C++ ogre::Overlay类代码示例

void PendulumTest::handleInput(opal::real elapsedRealTime, 
	const SimulationEngine& engine)
{
	OIS::Keyboard* keyboard = engine.getKeyboard();

	// This variable can be used to keep keys from repeating too fast.
	static Ogre::Real toggleTimer = 0;
	if (toggleTimer >= 0)
	{
		toggleTimer -= elapsedRealTime;
	}

	// Toggle GUI.
	if (keyboard->isKeyDown(OIS::KC_G) && toggleTimer <= 0)
	{
		Ogre::Overlay* debugOverlay = Ogre::OverlayManager::getSingleton().
			getByName("Verve/TrialNumber");

		if (debugOverlay->isVisible())
        {
			debugOverlay->hide();
			mAgentDebugger->setDisplayEnabled(false);
		}
		else
		{
			debugOverlay->show();
			mAgentDebugger->setDisplayEnabled(true);
		}

		toggleTimer = 0.5;
	}
}

// create overlay uv test
void Test::createOverlay(void)
{
	// load the fade
	mFader = 0;
	Ogre::MaterialPtr		mFaderMaterial;
	Ogre::TextureUnitState 	*mTexture = 0;

	Ogre::OverlayManager& overlayManager = Ogre::OverlayManager::getSingleton();

	mFader = static_cast<Ogre::PanelOverlayElement*>(
		overlayManager.createOverlayElement("Panel", "Fader"));
	mFader->setMetricsMode(Ogre::GMM_RELATIVE);
	mFader->setPosition(0, 0);
	mFader->setDimensions(0.25f, 0.25f);
	mFader->setMaterialName("BotonTest"); // Optional background material

	// Ensures that the material exists
	mFader->setUV(0,0,0.5,1);

	// show the fade
	mFader->show();

	// Create an overlay, and add the panel
	Ogre::Overlay			*mOverlay = 0;
	mOverlay = overlayManager.create("FaderOverlay");
	mOverlay->add2D(mFader);
	mOverlay->show();
}

	// Create text area for SkyX parameters
	void createTextArea()
	{
		// Create a panel
		Ogre::OverlayContainer* panel = static_cast<Ogre::OverlayContainer*>(
			OverlayManager::getSingleton().createOverlayElement("Panel", "SkyXParametersPanel"));
		panel->setMetricsMode(Ogre::GMM_PIXELS);
		panel->setPosition(10, 10);
		panel->setDimensions(400, 400);

		// Create a text area
		mTextArea = static_cast<Ogre::TextAreaOverlayElement*>(
			OverlayManager::getSingleton().createOverlayElement("TextArea", "SkyXParametersTextArea"));
		mTextArea->setMetricsMode(Ogre::GMM_PIXELS);
		mTextArea->setPosition(0, 0);
		mTextArea->setDimensions(100, 100);
		mTextArea->setCaption("SkyX plugin demo");
		mTextArea->setCharHeight(16);
		mTextArea->setFontName("BlueHighway");
		mTextArea->setColourBottom(ColourValue(0.3, 0.5, 0.3));
		mTextArea->setColourTop(ColourValue(0.5, 0.7, 0.5));

		// Create an overlay, and add the panel
		Ogre::Overlay* overlay = OverlayManager::getSingleton().create("OverlayName");
		overlay->add2D(panel);

		// Add the text area to the panel
		panel->addChild(mTextArea);

		// Show the overlay
		overlay->show();
	}

void FrameListener::showDebugOverlay(bool show) {
	Ogre::Overlay *overlay = Ogre::OverlayManager::getSingleton().getByName("Core/DebugOverlay");
	if (show)
		overlay->show();
	else
		overlay->hide();
}

 void setVisible(bool bShow) {
     if (bShow) {
         m_pOverlay->show();
     }
     else {
         m_pOverlay->hide();
     }
 }

void OgreApp::createScene()
{
	sceneMgr->setSkyBox(true, "Sky", 5, 8, 4000);
    sceneMgr->setAmbientLight(ColourValue(0.5f, 0.5f, 0.5f));
    sceneMgr->setShadowTechnique(SHADOWTYPE_STENCIL_ADDITIVE);

	node = sceneMgr->getRootSceneNode()->createChildSceneNode("OgreHead");
	ent = sceneMgr->createEntity("Ogre", "ogrehead.mesh");
	node->attachObject(ent);
	node->setPosition(0, 50, 0);

	OgreAL::Sound *bgSound = soundManager->createSound("5.1 Test", "6chan.ogg", true);
	bgSound->setGain(2);
	bgSound->setRelativeToListener(true);
	bgSound->play();

	node = sceneMgr->getRootSceneNode()->createChildSceneNode("CameraNode");
	node->setPosition(0, 100, 100);
	node = node->createChildSceneNode("PitchNode");
	node->attachObject(camera);
	node->attachObject(soundManager->getListener());
	node->pitch(Ogre::Degree(-30));

	// Create a ground plane
    Plane plane(Vector3::UNIT_Y, 0);
    MeshManager::getSingleton().createPlane("ground",
       ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, plane,
       15000,15000,20,20,true,1,5,5,Vector3::UNIT_Z);
    ent = sceneMgr->createEntity("GroundEntity", "ground");
    sceneMgr->getRootSceneNode()->createChildSceneNode()->attachObject(ent);
    ent->setMaterialName("Ground");
    ent->setCastShadows(false);

	light = sceneMgr->createLight("sun");
	light->setType(Light::LT_DIRECTIONAL);
	light->setDirection(-1,-1,-1);

	OverlayManager& overlayMgr = OverlayManager::getSingleton();
	Ogre::OverlayContainer* panel = static_cast<OverlayContainer*>(
	   overlayMgr.createOverlayElement("Panel", "PanelName"));
	panel->setMetricsMode(Ogre::GMM_PIXELS);
	panel->setPosition(10, 10);
	panel->setDimensions(100, 100);

	TextAreaOverlayElement* textArea = static_cast<TextAreaOverlayElement*>(
	   overlayMgr.createOverlayElement("TextArea", "TextAreaName"));
	textArea->setMetricsMode(Ogre::GMM_PIXELS);
	textArea->setPosition(0, 0);
	textArea->setDimensions(100, 100);
	textArea->setCharHeight(16);
	textArea->setFontName("Arial");
	textArea->setCaption("Hello, World!");

	Ogre::Overlay* overlay = overlayMgr.create("AverageFps");
	overlay->add2D(panel);
	panel->addChild(textArea);
	overlay->show();
}

void Menu::showDialogue(const std::string& first, const std::vector<std::string>& options)
{
  Ogre::OverlayManager& om = Ogre::OverlayManager::getSingleton();
  std::cout << "getByName(overlay)\n";
  Ogre::Overlay* dialOverlay = om.getByName(cDialogueOverlay);
  if (dialOverlay == NULL)
  {
    std::cout << "create(overlay)\n";
    dialOverlay = om.create(cDialogueOverlay);
  }
  Ogre::OverlayContainer* dialCont = NULL;
  std::cout << "getOE(Box)\n";
  dialCont = static_cast<Ogre::OverlayContainer*> (om.getOverlayElement(cDialogueOverlay+"/Box"));
  if (dialCont == NULL)
  {
    std::cout << "createOE(Box)\n";
    dialCont = static_cast<Ogre::OverlayContainer*>
                    (om.createOverlayElement("Panel", cDialogueOverlay+"/Box"));
    dialCont->setPosition(0.0, 0.75);
    dialCont->setDimensions(1.0, 0.25);
    dialCont->setMaterialName("Dusk/Dialogue/Black");
  }
  std::cout << "getOE(Box/First)\n";
  Ogre::OverlayElement* dialElem;
  dialElem = om.getOverlayElement(cDialogueOverlay+"/Box/First");
  if (dialElem==NULL)
  {
    std::cout << "createOE(Box/First)\n";
    dialElem = om.createOverlayElement("TextArea", cDialogueOverlay+"/Box/First");
    dialElem->setDimensions(1.0, 0.0625);
    dialElem->setPosition(0.0, 0.0);
    dialElem->setMaterialName("Dusk/Dialogue/Element");
    dialCont->addChild(dialElem);
  }
  dialElem->setCaption(first);
  dialElem->show();
  unsigned int elemCount = options.size();
  if (elemCount > cMaxDialogueOptions)
  {
    elemCount = cMaxDialogueOptions;
  }

  killDialogueOverlayLines();
  unsigned int i;
  const float elemHeight = 0.8/(float)elemCount;
  for (i=0; i<elemCount; i=i+1)
  {
    //dialElem = om.createOverlayElement("TextArea", cDialogueOverlay+"/Box/Line"+IntToString(i));
    dialElem = om.createOverlayElementFromTemplate(cDialogueOverlay+"/LineTemplate", "TextArea", cDialogueOverlay+"/Box/Line"+IntToString(i));
    dialElem->setPosition(0.1, dialCont->getHeight()*(0.2+i*elemHeight));
    dialElem->setDimensions(0.8, elemHeight*dialCont->getHeight());
    dialElem->setCaption(IntToString(i+1)+": "+options[i]);
    dialElem->show();
    dialCont->addChild(dialElem);
    m_DialogueLineCount = i+1;
  }//for
  dialOverlay->show();
}

void cStateEndRun::Init(){
	printf("cStateMenu: Init\n");
	MenuSet[0] = "MenuOpt1";
	MenuSet[1] = "MenuOpt2";
	MenuSet[2] = "MenuOpt3";
	MenuSet[3] = "MenuOpt4";
	MenuSet[4] = "MenuOpt5";

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

	//m_pProgLPanel = static_cast<Ogre::OverlayContainer*>(m_pOverlayMgr->createOverlayElement("Panel","ProgLPanel"));
	//m_pProgLPanel->setMetricsMode(Ogre::GMM_PIXELS);
	//m_pProgLPanel->setPosition(10, 10);
	//m_pProgLPanel->setDimensions(32, 32);
	//m_pProgLPanel->setMaterialName( "Programs/Crash" );
	//m_pProgRPanel = static_cast<Ogre::OverlayContainer*>(m_pOverlayMgr->createOverlayElement("Panel","ProgRPanel"));
	//m_pProgRPanel->setMetricsMode(Ogre::GMM_PIXELS);
	//m_pProgRPanel->setPosition(900, 10);
	//m_pProgRPanel->setDimensions(32, 32);
	//m_pProgRPanel->setMaterialName( "Programs/Validate" );

	m_pMenuPanel = static_cast<Ogre::OverlayContainer*>(m_pOverlayMgr->createOverlayElement("Panel","MenuP"));
	m_pMenuPanel->setMetricsMode(Ogre::GMM_PIXELS);
	m_pMenuPanel->setPosition(400, 200);
	m_pMenuPanel->setDimensions(200, 200);
	m_pMenuPanel->setMaterialName( "BaseWhite" );
	TextRenderer::getSingleton().addLTextBox( MenuSet[0], "MenuP", "Controls", 10, 10, 100, 40, Ogre::ColourValue::Red);
	TextRenderer::getSingleton().addLTextBox( MenuSet[1], "MenuP", "Video", 10, 50, 100, 40, Ogre::ColourValue::Black);
	TextRenderer::getSingleton().addLTextBox( MenuSet[2], "MenuP", "Audio", 10, 90, 100, 40, Ogre::ColourValue::Black);
	TextRenderer::getSingleton().addLTextBox( MenuSet[3], "MenuP", "OPP", 10, 130, 100, 40, Ogre::ColourValue::Black);
	TextRenderer::getSingleton().addLTextBox( MenuSet[4], "MenuP", "About", 10, 170, 100, 40, Ogre::ColourValue::Black);

	m_pDeckPanel = static_cast<Ogre::OverlayContainer*>(m_pOverlayMgr->createOverlayElement("Panel","DeckP"));
	m_pDeckPanel->setMetricsMode(Ogre::GMM_PIXELS);
	m_pDeckPanel->setPosition(500, 300);
	m_pDeckPanel->setDimensions(400, 400);
	m_pDeckPanel->setMaterialName( "BaseWhite" );

	m_pActionPanel = static_cast<Ogre::OverlayContainer*>(m_pOverlayMgr->createOverlayElement("Panel","ActionP"));
	m_pActionPanel->setMetricsMode(Ogre::GMM_PIXELS);
	m_pActionPanel->setPosition(300, 200);
	m_pActionPanel->setDimensions(200, 400);
	m_pActionPanel->setMaterialName( "BaseWhite" );

	Ogre::Overlay* overlay = m_pOverlayMgr->getByName("overlay1");
	overlay->add2D(m_pMenuPanel);
	overlay->add2D(m_pDeckPanel);
	overlay->add2D(m_pActionPanel);

	if(m_pMenuPanel->isVisible() == true) m_pMenuPanel->hide();
	if(m_pDeckPanel->isVisible() == true) m_pDeckPanel->hide();
	if(m_pActionPanel->isVisible() == true) m_pActionPanel->hide();

	//m_pMainPanel->addChild(m_pProgLPanel);
	//m_pMainPanel->addChild(m_pProgRPanel);
	//TextRenderer::getSingleton().addTextBox("txtGreeting", "container1", "Hello", 10, 10, 100, 20, Ogre::ColourValue::Green);
}

void MenuState::createOverlay()
{
	unsigned int width, height, depth;
	int left, top;

	Ogre::Overlay *overlay = _overlayManager->getByName("Menu");
	_root->getAutoCreatedWindow()->getMetrics(width, height, depth, left, top);

	overlay->setScale(((float(width) / 100) / 1024) * 100, ((float(height) / 100) / 768) * 100);
	overlay->show();
//	_fader->startFadeIn(0);
}

void Menu::hideDialogue()
{
  Ogre::OverlayManager* olMgr =Ogre::OverlayManager::getSingletonPtr();
  /*If overlay manager is NULL, then it is not present any more and all overlays
    should already be destroyed at that point. So we can return anyway. */
  if (olMgr==NULL) return;
  Ogre::Overlay* ol = olMgr->getByName(cDialogueOverlay);
  if (ol!=NULL)
  {
    ol->hide();
  }
}

void MenuState::exit ()
{
//	delete _fader;
	// musica del menu STOP
	IntroState::getSingleton().getMenuTrackPtr()->stop();

	CEGUI::System::getSingleton().getDefaultGUIContext().getMouseCursor().hide();
	CEGUI::System::getSingleton().getDefaultGUIContext().getRootWindow()->hide();
	Ogre::Overlay *overlay = _overlayManager->getByName("Menu");
	overlay->hide();
	_sceneMgr->clearScene();
	_root->getAutoCreatedWindow()->removeAllViewports();
}

void ResourceGroupReloader::updateOnEveryRenderable()
{

	//1/ get all the available object type (entity, light, user defined types ...)
	std::vector<std::string> allAvailableTypes; 
	Ogre::Root::MovableObjectFactoryIterator iterFactory = Ogre::Root::getSingleton().getMovableObjectFactoryIterator();
	for(;iterFactory.hasMoreElements();)
	{
		Ogre::MovableObjectFactory* factory = iterFactory.getNext();
		allAvailableTypes.push_back(factory->getType());
	}

	UpdateMaterialRenderableVisitor lRenderableVisitor;

	//2/ for each scene manager, lets visit renderables!
	// unfortunately that does not cover all renderables type... (overlays...)
	Ogre::SceneManagerEnumerator::SceneManagerIterator iterSceneManager = Ogre::Root::getSingleton().getSceneManagerIterator();
	for(;iterSceneManager.hasMoreElements();)
	{
		Ogre::SceneManager * scMgr = iterSceneManager.getNext();

		std::vector<std::string>::iterator iterMovableType = allAvailableTypes.begin();
		std::vector<std::string>::iterator iterMovableTypeEnd = allAvailableTypes.end();
		for(;iterMovableType!=iterMovableTypeEnd;iterMovableType++)
		{
			Ogre::SceneManager::MovableObjectIterator iterMovable = scMgr->getMovableObjectIterator(*iterMovableType);
			for(;iterMovable.hasMoreElements();)
			{
				Ogre::MovableObject * movable = iterMovable.getNext();
				movable->visitRenderables(&lRenderableVisitor,false);
			}
		}
	}

	// 3 / visit overlays!
	{
		Ogre::OverlayManager::OverlayMapIterator iterOverlay = Ogre::OverlayManager::getSingleton().getOverlayIterator();
		for(;iterOverlay.hasMoreElements();)
		{
			Ogre::Overlay* lOverlay = iterOverlay.getNext();
			// get the first level of OverlayContainer in the Overlay
			Ogre::Overlay::Overlay2DElementsIterator iterOverlayElem = lOverlay->get2DElementsIterator();
			for(;iterOverlayElem.hasMoreElements();)
			{
				Ogre::OverlayContainer * lOverlayCont = iterOverlayElem.getNext();
				visitRecursivelyRenderablesFrom(lOverlayCont,lRenderableVisitor, false);
			}
		}
	}
}

void Gui::createGui(Ogre::SceneManager* p_scene_manager, OgreBites::SdkTrayManager* p_tray_manager){
	m_tray_manager = p_tray_manager;
	m_button = m_tray_manager->createButton(OgreBites::TL_TOPLEFT, "MyButton", "Click me!");

	if(m_button->getName() == "MyButton"){
		int p = 0;
	}

	// Load layout
   Ogre::ResourceGroupManager::getSingletonPtr();
   Ogre::OverlayManager* mg = Ogre::OverlayManager::getSingletonPtr();
   Ogre::Overlay* ov = mg->getByName("testOverlay");
   ov->show();


}

    void fade(Ogre::Real tpf) {
        if (m_eFadeOperation != FADE_NONE && m_pTextUnitState) {
            m_pTextUnitState->setAlphaOperation(Ogre::LBX_MODULATE, Ogre::LBS_MANUAL, Ogre::LBS_TEXTURE, m_fAlpha);

            if (m_eFadeOperation == FADE_IN) {
                m_fCurrentDuration -= tpf;
                m_fAlpha = m_fCurrentDuration / m_fTotalDuration;
                if (m_fAlpha < 0.0) {
                    m_pOverlay->hide();
                    m_eFadeOperation = FADE_NONE;
                    if (m_pFaderCallback) {
                        m_pFaderCallback->fadeInCallback();
                    }
                }
            }
            else if (m_eFadeOperation == FADE_OUT) {
                m_fCurrentDuration += tpf;
                m_fAlpha = m_fCurrentDuration / m_fTotalDuration;
                if (m_fAlpha > 1.0) {
                    m_eFadeOperation = FADE_NONE;
                    if (m_pFaderCallback) {
                        m_pFaderCallback->fadeOutCallback();
                    }
                }
            }
        }
#ifdef USE_SPRITE_SHADER
        m_SpritePixelShaderParameters->setNamedConstant("colour", Ogre::ColourValue(1, 1, 1, m_fAlpha));
#endif
    }

    void startFadeIn(Ogre::Real fDuration) {
        if (fDuration < 0) fDuration = -fDuration;

        m_fAlpha = 1.0;
        m_fTotalDuration = fDuration;
        m_fCurrentDuration = fDuration;
        m_eFadeOperation = FADE_IN;
        m_pOverlay->show();
    }