BaseApplication.cpp

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#resources #dialog #string #plugins #delete #textures

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/* ** @BaseApplication.cpp ** http://blog.youkuaiyun.com/armoonwei/archive/2010/10/26/5966133.aspx */ #include "BaseApplication.h" #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE #include <macUtils.h> #endif // 构造函数 BaseApplication::BaseApplication(void) : mRoot(0), mCamera(0), mSceneMgr(0), mWindow(0), mResourcesCfg(Ogre::StringUtil::BLANK), mPluginsCfg(Ogre::StringUtil::BLANK), mTrayMgr(0), mCameraMan(0), mDetailsPanel(0), mCursorWasVisible(false), mShutDown(false), mInputManager(0), mMouse(0), mKeyboard(0) { #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE m_ResourcePath = Ogre::macBundlePath() + "/Contents/Resources/"; #else m_ResourcePath = ""; #endif } // 析构函数 BaseApplication::~BaseApplication(void) { if (mTrayMgr) delete mTrayMgr; if (mCameraMan) delete mCameraMan; // Remove ourself as a Window listener Ogre::WindowEventUtilities::removeWindowEventListener(mWindow, this); windowClosed(mWindow); delete mRoot; } // 显示参数配置界面 bool BaseApplication::configure(void) { // Show the configuration dialog and initialise the system // You can skip this and use root.restoreConfig() to load configuration // settings if you were sure there are valid ones saved in ogre.cfg if(mRoot->showConfigDialog()) { // If returned true, user clicked OK so initialise // Here we choose to let the system create a default rendering window by passing 'true' mWindow = mRoot->initialise(true, "TutorialApplication Render Window"); return true; } else { return false; } } // 创建场景管理器 void BaseApplication::chooseSceneManager(void) { // Get the SceneManager, in this case a generic one mSceneMgr = mRoot->createSceneManager(Ogre::ST_GENERIC); } // 创建摄像机 void BaseApplication::createCamera(void) { // Create the camera mCamera = mSceneMgr->createCamera("PlayerCam"); // Position it at 500 in Z direction mCamera->setPosition(Ogre::Vector3(0,0,80)); // Look back along -Z mCamera->lookAt(Ogre::Vector3(0,0,-300)); mCamera->setNearClipDistance(5); mCameraMan = new OgreBites::SdkCameraMan(mCamera); // create a default camera controller } // 帧监听函数 void BaseApplication::createFrameListener(void) { Ogre::LogManager::getSingletonPtr()->logMessage("*** Initializing OIS ***"); OIS::ParamList pl; size_t windowHnd = 0; std::ostringstream windowHndStr; mWindow->getCustomAttribute("WINDOW", &windowHnd); windowHndStr << windowHnd; pl.insert(std::make_pair(std::string("WINDOW"), windowHndStr.str())); mInputManager = OIS::InputManager::createInputSystem( pl ); mKeyboard = static_cast<OIS::Keyboard*>(mInputManager->createInputObject( OIS::OISKeyboard, true )); mMouse = static_cast<OIS::Mouse*>(mInputManager->createInputObject( OIS::OISMouse, true )); mMouse->setEventCallback(this); mKeyboard->setEventCallback(this); //Set initial mouse clipping size windowResized(mWindow); //Register as a Window listener Ogre::WindowEventUtilities::addWindowEventListener(mWindow, this); mTrayMgr = new OgreBites::SdkTrayManager("InterfaceName", mWindow, mMouse, this); mTrayMgr->showFrameStats(OgreBites::TL_BOTTOMLEFT); mTrayMgr->showLogo(OgreBites::TL_BOTTOMRIGHT); mTrayMgr->hideCursor(); // create a params panel for displaying sample details Ogre::StringVector items; items.push_back("cam.pX"); items.push_back("cam.pY"); items.push_back("cam.pZ"); items.push_back(""); items.push_back("cam.oW"); items.push_back("cam.oX"); items.push_back("cam.oY"); items.push_back("cam.oZ"); items.push_back(""); items.push_back("Filtering"); items.push_back("Poly Mode"); mDetailsPanel = mTrayMgr->createParamsPanel(OgreBites::TL_NONE, "DetailsPanel", 200, items); mDetailsPanel->setParamValue(9, "Bilinear"); mDetailsPanel->setParamValue(10, "Solid"); mDetailsPanel->hide(); mRoot->addFrameListener(this); } // 析构场景 void BaseApplication::destroyScene(void) { } // 创建视口 void BaseApplication::createViewports(void) { // Create one viewport, entire window Ogre::Viewport* vp = mWindow->addViewport(mCamera); vp->setBackgroundColour(Ogre::ColourValue(0,0,0)); // Alter the camera aspect ratio to match the viewport mCamera->setAspectRatio( Ogre::Real(vp->getActualWidth()) / Ogre::Real(vp->getActualHeight())); } // 初始化资源 void BaseApplication::setupResources(void) { // Load resource paths from config file Ogre::ConfigFile cf; cf.load(mResourcesCfg); // Go through all sections & settings in the file Ogre::ConfigFile::SectionIterator seci = cf.getSectionIterator(); Ogre::String secName, typeName, archName; while (seci.hasMoreElements()) { secName = seci.peekNextKey(); Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext(); Ogre::ConfigFile::SettingsMultiMap::iterator i; for (i = settings->begin(); i != settings->end(); ++i) { typeName = i->first; archName = i->second; #if OGRE_PLATFORM == OGRE_PLATFORM_APPLE // OS X does not set the working directory relative to the app, // In order to make things portable on OS X we need to provide // the loading with it's own bundle path location if (!Ogre::StringUtil::startsWith(archName, "/", false)) // only adjust relative dirs archName = Ogre::String(Ogre::macBundlePath() + "/" + archName); #endif Ogre::ResourceGroupManager::getSingleton().addResourceLocation( archName, typeName, secName); } } } // 创建资源监听 void BaseApplication::createResourceListener(void) { // do nothing } // 载入资源 void BaseApplication::loadResources(void) { Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups(); } // 程序入口 void BaseApplication::go(void) { #ifdef _DEBUG #ifndef OGRE_STATIC_LIB mResourcesCfg = m_ResourcePath + "resources_d.cfg"; mPluginsCfg = m_ResourcePath + "plugins_d.cfg"; #else mResourcesCfg = "resources_d.cfg"; mPluginsCfg = "plugins_d.cfg"; #endif #else #ifndef OGRE_STATIC_LIB mResourcesCfg = m_ResourcePath + "resources.cfg"; mPluginsCfg = m_ResourcePath + "plugins.cfg"; #else mResourcesCfg = "resources.cfg"; mPluginsCfg = "plugins.cfg"; #endif #endif if (!setup()) return; mRoot->startRendering(); // clean up destroyScene(); } // 配置 bool BaseApplication::setup(void) { mRoot = new Ogre::Root(mPluginsCfg); setupResources(); bool carryOn = configure(); if (!carryOn) return false; chooseSceneManager(); createCamera(); createViewports(); // Set default mipmap level (NB some APIs ignore this) Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5); // Create any resource listeners (for loading screens) createResourceListener(); // Load resources loadResources(); // Create the scene createScene(); createFrameListener(); return true; } // 渲染队列 bool BaseApplication::frameRenderingQueued(const Ogre::FrameEvent& evt) { if(mWindow->isClosed()) return false; if(mShutDown) return false; //Need to capture/update each device mKeyboard->capture(); mMouse->capture(); mTrayMgr->frameRenderingQueued(evt); if (!mTrayMgr->isDialogVisible()) { mCameraMan->frameRenderingQueued(evt); // if dialog isn't up, then update the camera if (mDetailsPanel->isVisible()) // if details panel is visible, then update its contents { mDetailsPanel->setParamValue(0, Ogre::StringConverter::toString(mCamera->getDerivedPosition().x)); mDetailsPanel->setParamValue(1, Ogre::StringConverter::toString(mCamera->getDerivedPosition().y)); mDetailsPanel->setParamValue(2, Ogre::StringConverter::toString(mCamera->getDerivedPosition().z)); mDetailsPanel->setParamValue(4, Ogre::StringConverter::toString(mCamera->getDerivedOrientation().w)); mDetailsPanel->setParamValue(5, Ogre::StringConverter::toString(mCamera->getDerivedOrientation().x)); mDetailsPanel->setParamValue(6, Ogre::StringConverter::toString(mCamera->getDerivedOrientation().y)); mDetailsPanel->setParamValue(7, Ogre::StringConverter::toString(mCamera->getDerivedOrientation().z)); } } return true; } // 某个按键被按下了 bool BaseApplication::keyPressed(const OIS::KeyEvent &arg) { if (mTrayMgr->isDialogVisible()) return true; // don't process any more keys if dialog is up if (arg.key == OIS::KC_F) // toggle visibility of advanced frame stats { mTrayMgr->toggleAdvancedFrameStats(); } else if (arg.key == OIS::KC_G) // toggle visibility of even rarer debugging details { if (mDetailsPanel->getTrayLocation() == OgreBites::TL_NONE) { mTrayMgr->moveWidgetToTray(mDetailsPanel, OgreBites::TL_TOPRIGHT, 0); mDetailsPanel->show(); } else { mTrayMgr->removeWidgetFromTray(mDetailsPanel); mDetailsPanel->hide(); } } else if (arg.key == OIS::KC_T) // cycle polygon rendering mode { Ogre::String newVal; Ogre::TextureFilterOptions tfo; unsigned int aniso; switch (mDetailsPanel->getParamValue(9).asUTF8()[0]) { case 'B': newVal = "Trilinear"; tfo = Ogre::TFO_TRILINEAR; aniso = 1; break; case 'T': newVal = "Anisotropic"; tfo = Ogre::TFO_ANISOTROPIC; aniso = 8; break; case 'A': newVal = "None"; tfo = Ogre::TFO_NONE; aniso = 1; break; default: newVal = "Bilinear"; tfo = Ogre::TFO_BILINEAR; aniso = 1; } Ogre::MaterialManager::getSingleton().setDefaultTextureFiltering(tfo); Ogre::MaterialManager::getSingleton().setDefaultAnisotropy(aniso); mDetailsPanel->setParamValue(9, newVal); } else if (arg.key == OIS::KC_R) // cycle polygon rendering mode { Ogre::String newVal; Ogre::PolygonMode pm; switch (mCamera->getPolygonMode()) { case Ogre::PM_SOLID: newVal = "Wireframe"; pm = Ogre::PM_WIREFRAME; break; case Ogre::PM_WIREFRAME: newVal = "Points"; pm = Ogre::PM_POINTS; break; default: newVal = "Solid"; pm = Ogre::PM_SOLID; } mCamera->setPolygonMode(pm); mDetailsPanel->setParamValue(10, newVal); } else if(arg.key == OIS::KC_F5) // refresh all textures { Ogre::TextureManager::getSingleton().reloadAll(); } else if (arg.key == OIS::KC_SYSRQ) // take a screenshot { mWindow->writeContentsToTimestampedFile("screenshot", ".jpg"); } else if (arg.key == OIS::KC_ESCAPE) { mShutDown = true; } mCameraMan->injectKeyDown(arg); return true; } // 按键松开的处理 bool BaseApplication::keyReleased( const OIS::KeyEvent &arg ) { mCameraMan->injectKeyUp(arg); return true; } // 鼠标移动的处理 bool BaseApplication::mouseMoved( const OIS::MouseEvent &arg ) { if (mTrayMgr->injectMouseMove(arg)) return true; mCameraMan->injectMouseMove(arg); return true; } // 鼠标按下的处理 bool BaseApplication::mousePressed( const OIS::MouseEvent &arg, OIS::MouseButtonID id ) { if (mTrayMgr->injectMouseDown(arg, id)) return true; mCameraMan->injectMouseDown(arg, id); return true; } // 鼠标松开的处理 bool BaseApplication::mouseReleased( const OIS::MouseEvent &arg, OIS::MouseButtonID id ) { if (mTrayMgr->injectMouseUp(arg, id)) return true; mCameraMan->injectMouseUp(arg, id); return true; } // 窗口大小改变了 void BaseApplication::windowResized(Ogre::RenderWindow* rw) { unsigned int width, height, depth; int left, top; rw->getMetrics(width, height, depth, left, top); const OIS::MouseState &ms = mMouse->getMouseState(); ms.width = width; ms.height = height; } // 窗口被关闭了 void BaseApplication::windowClosed(Ogre::RenderWindow* rw) { //Only close for window that created OIS (the main window in these demos) if( rw == mWindow ) { if( mInputManager ) { mInputManager->destroyInputObject( mMouse ); mInputManager->destroyInputObject( mKeyboard ); OIS::InputManager::destroyInputSystem(mInputManager); mInputManager = 0; } } }