0024252: GCC warnings on breakage of strict-aliasing rules
[occt.git] / src / XmlMNaming / XmlMNaming_NamedShapeDriver.cxx
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b311480e 1// Created on: 2001-07-11
2// Created by: Julia DOROVSKIKH
973c2be1 3// Copyright (c) 2001-2014 OPEN CASCADE SAS
b311480e 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
b311480e 6//
973c2be1 7// This library is free software; you can redistribute it and / or modify it
8// under the terms of the GNU Lesser General Public version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
b311480e 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
b311480e 15
16//AGV 150202: Changed prototype LDOM_Node::getOwnerDocument()
7fd59977 17
18#include <XmlMNaming_NamedShapeDriver.ixx>
19
20#include <XmlObjMgt.hxx>
21#include <XmlMNaming_Array1OfShape1.hxx>
22#include <XmlMNaming_Shape1.hxx>
23
24#include <TDF_Label.hxx>
25#include <TNaming_Builder.hxx>
26#include <TNaming_NamedShape.hxx>
27#include <TNaming_Iterator.hxx>
28
29#include <TopoDS_Shape.hxx>
30#include <BRepTools.hxx>
31#include <LDOM_Text.hxx>
32#include <LDOM_OSStream.hxx>
33
34#include <Standard_SStream.hxx>
35
36static TNaming_Evolution EvolutionEnum (const XmlObjMgt_DOMString&);
37static const XmlObjMgt_DOMString& EvolutionString (const TNaming_Evolution);
38static void doTranslate (const TopoDS_Shape&,
39 XmlMNaming_Shape1&,
40 BRepTools_ShapeSet&);
41static int doTranslate (const XmlMNaming_Shape1&,
42 TopoDS_Shape&,
43 BRepTools_ShapeSet&);
44
45IMPLEMENT_DOMSTRING (OldsString, "olds")
46IMPLEMENT_DOMSTRING (NewsString, "news")
47IMPLEMENT_DOMSTRING (StatusString, "evolution")
48IMPLEMENT_DOMSTRING (VersionString, "version")
49IMPLEMENT_DOMSTRING (ShapesString, "shapes")
50
51IMPLEMENT_DOMSTRING (EvolPrimitiveString, "primitive")
52IMPLEMENT_DOMSTRING (EvolGeneratedString, "generated")
53IMPLEMENT_DOMSTRING (EvolModifyString, "modify")
54IMPLEMENT_DOMSTRING (EvolDeleteString, "delete")
55IMPLEMENT_DOMSTRING (EvolSelectedString, "selected")
56IMPLEMENT_DOMSTRING (EvolReplaceString, "replace")
57
58//=======================================================================
59//function : XmlMNaming_NamedShapeDriver
60//purpose : Constructor
61//=======================================================================
62
63XmlMNaming_NamedShapeDriver::XmlMNaming_NamedShapeDriver
64 (const Handle(CDM_MessageDriver&) theMessageDriver)
65 : XmlMDF_ADriver (theMessageDriver, NULL),
66 myShapeSet (Standard_False) // triangles mode
67{}
68
69//=======================================================================
70//function : NewEmpty()
71//purpose :
72//=======================================================================
73Handle(TDF_Attribute) XmlMNaming_NamedShapeDriver::NewEmpty () const
74{
75 return (new TNaming_NamedShape());
76}
77
78//=======================================================================
79//function : Paste()
80//purpose : retrieval of TNaming_NamedShape
81//=======================================================================
82
83Standard_Boolean XmlMNaming_NamedShapeDriver::Paste
84 (const XmlObjMgt_Persistent& theSource,
85 const Handle(TDF_Attribute)& theTarget,
86 XmlObjMgt_RRelocationTable&) const
87{
88 Handle(TNaming_NamedShape) aTarget =
89 Handle(TNaming_NamedShape)::DownCast(theTarget);
90 TDF_Label Label = aTarget -> Label();
91 TNaming_Builder aBld (Label);
92
93 // Get Version
94 Standard_Integer aVersion = 0;
95 const XmlObjMgt_Element& anElement = theSource;
96 XmlObjMgt_DOMString aVerString = anElement.getAttribute (::VersionString());
97 if (aVerString != NULL)
98 aVerString.GetInteger (aVersion);
99
100 // Get Evolution status
101 XmlObjMgt_DOMString aStatus = anElement.getAttribute (::StatusString());
102 TNaming_Evolution evol = EvolutionEnum (aStatus);
103 // apres creation Builder qui a mis la version a 1 :
104 aTarget -> SetVersion (aVersion);
105
106 const XmlMNaming_Array1OfShape1 OldPShapes (anElement, ::OldsString());
107 const XmlMNaming_Array1OfShape1 NewPShapes (anElement, ::NewsString());
108 if (NewPShapes.Length() == 0 && OldPShapes.Length() == 0)
109 return Standard_True;
110
111 TopoDS_Shape anOldShape;
112 TopoDS_Shape aNewShape;
113 BRepTools_ShapeSet& aShapeSet = (BRepTools_ShapeSet&) myShapeSet;
114
115 Standard_Integer lower = NewPShapes.Lower();
116 if (OldPShapes.Lower() < lower) lower = OldPShapes.Lower();
117
118 Standard_Integer upper = NewPShapes.Upper();
119 if (OldPShapes.Upper() > upper) upper = OldPShapes.Upper();
120
121 for (Standard_Integer i = lower; i <= upper; i++)
122 {
123 const XmlMNaming_Shape1 aNewPShape = NewPShapes.Value(i);
124 const XmlMNaming_Shape1 anOldPShape = OldPShapes.Value(i);
125
126 if ( evol != TNaming_PRIMITIVE && anOldPShape.Element() != NULL )
127 {
128 if (::doTranslate (anOldPShape, anOldShape, aShapeSet)) {
129 WriteMessage ("NamedShapeDriver: Error reading a shape from array");
130 return Standard_False;
131 }
132 }
133
134 if (evol != TNaming_DELETE && aNewPShape.Element() != NULL )
135 {
136 if (::doTranslate (aNewPShape, aNewShape, aShapeSet)) {
137 WriteMessage ("NamedShapeDriver: Error reading a shape from array");
138 return Standard_False;
139 }
140 }
141
142 switch (evol)
143 {
144 case TNaming_PRIMITIVE:
145 aBld.Generated(aNewShape);
146 break;
147 case TNaming_GENERATED:
148 aBld.Generated(anOldShape,aNewShape);
149 break;
150 case TNaming_MODIFY:
151 aBld.Modify(anOldShape,aNewShape);
152 break;
153 case TNaming_DELETE:
154 aBld.Delete(anOldShape);
155 break;
156 case TNaming_SELECTED:
157 aBld.Select(aNewShape, anOldShape);
158 break;
566f8441 159 case TNaming_REPLACE:
160 aBld.Modify(anOldShape,aNewShape);
161 break; // for compatibility
1ec8a59e 162 // case TNaming_REPLACE:
163 // aBld.Replace(anOldShape,aNewShape);
164 // break;
7fd59977 165 default:
166 Standard_DomainError::Raise("TNaming_Evolution; enum term unknown");
167 }
168 anOldShape.Nullify();
169 aNewShape.Nullify();
170 }
171 return Standard_True;
172}
173
174//=======================================================================
175//function : Paste()
176//purpose : storage of TNaming_NamedShape
177//=======================================================================
178
179void XmlMNaming_NamedShapeDriver::Paste (const Handle(TDF_Attribute)& theSource,
180 XmlObjMgt_Persistent& theTarget,
181 XmlObjMgt_SRelocationTable&) const
182{
183//AGV XmlObjMgt_Document& aDoc =
184//AGV (XmlObjMgt_Document&) theTarget.Element().getOwnerDocument();
185 XmlObjMgt_Document aDoc =
186 XmlObjMgt_Document (theTarget.Element().getOwnerDocument());
187
188 Handle(TNaming_NamedShape) aNamedShape =
189 Handle(TNaming_NamedShape)::DownCast(theSource);
190 TNaming_Evolution evol = aNamedShape->Evolution();
191
192 // Create arrays
193 Standard_Integer NbShapes = 0;
194 TNaming_Iterator SItr (aNamedShape);
195 while (SItr.More()) {
196 NbShapes++;
197 SItr.Next ();
198 }
199
200 BRepTools_ShapeSet& aShapeSet = (BRepTools_ShapeSet&) myShapeSet;
201 XmlMNaming_Array1OfShape1 OldPShapes (1,NbShapes), NewPShapes (1,NbShapes);
202
203 OldPShapes.CreateArrayElement (theTarget, ::OldsString());
204 NewPShapes.CreateArrayElement (theTarget, ::NewsString());
205
206 // Fill arrays
207 Standard_Integer i = 1;
208 TNaming_Iterator SIterator(aNamedShape);
209 while (SIterator.More())
210 {
211 const TopoDS_Shape& OldShape = SIterator.OldShape();
212 const TopoDS_Shape& NewShape = SIterator.NewShape();
213
214 if ( evol != TNaming_PRIMITIVE )
215 {
216 XmlMNaming_Shape1 anOldPShape (aDoc);
217 ::doTranslate (OldShape, anOldPShape, aShapeSet);
218 OldPShapes.SetValue (i, anOldPShape.Element());
219 }
220
221 if (evol != TNaming_DELETE)
222 {
223 XmlMNaming_Shape1 aNewPShape (aDoc);
224 ::doTranslate (NewShape, aNewPShape, aShapeSet);
225 NewPShapes.SetValue (i, aNewPShape.Element());
226 }
227 i++;
228 SIterator.Next();
229 }
230
231 theTarget.Element().setAttribute (::StatusString(), EvolutionString(evol));
232 Standard_Integer aVersion = aNamedShape -> Version();
233 if (aVersion != 0)
234 theTarget.Element().setAttribute (::VersionString(), aVersion);
235}
236
237//=======================================================================
238//function : EvolutionEnum
239//purpose : static
240//=======================================================================
241
242static const XmlObjMgt_DOMString& EvolutionString(const TNaming_Evolution i)
243{
244 switch(i) {
245 case TNaming_PRIMITIVE : return ::EvolPrimitiveString();
246 case TNaming_GENERATED : return ::EvolGeneratedString();
247 case TNaming_MODIFY : return ::EvolModifyString();
248 case TNaming_DELETE : return ::EvolDeleteString();
249 case TNaming_SELECTED : return ::EvolSelectedString();
566f8441 250 case TNaming_REPLACE : return ::EvolModifyString(); // case TNaming_REPLACE : return ::EvolReplaceString(); for compatibility
7fd59977 251 default:
252 Standard_DomainError::Raise("TNaming_Evolution; enum term unknown");
253 }
254 static XmlObjMgt_DOMString aNullString;
255 return aNullString; // To avoid compilation error message.
256}
257
258//=======================================================================
259//function : EvolutionEnum
260//purpose : static
261//=======================================================================
262
263static TNaming_Evolution EvolutionEnum (const XmlObjMgt_DOMString& theString)
264{
265 TNaming_Evolution aResult = TNaming_PRIMITIVE;
266 if (theString.equals (::EvolPrimitiveString()) == Standard_False) {
267 if (theString.equals (::EvolGeneratedString()))
268 aResult = TNaming_GENERATED;
269 else if (theString.equals (::EvolModifyString()))
270 aResult = TNaming_MODIFY;
271 else if (theString.equals (::EvolDeleteString()))
272 aResult = TNaming_DELETE;
273 else if (theString.equals (::EvolSelectedString()))
274 aResult = TNaming_SELECTED;
275 else if (theString.equals (::EvolReplaceString()))
1ec8a59e 276 aResult = TNaming_MODIFY; // for compatibility //TNaming_REPLACE;
7fd59977 277 else
278 Standard_DomainError::Raise
279 ("TNaming_Evolution; string value without enum term equivalence");
280 }
281 return aResult;
282}
283
284//=======================================================================
285//function : doTranslate
286//purpose : shape storage to XML
287//=======================================================================
288
289static void doTranslate (const TopoDS_Shape& theShape,
290 XmlMNaming_Shape1& theResult,
291 BRepTools_ShapeSet& theShapeSet)
292{
293 // Check for empty shape
294 if (theShape.IsNull()) return;
295
296 // Add to shape set both TShape and Location contained in theShape
297 const Standard_Integer aTShapeId = theShapeSet.Add (theShape);
298 const Standard_Integer aLocId =
299 theShapeSet.Locations().Index (theShape.Location());
300
301 // Fill theResult with shape parameters: TShape ID, Location, Orientation
302 theResult.SetShape (aTShapeId, aLocId, theShape.Orientation());
303
304 if (theShape.ShapeType() == TopAbs_VERTEX)
305 {
306 theResult.SetVertex(theShape);
307 }
308}
309
310//=======================================================================
311//function : doTranslate
312//purpose : shape retrieval from XML
313//=======================================================================
314
315static int doTranslate (const XmlMNaming_Shape1& thePShape,
316 TopoDS_Shape& theResult,
317 BRepTools_ShapeSet& theShapeSet)
318{
319 const Standard_Integer aShapeId = thePShape.TShapeId();
320
321 // Read TShape and Orientation
322 if (aShapeId <= 0 || aShapeId > theShapeSet.NbShapes())
323 return 1;
324 theResult.TShape (theShapeSet.Shape(aShapeId).TShape());
325 theResult.Orientation (thePShape.Orientation());
326 theResult.Location (theShapeSet.Locations().Location (thePShape.LocId()));
327
328 return 0;
329}
330
331//=======================================================================
332//function : ReadShapeSection
333//purpose :
334//=======================================================================
335
336void XmlMNaming_NamedShapeDriver::ReadShapeSection
337 (const XmlObjMgt_Element& theElement)
338{
339 XmlObjMgt_Element anElement =
340 XmlObjMgt::FindChildByName (theElement, ::ShapesString());
341 if (anElement != NULL) {
342 for (LDOM_Node aNode = anElement.getFirstChild();
343 aNode != NULL;
344 aNode = anElement.getNextSibling())
345 {
346 if (aNode.getNodeType() == LDOM_Node::TEXT_NODE) {
fd03ee4b 347 LDOMString aData = aNode.getNodeValue();
7fd59977 348 #ifdef USE_STL_STREAM
349 std::stringstream aStream (std::string(aData.GetString()));
350 #else
351 istrstream aStream (Standard_CString(aData.GetString()));
352 #endif
353 myShapeSet.Clear();
354 myShapeSet.Read (aStream);
355 break;
356 }
357 }
358 }
359}
360
361//=======================================================================
362//function : WriteShapeSection
363//purpose :
364//=======================================================================
365
366void XmlMNaming_NamedShapeDriver::WriteShapeSection
367 (XmlObjMgt_Element& theElement)
368{
369 // Create "shapes" element and append it as child
370 XmlObjMgt_Document aDoc = theElement.getOwnerDocument();
371 XmlObjMgt_Element anElement = aDoc.createElement (::ShapesString());
372 theElement.appendChild (anElement);
373
374 // Add text to the "shapes" element
375 if (myShapeSet.NbShapes() > 0) {
376 myShapeSet.SetFormatNb(2);
377 LDOM_OSStream aStream (1024);
378// ostrstream aStream;
379// aStream.rdbuf() -> setbuf (0, 16380);
380 myShapeSet.Write (aStream);
381 aStream << ends;
382 char * aStr = (char *)aStream.str();
383 LDOM_Text aText = aDoc.createTextNode (aStr);
384 delete [] aStr;
385 aText.SetValueClear(); // There are no characters '<' and '&' and like
386// aStream.rdbuf() -> freeze(0); // release the buffer
387 anElement.appendChild (aText);
388 // Clear the shape set to avoid appending to it on the next write
389 BRepTools_ShapeSet& aShapeSet = (BRepTools_ShapeSet&) myShapeSet;
390 aShapeSet.Clear();
391 }
392}
393
394//=======================================================================
395//function : Clear
396//purpose :
397//=======================================================================
398
399void XmlMNaming_NamedShapeDriver::Clear()
400{
401 myShapeSet.Clear();
402}