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/*
Copyright (C) 2011 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __gtk_ardour_gui_object_h__
#define __gtk_ardour_gui_object_h__
#include <map>
#include <string>
#include <boost/variant.hpp>
#include "pbd/xml++.h"
#include "pbd/id.h"
class GUIObjectState {
public:
GUIObjectState() {}
~GUIObjectState();
XMLNode& get_state () const;
int set_state (const XMLNode&);
static const std::string xml_node_name;
void load (const XMLNode&);
GUIObjectState& operator= (const GUIObjectState& other);
private:
typedef boost::variant<int64_t,std::string> Variant;
typedef std::map<std::string,Variant> PropertyMap;
typedef std::map<std::string,PropertyMap> StringPropertyMap;
StringPropertyMap _property_maps;
template<typename T> T get (const std::string& id, const std::string& prop_name, const T& type_determination_placeholder, bool* empty = 0) {
StringPropertyMap::iterator i = _property_maps.find (id);
if (i == _property_maps.end()) {
if (empty) {
*empty = true;
}
return T();
}
const PropertyMap& pmap (i->second);
PropertyMap::const_iterator p = pmap.find (prop_name);
if (p == pmap.end()) {
return T();
}
return boost::get<T> (p->second);
}
void clear_maps ();
public:
int get_int (const std::string& id, const std::string& prop_name) {
int i = 0;
return get (id, prop_name, i);
}
std::string get_string (const std::string& id, const std::string& prop_name) {
std::string s;
return get (id, prop_name, s);
}
template<typename T> void set (const std::string& id, const std::string& prop_name, const T& val) {
StringPropertyMap::iterator i = _property_maps.find (id);
if (i != _property_maps.end()) {
i->second[prop_name] = val;
// std::cerr << id << " REset " << prop_name << " = [" << val << "]\n";
} else {
_property_maps[id] = PropertyMap();
_property_maps[id][prop_name] = val;
// std::cerr << id << " set " << prop_name << " = [" << val << "]\n";
}
}
};
#endif /* __gtk_ardour_gui_object_h__ */
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