#include "tools/tool.h"

// TnzTools includes

#include "tools/toolcommandids.h"

#include "tools/toolhandle.h"

#include "tools/cursors.h"

#include "tools/tooloptions.h"

// TnzQt includes

#include "toonzqt/icongenerator.h"

// TnzLib includes

#include "toonzqt/menubarcommand.h"

#include "toonz/txshsimplelevel.h"

#include "toonz/txshleveltypes.h"

#include "toonz/levelproperties.h"

#include "toonz/toonzscene.h"

#include "toonz/sceneproperties.h"

#include "toonz/preferences.h"

#include "toonz/tscenehandle.h"

#include "toonz/txsheethandle.h"

#include "toonz/tframehandle.h"

#include "toonz/tcolumnhandle.h"

#include "toonz/tobjecthandle.h"

#include "toonz/tpalettehandle.h"

#include "toonz/txshlevelhandle.h"

#include "toonz/txshcell.h"

#include "toonz/tstageobject.h"

#include "toonz/tstageobjectspline.h"

#include "toonz/tstageobjecttree.h"

#include "toonz/dpiscale.h"

#include "toonz/palettecontroller.h"

// TnzCore includes

#include "tvectorimage.h"

#include "timagecache.h"

#include "tstroke.h"

#include "tcolorstyles.h"

#include "ttoonzimage.h"

#include "trasterimage.h"

//*****************************************************************************************

//    Local namespace

//*****************************************************************************************

namespace {

// Global variables

typedef std::pair<std::string, ttool::tooltargettype=""> ToolKey;</std::string,>

typedef std::map<toolkey, *="" ttool=""> ToolTable;</toolkey,>

ToolTable *toolTable = 0;

std::set<std::string> *toolNames = 0;</std::string>

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

// Local classes

struct DummyTool final : public TTool {

  ToolType getToolType() const override {

    return TTool::LevelReadTool;

  }  // Test level type

  ToolTargetType getTargetType() const {

    return TTool::NoTarget;

  }  // Works on nothing

  int getCursorId() const override {

    return ToolCursor::ForbiddenCursor;

  }  // Forbids everything

  DummyTool() : TTool("T_Dummy") {}

} theDummyTool;

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

class ToolSelector {

  std::string m_toolName;

public:

  ToolSelector(std::string toolName) : m_toolName(toolName) {}

  void selectTool() {

    TTool::Application *app = TTool::getApplication();

    if (app) app->getCurrentTool()->setTool(QString::fromStdString(m_toolName));

  }

};

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

// Local functions

TFrameId getNewFrameId(TXshSimpleLevel *sl, int row) {

  TFrameId fid(row + 1);

  if (sl->isFid(fid)) {

    fid = TFrameId(fid.getNumber(), 'a');

    while (fid.getLetter() < 'z' && sl->isFid(fid))

      fid = TFrameId(fid.getNumber(), fid.getLetter() + 1);

  }

  return fid;

}

}  // namespace

//*****************************************************************************************

//    TTool  static members

//*****************************************************************************************

TTool::Application *TTool::m_application   = 0;

std::set<tframeid> TTool::m_selectedFrames = std::set<tframeid>();</tframeid></tframeid>

bool TTool::m_isLevelCreated               = false;

bool TTool::m_isFrameCreated               = false;

// m_cellsData

// brutto brutto. fix quick & dirty del baco #6213 (undo con animation sheet)

// bisogna ripensare la logica degli undo e del touchImage

// m_cellsData viene inizializzato nel touchImage() in modalita' animation sheet

// contiene una o due terne che rappresentano range di celle (dell'xsheet)

// modificate dall'inserimento

// di un nuovo frame: [r0,r1,type].

// type = 0 : vecchio (cella[r0-1]) => nuovo

// type = 1 : vuoto => vecchio (cella[r0-1])

// type = 2 : vuoto => nuovo

// cfr. il codice di TTool::touchImage()

// ToolUtils::TToolUndo::removeLevelAndFrameIfNeeded()

std::vector<int> TTool::m_cellsData;</int>

//*****************************************************************************************

//    TTool  implementation

//*****************************************************************************************

TTool::TTool(std::string name)

    : m_name(name)

    , m_viewer(0)

    , m_targetType(NoTarget)

    , m_enabled(true)

    , m_active(false)

    , m_picking(false) {}

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

TTool *TTool::getTool(std::string toolName, ToolTargetType targetType) {

  if (!toolTable) return 0;

  ToolTable::iterator it =

      toolTable->find(std::make_pair(toolName, targetType));

  if (it == toolTable->end()) return 0;

  return it->second;

}

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

void TTool::bind(int targetType) {

  m_targetType = targetType;

  if (!toolTable) toolTable = new ToolTable();

  if (!toolNames) toolNames = new std::set<std::string>();</std::string>

  std::string name = getName();

  if (toolNames->count(name) == 0) {

    toolNames->insert(name);

    // Initialize with the dummy tool

    toolTable->insert(

        std::make_pair(std::make_pair(name, ToonzImage), &theDummyTool));

    toolTable->insert(

        std::make_pair(std::make_pair(name, VectorImage), &theDummyTool));

    toolTable->insert(

        std::make_pair(std::make_pair(name, RasterImage), &theDummyTool));

    toolTable->insert(

        std::make_pair(std::make_pair(name, MeshImage), &theDummyTool));

    ToolSelector *toolSelector = new ToolSelector(name);

    CommandManager::instance()->setHandler(

        name.c_str(), new CommandHandlerHelper<toolselector>(</toolselector>

                          toolSelector, &ToolSelector::selectTool));

  }

  if (targetType & ToonzImage)

    (*toolTable)[std::make_pair(name, ToonzImage)] = this;

  if (targetType & VectorImage)

    (*toolTable)[std::make_pair(name, VectorImage)] = this;

  if (targetType & RasterImage)

    (*toolTable)[std::make_pair(name, RasterImage)] = this;

  if (targetType & MeshImage)

    (*toolTable)[std::make_pair(name, MeshImage)] = this;

}

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

ToolOptionsBox *TTool::createOptionsBox() {

  TPaletteHandle *currPalette =

      m_application->getPaletteController()->getCurrentLevelPalette();

  ToolHandle *currTool = m_application->getCurrentTool();

  return new GenericToolOptionsBox(0, this, currPalette, 0, currTool);

}

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

double TTool::getPixelSize() const {

  return m_viewer ? m_viewer->getPixelSize() : 1.0;

}

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

TXshCell TTool::getImageCell() {

  assert(m_application);

  TXshCell result;

  TFrameHandle *currentFrame    = m_application->getCurrentFrame();

  TXshLevelHandle *currentLevel = m_application->getCurrentLevel();

  if (currentFrame->isEditingLevel()) {

    if (TXshLevel *xl = currentLevel->getLevel()) {

      if (TXshSimpleLevel *sl = xl->getSimpleLevel()) {

        result.m_level   = xl;

        result.m_frameId = currentFrame->getFid();

      }

    }

  } else {

    if (TXsheet *xsh = m_application->getCurrentXsheet()->getXsheet()) {

      if (!m_application->getCurrentObject()->isSpline()) {

        int row = currentFrame->getFrame();

        int col = m_application->getCurrentColumn()->getColumnIndex();

        result = xsh->getCell(row, col);

      }

    }

  }

  return result;

}

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

TImage *TTool::getImage(bool toBeModified, int subsampling) {

  assert(m_application);

  if (m_application->getCurrentFrame()->isPlaying())

    toBeModified =

        false;  // In playback mode, you are not going to modify images

                // Probably useless - tools are disabled when playing...

  const TXshCell &cell = getImageCell();

  if (cell.isEmpty()) {

    TObjectHandle *currentObject = m_application->getCurrentObject();

    return currentObject->isSpline() ? currentObject->getSplineImage()

                                     : (TImage *)0;

  } else

    return cell.getImage(toBeModified, subsampling).getPointer();

}

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

TImage *TTool::touchImage() {

  if (!m_application) return 0;

  m_cellsData.clear();

  m_isLevelCreated  = false;

  m_isFrameCreated  = false;

  Preferences *pref = Preferences::instance();

  bool isAutoCreateEnabled   = pref->isAutoCreateEnabled();

  bool animationSheetEnabled = pref->isAnimationSheetEnabled();

  bool isAutoStretchEnabled  = pref->isAutoStretchEnabled();

  TFrameHandle *currentFrame    = m_application->getCurrentFrame();

  TXshLevelHandle *currentLevel = m_application->getCurrentLevel();

  if (currentFrame->isEditingLevel()) {

    // Editing level

    // no level => return 0

    TXshLevel *xl = currentLevel->getLevel();

    if (!xl) return 0;

    TXshSimpleLevel *sl = xl->getSimpleLevel();

    if (!sl || sl->isEmpty()) return 0;

    TFrameId fid = currentFrame->getFid();

    TImageP img  = sl->getFrame(fid, true);

    if (!img) {

      // no drawing found

      if (sl->isSubsequence() || sl->isReadOnly() || !isAutoCreateEnabled)

        return 0;

      // create a new drawing

      img = sl->createEmptyFrame();

      sl->setFrame(fid, img);

      currentLevel->notifyLevelChange();

      m_isFrameCreated = true;

    }

    return img.getPointer();

  } else {

    // editing xsheet

    if (m_application->getCurrentObject()->isSpline()) return 0;

    TSceneHandle *currentScene = m_application->getCurrentScene();

    ToonzScene *scene          = currentScene->getScene();

    int row                    = currentFrame->getFrame();

    int col = m_application->getCurrentColumn()->getColumnIndex();

    if (col < 0) return 0;

    TXsheetHandle *currentXsheet = m_application->getCurrentXsheet();

    TXsheet *xsh                 = currentXsheet->getXsheet();

    if (!xsh) return 0;

    TXshCell cell       = xsh->getCell(row, col);

    TXshSimpleLevel *sl = cell.getSimpleLevel();

    if (sl != 0) {

      // current cell is not empty

      if (isAutoCreateEnabled && animationSheetEnabled && row > 0 &&

          xsh->getCell(row - 1, col) == xsh->getCell(row, col)) {

        // animationSheet is enabled and the current cell is a "hold". We must

        // create a new drawing.

        // measure the hold length (starting from the current row) : r0-r1

        int r0 = row, r1 = row;

        if (isAutoStretchEnabled)

          while (xsh->getCell(r1 + 1, col) == cell) r1++;

        // find the proper frameid (possibly addisng suffix, in order to avoid a

        // fid already used)

        TFrameId fid = getNewFrameId(sl, row);

        // create the new drawing

        TImageP img      = sl->createEmptyFrame();

        m_isFrameCreated = true;

        // insert the drawing in the level

        sl->setFrame(fid, img);

        // update the cell

        cell = TXshCell(sl, fid);

        // update the xsheet (change the current cell and possibly all the

        // following "hold")

        for (int r = r0; r <= r1; r++) xsh->setCell(r, col, cell);

        // notify

        currentXsheet->notifyXsheetChanged();

        currentScene->notifyCastChange();

        currentLevel->notifyLevelChange();

        m_cellsData.push_back(r0);

        m_cellsData.push_back(r1);

        m_cellsData.push_back(0);

      }

      // we've found the image. return it.

      return cell.getImage(true).getPointer();

    }

    // current cell is empty.

    if (!isAutoCreateEnabled) return 0;

    // get the column range

    int r0, r1;

    xsh->getCellRange(col, r0, r1);

    if (animationSheetEnabled && r0 <= r1) {

      // animation sheet enabled and not empty column. We must create a new

      // drawing in the column level and possibly add "holds"

      // find the last not-empty cell before the current one (a) and the first

      // after (b)

      int a = row - 1, b = row + 1;

      while (a >= r0 && xsh->getCell(a, col).isEmpty()) a--;

      while (b <= r1 && xsh->getCell(b, col).isEmpty()) b++;

      // find the level we must attach to

      if (a >= r0) {

        // there is a not-emtpy cell before the current one

        sl = xsh->getCell(a, col).getSimpleLevel();

      } else if (b <= r1) {

        sl = xsh->getCell(b, col).getSimpleLevel();

      }

      if (sl) {

        // note: sl should be always !=0 (the column is not empty)

        // if - for some reason - it is ==0 then we skip to the standard (i.e.

        // !animationSheetEnabled) beahviour

        // create the drawing

        // find the proper frameid (possibly addisng suffix, in order to avoid a

        // fid already used)

        TFrameId fid = getNewFrameId(sl, row);

        // create the new drawing

        TImageP img      = sl->createEmptyFrame();

        m_isFrameCreated = true;

        // insert the drawing in the level

        sl->setFrame(fid, img);

        // update the cell

        cell = TXshCell(sl, fid);

        xsh->setCell(row, col, cell);

        // create holds

        if (!isAutoStretchEnabled) {

          m_cellsData.push_back(row);

          m_cellsData.push_back(row);

          m_cellsData.push_back(2);  // vuoto => nuovo

        } else {

          if (a >= r0) {

            // create a hold before : [a+1, row-1]

            TXshCell aCell = xsh->getCell(a, col);

            for (int i = a + 1; i < row; i++) xsh->setCell(i, col, aCell);

            m_cellsData.push_back(a + 1);

            m_cellsData.push_back(row - 1);

            m_cellsData.push_back(1);  // vuoto => vecchio

            if (b <= r1 && xsh->getCell(b, col).getSimpleLevel() == sl) {

              // create also a hold after

              for (int i = row + 1; i < b; i++) xsh->setCell(i, col, cell);

              m_cellsData.push_back(row);

              m_cellsData.push_back(b - 1);

              m_cellsData.push_back(2);  // vuoto => nuovo

            } else {

              m_cellsData.push_back(row);

              m_cellsData.push_back(row);

              m_cellsData.push_back(2);  // vuoto => nuovo

            }

          } else if (b <= r1) {

            // create a hold after

            for (int i = row + 1; i < b; i++) xsh->setCell(i, col, cell);

            m_cellsData.push_back(row);

            m_cellsData.push_back(b - 1);

            m_cellsData.push_back(2);  // vuoto => nuovo

          }

        }

      }

      // notify & return

      currentXsheet->notifyXsheetChanged();

      currentScene->notifyCastChange();

      currentLevel->notifyLevelChange();

      return cell.getImage(true).getPointer();

    }

    if (row > 0 && xsh->getCell(row - 1, col).getSimpleLevel() != 0 &&

        !animationSheetEnabled) {

      sl = xsh->getCell(row - 1, col).getSimpleLevel();

      if (sl->getType() != OVL_XSHLEVEL ||

          sl->getPath().getFrame() != TFrameId::NO_FRAME) {

        // la cella precedente contiene un drawing di un livello. animationSheet

        // e' disabilitato

        // creo un nuovo frame

        currentLevel->setLevel(sl);

        if (sl->isSubsequence() || sl->isReadOnly()) return 0;

        TFrameId fid     = sl->index2fid(sl->getFrameCount());

        TImageP img      = sl->createEmptyFrame();

        m_isFrameCreated = true;

        sl->setFrame(fid, img);

        cell = TXshCell(sl, fid);

        xsh->setCell(row, col, cell);

        currentXsheet->notifyXsheetChanged();

        currentScene->notifyCastChange();

        currentLevel->notifyLevelChange();

        return img.getPointer();

      }

    }

    // animation sheet disabled or empty column. autoCreate is enabled: we must

    // create a new level

    int levelType    = pref->getDefLevelType();

    TXshLevel *xl    = scene->createNewLevel(levelType);

    sl               = xl->getSimpleLevel();

    m_isLevelCreated = true;

    // create the drawing

    TFrameId fid = animationSheetEnabled ? getNewFrameId(sl, row) : TFrameId(1);

    TImageP img  = sl->createEmptyFrame();

    m_isFrameCreated = true;

    sl->setFrame(fid, img);

    cell = TXshCell(sl, fid);

    xsh->setCell(row, col, cell);

    if (animationSheetEnabled) {

      m_cellsData.push_back(row);

      m_cellsData.push_back(row);

      m_cellsData.push_back(2);  // vuoto => nuovo

    }

    currentXsheet->notifyXsheetChanged();

    currentScene->notifyCastChange();

    currentLevel->notifyLevelChange();

    return img.getPointer();

  }

}

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

void TTool::updateToolsPropertiesTranslation() {

  ToolTable::iterator tt, tEnd(toolTable->end());

  for (tt = toolTable->begin(); tt != tEnd; ++tt)

    tt->second->updateTranslation();

}

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

void TTool::invalidate(const TRectD &rect) {

  if (m_viewer) {

    if (rect.isEmpty())

      m_viewer->GLInvalidateAll();

    else {

      TPointD dpiScale(1, 1);

      TXshSimpleLevel *sl =

          getApplication()->getCurrentLevel()->getSimpleLevel();

      if (sl) dpiScale = getCurrentDpiScale(sl, getCurrentFid());

      m_viewer->GLInvalidateRect(getCurrentColumnMatrix() *

                                 TScale(dpiScale.x, dpiScale.y) * rect);

    }

  }

}

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

int TTool::pick(const TPointD &p) {

  if (!m_viewer) return 0;

  m_picking = true;

  int ret   = m_viewer->pick(p);

  m_picking = false;

  return ret;

}

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

TXsheet *TTool::getXsheet() const {

  if (!m_application) return 0;

  return m_application->getCurrentXsheet()->getXsheet();

}

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

int TTool::getFrame() {

  if (!m_application) return 0;

  return m_application->getCurrentFrame()->getFrame();

}

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

int TTool::getColumnIndex() {

  if (!m_application) return 0;

  return m_application->getCurrentColumn()->getColumnIndex();

}

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

TStageObjectId TTool::getObjectId() {

  if (!m_application) return TStageObjectId();

  return m_application->getCurrentObject()->getObjectId();

}

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

TTool::Application *TTool::getApplication() {

  if (m_application == 0)

    assert(!"you MUST call the TTool::setApplication function in the main of the program!");

  return m_application;

}

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

/*! Notify change of current image: update icon and notify level change.

    If current object is a spline commit spline chenged.

    If current mode is EditingLevel touch current frame.

*/

void TTool::notifyImageChanged() {

  onImageChanged();

  if (!m_application) return;

  m_application->getCurrentScene()->setDirtyFlag(true);

  if (m_application->getCurrentFrame()->isEditingLevel()) {

    TXshLevel *xl = m_application->getCurrentLevel()->getLevel();

    if (!xl) return;

    TXshSimpleLevel *sl = xl->getSimpleLevel();

    if (!sl) return;

    TFrameId fid = m_application->getCurrentFrame()->getFid();

    sl->touchFrame(fid);

    // sl->setDirtyFlag(true);

    IconGenerator::instance()->invalidate(sl, fid);

    IconGenerator::instance()->invalidateSceneIcon();

  } else {

    TXsheet *xsh = m_application->getCurrentXsheet()->getXsheet();

    if (!xsh) return;

    TObjectHandle *currentObject = m_application->getCurrentObject();

    if (currentObject->isSpline()) {

      m_application->getCurrentObject()->commitSplineChanges();

      TStageObject *pegbar = xsh->getStageObject(currentObject->getObjectId());

      IconGenerator::instance()->invalidate(pegbar->getSpline());

    } else {

      int row = m_application->getCurrentFrame()->getFrame();

      int col = m_application->getCurrentColumn()->getColumnIndex();

      if (col < 0) return;

      TXshCell cell       = xsh->getCell(row, col);

      TXshSimpleLevel *sl = cell.getSimpleLevel();

      if (sl) {

        IconGenerator::instance()->invalidate(sl, cell.m_frameId);

        sl->touchFrame(cell.m_frameId);

        IconGenerator::instance()->invalidateSceneIcon();

      }

    }

  }

  m_application->getCurrentLevel()->notifyLevelChange();

}

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

/*! Notify change of image in \b fid: update icon and notify level change.

 */

void TTool::notifyImageChanged(const TFrameId &fid) {

  onImageChanged();

  if (!m_application) return;

  m_application->getCurrentScene()->setDirtyFlag(true);

  if (m_application->getCurrentFrame()->isEditingLevel()) {

    TXshLevel *xl = m_application->getCurrentLevel()->getLevel();

    if (!xl) return;

    TXshSimpleLevel *sl = xl->getSimpleLevel();

    if (!sl) return;

    sl->setDirtyFlag(true);

    IconGenerator::instance()->invalidate(sl, fid);

    IconGenerator::instance()->invalidateSceneIcon();

  } else {

    int row = m_application->getCurrentFrame()->getFrame();

    int col = m_application->getCurrentColumn()->getColumnIndex();

    if (col < 0) return;

    TXsheet *xsh = m_application->getCurrentXsheet()->getXsheet();

    if (!xsh) return;

    TXshCell cell       = xsh->getCell(row, col);

    TXshSimpleLevel *sl = cell.getSimpleLevel();

    if (sl) {

      IconGenerator::instance()->invalidate(sl, fid);

      IconGenerator::instance()->invalidateSceneIcon();

      sl->setDirtyFlag(true);

    }

  }

  m_application->getCurrentLevel()->notifyLevelChange();

}

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

TFrameId TTool::getCurrentFid() const {

  if (!m_application) return TFrameId();

  TFrameHandle *fh = m_application->getCurrentFrame();

  if (fh->isEditingLevel()) return fh->getFid();

  int row = m_application->getCurrentFrame()->getFrame();

  int col = m_application->getCurrentColumn()->getColumnIndex();

  TXshCell cell =

      m_application->getCurrentXsheet()->getXsheet()->getCell(row, col);

  if (cell.isEmpty()) return TFrameId::NO_FRAME;

  return cell.getFrameId();

}

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

TAffine TTool::getCurrentColumnMatrix() const {

  return getColumnMatrix(m_application->getCurrentColumn()->getColumnIndex());

}

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

TAffine TTool::getCurrentColumnParentMatrix() const {

  if (!m_application) return TAffine();

  TFrameHandle *fh = m_application->getCurrentFrame();

  if (fh->isEditingLevel()) return TAffine();

  int frame       = fh->getFrame();

  int columnIndex = m_application->getCurrentColumn()->getColumnIndex();

  TXsheet *xsh    = m_application->getCurrentXsheet()->getXsheet();

  TStageObjectId parentId =

      xsh->getStageObjectParent(TStageObjectId::ColumnId(columnIndex));

  return xsh->getPlacement(parentId, frame);

}

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

TAffine TTool::getCurrentObjectParentMatrix() const {

  if (!m_application) return TAffine();

  TXsheet *xsh = m_application->getCurrentXsheet()->getXsheet();

  int frame    = m_application->getCurrentFrame()->getFrame();

  TStageObjectId currentObjectId =

      m_application->getCurrentObject()->getObjectId();

  if (currentObjectId == TStageObjectId::NoneId) return TAffine();

  TStageObjectId parentId = xsh->getStageObjectParent(currentObjectId);

  if (parentId == TStageObjectId::NoneId)

    return TAffine();

  else

    return xsh->getPlacement(parentId, frame);

}

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

TAffine TTool::getColumnMatrix(int columnIndex) const {

  if (!m_application) return TAffine();

  TFrameHandle *fh = m_application->getCurrentFrame();

  if (fh->isEditingLevel()) return TAffine();

  int frame               = fh->getFrame();

  TXsheet *xsh            = m_application->getCurrentXsheet()->getXsheet();

  TStageObjectId columnId = TStageObjectId::ColumnId(columnIndex);

  TAffine columnPlacement = xsh->getPlacement(columnId, frame);

  double columnZ          = xsh->getZ(columnId, frame);

  TStageObjectId cameraId = xsh->getStageObjectTree()->getCurrentCameraId();

  TStageObject *camera    = xsh->getStageObject(cameraId);

  TAffine cameraPlacement = camera->getPlacement(frame);

  double cameraZ          = camera->getZ(frame);

  TStageObject *object = xsh->getStageObject(columnId);

  TAffine placement;

  TStageObject::perspective(placement, cameraPlacement, cameraZ,

                            columnPlacement, columnZ,

                            object->getGlobalNoScaleZ());

  return placement;

}

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

TAffine TTool::getCurrentObjectParentMatrix2() const {

  TTool::Application *app = m_application;

  TFrameHandle *fh        = app->getCurrentFrame();

  if (fh->isEditingLevel()) return TAffine();

  int frame               = fh->getFrame();

  TXsheet *xsh            = app->getCurrentXsheet()->getXsheet();

  TStageObjectId id       = app->getCurrentObject()->getObjectId();

  double objZ             = xsh->getZ(id, frame);

  TStageObjectId parentId = xsh->getStageObjectParent(id);

  if (parentId == TStageObjectId::NoneId) return TAffine();

  id                   = parentId;

  TAffine objPlacement = xsh->getPlacement(id, frame);

  TStageObjectId cameraId = xsh->getStageObjectTree()->getCurrentCameraId();

  TStageObject *camera    = xsh->getStageObject(cameraId);

  TAffine cameraPlacement = camera->getPlacement(frame);

  double cameraZ          = camera->getZ(frame);

  TAffine placement;

  TStageObject::perspective(placement, cameraPlacement, cameraZ, objPlacement,

                            objZ, 0);

  return placement;

}

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

void TTool::updateMatrix() {

  assert(m_application);

  if (m_application->getCurrentObject()->isSpline())

    setMatrix(getCurrentObjectParentMatrix2());

  else

    setMatrix(getCurrentColumnMatrix());

}

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

void TTool::resetInputMethod() {

  if (m_viewer) m_viewer->resetInputMethod();

}

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

bool TTool::isColumnLocked(int columnIndex) const {

  if (columnIndex < 0) return false;

  TXsheet *xsh       = getXsheet();

  TXshColumn *column = xsh->getColumn(columnIndex);

  return column->isLocked();

}

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

QString TTool::updateEnabled() {

  // Disable every tool during playback

  if (m_application->getCurrentFrame()->isPlaying())

    return (enable(false), QString());

  // Release Generic tools at once

  int toolType   = getToolType();

  int targetType = getTargetType();

  if (toolType == TTool::GenericTool) return (enable(true), QString());

  // Retrieve vars and view modes

  TXsheet *xsh = m_application->getCurrentXsheet()->getXsheet();

  int rowIndex       = m_application->getCurrentFrame()->getFrame();

  int columnIndex    = m_application->getCurrentColumn()->getColumnIndex();

  TXshColumn *column = (columnIndex >= 0) ? xsh->getColumn(columnIndex) : 0;

  TXshLevel *xl       = m_application->getCurrentLevel()->getLevel();

  TXshSimpleLevel *sl = xl ? xl->getSimpleLevel() : 0;

  int levelType       = sl ? sl->getType() : NO_XSHLEVEL;

  if (Preferences::instance()->isAutoCreateEnabled() &&

      Preferences::instance()->isAnimationSheetEnabled()) {

    // If not in Level editor, let's use our current cell from the xsheet to

    // find the nearest level before it

    if (levelType == NO_XSHLEVEL &&

        !m_application->getCurrentFrame()->isEditingLevel()) {

      int r0, r1;

      xsh->getCellRange(columnIndex, r0, r1);

      for (int r = std::min(r1, rowIndex); r > r0; r--) {

        TXshCell cell = xsh->getCell(r, columnIndex);

        if (cell.isEmpty()) continue;

        xl        = (TXshLevel *)(&cell.m_level);

        sl        = cell.getSimpleLevel();

        levelType = cell.m_level->getType();

        break;

      }

    }

    // If the current tool does not match the current type, check for

    // a version of the same tool that does

    {

      TTool *tool = this;

      if ((levelType == PLI_XSHLEVEL) && !(targetType & VectorImage))

        tool = TTool::getTool(m_name, VectorImage);

      else if ((levelType == TZP_XSHLEVEL) && !(targetType & ToonzImage))

        tool = TTool::getTool(m_name, ToonzImage);

      else if ((levelType == OVL_XSHLEVEL) && !(targetType & RasterImage))

        tool = TTool::getTool(m_name, RasterImage);

      else if ((levelType == MESH_XSHLEVEL) && !(targetType & MeshImage))

        tool = TTool::getTool(m_name, MeshImage);

      if (tool && tool != this && tool->getTargetType() != TTool::NoTarget)

        return tool->updateEnabled();

    }

  }

  TStageObject *obj =

      xsh->getStageObject(TStageObjectId::ColumnId(columnIndex));

  bool spline = m_application->getCurrentObject()->isSpline();

  bool filmstrip = m_application->getCurrentFrame()->isEditingLevel();

  /*-- MultiLayerStylePickerONのときは、現状に関わらず使用可能 --*/

  if (m_name == T_StylePicker &&

      Preferences::instance()->isMultiLayerStylePickerEnabled())

    return (enable(true), QString());

  // Check against camera column

  if (!filmstrip && columnIndex < 0 && (targetType & TTool::EmptyTarget) &&

      (m_name == T_Type || m_name == T_Geometric || m_name == T_Brush))

    return (enable(false), QString());

  // In case of Animate Tool

  if (m_name == T_Edit && !filmstrip) {

    // if an object other than column is selected, then enable the tool

    // regardless of the current column state

    if (!m_application->getCurrentObject()->getObjectId().isColumn())

      return (enable(true), QString());

    // if a column object is selected, switch the inspected column to it

    column = xsh->getColumn(

        m_application->getCurrentObject()->getObjectId().getIndex());

  }

  // Check against splines

  if (spline && (toolType & TTool::LevelTool)) {

    return (targetType & Splines)

               ? (enable(true), QString())

               : (enable(false), QObject::tr("The current tool cannot be "

                                             "used to edit a motion path."));

  }

  // Check against unplaced columns (not in filmstrip mode)

  if (column && !filmstrip) {

    if (column->isLocked())

      return (enable(false), QObject::tr("The current column is locked."));

    else if (!column->isCamstandVisible())

      return (enable(false), QObject::tr("The current column is hidden."));

    else if (column->getSoundColumn())

      return (enable(false),