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// File: DDF_TransactionCommands.cxx
// ---------------------------
// Author: DAUTRY Philippe
// <fid@fox.paris1.matra-dtv.fr>
// Copyright: Matra Datavision 1997
// Version: 0.0
// History: Version Date Purpose
// 0.0 Sep 30 1997 Creation
#include <DDF.hxx>
#include <DDF_Data.hxx>
#include <DDF_Transaction.hxx>
#include <DDF_TransactionStack.hxx>
#include <Draw.hxx>
#include <Draw_Appli.hxx>
#include <Draw_Drawable3D.hxx>
#include <Draw_Interpretor.hxx>
#include <TDF_Data.hxx>
#include <TDF_Delta.hxx>
#include <TDF_Transaction.hxx>
static DDF_TransactionStack DDF_TStack;
static Handle(TDF_Delta) DDF_LastDelta;
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Transaction commands
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//=======================================================================
//function : OpenTran
//purpose : Opens a transaction
//=======================================================================
static Standard_Integer OpenTran (Draw_Interpretor& di,
Standard_Integer n,
const char** a)
{
if (n < 2) return 1;
Handle(TDF_Data) DF;
if (DDF::GetDF (a[1], DF)) {
Handle(DDF_Transaction) tr = new DDF_Transaction(DF);
di<<"Open transaction # "<<tr->Open()<<" # "<<DF->Transaction()<<"\n";
DDF_TStack.Push(tr);
}
return 0;
}
//=======================================================================
//function : AbortTran
//purpose : Aborts a transaction
//=======================================================================
static Standard_Integer AbortTran (Draw_Interpretor& di,
Standard_Integer n,
const char** a)
{
if (n < 2) return 1;
Handle(TDF_Data) DF;
if (DDF::GetDF (a[1], DF)) {
if (DF->Transaction () > 0) {
Handle(DDF_Transaction) tr = DDF_TStack.Top();
di<<"Abort transaction # "<<tr->Transaction()<<" # "<<DF->Transaction()<<"\n";
tr->Abort();
DDF_TStack.Pop();
}
else {
di<<"DDF_BasicCommands::AbortTran - No more transaction to abort"<<"\n";
}
}
return 0;
}
//=======================================================================
//function : CommitTran
//purpose : Commits a transaction
//=======================================================================
static Standard_Integer CommitTran (Draw_Interpretor& di,
Standard_Integer n,
const char** a)
{
if (n < 2) return 1;
Handle(TDF_Data) DF;
if (DDF::GetDF (a[1], DF)) {
if (DF->Transaction () > 0) {
Handle(DDF_Transaction) tr = DDF_TStack.Top();
di<<"Commit transaction # "<<tr->Transaction()<<" # "<<DF->Transaction()<<"\n";
Standard_Boolean withDelta = Standard_False;
if (n > 2) withDelta = (atoi(a[2]) != 0);
DDF_LastDelta = tr->Commit(withDelta);
DDF_TStack.Pop();
}
else {
di<<"DDF_BasicCommands::CommitTran - No more transaction to commit"<<"\n";
}
}
return 0;
}
//=======================================================================
//function : CurrentTran
//purpose : Current transaction number.
//=======================================================================
static Standard_Integer CurrentTran (Draw_Interpretor& di,
Standard_Integer n,
const char** a)
{
if (n < 2) return 1;
Handle(TDF_Data) DF;
if (DDF::GetDF (a[1], DF)) {
di<<"# "<<DF->Transaction()<<"\n";
if (!DDF_TStack.IsEmpty())
if (DF->Transaction() != DDF_TStack.Top()->Transaction())
di<<"Transaction object said # "<<DDF_TStack.Top()->Transaction()<<"\n";
}
return 0;
}
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Delta commands
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//=======================================================================
//function : Undo
//purpose : Undo
//=======================================================================
static Standard_Integer Undo (Draw_Interpretor& di,
Standard_Integer n,
const char** a)
{
if (n < 2) return 1;
Handle(TDF_Data) DF;
if (DDF::GetDF (a[1], DF)) {
Standard_Boolean withDelta = Standard_False;
if (n > 2) withDelta = (atoi(a[2]) != 0);
if (!DDF_LastDelta.IsNull()) {
if (DF->IsApplicable(DDF_LastDelta)) {
Handle(TDF_Delta) tmp = DF->Undo(DDF_LastDelta,withDelta);
DDF_LastDelta = tmp;
}
else {
di<<"Undo not applicable HERE and NOW."<<"\n";
return 1;
}
}
else {
di<<"No undo to apply."<<"\n";
return 1;
}
}
else {
di<<"Unknown DF."<<"\n";
return 1;
}
return 0;
}
// ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
//=======================================================================
//function : TransactionCommands
//purpose :
//=======================================================================
void DDF::TransactionCommands (Draw_Interpretor& theCommands)
{
static Standard_Boolean done = Standard_False;
if (done) return;
done = Standard_True;
const char* g = "DF transaction and undo commands";
// Transaction :
// +++++++++++++
theCommands.Add
("OpenTran",
"Opens a transaction on a DF: OpenTran dfname",
__FILE__, OpenTran, g);
theCommands.Add
("AbortTran",
"Aborts a transaction on a DF: AbortTran dfname",
__FILE__, AbortTran, g);
theCommands.Add
("CommitTran",
"Commits a transaction on a DF with/without delta generation : CommitTran dfname [withDelta]",
__FILE__, CommitTran, g);
theCommands.Add
("CurrentTran",
"Returns the current transaction number on a DF : CurrentTran dfname",
__FILE__, CurrentTran, g);
// Undo :
// ++++++
theCommands.Add
("DFUndo",
" Undos last DF commit modifications: Undo dfname [withDelta]",
__FILE__, Undo, g);
}
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