备忘:ogre嵌入qt

GraphicOgreImpl具体render:

#ifndef __GraphicOgreImpl_H__
#define __GraphicOgreImpl_H__

#include <Ogre/Ogre.h>
#include <Ogre/OgreSingleton.h>
#include <boost/smart_ptr.hpp>

class GraphicOgreImpl
{
public:
    GraphicOgreImpl(void);
    ~GraphicOgreImpl();

    void init(HWND hwnd, size_t width, size_t height);

    void setRenderProperties();

    void setupResources();
    void loadResources();
    void clearResources();

    bool update();
    bool doFrame();

    void createMainSceneManager();
    void createMainViewPort();
    void createMainCamera();

    void createTestScene();

    void ogreRenderUpdate();

    boost::scoped_ptr<Ogre::Root>       m_pRoot;   
    Ogre::SceneManager*                 m_pMainSceneManager;
    Ogre::RenderWindow*                 m_pMainRenderWindow;
    Ogre::Viewport*                     m_pMainViewPort;
    Ogre::Camera*                       m_pMainCamera;

    bool m_init;
    bool m_exit;
    
};

#endif

#include "GraphicOgreImpl.h"
#include <boost/lexical_cast.hpp>

GraphicOgreImpl::GraphicOgreImpl(void)
{

}

GraphicOgreImpl::~GraphicOgreImpl()
{

}

void GraphicOgreImpl::init(HWND hwnd, size_t width, size_t height)
{
    m_pRoot.reset(new Ogre::Root("plugins_d.cfg"));

    //show pre config window
    if( !m_pRoot->showConfigDialog() )  
    {
        return;
    }

    Ogre::NameValuePairList params;
    params["externalWindowHandle"] = boost::lexical_cast<std::string>((long)hwnd);

    m_pRoot->initialise(false, "XEditor Window");

    m_pMainRenderWindow = m_pRoot->createRenderWindow("MainRenderWindow", width, height, false, & params);

    createMainSceneManager();
    createMainCamera();
    createMainViewPort();

    setupResources();
    loadResources();

    createTestScene();
}

void GraphicOgreImpl::createMainSceneManager()
{
    m_pMainSceneManager = m_pRoot->createSceneManager(Ogre::ST_GENERIC, "MainSceneManager");
}

void GraphicOgreImpl::createMainCamera()
{
    m_pMainCamera = m_pMainSceneManager->createCamera("MainCamera");
    m_pMainCamera->setNearClipDistance(5.0f);
    m_pMainCamera->setPosition(Ogre::Vector3(0, 0, 50));
    m_pMainCamera->lookAt(0, 0, 0);
}

void GraphicOgreImpl::createMainViewPort()
{
    m_pMainViewPort = m_pMainRenderWindow->addViewport(m_pMainCamera);
    //m_pMainCamera->setAspectRatio(m_pMainViewPort->getActualWidth() / m_pMainViewPort->getActualHeight());
    m_pMainViewPort->setBackgroundColour(Ogre::ColourValue(0, 0, 0));
}

void GraphicOgreImpl::setupResources()
{
    //Ogre::ResourceGroupManager::getSingletonPtr()->addResourceLocation("http://www.cnblogs.com/media/packs/Sinbad.zip", "Zip");
    //Ogre::ResourceGroupManager::getSingletonPtr()->initialiseAllResourceGroups();
    Ogre::ConfigFile cf;
    cf.load("resources_d.cfg");
    Ogre::ConfigFile::SectionIterator sect_iter = cf.getSectionIterator();
    Ogre::String sectName, typeName, dataName;
    while(sect_iter.hasMoreElements())
    {
        sectName = sect_iter.peekNextKey();
        Ogre::ConfigFile::SettingsMultiMap* setting_map = sect_iter.getNext();
        Ogre::ConfigFile::SettingsMultiMap::iterator it;
        for (it = setting_map->begin(); it != setting_map->end(); ++it)
        {
            typeName = it->first;
            dataName = it->second;
            Ogre::ResourceGroupManager::getSingletonPtr()->addResourceLocation(dataName, typeName, sectName);
        }
    }
    Ogre::ResourceGroupManager::getSingletonPtr()->initialiseAllResourceGroups();
}

void GraphicOgreImpl::loadResources()
{

}

void GraphicOgreImpl::clearResources()
{

}

void GraphicOgreImpl::setRenderProperties()
{
    
}

void GraphicOgreImpl::ogreRenderUpdate()
{
    m_pRoot->renderOneFrame();
}

void GraphicOgreImpl::createTestScene()
{
    Ogre::Entity* ent = m_pMainSceneManager->createEntity("Sinbad.mesh");
    //Ogre::SceneNode* node = m_pMainSceneManager->createSceneNode("node");
    //node->attachObject(ent);
    m_pMainSceneManager->getRootSceneNode()->attachObject(ent);
}

搭载render的qt widget(timer也可以放在QMainWindow):

#include "OgreRenderWidget.h"

OgreRenderWidget::OgreRenderWidget(QWidget *parent, Qt::WFlags flags, GraphicOgreImpl*m_pGraphicOgreImpl )
    : QMainWindow(parent, flags),
    m_pXRenderScene(new XRenderScene)
{
    //setupUI();
    //createRenderWindow();
    //createRenderScene();
    //buildCallbacks();
    //createActions();
    //createToolbars();
    //setFocusPolicy(Qt::StrongFocus);
    m_pXRenderScene->registerListener();
    //renderFrame为你欲显示ogre内容的窗口,如一个QFrame类
    m_pGraphicOgreImpl->init(renderFrame->winId(), renderFrame->width(), renderFrame->height());
    //设置挂载ogre的窗体刷新速率.
    m_renderTimer.start(33, this); 
} 

void OgreRenderWidget::timerEvent(QTimerEvent* evt) 
{ 
    GraphicOgreImpl::getSingletonPtr()->ogreUpdate(); 
    m_pXRenderScene->update(); 
}

QMainWindow:

#ifndef XEDITOR_H
#define XEDITOR_H

#include <QtGui/QMainWindow>
#include "GraphicOgreImpl.h"
#include "OgreRenderWidget.h"
#include <boost/smart_ptr.hpp>

class XEditor : public QMainWindow
{
    Q_OBJECT

private:
    OgreRenderWidget* m_renderWindow;
    boost::scoped_ptr<GraphicOgreImpl> m_pGraphicImpl;
    //QBasicTimer m_renderTimer;

public:
    XEditor(QWidget *parent = 0, Qt::WFlags flags = 0);
    ~XEditor();
    
    //void timerEvent(QTimerEvent * timerEvent);


};

#endif // XEDITOR_H

#include "xeditor.h"

XEditor::XEditor(QWidget *parent, Qt::WFlags flags)
    : QMainWindow(parent, flags),m_pGraphicImpl(new GraphicOgreImpl())
{
    m_renderWindow = new OgreRenderWidget(this, m_pGraphicImpl.get());
    m_pGraphicImpl->init(m_renderWindow->getHandle(), m_renderWindow->width(), m_renderWindow->height());
    m_renderWindow->startOgreRender();
    setCentralWidget(m_renderWindow);

    //m_renderTimer.start(25,m_renderWindow);
    resize(800, 600);
}

XEditor::~XEditor()
{

}

//void XEditor::timerEvent(QTimerEvent * timerEvent)
//{
//    m_pGraphicImpl->ogreRenderUpdate();
//}