/cygdrive/d/src/svn/vrut/trunk/core/src/scenemanager.cpp

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/*
 * $Id: scenemanager.cpp 481 2008-11-15 16:36:05Z kybav1 $
 *
 * Description  : One line description of file.
 * Author       : Vaclav Kyba <mail/Jabber: vaseo1@gmail.com>  <ICQ: 98576293>
 *
 * Purpose      :
 *     Long description of what the file is for.
 */


#include <wx/image.h>
#include "scenemanager.h"
#include "flexilog.h"
#include "imagrgb.h"
#include "events.h"
#include "kernel.h"

using namespace VRUT;


SceneManager::SceneManager()
{
       wxImage::AddHandler(new wxRGBHandler());
}


SceneManager::~SceneManager()
{
       SAFE_DELETE_ARR_EACH(sceneList, sceneList.size());
       ImageList::iterator it = imageList.begin();
       for ( ; it != imageList.end(); it++)
              SAFE_DELETE(it->second);
}


size_t SceneManager::GetSceneIDs(std::vector<SCENE_ID> &IDlist) const
{
       IDlist.clear();
       for (size_t i=0; i<sceneList.size(); i++)
       {
              if (sceneList[i])
                     IDlist.push_back(SCENE_ID(i));
       }
       return IDlist.size();
}


SCENE_ID SceneManager::AddSceneGraph(SceneNode * sceneRoot)
{
       SCENE_ID id = SCENE_ID(sceneList.size());
       Scene * scene = new Scene(id, KERNEL->GetMessageSink());
       scene->Insert(sceneRoot, NODE_ID_NONE);
       sceneList.push_back(scene);
       scene->sceneManager = this;
       return id;
}


Scene * SceneManager::RemoveSceneGraph(SCENE_ID id)
{
       Scene * scene = GetScene(id);
       if (scene)
       {
              sceneList[id] = (Scene *)NULL;
              scene->sceneManager = (SceneManager *)NULL;
       }
       return scene;
}


const Image * SceneManager::GetImage(const wxString & imgPath, bool loadIfNotFound)
{
       ImageList::iterator img = imageList.find(imgPath);
       if (img != imageList.end())
              return img->second;
       else if (loadIfNotFound)
       {
              wxFileName fname(imgPath);
              Image * image = (Image *)NULL;
              if (fname.GetExt().IsSameAs(wxT("dds"), false))
                     image = new ImageDDS;
              else
                     image = new ImageCommon;
              if (image && image->Load(imgPath))
              {
                     ImageList::Insert_Result res = imageList.insert(ImageList::value_type(imgPath, image));
                     if (res.second)
                     {
                            wxCommandEvent evRes = Event::GET_EVT_SCENE_IMAGE_ADDED(imgPath);
                            KERNEL->GetMessageSink()->PostEvent(evRes);
                            return image;
                     }
              }
              else
                     SAFE_DELETE(image);
       }

       return (Image *)NULL;
}

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