#include "tools/strokeselection.h"

// TnzTools includes

#include "tools/imagegrouping.h"

#include "tools/toolhandle.h"

#include "tools/tool.h"

#include "tools/toolutils.h"

// TnzQt includes

#include "toonzqt/selectioncommandids.h"

#include "toonzqt/imageutils.h"

#include "toonzqt/tselectionhandle.h"

#include "toonzqt/strokesdata.h"

#include "toonzqt/rasterimagedata.h"

#include "toonzqt/dvdialog.h"

// TnzLib includes

#include "toonz/tpalettehandle.h"

#include "toonz/palettecontroller.h"

#include "toonz/tobjecthandle.h"

#include "toonz/txshlevelhandle.h"

#include "toonz/tscenehandle.h"

#include "toonz/tcenterlinevectorizer.h"

#include "toonz/stage.h"

#include "toonz/tstageobject.h"

#include "toonz/toonzscene.h"

#include "toonz/sceneproperties.h"

// TnzCore includes

#include "tthreadmessage.h"

#include "tundo.h"

#include "tstroke.h"

#include "tvectorimage.h"

#include "tcolorstyles.h"

#include "tpalette.h"

// Qt includes

#include <qapplication></qapplication>

#include <qclipboard></qclipboard>

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

namespace {

void vectorizeToonzImageData(const TVectorImageP &image,

                             const ToonzImageData *tiData,

                             std::set<int> &indexes, TPalette *palette,</int>

                             const VectorizerConfiguration &config) {

  if (!tiData) return;

  QApplication::setOverrideCursor(Qt::WaitCursor);

  TRasterP ras;

  std::vector<trectd> rects;</trectd>

  std::vector<tstroke> strokes;</tstroke>

  std::vector<tstroke> originalStrokes;</tstroke>

  TAffine affine;

  double dpiX, dpiY;

  tiData->getData(ras, dpiX, dpiY, rects, strokes, originalStrokes, affine,

                  image->getPalette());

  TRasterCM32P rasCM = ras;

  TToonzImageP ti(rasCM, rasCM->getBounds());

  VectorizerCore vc;

  TVectorImageP vi = vc.vectorize(ti, config, palette);

  assert(vi);

  vi->setPalette(palette);

  TScale sc(dpiX / Stage::inch, dpiY / Stage::inch);

  int i;

  TRectD selectionBounds;

  for (i = 0; i < (int)rects.size(); i++) selectionBounds += rects[i];

  for (i = 0; i < (int)strokes.size(); i++)

    selectionBounds += strokes[i].getBBox();

  TTranslation tr(selectionBounds.getP00());

  for (i = 0; i < (int)vi->getStrokeCount(); i++) {

    TStroke *stroke = vi->getStroke(i);

    stroke->transform(sc.inv() * affine * tr, true);

  }

  UINT oldImageSize = image->getStrokeCount();

  image->mergeImage(vi, TAffine());

  UINT newImageSize = image->getStrokeCount();

  indexes.clear();

  for (UINT sI = oldImageSize; sI < newImageSize; sI++) indexes.insert(sI);

  QApplication::restoreOverrideCursor();

}

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

void copyStrokesWithoutUndo(TVectorImageP image, std::set<int> &indexes) {</int>

  QClipboard *clipboard = QApplication::clipboard();

  StrokesData *data     = new StrokesData();

  data->setImage(image, indexes);

  clipboard->setMimeData(data, QClipboard::Clipboard);

}

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

bool pasteStrokesWithoutUndo(TVectorImageP image, std::set<int> &outIndexes,</int>

                             TSceneHandle *sceneHandle, bool insert = true) {

  QMutexLocker lock(image->getMutex());

  QClipboard *clipboard = QApplication::clipboard();

  const StrokesData *stData =

      dynamic_cast<const *="" strokesdata="">(clipboard->mimeData());</const>

  const ToonzImageData *tiData =

      dynamic_cast<const *="" toonzimagedata="">(clipboard->mimeData());</const>

  const FullColorImageData *fciData =

      dynamic_cast<const *="" fullcolorimagedata="">(clipboard->mimeData());</const>

  std::set<int> indexes = outIndexes;</int>

  if (stData)

    stData->getImage(image, indexes, insert);

  else if (tiData) {

    ToonzScene *scene = sceneHandle->getScene();

    assert(scene);

    const VectorizerParameters *vParams =

        scene->getProperties()->getVectorizerParameters();

    assert(vParams);

    std::unique_ptr<vectorizerconfiguration> config(</vectorizerconfiguration>

        vParams->getCurrentConfiguration(0.0));

    vectorizeToonzImageData(image, tiData, indexes, image->getPalette(),

                            *config);

  } else if (fciData) {

    DVGui::error(QObject::tr(

        "The copied selection cannot be pasted in the current drawing."));

    return false;

  } else

    return false;

  StrokeSelection *selection = dynamic_cast<strokeselection *="">(</strokeselection>

      TTool::getApplication()->getCurrentSelection()->getSelection());

  if (selection) selection->notifyView();

  outIndexes = indexes;  // outIndexes is a reference  to current  selection, so

                         // the notifyImageChanged could reset it!

  return true;

}

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

void deleteStrokesWithoutUndo(TVectorImageP image, std::set<int> &indexes) {</int>

  QMutexLocker lock(image->getMutex());

  std::vector<int> indexesV(indexes.begin(), indexes.end());</int>

  TRectD bbox;

  UINT i = 0;

  for (; i < indexesV.size(); i++)

    bbox += image->getStroke(indexesV[i])->getBBox();

  std::vector<tfilledregioninf> regions;</tfilledregioninf>

  ImageUtils::getFillingInformationOverlappingArea(image, regions, bbox);

  TVectorImageP other = image->splitImage(indexesV, true);

  indexes.clear();

  TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

  StrokeSelection *selection = dynamic_cast<strokeselection *="">(</strokeselection>

      TTool::getApplication()->getCurrentSelection()->getSelection());

  if (selection) selection->notifyView();

}

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

void cutStrokesWithoutUndo(TVectorImageP image, std::set<int> &indexes) {</int>

  copyStrokesWithoutUndo(image, indexes);

  deleteStrokesWithoutUndo(image, indexes);

}

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

// CopyStrokesUndo

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

class CopyStrokesUndo final : public TUndo {

  QMimeData *m_oldData;

  QMimeData *m_newData;

public:

  CopyStrokesUndo(QMimeData *oldData, QMimeData *newData)

      : m_oldData(oldData), m_newData(newData) {}

  void undo() const override {

    QClipboard *clipboard = QApplication::clipboard();

    clipboard->setMimeData(cloneData(m_oldData), QClipboard::Clipboard);

  }

  void redo() const override {

    QClipboard *clipboard = QApplication::clipboard();

    clipboard->setMimeData(cloneData(m_newData), QClipboard::Clipboard);

  }

  int getSize() const override { return sizeof(*this); }

};

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

// PasteStrokesUndo

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

class PasteStrokesUndo final : public TUndo {

  TXshSimpleLevelP m_level;

  TFrameId m_frameId;

  std::set<int> m_indexes;</int>

  TPaletteP m_oldPalette;

  QMimeData *m_oldData;

  TSceneHandle *m_sceneHandle;

public:

  PasteStrokesUndo(TXshSimpleLevel *level, const TFrameId &frameId,

                   std::set<int> &indexes, TPaletteP oldPalette,</int>

                   TSceneHandle *sceneHandle)

      : m_level(level)

      , m_frameId(frameId)

      , m_indexes(indexes)

      , m_oldPalette(oldPalette)

      , m_sceneHandle(sceneHandle) {

    QClipboard *clipboard = QApplication::clipboard();

    m_oldData             = cloneData(clipboard->mimeData());

  }

  ~PasteStrokesUndo() { delete m_oldData; }

  void undo() const override {

    TVectorImageP image = m_level->getFrame(m_frameId, true);

    // Se la selezione corrente e' la stroke selection devo svuotarla,

    // altrimenti puo' rimanere selezionato uno stroke che non esiste piu'.

    StrokeSelection *selection = dynamic_cast<strokeselection *="">(</strokeselection>

        TTool::getApplication()->getCurrentSelection()->getSelection());

    if (selection) selection->selectNone();

    std::set<int> indexes = m_indexes;</int>

    deleteStrokesWithoutUndo(image, indexes);

  }

  void redo() const override {

    TVectorImageP image   = m_level->getFrame(m_frameId, true);

    std::set<int> indexes = m_indexes;</int>

    QClipboard *clipboard = QApplication::clipboard();

    QMimeData *data       = cloneData(clipboard->mimeData());

    clipboard->setMimeData(cloneData(m_oldData), QClipboard::Clipboard);

    pasteStrokesWithoutUndo(image, indexes, m_sceneHandle);

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

    clipboard->setMimeData(data, QClipboard::Clipboard);

  }

  int getSize() const override { return sizeof(*this); }

};

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

class RemoveEndpointsUndo final : public TUndo {

  TXshSimpleLevelP m_level;

  TFrameId m_frameId;

  std::vector<std::pair<int, *="" tstroke="">> m_strokes;</std::pair<int,>

public:

  RemoveEndpointsUndo(TXshSimpleLevel *level, const TFrameId &frameId,

                      std::vector<std::pair<int, *="" tstroke="">> strokes)</std::pair<int,>

      : m_level(level)

      , m_frameId(frameId)

      , m_strokes(strokes)

  {}

  ~RemoveEndpointsUndo() {

    int i;

    for (i = 0; i < (int)m_strokes.size(); i++) delete m_strokes[i].second;

  }

  void undo() const override {

    TVectorImageP vi = m_level->getFrame(m_frameId, true);

    int i;

    for (i = 0; i < (int)m_strokes.size(); i++) {

      TStroke *newS = new TStroke(*(m_strokes[i].second));

      newS->setId(m_strokes[i].second->getId());

      vi->restoreEndpoints(m_strokes[i].first, newS);

    }

    StrokeSelection *selection = dynamic_cast<strokeselection *="">(</strokeselection>

        TTool::getApplication()->getCurrentSelection()->getSelection());

    if (selection) selection->selectNone();

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

  }

  void redo() const override {

    int i;

    TVectorImageP vi = m_level->getFrame(m_frameId, true);

    for (i = 0; i < (int)m_strokes.size(); i++) {

      TStroke *s = vi->removeEndpoints(m_strokes[i].first);

      delete s;

      // assert(s==m_strokes[i].second);

    }

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

  }

  int getSize() const override { return sizeof(*this); }

};

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

// DeleteFramesUndo

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

class DeleteStrokesUndo : public TUndo {

protected:

  TXshSimpleLevelP m_level;

  TFrameId m_frameId;

  std::set<int> m_indexes;</int>

  QMimeData *m_data;

  TSceneHandle *m_sceneHandle;

public:

  DeleteStrokesUndo(TXshSimpleLevel *level, const TFrameId &frameId,

                    std::set<int> indexes, QMimeData *data,</int>

                    TSceneHandle *sceneHandle)

      : m_level(level)

      , m_frameId(frameId)

      , m_indexes(indexes)

      , m_data(data)

      , m_sceneHandle(sceneHandle) {}

  ~DeleteStrokesUndo() { delete m_data; }

  void undo() const override {

    QClipboard *clipboard = QApplication::clipboard();

    QMimeData *oldData    = cloneData(clipboard->mimeData());

    clipboard->setMimeData(cloneData(m_data), QClipboard::Clipboard);

    std::set<int> indexes = m_indexes;</int>

    TVectorImageP image   = m_level->getFrame(m_frameId, true);

    pasteStrokesWithoutUndo(image, indexes, m_sceneHandle, false);

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

    clipboard->setMimeData(oldData, QClipboard::Clipboard);

  }

  void redo() const override {

    TVectorImageP image   = m_level->getFrame(m_frameId, true);

    std::set<int> indexes = m_indexes;</int>

    deleteStrokesWithoutUndo(image, indexes);

  }

  int getSize() const override { return sizeof(*this); }

};

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

// CutStrokesUndo

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

class CutStrokesUndo final : public DeleteStrokesUndo {

public:

  CutStrokesUndo(TXshSimpleLevel *level, const TFrameId &frameId,

                 std::set<int> indexes, QMimeData *data,</int>

                 TSceneHandle *sceneHandle)

      : DeleteStrokesUndo(level, frameId, indexes, data, sceneHandle) {}

  ~CutStrokesUndo() {}

  void redo() const override {

    TVectorImageP image   = m_level->getFrame(m_frameId, true);

    std::set<int> indexes = m_indexes;</int>

    cutStrokesWithoutUndo(image, indexes);

  }

};

}  // namespace

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

//

// StrokeSelection ctor/dtor

//

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

StrokeSelection::StrokeSelection()

    : m_groupCommand(new TGroupCommand())

    , m_sceneHandle()

    , m_updateSelectionBBox(false) {

  m_groupCommand->setSelection(this);

}

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

StrokeSelection::~StrokeSelection() {}

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

StrokeSelection::StrokeSelection(const StrokeSelection &other)

    : m_vi(other.m_vi)

    , m_indexes(other.m_indexes)

    , m_groupCommand(new TGroupCommand())

    , m_sceneHandle(other.m_sceneHandle)

    , m_updateSelectionBBox(other.m_updateSelectionBBox) {

  m_groupCommand->setSelection(this);

}

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

StrokeSelection &StrokeSelection::operator=(const StrokeSelection &other) {

  m_vi                  = other.m_vi;

  m_indexes             = other.m_indexes;

  m_sceneHandle         = other.m_sceneHandle;

  m_updateSelectionBBox = other.m_updateSelectionBBox;

  return *this;

}

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

void StrokeSelection::select(int index, bool on) {

  if (on)

    m_indexes.insert(index);

  else

    m_indexes.erase(index);

}

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

void StrokeSelection::toggle(int index) {

  std::set<int>::iterator it = m_indexes.find(index);</int>

  if (it == m_indexes.end())

    m_indexes.insert(index);

  else

    m_indexes.erase(it);

}

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

//

// removeEndpoints

//

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

void StrokeSelection::removeEndpoints() {

  if (!m_vi) return;

  if (m_indexes.empty()) return;

  std::vector<std::pair<int, *="" tstroke="">> undoData;</std::pair<int,>

  m_vi->findRegions();

  set<int>::iterator it = m_indexes.begin();</int>

  for (; it != m_indexes.end(); ++it) {

    TStroke *s = m_vi->removeEndpoints(*it);

    if (s) undoData.push_back(std::pair<int, *="" tstroke="">(*it, s));</int,>

  }

  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();

  TXshSimpleLevel *level =

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

  if (!undoData.empty())

    TUndoManager::manager()->add(

        new RemoveEndpointsUndo(level, tool->getCurrentFid(), undoData));

  m_updateSelectionBBox = true;

  tool->notifyImageChanged();

  m_updateSelectionBBox = false;

}

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

//

// selectAll

//

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

void StrokeSelection::selectAll() {

  if (!m_vi) return;

  int sCount = int(m_vi->getStrokeCount());

  for (int s = 0; s < sCount; ++s) {

     m_indexes.insert(s);

  }

  StrokeSelection *selection = dynamic_cast<strokeselection *="">(</strokeselection>

      TTool::getApplication()->getCurrentSelection()->getSelection());

  if (selection) selection->notifyView();

}

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

//

// deleteStrokes

//

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

void StrokeSelection::deleteStrokes() {

  if (!m_vi) return;

  if (m_indexes.empty()) return;

  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();

  if (!tool) return;

  bool isSpline = tool->getApplication()->getCurrentObject()->isSpline();

  TUndo *undo;

  if (isSpline)

    undo = new ToolUtils::UndoPath(

        tool->getXsheet()->getStageObject(tool->getObjectId())->getSpline());

  StrokesData *data = new StrokesData();

  data->setImage(m_vi, m_indexes);

  std::set<int> oldIndexes = m_indexes;</int>

  deleteStrokesWithoutUndo(m_vi, m_indexes);

  if (!isSpline) {

    TXshSimpleLevel *level =

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

    TUndoManager::manager()->add(new DeleteStrokesUndo(

        level, tool->getCurrentFid(), oldIndexes, data, m_sceneHandle));

  } else {

    assert(undo);

    if (undo) TUndoManager::manager()->add(undo);

  }

}

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

//

// StrokeSelection::copy()

//

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

void StrokeSelection::copy() {

  if (m_indexes.empty()) return;

  QClipboard *clipboard = QApplication::clipboard();

  QMimeData *oldData    = cloneData(clipboard->mimeData());

  copyStrokesWithoutUndo(m_vi, m_indexes);

  QMimeData *newData = cloneData(clipboard->mimeData());

  // TUndoManager::manager()->add(new CopyStrokesUndo(oldData, newData));

}

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

//

// StrokeSelection::paste()

//

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

void StrokeSelection::paste() {

  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();

  if (!tool) return;

  if (TTool::getApplication()->getCurrentObject()->isSpline()) {

    const StrokesData *stData = dynamic_cast<const *="" strokesdata="">(</const>

        QApplication::clipboard()->mimeData());

    if (!stData) return;

    TVectorImageP splineImg = tool->getImage(true);

    TVectorImageP img       = stData->m_image;

    if (!splineImg || !img) return;

    QMutexLocker lock(splineImg->getMutex());

    TUndo *undo = new ToolUtils::UndoPath(

        tool->getXsheet()->getStageObject(tool->getObjectId())->getSpline());

    while (splineImg->getStrokeCount() > 0) splineImg->deleteStroke(0);

    TStroke *stroke = img->getStroke(0);

    splineImg->addStroke(new TStroke(*stroke), false);

    TUndoManager::manager()->add(undo);

    tool->notifyImageChanged();

    tool->invalidate();

    return;

  }

  TVectorImageP tarImg = tool->touchImage();

  if (!tarImg) return;

  TPaletteP palette       = tarImg->getPalette();

  TPaletteP oldPalette    = new TPalette();

  if (palette) oldPalette = palette->clone();

  bool isPaste = pasteStrokesWithoutUndo(tarImg, m_indexes, m_sceneHandle);

  if (isPaste) {

    TXshSimpleLevel *level =

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

    TUndoManager::manager()->add(new PasteStrokesUndo(

        level, tool->getCurrentFid(), m_indexes, oldPalette, m_sceneHandle));

    m_updateSelectionBBox = isPaste;

  }

  tool->notifyImageChanged();

  tool->getApplication()

      ->getPaletteController()

      ->getCurrentLevelPalette()

      ->notifyPaletteChanged();

  m_updateSelectionBBox = false;

  tool->invalidate();

}

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

//

// StrokeSelection::cut()

//

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

void StrokeSelection::cut() {

  if (m_indexes.empty()) return;

  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();

  if (!tool) return;

  bool isSpline = tool->getApplication()->getCurrentObject()->isSpline();

  TUndo *undo;

  if (isSpline)

    undo = new ToolUtils::UndoPath(

        tool->getXsheet()->getStageObject(tool->getObjectId())->getSpline());

  StrokesData *data = new StrokesData();

  data->setImage(m_vi, m_indexes);

  std::set<int> oldIndexes = m_indexes;</int>

  cutStrokesWithoutUndo(m_vi, m_indexes);

  if (!isSpline) {

    TXshSimpleLevel *level =

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

    TUndoManager::manager()->add(new CutStrokesUndo(

        level, tool->getCurrentFid(), oldIndexes, data, m_sceneHandle));

  } else {

    assert(undo);

    if (undo) TUndoManager::manager()->add(undo);

  }

}

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

//

// enableCommands

//

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

void StrokeSelection::enableCommands() {

  enableCommand(this, MI_Clear, &StrokeSelection::deleteStrokes);

  enableCommand(this, MI_Cut, &StrokeSelection::cut);

  enableCommand(this, MI_Copy, &StrokeSelection::copy);

  enableCommand(this, MI_Paste, &StrokeSelection::paste);

  enableCommand(m_groupCommand.get(), MI_Group, &TGroupCommand::group);

  enableCommand(m_groupCommand.get(), MI_Ungroup, &TGroupCommand::ungroup);

  enableCommand(m_groupCommand.get(), MI_BringToFront, &TGroupCommand::front);

  enableCommand(m_groupCommand.get(), MI_BringForward, &TGroupCommand::forward);

  enableCommand(m_groupCommand.get(), MI_SendBack, &TGroupCommand::back);

  enableCommand(m_groupCommand.get(), MI_SendBackward,

                &TGroupCommand::backward);

  enableCommand(m_groupCommand.get(), MI_EnterGroup,

                &TGroupCommand::enterGroup);

  enableCommand(m_groupCommand.get(), MI_ExitGroup, &TGroupCommand::exitGroup);

  enableCommand(this, MI_RemoveEndpoints, &StrokeSelection::removeEndpoints);

  enableCommand(this, MI_SelectAll, &StrokeSelection::selectAll);

}

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

namespace {

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

class UndoSetStrokeStyle final : public TUndo {

  TVectorImageP m_image;

  std::vector<int> m_strokeIndexes;</int>

  std::vector<int> m_oldStyles;</int>

  int m_newStyle;

public:

  UndoSetStrokeStyle(TVectorImageP image, int newStyle)

      : m_image(image), m_newStyle(newStyle) {}

  void addStroke(TStroke *stroke) {

    m_strokeIndexes.push_back(m_image->getStrokeIndex(stroke));

    m_oldStyles.push_back(stroke->getStyle());

  }

  void undo() const override {

    UINT size = m_strokeIndexes.size();

    assert(size == m_oldStyles.size());

    for (UINT i = 0; i != size; i++) {

      int index = m_strokeIndexes[i];

      if (index != -1 && index < (int)m_image->getStrokeCount())

        m_image->getStroke(index)->setStyle(m_oldStyles[i]);

    }

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

  }

  void redo() const override {

    UINT size = m_strokeIndexes.size();

    assert(size == m_oldStyles.size());

    for (UINT i = 0; i != size; i++) {

      int index = m_strokeIndexes[i];

      if (index != -1 && index < (int)m_image->getStrokeCount())

        m_image->getStroke(index)->setStyle(m_newStyle);

    }

    TTool::getApplication()->getCurrentTool()->getTool()->notifyImageChanged();

  }

  int getSize() const override {

    return sizeof(*this) +

           m_strokeIndexes.capacity() * sizeof(m_strokeIndexes[0]) +

           m_oldStyles.capacity() * sizeof(m_oldStyles[0]);

  }

};

}  // namespace

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

//

// changeColorStyle

//

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

void StrokeSelection::changeColorStyle(int styleIndex) {

  TTool *tool = TTool::getApplication()->getCurrentTool()->getTool();

  if (!tool) return;

  TVectorImageP img(tool->getImage(true));

  if (!img) return;

  TPalette *palette = img->getPalette();

  TColorStyle *cs   = palette->getStyle(styleIndex);

  if (!cs->isStrokeStyle()) return;

  if (m_indexes.empty()) return;

  UndoSetStrokeStyle *undo = new UndoSetStrokeStyle(img, styleIndex);

  std::set<int>::iterator it;</int>

  for (it = m_indexes.begin(); it != m_indexes.end(); ++it) {

    int index = *it;

    assert(0 <= index && index < (int)img->getStrokeCount());

    TStroke *stroke = img->getStroke(index);

    undo->addStroke(stroke);

    stroke->setStyle(styleIndex);

  }

  tool->notifyImageChanged();

  TUndoManager::manager()->add(undo);

}