public readonly IGraph _graph; // for ToString only
public LGSPUndoAttributeChanged(IGraphElement elem, AttributeType attrType,
AttributeChangeType changeType, Object newValue, Object keyValue,
LGSPGraphProcessingEnvironment procEnv)
{
_elem = elem;
_attrType = attrType;
if (procEnv.graph is LGSPNamedGraph)
{
_name = ((LGSPNamedGraph)procEnv.graph).GetElementName(_elem);
}
else
{
_name = "?";
}
_graph = procEnv.graph;
if (_attrType.Kind == AttributeKind.SetAttr)
{
if (changeType == AttributeChangeType.PutElement)
{
IDictionary dict = (IDictionary)_elem.GetAttribute(_attrType.Name);
if (dict.Contains(newValue))
{
_undoOperation = UndoOperation.None;
}
else
{
_undoOperation = UndoOperation.RemoveElement;
_value = newValue;
}
}
else if (changeType == AttributeChangeType.RemoveElement)
{
IDictionary dict = (IDictionary)_elem.GetAttribute(_attrType.Name);
if (dict.Contains(newValue))
{
_undoOperation = UndoOperation.PutElement;
_value = newValue;
}
else
{
_undoOperation = UndoOperation.None;
}
}
else // Assign
{
Type keyType;
Type valueType;
IDictionary dict = ContainerHelper.GetDictionaryTypes(
_elem.GetAttribute(_attrType.Name), out keyType, out valueType);
IDictionary clonedDict = ContainerHelper.NewDictionary(keyType, valueType, dict);
_undoOperation = UndoOperation.Assign;
_value = clonedDict;
}
}
else if (_attrType.Kind == AttributeKind.ArrayAttr)
{
if (changeType == AttributeChangeType.PutElement)
{
IList array = (IList)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.RemoveElement;
_keyOfValue = keyValue;
}
else if (changeType == AttributeChangeType.RemoveElement)
{
IList array = (IList)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.PutElement;
if (keyValue == null)
{
_value = array[array.Count - 1];
}
else
{
_value = array[(int)keyValue];
_keyOfValue = keyValue;
}
}
else if (changeType == AttributeChangeType.AssignElement)
{
IList array = (IList)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.AssignElement;
_value = array[(int)keyValue];
_keyOfValue = keyValue;
}
else // Assign
{
Type valueType;
IList array = ContainerHelper.GetListType(
_elem.GetAttribute(_attrType.Name), out valueType);
IList clonedArray = ContainerHelper.NewList(valueType, array);
_undoOperation = UndoOperation.Assign;
_value = clonedArray;
}
}
else if (_attrType.Kind == AttributeKind.DequeAttr)
{
if (changeType == AttributeChangeType.PutElement)
{
IDeque deque = (IDeque)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.RemoveElement;
_keyOfValue = keyValue;
}
else if (changeType == AttributeChangeType.RemoveElement)
{
IDeque deque = (IDeque)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.PutElement;
if (keyValue == null)
{
_value = deque.Front;
}
else
{
_value = deque[(int)keyValue];
_keyOfValue = keyValue;
}
}
else if (changeType == AttributeChangeType.AssignElement)
{
IDeque deque = (IDeque)_elem.GetAttribute(_attrType.Name);
_undoOperation = UndoOperation.AssignElement;
_value = deque[(int)keyValue];
_keyOfValue = keyValue;
}
else // Assign
{
Type valueType;
IDeque deque = ContainerHelper.GetDequeType(
_elem.GetAttribute(_attrType.Name), out valueType);
IDeque clonedDeque = ContainerHelper.NewDeque(valueType, deque);
_undoOperation = UndoOperation.Assign;
_value = clonedDeque;
}
}
else if (_attrType.Kind == AttributeKind.MapAttr)
{
if (changeType == AttributeChangeType.PutElement)
{
IDictionary dict = (IDictionary)_elem.GetAttribute(_attrType.Name);
if (dict.Contains(keyValue))
{
if (dict[keyValue] == newValue)
{
_undoOperation = UndoOperation.None;
}
else
{
_undoOperation = UndoOperation.PutElement;
_value = dict[keyValue];
_keyOfValue = keyValue;
}
}
else
{
_undoOperation = UndoOperation.RemoveElement;
_value = newValue;
_keyOfValue = keyValue;
}
}
else if (changeType == AttributeChangeType.RemoveElement)
{
IDictionary dict = (IDictionary)_elem.GetAttribute(_attrType.Name);
if (dict.Contains(keyValue))
{
_undoOperation = UndoOperation.PutElement;
_value = dict[keyValue];
_keyOfValue = keyValue;
}
else
{
_undoOperation = UndoOperation.None;
}
}
else if (changeType == AttributeChangeType.AssignElement)
{
IDictionary dict = (IDictionary)_elem.GetAttribute(_attrType.Name);
if (dict[keyValue] == newValue)
{
_undoOperation = UndoOperation.None;
}
else
{
_undoOperation = UndoOperation.AssignElement;
_value = dict[keyValue];
_keyOfValue = keyValue;
}
}
else // Assign
{
Type keyType, valueType;
IDictionary dict = ContainerHelper.GetDictionaryTypes(
_elem.GetAttribute(_attrType.Name), out keyType, out valueType);
IDictionary clonedDict = ContainerHelper.NewDictionary(keyType, valueType, dict);
_undoOperation = UndoOperation.Assign;
_value = clonedDict;
}
}
else // Primitve Type Assign
{
_undoOperation = UndoOperation.Assign;
_value = _elem.GetAttribute(_attrType.Name);
}
}
public string GetConstant(object constant)
{
if (constant is bool)
{
return((bool)constant == true ? "true" : "false");
}
else if (constant is Enum)
{
Enum enumConst = (Enum)constant;
return(enumConst.GetType().ToString() + "." + enumConst.ToString());
}
else if (constant is IDictionary)
{
Type keyType;
Type valueType;
ContainerHelper.GetDictionaryTypes(constant, out keyType, out valueType);
String srcType = "typeof(" + TypesHelper.PrefixedTypeFromType(keyType) + ")";
String dstType = "typeof(" + TypesHelper.PrefixedTypeFromType(valueType) + ")";
return("GRGEN_LIBGR.ContainerHelper.NewDictionary(" + srcType + "," + dstType + ")");
}
else if (constant is IList)
{
Type valueType;
ContainerHelper.GetListType(constant, out valueType);
String dequeValueType = "typeof(" + TypesHelper.PrefixedTypeFromType(valueType) + ")";
return("GRGEN_LIBGR.ContainerHelper.NewList(" + dequeValueType + ")");
}
else if (constant is IDeque)
{
Type valueType;
ContainerHelper.GetDequeType(constant, out valueType);
String dequeValueType = "typeof(" + TypesHelper.PrefixedTypeFromType(valueType) + ")";
return("GRGEN_LIBGR.ContainerHelper.NewDeque(" + dequeValueType + ")");
}
else if (constant is string)
{
return("\"" + constant.ToString() + "\"");
}
else if (constant is float)
{
return(((float)constant).ToString(System.Globalization.CultureInfo.InvariantCulture) + "f");
}
else if (constant is double)
{
return("((double)" + ((double)constant).ToString(System.Globalization.CultureInfo.InvariantCulture) + ")");
}
else if (constant is sbyte)
{
return("((sbyte)" + constant.ToString() + ")");
}
else if (constant is short)
{
return("((short)" + constant.ToString() + ")");
}
else if (constant is long)
{
return("((long)" + constant.ToString() + ")");
}
else if (constant is NodeType)
{
return("(GRGEN_LIBGR.TypesHelper.GetNodeType(\"" + constant + "\", graph.Model))");
}
else if (constant is EdgeType)
{
return("(GRGEN_LIBGR.TypesHelper.GetEdgeType(\"" + constant + "\", graph.Model))");
}
else
{
if (constant == null)
{
return("null");
}
else
{
return(constant.ToString());
}
}
}