1 // Copyright (C) 2014-20xx CEA/DEN, EDF R&D
3 // File: ModelAPI_AttributeReference.cxx
5 // Author: Mikhail PONIKAROV
7 #include "Model_AttributeReference.h"
8 #include "Model_Application.h"
9 #include "Model_Events.h"
10 #include "Model_Data.h"
11 #include <ModelAPI_Feature.h>
12 #include <ModelAPI_Session.h>
14 #include <TDataStd_Comment.hxx>
15 #include <TDataStd_AsciiString.hxx>
16 #include <TDF_Tool.hxx>
20 void Model_AttributeReference::setValue(ObjectPtr theObject)
24 ObjectPtr aValue = value();
25 if (!myIsInitialized || aValue != theObject) {
26 REMOVE_BACK_REF(aValue);
28 std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(
30 TDF_Label anObjLab = aData->label().Father(); // object label
32 if (owner()->document() == theObject->document()) { // same document, use reference attribute
34 std::shared_ptr<Model_Document> aDoc =
35 std::dynamic_pointer_cast<Model_Document>(owner()->document());
36 myRef->Set(anObjLab); // references to the object label
37 // remove external link attributes (if any)
38 myRef->Label().ForgetAttribute(TDataStd_Comment::GetID());
39 myRef->Label().ForgetAttribute(TDataStd_AsciiString::GetID());
40 } else { // different document: store the document name (comment) and entry (string): external
41 // if these attributes exist, the link is external: keep reference to access the label
42 TDataStd_Comment::Set(myRef->Label(), theObject->document()->id().c_str());
43 TCollection_AsciiString anEntry;
44 TDF_Tool::Entry(anObjLab, anEntry);
45 TDataStd_AsciiString::Set(myRef->Label(), anEntry);
47 // do it before the transaction finish to make just created/removed objects know dependencies
48 // and reference from composite feature is removed automatically
49 ADD_BACK_REF(theObject);
51 owner()->data()->sendAttributeUpdated(this);
55 ObjectPtr Model_AttributeReference::value()
57 if (myIsInitialized) {
58 Handle(TDataStd_Comment) aDocID;
59 if (myRef->Label().FindAttribute(TDataStd_Comment::GetID(), aDocID)) { // external ref
61 ModelAPI_Session::get()->document(TCollection_AsciiString(aDocID->Get()).ToCString());
63 Handle(TDataStd_AsciiString) anEntry;
64 if (myRef->Label().FindAttribute(TDataStd_AsciiString::GetID(), anEntry)) {
65 std::shared_ptr<Model_Document> aDR = std::dynamic_pointer_cast<Model_Document>(aRefDoc);
67 TDF_Tool::Label(aDR->featuresLabel().Data(), anEntry->Get().ToCString(), aRefLab);
68 if (!aRefLab.IsNull()) {
69 return aDR->object(aRefLab);
73 } else { // internal ref
74 std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(
77 TDF_Label aRefLab = myRef->Get();
78 if (!aRefLab.IsNull()) { // it may happen with old document, issue #285
79 return aDoc->object(aRefLab);
88 Model_AttributeReference::Model_AttributeReference(TDF_Label& theLabel)
90 myIsInitialized = theLabel.FindAttribute(TDF_Reference::GetID(), myRef) == Standard_True;
91 if (!myIsInitialized) {
92 myRef = TDF_Reference::Set(theLabel, theLabel); // not initialized references to itself
95 std::shared_ptr<Model_Document> aDoc =
96 std::dynamic_pointer_cast<Model_Document>(owner()->document());
101 void Model_AttributeReference::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
103 if (owner() != theObject) {
104 ModelAPI_AttributeReference::setObject(theObject);
105 std::shared_ptr<Model_Document> aDoc =
106 std::dynamic_pointer_cast<Model_Document>(owner()->document());
110 Model_AttributeReference::~Model_AttributeReference()
112 std::shared_ptr<Model_Document> aDoc =
113 std::dynamic_pointer_cast<Model_Document>(owner()->document());
114 TDF_Label aLab = myRef->Get();