【笔记】六、OGRE与CEGUI中Demo分析

//----------------------------------------------------------------// CEGUI::MouseButton convertOISMouseButtonToCegui(int buttonID) { switch (buttonID) { case 0: return CEGUI::LeftButton; case 1: return CEGUI::RightButton; case 2:return CEGUI::MiddleButton; case 3: return CEGUI::X1Button; default: return CEGUI::LeftButton; } } class GuiFrameListener : public ExampleFrameListener, public OIS::KeyListener, public OIS::MouseListener { private: CEGUI::Renderer* mGUIRenderer; bool mShutdownRequested; public: // 使用带缓冲的输入，这是选择之一 GuiFrameListener(RenderWindow* win, Camera* cam, CEGUI::Renderer* renderer) : ExampleFrameListener(win, cam, true, true, true), mGUIRenderer(renderer), mShutdownRequested(false) { mMouse->setEventCallback(this); mKeyboard->setEventCallback(this); } /// 在下一帧结束时告诉帧监听器退出 void requestShutdown(void) { mShutdownRequested = true; } bool frameEnded(const FrameEvent& evt) { if (mShutdownRequested) return false; else return ExampleFrameListener::frameEnded(evt); } //----------------------------------------------------------------// bool mouseMoved( const OIS::MouseEvent &arg ) { CEGUI::System::getSingleton().injectMouseMove( arg.state.X.rel, arg.state.Y.rel ); return true; } //----------------------------------------------------------------// bool mousePressed( const OIS::MouseEvent &arg, OIS::MouseButtonID id ) { CEGUI::System::getSingleton().injectMouseButtonDown(convertOISMouseButtonToCegui(id)); return true; } //----------------------------------------------------------------// bool mouseReleased( const OIS::MouseEvent &arg, OIS::MouseButtonID id ) { CEGUI::System::getSingleton().injectMouseButtonUp(convertOISMouseButtonToCegui(id)); return true; } //----------------------------------------------------------------// bool keyPressed( const OIS::KeyEvent &arg ) { if( arg.key == OIS::KC_ESCAPE ) mShutdownRequested = true; CEGUI::System::getSingleton().injectKeyDown( arg.key ); CEGUI::System::getSingleton().injectChar( arg.text ); return true; } //----------------------------------------------------------------// bool keyReleased( const OIS::KeyEvent &arg ) { CEGUI::System::getSingleton().injectKeyUp( arg.key ); return true; } }; class GuiApplication : public ExampleApplication { private: CEGUI::OgreCEGUIRenderer* mGUIRenderer; CEGUI::System* mGUISystem; CEGUI::Window* mEditorGuiSheet; CEGUI::Scrollbar* mRed; CEGUI::Scrollbar* mGreen; CEGUI::Scrollbar* mBlue; CEGUI::Window* mPreview; // StaticImage CEGUI::Window* mTip; CEGUI::Listbox* mList; CEGUI::Window* mEditBox; typedef std::map<CEGUI::String, CEGUI::String> DescriptionMap; DescriptionMap mDescriptionMap; public: GuiApplication() : mGUIRenderer(0), mGUISystem(0), mEditorGuiSheet(0) { mDescriptionMap[(CEGUI::utf8*)"Demo8"] = (CEGUI::utf8*)"The main containing panel"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1"] = (CEGUI::utf8*)"A test window"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Listbox"] = (CEGUI::utf8*)"A list box"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/Red"] = (CEGUI::utf8*)"A colour slider"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/Green"] = (CEGUI::utf8*)"A colour slider"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/Blue"] = (CEGUI::utf8*)"A colour slider"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/ColourSample"] = (CEGUI::utf8*)"The colour that will be used for the selection when added to the list"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/Editbox"] = (CEGUI::utf8*)"An edit box; this text will be added to the list"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/Add"] = (CEGUI::utf8*)"Adds the text to the list"; mDescriptionMap[(CEGUI::utf8*)"Demo8/Window1/Controls/ins1"] = (CEGUI::utf8*)"Some static text"; } ~GuiApplication() { if(mEditorGuiSheet) { CEGUI::WindowManager::getSingleton().destroyWindow(mEditorGuiSheet); } if(mGUISystem) { delete mGUISystem; mGUISystem = 0; } if(mGUIRenderer) { delete mGUIRenderer; mGUIRenderer = 0; } } protected: // 场景的创建 void createScene(void) { // 环境光设置 mSceneMgr->setAmbientLight(ColourValue(0.5, 0.5, 0.5)); // 创建天空穹 mSceneMgr->setSkyDome(true, "Examples/CloudySky", 5, 8); // 创建一个灯光 Light* l = mSceneMgr->createLight("MainLight"); // 默认设置为：点光源，白色的漫反射逛，这里仅仅设置光源的位置 // 如果想随着其他对象进行移动，这里可以将灯光挂载到一个场景结 // 点。这里不这么做 l->setPosition(20,80,50); // 启动GUI mGUIRenderer = new CEGUI::OgreCEGUIRenderer(mWindow/*渲染窗口句柄*/, Ogre::RENDER_QUEUE_OVERLAY, false, 3000, mSceneMgr/*场景管理器*/); mGUISystem = new CEGUI::System(mGUIRenderer); // 启动CEGUI日志记录功能 CEGUI::Logger::getSingleton().setLoggingLevel(CEGUI::Informative); // 在场景中加载一个实体 Entity* ogreHead = mSceneMgr->createEntity("Head", "ogrehead.mesh"); SceneNode* headNode = mSceneMgr->getRootSceneNode()->createChildSceneNode(); headNode->attachObject(ogreHead); // 将材质渲染到预览窗口 TexturePtr rttTex = TextureManager::getSingleton().createManual("RttTex", ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, TEX_TYPE_2D, 512, 512, 1, 0, PF_R8G8B8, TU_RENDERTARGET); { Camera* rttCam = mSceneMgr->createCamera("RttCam");// 创建一个摄像机 SceneNode* camNode = mSceneMgr->getRootSceneNode()->createChildSceneNode("rttCamNode"); camNode->attachObject(rttCam);// 将摄像机绑定到场景结点rttCamNode上 rttCam->setPosition(0,0,200); // 设置摄像机的位置 //rttCam->setVisible(true); // 视口的设置 Viewport *v = rttTex->getBuffer()->getRenderTarget()->addViewport( rttCam ); v->setOverlaysEnabled(false); v->setClearEveryFrame( true ); v->setBackgroundColour( ColourValue::Black ); } // Retrieve CEGUI texture for the RTT CEGUI::Texture* rttTexture = mGUIRenderer->createTexture((CEGUI::utf8*)"RttTex"); CEGUI::Imageset* rttImageSet = CEGUI::ImagesetManager::getSingleton().createImageset( (CEGUI::utf8*)"RttImageset", rttTexture); rttImageSet->defineImage((CEGUI::utf8*)"RttImage", CEGUI::Point(0.0f, 0.0f), CEGUI::Size(rttTexture->getWidth(), rttTexture->getHeight()), CEGUI::Point(0.0f,0.0f)); // 加载scheme并设置默认值 CEGUI::SchemeManager::getSingleton().loadScheme( (CEGUI::utf8*)"TaharezLookSkin.scheme"); mGUISystem->setDefaultMouseCursor(// 设置鼠标光标 (CEGUI::utf8*)"TaharezLook", (CEGUI::utf8*)"MouseArrow"); mGUISystem->setDefaultFont((CEGUI::utf8*)"BlueHighway-12");// 设置界面显示的默认字体 CEGUI::Window* sheet = CEGUI::WindowManager::getSingleton().loadWindowLayout( (CEGUI::utf8*)"ogregui.layout"); // 加载整体界面布局layout mGUISystem->setGUISheet(sheet); CEGUI::Combobox* objectComboBox = (CEGUI::Combobox*)CEGUI::WindowManager::getSingleton().getWindow("OgreGuiDemo/TabCtrl/Page2/ObjectTypeList"); CEGUI::ListboxTextItem* item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"FrameWindow", 0); objectComboBox->addItem(item); item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"Horizontal Scrollbar", 1); objectComboBox->addItem(item); item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"Vertical Scrollbar", 2); objectComboBox->addItem(item); item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"StaticText", 3); objectComboBox->addItem(item); item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"StaticImage", 4); objectComboBox->addItem(item); item = new CEGUI::ListboxTextItem((CEGUI::utf8*)"Render to Texture", 5); objectComboBox->addItem(item); setupEventHandlers(); } // 创建一个新的帧监听器 void createFrameListener(void) { mFrameListener= new GuiFrameListener(mWindow, mCamera, mGUIRenderer); mRoot->addFrameListener(mFrameListener); } void setupEventHandlers(void) {// 事件处理 CEGUI::WindowManager& wmgr = CEGUI::WindowManager::getSingleton(); wmgr.getWindow((CEGUI::utf8*)"OgreGuiDemo/TabCtrl/Page1/QuitButton") ->subscribeEvent( CEGUI::PushButton::EventClicked, CEGUI::Event::Subscriber(&GuiApplication::handleQuit, this));// 退出按钮事件处理 wmgr.getWindow((CEGUI::utf8*)"OgreGuiDemo/TabCtrl/Page1/NewButton") ->subscribeEvent( CEGUI::PushButton::EventClicked, CEGUI::Event::Subscriber(&GuiApplication::handleNew, this));// 新建按钮事件处理 wmgr.getWindow((CEGUI::utf8*)"OgreGuiDemo/TabCtrl/Page1/LoadButton") ->subscribeEvent( CEGUI::PushButton::EventClicked, CEGUI::Event::Subscriber(&GuiApplication::handleLoad, this));// 载入按钮事件处理 wmgr.getWindow((CEGUI::utf8*)"OgreGuiDemo/TabCtrl/Page2/ObjectTypeList") ->subscribeEvent( CEGUI::Combobox::EventListSelectionAccepted, CEGUI::Event::Subscriber(&GuiApplication::handleObjectSelection, this));// 提交按钮事件处理 } void setupEnterExitEvents(CEGUI::Window* win) { win->subscribeEvent( CEGUI::Window::EventMouseEnters, CEGUI::Event::Subscriber(&GuiApplication::handleMouseEnters, this));// 鼠标移入 win->subscribeEvent( CEGUI::Window::EventMouseLeaves, CEGUI::Event::Subscriber(&GuiApplication::handleMouseLeaves, this));// 鼠标移除 for (unsigned int i = 0; i < win->getChildCount(); ++i) { CEGUI::Window* child = win->getChildAtIdx(i); setupEnterExitEvents(child); } } void setupLoadedLayoutHandlers(void) { CEGUI::WindowManager& wmgr = CEGUI::WindowManager::getSingleton(); mRed = static_cast<CEGUI::Scrollbar*>( wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/Red")); mGreen = static_cast<CEGUI::Scrollbar*>( wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/Green")); mBlue = static_cast<CEGUI::Scrollbar*>( wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/Blue")); mPreview = wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/ColourSample"); mList = static_cast<CEGUI::Listbox*>( wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Listbox")); mEditBox = wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/Editbox"); mTip = wmgr.getWindow((CEGUI::utf8*)"Demo8/Window2/Tips"); mRed->subscribeEvent( CEGUI::Scrollbar::EventScrollPositionChanged, CEGUI::Event::Subscriber(&GuiApplication::handleColourChanged, this)); mGreen->subscribeEvent( CEGUI::Scrollbar::EventScrollPositionChanged, CEGUI::Event::Subscriber(&GuiApplication::handleColourChanged, this)); mBlue->subscribeEvent( CEGUI::Scrollbar::EventScrollPositionChanged, CEGUI::Event::Subscriber(&GuiApplication::handleColourChanged, this)); wmgr.getWindow((CEGUI::utf8*)"Demo8/Window1/Controls/Add") ->subscribeEvent( CEGUI::PushButton::EventClicked, CEGUI::Event::Subscriber(&GuiApplication::handleAdd, this)); CEGUI::Window* root = wmgr.getWindow("Demo8"); setupEnterExitEvents(root); } CEGUI::Window* createRttGuiObject(void) { static unsigned int rttCounter = 0; String guiObjectName = "NewRttImage" + StringConverter::toString(rttCounter); CEGUI::Imageset* rttImageSet = CEGUI::ImagesetManager::getSingleton().getImageset( (CEGUI::utf8*)"RttImageset"); CEGUI::Window* si = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/StaticImage", (CEGUI::utf8*)guiObjectName.c_str()); si->setSize(CEGUI::UVector2( CEGUI::UDim(0.5f, 0), CEGUI::UDim(0.4f, 0))); si->setProperty("Image", CEGUI::PropertyHelper::imageToString( &rttImageSet->getImage((CEGUI::utf8*)"RttImage"))); rttCounter++; return si; } CEGUI::Window* createStaticImageObject(void) { static unsigned int siCounter = 0; String guiObjectName = "NewStaticImage" + StringConverter::toString(siCounter); CEGUI::Imageset* imageSet = CEGUI::ImagesetManager::getSingleton().getImageset( (CEGUI::utf8*)"TaharezLook"); CEGUI::Window* si = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/StaticImage", (CEGUI::utf8*)guiObjectName.c_str()); si->setSize(CEGUI::UVector2( CEGUI::UDim(0.2f, 0), CEGUI::UDim(0.2f, 0))); si->setProperty("Image", CEGUI::PropertyHelper::imageToString( &imageSet->getImage((CEGUI::utf8*)"ClientBrush"))); siCounter++; return si; } bool handleQuit(const CEGUI::EventArgs& e) { static_cast<GuiFrameListener*>(mFrameListener)->requestShutdown(); return true; } bool handleNew(const CEGUI::EventArgs& e) { if(mEditorGuiSheet) CEGUI::WindowManager::getSingleton().destroyWindow(mEditorGuiSheet); mEditorGuiSheet = CEGUI::WindowManager::getSingleton().createWindow("DefaultGUISheet", "NewLayout"); CEGUI::Window* editorWindow = CEGUI::WindowManager::getSingleton().getWindow((CEGUI::utf8*)"OgreGuiDemo2/MainWindow"); editorWindow->addChildWindow(mEditorGuiSheet); return true; } bool handleLoad(const CEGUI::EventArgs& e) { if(mEditorGuiSheet) CEGUI::WindowManager::getSingleton().destroyWindow(mEditorGuiSheet); mEditorGuiSheet = CEGUI::WindowManager::getSingleton().loadWindowLayout( (CEGUI::utf8*)"cegui8.layout"); setupLoadedLayoutHandlers(); CEGUI::Window* editorWindow = CEGUI::WindowManager::getSingleton().getWindow((CEGUI::utf8*)"OgreGuiDemo2/MainWindow"); editorWindow->addChildWindow(mEditorGuiSheet); return true; } bool handleObjectSelection(const CEGUI::EventArgs& e) { static unsigned int windowNumber = 0; static unsigned int vertScrollNumber = 0; static unsigned int horizScrollNumber = 0; static unsigned int textScrollNumber = 0; String guiObjectName; CEGUI::Window* window = 0; // 将这个对象放置在一个随机的位置 Real posX = Math::RangeRandom(0.0, 0.7); Real posY = Math::RangeRandom(0.1, 0.7); const CEGUI::WindowEventArgs& windowEventArgs = static_cast<const CEGUI::WindowEventArgs&>(e); CEGUI::ListboxItem* item = static_cast<CEGUI::Combobox*>(windowEventArgs.window)->getSelectedItem(); CEGUI::Window* editorWindow = CEGUI::WindowManager::getSingleton().getWindow((CEGUI::utf8*)"OgreGuiDemo2/MainWindow"); switch(item->getID()) { case 0: guiObjectName = "NewWindow" + StringConverter::toString(windowNumber); window = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/FrameWindow", (CEGUI::utf8*)guiObjectName.c_str()); window->setSize(CEGUI::UVector2(CEGUI::UDim(0.3f,0), CEGUI::UDim(0.3f,0))); window->setText((CEGUI::utf8*)"New Window"); windowNumber++; break; case 1: guiObjectName = "NewHorizScroll" + StringConverter::toString(horizScrollNumber); window = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/HorizontalScrollbar", (CEGUI::utf8*)guiObjectName.c_str()); window->setSize(CEGUI::UVector2(CEGUI::UDim(0.75f,0), CEGUI::UDim(0.03f,0))); horizScrollNumber++; break; case 2: guiObjectName = "NewVertScroll" + StringConverter::toString(vertScrollNumber); window = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/VerticalScrollbar", (CEGUI::utf8*)guiObjectName.c_str()); window->setSize(CEGUI::UVector2(CEGUI::UDim(0.03f,0), CEGUI::UDim(0.75f,0))); vertScrollNumber++; break; case 3: guiObjectName = "NewStaticText" + StringConverter::toString(textScrollNumber); window = CEGUI::WindowManager::getSingleton().createWindow((CEGUI::utf8*)"TaharezLook/StaticText", (CEGUI::utf8*)guiObjectName.c_str()); window->setSize(CEGUI::UVector2(CEGUI::UDim(0.25f,0), CEGUI::UDim(0.1f,0))); window->setText((CEGUI::utf8*)"Example static text"); textScrollNumber++; break; case 4: window = createStaticImageObject(); break; case 5: window = createRttGuiObject(); break; }; editorWindow->addChildWindow(window); window->setPosition(CEGUI::UVector2(CEGUI::UDim(posX, 0), CEGUI::UDim(posY, 0))); return true; } bool handleColourChanged(const CEGUI::EventArgs& e) {// 颜色改变 mPreview->setProperty("ImageColours", CEGUI::PropertyHelper::colourToString(CEGUI::colour( mRed->getScrollPosition() / 255.0f, mGreen->getScrollPosition() / 255.0f, mBlue->getScrollPosition() / 255.0f))); return true; } bool handleAdd(const CEGUI::EventArgs& e) {// 添加按钮处理 CEGUI::ListboxTextItem *listboxitem = new CEGUI::ListboxTextItem (mEditBox->getText()); listboxitem->setSelectionBrushImage("TaharezLook", "ListboxSelectionBrush"); listboxitem->setSelected(mList->getItemCount() == 0); listboxitem->setSelectionColours( CEGUI::PropertyHelper::stringToColourRect(mPreview->getProperty("ImageColours"))); mList->addItem(listboxitem); return true; } bool handleMouseEnters(const CEGUI::EventArgs& e) {// 鼠标移入 CEGUI::WindowEventArgs& we = ((CEGUI::WindowEventArgs&)e); DescriptionMap::iterator i = // 取得当前鼠标的窗体名称，并显示之 mDescriptionMap.find(we.window->getName()); if (i != mDescriptionMap.end()) { mTip->setText(i->second); } else { mTip->setText((CEGUI::utf8*)""); } return true; } bool handleMouseLeaves(const CEGUI::EventArgs& e) {// 鼠标移除，显示tips置空 mTip->setText((CEGUI::utf8*)""); return true; } };