ParseObj.cc 7.95 KB
Newer Older
Jan Möbius's avatar
 
Jan Möbius committed
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
//=============================================================================
//
//                               OpenFlipper
//        Copyright (C) 2008 by Computer Graphics Group, RWTH Aachen
//                           www.openflipper.org
//
//-----------------------------------------------------------------------------
//
//                                License
//
//  OpenFlipper is free software: you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  OpenFlipper is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public License
//  along with OpenFlipper.  If not, see <http://www.gnu.org/licenses/>.
//
//-----------------------------------------------------------------------------
//
//   $Revision$
//   $Author$
//   $Date$
//
//=============================================================================




//=============================================================================
//
//  CLASS Core - IMPLEMENTATION
//
//=============================================================================


//== INCLUDES =================================================================

// -------------------- mview
#include "Core.hh"
// -------------------- ACG
#include <ACG/Scenegraph/DrawModes.hh>

#include <OpenFlipper/common/GlobalOptions.hh>
#include <OpenFlipper/common/RecentFiles.hh>

#include <OpenFlipper/BasePlugin/PluginFunctions.hh>

#include <QFile>

#include <OpenFlipper/ACGHelper/DrawModeConverter.hh>

//== IMPLEMENTATION ==========================================================


void Core::openObjFile(QString _filename)
{
  std::string fname = _filename.toStdString();
  std::fstream in(fname.c_str(), std::ios_base::in);

  if (!in)
  {
    emit log(LOGERR,"Cannot open to obj file" + _filename);
    return;
  }

  if ( OpenFlipper::Options::gui() )
  {
    coreWidget_->statusMessage( "Loading obj File " + _filename + " ...");
    coreWidget_->setStatus(ApplicationStatus::BLOCKED );
  }

  OpenFlipper::Options::openingIni(true);


  while(!in.eof())
  {
    std::string keyword;
    in >> keyword;

    // Parse for external files to open
    if (keyword.compare("call") == 0)
    {
      // open external file
      std::string file;
      in >> file;

      QString path(file.c_str());

      //check if path is relative
      if (path.startsWith( "." + OpenFlipper::Options::dirSeparator() ))
      {
        //check if _filename contains a path
        if (_filename.section(OpenFlipper::Options::dirSeparator(), 0, -2) != "")
        {
          path.remove(0,1); // remove .
          path = _filename.section(OpenFlipper::Options::dirSeparator(), 0, -2) + path;
        }
      }

      // preprocess file
      preprocessObjFile(path);
    }
//     else
//       std::cout << "ObjParser: unknown keyword " << keyword << std::endl;

  }


  OpenFlipper::Options::openingIni(false);

  resetScenegraph();

  if ( OpenFlipper::Options::gui() )
  {
    coreWidget_->statusMessage( "Loading obj File " + _filename + " ... done", 4000);
    coreWidget_->setStatus(ApplicationStatus::READY );
  }

  in.close();

}


//-----------------------------------------------------------------------------


void Core::preprocessObjFile(QString _filename)
{
  bool newActiveObject = false;

  std::cout << "[preprocessObjFile] filename: " << _filename.toStdString() << std::endl;

  QString path = _filename;

  //check if path is relative
  if (path.startsWith( "." + OpenFlipper::Options::dirSeparator() ))
  {
    //check if _filename contains a path
    if (_filename.section(OpenFlipper::Options::dirSeparator(), 0, -2) != "")
    {
      path.remove(0,1); // remove .
      path = _filename.section(OpenFlipper::Options::dirSeparator(), 0, -2) + path;
    }
  }


  // find out data type
  DataType dataType;

  std::string fname = _filename.toStdString();
  std::fstream in(fname.c_str(), std::ios_base::in);
  if (!in)
  {
    emit log(LOGERR,"Cannot open to obj file" + _filename);
    return;
  }


  std::string token;
  std::string tmp;

  bool typeFound = false;
  bool meshFound = false;

  while ( (!typeFound) && (!in.eof()) )
  {
    // read next token
    in >> token;

    if (token == "v") // ignore vertices, since they occur in many objects
      continue;

    else if (token == "f")
    {
      // we have found a mesh. now, find out if its a poly or a triangle mesh
      bool nextLine = false;
      int numVerticesPerFace = 0;

      meshFound = true;

      while((!nextLine) && (!in.eof()))
      {
        in >> tmp;
        if (tmp == "f")  nextLine = true;
        else ++numVerticesPerFace;
      }

      if (numVerticesPerFace > 3)
      {
        dataType = DATA_POLY_MESH;
        typeFound = true;
      }
    }

    // all faces processed and no poly mesh found
//     else if ((meshFound) && (typeFound == false))
//     {
//       dataType = DATA_TRIANGLE_MESH;
//       typeFound = true;
//     }

    // curve/surface type
    else if (token == "cstype")
    {
      in >> tmp;
      if (tmp == "bspline")
      {
        dataType = DATA_BSPLINE_CURVE;
        typeFound = true;
      }
    }

  }

  if (!typeFound)
  {
    dataType = DATA_TRIANGLE_MESH;
    emit log(LOGWARN, "Unable to get DataType for object " +  _filename + " - assuming Triangle Mesh" );
  }


  if (dataType == DATA_POLY_MESH)
    std::cout << _filename.toStdString() << " is of type DATA_POLY_MESH" << std::endl;
  else if (dataType == DATA_TRIANGLE_MESH)
    std::cout << _filename.toStdString() << " is of type DATA_TRIANGLE_MESH" << std::endl;
  else if  (dataType == DATA_BSPLINE_CURVE)
    std::cout << _filename.toStdString() << " is of type DATA_BSPLINE_CURVE" << std::endl;
  else
    std::cout << "no data type found " << std::endl;


  int newObjectId = loadObject(dataType, path);

  BaseObject* object = objectRoot_->childExists( newObjectId );
  if ( object == 0 )
    emit log(LOGERR,"Unable to open Object " + path);

  if ( newActiveObject )
    emit activeObjectChanged();
}

//-----------------------------------------------------------------------------


251
void Core::writeObjFile(QString _filename, bool _relativePaths, bool _targetOnly)
Jan Möbius's avatar
 
Jan Möbius committed
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
{
  // open file
  std::string fname = _filename.toStdString();
  std::fstream out(fname.c_str(), std::ios_base::out);
  if (!out)
  {
    emit log(LOGERR,"Cannot open to obj file" + _filename);
    return;
  }


  if ( OpenFlipper::Options::gui() )
  {
    coreWidget_->statusMessage( "Saving obj File " + _filename + " ...");
    coreWidget_->setStatus(ApplicationStatus::BLOCKED );
  }

269
270
271
272
273
  PluginFunctions::IteratorRestriction restriction;
  if ( _targetOnly )
    restriction = PluginFunctions::TARGET_OBJECTS;
  else 
    restriction = PluginFunctions::ALL_OBJECTS;
Jan Möbius's avatar
 
Jan Möbius committed
274
275

  // write all objects to a separate obj file and save external references in the global obj file
276
  for ( PluginFunctions::ObjectIterator o_it (restriction) ;
Jan Möbius's avatar
 
Jan Möbius committed
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
                                        o_it != PluginFunctions::objects_end(); ++o_it)
  {
    QString file = o_it->path() + OpenFlipper::Options::dirSeparator() + o_it->name();

    if (QFile(file).exists())
    {
      // Modify filename if relativePaths are wanted
      if (_relativePaths)
      {
        int prefixLen = _filename.section(OpenFlipper::Options::dirSeparator(),0,-2).length();
        file.remove(0, prefixLen);
        file = "." + file;
      }

      // save to global inifile
      out << "call " << file.toStdString() << "\n";
    }
  }

  out.close();

  if ( OpenFlipper::Options::gui() )
  {
    coreWidget_->statusMessage( "Saving obj File " + _filename + " ... done", 4000);
    coreWidget_->setStatus(ApplicationStatus::READY );
  }

}


//=============================================================================