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// File: TDataStd_DeltaOnModificationOfByteArray.cxx
// Created: Wed Dec 5 16:18:51 2007
// Author: Sergey ZARITCHNY
// <sergey.zaritchny@opencascade.com>
//Copyright: Open CasCade SA 2007
#include <TDataStd_DeltaOnModificationOfByteArray.ixx>
#include <TDataStd_ByteArray.hxx>
#include <TDF_DeltaOnModification.hxx>
#include <TDF_Label.hxx>
#include <TColStd_HArray1OfInteger.hxx>
#include <TColStd_HArray1OfByte.hxx>
#include <TColStd_ListOfInteger.hxx>
#include <TColStd_ListIteratorOfListOfInteger.hxx>
#include <TDF_AttributeIterator.hxx>
#ifdef DEB
#define MAXUP 1000
#endif
//=======================================================================
//function : TDataStd_DeltaOnModificationOfByteArray
//purpose :
//=======================================================================
TDataStd_DeltaOnModificationOfByteArray::TDataStd_DeltaOnModificationOfByteArray(const Handle(TDataStd_ByteArray)& OldAtt)
: TDF_DeltaOnModification(OldAtt)
{
Handle(TDataStd_ByteArray) CurrAtt;
if (Label().FindAttribute(OldAtt->ID(),CurrAtt)) {
{
Handle(TColStd_HArray1OfByte) Arr1, Arr2;
Arr1 = OldAtt->InternalArray();
Arr2 = CurrAtt->InternalArray();
#ifdef DEB_DELTA
if(Arr1.IsNull())
cout <<"DeltaOnModificationOfByteArray:: Old ByteArray is Null" <<endl;
if(Arr2.IsNull())
cout <<"DeltaOnModificationOfByteArray:: Current ByteArray is Null" <<endl;
#endif
if(Arr1.IsNull() || Arr2.IsNull()) return;
if(Arr1 != Arr2) {
myUp1 = Arr1->Upper();
myUp2 = Arr2->Upper();
Standard_Integer i, N=0, aCase=0;
if(myUp1 == myUp2)
{aCase = 1; N = myUp1;}
else if(myUp1 < myUp2)
{aCase = 2; N = myUp1;}
else
{aCase = 3; N = myUp2;}//Up1 > Up2
TColStd_ListOfInteger aList;
for(i=Arr1->Lower();i<= N; i++)
if(Arr1->Value(i) != Arr2->Value(i))
aList.Append(i);
if(aCase == 3) {
for(i = N+1;i <= myUp1; i++)
aList.Append(i);
}
if(aList.Extent()) {
myIndxes = new TColStd_HArray1OfInteger(1,aList.Extent());
myValues = new TColStd_HArray1OfByte(1,aList.Extent());
TColStd_ListIteratorOfListOfInteger anIt(aList);
for(i =1;anIt.More();anIt.Next(),i++) {
myIndxes->SetValue(i, anIt.Value());
myValues->SetValue(i, Arr1->Value(anIt.Value()));
}
}
}
}
OldAtt->RemoveArray();
#ifdef DEB
if(OldAtt->InternalArray().IsNull())
cout << "BackUp Arr is Nullified" << endl;
#endif
}
}
//=======================================================================
//function : Apply
//purpose :
//=======================================================================
void TDataStd_DeltaOnModificationOfByteArray::Apply()
{
Handle(TDF_Attribute) TDFAttribute = Attribute();
Handle(TDataStd_ByteArray) BackAtt = (*((Handle(TDataStd_ByteArray)*)&TDFAttribute));
if(BackAtt.IsNull()) {
#ifdef DEB
cout << "DeltaOnModificationOfByteArray::Apply: OldAtt is Null" <<endl;
#endif
return;
}
Handle(TDataStd_ByteArray) aCurAtt;
if (!Label().FindAttribute(BackAtt->ID(),aCurAtt)) {
Label().AddAttribute(BackAtt);
}
if(aCurAtt.IsNull()) {
#ifdef DEB
cout << "DeltaOnModificationOfByteArray::Apply: CurAtt is Null" <<endl;
#endif
return;
}
else
aCurAtt->Backup();
Standard_Integer aCase;
if(myUp1 == myUp2)
aCase = 1;
else if(myUp1 < myUp2)
aCase = 2;
else
aCase = 3;//Up1 > Up2
if (aCase == 1 && (myIndxes.IsNull() || myValues.IsNull()))
return;
Standard_Integer i;
Handle(TColStd_HArray1OfByte) BArr = aCurAtt->InternalArray();
if(BArr.IsNull()) return;
if(aCase == 1)
for(i = 1; i <= myIndxes->Upper();i++)
BArr->ChangeArray1().SetValue(myIndxes->Value(i), myValues->Value(i));
else if(aCase == 2) {
Handle(TColStd_HArray1OfByte) byteArr = new TColStd_HArray1OfByte(BArr->Lower(), myUp1);
for(i = BArr->Lower(); i <= myUp1 && i <= BArr->Upper(); i++)
byteArr->SetValue(i, BArr->Value(i));
if(!myIndxes.IsNull() && !myValues.IsNull())
for(i = 1; i <= myIndxes->Upper();i++)
byteArr->ChangeArray1().SetValue(myIndxes->Value(i), myValues->Value(i));
aCurAtt->myValue = byteArr;
}
else { // aCase == 3
Standard_Integer low = BArr->Lower();
Handle(TColStd_HArray1OfByte) byteArr = new TColStd_HArray1OfByte(low, myUp1);
for(i = BArr->Lower(); i <= myUp2 && i <= BArr->Upper(); i++)
byteArr->SetValue(i, BArr->Value(i));
if(!myIndxes.IsNull() && !myValues.IsNull())
for(i = 1; i <= myIndxes->Upper();i++) {
#ifdef DEB
cout << "i = " << i << " myIndxes->Upper = " << myIndxes->Upper() << endl;
cout << "myIndxes->Value(i) = " << myIndxes->Value(i) << endl;
cout << "myValues->Value(i) = " << myValues->Value(i) << endl;
#endif
byteArr->ChangeArray1().SetValue(myIndxes->Value(i), myValues->Value(i));
}
aCurAtt->myValue = byteArr;
}
#ifdef DEB
cout << " << Array Dump after Delta Apply >>" <<endl;
Handle(TColStd_HArray1OfByte) BArr2 = aCurAtt->InternalArray();
for(i=BArr2->Lower(); i<=BArr2->Upper() && i<= MAXUP;i++)
cout << BArr2->Value(i) << " ";
cout <<endl;
#endif
}
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