1 // A group of 2D Canvas elements
3 // Copyright (C) 2012 Thomas Geymayer <tomgey@gmail.com>
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Library General Public
7 // License as published by the Free Software Foundation; either
8 // version 2 of the License, or (at your option) any later version.
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Library General Public License for more details.
15 // You should have received a copy of the GNU Library General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 #ifndef CANVAS_GROUP_HXX_
20 #define CANVAS_GROUP_HXX_
22 #include "CanvasElement.hxx"
35 typedef std::list< std::pair< const SGPropertyNode*,
40 Group( const CanvasWeakPtr& canvas,
41 const SGPropertyNode_ptr& node,
42 const Style& parent_style = Style(),
43 Element* parent = 0 );
46 ElementPtr createChild( const std::string& type,
47 const std::string& id = "" );
48 ElementPtr getChild(const SGPropertyNode* node);
51 * Get first child with given id (breadth-first search)
53 * @param id Id (value if property node 'id') of element
55 ElementPtr getElementById(const std::string& id);
57 virtual void update(double dt);
59 virtual bool traverse(EventVisitor& visitor);
63 typedef std::map<std::string, ElementFactory> ChildFactories;
65 ChildFactories _child_factories;
68 virtual void childAdded(SGPropertyNode * child);
69 virtual void childRemoved(SGPropertyNode * child);
70 virtual void childChanged(SGPropertyNode * child);
72 void handleZIndexChanged(SGPropertyNode* node, int z_index);
74 ChildList::iterator findChild(const SGPropertyNode* node);
78 } // namespace simgear
80 #endif /* CANVAS_GROUP_HXX_ */