internal static void EncodeToStream(ExtendedProperty attribute, Stream stream)
{
VarEnum interopTypeInfo;
object data = attribute.Value;
// NTRAID#T2-23063-2003/12/10-[....]: CODEQUALITY: Find better way to discover which properties should be persistable
if (attribute.Id == KnownIds.DrawingFlags)
{
interopTypeInfo = VarEnum.VT_I4;
}
else if (attribute.Id == KnownIds.StylusTip)
{
interopTypeInfo = VarEnum.VT_I4;
}
else
{
// Find the type of the object if it's embedded in the stream
if (UsesEmbeddedTypeInformation(attribute.Id))
{
interopTypeInfo = SerializationHelper.ConvertToVarEnum(attribute.Value.GetType(), true);
}
else // Otherwise treat this as byte array
{
interopTypeInfo = (VarEnum.VT_ARRAY | VarEnum.VT_UI1);
}
}
EncodeAttribute(attribute.Id, data, interopTypeInfo, stream);
}
/// <summary>
/// Remove
/// </summary>
/// <param name="id">id</param>
internal void Remove(Guid id)
{
if (!Contains(id))
{
throw new ArgumentException(SR.Get(SRID.EPGuidNotFound), "id");
}
ExtendedProperty propertyToRemove = GetExtendedPropertyById(id);
System.Diagnostics.Debug.Assert(propertyToRemove != null);
_extendedProperties.Remove(propertyToRemove);
//
// this value is bogus now
//
_optimisticIndex = -1;
// fire notification event
if (this.Changed != null)
{
ExtendedPropertiesChangedEventArgs eventArgs
= new ExtendedPropertiesChangedEventArgs(propertyToRemove, null);
this.Changed(this, eventArgs);
}
}
/// <summary>Constructor</summary>
internal ExtendedPropertiesChangedEventArgs(ExtendedProperty oldProperty,
ExtendedProperty newProperty)
{
if (oldProperty == null && newProperty == null)
{
throw new ArgumentNullException("oldProperty");
}
_oldProperty = oldProperty;
_newProperty = newProperty;
}
/// <summary>
/// Add
/// </summary>
/// <param name="id">Id</param>
/// <param name="value">value</param>
internal void Add(Guid id, object value)
{
if (this.Contains(id))
{
throw new ArgumentException(SR.Get(SRID.EPExists), "id");
}
ExtendedProperty extendedProperty = new ExtendedProperty(id, value);
//this will raise change events
this.Add(extendedProperty);
}
/// <summary>
/// private Add, we need to consider making this public in order to implement the generic ICollection
/// </summary>
private void Add(ExtendedProperty extendedProperty)
{
System.Diagnostics.Debug.Assert(!this.Contains(extendedProperty.Id), "ExtendedProperty already belongs to the collection");
_extendedProperties.Add(extendedProperty);
// fire notification event
if (this.Changed != null)
{
ExtendedPropertiesChangedEventArgs eventArgs
= new ExtendedPropertiesChangedEventArgs(null, extendedProperty);
this.Changed(this, eventArgs);
}
}
/// <summary>
/// Generic accessor for the ExtendedPropertyCollection.
/// </summary>
/// <param name="attributeId">Attribue Id to find</param>
/// <returns>Value for attribute specified by Id</returns>
/// <exception cref="System.ArgumentException">Specified identifier was not found</exception>
/// <remarks>
/// Note that you can access extended properties via this indexer.
/// </remarks>
internal object this[Guid attributeId]
{
get
{
ExtendedProperty ep = GetExtendedPropertyById(attributeId);
if (ep == null)
{
throw new ArgumentException(SR.Get(SRID.EPNotFound), "attributeId");
}
return(ep.Value);
}
set
{
if (value == null)
{
throw new ArgumentNullException("value");
}
for (int i = 0; i < _extendedProperties.Count; i++)
{
ExtendedProperty currentProperty = _extendedProperties[i];
if (currentProperty.Id == attributeId)
{
object oldValue = currentProperty.Value;
//this will raise events
currentProperty.Value = value;
//raise change if anyone is listening
if (this.Changed != null)
{
ExtendedPropertiesChangedEventArgs eventArgs
= new ExtendedPropertiesChangedEventArgs(
new ExtendedProperty(currentProperty.Id, oldValue), //old prop
currentProperty); //new prop
this.Changed(this, eventArgs);
}
return;
}
}
//
// we didn't find the Id in the collection, we need to add it.
// this will raise change notifications
//
ExtendedProperty attributeToAdd = new ExtendedProperty(attributeId, value);
this.Add(attributeToAdd);
}
}
/// <summary>Determine if two ExtendedProperty objects are equal</summary>
public override bool Equals(object obj)
{
if (obj == null || obj.GetType() != GetType())
{
return(false);
}
ExtendedProperty that = (ExtendedProperty)obj;
if (that.Id == this.Id)
{
Type type1 = this.Value.GetType();
Type type2 = that.Value.GetType();
if (type1.IsArray && type2.IsArray)
{
Type elementType1 = type1.GetElementType();
Type elementType2 = type2.GetElementType();
if (elementType1 == elementType2 &&
elementType1.IsValueType &&
type1.GetArrayRank() == 1 &&
elementType2.IsValueType &&
type2.GetArrayRank() == 1)
{
Array array1 = (Array)this.Value;
Array array2 = (Array)that.Value;
if (array1.Length == array2.Length)
{
for (int i = 0; i < array1.Length; i++)
{
if (!array1.GetValue(i).Equals(array2.GetValue(i)))
{
return(false);
}
}
return(true);
}
}
}
else
{
return(that.Value.Equals(this.Value));
}
}
return(false);
}
/// <summary>
/// Whenever the base class fires the generic ExtendedPropertiesChanged
/// event, we need to fire the DrawingAttributesChanged event also.
/// </summary>
/// <param name="sender">Should be 'this' object</param>
/// <param name="args">The custom attributes that changed</param>
private void ExtendedPropertiesChanged_EventForwarder(object sender, ExtendedPropertiesChangedEventArgs args)
{
System.Diagnostics.Debug.Assert(sender != null);
System.Diagnostics.Debug.Assert(args != null);
//see if the EP that changed is a drawingattribute
if (args.NewProperty == null)
{
//a property was removed, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.OldProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
ExtendedProperty newProperty =
new ExtendedProperty( args.OldProperty.Id,
defaultValueIfDrawingAttribute);
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs( args.OldProperty.Id,
newProperty.Value, //the property
args.OldProperty.Value);//previous value
this.OnAttributeChanged(dargs);
}
else
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs( args.OldProperty.Id,
null, //the property
args.OldProperty.Value);//previous value
this.OnPropertyDataChanged(dargs);
}
}
else if (args.OldProperty == null)
{
//a property was added, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.NewProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
if (!defaultValueIfDrawingAttribute.Equals(args.NewProperty.Value))
{
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs( args.NewProperty.Id,
args.NewProperty.Value, //the property
defaultValueIfDrawingAttribute); //previous value
this.OnAttributeChanged(dargs);
}
}
else
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.NewProperty.Id,
args.NewProperty.Value, //the property
null); //previous value
this.OnPropertyDataChanged(dargs);
}
}
else
{
//something was modified, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.NewProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
//
// we only raise DA changed when the value actually changes
//
if (!args.NewProperty.Value.Equals(args.OldProperty.Value))
{
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs( args.NewProperty.Id,
args.NewProperty.Value, //the da
args.OldProperty.Value);//old value
this.OnAttributeChanged(dargs);
}
}
else
{
if (!args.NewProperty.Value.Equals(args.OldProperty.Value))
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs( args.NewProperty.Id,
args.NewProperty.Value,
args.OldProperty.Value);//old value
this.OnPropertyDataChanged(dargs);
}
}
}
}
/// <summary>Constructor</summary>
internal ExtendedPropertiesChangedEventArgs(ExtendedProperty oldProperty,
ExtendedProperty newProperty)
{
if ( oldProperty == null && newProperty == null )
{
throw new ArgumentNullException("oldProperty");
}
_oldProperty = oldProperty;
_newProperty = newProperty;
}
/// <summary>
/// private Add, we need to consider making this public in order to implement the generic ICollection
/// </summary>
private void Add(ExtendedProperty extendedProperty)
{
System.Diagnostics.Debug.Assert(!this.Contains(extendedProperty.Id), "ExtendedProperty already belongs to the collection");
_extendedProperties.Add(extendedProperty);
// fire notification event
if (this.Changed != null)
{
ExtendedPropertiesChangedEventArgs eventArgs
= new ExtendedPropertiesChangedEventArgs(null, extendedProperty);
this.Changed(this, eventArgs);
}
}
/// <summary>
/// Generic accessor for the ExtendedPropertyCollection.
/// </summary>
/// <param name="attributeId">Attribue Id to find</param>
/// <returns>Value for attribute specified by Id</returns>
/// <exception cref="System.ArgumentException">Specified identifier was not found</exception>
/// <remarks>
/// Note that you can access extended properties via this indexer.
/// </remarks>
internal object this[Guid attributeId]
{
get
{
ExtendedProperty ep = GetExtendedPropertyById(attributeId);
if (ep == null)
{
throw new ArgumentException(SR.Get(SRID.EPNotFound), "attributeId");
}
return ep.Value;
}
set
{
if (value == null)
{
throw new ArgumentNullException("value");
}
for (int i = 0; i < _extendedProperties.Count; i++)
{
ExtendedProperty currentProperty = _extendedProperties[i];
if (currentProperty.Id == attributeId)
{
object oldValue = currentProperty.Value;
//this will raise events
currentProperty.Value = value;
//raise change if anyone is listening
if (this.Changed != null)
{
ExtendedPropertiesChangedEventArgs eventArgs
= new ExtendedPropertiesChangedEventArgs(
new ExtendedProperty(currentProperty.Id, oldValue), //old prop
currentProperty); //new prop
this.Changed(this, eventArgs);
}
return;
}
}
//
// we didn't find the Id in the collection, we need to add it.
// this will raise change notifications
//
ExtendedProperty attributeToAdd = new ExtendedProperty(attributeId, value);
this.Add(attributeToAdd);
}
}
/// <summary>
/// Add
/// </summary>
/// <param name="id">Id</param>
/// <param name="value">value</param>
internal void Add(Guid id, object value)
{
if (this.Contains(id))
{
throw new ArgumentException(SR.Get(SRID.EPExists), "id");
}
ExtendedProperty extendedProperty = new ExtendedProperty(id, value);
//this will raise change events
this.Add(extendedProperty);
}
/// <summary>
/// Whenever the base class fires the generic ExtendedPropertiesChanged
/// event, we need to fire the DrawingAttributesChanged event also.
/// </summary>
/// <param name="sender">Should be 'this' object</param>
/// <param name="args">The custom attributes that changed</param>
private void ExtendedPropertiesChanged_EventForwarder(object sender, ExtendedPropertiesChangedEventArgs args)
{
System.Diagnostics.Debug.Assert(sender != null);
System.Diagnostics.Debug.Assert(args != null);
//see if the EP that changed is a drawingattribute
if (args.NewProperty == null)
{
//a property was removed, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.OldProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
ExtendedProperty newProperty =
new ExtendedProperty(args.OldProperty.Id,
defaultValueIfDrawingAttribute);
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.OldProperty.Id,
newProperty.Value, //the property
args.OldProperty.Value); //previous value
this.OnAttributeChanged(dargs);
}
else
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.OldProperty.Id,
null, //the property
args.OldProperty.Value); //previous value
this.OnPropertyDataChanged(dargs);
}
}
else if (args.OldProperty == null)
{
//a property was added, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.NewProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
if (!defaultValueIfDrawingAttribute.Equals(args.NewProperty.Value))
{
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.NewProperty.Id,
args.NewProperty.Value, //the property
defaultValueIfDrawingAttribute); //previous value
this.OnAttributeChanged(dargs);
}
}
else
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.NewProperty.Id,
args.NewProperty.Value, //the property
null); //previous value
this.OnPropertyDataChanged(dargs);
}
}
else
{
//something was modified, see if it is a drawing attribute property
object defaultValueIfDrawingAttribute
= DrawingAttributes.GetDefaultDrawingAttributeValue(args.NewProperty.Id);
if (defaultValueIfDrawingAttribute != null)
{
//
// we only raise DA changed when the value actually changes
//
if (!args.NewProperty.Value.Equals(args.OldProperty.Value))
{
//this is a da guid
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.NewProperty.Id,
args.NewProperty.Value, //the da
args.OldProperty.Value); //old value
this.OnAttributeChanged(dargs);
}
}
else
{
if (!args.NewProperty.Value.Equals(args.OldProperty.Value))
{
PropertyDataChangedEventArgs dargs =
new PropertyDataChangedEventArgs(args.NewProperty.Id,
args.NewProperty.Value,
args.OldProperty.Value); //old value
this.OnPropertyDataChanged(dargs);
}
}
}
}
