public int NumberOfVisibleFields(bool considerAlwaysShow = true)
{
int size = 0;
MetaMetadataOneLevelNestingEnumerator fullEnumerator = FullNonRecursiveMetaMetadataIterator();
// iterate over all fields in this & then in each mixin of this
while (fullEnumerator.MoveNext())
{
MetaMetadataField metaMetadataField = fullEnumerator.Current;
MetaMetadataField metaMetadata = fullEnumerator.CurrentObject(); // stays the same for until we
// iterate over all mfd's for
// it
Metadata currentMetadata = fullEnumerator.CurrentMetadata;
// When the iterator enters the metadata in the mixins "this" in getValueString has to be
// the corresponding metadata in mixin.
bool hasVisibleNonNullField = false;
MetadataFieldDescriptor mfd = metaMetadataField.MetadataFieldDescriptor;
if (metaMetadata.IsChildFieldDisplayed(metaMetadataField.Name))
{
if (mfd.IsScalar && !mfd.IsCollection)
{
hasVisibleNonNullField = MetadataString.IsNotNullAndEmptyValue(mfd.GetValueString(currentMetadata));
}
else if (mfd.IsComposite)
{
Metadata nestedMetadata = (Metadata)mfd.GetNestedMetadata(currentMetadata);
hasVisibleNonNullField = (nestedMetadata != null) ? (nestedMetadata.NumberOfVisibleFields() > 0) : false;
}
else if (mfd.IsCollection)
{
ICollection collection = mfd.GetCollection(currentMetadata);
hasVisibleNonNullField = (collection != null) ? (collection.Count > 0) : false;
}
}
// "null" happens with mixins fieldAccessor b'coz getValueString() returns "null".
// TODO use MetaMetadataField.numNonDisplayedFields()
bool isVisibleField = !metaMetadataField.Hide &&
((considerAlwaysShow && metaMetadataField.AlwaysShow) || hasVisibleNonNullField);
if (isVisibleField)
{
size++;
}
}
return(size);
}
public void Push(MetaMetadataField mmField)
{
Debug.WriteLine("pushing " + mmField);
mmStack.Push(mmField);
// put mmd scope
MultiAncestorScope<Object> scope = new MultiAncestorScope<Object>();
if (scopeStack.Count > 0)
scope.AddAncestor(scopeStack.Peek());
scopeStack.Push(scope);
// put generic type var scope
MmdGenericTypeVarScope existingMmdGenericTypeVarScope = (MmdGenericTypeVarScope) scope.Get(GENERIC_TYPE_VAR_SCOPE);
MmdGenericTypeVarScope currentMmdGenericTypeVarScope = mmField.GenericTypeVars;
if (currentMmdGenericTypeVarScope != null && existingMmdGenericTypeVarScope != null)
{
currentMmdGenericTypeVarScope.InheritFrom(existingMmdGenericTypeVarScope, this);
}
scope.AddIfValueNotNull(GENERIC_TYPE_VAR_SCOPE, mmField.GenericTypeVars);
}
public void Pop(MetaMetadataField mmField)
{
MetaMetadataField field = mmStack.Pop();
Debug.WriteLine("popping " + field);
scopeStack.Pop();
if (mmField != field)
throw new MetaMetadataException("mmField != field");
}
public bool IsUsingGenerics(MetaMetadataField field)
{
if (field.GenericTypeVars != null && field.GenericTypeVars.Count > 0)
return true;
MmdGenericTypeVarScope gtvScope = (MmdGenericTypeVarScope) scopeStack.Peek().Get(
GENERIC_TYPE_VAR_SCOPE);
if (gtvScope == null)
return false;
if (((field.GetMmdType() != null) && gtvScope.ContainsKey(field.GetMmdType())) || field.GetMmdType() == null
&& ((field.Name != null) && gtvScope.ContainsKey(field.Name))
|| ((field.GetMmdExtendsAttribute() != null) && gtvScope.ContainsKey(field.GetMmdExtendsAttribute())))
return true;
return false;
}
public MetaMetadataOneLevelNestingEnumerator MetaMetadataIterator(MetaMetadataField metaMetadataField = null)
{
MetaMetadataField firstMetaMetadataField = metaMetadataField ?? this.MetaMetadata;
return new MetaMetadataOneLevelNestingEnumerator(firstMetaMetadataField, this);
}
public MetaMetadataOneLevelNestingEnumerator FullNonRecursiveMetaMetadataIterator(MetaMetadataField metaMetadataField = null)
{
MetaMetadataField firstMetaMetadataField = metaMetadataField ?? MetaMetadata;
return new MetaMetadataOneLevelNestingEnumerator(firstMetaMetadataField, this);
}
public MetaMetadataOneLevelNestingEnumerator FullNonRecursiveMetaMetadataIterator(MetaMetadataField metaMetadataField = null)
{
MetaMetadataField firstMetaMetadataField = metaMetadataField ?? MetaMetadata;
return(new MetaMetadataOneLevelNestingEnumerator(firstMetaMetadataField, this));
}
public MetaMetadataOneLevelNestingEnumerator MetaMetadataIterator(MetaMetadataField metaMetadataField = null)
{
MetaMetadataField firstMetaMetadataField = metaMetadataField ?? this.MetaMetadata;
return(new MetaMetadataOneLevelNestingEnumerator(firstMetaMetadataField, this));
}