summaryrefslogtreecommitdiff
path: root/src/XSControl/XSControl_Utils.cxx
blob: a050bd774ff25b3689cc558c65a3b1b734ce6e44 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
#include <XSControl_Utils.ixx>
#include <Message_Messenger.hxx>
#include <Message.hxx>
#include <Interface_Macros.hxx>
#include <Interface_MSG.hxx>

#include <TColStd_HSequenceOfAsciiString.hxx>
#include <TColStd_HSequenceOfExtendedString.hxx>
#include <TColStd_HArray1OfTransient.hxx>
#include <Interface_HArray1OfHAsciiString.hxx>

#include <TransferBRep.hxx>
#include <TransferBRep_ShapeBinder.hxx>
#include <TransferBRep_ShapeMapper.hxx>
#include <TopoDS_HShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Wire.hxx>
#include <TopoDS_Shell.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Iterator.hxx>
#include <TopExp_Explorer.hxx>
#include <Transfer_SimpleBinderOfTransient.hxx>

#include <BRep_Builder.hxx>
#include <BRepTools.hxx>


static TCollection_AsciiString    bufasc;
static TCollection_ExtendedString bufext;
static const Standard_ExtString   voidext = { 0 };


    XSControl_Utils::XSControl_Utils ()    {  }

//  #########################################################
//  #######           Fonctions  de   TRACE           #######

    void  XSControl_Utils::TraceLine (const Standard_CString line) const
{
  Handle(Message_Messenger) sout = Message::DefaultMessenger();
  sout<<line<<endl;
}

    void  XSControl_Utils::TraceLines (const Handle(Standard_Transient)& lines) const
{
  Handle(Message_Messenger) sout = Message::DefaultMessenger();
  Standard_Integer i,nb;
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,linha,lines);
  if (!linha.IsNull()) {
    nb = linha->Length();
    for (i = 1; i <= nb; i ++)
      if (!linha->Value(i).IsNull()) sout<<linha->Value(i)->ToCString()<<endl;
    return;
  }
  DeclareAndCast(TColStd_HSequenceOfAsciiString,lina,lines);
  if (!lina.IsNull()) {
    nb = lina->Length();
    for (i = 1; i <= nb; i ++)
      sout<<lina->Value(i).ToCString()<<endl;
    return;
  }
  DeclareAndCast(TColStd_HSequenceOfHExtendedString,linhe,lines);
  if (!linhe.IsNull()) {
    nb = linhe->Length();
    for (i = 1; i <= nb; i ++)
      if (!linhe->Value(i).IsNull())
	sout << linhe->Value(i) << endl;
    return;
  }
  DeclareAndCast(TColStd_HSequenceOfExtendedString,linee,lines);
  if (!linee.IsNull()) {
    nb = linee->Length();
    for (i = 1; i <= nb; i ++)
      sout << linee->Value(i) << endl;
    return;
  }
  DeclareAndCast(TCollection_HAsciiString,lin1a,lines);
  if (!lin1a.IsNull()) sout<<lin1a;
  DeclareAndCast(TCollection_HExtendedString,lin1e,lines);
  if (!lin1e.IsNull()) sout<<lin1e;
}


//  #########################################################
//  #######   TRANSIENT : Quelques  acces  de  base   #######

    Standard_Boolean  XSControl_Utils::IsKind
  (const Handle(Standard_Transient)& item, const Handle(Standard_Type)& what) const
{
  if (item.IsNull()) return Standard_False;
  if (what.IsNull()) return Standard_False;
  return item->IsKind(what);
}

    Standard_CString  XSControl_Utils::TypeName
  (const Handle(Standard_Transient)& item, const Standard_Boolean nopk) const
{
  if (item.IsNull()) return "";
  DeclareAndCast(Standard_Type,atype,item);
  if (atype.IsNull()) atype = item->DynamicType();
  Standard_CString tn = atype->Name();
  if (!nopk) return tn;
  for (int i = 0; tn[i] != '\0'; i ++) {
    if (tn[i] == '_') return &tn[i+1];
  }
  return tn;
}


//  #######       TRANSIENT : Fonctions de liste       #######

    Handle(Standard_Transient)  XSControl_Utils::TraValue
  (const Handle(Standard_Transient)& seqval, const Standard_Integer num) const
{
  Handle(Standard_Transient) val;
  if (num < 1) return val;
  if (seqval.IsNull()) return val;
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,seqs,seqval);
  if (!seqs.IsNull())
    {  if (num <= seqs->Length()) val = seqs->Value(num);  return val;  }
  DeclareAndCast(TColStd_HSequenceOfTransient,seqt,seqval);
  if (!seqt.IsNull())
    {  if (num <= seqt->Length()) val = seqt->Value(num);  return val;  }
//  Standard_TypeMismatch::Raise("XSControl_Utils::SeqTraValue");
  return val;
}

    Handle(TColStd_HSequenceOfTransient) XSControl_Utils::NewSeqTra () const
      {  return  new TColStd_HSequenceOfTransient();  }

    void  XSControl_Utils::AppendTra
  (const Handle(TColStd_HSequenceOfTransient)& seqval,
   const Handle(Standard_Transient)& traval) const
      {  seqval->Append (traval);  }


//  #######           DATES           #######

    Standard_CString  XSControl_Utils::DateString
  (const Standard_Integer yy, const Standard_Integer mm,
   const Standard_Integer dd, const Standard_Integer hh,
   const Standard_Integer mn, const Standard_Integer ss) const
{
  char ladate[50];
  Interface_MSG::TDate (ladate, yy,mm,dd,hh,mn,ss);
  bufasc.Clear();  bufasc.AssignCat(ladate);
  return bufasc.ToCString();
}

    void  XSControl_Utils::DateValues
  (const Standard_CString text,
   Standard_Integer& yy, Standard_Integer& mm, Standard_Integer& dd,
   Standard_Integer& hh, Standard_Integer& mn, Standard_Integer& ss) const
      {  Interface_MSG::NDate (text, yy,mm,dd,hh,mn,ss);  }


//  ##########################################################
//  #######           STRING : Ascii de base           #######

    Standard_CString  XSControl_Utils::ToCString
  (const Handle(TCollection_HAsciiString)& strval) const
      {
//JR/Hp
         Standard_CString astr = (Standard_CString ) (strval.IsNull() ? "" : strval->ToCString());
         return astr ;
//         return (strval.IsNull() ? "" : strval->ToCString());
      }

    Standard_CString  XSControl_Utils::ToCString
  (const TCollection_AsciiString& strval) const
      {  return strval.ToCString();  }

    Handle(TCollection_HAsciiString)  XSControl_Utils::ToHString
  (const Standard_CString strcon) const
      {  return new TCollection_HAsciiString(strcon);  }

    TCollection_AsciiString  XSControl_Utils::ToAString
  (const Standard_CString strcon) const
      {  return TCollection_AsciiString(strcon);  }

//  #######         STRING : Extended de base         #######

    Standard_ExtString  XSControl_Utils::ToEString
  (const Handle(TCollection_HExtendedString)& strval) const
      {  return (strval.IsNull() ? voidext : strval->ToExtString());  }

    Standard_ExtString  XSControl_Utils::ToEString
  (const TCollection_ExtendedString& strval) const
      {  return strval.ToExtString();  }

    Handle(TCollection_HExtendedString)  XSControl_Utils::ToHString
  (const Standard_ExtString strcon) const
      {  return new TCollection_HExtendedString(strcon);  }

    TCollection_ExtendedString  XSControl_Utils::ToXString
  (const Standard_ExtString strcon) const
      {  return TCollection_ExtendedString(strcon);  }

//  #######        STRING : Ascii <-> Extended        #######

    Standard_ExtString  XSControl_Utils::AsciiToExtended (const Standard_CString str) const
{
  bufext.Clear();  bufext = TCollection_ExtendedString (str);
  return bufext.ToExtString();
}

    Standard_Boolean  XSControl_Utils::IsAscii (const Standard_ExtString str) const
{
  bufext.Clear();  bufext.AssignCat (str);
  return bufext.IsAscii();
}

    Standard_CString  XSControl_Utils::ExtendedToAscii (const Standard_ExtString str) const
{
  bufext.Clear();  bufext.AssignCat (str);  bufasc.Clear();
  Standard_Integer i, nb = bufext.Length();
  for (i = 1; i <= nb; i ++) {
    int unext = bufext.Value(i);
    unext = unext & 127;
    char uncar = char(unext);
    bufasc.AssignCat (uncar);
  }
  return bufasc.ToCString();
}

//  #######              STRING : LISTES              #######

    Standard_CString  XSControl_Utils::CStrValue
  (const Handle(Standard_Transient)& list, const Standard_Integer num) const
{
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,linha,list);
  if (!linha.IsNull()) {
//JR/Hp
    Standard_CString astr = (Standard_CString )
    (num > linha->Length() ? "" : linha->Value(num)->ToCString());
    return astr ;
//    return (num > linha->Length() ? "" : linha->Value(num)->ToCString());
  }

  DeclareAndCast(TColStd_HSequenceOfAsciiString,lina,list);
  if (!lina.IsNull()) {
//JR/Hp
    Standard_CString astr = (Standard_CString ) 
    (num > lina->Length() ? "" : lina->Value(num).ToCString());  
    return astr ;
//    return (num > lina->Length() ? "" : lina->Value(num).ToCString());  
  }

  DeclareAndCast(TColStd_HSequenceOfHExtendedString,linhe,list);
  if (!linhe.IsNull()) {
//JR/Hp
    Standard_CString astr = (Standard_CString ) 
    (num > linhe->Length() ? "" : ExtendedToAscii(linhe->Value(num)->ToExtString()));  
    return astr ;
//   return (num > linhe->Length() ? "" : ExtendedToAscii(linhe->Value(num)->ToExtString()));  
  }

  DeclareAndCast(TColStd_HSequenceOfExtendedString,linee,list);
  if (!linee.IsNull()) {
//JR/Hp
    Standard_CString astr = (Standard_CString ) 
    (num > linee->Length() ? "" : ExtendedToAscii(linee->Value(num).ToExtString()));  
    return astr ;
//    return (num > linee->Length() ? "" : ExtendedToAscii(linee->Value(num).T
  }

  DeclareAndCast(TCollection_HAsciiString,lin1a,list);
  if (!lin1a.IsNull()) return lin1a->ToCString();
  DeclareAndCast(TCollection_HExtendedString,lin1e,list);
  if (!lin1e.IsNull()) return ExtendedToAscii(lin1e->ToExtString());
  return "";
}


    Standard_ExtString  XSControl_Utils::EStrValue
  (const Handle(Standard_Transient)& list, const Standard_Integer num) const
{
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,linha,list);
  if (!linha.IsNull()) return
    (num > linha->Length() ? voidext : AsciiToExtended(linha->Value(num)->ToCString()));

  DeclareAndCast(TColStd_HSequenceOfAsciiString,lina,list);
  if (!lina.IsNull())
    (num > lina->Length() ? voidext : AsciiToExtended(lina->Value(num).ToCString()));

  DeclareAndCast(TColStd_HSequenceOfHExtendedString,linhe,list);
  if (!linhe.IsNull()) return
    (num > linhe->Length() ? voidext : linhe->Value(num)->ToExtString());

  DeclareAndCast(TColStd_HSequenceOfExtendedString,linee,list);
  if (!linee.IsNull()) return
    (num > linee->Length() ? voidext : linee->Value(num).ToExtString());

  DeclareAndCast(TCollection_HAsciiString,lin1a,list);
  if (!lin1a.IsNull()) return AsciiToExtended(lin1a->ToCString());
  DeclareAndCast(TCollection_HExtendedString,lin1e,list);
  if (!lin1e.IsNull()) return lin1e->ToExtString();
  return voidext;
}

    Handle(TColStd_HSequenceOfHAsciiString) XSControl_Utils::NewSeqCStr () const
      {  return  new TColStd_HSequenceOfHAsciiString();  }

    void  XSControl_Utils::AppendCStr
  (const Handle(TColStd_HSequenceOfHAsciiString)& seqval,
   const Standard_CString strval) const
      {  seqval->Append (new TCollection_HAsciiString(strval));  }

    Handle(TColStd_HSequenceOfHExtendedString) XSControl_Utils::NewSeqEStr () const
      {  return  new TColStd_HSequenceOfHExtendedString();  }

    void  XSControl_Utils::AppendEStr
  (const Handle(TColStd_HSequenceOfHExtendedString)& seqval,
   const Standard_ExtString strval) const
      {  seqval->Append (new TCollection_HExtendedString(strval));  }


//  ##########################################################
//  #######           SHAPES : Acces de base           #######

    Standard_Boolean  XSControl_Utils::WriteShape
  (const TopoDS_Shape& shape,
   const Standard_CString filename) const
      {  return BRepTools::Write (shape,filename);  }

    TopoDS_Shape  XSControl_Utils::NewShape () const
      {  TopoDS_Shape shape;  return shape;  }

    Standard_Boolean  XSControl_Utils::ReadShape
  (TopoDS_Shape& shape,
   const Standard_CString filename) const
{
  BRep_Builder B;
  return BRepTools::Read (shape,filename,B);
}

    Standard_Boolean  XSControl_Utils::IsNullShape (const TopoDS_Shape& shape) const
      {  return shape.IsNull();  }


    TopoDS_Shape  XSControl_Utils::CompoundFromSeq
  (const Handle(TopTools_HSequenceOfShape)& seqval) const
{
  BRep_Builder B;
  TopoDS_Compound C;
  B.MakeCompound(C);
  Standard_Integer i,n = seqval->Length();
  for (i = 1; i <= n ; i ++)  B.Add(C,seqval->Value(i));
  return C;
}

    TopAbs_ShapeEnum  XSControl_Utils::ShapeType
  (const TopoDS_Shape& shape, const Standard_Boolean compound) const
{
  if (shape.IsNull()) return TopAbs_SHAPE;
  TopAbs_ShapeEnum res = shape.ShapeType();
  if (!compound || res != TopAbs_COMPOUND) return res;
  res = TopAbs_SHAPE;
  for (TopoDS_Iterator iter(shape); iter.More(); iter.Next()) {
    TopoDS_Shape sh = iter.Value();
    if (sh.IsNull()) continue;
    TopAbs_ShapeEnum typ = sh.ShapeType();
    if (typ == TopAbs_COMPOUND) typ = ShapeType (sh,compound);
    if (res == TopAbs_SHAPE) res = typ;
//   Egalite : OK;  Pseudo-Egalite : EDGE/WIRE ou FACE/SHELL
    else if (res == TopAbs_EDGE  && typ == TopAbs_WIRE)  res = typ;
    else if (res == TopAbs_WIRE  && typ == TopAbs_EDGE)  continue;
    else if (res == TopAbs_FACE  && typ == TopAbs_SHELL) res = typ;
    else if (res == TopAbs_SHELL && typ == TopAbs_FACE)  continue;
    else if (res != typ) return TopAbs_COMPOUND;
  }
  return res;
}

    TopoDS_Shape  XSControl_Utils::SortedCompound
  (const TopoDS_Shape& shape, const TopAbs_ShapeEnum type,
   const Standard_Boolean explore, const Standard_Boolean compound) const
{
  if (shape.IsNull()) return shape;
  TopAbs_ShapeEnum typ = shape.ShapeType();
  TopoDS_Shape sh, sh0;
  Standard_Integer nb = 0;

//  Compound : on le prend, soit tel quel, soit son contenu
  if (typ == TopAbs_COMPOUND || typ == TopAbs_COMPSOLID) {
    TopoDS_Compound C;
    BRep_Builder B;
    B.MakeCompound (C);
    for (TopoDS_Iterator it(shape); it.More(); it.Next()) {
      sh0 = SortedCompound (it.Value(),type,explore,compound);
      if (sh0.IsNull()) continue;
      sh = sh0;
      typ = sh.ShapeType();
      if (typ == TopAbs_COMPOUND && !compound) {
	for (TopoDS_Iterator it2 (sh); it2.More(); it2.Next())
	  {  nb ++;  sh = it2.Value();  B.Add (C, sh);  }
      }
      else  {  nb ++;  B.Add (C,sh);  }
    }
    if (nb == 0) C.Nullify();
    else if (nb == 1) return sh;
    return C;
  }

//   Egalite : OK;  Pseudo-Egalite : EDGE/WIRE ou FACE/SHELL
  if (typ == type) return shape;
  if (typ == TopAbs_EDGE && type == TopAbs_WIRE) {
    BRep_Builder B;
    TopoDS_Wire W;
    B.MakeWire (W);
    B.Add (W,shape);  // ne passe pas ! : TopoDS::Edge(shape)
    return W;
  }
  if (typ == TopAbs_FACE && type == TopAbs_SHELL) {
    BRep_Builder B;
    TopoDS_Shell S;
    B.MakeShell (S);
    B.Add (S,shape);  // ne passe pas ! : TopoDS::Face(shape));
    return S;
  }

//   Le reste : selon exploration
  if (!explore) {
    TopoDS_Shape nulsh;
    return nulsh;
  }

//  Ici, on doit explorer
//  SOLID + mode COMPOUND : reconduire les SHELLs
  if (typ == TopAbs_SOLID && compound) {
    TopoDS_Compound C;
    BRep_Builder B;
    B.MakeCompound (C);
    for (TopoDS_Iterator it(shape); it.More(); it.Next()) {
      sh0 = SortedCompound (it.Value(),type,explore,compound);
      if (sh0.IsNull()) continue;
      sh = sh0;
      nb ++;  B.Add (C,sh);
    }
    if (nb == 0) C.Nullify();
    else if (nb == 1) return sh;
    return C;
  }

//  Exploration classique
  TopoDS_Compound CC;
  BRep_Builder BB;
  BB.MakeCompound(CC);
  for (TopExp_Explorer expl (shape,type); expl.More(); expl.Next()) {
    nb ++;  sh = expl.Current();
    BB.Add (CC,sh);
  }
  if (nb == 0) CC.Nullify();
  else if (nb == 1) return sh;
  return CC;
}


//  #######               SHAPES : Liste               #######

    TopoDS_Shape  XSControl_Utils::ShapeValue
  (const Handle(TopTools_HSequenceOfShape)& seqval, const Standard_Integer num) const
{
  TopoDS_Shape shape;
  if (seqval.IsNull()) return shape;
  if (num > 0 && num <= seqval->Length()) shape = seqval->Value(num);
  return shape;
}

    Handle(TopTools_HSequenceOfShape) XSControl_Utils::NewSeqShape () const
      {  return  new TopTools_HSequenceOfShape();  }

    void  XSControl_Utils::AppendShape
  (const Handle(TopTools_HSequenceOfShape)& seqval, const TopoDS_Shape& shape) const
      {  seqval->Append (shape);  }

//  #######            SHAPES <-> Transient            #######

    Handle(Standard_Transient)  XSControl_Utils::ShapeBinder
  (const TopoDS_Shape& shape, const Standard_Boolean hs) const
      {  if (hs) return new TopoDS_HShape            (shape);
         else    return new TransferBRep_ShapeBinder (shape);  }

    TopoDS_Shape  XSControl_Utils::BinderShape
  (const Handle(Standard_Transient)& tr) const
{
  TopoDS_Shape sh;
  DeclareAndCast(Transfer_Binder,sb,tr);
  if (!sb.IsNull()) return TransferBRep::ShapeResult(sb);
  DeclareAndCast(TransferBRep_ShapeMapper,sm,tr);
  if (!sm.IsNull()) return sm->Value();
  DeclareAndCast(TopoDS_HShape,hs,tr);
  if (!hs.IsNull()) return hs->Shape();
  return sh;
}


//  ##########################################################
//  #######        LISTES : Fonctions Generales        #######

    Standard_Integer  XSControl_Utils::SeqLength
  (const Handle(Standard_Transient)& seqval) const
{
  if (seqval.IsNull()) return 0;
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,seqs,seqval);
  if (!seqs.IsNull()) return seqs->Length();
  DeclareAndCast(TColStd_HSequenceOfAsciiString,seqa,seqval);
  if (!seqa.IsNull()) return seqa->Length();
  DeclareAndCast(TColStd_HSequenceOfHExtendedString,seqe,seqval);
  if (!seqe.IsNull()) return seqe->Length();
  DeclareAndCast(TColStd_HSequenceOfHExtendedString,seqx,seqval);
  if (!seqx.IsNull()) return seqx->Length();

  DeclareAndCast(TColStd_HSequenceOfTransient,seqt,seqval);
  if (!seqt.IsNull()) return seqt->Length();
  DeclareAndCast(TopTools_HSequenceOfShape,seqh,seqval);
  if (!seqh.IsNull()) return seqh->Length();
  DeclareAndCast(TColStd_HSequenceOfInteger,seqi,seqval);
  if (!seqi.IsNull()) return seqi->Length();
//  Standard_TypeMismatch::Raise("XSControl_Utils::SeqLength");
  return 0;
}

    Handle(Standard_Transient)  XSControl_Utils::SeqToArr
  (const Handle(Standard_Transient)& seqval, const Standard_Integer first) const
{
  Standard_Integer i,lng;
  Handle(Standard_Transient) val;
  if (seqval.IsNull()) return val;
  DeclareAndCast(TColStd_HSequenceOfHAsciiString,seqs,seqval);
  if (!seqs.IsNull()) {
    lng = seqs->Length();
    Handle(Interface_HArray1OfHAsciiString) arrs =
      new Interface_HArray1OfHAsciiString(first,lng-first+1);
    for (i = 1; i <= lng; i ++)  arrs->SetValue (i-first+1,seqs->Value(i));
    return arrs;
  }
  DeclareAndCast(TColStd_HSequenceOfTransient,seqt,seqval);
  if (!seqt.IsNull()) {
    lng = seqt->Length();
    Handle(TColStd_HArray1OfTransient) arrt =
      new TColStd_HArray1OfTransient(first,lng-first+1);
    for (i = 1; i <= lng; i ++)  arrt->SetValue (i-first+1,seqt->Value(i));
    return arrt;
  }
  Standard_TypeMismatch::Raise("XSControl_Utils::SeqToArr");
  return val;
}


    Handle(Standard_Transient)  XSControl_Utils::ArrToSeq
  (const Handle(Standard_Transient)& arrval) const
{
  Standard_Integer i,first,last;
  Handle(Standard_Transient) val;
  if (arrval.IsNull()) return val;
  DeclareAndCast(Interface_HArray1OfHAsciiString,arrs,arrval);
  if (!arrs.IsNull()) {
    first = arrs->Lower();
    last  = arrs->Upper();
    Handle(TColStd_HSequenceOfHAsciiString) seqs =
      new TColStd_HSequenceOfHAsciiString();
    for (i = first; i <= last; i ++)  seqs->Append (arrs->Value(i));
    return seqs;
  }
  DeclareAndCast(TColStd_HArray1OfTransient,arrt,arrval);
  if (!arrt.IsNull()) {
    first = arrt->Lower();
    last  = arrt->Upper();
    Handle(TColStd_HSequenceOfTransient) seqt =
      new TColStd_HSequenceOfTransient();
    for (i = first; i <= last; i ++)  seqt->Append (arrt->Value(i));
    return seqt;
  }
  Standard_TypeMismatch::Raise("XSControl_Utils::ArrToSeq");
  return val;
}


    Standard_Integer  XSControl_Utils::SeqIntValue
  (const Handle(TColStd_HSequenceOfInteger)& seqval,
   const Standard_Integer num) const
{
  if (seqval.IsNull()) return 0;
  return seqval->Value(num);
}