#include "FOX_OSG_MDIView.h"

#include <osgViewer/ViewerEventHandlers>

#include <osgGA/TrackballManipulator>

#include <osgDB/ReadFile>


// Map
FXDEFMAP(FOX_OSG_MDIView) FOX_OSG_MDIView_Map[] = {
	//________Message_Type_________		___ID___						________Message_Handler________
	FXMAPFUNC(SEL_CHORE,				FOX_OSG_MDIView::ID_CHORE,		FOX_OSG_MDIView::OnIdle)
};

FXIMPLEMENT(FOX_OSG_MDIView, FXMDIChild, FOX_OSG_MDIView_Map, ARRAYNUMBER(FOX_OSG_MDIView_Map))

FOX_OSG_MDIView::FOX_OSG_MDIView(FXMDIClient *p, const FXString &name,
		FXIcon *ic, FXPopup *pup, FXuint opt,
		FXint x, FXint y, FXint w, FXint h)
		:   FXMDIChild(p, name, ic, pup, opt, x, y, w, h)
{
	// A visual to drag OpenGL in double-buffered mode; note the glvisual is
	// shared between all windows which need the same depths and numbers of buffers
	// Thus, while the first visual may take some time to initialize, each subsequent
	// window can be created very quickly; we need to determine grpaphics hardware
	// characteristics only once.
	FXGLVisual* glVisual=new FXGLVisual(getApp(),VISUAL_DOUBLEBUFFER|VISUAL_STEREO);

	m_gwFox = new GraphicsWindowFOX(this, glVisual, NULL, 0, LAYOUT_FILL_X|LAYOUT_FILL_Y, x, y, w, h );

	osgViewer::Viewer *viewer = new osgViewer::Viewer;
	viewer->getCamera()->setGraphicsContext(m_gwFox);
	viewer->getCamera()->setViewport(0,0,w,h);
	viewer->setThreadingModel(osgViewer::Viewer::SingleThreaded);

	// load the scene.
	osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile("cow.osg");
	if (!loadedModel)
	{
		return ;
	}

	// add the stats handler
    viewer->addEventHandler(new osgViewer::StatsHandler);

	viewer->setSceneData(loadedModel.get());

	viewer->setCameraManipulator(new osgGA::TrackballManipulator);

	SetViewer(viewer);

	getApp()->addChore(this,ID_CHORE);

}


FOX_OSG_MDIView::~FOX_OSG_MDIView()
{
}

long FOX_OSG_MDIView::OnIdle(FXObject *sender, FXSelector sel, void* ptr)
{
	m_osgViewer->frame();
	getApp()->addChore(this, ID_CHORE);
	return 1;
}

void FOX_OSG_MDIView::SetViewer(osgViewer::Viewer* viewer)
{
	m_osgViewer = viewer;
}