialize) {
                            // hook up the event the first time to clear out our cache at the end of the serialization 
                            if(localizationLanguage == null) {
                                manager.SerializationComplete += new EventHandler(OnSerializationComplete); 
                            } 
                            if(GetLocalizationLanguage(manager) != CultureInfo.InvariantCulture) {
                                shouldSerialize = true; 
                            }
                        }
                        break;
 
                    case CodeDomLocalizationModel.PropertyAssignment :
                        // If this property contains its default value, we still want to serialize it if we are in 
                        // localization mode if we are writing to the default culture, but only if the object 
                        // is not inherited.
                        InheritanceAttribute inheritance = (InheritanceAttribute)manager.Context[typeof(InheritanceAttribute)]; 

                        if (inheritance == null) {
                            inheritance = (InheritanceAttribute)TypeDescriptor.GetAttributes(value)[typeof(InheritanceAttribute)];
                            if (inheritance == null) { 
                                inheritance = InheritanceAttribute.NotInherited;
                            } 
                        } 

                        if (inheritance.InheritanceLevel != InheritanceLevel.InheritedReadOnly) { 
                            shouldSerialize = true;
                        }

                        break; 

                    default : 
                        break; 
                }
            } 

            return shouldSerialize;
        }
	} 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

Link Menu

Network programming in C#, Network Programming in VB.NET, Network Programming in .NET
This book is available now!
Buy at Amazon US or
Buy at Amazon UK