2 Copyright (C) 2011 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __gtk_ardour_gui_object_h__
21 #define __gtk_ardour_gui_object_h__
26 #include <boost/variant.hpp>
28 #include "pbd/xml++.h"
31 class GUIObjectState {
36 XMLNode& get_state () const;
37 int set_state (const XMLNode&);
39 static const std::string xml_node_name;
40 void load (const XMLNode&);
42 GUIObjectState& operator= (const GUIObjectState& other);
45 typedef boost::variant<int64_t,std::string> Variant;
46 typedef std::map<std::string,Variant> PropertyMap;
47 typedef std::map<std::string,PropertyMap> StringPropertyMap;
49 StringPropertyMap _property_maps;
51 template<typename T> T get (const std::string& id, const std::string& prop_name, const T& type_determination_placeholder, bool* empty = 0) {
52 StringPropertyMap::iterator i = _property_maps.find (id);
54 if (i == _property_maps.end()) {
61 const PropertyMap& pmap (i->second);
62 PropertyMap::const_iterator p = pmap.find (prop_name);
64 if (p == pmap.end()) {
68 return boost::get<T> (p->second);
74 int get_int (const std::string& id, const std::string& prop_name) {
76 return get (id, prop_name, i);
79 std::string get_string (const std::string& id, const std::string& prop_name) {
81 return get (id, prop_name, s);
84 template<typename T> void set (const std::string& id, const std::string& prop_name, const T& val) {
85 StringPropertyMap::iterator i = _property_maps.find (id);
87 if (i != _property_maps.end()) {
88 i->second[prop_name] = val;
89 // std::cerr << id << " REset " << prop_name << " = [" << val << "]\n";
91 _property_maps[id] = PropertyMap();
92 _property_maps[id][prop_name] = val;
93 // std::cerr << id << " set " << prop_name << " = [" << val << "]\n";
100 #endif /* __gtk_ardour_gui_object_h__ */