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 "Model_Objects.h"
12 #include <ModelAPI_Feature.h>
13 #include <ModelAPI_Session.h>
15 #include <TDataStd_Comment.hxx>
16 #include <TDataStd_AsciiString.hxx>
17 #include <TDF_Tool.hxx>
21 void Model_AttributeReference::setValue(ObjectPtr theObject)
25 ObjectPtr aValue = value();
26 if (!myIsInitialized || aValue != theObject) {
27 REMOVE_BACK_REF(aValue);
29 std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(
31 TDF_Label anObjLab = aData->label().Father(); // object label
33 if (owner()->document() == theObject->document()) { // same document, use reference attribute
35 std::shared_ptr<Model_Document> aDoc =
36 std::dynamic_pointer_cast<Model_Document>(owner()->document());
37 myRef->Set(anObjLab); // references to the object label
38 // remove external link attributes (if any)
39 myRef->Label().ForgetAttribute(TDataStd_Comment::GetID());
40 myRef->Label().ForgetAttribute(TDataStd_AsciiString::GetID());
41 } else { // different document: store the document name (comment) and entry (string): external
42 // if these attributes exist, the link is external: keep reference to access the label
43 TDataStd_Comment::Set(myRef->Label(), theObject->document()->id().c_str());
44 TCollection_AsciiString anEntry;
45 TDF_Tool::Entry(anObjLab, anEntry);
46 TDataStd_AsciiString::Set(myRef->Label(), anEntry);
48 // do it before the transaction finish to make just created/removed objects know dependencies
49 // and reference from composite feature is removed automatically
50 ADD_BACK_REF(theObject);
52 owner()->data()->sendAttributeUpdated(this);
56 ObjectPtr Model_AttributeReference::value()
58 if (myIsInitialized) {
59 Handle(TDataStd_Comment) aDocID;
60 if (myRef->Label().FindAttribute(TDataStd_Comment::GetID(), aDocID)) { // external ref
62 ModelAPI_Session::get()->document(TCollection_AsciiString(aDocID->Get()).ToCString());
64 Handle(TDataStd_AsciiString) anEntry;
65 if (myRef->Label().FindAttribute(TDataStd_AsciiString::GetID(), anEntry)) {
66 std::shared_ptr<Model_Document> aDR = std::dynamic_pointer_cast<Model_Document>(aRefDoc);
68 TDF_Tool::Label(aDR->objects()->featuresLabel().Data(), anEntry->Get().ToCString(), aRefLab);
69 if (!aRefLab.IsNull()) {
70 return aDR->objects()->object(aRefLab);
74 } else { // internal ref
75 std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(
78 TDF_Label aRefLab = myRef->Get();
79 if (!aRefLab.IsNull()) { // it may happen with old document, issue #285
80 return aDoc->objects()->object(aRefLab);
89 Model_AttributeReference::Model_AttributeReference(TDF_Label& theLabel)
91 myIsInitialized = theLabel.FindAttribute(TDF_Reference::GetID(), myRef) == Standard_True;
92 if (!myIsInitialized) {
93 myRef = TDF_Reference::Set(theLabel, theLabel); // not initialized references to itself
96 std::shared_ptr<Model_Document> aDoc =
97 std::dynamic_pointer_cast<Model_Document>(owner()->document());
102 void Model_AttributeReference::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
104 if (owner() != theObject) {
105 ModelAPI_AttributeReference::setObject(theObject);
106 std::shared_ptr<Model_Document> aDoc =
107 std::dynamic_pointer_cast<Model_Document>(owner()->document());
111 Model_AttributeReference::~Model_AttributeReference()
113 std::shared_ptr<Model_Document> aDoc =
114 std::dynamic_pointer_cast<Model_Document>(owner()->document());
115 TDF_Label aLab = myRef->Get();