FGFS-4.1/OpenSceneGraph
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Further work osgViewer::Viewer and related classes.

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This commit is contained in:
Robert Osfield
2006-12-20 21:13:29 +00:00
parent 32821ebe4e
commit 2255771b74
18 changed files with 580 additions and 36 deletions
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51
src/osgViewer/View.cpp
View File

@@ -18,10 +18,21 @@
using namespace osgViewer;
class ActionAdapter : public osgGA::GUIActionAdapter
{
public:
virtual ~ActionAdapter() {}
virtual void requestRedraw() { /*osg::notify(osg::NOTICE)<<"requestRedraw()"<<std::endl;*/ }
virtual void requestContinuousUpdate(bool needed=true) { /*osg::notify(osg::NOTICE)<<"requestContinuousUpdate("<<needed<<")"<<std::endl;*/ }
virtual void requestWarpPointer(float x,float y) { osg::notify(osg::NOTICE)<<"requestWarpPointer("<<x<<","<<y<<")"<<std::endl; }
};
View::View()
{
// osg::notify(osg::NOTICE)<<"Constructing osgViewer::View"<<std::endl;
setEventQueue(new osgGA::EventQueue);
}
View::~View()
@@ -37,6 +48,20 @@ void View::setSceneData(osg::Node* node)
assignSceneDataToCameras();
}
void View::setCameraManipulator(osgGA::MatrixManipulator* manipulator)
{
_cameraManipulator = manipulator;
if (_cameraManipulator.valid() && getSceneData())
{
_cameraManipulator->setNode(getSceneData());
osg::ref_ptr<osgGA::GUIEventAdapter> dummyEvent = _eventQueue->createEvent();
ActionAdapter aa;
_cameraManipulator->home(*dummyEvent, aa);
}
}
void View::setUpViewAcrossAllScreens()
{
osg::GraphicsContext::GraphicsContext::WindowingSystemInterface* wsi = osg::GraphicsContext::getWindowingSystemInterface();
@@ -86,6 +111,11 @@ void View::setUpViewAcrossAllScreens()
else
{
double rotate_x = - double(numScreens-1) * 0.5 * fovx;
float inputRangeMinX = 0.0f;
float inputRangeMinY = 0.0f;
float maxHeight = 0.0f;
for(unsigned int i=0; i<numScreens; ++i, rotate_x += fovx)
{
@@ -111,6 +141,12 @@ void View::setUpViewAcrossAllScreens()
if (gw)
{
osg::notify(osg::NOTICE)<<" GraphicsWindow has been created successfully."<<gw<<std::endl;
gw->getEventQueue()->setUseFixedMouseInputRange(true);
gw->getEventQueue()->getCurrentEventState()->setInputRange(inputRangeMinX, inputRangeMinY, inputRangeMinX+float(width),inputRangeMinY+float(height) );
inputRangeMinX += float(width);
if (maxHeight < float(height)) maxHeight = float(height);
}
else
{
@@ -122,6 +158,9 @@ void View::setUpViewAcrossAllScreens()
addSlave(camera.get(), osg::Matrixd(), osg::Matrixd::rotate( rotate_x, 0.0, 1.0, 0.0));
}
getEventQueue()->setUseFixedMouseInputRange(true);
getEventQueue()->getCurrentEventState()->setInputRange(0.0f, 0.0, inputRangeMinX, maxHeight);
}
setUpRenderingSupport();
@@ -156,6 +195,16 @@ void View::assignSceneDataToCameras()
{
osg::Node* sceneData = _scene.valid() ? _scene->getSceneData() : 0;
if (_cameraManipulator.valid())
{
_cameraManipulator->setNode(sceneData);
osg::ref_ptr<osgGA::GUIEventAdapter> dummyEvent = _eventQueue->createEvent();
ActionAdapter aa;
_cameraManipulator->home(*dummyEvent, aa);
}
if (_camera.valid())
{
_camera->removeChildren(0,_camera->getNumChildren());

155
src/osgViewer/Viewer.cpp
View File

@@ -18,7 +18,19 @@
using namespace osgViewer;
Viewer::Viewer()
class ActionAdapter : public osgGA::GUIActionAdapter
{
public:
virtual ~ActionAdapter() {}
virtual void requestRedraw() { /*osg::notify(osg::NOTICE)<<"requestRedraw()"<<std::endl;*/ }
virtual void requestContinuousUpdate(bool needed=true) { /*osg::notify(osg::NOTICE)<<"requestContinuousUpdate("<<needed<<")"<<std::endl;*/ }
virtual void requestWarpPointer(float x,float y) { osg::notify(osg::NOTICE)<<"requestWarpPointer("<<x<<","<<y<<")"<<std::endl; }
};
Viewer::Viewer():
_firstFrame(true)
{
}
@@ -26,6 +38,20 @@ Viewer::~Viewer()
{
}
void Viewer::init()
{
osg::notify(osg::NOTICE)<<"Viewer::init()"<<std::endl;
osg::ref_ptr<osgGA::GUIEventAdapter> initEvent = _eventQueue->createEvent();
initEvent->setEventType(osgGA::GUIEventAdapter::FRAME);
if (_cameraManipulator.valid())
{
ActionAdapter aa;
_cameraManipulator->init(*initEvent, aa);
}
}
void Viewer::realize()
{
osg::notify(osg::NOTICE)<<"Viewer::realize()"<<std::endl;
@@ -49,22 +75,141 @@ void Viewer::realize()
void Viewer::frame()
{
osg::notify(osg::NOTICE)<<"Viewer::frame() not implemented yet."<<std::endl;
if (_firstFrame)
{
init();
_firstFrame = false;
}
frameEventTraversal();
frameUpdateTraversal();
frameCullTraversal();
frameDrawTraversal();
}
void Viewer::frameAdvance()
{
osg::notify(osg::NOTICE)<<"Viewer::frameAdvance() not implemented yet."<<std::endl;
// osg::notify(osg::NOTICE)<<"Viewer::frameAdvance()."<<std::endl;
_scene->frameAdvance();
}
void Viewer::frameEventTraversal()
{
osg::notify(osg::NOTICE)<<"Viewer::frameEventTraversal() not implemented yet."<<std::endl;
// osg::notify(osg::NOTICE)<<"Viewer::frameEventTraversal()."<<std::endl;
// need to copy events from the GraphicsWindow's into local EventQueue;
osgGA::EventQueue::Events events;
if (_camera.valid() && _camera->getGraphicsContext())
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(_camera->getGraphicsContext());
if (gw)
{
gw->checkEvents();
gw->getEventQueue()->takeEvents(events);
}
}
for(unsigned int i=0; i<getNumSlaves(); ++i)
{
Slave& slave = getSlave(i);
if (slave._camera.valid() && slave._camera->getGraphicsContext())
{
osgViewer::GraphicsWindow* gw = dynamic_cast<osgViewer::GraphicsWindow*>(slave._camera->getGraphicsContext());
if (gw)
{
gw->checkEvents();
gw->getEventQueue()->takeEvents(events);
}
}
}
_eventQueue->frame( _scene->getFrameStamp()->getReferenceTime() );
_eventQueue->takeEvents(events);
osgGA::GUIEventAdapter* eventState = getEventQueue()->getCurrentEventState();
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
event->setInputRange(eventState->getXmin(), eventState->getYmin(), eventState->getXmax(), eventState->getYmax());
}
#if 0
// osg::notify(osg::NOTICE)<<"Events "<<events.size()<<std::endl;
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
switch(event->getEventType())
{
case(osgGA::GUIEventAdapter::PUSH):
osg::notify(osg::NOTICE)<<" PUSH "<<event->getButton()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
break;
case(osgGA::GUIEventAdapter::RELEASE):
osg::notify(osg::NOTICE)<<" RELEASE "<<event->getButton()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
break;
case(osgGA::GUIEventAdapter::DRAG):
osg::notify(osg::NOTICE)<<" DRAG "<<event->getButtonMask()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
break;
case(osgGA::GUIEventAdapter::MOVE):
osg::notify(osg::NOTICE)<<" MOVE "<<event->getButtonMask()<<" x="<<event->getX()<<" y="<<event->getY()<<std::endl;
break;
case(osgGA::GUIEventAdapter::SCROLL):
osg::notify(osg::NOTICE)<<" SCROLL "<<event->getScrollingMotion()<<std::endl;
break;
case(osgGA::GUIEventAdapter::KEYDOWN):
osg::notify(osg::NOTICE)<<" KEYDOWN '"<<(char)event->getKey()<<"'"<<std::endl;
break;
case(osgGA::GUIEventAdapter::KEYUP):
osg::notify(osg::NOTICE)<<" KEYUP '"<<(char)event->getKey()<<"'"<<std::endl;
break;
case(osgGA::GUIEventAdapter::FRAME):
// osg::notify(osg::NOTICE)<<" FRAME "<<std::endl;
break;
default:
// osg::notify(osg::NOTICE)<<" Event not handled"<<std::endl;
break;
}
}
#endif
ActionAdapter aa;
for(osgGA::EventQueue::Events::iterator itr = events.begin();
itr != events.end();
++itr)
{
osgGA::GUIEventAdapter* event = itr->get();
bool handled = false;
if (_cameraManipulator.valid())
{
_cameraManipulator->handle( *event, aa);
}
for(EventHandlers::iterator hitr = _eventHandlers.begin();
hitr != _eventHandlers.end() && !handled;
++hitr)
{
handled = (*hitr)->handle( *event, aa, 0, 0);
}
}
}
void Viewer::frameUpdateTraversal()
{
osg::notify(osg::NOTICE)<<"Viewer::frameUpdateTraversal() not implemented yet."<<std::endl;
if (_cameraManipulator.valid())
{
_camera->setViewMatrix(_cameraManipulator->getInverseMatrix());
}
updateSlaves();
}
void Viewer::frameCullTraversal()