FGFS-4.1/OpenSceneGraph
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Implemented Widget::handle, handleImplementation, traverse and travseImplementation() wrappers to enable them to be extended via scripting

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This commit is contained in:
Robert Osfield
2014-02-10 18:07:26 +00:00
parent 31e98b51df
commit e21865ee33
2 changed files with 75 additions and 10 deletions
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28
src/osgGA/Widget.cpp
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@@ -190,6 +190,14 @@ void Widget::traverse(osg::NodeVisitor& nv)
osg::CallbackObject* co = osg::getCallbackObject(this, "traverse");
if (co)
{
// currently lua scripting takes a ref count so messes up handling of NodeVisitor's created on stack,
// so don't attempt to call the sctipt.
if (nv.referenceCount()==0)
{
traverseImplementation(nv);
return;
}
osg::Parameters inputParameters, outputParameters;
inputParameters.push_back(&nv);
co->run(this, inputParameters, outputParameters);
@@ -204,6 +212,7 @@ void Widget::traverseImplementation(osg::NodeVisitor& nv)
{
if (!_graphicsInitialized && nv.getVisitorType()!=osg::NodeVisitor::CULL_VISITOR) createGraphics();
osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(&nv);
if (ev)
{
@@ -236,18 +245,17 @@ bool Widget::handle(osgGA::EventVisitor* ev, osgGA::Event* event)
osg::CallbackObject* co = osg::getCallbackObject(this, "handle");
if (co)
{
// currently lua scripting takes a ref count so messes up handling of NodeVisitor's created on stack,
// so don't attempt to call the sctipt.
if (ev->referenceCount()==0)
{
return handleImplementation(ev, event);
}
osg::Parameters inputParameters, outputParameters;
inputParameters.push_back(ev);
inputParameters.push_back(event);
if (co->run(this, inputParameters, outputParameters))
{
if (outputParameters.size()>=1)
{
return true;
}
}
return false;
return co->run(this, inputParameters, outputParameters) && outputParameters.size()>=1;
}
else
{
@@ -255,7 +263,7 @@ bool Widget::handle(osgGA::EventVisitor* ev, osgGA::Event* event)
}
}
bool Widget::handleImplementation(osgGA::EventVisitor* /*ev*/, osgGA::Event* /*event*/)
bool Widget::handleImplementation(osgGA::EventVisitor* ev, osgGA::Event* event)
{
return false;
}