#include "viewer/OsgOpenGLWindow.h"
#include "viewer/OSGRenderer.h"

#include <osgViewer/Viewer>
#include <osg/GL>

#include <QApplication>
#include <QKeyEvent>
#include <QInputDialog>
#include <QLayout>
#include <QMainWindow>
#include <QScreen>
#include <QWindow>

#include "viewer/GraphicsWindowEx.h"


OsgOpenGLWindow::OsgOpenGLWindow(QWidget* parent)
    : QOpenGLWindow(QOpenGLWindow::NoPartialUpdate, nullptr)
{
    widget_ = QWidget::createWindowContainer(this);
    renderer_ = new OSGRenderer(this);
}

OsgOpenGLWindow::~OsgOpenGLWindow()
{
}

osgViewer::Viewer* OsgOpenGLWindow::getOsgViewer()
{
    return m_renderer;
}

OpenThreads::ReadWriteMutex* OsgOpenGLWindow::mutex()
{
    return &_osgMutex;
}


void OsgOpenGLWindow::initializeGL()
{
    //// Initializes OpenGL function resolution for the current context.
    //initializeOpenGLFunctions();
    //createRenderer();
    //emit initialized();
    context()->doneCurrent();
    gw_->SetSharedContext(context());
    QApplication::postEvent(this, new RenderBindGraphicsContextEvent(gw_));

    double pixelRatio = screen()->devicePixelRatio();
    gw_->UpdateWindowScale(pixelRatio);
    QApplication::postEvent(this, new GraphicsWindowResizeEvent(gw_, width() * pixelRatio, height() * pixelRatio));

}

void OsgOpenGLWindow::resizeGL(int w, int h)
{
    Q_ASSERT(m_renderer);
    double pixelRatio = screen()->devicePixelRatio();
    gw_->UpdateWindowScale(pixelRatio);
    QApplication::postEvent(this, new GraphicsWindowResizeEvent(gw_, w * pixelRatio, h * pixelRatio));
}

void OsgOpenGLWindow::paintGL()
{
    OpenThreads::ScopedReadLock locker(_osgMutex);
	if (_isFirstFrame) {
		_isFirstFrame = false;
		m_renderer->getCamera()->getGraphicsContext()->setDefaultFboId(defaultFramebufferObject());
	}
    m_renderer->frame();
}

void OsgOpenGLWindow::keyPressEvent(QKeyEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->keyPressEvent(event);
}

void OsgOpenGLWindow::keyReleaseEvent(QKeyEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->keyReleaseEvent(event);
}

void OsgOpenGLWindow::mousePressEvent(QMouseEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->mousePressEvent(event);
}

void OsgOpenGLWindow::mouseReleaseEvent(QMouseEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->mouseReleaseEvent(event);
}

void OsgOpenGLWindow::mouseDoubleClickEvent(QMouseEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->mouseDoubleClickEvent(event);
}

void OsgOpenGLWindow::mouseMoveEvent(QMouseEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->mouseMoveEvent(event);
}

void OsgOpenGLWindow::wheelEvent(QWheelEvent* event)
{
    Q_ASSERT(gw_);
    // forward event to renderer
    gw_->wheelEvent(event);
}

void OsgOpenGLWindow::setDefaultDisplaySettings()
{
    osg::DisplaySettings* ds = osg::DisplaySettings::instance().get();
    ds->setNvOptimusEnablement(1);
    ds->setStereo(false);
}

void OsgOpenGLWindow::createRenderer()
{
    // call this before creating a View...
    setDefaultDisplaySettings();

    /*m_renderer = new OSGRenderer(this);
    double pixelRatio = screen()->devicePixelRatio();
    m_renderer->setupOSG(width(), height(), pixelRatio);*/
}