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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 #ifdef HAVE_CONFIG_H
18 #  include <simgear_config.h>
19 #endif
20
21 #include <osgDB/ReadFile>
22
23 #include <simgear/debug/logstream.hxx>
24 #include <simgear/structure/OSGVersion.hxx>
25
26 #include "modellib.hxx"
27 #include "SGReaderWriterXMLOptions.hxx"
28 #include "SGPagedLOD.hxx"
29
30 #include <simgear/math/SGMath.hxx>
31
32 using namespace osg;
33 using namespace simgear;
34
35 SGPagedLOD::SGPagedLOD()
36         : PagedLOD()
37 {
38 }
39
40 SGPagedLOD::~SGPagedLOD()
41 {
42     //SG_LOG(SG_GENERAL, SG_ALERT, "SGPagedLOD::~SGPagedLOD(" << getFileName(0) << ")");
43 }
44
45 SGPagedLOD::SGPagedLOD(const SGPagedLOD& plod,const CopyOp& copyop)
46         : osg::PagedLOD(plod, copyop),
47         _readerWriterOptions(plod._readerWriterOptions)
48 {
49 }
50
51 bool SGPagedLOD::addChild(osg::Node *child)
52 {
53     if (!PagedLOD::addChild(child))
54         return false;
55
56     setRadius(getBound().radius());
57     setCenter(getBound().center());
58     return true;
59 }
60
61 void SGPagedLOD::forceLoad(osgDB::DatabasePager *dbp)
62 {
63     //SG_LOG(SG_GENERAL, SG_ALERT, "SGPagedLOD::forceLoad(" <<
64     //getFileName(getNumChildren()) << ")");
65     unsigned childNum = getNumChildren();
66     setTimeStamp(childNum, 0);
67     double priority=1.0;
68     dbp->requestNodeFile(getFileName(childNum),this,priority,0,
69                          getDatabaseRequest(childNum),
70                          _readerWriterOptions.get());
71 }
72