#include "toonz/toonzscene.h"

// TnzLib includes
#include "toonz/txsheet.h"
#include "toonz/txshcell.h"
#include "toonz/txshsimplelevel.h"
#include "toonz/txshchildlevel.h"
#include "toonz/txshleveltypes.h"
#include "toonz/txshlevelcolumn.h"
#include "toonz/txshsoundcolumn.h"
#include "toonz/txshsoundlevel.h"
#include "toonz/sceneproperties.h"
#include "toonz/stage.h"
#include "toonz/stagevisitor.h"
#include "toonz/levelset.h"
#include "toonz/tstageobjecttree.h"
#include "toonz/observer.h"
#include "toonz/namebuilder.h"
#include "toonz/tproject.h"
#include "toonz/toonzimageutils.h"
#include "toonz/childstack.h"
#include "toonz/levelproperties.h"
#include "toonz/tcamera.h"
#include "toonz/sceneresources.h"
#include "toonz/preferences.h"
#include "toonz/fullcolorpalette.h"
#include "toonz/txshpalettecolumn.h"
#include "toonz/txshpalettelevel.h"
#include "toonz/toonzfolders.h"

// TnzCore includes
#include "timagecache.h"
#include "tstream.h"
#include "tstreamexception.h"
#include "tofflinegl.h"
#include "tenv.h"
#include "tsystem.h"
#include "tfiletype.h"
#include "tlevel_io.h"
#include "ttoonzimage.h"
#include "tlogger.h"
#include "tvectorimage.h"
#include "tcontenthistory.h"
#include "toutputproperties.h"
#include "trop.h"

TOfflineGL *currentOfflineGL = 0;

#include <QProgressDialog>
//=============================================================================
// Utility functions
//=============================================================================
namespace
{

const VersionNumber l_currentVersion(71, 0);

//-----------------------------------------------------------------------------

std::string getFolderName(int levelType)
{
	switch (levelType) {
	case TZI_XSHLEVEL:
		return TProject::Inputs;
	case PLI_XSHLEVEL:
		return TProject::Drawings;
	case TZP_XSHLEVEL:
		return TProject::Drawings;
	case OVL_XSHLEVEL:
		return TProject::Extras;
	default:
		return TProject::Extras;
	}
}

//-----------------------------------------------------------------------------

/*
TFilePath adjustTypeAndFrame(int levelType, TFilePath fp)
{
  switch(levelType)
  {
    case TZI_XSHLEVEL:
      if(fp.getType()=="") fp=fp.withType("tif");
      return fp.withFrame(TFrameId::EMPTY_FRAME);
    case PLI_XSHLEVEL:
      return fp.withFrame(TFrameId::NO_FRAME)
               .withType("pli");
    case TZP_XSHLEVEL:
      return fp.withFrame(TFrameId::NO_FRAME)
               .withType("tlv");
    case OVL_XSHLEVEL:
    default:
      if(fp.getType()=="") fp=fp.withType("png");
      return fp;
  }
}
*/

//-----------------------------------------------------------------------------

TFilePath getUntitledScenesDir()
{
	return ToonzFolder::getCacheRootFolder() + "temp";
}

//-----------------------------------------------------------------------------

// se path = head + tail ritorna true e assegna head
bool checkTail(TFilePath path, TFilePath tail, TFilePath &head)
{
	for (;;) {
		if (tail == TFilePath()) {
			head = path;
			return true;
		}
		if (path == TFilePath())
			return false;
		if (path.withoutParentDir() != tail.withoutParentDir())
			return false;
		path = path.getParentDir();
		tail = tail.getParentDir();
	}
}

//-----------------------------------------------------------------------------

void makeSceneIcon(ToonzScene *scene)
{
	TDimension cameraSize = scene->getCurrentCamera()->getRes();

	int maxSize = 128;
	TDimension iconCameraSize = cameraSize;
	if (cameraSize.lx > cameraSize.ly) {
		iconCameraSize.ly = maxSize * cameraSize.ly / cameraSize.lx;
		iconCameraSize.lx = maxSize;
	} else {
		iconCameraSize.lx = maxSize * cameraSize.lx / cameraSize.ly;
		iconCameraSize.ly = maxSize;
	}

	TRaster32P ras(iconCameraSize);
	TPixel32 bgColor = scene->getProperties()->getBgColor();
	ras->fill(bgColor);
	scene->renderFrame(ras, 0);

	TFilePath iconPath = scene->getIconPath();
	if (TSystem::touchParentDir(iconPath))
		TImageWriter::save(iconPath, ras);
}

//-----------------------------------------------------------------------------

void deleteUntitledScene(const TFilePath &fp)
{
	if (TFileStatus(fp).isDirectory()) {
		TFilePath tempDir = getUntitledScenesDir();
		if (TFileStatus(tempDir).isDirectory() &&
			tempDir.isAncestorOf(fp)) // per sicurezza
		{
			try {
				TSystem::rmDirTree(fp);
			} catch (...) {
				assert(0);
			}
		} else
			assert(0);
	}
}

//-----------------------------------------------------------------------------
/*-- TODO: オプション化して復活させるか、検討のこと --*/
/*
void saveBackup(const TFilePath &fp)
{
  if(!TFileStatus(fp).doesExist()) return;
	wstring sceneName = fp.getWideName();
  TFilePath bckDir = fp.getParentDir() + "backups" + sceneName;
  if(!TFileStatus(bckDir).doesExist())
  {
    try {TSystem::mkDir(bckDir);}
    catch(...) {return;}
  }

  std::map<int, TFilePath> oldBackups;
  TFilePathSet lst = TSystem::readDirectory(bckDir);
  for(TFilePathSet::iterator it = lst.begin(); it != lst.end(); ++it)
  {
    TFilePath fp2 = *it;
    if(fp2.getType() != "tnz" && fp2.getType() != "tab") continue;
    wstring name = fp2.getWideName();
    if(name.find_first_of(L"0123456789") == wstring::npos) continue;
		int i = name.find(sceneName);
		if(i != wstring::npos)
			name = name.substr(sceneName.size()+1);
    if(name == L"" || name.find_first_not_of(L"0123456789") != wstring::npos)
      continue;
    int index = toInt(name);
    assert(0<index);
    assert(oldBackups.count(index)==0);
    oldBackups[index] = fp2;
  }

  int m = 3;
  if((int)oldBackups.size()>m)
  {
    std::map<int, TFilePath>::iterator it = oldBackups.begin();
    for(int i=0;i+m<(int)oldBackups.size();i++)
    {
      assert(it != oldBackups.end());
      TFilePath toKill = it->second;
      try {TSystem::deleteFile(toKill); } catch(...) {}
      ++it;
    }
  }
  
  TFilePath bckFp;
  if(oldBackups.empty())
  {
    if(fp.getType() == "tnz")
      bckFp = bckDir + TFilePath(sceneName + L"_1.tnz");
    else if(fp.getType() == "tab")
      bckFp = bckDir + TFilePath(sceneName + L"_1.tab");
  }
  else
  {
    int id = oldBackups.rbegin()->first + 1;
    if(fp.getType() == "tnz")
      bckFp = bckDir + TFilePath(sceneName + L"_" + ::to_wstring(id) + L".tnz");
    else if(fp.getType() == "tab")
      bckFp = bckDir + TFilePath(sceneName + L"_" + ::to_wstring(id) + L".tab");
  }

  TSystem::renameFile(bckFp, fp);
}
*/

//-----------------------------------------------------------------------------

// serve per correggere un problema verificatosi da Bianco (con la beta3)
// vengono create coppie di livelli con lo stesso nome e in genere path diverso

void fixBiancoProblem(ToonzScene *scene, TXsheet *xsh)
{
	TLevelSet *levelSet = scene->getLevelSet();
	std::set<TXsheet *> visited, tovisit;
	tovisit.insert(xsh);
	while (!tovisit.empty()) {
		xsh = *tovisit.begin();
		xsh->setScene(scene); // sound problem
		visited.insert(xsh);
		tovisit.erase(xsh);
		int c0 = 0, c1 = xsh->getColumnCount() - 1;
		for (int c = c0; c <= c1; c++) {
			if (xsh->isColumnEmpty(c))
				continue;
			TXshColumn *column = xsh->getColumn(c);
			if (!column || !column->getLevelColumn())
				continue;
			TXshLevelColumn *lcolumn = column->getLevelColumn();
			int r0 = 0, r1 = -1;
			lcolumn->getRange(r0, r1);
			for (int r = r0; r <= r1; r++) {
				TXshCell cell = lcolumn->getCell(r);
				if (cell.isEmpty())
					continue;
				TXshLevel *xl = cell.m_level.getPointer();
				scene->getLevelSet()->insertLevel(xl); // per sicurezza
				xl->setScene(scene);
				if (TXshChildLevel *childLevel = xl->getChildLevel()) {
					TXsheet *childXsh = childLevel->getXsheet();
					if (visited.count(childXsh) > 0)
						continue;
					tovisit.insert(childXsh);
				} else {
					TXshLevel *xl2 = levelSet->getLevel(xl->getName());
					if (xl2) {
						if (xl2 != xl) {
							cell.m_level = xl2;
							lcolumn->setCell(r, cell);
						}
					} else {
						xl->setScene(scene);
						levelSet->insertLevel(xl);
					}
				}
			}
		}
	}
}

//-----------------------------------------------------------------------------
} // namespace
//-----------------------------------------------------------------------------

//=============================================================================

void deleteAllUntitledScenes()
{
	TFilePath tempDir = getUntitledScenesDir();
	try {
		if (TFileStatus(tempDir).isDirectory()) {
			TFilePathSet fps;
			TSystem::readDirectory(fps, tempDir);
			TFilePathSet::iterator fpsIt;
			for (fpsIt = fps.begin(); fpsIt != fps.end(); ++fpsIt) {
				TFilePath fp = *fpsIt;
				if (TFileStatus(fp).isDirectory() && fp.getName().find("untitled") != -1)
					TSystem::rmDirTree(fp);
			}
		}
	} catch (...) {
	}
}

//=============================================================================
// ToonzScene

ToonzScene::ToonzScene()
	: m_contentHistory(0), m_isUntitled(true)
{
	m_childStack = new ChildStack(this);
	m_properties = new TSceneProperties();
	m_levelSet = new TLevelSet();
	m_project = new TProject();
	m_project->addRef();
}

//-----------------------------------------------------------------------------

ToonzScene::~ToonzScene()
{
	delete m_properties;
	delete m_levelSet;
	delete m_childStack;
	delete m_contentHistory;

	assert(m_project);
	if (m_project)
		m_project->release();
}

//-----------------------------------------------------------------------------

void ToonzScene::setSceneName(std::wstring name)
{
	m_scenePath = m_scenePath.withName(name);
}

//-----------------------------------------------------------------------------

void ToonzScene::clear()
{
	if (isUntitled())
		deleteUntitledScene(getScenePath().getParentDir());

	m_childStack->clear();

	m_scenePath = TFilePath();
	TSceneProperties *properties = m_properties;
	m_properties = new TSceneProperties();
	delete properties;
	m_levelSet->clear();
}

//-----------------------------------------------------------------------------

void ToonzScene::setProject(TProject *project)
{
	assert(project);

	if (project != m_project) {
		if (project)
			project->addRef();
		if (m_project)
			m_project->release();
		m_project = project;
	}
}

//-----------------------------------------------------------------------------

TProject *ToonzScene::getProject() const
{
	return m_project;
}

//-----------------------------------------------------------------------------

void ToonzScene::setScenePath(const TFilePath &fp)
{
	m_scenePath = fp;
	m_isUntitled = false;
}

//-----------------------------------------------------------------------------

bool ToonzScene::isUntitled() const
{
	return m_scenePath == TFilePath() || m_isUntitled;
}

//-----------------------------------------------------------------------------

void ToonzScene::load(const TFilePath &path, bool withProgressDialog)
{
	loadNoResources(path);			   // This loads a version number ..
	loadResources(withProgressDialog); // .. this uses the version number ..

	setVersionNumber(VersionNumber()); // .. but scene instances in memory do not retain
} // a version number beyond resource loading

//-----------------------------------------------------------------------------

//Funzioncina veloce per trovare il numero di frame di una scena senza caricare
//nulla. (implementato per Toonz 6.0 beta 1)
int ToonzScene::loadFrameCount(const TFilePath &fp)
{
	TIStream is(fp);
	if (!is)
		throw TException(fp.getWideString() + L": Can't open file");
	try {
		//Leggo il primo tag (<tnz/tab>) ed estraggo il framecount (se c'e')
		std::string tagName = "";
		if (!is.matchTag(tagName))
			throw TException("Bad file format");

		if (tagName == "tab" || tagName == "tnz") {
			int frameCount;
			if (is.getTagParam("framecount", frameCount))
				return frameCount;
			else
				return 0;
		} else
			throw TException("Bad file format");
	} catch (TException &e) {
		throw TIStreamException(is, e);
	} catch (...) {
		throw TIStreamException(is);
	}

	return 0;
}

//-----------------------------------------------------------------------------

void ToonzScene::loadNoResources(const TFilePath &fp)
{
	clear();

	TProjectManager *pm = TProjectManager::instance();
	TProjectP sceneProject = pm->loadSceneProject(fp);
	if (!sceneProject)
		return;

	setProject(sceneProject.getPointer());

	loadTnzFile(fp);
	getXsheet()->updateFrameCount();
}

//-----------------------------------------------------------------------------
/*-- プログレスダイアログをGUIからの実行時でのみ表示させる。tcomposerから実行の場合は表示させない --*/
void ToonzScene::loadResources(bool withProgressDialog)
{
	/*--- m_levelSet->getLevelCount()が10個以上のとき表示させる　---*/
	QProgressDialog *progressDialog = 0;
	if (withProgressDialog && m_levelSet->getLevelCount() >= 10) {
		progressDialog = new QProgressDialog("Loading Scene Resources", "", 0, m_levelSet->getLevelCount());
		progressDialog->setModal(true);
		progressDialog->setAutoReset(true);						  /*--maximumに到達したら自動でresetを呼ぶ--*/
		progressDialog->setAutoClose(true);						  /*--resetが呼ばれたら自動で閉じる--*/
		progressDialog->setAttribute(Qt::WA_DeleteOnClose, true); /*--閉じたら自動でDeleteされる--*/
		progressDialog->setCancelButton(0);
		progressDialog->setValue(0);
		progressDialog->show();
	}

	int i;
	for (i = 0; i < m_levelSet->getLevelCount(); i++) {
		if (progressDialog)
			progressDialog->setValue(i + 1);

		TXshLevel *level = m_levelSet->getLevel(i);
		try {
			level->load();
		} catch (...) {
		}
	}
	getXsheet()->updateFrameCount();
}

//-----------------------------------------------------------------------------

void ToonzScene::loadTnzFile(const TFilePath &fp)
{
	bool reading22 = false;
	TIStream is(fp);
	if (!is)
		throw TException(fp.getWideString() + L": Can't open file");
	try {
		std::string tagName = "";
		if (!is.matchTag(tagName))
			throw TException("Bad file format");

		if (tagName == "tab" || tagName == "tnz") {
			std::string rootTagName = tagName;
			std::string v = is.getTagAttribute("version");
			VersionNumber versionNumber(0, 0);
			int k = v.find(".");
			if (k != (int)std::string::npos && 0 < k && k < (int)v.length()) {
				versionNumber.first = std::stoi(v.substr(0, k));
				versionNumber.second = std::stoi(v.substr(k + 1));
			}
			if (versionNumber == VersionNumber(0, 0))
				throw TException("Bad version number :" + v);
			setVersionNumber(versionNumber);
			is.setVersion(versionNumber);
			while (is.matchTag(tagName)) {
				if (tagName == "generator") {
					std::string program = is.getString();
					reading22 = program.find("2.2") != std::string::npos;
				} else if (tagName == "properties")
					m_properties->loadData(is, false);
				else if (tagName == "palette") // per compatibilita' beta1
				{
					TPalette *palette = new TPalette;
					is >> *palette;
					delete palette;
				} else if (tagName == "levelSet")
					m_levelSet->loadData(is);
				else if (tagName == "levels") {
					// obsoleto
					if (!reading22)
						assert(0);
					while (!is.eos()) {
						TPersist *p = 0;
						is >> p;
						TXshLevel *xshLevel = dynamic_cast<TXshLevel *>(p);
						if (xshLevel) {
							xshLevel->setScene(this);
							TXshSimpleLevel *sl = xshLevel->getSimpleLevel();
							if (reading22 && sl && sl->getPath() == TFilePath()) {
								sl->setType(PLI_XSHLEVEL);
								sl->setPath(TFilePath("+drawings/") + (sl->getName() + L".pli"));
							}
							m_levelSet->insertLevel(xshLevel);
						}
					}
				} else if (tagName == "xsheet")
					is >> *getXsheet();
				else if (tagName == "history") {
					std::string historyData, s;
					while (!is.eos()) {
						is >> s;
						historyData += s;
					}
					TContentHistory *history = getContentHistory(true);
					history->deserialize(QString::fromStdString(historyData));
				} else
					throw TException(tagName + " : unexpected tag");

				if (!is.matchEndTag())
					throw TException(tagName + " : missing end tag");
			}
			if (!is.matchEndTag())
				throw TException(rootTagName + " : missing end tag");
		} else
			throw TException("Bad file format");

		setScenePath(fp);

		for (int i = 0; i < m_levelSet->getLevelCount(); i++)
			m_levelSet->getLevel(i)->setScene(this);

	} catch (TException &e) {
		throw TIStreamException(is, e);
	} catch (...) {
		throw TIStreamException(is);
	}

	m_properties->cloneCamerasTo(getXsheet()->getStageObjectTree());
	fixBiancoProblem(this, getXsheet());
}

//-----------------------------------------------------------------------------

// saveUntitled() viene chiamata subito dopo newScene
// serve principalmente come lock per evitare che vengano create due scene
// con lo stesso nome.

void ToonzScene::setUntitled()
{
	m_isUntitled = true;
	const std::string baseName = "untitled";
	TFilePath tempDir = getUntitledScenesDir();
	if (TFileStatus(tempDir).doesExist() == false) {
		try {
			TSystem::mkDir(tempDir);
		} catch (...) {
		}
	}

	std::string name = baseName;
	if (TFileStatus(tempDir + name).doesExist()) {
		int count = 2;
		do {
			name = baseName + std::to_string(count++);
		} while (TFileStatus(tempDir + name).doesExist());
	}
	TFilePath fp = tempDir + name + (name + ".tnz");
	try {
		TSystem::touchParentDir(fp);
	} catch (...) {
		assert(0);
	}
	m_scenePath = fp;
}

//-----------------------------------------------------------------------------

//When saving as sub-xsheet, the sub becomes top. So, its cameras must be
//associated to the scene properties.
class CameraRedirection
{
	ToonzScene *m_scene;
	TXsheet *m_xsh;

public:
	CameraRedirection(ToonzScene *scene, TXsheet *xsh)
		: m_scene(scene), m_xsh(xsh)
	{
		if (!xsh)
			xsh = m_scene->getTopXsheet();

		m_scene->getProperties()->cloneCamerasFrom(xsh->getStageObjectTree());
	}

	~CameraRedirection()
	{
		if (m_xsh)
			m_scene->getProperties()->cloneCamerasFrom(m_scene->getTopXsheet()->getStageObjectTree());
	}
};

//-----------------------------------------------------------------------------

void ToonzScene::save(const TFilePath &fp, TXsheet *subxsh)
{
	TFilePath oldScenePath = getScenePath();
	TFilePath newScenePath = fp;

	CameraRedirection redir(this, subxsh);

	bool wasUntitled = isUntitled();

	setScenePath(fp);

	TFileStatus fs(newScenePath);
	if (fs.doesExist() && !fs.isWritable())
		throw TSystemException(newScenePath, "The scene cannot be saved: it is a read only scene.\n All resources have been saved.");

	TFilePath scenePath = decodeFilePath(fp);

	//if(TFileStatus(scenePath).doesExist()) saveBackup(scenePath);

	TSystem::touchFile(scenePath);
	makeSceneIcon(this);

	//TOStream os(scenePath, compressionEnabled);
	TOStream os(scenePath, false);
	if (!os.checkStatus())
		throw TException("Could not open file");

	TXsheet *xsh = subxsh;
	if (xsh == 0)
		xsh = m_childStack->getTopXsheet();

	std::map<std::string, std::string> attr;
	attr["version"] = (QString::number(l_currentVersion.first) + "." // From now on, version numbers in saved files will have
					   + QString::number(l_currentVersion.second))   // the signature "MAJOR.MINOR", where:
						  .toStdString();							 //
	attr["framecount"] = QString::number(							 //    MAJOR = Toonz version number * 10 (eg 7.0 => 70)
							 xsh->getFrameCount())
							 .toStdString(); //    MINOR = Reset to 0 after each major increment, and
											 //            advancing on its own when fixing bugs.
	os.openChild("tnz", attr);

	os.child("generator") << TEnv::getApplicationFullName();
	os.openChild("properties");
	m_properties->saveData(os);
	os.closeChild();

	if (subxsh) {
		std::set<TXshLevel *> saveSet;
		subxsh->getUsedLevels(saveSet);
		m_levelSet->setSaveSet(saveSet);
	}
	os.openChild("levelSet");
	m_levelSet->saveData(os);
	os.closeChild();
	std::set<TXshLevel *> emptySaveSet;
	m_levelSet->setSaveSet(emptySaveSet);

	os.openChild("xsheet");
	os << *xsh;
	os.closeChild();

	if (getContentHistory()) {
		os.openChild("history");
		QString data = getContentHistory()->serialize();
		int i = 0, j;
		// non scrivo tutta la std::string di seguito per evitare problemi se diventa
		// troppo lunga. Cerco di spezzarla in modo che sia "bella da leggere" nel tnz
		while ((j = data.indexOf("||", i)) >= i) {
			os << data.mid(i, j - i + 1).toStdWString();
			os.cr();
			i = j + 1;
		}
		os << data.mid(i).toStdWString();
		os.closeChild();
	}

	os.closeChild();
	bool status = os.checkStatus();
	if (!status)
		throw TException("Could not complete the save");

	if (subxsh) {
		setScenePath(oldScenePath);
		if (wasUntitled)
			setUntitled();
	} else {
		if (wasUntitled)
			deleteUntitledScene(oldScenePath.getParentDir());
	}
}

//-----------------------------------------------------------------------------

int ToonzScene::getFrameCount() const
{
	TXsheet *xsh = getXsheet();
	return xsh ? xsh->getFrameCount() : 0;
}

//-----------------------------------------------------------------------------

void ToonzScene::renderFrame(const TRaster32P &ras, int row, const TXsheet *xsh, bool checkFlags) const
{
	if (xsh == 0)
		xsh = getXsheet();

	TCamera *camera = xsh->getStageObjectTree()->getCurrentCamera();
	TDimension cameraRes = camera->getRes();
	TDimensionD cameraSize = camera->getSize();

	// voglio che la camera sia completamente contenuta dentro raster
	double sx = (double)ras->getLx() / (double)cameraSize.lx;
	double sy = (double)ras->getLy() / (double)cameraSize.ly;
	double sc = (sx < sy) ? sx : sy;

	const TAffine &cameraAff = xsh->getPlacement(xsh->getStageObjectTree()->getCurrentCameraId(), row);
	const TAffine &viewAff = TScale(sc / Stage::inch) * cameraAff.inv();

	TRect clipRect(ras->getBounds());
	TOfflineGL ogl(ras->getSize());
	currentOfflineGL = &ogl;

	ogl.makeCurrent();
	{
		glTranslated(0.5 * ras->getLx(), 0.5 * ras->getLy(), 0.0);

		glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
		glClear(GL_COLOR_BUFFER_BIT);

		ImagePainter::VisualSettings vs;
		vs.m_plasticVisualSettings.m_drawMeshesWireframe = false;

		Stage::RasterPainter painter(ras->getSize(), viewAff, clipRect, vs, checkFlags);
		Stage::visit(painter, const_cast<ToonzScene *>(this), const_cast<TXsheet *>(xsh), row);

		painter.flushRasterImages();
		glFlush();

		TRop::over(ras, ogl.getRaster());
	}
	ogl.doneCurrent();

	currentOfflineGL = 0;
}

//-----------------------------------------------------------------------------

//! Performs a camera-stand render of the specified xsheet in the specified placedRect,
//! with known world/placed reference change - and returns the result in a 32-bit raster.
void ToonzScene::renderFrame(const TRaster32P &ras, int row, const TXsheet *xsh,
							 const TRectD &placedRect, const TAffine &worldToPlacedAff) const
{
	// Build reference change affines
	const TAffine &placedToOglRefAff =
		TScale(ras->getLx() / placedRect.getLx(), ras->getLy() / placedRect.getLy()) *
		TTranslation(-0.5 * (placedRect.x0 + placedRect.x1), -0.5 * (placedRect.y0 + placedRect.y1));

	const TAffine &cameraAff = xsh->getPlacement(xsh->getStageObjectTree()->getCurrentCameraId(), row);

	const TAffine &worldToOglRefAff = placedToOglRefAff * worldToPlacedAff * cameraAff.inv();

	TRect clipRect(ras->getBounds());

	TOfflineGL ogl(ras->getSize());
	currentOfflineGL = &ogl;

	ogl.makeCurrent();
	{
		glTranslated(0.5 * ras->getLx(), 0.5 * ras->getLy(), 0.0);

		glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
		glClear(GL_COLOR_BUFFER_BIT);

		ImagePainter::VisualSettings vs;
		vs.m_plasticVisualSettings.m_drawMeshesWireframe = false;

		Stage::RasterPainter painter(ras->getSize(), worldToOglRefAff, clipRect, vs, false);
		Stage::visit(painter, const_cast<ToonzScene *>(this), const_cast<TXsheet *>(xsh), row);

		painter.flushRasterImages();
		glFlush();

		TRop::over(ras, ogl.getRaster());
	}
	ogl.doneCurrent();

	currentOfflineGL = 0;
}

//-----------------------------------------------------------------------------

TXshLevel *ToonzScene::createNewLevel(int type, std::wstring levelName, const TDimension &dim, double dpi, TFilePath fp)
{
	TLevelSet *levelSet = getLevelSet();

	if (type == TZI_XSHLEVEL) // TZI type corresponds to the 'Scan Level'
		type = OVL_XSHLEVEL;  // default option. See Toonz Preferences class.

	if (type == CHILD_XSHLEVEL && levelName == L"")
		levelName = L"sub";

	// Select a different unique level name in case it already exists (either in scene or on disk)
	{
		const std::auto_ptr<NameBuilder> nameBuilder(NameBuilder::getBuilder(levelName));

		for (;;) {
			levelName = nameBuilder->getNext();
			/*-- levelが既にロード済みなら、次の名前を取得 --*/
			if (m_levelSet->getLevel(levelName) != 0)
				continue;

			/*-- LevelSetの中に同じファイルパスのLevelがあるかをチェック --*/
			if (type != CHILD_XSHLEVEL && type != PLT_XSHLEVEL) {
				if (fp.isEmpty())
					fp = getDefaultLevelPath(type, levelName);
				TFilePath actualFp = decodeFilePath(fp);

				if (TSystem::doesExistFileOrLevel(actualFp)) // if(TFileStatus(actualFp).doesExist()) continue;
				{
					fp = TFilePath();
					continue;
				}

				int l, lCount = levelSet->getLevelCount();
				for (l = 0; l != lCount; ++l) {
					TXshLevel *xl = levelSet->getLevel(l);
					if (!xl)
						continue;

					TXshSimpleLevel *sl = xl->getSimpleLevel();
					if (!sl)
						continue;

					TFilePath lfp = decodeFilePath(sl->getPath());
					if (actualFp == lfp)
						break;
				}

				if (l < lCount) {
					/*-- fpが既存のLevelと重複したため、再設定する --*/
					fp = TFilePath();
					continue;
				}
			}
			break;
		}
	}

	TXshLevel *xl = 0;
	if (type == CHILD_XSHLEVEL) {
		TXshChildLevel *cl = new TXshChildLevel(levelName);
		cl->setScene(this);
		cl->getXsheet()->setScene(this);
		xl = cl;

		// Include the project's default cameras
		const TSceneProperties &props =
			TProjectManager::instance()->getCurrentProject()->getSceneProperties();

		props.cloneCamerasTo(cl->getXsheet()->getStageObjectTree());
	} else if (type == PLT_XSHLEVEL) {
		TXshPaletteLevel *pl = new TXshPaletteLevel(levelName);
		pl->setScene(this);
		xl = pl;
	} else {
		TXshSimpleLevel *sl = new TXshSimpleLevel(levelName);

		sl->setScene(this);
		sl->setType(type);
		sl->setPath(fp);
		sl->setDirtyFlag(true);

		if (type == TZP_XSHLEVEL || type == PLI_XSHLEVEL)
			sl->setPalette(new TPalette());

		if (type == OVL_XSHLEVEL)
			sl->setPalette(FullColorPalette::instance()->getPalette(this));

		TPalette *palette = sl->getPalette();
		if (palette && type != OVL_XSHLEVEL) {
			palette->setPaletteName(sl->getName());
			palette->setDirtyFlag(true);
		}

		if (type == TZP_XSHLEVEL || type == OVL_XSHLEVEL) {
			sl->getProperties()->setDpiPolicy(LevelProperties::DP_ImageDpi);
			if (dim == TDimension()) {
				Preferences *pref = Preferences::instance();
				double w = pref->getDefLevelWidth();
				double h = pref->getDefLevelHeight();
				dpi = pref->getDefLevelDpi();
				sl->getProperties()->setImageRes(TDimension(tround(w * dpi), tround(h * dpi)));
			} else
				sl->getProperties()->setImageRes(dim);

			sl->getProperties()->setImageDpi(TPointD(dpi, dpi));
			sl->getProperties()->setDpi(dpi);
		}

		xl = sl;
	}

	m_levelSet->insertLevel(xl);
	TNotifier::instance()->notify(TCastChange());

	return xl;
}

//-----------------------------------------------------------------------------

TXsheet *ToonzScene::getXsheet() const
{
	return m_childStack->getXsheet();
}

//-----------------------------------------------------------------------------

TXsheet *ToonzScene::getTopXsheet() const
{
	return m_childStack->getTopXsheet();
}

//-----------------------------------------------------------------------------

struct LevelType {
	int m_ltype;
	bool m_oldLevelFlag;
	bool m_vectorNotPli;
	std::string m_ext;
};

//-----------------------------------------------------------------------------

LevelType getLevelType(const TFilePath &fp)
{
	LevelType ret;
	ret.m_ltype = UNKNOWN_XSHLEVEL;
	ret.m_oldLevelFlag = false;
	ret.m_vectorNotPli = false;
	ret.m_ext = fp.getType();
	std::string format = ret.m_ext;

	TFileType::Type type = TFileType::getInfo(fp);

	switch (type) {
	case TFileType::RASTER_IMAGE:
	case TFileType::RASTER_LEVEL:
	case TFileType::CMAPPED_LEVEL:
		if (format == "tzp" || format == "tzu") {
			ret.m_ltype = TZP_XSHLEVEL;
			ret.m_oldLevelFlag = true;
			ret.m_ext = "tlv";
		} else if (format == "tzl" || format == "tlv")
			ret.m_ltype = TZP_XSHLEVEL;
		else if (format == "tzi")
			ret.m_ltype = TZI_XSHLEVEL;
		else
			ret.m_ltype = OVL_XSHLEVEL;
		break;

	case TFileType::VECTOR_LEVEL:
		if (format == "svg") {
			ret.m_vectorNotPli = true;
			ret.m_ext = "pli";
		}
		/*  if (format == "svg")
			ret.m_ext = "pli";*/
		ret.m_ltype = PLI_XSHLEVEL;
		break;

	case TFileType::AUDIO_LEVEL:
		ret.m_ltype = SND_XSHLEVEL;
		break;

	case TFileType::MESH_IMAGE:
	case TFileType::MESH_LEVEL:
		ret.m_ltype = MESH_XSHLEVEL;
		break;
	}

	return ret;
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::getImportedLevelPath(const TFilePath path) const
{
	if (TFileType::getInfo(path) == TFileType::AUDIO_LEVEL)
		return path.withParentDir(TFilePath("+extras"));
	else if (TFileType::getInfo(path) == TFileType::PALETTE_LEVEL)
		return path.withParentDir(TFilePath("+palettes"));

	const LevelType &ltype = getLevelType(path);
	if (ltype.m_ltype == UNKNOWN_XSHLEVEL)
		return path;

	const std::wstring &levelName = path.getWideName();
	const std::string &ext = path.getType(),
					  &dots = path.getDots();

	TFilePath importedLevelPath =
		getDefaultLevelPath(ltype.m_ltype, levelName).getParentDir() + (levelName + ::to_wstring(dots + ext));

	if (dots == "..")
		importedLevelPath = importedLevelPath.withFrame(TFrameId::EMPTY_FRAME);

	if (importedLevelPath.getType() == "tlv")				 // Type shouldn't have changed...
		importedLevelPath = importedLevelPath.withNoFrame(); // Plus, should be unnecessary...

	return importedLevelPath;
}

//-----------------------------------------------------------------------------

/* tzp,tzu->tlv */
bool ToonzScene::convertLevelIfNeeded(TFilePath &levelPath)
{
	LevelType ltype = getLevelType(levelPath);
	TFilePath fp = levelPath;
	if (ltype.m_vectorNotPli) {
		// livello flash o svg
		levelPath = levelPath.withType("pli");
		TLevelWriterP lw(levelPath);
		TLevelReaderP lr(fp);
		if (!lr)
			return false;
		TLevelP inLevel = lr->loadInfo();
		if (!inLevel || inLevel->getFrameCount() == 0)
			return false;
		TLevelP outLevel;
		for (TLevel::Iterator it = inLevel->begin();
			 it != inLevel->end(); ++it) {
			TVectorImageP img = lr->getFrameReader(it->first)->load();
			if (!img)
				continue;
			lw->getFrameWriter(it->first)->save(img);
		}
	} else if (ltype.m_oldLevelFlag) {
		TLevelP outLevel;
		// livello Toonz 4.6
		levelPath = TFilePath(levelPath.getParentDir().getWideString() + L"\\" + levelPath.getWideName() + L".tlv");
		if (TSystem::doesExistFileOrLevel(levelPath))
			TSystem::removeFileOrLevel(levelPath);
		TFilePath pltPath = TFilePath(levelPath.getParentDir().getWideString() + L"\\" + levelPath.getWideName() + L".tpl");
		if (TSystem::doesExistFileOrLevel(pltPath))
			TSystem::removeFileOrLevel(pltPath);

		TLevelWriterP lw(levelPath);
		lw->setIconSize(Preferences::instance()->getIconSize());
		TPaletteP palette = ToonzImageUtils::loadTzPalette(fp.withType("plt").withNoFrame());
		TLevelReaderP lr(fp);
		if (!lr)
			return false;
		TLevelP inLevel = lr->loadInfo();
		if (!inLevel || inLevel->getFrameCount() == 0)
			return false;
		outLevel->setPalette(palette.getPointer());
		try {
			for (TLevel::Iterator it = inLevel->begin(); it != inLevel->end(); ++it) {
				TToonzImageP img = lr->getFrameReader(it->first)->load();
				if (!img)
					continue;
				img->setPalette(palette.getPointer());
				lw->getFrameWriter(it->first)->save(img);
			}
		} catch (TException &e) {
			//devo buttare il tlv che stavo salvando!
			QString msg = QString::fromStdWString(e.getMessage());
			if (msg == QString("Old 4.1 Palette")) {
				lw = TLevelWriterP();
				if (TSystem::doesExistFileOrLevel(levelPath))
					TSystem::removeFileOrLevel(levelPath);
				throw e;
			}
		}
		lw = TLevelWriterP(); //bisogna liberare prima lw di outLevel,
							  // altrimenti la paletta che lw vuole scrivere e' gia' stata loutLeveliberata.
	}
	return true;
}

//-----------------------------------------------------------------------------

TXshLevel *ToonzScene::loadLevel(const TFilePath &actualPath,
								 const LevelOptions *levelOptions,
								 std::wstring levelName,
								 const std::vector<TFrameId> &fIds)
{
	LevelType ltype = getLevelType(actualPath);
	if (ltype.m_ltype == UNKNOWN_XSHLEVEL)
		return 0;

	TFilePath levelPath = actualPath;

	// Ensure the level name is unique

	if (QString::fromStdWString(levelName).isEmpty()) {
		// if the option is set in the preferences,
		// remove the scene numbers("c####_") from the file name
		levelName = getLevelNameWithoutSceneNumber(levelPath.getWideName());
	}

	NameModifier nm(levelName);
	levelName = nm.getNext();
	while (m_levelSet->hasLevel(levelName))
		levelName = nm.getNext();

	// Discriminate sound levels
	if (ltype.m_ltype == SND_XSHLEVEL) {
		TXshSoundLevel *sl = new TXshSoundLevel(levelName);
		sl->setType(ltype.m_ltype);
		sl->setScene(this);
		sl->setPath(codeFilePath(levelPath));

		try {
			sl->load();
		} catch (const std::string &msg) // Intercepting std::string exceptions
		{
			throw TException(msg);
		} // from load, and rethrowing... curious!

		m_levelSet->insertLevel(sl);
		return sl;
	} else {
		TXshSimpleLevel *xl = new TXshSimpleLevel(levelName);
		xl->setType(ltype.m_ltype);
		xl->setScene(this);

		if (!convertLevelIfNeeded(levelPath))
			return 0; // Conversion failed, bail out

		xl->setPath(codeFilePath(levelPath), true);

		try {
			if (fIds.size() != 0)
				xl->load(fIds);
			else
				xl->load();
		} catch (const std::string &msg) {
			throw TException(msg);
		}

		if (ltype.m_oldLevelFlag)
			xl->setDirtyFlag(true); // Not set on old level formats?

		LevelProperties *lp = xl->getProperties();
		assert(lp);

		if (levelOptions)
			lp->options() = *levelOptions;
		else {
			const Preferences &prefs = *Preferences::instance();
			int formatIdx = prefs.matchLevelFormat(levelPath); // Should I use actualPath here? It's mostly
															   // irrelevant anyway, it's for old tzp/tzu...
			if (formatIdx >= 0)
				lp->options() = prefs.levelFormat(formatIdx).m_options;
			else {
				// Default subsampling values are assigned from scene properties
				if (xl->getType() == OVL_XSHLEVEL)
					lp->setSubsampling(getProperties()->getFullcolorSubsampling());
				else if (xl->getType() == TZP_XSHLEVEL)
					lp->setSubsampling(getProperties()->getTlvSubsampling());
			}
		}

		if (lp->getDpiPolicy() == LevelProperties::DP_ImageDpi) {
			// We must check whether the image actually has a dpi.
			const TPointD &imageDpi = xl->getImageDpi();

			if (imageDpi == TPointD()) {
				// Change to "Custom Dpi" policy and use camera dpi
				TStageObjectId cameraId = getXsheet()->getStageObjectTree()->getCurrentCameraId();

				lp->setDpiPolicy(LevelProperties::DP_CustomDpi);
				lp->setDpi(getCurrentCamera()->getDpi());
			} else {
				// Has dpi alright - assign it to custom dpi, too
				lp->setDpi(imageDpi);
			}
		}

		m_levelSet->insertLevel(xl);

		return xl;
	}

	return 0;
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::decodeFilePath(const TFilePath &path) const
{
	TProject *project = getProject();
	bool projectIsEmpty = false;
	TFilePath fp = path;

	std::wstring head;
	TFilePath tail;
	path.split(head, tail);

	std::string h;
	std::wstring s;
	if (head != L"" && head[0] == L'+') {
		if (TProjectManager::instance()->isTabModeEnabled()) {
			return m_scenePath.getParentDir() +
				   (m_scenePath.getWideName() + L"_files") +
				   tail;
		}

		if (TProjectManager::instance()->isTabKidsModeEnabled()) {
			return m_scenePath.getParentDir() +
				   m_scenePath.getWideName() +
				   tail;
		}

		if (projectIsEmpty) {
			TFilePath dir = m_scenePath.getParentDir();
			if (dir.getName() == "scenes")
				return dir.withName(head.substr(1)) + tail;
			else
				return dir + tail;
		}
		if (project) {
			h = ::to_string(head.substr(1));
			TFilePath f = project->getFolder(h);
			if (f != TFilePath())
				s = f.getWideString();
		}
	}
	if (s != L"") {
		std::map<std::wstring, std::wstring> table;

		// se la scena e' untitled e l'espansione del path
		// dipende dalla scena (o perche' l'espansione contiene
		// $scenename, $scenepath o perche' si usa il savepath)
		if (m_isUntitled &&
			(s.find(L"$scene") != std::wstring::npos ||
			 project->getUseScenePath(h) ||
			 fp.getParentDir().getName() == getScenePath().getName())) {
			TFilePath parentDir = getScenePath().getParentDir();
			fp = parentDir + head.substr(1) + tail;
		} else {
			TFilePath scenePath = getScenePath();
			TFilePath scenePathRoot;
			if (project)
				scenePathRoot = project->getFolder(TProject::Scenes);
			else
				scenePathRoot = scenePath.getParentDir();

			if (scenePathRoot != TFilePath() && !scenePathRoot.isAbsolute() && project)
				scenePathRoot = project->getProjectFolder() + scenePathRoot;

			if (TSystem::isUNC(scenePath) && !TSystem::isUNC(scenePathRoot))
				scenePathRoot = TSystem::toUNC(scenePathRoot);

			if (scenePathRoot.isAncestorOf(scenePath))
				scenePath = scenePath - scenePathRoot;

			table[L"$scenepath"] = scenePath.withType("").getWideString();
			table[L"$scenename"] = scenePath.withType("").getWideString();

			std::map<std::wstring, std::wstring>::reverse_iterator it;
			for (it = table.rbegin(); it != table.rend(); ++it) {
				std::wstring keyword = it->first;
				int i = 0;
				for (;;) {
					int j = s.find(keyword, i);
					if (j == (int)std::wstring::npos)
						break;
					s.replace(j, keyword.length(), it->second);
					i = j;
				}
			}
			fp = TFilePath(s) + tail;
		}
	}

	if (fp != TFilePath() && !fp.isAbsolute() && project)
		fp = project->getProjectFolder() + fp;
	return fp;
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::codeFilePath(const TFilePath &path) const
{
	TFilePath fp(path);
	TProject *project = getProject();

	if (project)
		for (int i = 0; i < project->getFolderCount(); i++) {
			TFilePath folderName("+" + project->getFolderName(i));
			TFilePath folderPath = decodeFilePath(folderName);
			if (folderPath.isAncestorOf(fp)) {
				fp = folderName + (fp - folderPath);
				return fp;
			}
		}
	return fp;
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::getDefaultLevelPath(int levelType, std::wstring levelName) const
{
	TProject *project = getProject();
	assert(project);
	TFilePath levelPath;
	QString scanLevelType;
	switch (levelType) {
	case TZI_XSHLEVEL:
		scanLevelType = Preferences::instance()->getScanLevelType();
		levelPath = TFilePath(levelName + L".." + scanLevelType.toStdWString());
		break;
	case PLI_XSHLEVEL:
		levelPath = TFilePath(levelName).withType("pli");
		break;
	case TZP_XSHLEVEL:
		levelPath = TFilePath(levelName).withType("tlv");
		break;
	case OVL_XSHLEVEL:
		levelPath = TFilePath(levelName + L"..tif");
		break;
	default:
		levelPath = TFilePath(levelName + L"..png");
	}
	std::string folderName = getFolderName(levelType);
	if (project->getUseScenePath(folderName))
		return TFilePath("+" + folderName) + getSavePath() + levelPath;
	else
		return TFilePath("+" + folderName) + levelPath;
}

//-----------------------------------------------------------------------------

const std::wstring savePathString(L"$savepath");

//-----------------------------------------------------------------------------

TFilePath ToonzScene::codeSavePath(TFilePath path) const
{
	if (path == TFilePath())
		return path;
	TFilePath savePath = getSavePath();
	if (savePath == TFilePath())
		return path; // non dovrebbe succedere mai
	TFilePath filename;
	TFilePath originalPath = path;
	if (savePath.withoutParentDir() != path.withoutParentDir()) {
		TFilePath parentDir = path.getParentDir();
		if (parentDir != TFilePath() && !parentDir.isRoot()) {
			filename = path.withoutParentDir();
			path = parentDir;
		} else
			return originalPath;
	}

	TFilePath head;
	if (!checkTail(path, savePath, head))
		return originalPath;
	if (head.getParentDir() != TFilePath() ||
		head == TFilePath() ||
		head.getWideString()[0] != L'+')
		return originalPath;
	std::string folderName = ::to_string(head.getWideString().substr(1));
	if (!getProject()->getUseScenePath(folderName))
		return originalPath;
	return head + savePathString + filename;
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::decodeSavePath(TFilePath path) const
{
	std::wstring s = path.getWideString();
	int i = s.find(savePathString);
	if (i != (int)std::wstring::npos) {
		TFilePath savePath = getSavePath();
		s.replace(i, savePathString.length(), savePath.getWideString());
		return TFilePath(s);
	} else
		return path;
}

//-----------------------------------------------------------------------------

bool ToonzScene::isExternPath(const TFilePath &fp) const
{
	TProject *project = m_project;
	assert(project);
	for (int i = 0; i < project->getFolderCount(); i++) {
		if (project->getFolderName(i) == "scenes")
			continue;

		TFilePath folderPath = decodeFilePath(TFilePath("+" + project->getFolderName(i)));
		if (folderPath.isAncestorOf(fp))
			return false;
	}
	return true;
}

//-----------------------------------------------------------------------------

TCamera *ToonzScene::getCurrentCamera()
{
	return getXsheet()->getStageObjectTree()->getCurrentCamera();
}

//-----------------------------------------------------------------------------

TCamera *ToonzScene::getCurrentPreviewCamera()
{
	return getXsheet()->getStageObjectTree()->getCurrentPreviewCamera();
}

//-----------------------------------------------------------------------------

TContentHistory *ToonzScene::getContentHistory(bool createIfNeeded)
{
	if (!m_contentHistory && createIfNeeded)
		m_contentHistory = new TContentHistory(false);
	return m_contentHistory;
}

//-----------------------------------------------------------------------------

void ToonzScene::getSoundColumns(std::vector<TXshSoundColumn *> &columns)
{
	ToonzScene *scene = this;
	std::set<TXsheet *> visited, toVisit;
	TXsheet *xsh = scene->getChildStack()->getTopXsheet();
	visited.insert(xsh);
	toVisit.insert(xsh);
	while (!toVisit.empty()) {
		xsh = *toVisit.begin();
		toVisit.erase(xsh);
		for (int i = 0; i < xsh->getColumnCount(); i++) {
			TXshColumn *column = xsh->getColumn(i);
			if (!column)
				continue;
			if (TXshSoundColumn *sc = column->getSoundColumn())
				columns.push_back(sc);
			else if (TXshCellColumn *cc = column->getCellColumn()) {
				int r0 = 0, r1 = -1;
				cc->getRange(r0, r1);
				if (!cc->isEmpty() && r0 <= r1) {
					for (int r = r0; r <= r1; r++) {
						TXshCell cell = cc->getCell(r);
						if (cell.m_level && cell.m_level->getChildLevel()) {
							TXsheet *subxsh = cell.m_level->getChildLevel()->getXsheet();
							if (visited.find(subxsh) == visited.end()) {
								visited.insert(subxsh);
								toVisit.insert(subxsh);
							}
						}
					}
				}
			}
		}
	}
}

//-----------------------------------------------------------------------------

void ToonzScene::updateSoundColumnFrameRate()
{
	std::vector<TXshSoundColumn *> soundColumns;
	getSoundColumns(soundColumns);

	TSceneProperties *properties = getProperties();
	if (!properties)
		return;

	TOutputProperties *outputProperties = properties->getOutputProperties();
	if (!outputProperties)
		return;

	double frameRate = outputProperties->getFrameRate();

	int i;
	for (i = 0; i < (int)soundColumns.size(); i++)
		soundColumns[i]->updateFrameRate(frameRate);
}

//-----------------------------------------------------------------------------

TFilePath ToonzScene::getIconPath(const TFilePath &scenePath)
{
	return scenePath.getParentDir() + "sceneIcons" + (scenePath.getWideName() + L" .png");
}

//-----------------------------------------------------------------------------

// se la scena sta in +scenes/pippo.tnz => pippo
// se la scena sta in +scenes/pluto/pippo.tnz => pluto/pippo
// se la scena e' untitledxxx.tnz => untitledxxx

TFilePath ToonzScene::getSavePath() const
{
	std::string sceneName = getScenePath().getName();
	if (isUntitled())
		return TFilePath(sceneName);
	TFilePath sceneRoot = decodeFilePath(TFilePath("+" + TProject::Scenes));
	TFilePath scenePath = getScenePath().withType("");
	TFilePath savePath(sceneName);
	if (sceneRoot.isAncestorOf(scenePath))
		savePath = scenePath - sceneRoot;
	return savePath;
}

//---------------------------------------------------------------------------

double ToonzScene::shiftCameraX(double val)
{
	TStageObjectTree *tree = getXsheet()->getStageObjectTree();

	TStageObject *stageObject = tree->getStageObject(tree->getCurrentCameraId());
	TPointD ret = stageObject->getOffset();
	stageObject->setOffset(TPointD(ret.x + val, ret.y));
	return ret.x;
}

//----------------------------------------------------------------------------
// if the option is set in the preferences,
// remove the scene numbers("c####_") from the file name

std::wstring ToonzScene::getLevelNameWithoutSceneNumber(std::wstring orgName)
{
	if (!Preferences::instance()->isRemoveSceneNumberFromLoadedLevelNameEnabled())
		return orgName;

	QString orgNameQstr = QString::fromStdWString(orgName);

	//do nothing if the file name has less than 7 letters
	if (orgNameQstr.size() <= 6)
		return orgName;

	QString sceneName = QString::fromStdWString(getSceneName()).left(5);

	//check if the first 5 letters of the level name is the same as the scene name.
	//note that we must consider following both cases; "c0001_hogehoge.tif" and "c0001A_####.tif"
	if (!orgNameQstr.startsWith(sceneName))
		return orgName;

	if (!orgNameQstr.contains("_"))
		return orgName;

	return orgNameQstr.right(orgNameQstr.size() - orgNameQstr.indexOf("_") - 1).toStdWString();
}