Helper for property controlled subsystems

- Subsystem which manages a list of elements which are controlled through the property tree. - Fix a ShivaVG compiler warning. - Add some helper functions to trigger property removed/add events for a whole property tree.
2012-10-29 16:11:35 +01:00
parent 4854a9e320
commit 5330dc34bc
8 changed files with 365 additions and 14 deletions
@@ -0,0 +1,49 @@
+// Base class for elements of property controlled subsystems
+//
+// Copyright (C) 2012  Thomas Geymayer <tomgey@gmail.com>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#include "PropertyBasedElement.hxx"
+
+namespace simgear
+{
+
+  //------------------------------------------------------------------------------
+  PropertyBasedElement::PropertyBasedElement(SGPropertyNode* node):
+    _node(node)
+  {
+    _node->addChangeListener(this);
+  }
+
+  //------------------------------------------------------------------------------
+  PropertyBasedElement::~PropertyBasedElement()
+  {
+    _node->removeChangeListener(this);
+  }
+
+  //------------------------------------------------------------------------------
+  SGConstPropertyNode_ptr PropertyBasedElement::getProps() const
+  {
+    return _node;
+  }
+
+  //------------------------------------------------------------------------------
+  SGPropertyNode_ptr PropertyBasedElement::getProps()
+  {
+    return _node;
+  }
+
+} // namespace simgear