#include "toonzqt/studiopaletteviewer.h"

// TnzQt includes

#include "toonzqt/menubarcommand.h"

#include "toonzqt/paletteviewer.h"

#include "toonzqt/dvdialog.h"

#include "toonzqt/trepetitionguard.h"

#include "toonzqt/gutil.h"

#include "toonzqt/icongenerator.h"

#include "toonzqt/intfield.h"

#include "palettesscanpopup.h"

#include "palettedata.h"

// TnzLib includes

#include "toonz/studiopalettecmd.h"

#include "toonz/tpalettehandle.h"

#include "toonz/txshsimplelevel.h"

#include "toonz/toonzscene.h"

#include "toonz/sceneproperties.h"

#include "toonz/txsheethandle.h"

#include "toonz/txshlevelhandle.h"

// TnzCore includes

#include "tconvert.h"

#include "tundo.h"

#include "tsystem.h"

#include "../toonz/menubarcommandids.h"

// Qt includes

#include <qheaderview></qheaderview>

#include <qcontextmenuevent></qcontextmenuevent>

#include <qmenu></qmenu>

#include <qurl></qurl>

#include <qpainter></qpainter>

#include <qvboxlayout></qvboxlayout>

#include <qtoolbar></qtoolbar>

#include <qinputdialog></qinputdialog>

#include <qpushbutton></qpushbutton>

#include <qdrag></qdrag>

#include <time.h></time.h>

using namespace std;

using namespace PaletteViewerGUI;

using namespace DVGui;

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

namespace {

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

/*! Return true if path is in folder \b rootPath of \b StudioPalette.

*/

bool isInStudioPaletteFolder(TFilePath path, TFilePath rootPath) {

  if (path.getType() != "tpl") return false;

  StudioPalette *studioPalette = StudioPalette::instance();

  std::vector<tfilepath> childrenPath;</tfilepath>

  studioPalette->getChildren(childrenPath, rootPath);

  int i;

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

    if (path == childrenPath[i])

      return true;

    else if (isInStudioPaletteFolder(path, childrenPath[i]))

      return true;

  }

  return false;

}

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

/*! Return true if path is in a \b StudioPalette folder.

*/

bool isInStudioPalette(TFilePath path) {

  if (path.getType() != "tpl") return false;

  StudioPalette *studioPalette = StudioPalette::instance();

  if (isInStudioPaletteFolder(path, studioPalette->getLevelPalettesRoot()))

    return true;

  if (isInStudioPaletteFolder(path, studioPalette->getProjectPalettesRoot()))

    return true;

  return false;

}

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

}  // namespace

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

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

// StudioPaletteTreeViewer

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

StudioPaletteTreeViewer::StudioPaletteTreeViewer(

    QWidget *parent, TPaletteHandle *studioPaletteHandle,

    TPaletteHandle *levelPaletteHandle, TXsheetHandle *xsheetHandle,

    TXshLevelHandle *currentLevelHandle)

    : QTreeWidget(parent)

    , m_dropItem(0)

    , m_studioPaletteHandle(studioPaletteHandle)

    , m_levelPaletteHandle(levelPaletteHandle)

    , m_currentLevelHandle(currentLevelHandle)

    , m_xsheetHandle(xsheetHandle)

    , m_folderIcon(QIcon())

    , m_levelPaletteIcon(QIcon())

    , m_studioPaletteIcon(QIcon()) {

  setIndentation(14);

  setAlternatingRowColors(true);

  header()->close();

  setUniformRowHeights(true);

  setIconSize(QSize(21, 17));

  QList<qtreewidgetitem *=""> paletteItems;</qtreewidgetitem>

  QString open  = QString(":Resources/folder_close.png");

  QString close = QString(":Resources/folder_open.png");

  m_folderIcon.addFile(close, QSize(21, 17), QIcon::Normal, QIcon::On);

  m_folderIcon.addFile(open, QSize(21, 17), QIcon::Normal, QIcon::Off);

  QString levelPaletteIcon = QString(":Resources/palette.png");

  m_levelPaletteIcon.addPixmap(levelPaletteIcon, QIcon::Normal, QIcon::On);

  QString studioPaletteIcon = QString(":Resources/studiopalette.png");

  m_studioPaletteIcon.addPixmap(studioPaletteIcon, QIcon::Normal, QIcon::On);

  StudioPalette *studioPalette = StudioPalette::instance();

  TFilePath levelPalettePath = studioPalette->getLevelPalettesRoot();

  paletteItems.append(createRootItem(levelPalettePath));

  TFilePath projectPalettePath = studioPalette->getProjectPalettesRoot();

  if (TSystem::doesExistFileOrLevel(projectPalettePath))

    paletteItems.append(createRootItem(projectPalettePath));

  insertTopLevelItems(0, paletteItems);

  bool ret = connect(this, SIGNAL(itemChanged(QTreeWidgetItem *, int)),

                     SLOT(onItemChanged(QTreeWidgetItem *, int)));

  ret = ret && connect(this, SIGNAL(itemClicked(QTreeWidgetItem *, int)),

                       SLOT(onItemClicked(QTreeWidgetItem *, int)));

  ret =

      ret &&

      connect(this,

              SIGNAL(currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)),

              SLOT(onCurrentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)));

  ret = ret && connect(this, SIGNAL(itemClicked(QTreeWidgetItem *, int)), this,

                       SLOT(onTreeItemExpanded(QTreeWidgetItem *)));

  // refresh tree with shortcut key

  QAction *refreshAct = CommandManager::instance()->getAction(MI_RefreshTree);

  ret                 = ret && connect(refreshAct, SIGNAL(triggered()), this,

                       SLOT(onRefreshTreeShortcutTriggered()));

  addAction(refreshAct);

  m_palettesScanPopup = new PalettesScanPopup();

  setAcceptDrops(true);

  // Per la selezione multipla

  setSelectionMode(QAbstractItemView::ExtendedSelection);

  StudioPalette::instance()->addListener(this);

  TProjectManager::instance()->addListener(this);

  refresh();

  assert(ret);

}

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

StudioPaletteTreeViewer::~StudioPaletteTreeViewer() {

  StudioPalette::instance()->removeListener(this);

  TProjectManager::instance()->removeListener(this);

}

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

void StudioPaletteTreeViewer::setCurrentLevelHandle(

    TXshLevelHandle *currentLevelHandle) {

  m_currentLevelHandle = currentLevelHandle;

}

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

void StudioPaletteTreeViewer::setLevelPaletteHandle(

    TPaletteHandle *paletteHandle) {

  m_levelPaletteHandle = paletteHandle;

}

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

void StudioPaletteTreeViewer::setStdPaletteHandle(

    TPaletteHandle *studioPaletteHandle) {

  m_studioPaletteHandle = studioPaletteHandle;

}

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

QTreeWidgetItem *StudioPaletteTreeViewer::createRootItem(TFilePath path) {

  QString rootName = QString::fromStdWString(path.getWideName());

  if (rootName != "Global Palettes") rootName = "Project Palettes";

  QTreeWidgetItem *rootItem =

      new QTreeWidgetItem((QTreeWidget *)0, QStringList(rootName));

  rootItem->setIcon(0, m_folderIcon);

  rootItem->setData(1, Qt::UserRole, toQString(path));

  refreshItem(rootItem);

  return rootItem;

}

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

bool StudioPaletteTreeViewer::isRootItem(QTreeWidgetItem *item) {

  assert(item);

  TFilePath path = getItemPath(item);

  StudioPalette *studioPalette = StudioPalette::instance();

  if (path == studioPalette->getLevelPalettesRoot() ||

      path == studioPalette->getProjectPalettesRoot())

    return true;

  return false;

}

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

QTreeWidgetItem *StudioPaletteTreeViewer::createItem(const TFilePath path) {

  StudioPalette *studioPalette = StudioPalette::instance();

  QString itemName             = toQString(TFilePath(path.getWideName()));

  QTreeWidgetItem *item =

      new QTreeWidgetItem((QTreeWidget *)0, QStringList(itemName));

  if (studioPalette->isPalette(path)) {

    if (studioPalette->hasGlobalName(path))

      item->setIcon(0, m_studioPaletteIcon);

    else

      item->setIcon(0, m_levelPaletteIcon);

  } else if (studioPalette->isFolder(path))

    item->setIcon(0, m_folderIcon);

  item->setData(1, Qt::UserRole, toQString(path));

  item->setFlags(item->flags() | Qt::ItemIsEditable);

  return item;

}

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

TFilePath StudioPaletteTreeViewer::getItemPath(QTreeWidgetItem *item) {

  TFilePath path =

      (item) ? TFilePath(item->data(1, Qt::UserRole).toString().toStdWString())

             : TFilePath();

  return path;

}

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

TFilePath StudioPaletteTreeViewer::getCurrentFolderPath() {

  return getItemPath(currentItem());

}

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

QTreeWidgetItem *StudioPaletteTreeViewer::getItem(const TFilePath path) {

  QList<qtreewidgetitem *=""> oldItems =</qtreewidgetitem>

      findItems(QString(""), Qt::MatchContains, 0);

  if (oldItems.isEmpty()) return 0;

  int i;

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

    TFilePath oldItemPath(

        oldItems[i]->data(1, Qt::UserRole).toString().toStdWString());

    if (oldItemPath == path)

      return oldItems[i];

    else {

      QTreeWidgetItem *item = getFolderItem(oldItems[i], path);

      if (item) return item;

    }

  }

  return 0;

}

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

QTreeWidgetItem *StudioPaletteTreeViewer::getFolderItem(QTreeWidgetItem *parent,

                                                        const TFilePath path) {

  int childrenCount = parent->childCount();

  int i;

  for (i = 0; i < childrenCount; i++) {

    QTreeWidgetItem *item = parent->child(i);

    if (getItemPath(item) == path)

      return item;

    else {

      item = getFolderItem(item, path);

      if (item) return item;

    }

  }

  return 0;

}

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

void StudioPaletteTreeViewer::resetDropItem() {

  if (!m_dropItem) return;

  m_dropItem->setTextColor(0, Qt::black);

  m_dropItem = 0;

}

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

void StudioPaletteTreeViewer::refresh() {

  m_openedItems.clear();

  StudioPalette *studioPalette = StudioPalette::instance();

  TFilePath levelPalettePath = studioPalette->getLevelPalettesRoot();

  refreshItem(getItem(levelPalettePath));

  TFilePath projectPalettePath = studioPalette->getProjectPalettesRoot();

  if (!TSystem::doesExistFileOrLevel(projectPalettePath)) return;

  refreshItem(getItem(projectPalettePath));

  // refresh all expanded items

  QList<qtreewidgetitem *=""> items =</qtreewidgetitem>

      findItems(QString(""), Qt::MatchContains | Qt::MatchRecursive, 0);

  if (items.isEmpty()) return;

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

    if (items[i]->isExpanded()) refreshItem(items[i]);

}

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

/*!When expand a tree, prepare the child items of it

*/

void StudioPaletteTreeViewer::onTreeItemExpanded(QTreeWidgetItem *item) {

  if (!item) return;

  // if this item was not yet opened, then get the children of this item

  if (!m_openedItems.contains(item)) refreshItem(item);

  // expand the item

  item->setExpanded(!item->isExpanded());

}

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

/*! Refresh tree only when this widget has focus

*/

void StudioPaletteTreeViewer::onRefreshTreeShortcutTriggered() {

  if (hasFocus()) refresh();

}

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

/*! Update the content of item

*/

void StudioPaletteTreeViewer::refreshItem(QTreeWidgetItem *item) {

  TFilePath folderPath = getItemPath(item);

  assert(folderPath != TFilePath());

  // correct only tpl files and folders

  std::vector<tfilepath> childrenPath;</tfilepath>

  StudioPalette::instance()->getChildren(childrenPath, folderPath);

  int currentChildCount = item->childCount();

  std::vector<qtreewidgetitem *=""> currentChildren;</qtreewidgetitem>

  int i;

  for (i = 0; i < currentChildCount; i++)

    currentChildren.push_back(item->child(i));

  int childrenPathCount = childrenPath.size();

  int itemIndex         = 0;

  int pathIndex         = 0;

  while (itemIndex < currentChildCount || pathIndex < childrenPathCount) {

    TFilePath path =

        (pathIndex < childrenPathCount) ? childrenPath[pathIndex] : TFilePath();

    QTreeWidgetItem *currentItem =

        (itemIndex < currentChildCount) ? currentChildren[itemIndex] : 0;

    TFilePath currentItemPath = getItemPath(currentItem);

    if (path == currentItemPath) {

      itemIndex++;

      pathIndex++;

    } else if ((!path.isEmpty() && path < currentItemPath) ||

               currentItemPath.isEmpty()) {

      currentItem = createItem(path);

      item->insertChild(itemIndex, currentItem);

      itemIndex++;

      pathIndex++;

    } else {

      assert(currentItemPath < path || path.isEmpty());

      assert(currentItem);

      item->removeChild(currentItem);

      itemIndex++;

    }

  }

  m_openedItems.insert(item);

}

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

void StudioPaletteTreeViewer::resetProjectPaletteFolder() {

  int projectPaletteIndex = 1;

  TFilePath projectPalettePath =

      StudioPalette::instance()->getProjectPalettesRoot();

  // Prendo l'item del project palette.

  QTreeWidgetItem *projectPaletteItem = topLevelItem(projectPaletteIndex);

  if (projectPaletteItem) {

    // Se il path dell'item e' uguale a quello del project palette corrente

    // ritorno.

    if (getItemPath(projectPaletteItem) == projectPalettePath) return;

    // Altrimenti lo rimuovo.

    removeItemWidget(projectPaletteItem, 0);

    delete projectPaletteItem;

    // clear the item list in order to search the folder from scratch

    m_openedItems.clear();

    // Toonz Palette is not changed, so resurrect the ToonzPaletteRoot

    m_openedItems.insert(topLevelItem(0));

  }

  if (!TSystem::doesExistFileOrLevel(projectPalettePath)) return;

  // Creo il nuovo item con il nuovo project folder e lo inserisco nell'albero.

  // Items in the ProjectPaletteRoot are refreshed here. Stored in openedItems

  // as well.

  QTreeWidgetItem *newProjectPaletteItem = createRootItem(projectPalettePath);

  insertTopLevelItem(projectPaletteIndex, newProjectPaletteItem);

  setCurrentItem(0);

}

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

void StudioPaletteTreeViewer::onItemClicked(QTreeWidgetItem *item, int column) {

  if (currentItem() && m_studioPaletteHandle && m_currentPalette.getPointer()) {

    // if(m_studioPaletteHandle->getPalette() != m_currentPalette.getPointer())

    {

      m_studioPaletteHandle->setPalette(m_currentPalette.getPointer());

      m_studioPaletteHandle->notifyPaletteSwitched();

      StudioPaletteCmd::updateAllLinkedStyles(m_levelPaletteHandle,

                                              m_xsheetHandle);

    }

  }

}

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

void StudioPaletteTreeViewer::onItemChanged(QTreeWidgetItem *item, int column) {

  if (item != currentItem() || isRootItem(item)) return;

  wstring name      = item->text(column).toStdWString();

  TFilePath oldPath = getCurrentFolderPath();

  if (oldPath.isEmpty() || name.empty() || oldPath.getWideName() == name)

    return;

  TFilePath newPath(oldPath.getParentDir() +

                    TFilePath(name + ::to_wstring(oldPath.getDottedType())));

  try {

    StudioPaletteCmd::movePalette(newPath, oldPath);

  } catch (TException &e) {

    error(QString(::to_string(e.getMessage()).c_str()));

    item->setText(column, QString::fromStdWString(oldPath.getWideName()));

  } catch (...) {

    error("Can't rename file");

    item->setText(column, QString::fromStdWString(oldPath.getWideName()));

  }

  refreshItem(getItem(oldPath.getParentDir()));

  setCurrentItem(getItem(newPath));

}

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

/*! Called when the current palette is switched

*/

void StudioPaletteTreeViewer::onCurrentItemChanged(QTreeWidgetItem *current,

                                                   QTreeWidgetItem *previous) {

  TFilePath oldPath = getItemPath(previous);

  TFilePath newPath = getCurrentFolderPath();

  if (!m_studioPaletteHandle) return;

  if (m_currentPalette.getPointer() && m_currentPalette->getDirtyFlag()) {

    TFilePath oldPath = StudioPalette::instance()->getPalettePath(

        m_currentPalette->getGlobalName());

    if (oldPath == newPath) return;

    wstring gname = m_currentPalette->getGlobalName();

    QString question;

    question = "The current palette " +

               QString::fromStdWString(oldPath.getWideString()) +

               " \nin the studio palette has been modified. Do you want to "

               "save your changes?";

    int ret = DVGui::MsgBox(question, QObject::tr("Save"),

                            QObject::tr("Discard"), QObject::tr("Cancel"), 0);

    if (ret == 3) {

      setCurrentItem(getItem(oldPath));

      return;

    }

    if (ret == 1) {

      // If the palette is level palette (i.e. NOT stdio palette), just

      // overwrite it

      if (gname.empty())

        StudioPalette::instance()->save(oldPath, m_currentPalette.getPointer());

      else

        StudioPalette::instance()->setPalette(

            oldPath, m_currentPalette.getPointer(), false);

    }

    m_currentPalette->setDirtyFlag(false);

  }

  // load palette here

  m_currentPalette = StudioPalette::instance()->getPalette(newPath, false);

  m_studioPaletteHandle->setPalette(m_currentPalette.getPointer());

  m_studioPaletteHandle->notifyPaletteSwitched();

}

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

void StudioPaletteTreeViewer::addNewPalette() {

  if (!currentItem()) {

    error("Error: No folder selected.");

    return;

  }

  TFilePath newPath;

  try {

    newPath = StudioPaletteCmd::createPalette(getCurrentFolderPath(), "", 0);

  } catch (TException &e) {

    error("Can't create palette: " +

          QString(::to_string(e.getMessage()).c_str()));

  } catch (...) {

    error("Can't create palette");

  }

  refreshItem(currentItem());

  setCurrentItem(getItem(newPath));

}

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

void StudioPaletteTreeViewer::addNewFolder() {

  if (!currentItem()) {

    error("Error: No folder selected.");

    return;

  }

  TFilePath newPath;

  try {

    newPath = StudioPaletteCmd::addFolder(getCurrentFolderPath());

  } catch (TException &e) {

    error("Can't create palette folder: " +

          QString(::to_string(e.getMessage()).c_str()));

  } catch (...) {

    error("Can't create palette folder");

  }

  refreshItem(currentItem());

  setCurrentItem(getItem(newPath));

}

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

/*! Convert level palette to studio palette.

*/

void StudioPaletteTreeViewer::convertToStudioPalette() {

  TFilePath path               = getItemPath(currentItem());

  StudioPalette *studioPalette = StudioPalette::instance();

  if (studioPalette->isPalette(path)) {

    TPalette *palette = studioPalette->getPalette(path);

    if (!palette) {

      error("Can't touch palette");

      return;

    }

    if (m_currentPalette->getPaletteName() != palette->getPaletteName()) {

      error("Can't touch palette");

      return;

    }

    QString question;

    question = QString::fromStdWString(

        L"Convert " + path.getWideString() +

        L" to Studio Palette and Overwrite. \nAre you sure ?");

    int ret = DVGui::MsgBox(question, QObject::tr("Yes"), QObject::tr("No"));

    if (ret == 0 || ret == 2) return;

    // apply global name

    time_t ltime;

    time(<ime);

    wstring gname = std::to_wstring(ltime) + L"_" + std::to_wstring(rand());

    m_currentPalette->setGlobalName(gname);

    studioPalette->setStylesGlobalNames(m_currentPalette.getPointer());

    studioPalette->save(path, m_currentPalette.getPointer());

    m_currentPalette->setDirtyFlag(false);

    currentItem()->setIcon(0, m_studioPaletteIcon);

  } else

    error("Can't find palette");

}

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

void StudioPaletteTreeViewer::deleteItem(QTreeWidgetItem *item) {

  QTreeWidgetItem *parent = item->parent();

  if (!parent) return;

  if (item->childCount() > 0) {

    QString question;

    question = tr("This folder is not empty. Delete anyway?");

    int ret  = DVGui::MsgBox(question, QObject::tr("Yes"), QObject::tr("No"));

    if (ret == 0 || ret == 2) return;

  }

  TFilePath path               = getItemPath(item);

  StudioPalette *studioPalette = StudioPalette::instance();

  if (studioPalette->isFolder(path)) {

    try {

      StudioPaletteCmd::deleteFolder(path);

    } catch (TException &e) {

      error("Can't delete folder: " +

            QString(::to_string(e.getMessage()).c_str()));

    } catch (...) {

      error("Can't delete folder");

    }

  } else {

    assert(studioPalette->isPalette(path));

    try {

      StudioPaletteCmd::deletePalette(path);

    } catch (TException &e) {

      error("Can't delete palette: " +

            QString(::to_string(e.getMessage()).c_str()));

    } catch (...) {

      error("Can't delete palette");

    }

  }

  refreshItem(parent);

}

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

void StudioPaletteTreeViewer::deleteItems() {

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  int count                      = items.size();

  if (count == 0) {

    error("Nothing to delete");

    return;

  }

  int i;

  TUndoManager::manager()->beginBlock();

  for (i = 0; i < count; i++) deleteItem(items[i]);

  TUndoManager::manager()->endBlock();

}

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

void StudioPaletteTreeViewer::searchForPalette() {

  m_palettesScanPopup->setCurrentFolder(getCurrentFolderPath());

  int ret = m_palettesScanPopup->exec();

  if (ret == QDialog::Accepted) refresh();

}

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

class InvalidateIconsUndo final : public TUndo {

  TPaletteP m_targetPalette, m_oldPalette, m_newPalette;

  TXshLevelHandle *m_levelHandle;

public:

  InvalidateIconsUndo(TXshLevelHandle *levelHandle)

      : m_levelHandle(levelHandle) {}

  void undo() const override {

    TXshLevel *level = m_levelHandle->getLevel();

    if (level) {

      std::vector<tframeid> fids;</tframeid>

      level->getFids(fids);

      invalidateIcons(level, fids);

    }

  }

  void redo() const override { undo(); }

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

};

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

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

class AdjustPaletteDialog final : public DVGui::Dialog {

private:

  IntField *m_tolerance;

public:

  int getTolerance() { return m_tolerance->getValue(); }

  AdjustPaletteDialog()

      : Dialog(0, true, true, "Adjust Current Level to This Palette") {

    setWindowTitle(tr("Adjust Current Level to This Palette"));

    beginVLayout();

    m_tolerance = new IntField(this);

    m_tolerance->setRange(0, 255);

    m_tolerance->setValue(0);

    addWidget(tr("Tolerance"), m_tolerance);

    endVLayout();

    QPushButton *okBtn = new QPushButton(tr("Apply"), this);

    okBtn->setDefault(true);

    QPushButton *cancelBtn = new QPushButton(tr("Cancel"), this);

    bool ret = connect(okBtn, SIGNAL(clicked()), this, SLOT(accept()));

    ret = ret && connect(cancelBtn, SIGNAL(clicked()), this, SLOT(reject()));

    assert(ret);

    addButtonBarWidget(okBtn, cancelBtn);

  }

};

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

void StudioPaletteTreeViewer::loadInCurrentPaletteAndAdaptLevel() {

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  assert(items.size() == 1);

  TPalette *palette = m_levelPaletteHandle->getPalette();

  if (!palette) return;

  TPalette *newPalette =

      StudioPalette::instance()->getPalette(getItemPath(items[0]), true);

  if (!newPalette) return;

  AdjustPaletteDialog apd;

  if (apd.exec() != QDialog::Accepted) return;

  /* awful patch: since in StudioPaletteCmd(defined in toonzlib) I cannot use

the invalidateIcons(defined in toonzqt)

i do invalidate icons from here using a "fake TUndo", named InvalidateIconsUndo.

And, since I need to refresh icons at the end of the processing, i have to put

that fake undo twice, one before and one after.

this way , when the user do either an undo or a redo operation, I am ensured

that the last operation is the icon refresh...

*/

  TUndoManager::manager()->beginBlock();

  TUndoManager::manager()->add(new InvalidateIconsUndo(m_currentLevelHandle));

  StudioPaletteCmd::loadIntoCurrentPalette(m_levelPaletteHandle, newPalette,

                                           m_currentLevelHandle,

                                           apd.getTolerance());

  TUndoManager::manager()->add(new InvalidateIconsUndo(m_currentLevelHandle));

  TUndoManager::manager()->endBlock();

  InvalidateIconsUndo(m_currentLevelHandle).undo();

}

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

void StudioPaletteTreeViewer::loadInCurrentPalette() {

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  int count                      = items.size();

  if (count == 0) return;

  TPalette *palette = m_levelPaletteHandle->getPalette();

  if (!palette) return;

  if (palette->isLocked()) {

    DVGui::warning("Palette is Locked!");

    return;

  }

  TPalette *newPalette =

      StudioPalette::instance()->getPalette(getItemPath(items[0]), false);

  if (!newPalette) return;

  if (m_xsheetHandle) {

    int ret = DVGui::eraseStylesInDemand(palette, m_xsheetHandle, newPalette);

    if (ret == 0) return;

  }

  StudioPaletteCmd::loadIntoCurrentPalette(m_levelPaletteHandle, newPalette);

  m_currentLevelHandle->notifyLevelChange();

  TXshLevel *level = m_currentLevelHandle->getLevel();

  if (level) {

    std::vector<tframeid> fids;</tframeid>

    level->getFids(fids);

    invalidateIcons(level, fids);

  }

  int i;

  for (i = 1; i < count; i++) {

    TFilePath path = getItemPath(items[i]);

    StudioPaletteCmd::mergeIntoCurrentPalette(m_levelPaletteHandle, path);

  }

  // in order to update the title bar of palette viewer

  m_levelPaletteHandle->getPalette()->setDirtyFlag(true);

  m_levelPaletteHandle->notifyPaletteChanged();

}

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

void StudioPaletteTreeViewer::replaceCurrentPalette() {

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  int count                      = items.size();

  if (count == 0) return;

  // exec confirmation dialog

  TPalette *current = m_levelPaletteHandle->getPalette();

  if (!current) return;

  QString label;

  if (count != 1)  // replacing to multiple palettes

    label = QString::fromStdWString(

        L"Replacing all selected palettes with the palette \"" +

        current->getPaletteName() + L"\". \nAre you sure ?");

  else {

    TPalette *dstPalette =

        StudioPalette::instance()->getPalette(getItemPath(items[0]));

    if (!dstPalette) return;

    label = QString::fromStdWString(

        L"Replacing the palette \"" + dstPalette->getPaletteName() +

        L"\" with the palette \"" + current->getPaletteName() +

        L"\". \nAre you sure ?");

  }

  int ret =

      DVGui::MsgBox(label, QObject::tr("Replace"), QObject::tr("Cancel"), 1);

  if (ret == 0 || ret == 2) return;

  TUndoManager::manager()->beginBlock();

  int i;

  for (i = 0; i < count; i++)

    StudioPaletteCmd::replaceWithCurrentPalette(

        m_levelPaletteHandle, m_studioPaletteHandle, getItemPath(items[i]));

  TUndoManager::manager()->endBlock();

  if (m_currentPalette) m_currentPalette->setDirtyFlag(false);

  // in order to update display

  onCurrentItemChanged(currentItem(), currentItem());

}

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

void StudioPaletteTreeViewer::mergeToCurrentPalette() {

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  int count                      = items.size();

  if (count == 0) return;

  TUndoManager::manager()->beginBlock();

  int i;

  for (i = 0; i < count; i++)

    StudioPaletteCmd::mergeIntoCurrentPalette(m_levelPaletteHandle,

                                              getItemPath(items[i]));

  TUndoManager::manager()->endBlock();

}

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

void StudioPaletteTreeViewer::paintEvent(QPaintEvent *event) {

  QTreeWidget::paintEvent(event);

  QPainter p(viewport());

  if (m_dropItem) {

    p.setPen(QColor(50, 105, 200));

    p.drawRect(visualItemRect(m_dropItem));

  }

}

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

void StudioPaletteTreeViewer::contextMenuEvent(QContextMenuEvent *event) {

  TFilePath path = getCurrentFolderPath();

  StudioPalette *studioPalette = StudioPalette::instance();

  // Menu' per la selezione singola

  QList<qtreewidgetitem *=""> items = selectedItems();</qtreewidgetitem>

  int count                      = items.size();

  if (count == 1) {

    // Verify if click position is in a row containing an item.

    QRect rect = visualItemRect(currentItem());

    if (!QRect(0, rect.y(), width(), rect.height()).contains(event->pos()))

      return;

    bool isFolder = (studioPalette->isFolder(path));

    QMenu menu(this);

    if (isFolder) {

      createMenuAction(menu, "", tr("New Palette"), "addNewPalette()");

      createMenuAction(menu, "", tr("New Folder"), "addNewFolder()");

    }

    if (studioPalette->isFolder(path) &&

        studioPalette->getLevelPalettesRoot() != path &&