101 lines
2.8 KiB
C++
101 lines
2.8 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osgGA/GUIEventHandler>
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#include <osgGA/EventVisitor>
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using namespace osgGA;
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void GUIEventHandler::operator()(osg::Node* node, osg::NodeVisitor* nv)
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{
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osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(nv);
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if (ev && ev->getActionAdapter() && !ev->getEvents().empty())
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{
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for(osgGA::EventQueue::Events::iterator itr = ev->getEvents().begin();
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itr != ev->getEvents().end();
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++itr)
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{
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if (handle(*(*itr), *(ev->getActionAdapter()), node, nv))
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{
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return;
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}
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}
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}
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traverse(node,nv);
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}
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void GUIEventHandler::event(osg::NodeVisitor* nv, osg::Drawable* drawable)
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{
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osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(nv);
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if (ev && ev->getActionAdapter() && !ev->getEvents().empty())
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{
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for(osgGA::EventQueue::Events::iterator itr = ev->getEvents().begin();
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itr != ev->getEvents().end();
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++itr)
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{
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handle(*(*itr), *(ev->getActionAdapter()), drawable, nv);
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}
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}
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}
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void CompositeGUIEventHandler::getUsage(osg::ApplicationUsage& usage) const
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{
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for (ChildList::const_iterator itr=_children.begin();
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itr!=_children.end();
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++itr)
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{
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(*itr)->getUsage(usage);
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}
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}
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bool CompositeGUIEventHandler::handle(const GUIEventAdapter& ea,GUIActionAdapter& aa, osg::Object* object, osg::NodeVisitor* nv)
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{
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bool result=false;
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for (ChildList::iterator itr=_children.begin();
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itr!=_children.end();
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++itr)
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{
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result |= (*itr)->handle(ea, aa, object, nv);
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}
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return result;
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}
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bool CompositeGUIEventHandler::addChild(GUIEventHandler *child)
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{
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if (child && !containsNode(child))
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{
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// note ref_ptr<> automatically handles incrementing child's reference count.
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_children.push_back(child);
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return true;
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}
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else return false;
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}
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bool CompositeGUIEventHandler::removeChild(GUIEventHandler *child)
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{
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ChildList::iterator itr = findChild(child);
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if (itr!=_children.end())
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{
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// note ref_ptr<> automatically handles decrementing child's reference count.
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_children.erase(itr);
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return true;
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}
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else return false;
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}
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