BCIgui/Masterarbeit/openvibe/extras-master/applications/demos/ssvep-demo/src/ovassvepCBasicPainter.cpp

#if defined(TARGET_HAS_ThirdPartyOgre3D)

#include "ovassvepCBasicPainter.h"
#include "ovassvepCApplication.h"

#if (OGRE_VERSION_MAJOR > 1) || ((OGRE_VERSION_MAJOR == 1) && (OGRE_VERSION_MINOR >= 9))
#include "Overlay/OgreOverlayManager.h"
#include "Overlay/OgreOverlaySystem.h"
#endif

namespace OpenViBE {
namespace SSVEP {

//---------------------------------------------------------------------------------------------------
CBasicPainter::CBasicPainter(CApplication* application)
	: m_application(application), m_sceneManager(application->getSceneManager())
{
	m_aabInf.setInfinite();

#if (OGRE_VERSION_MAJOR > 1) || ((OGRE_VERSION_MAJOR == 1) && (OGRE_VERSION_MINOR >= 9))
	// on Ogre 1.9, overlay system needs to be manually created
	Ogre::OverlaySystem* pOverlaySystem = OGRE_NEW Ogre::OverlaySystem();
	m_sceneManager->addRenderQueueListener(pOverlaySystem);
#endif

	m_overlayManager = Ogre::OverlayManager::getSingletonPtr();

	(m_application->getLogManager()) << Kernel::LogLevel_Debug << "  + Creating OverlayManager\n";
	Ogre::Overlay* overlay = m_overlayManager->create("TextOverlay");


	m_overlayContainer = dynamic_cast<Ogre::OverlayContainer*>(m_overlayManager->createOverlayElement("Panel", "TextContainer"));
	m_overlayContainer->setDimensions(1, 1);
	m_overlayContainer->setPosition(0, 0);

	overlay->add2D(m_overlayContainer);
	overlay->show();
}


//---------------------------------------------------------------------------------------------------
Ogre::ManualObject* CBasicPainter::paintRectangle(const Ogre::RealRect& oRectangle, const Ogre::ColourValue color, const int plane) const
{
	Ogre::ManualObject* object = m_sceneManager->createManualObject();
	object->begin("BasicSurface/Diffuse", Ogre::RenderOperation::OT_TRIANGLE_FAN);
	object->setUseIdentityProjection(true);
	object->setUseIdentityView(true);

	object->position(oRectangle.right, oRectangle.top, 0.0);
	object->colour(color);
	object->index(0);

	object->position(oRectangle.left, oRectangle.top, 0.0);
	object->colour(color);
	object->index(1);

	object->position(oRectangle.left, oRectangle.bottom, 0.0);
	object->colour(color);
	object->index(2);

	object->position(oRectangle.right, oRectangle.bottom, 0.0);
	object->colour(color);
	object->index(3);

	object->index(0);

	object->end();

	object->setBoundingBox(m_aabInf);
	object->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY - plane);

	object->setVisible(true);

	return object;
}


//---------------------------------------------------------------------------------------------------
Ogre::ManualObject* CBasicPainter::paintTriangle(const Point p1, const Point p2, const Point p3, const Ogre::ColourValue color, const int plane) const
{
	Ogre::ManualObject* object = m_sceneManager->createManualObject();
	object->begin("BasicSurface/Diffuse", Ogre::RenderOperation::OT_TRIANGLE_FAN);
	object->setUseIdentityProjection(true);
	object->setUseIdentityView(true);

	object->position(p1.m_X, p1.m_Y, 0.0);
	object->colour(color);
	object->index(0);

	object->position(p2.m_X, p2.m_Y, 0.0);
	object->colour(color);
	object->index(1);

	object->position(p3.m_X, p3.m_Y, 0.0);
	object->colour(color);
	object->index(2);

	object->index(0);

	object->end();

	object->setBoundingBox(m_aabInf);
	object->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY - plane);

	object->setVisible(true);

	return object;
}

//---------------------------------------------------------------------------------------------------
Ogre::ManualObject* CBasicPainter::paintCircle(const Ogre::Real rX, const Ogre::Real rY, const Ogre::Real rR, const Ogre::ColourValue color,
											   const bool bFilled, const int plane) const
{
	Ogre::ManualObject* object = m_sceneManager->createManualObject();

	if (bFilled) { object->begin("BasicSurface/Diffuse", Ogre::RenderOperation::OT_TRIANGLE_FAN); }
	else { object->begin("BasicSurface/Diffuse", Ogre::RenderOperation::OT_LINE_STRIP); }

	object->setUseIdentityProjection(true);
	object->setUseIdentityView(true);

	float const fAccuracy = 16;
	unsigned uiIndex      = 0;

	for (float theta = 0; theta <= 2 * Ogre::Math::PI; theta += Ogre::Math::PI / fAccuracy)
	{
		object->position(rX + rR * cos(theta), rY + rR * sin(theta), 0);
		object->colour(color);
		object->index(uiIndex++);
	}

	object->index(0);

	object->end();

	object->setBoundingBox(m_aabInf);
	object->setRenderQueueGroup(Ogre::RENDER_QUEUE_OVERLAY - plane);

	object->setVisible(true);

	return object;
}

//---------------------------------------------------------------------------------------------------
void CBasicPainter::paintText(const std::string& sID, const std::string& sText, const Ogre::Real rX, const Ogre::Real rY,
							  const Ogre::Real rWidth, const Ogre::Real rHeight, const Ogre::ColourValue& color) const
{
	Ogre::OverlayElement* text = m_overlayManager->createOverlayElement("TextArea", sID);
	text->setDimensions(rWidth, rHeight);
	text->setMetricsMode(Ogre::GMM_PIXELS);
	text->setPosition(rX, rY);
	text->setParameter("font_name", "DejaVu");
	text->setColour(color);
	text->setCaption(sText);
	m_overlayContainer->addChild(text);
}


#endif

}  // namespace SSVEP
}  // namespace OpenViBE