1 // Copyright (C) 2013 James Turner//
2 // This program is free software; you can redistribute it and/or
3 // modify it under the terms of the GNU General Public License as
4 // published by the Free Software Foundation; either version 2 of the
5 // License, or (at your option) any later version.
7 // This program is distributed in the hope that it will be useful, but
8 // WITHOUT ANY WARRANTY; without even the implied warranty of
9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 // General Public License for more details.
12 // You should have received a copy of the GNU General Public License
13 // along with this program; if not, write to the Free Software
14 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 #ifndef __NASALSYS_PRIVATE_HXX
17 #define __NASALSYS_PRIVATE_HXX
19 #include <simgear/props/props.hxx>
20 #include <simgear/nasal/nasal.h>
21 #include <simgear/xml/easyxml.hxx>
23 class FGNasalListener : public SGPropertyChangeListener {
25 FGNasalListener(SGPropertyNode* node, naRef code, FGNasalSys* nasal,
26 int key, int id, int init, int type);
28 virtual ~FGNasalListener();
29 virtual void valueChanged(SGPropertyNode* node);
30 virtual void childAdded(SGPropertyNode* parent, SGPropertyNode* child);
31 virtual void childRemoved(SGPropertyNode* parent, SGPropertyNode* child);
34 bool changed(SGPropertyNode* node);
35 void call(SGPropertyNode* which, naRef mode);
37 friend class FGNasalSys;
38 SGPropertyNode_ptr _node;
49 std::string _last_string;
53 class NasalXMLVisitor : public XMLVisitor {
55 NasalXMLVisitor(naContext c, int argc, naRef* args);
56 virtual ~NasalXMLVisitor() { naFreeContext(_c); }
58 virtual void startElement(const char* tag, const XMLAttributes& a);
59 virtual void endElement(const char* tag);
60 virtual void data(const char* str, int len);
61 virtual void pi(const char* target, const char* data);
64 void call(naRef func, int num, naRef a = naNil(), naRef b = naNil());
65 naRef make_string(const char* s, int n = -1);
68 naRef _start_element, _end_element, _data, _pi;
71 #endif // of __NASALSYS_PRIVATE_HXX