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)
23 // now allow to deselect in this attribute: extrusion from/to
26 ObjectPtr aValue = value();
27 if (!myIsInitialized || aValue != theObject) {
28 myIsInitialized = true;
29 REMOVE_BACK_REF(aValue);
32 if (theObject.get() && theObject->data()->isValid()) {
33 std::shared_ptr<Model_Data> aData = std::dynamic_pointer_cast<Model_Data>(
35 anObjLab = aData->label().Father(); // object label
37 // same document, use reference attribute
38 if (anObjLab.IsNull() || owner()->document() == theObject->document()) {
40 if (anObjLab.IsNull()) {
41 myRef->Set(myRef->Label());
43 myRef->Set(anObjLab); // references to the object label
45 // remove external link attributes (if any)
46 myRef->Label().ForgetAttribute(TDataStd_Comment::GetID());
47 myRef->Label().ForgetAttribute(TDataStd_AsciiString::GetID());
48 } else { // different document: store the document name (comment) and entry (string): external
49 // if these attributes exist, the link is external: keep reference to access the label
50 std::ostringstream anIdString; // string with document Id
51 anIdString<<theObject->document()->id();
52 TDataStd_Comment::Set(myRef->Label(), anIdString.str().c_str());
53 TCollection_AsciiString anEntry;
54 TDF_Tool::Entry(anObjLab, anEntry);
55 TDataStd_AsciiString::Set(myRef->Label(), anEntry);
57 // do it before the transaction finish to make just created/removed objects know dependencies
58 // and reference from composite feature is removed automatically
59 ADD_BACK_REF(theObject);
61 owner()->data()->sendAttributeUpdated(this);
65 ObjectPtr Model_AttributeReference::value()
67 if (isInitialized()) {
68 Handle(TDataStd_Comment) aDocID;
69 if (myRef->Label().FindAttribute(TDataStd_Comment::GetID(), aDocID)) { // external ref
70 int anID = atoi(TCollection_AsciiString(aDocID->Get()).ToCString());
71 DocumentPtr aRefDoc = Model_Application::getApplication()->document(anID);
73 Handle(TDataStd_AsciiString) anEntry;
74 if (myRef->Label().FindAttribute(TDataStd_AsciiString::GetID(), anEntry)) {
75 std::shared_ptr<Model_Document> aDR = std::dynamic_pointer_cast<Model_Document>(aRefDoc);
77 TDF_Tool::Label(aDR->objects()->featuresLabel().Data(), anEntry->Get().ToCString(), aRefLab);
78 if (!aRefLab.IsNull()) {
79 return aDR->objects()->object(aRefLab);
83 } else { // internal ref
84 std::shared_ptr<Model_Document> aDoc = std::dynamic_pointer_cast<Model_Document>(
87 TDF_Label aRefLab = myRef->Get();
88 if (!aRefLab.IsNull()) { // it may happen with old document, issue #285
89 return aDoc->objects()->object(aRefLab);
98 bool Model_AttributeReference::isInitialized()
100 if (myRef->Label() == myRef->Get() && !myRef->Label().IsAttribute(TDataStd_Comment::GetID())) {
101 // empty reference is not initialized
104 return ModelAPI_AttributeReference::isInitialized();
107 Model_AttributeReference::Model_AttributeReference(TDF_Label& theLabel)
109 myIsInitialized = theLabel.FindAttribute(TDF_Reference::GetID(), myRef) == Standard_True;
110 if (!myIsInitialized) {
111 myRef = TDF_Reference::Set(theLabel, theLabel); // not initialized references to itself
114 std::shared_ptr<Model_Document> aDoc =
115 std::dynamic_pointer_cast<Model_Document>(owner()->document());
120 void Model_AttributeReference::setObject(const std::shared_ptr<ModelAPI_Object>& theObject)
122 if (owner() != theObject) {
123 ModelAPI_AttributeReference::setObject(theObject);
124 std::shared_ptr<Model_Document> aDoc =
125 std::dynamic_pointer_cast<Model_Document>(owner()->document());
129 Model_AttributeReference::~Model_AttributeReference()