simgear/scene/model/SGPagedLOD.cxx

   1 // Copyright (C) 2008 Till Busch buti@bux.at
   2 //
   3 // This program is free software; you can redistribute it and/or
   4 // modify it under the terms of the GNU General Public License as
   5 // published by the Free Software Foundation; either version 2 of the
   6 // License, or (at your option) any later version.
   7 //
   8 // This program is distributed in the hope that it will be useful, but
   9 // WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11 // General Public License for more details.
  12 //
  13 // You should have received a copy of the GNU General Public License
  14 // along with this program; if not, write to the Free Software
  15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  16
  17 #include <osgDB/ReadFile>
  18
  19 #include <simgear/debug/logstream.hxx>
  20 #include <simgear/structure/OSGVersion.hxx>
  21
  22 #include "modellib.hxx"
  23 #include "SGReaderWriterXMLOptions.hxx"
  24 #include "SGPagedLOD.hxx"
  25
  26 using namespace osg;
  27 using namespace simgear;
  28
  29 SGPagedLOD::SGPagedLOD()
  30         : PagedLOD()
  31 {
  32 }
  33
  34 SGPagedLOD::~SGPagedLOD()
  35 {
  36     //SG_LOG(SG_GENERAL, SG_ALERT, "SGPagedLOD::~SGPagedLOD(" << getFileName(0) << ")");
  37 }
  38
  39 SGPagedLOD::SGPagedLOD(const SGPagedLOD& plod,const CopyOp& copyop)
  40         : osg::PagedLOD(plod, copyop),
  41         _readerWriterOptions(plod._readerWriterOptions)
  42 {
  43 }
  44
  45 bool SGPagedLOD::addChild(osg::Node *child)
  46 {
  47     //SG_LOG(SG_GENERAL, SG_ALERT, "SGPagedLOD::addChild(" << getFileName(getNumChildren()) << ")");
  48     if (!PagedLOD::addChild(child))
  49         return false;
  50
  51     setRadius(getBound().radius());
  52     setCenter(getBound().center());
  53     SGReaderWriterXMLOptions* opts;
  54     opts = dynamic_cast<SGReaderWriterXMLOptions*>(_readerWriterOptions.get());
  55     if(opts)
  56     {
  57         osg::ref_ptr<SGModelData> d = opts->getModelData();
  58         if(d.valid())
  59             d->modelLoaded(getFileName(getNumChildren()-1), opts->getPropRoot(),
  60                            this);
  61     }
  62     return true;
  63 }
  64
  65 void SGPagedLOD::forceLoad(osgDB::DatabasePager *dbp)
  66 {
  67     //SG_LOG(SG_GENERAL, SG_ALERT, "SGPagedLOD::forceLoad(" <<
  68     //getFileName(getNumChildren()) << ")");
  69     unsigned childNum = getNumChildren();
  70     setTimeStamp(childNum, 0);
  71     double priority=1.0;
  72     dbp->requestNodeFile(getFileName(childNum),this,priority,0,
  73                          getDatabaseRequest(childNum),
  74                          _readerWriterOptions.get());
  75 }
  76