The GtkRadiant sources as originally released under the GPL license.

plugins/entity/model.h

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+/*
+Copyright (C) 2001-2006, William Joseph.
+All Rights Reserved.
+
+This file is part of GtkRadiant.
+
+GtkRadiant 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.
+
+GtkRadiant 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 GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#if !defined(INCLUDED_MODEL_H)
+#define INCLUDED_MODEL_H
+
+#include "entitylib.h"
+#include "traverselib.h"
+#include "generic/callback.h"
+#include "stream/stringstream.h"
+#include "os/path.h"
+#include "moduleobserver.h"
+
+class Model : public ModuleObserver
+{
+  ResourceReference m_resource;
+  scene::Traversable& m_traverse;
+  scene::Node* m_node;
+  Callback m_modelChanged;
+
+public:
+  Model(scene::Traversable& traversable, const Callback& modelChanged)
+    : m_resource(""), m_traverse(traversable), m_node(0), m_modelChanged(modelChanged)
+  {
+    m_resource.attach(*this);
+  }
+  ~Model()
+  {
+    m_resource.detach(*this);
+  }
+
+  void realise()
+  {
+    m_resource.get()->load();
+    m_node = m_resource.get()->getNode();
+    if(m_node != 0)
+    {
+      m_traverse.insert(*m_node);
+    }
+  }
+  void unrealise()
+  {
+    if(m_node != 0)
+    {
+      m_traverse.erase(*m_node);
+    }
+  }
+  
+  void modelChanged(const char* value)
+  {
+    StringOutputStream cleaned(string_length(value));
+    cleaned << PathCleaned(value);
+    m_resource.detach(*this);
+    m_resource.setName(cleaned.c_str());
+    m_resource.attach(*this);
+    m_modelChanged();
+  }
+  typedef MemberCaller1<Model, const char*, &Model::modelChanged> ModelChangedCaller;
+
+  const char* getName() const
+  {
+    return m_resource.getName();
+  }
+  scene::Node* getNode() const
+  {
+    return m_node;
+  }
+};
+
+class SingletonModel
+{
+  TraversableNode m_traverse;
+  Model m_model;
+public:
+  SingletonModel()
+    : m_model(m_traverse, Callback())
+  {
+  }
+
+  void attach(scene::Traversable::Observer* observer)
+  {
+    m_traverse.attach(observer);
+  }
+  void detach(scene::Traversable::Observer* observer)
+  {
+    m_traverse.detach(observer);
+  }
+
+  scene::Traversable& getTraversable()
+  {
+    return m_traverse;
+  }
+
+  void modelChanged(const char* value)
+  {
+    m_model.modelChanged(value);
+  }
+  typedef MemberCaller1<SingletonModel, const char*, &SingletonModel::modelChanged> ModelChangedCaller;
+
+  scene::Node* getNode() const
+  {
+    return m_model.getNode();
+  }
+};
+
+#endif