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"
36 static const std::string xml_node_name;
37 void load (const XMLNode&);
39 int set_state (const XMLNode&);
40 XMLNode& get_state () const;
42 /** Get a string from our state.
43 * @param id property of Object node to look for.
44 * @param prop_name name of the Object property to return.
45 * @param empty if non-0, filled in with true if the property is currently non-existant, otherwise false.
46 * @return value of property `prop_name', or empty.
48 std::string get_string (const std::string& id, const std::string& prop_name, bool* empty = 0);
50 template<typename T> void set_property (const std::string& id, const std::string& prop_name, const T& val) {
51 XMLNode* child = get_or_add_node (id);
54 child->add_property (prop_name.c_str(), s.str());
57 /** Remove node with provided id.
58 * @param id property of Object node to look for.
60 void remove_node (const std::string& id);
61 std::list<std::string> all_ids () const;
63 XMLNode* get_or_add_node (const std::string &);
65 static XMLNode* get_node (const XMLNode *, const std::string &);
66 static XMLNode* get_or_add_node (XMLNode *, const std::string &);
71 // ideally we'd use a O(1) hash table here,
72 // but O(log(N)) is fine already.
73 std::map <std::string, XMLNode*> object_map;
76 #endif /* __gtk_ardour_gui_object_h__ */