#include "MainWindow.hpp"

#include <QClipboard>
#include <QFileDialog>
#include <QInputDialog>
#include <QLineEdit>
#include <QMessageBox>
#include <QMouseEvent>
#include <QProgressDialog>
#include <QtSvg/QtSvg>
#include <QUndoStack>

#include "ADSREditor.hpp"
#include "Common.hpp"
#include "CurveEditor.hpp"
#include "KeymapEditor.hpp"
#include "LayersEditor.hpp"
#include "MIDIReader.hpp"
#include "NewSoundMacroDialog.hpp"
#include "SampleEditor.hpp"
#include "SongGroupEditor.hpp"
#include "SoundGroupEditor.hpp"
#include "SoundGroupEditor.hpp"
#include "SoundMacroEditor.hpp"
#include "StudioSetupWidget.hpp"

#include <amuse/BooBackend.hpp>
#include <amuse/ContainerRegistry.hpp>
#include <amuse/Engine.hpp>
#include <boo/audiodev/IAudioVoiceEngine.hpp>

MainWindow::MainWindow(QWidget* parent)
: QMainWindow(parent)
, m_navIt(m_navList.begin())
, m_treeDelegate(*this, this)
, m_mainMessenger(this)
, m_openDirectoryDialog(this)
, m_openFileDialog(this)
, m_newFileDialog(this)
, m_undoStack(new QUndoStack(this))
, m_backgroundThread(this) {
  m_backgroundThread.start();

  m_newFileDialog.setAcceptMode(QFileDialog::AcceptSave);
  m_newFileDialog.setFileMode(QFileDialog::AnyFile);
  m_newFileDialog.setOption(QFileDialog::ShowDirsOnly, false);

  m_openDirectoryDialog.setAcceptMode(QFileDialog::AcceptOpen);
  m_openDirectoryDialog.setFileMode(QFileDialog::Directory);
  m_openDirectoryDialog.setOption(QFileDialog::ShowDirsOnly, true);

  m_openFileDialog.setAcceptMode(QFileDialog::AcceptOpen);
  m_openFileDialog.setFileMode(QFileDialog::ExistingFile);
  m_openFileDialog.setOption(QFileDialog::ShowDirsOnly, false);

  m_ui.setupUi(this);
  m_ui.splitter->setCollapsible(1, false);
  QPalette palette = m_ui.projectOutlineFilter->palette();
  palette.setColor(QPalette::Base, palette.color(QPalette::Window));
  m_ui.projectOutlineFilter->setPalette(palette);
  m_ui.projectOutline->setItemDelegate(&m_treeDelegate);
  connect(m_ui.projectOutline, &QTreeView::activated, this, &MainWindow::outlineItemActivated);
  m_goBack = new QAction(m_ui.backButton->icon(), tr("Go Back"), this);
  m_goBack->setEnabled(false);
  connect(m_goBack, &QAction::triggered, this, &MainWindow::goBack);
  m_goBack->setShortcut(QKeySequence::Back);
  m_ui.backButton->setDefaultAction(m_goBack);
  m_goForward = new QAction(m_ui.forwardButton->icon(), tr("Go Forward"), this);
  m_goForward->setEnabled(false);
  connect(m_goForward, &QAction::triggered, this, &MainWindow::goForward);
  m_goForward->setShortcut(QKeySequence::Forward);
  m_ui.forwardButton->setDefaultAction(m_goForward);

  connectMessenger(&m_mainMessenger, Qt::DirectConnection);

  m_ui.statusbar->connectKillClicked(this, &MainWindow::killSounds);
  m_ui.statusbar->connectFXPressed(this, &MainWindow::fxPressed);
  m_ui.statusbar->setVolumeValue(70);
  m_ui.statusbar->connectVolumeSlider(this, &MainWindow::volumeChanged);
  m_ui.statusbar->connectASlider(this, &MainWindow::auxAChanged);
  m_ui.statusbar->connectBSlider(this, &MainWindow::auxBChanged);

  m_ui.keyboardContents->setStatusFocus(new StatusBarFocus(m_ui.statusbar));
  m_ui.velocitySlider->setStatusFocus(new StatusBarFocus(m_ui.statusbar));
  m_ui.modulationSlider->setStatusFocus(new StatusBarFocus(m_ui.statusbar));
  m_ui.pitchSlider->setStatusFocus(new StatusBarFocus(m_ui.statusbar));
  connect(m_ui.keyboardContents, &KeyboardWidget::notePressed, this, &MainWindow::notePressed);
  connect(m_ui.keyboardContents, &KeyboardWidget::noteReleased, this, &MainWindow::noteReleased);
  connect(m_ui.velocitySlider, qOverload<int>(&VelocitySlider::valueChanged), this, &MainWindow::velocityChanged);
  connect(m_ui.modulationSlider, qOverload<int>(&ModulationSlider::valueChanged), this, &MainWindow::modulationChanged);
  connect(m_ui.pitchSlider, qOverload<int>(&PitchSlider::valueChanged), this, &MainWindow::pitchChanged);

  m_ui.actionNew_Project->setShortcut(QKeySequence::New);
  connect(m_ui.actionNew_Project, &QAction::triggered, this, &MainWindow::newAction);
  m_ui.actionOpen_Project->setShortcut(QKeySequence::Open);
  connect(m_ui.actionOpen_Project, &QAction::triggered, this, &MainWindow::openAction);
  m_ui.actionSave_Project->setShortcut(QKeySequence::Save);
  connect(m_ui.actionSave_Project, &QAction::triggered, this, &MainWindow::saveAction);
  connect(m_ui.actionRevert_Project, &QAction::triggered, this, &MainWindow::revertAction);
  connect(m_ui.actionReload_Sample_Data, &QAction::triggered, this, &MainWindow::reloadSampleDataAction);
  connect(m_ui.actionImport_Groups, &QAction::triggered, this, &MainWindow::importAction);
  connect(m_ui.actionImport_Songs, &QAction::triggered, this, &MainWindow::importSongsAction);
  connect(m_ui.actionExport_GameCube_Groups, &QAction::triggered, this, &MainWindow::exportAction);
  connect(m_ui.actionImport_C_Headers, &QAction::triggered, this, &MainWindow::importHeadersAction);
  connect(m_ui.actionExport_C_Headers, &QAction::triggered, this, &MainWindow::exportHeadersAction);
  m_ui.actionQuit->setShortcut(QKeySequence::Quit);
  connect(m_ui.actionQuit, &QAction::triggered, this, &MainWindow::close);

  for (int i = 0; i < MaxRecentFiles; ++i) {
    m_recentFileActs[i] = new QAction(this);
    m_recentFileActs[i]->setVisible(false);
    m_ui.menuRecent_Projects->addAction(m_recentFileActs[i]);
    connect(m_recentFileActs[i], &QAction::triggered, this, &MainWindow::openRecentFileAction);
  }
  m_ui.menuRecent_Projects->addSeparator();
  m_clearRecentFileAct = new QAction(tr("Clear Recent Projects"), this);
  connect(m_clearRecentFileAct, &QAction::triggered, this, &MainWindow::clearRecentFilesAction);
  m_ui.menuRecent_Projects->addAction(m_clearRecentFileAct);

  updateRecentFileActions();

  connect(m_undoStack, &QUndoStack::cleanChanged, this, &MainWindow::cleanChanged);
  QAction* undoAction = m_undoStack->createUndoAction(this);
  undoAction->setShortcut(QKeySequence::Undo);
  undoAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-undo")));
  m_ui.menuEdit->insertAction(m_ui.actionCut, undoAction);
  QAction* redoAction = m_undoStack->createRedoAction(this);
  redoAction->setShortcut(QKeySequence::Redo);
  redoAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-redo")));
  m_ui.menuEdit->insertAction(m_ui.actionCut, redoAction);
  m_ui.menuEdit->insertSeparator(m_ui.actionCut);
  m_ui.actionCut->setShortcut(QKeySequence::Cut);
  m_ui.actionCopy->setShortcut(QKeySequence::Copy);
  m_ui.actionPaste->setShortcut(QKeySequence::Paste);
  m_ui.actionDelete->setShortcut(QKeySequence::Delete);
  onFocusChanged(nullptr, this);

  connect(m_ui.actionAbout_Amuse, &QAction::triggered, this, &MainWindow::aboutAmuseAction);
  connect(m_ui.actionAbout_Qt, &QAction::triggered, this, &MainWindow::aboutQtAction);

  QGridLayout* faceLayout = new QGridLayout;
  QSvgWidget* faceSvg = new QSvgWidget(QStringLiteral(":/bg/FaceGrey.svg"));
  faceSvg->setGeometry(0, 0, 256, 256);
  faceSvg->setSizePolicy(QSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed));
  faceLayout->addWidget(faceSvg);
  m_faceSvg = new QWidget;
  m_faceSvg->setLayout(faceLayout);
  m_ui.editorContents->addWidget(m_faceSvg);
  m_songGroupEditor = new SongGroupEditor;
  m_ui.editorContents->addWidget(m_songGroupEditor);
  m_soundGroupEditor = new SoundGroupEditor;
  m_ui.editorContents->addWidget(m_soundGroupEditor);
  m_soundMacroEditor = new SoundMacroEditor;
  m_ui.editorContents->addWidget(m_soundMacroEditor);
  m_adsrEditor = new ADSREditor;
  m_ui.editorContents->addWidget(m_adsrEditor);
  m_curveEditor = new CurveEditor;
  m_ui.editorContents->addWidget(m_curveEditor);
  m_keymapEditor = new KeymapEditor;
  m_ui.editorContents->addWidget(m_keymapEditor);
  m_layersEditor = new LayersEditor;
  m_ui.editorContents->addWidget(m_layersEditor);
  m_sampleEditor = new SampleEditor;
  m_ui.editorContents->addWidget(m_sampleEditor);
  m_ui.editorContents->setCurrentWidget(m_faceSvg);

  m_studioSetup = new StudioSetupWidget(this);
  connect(m_studioSetup, &StudioSetupWidget::hidden, this, &MainWindow::studioSetupHidden);
  connect(m_studioSetup, &StudioSetupWidget::shown, this, &MainWindow::studioSetupShown);

  connect(m_ui.actionNew_Subproject, &QAction::triggered, this, &MainWindow::newSubprojectAction);
  connect(m_ui.actionNew_SFX_Group, &QAction::triggered, this, &MainWindow::newSFXGroupAction);
  connect(m_ui.actionNew_Song_Group, &QAction::triggered, this, &MainWindow::newSongGroupAction);
  connect(m_ui.actionNew_Sound_Macro, &QAction::triggered, this, &MainWindow::newSoundMacroAction);
  connect(m_ui.actionNew_ADSR, &QAction::triggered, this, &MainWindow::newADSRAction);
  connect(m_ui.actionNew_Curve, &QAction::triggered, this, &MainWindow::newCurveAction);
  connect(m_ui.actionNew_Keymap, &QAction::triggered, this, &MainWindow::newKeymapAction);
  connect(m_ui.actionNew_Layers, &QAction::triggered, this, &MainWindow::newLayersAction);

  connect(m_ui.menuAudio, &QMenu::aboutToShow, this, &MainWindow::aboutToShowAudioIOMenu);
  connect(m_ui.menuMIDI, &QMenu::aboutToShow, this, &MainWindow::aboutToShowMIDIIOMenu);

  connect(qApp, &QApplication::focusChanged, this, &MainWindow::onFocusChanged);
  connect(QGuiApplication::clipboard(), &QClipboard::dataChanged, this, &MainWindow::onClipboardChanged);

  m_voxEngine = boo::NewAudioVoiceEngine();
  m_voxAllocator = std::make_unique<VoiceAllocator>(*m_voxEngine);
  m_engine = std::make_unique<amuse::Engine>(*m_voxAllocator);
  m_engine->setVolume(0.7f);
  m_studioSetup->loadData(m_engine->getDefaultStudio().get());

  m_ctrlVals[7] = 127;
  m_ctrlVals[10] = 64;

  startTimer(16);
}

MainWindow::~MainWindow() {
  m_backgroundThread.quit();
  m_backgroundThread.wait();
  fmt::print(fmt("IM DYING\n"));
}

void MainWindow::connectMessenger(UIMessenger* messenger, Qt::ConnectionType type) {
  connect(messenger,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &UIMessenger::information),
          this,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &MainWindow::msgInformation),
          type);
  connect(messenger,
          qOverload<const QString&, const QString&, const QString&, const QString&, const QString&, int, int>(
              &UIMessenger::question),
          this,
          qOverload<const QString&, const QString&, const QString&, const QString&, const QString&, int, int>(
              &MainWindow::msgQuestion),
          type);
  connect(messenger,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &UIMessenger::question),
          this,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &MainWindow::msgQuestion),
          type);
  connect(messenger,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &UIMessenger::warning),
          this,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &MainWindow::msgWarning),
          type);
  connect(messenger,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &UIMessenger::critical),
          this,
          qOverload<const QString&, const QString&, QMessageBox::StandardButtons, QMessageBox::StandardButton>(
              &MainWindow::msgCritical),
          type);
}

void MainWindow::updateWindowTitle() {
  if (!m_projectModel) {
    setWindowTitle(tr("Amuse[*]"));
    return;
  }

  QDir dir(m_projectModel->path());
  if (EditorWidget* w = getEditorWidget()) {
    ProjectModel::BasePoolObjectNode* objNode = static_cast<ProjectModel::BasePoolObjectNode*>(w->currentNode());
    setWindowTitle(tr("%1/%2/%3[*] - Amuse")
                       .arg(dir.dirName())
                       .arg(m_projectModel->getGroupNode(objNode)->text())
                       .arg(objNode->text()));
    return;
  }

  setWindowTitle(tr("%1[*] - Amuse").arg(dir.dirName()));
}

void MainWindow::updateRecentFileActions() {
  const QSettings settings;
  const QStringList files = settings.value(QStringLiteral("recentFileList")).toStringList();
  const int numRecentFiles = std::min(files.size(), int(MaxRecentFiles));

  for (int i = 0; i < numRecentFiles; ++i) {
    const QString text = QStringLiteral("&%1 %2").arg(i + 1).arg(QDir(files[i]).dirName());
    m_recentFileActs[i]->setText(text);
    m_recentFileActs[i]->setData(files[i]);
    m_recentFileActs[i]->setToolTip(files[i]);
    m_recentFileActs[i]->setVisible(true);
  }
  for (int j = numRecentFiles; j < MaxRecentFiles; ++j)
    m_recentFileActs[j]->setVisible(false);

  m_ui.menuRecent_Projects->setEnabled(numRecentFiles > 0);
}

bool MainWindow::setProjectPath(const QString& path) {
  QDir dir(path);
  if (dir.path().isEmpty() || dir.path() == QStringLiteral(".") || dir.path() == QStringLiteral("..")) {
    QString msg = QString(tr("The directory at '%1' must not be empty.")).arg(path);
    m_mainMessenger.critical(tr("Directory empty"), msg);
    return false;
  } else if (!dir.exists()) {
    QString msg = QString(tr("The directory at '%1' must exist for the Amuse editor.")).arg(path);
    m_mainMessenger.critical(tr("Directory does not exist"), msg);
    return false;
  }
  QString testWritePath = dir.filePath(tr("__amuse_test__"));
  QFile testWriteFile(testWritePath);
  if (!testWriteFile.open(QFile::ReadWrite)) {

    QString msg = QString(tr("The directory at '%1' must be writable for the Amuse editor: %2"))
                      .arg(path)
                      .arg(testWriteFile.errorString());
    m_mainMessenger.critical(tr("Unable to write to directory"), msg);
    return false;
  }
  testWriteFile.remove();

  closeEditor();
  if (m_projectModel)
    m_projectModel->deleteLater();
  m_projectModel = new ProjectModel(path, this);
  m_ui.projectOutlineFilter->clear();
  connect(m_ui.projectOutlineFilter, &QLineEdit::textChanged, m_projectModel->getOutlineProxy(),
          &OutlineFilterProxyModel::setFilterRegExp);
  m_ui.projectOutline->setModel(m_projectModel->getOutlineProxy());
  connect(m_ui.projectOutline->selectionModel(), &QItemSelectionModel::selectionChanged, this,
          &MainWindow::onOutlineSelectionChanged);
  m_openDirectoryDialog.setDirectory(path);
  m_openFileDialog.setDirectory(path);
  m_newFileDialog.setDirectory(path);
  m_ui.actionSave_Project->setEnabled(true);
  m_ui.actionRevert_Project->setEnabled(true);
  m_ui.actionReload_Sample_Data->setEnabled(true);
  m_ui.actionImport_Songs->setEnabled(true);
  m_ui.actionExport_GameCube_Groups->setEnabled(true);
  m_ui.actionImport_C_Headers->setEnabled(true);
  m_ui.actionExport_C_Headers->setEnabled(true);
  m_ui.actionNew_Subproject->setEnabled(true);
  setWindowFilePath(path);
  updateWindowTitle();
  updateFocus();
  m_undoStack->clear();
  m_navList.clear();
  m_navIt = m_navList.begin();

  updateNavigationButtons();

  const QString key = QStringLiteral("recentFileList");
  QSettings settings;
  QStringList files = settings.value(key).toStringList();
  files.removeAll(dir.path());
  files.prepend(dir.path());
  while (files.size() > MaxRecentFiles) {
    files.removeLast();
  }
  settings.setValue(key, files);
  settings.sync();

  updateRecentFileActions();

  return true;
}

void MainWindow::refreshAudioIO() {
  QList<QAction*> audioActions = m_ui.menuAudio->actions();
  if (audioActions.size() > 2)
    for (auto it = audioActions.begin() + 2; it != audioActions.end(); ++it)
      m_ui.menuAudio->removeAction(*it);

  bool addedDev = false;
  if (m_voxEngine) {
    std::string curOut = m_voxEngine->getCurrentAudioOutput();
    for (const auto& dev : m_voxEngine->enumerateAudioOutputs()) {
      QAction* act = m_ui.menuAudio->addAction(QString::fromStdString(dev.second));
      act->setCheckable(true);
      act->setData(QString::fromStdString(dev.first));
      if (curOut == dev.first)
        act->setChecked(true);
      connect(act, &QAction::triggered, this, &MainWindow::setAudioIO);
      addedDev = true;
    }
  }

  if (!addedDev)
    m_ui.menuAudio->addAction(tr("No Audio Devices Found"))->setEnabled(false);
}

void MainWindow::refreshMIDIIO() {
  QList<QAction*> midiActions = m_ui.menuMIDI->actions();
  if (midiActions.size() > 2)
    for (auto it = midiActions.begin() + 2; it != midiActions.end(); ++it)
      m_ui.menuMIDI->removeAction(*it);

  bool addedDev = false;
  if (m_voxEngine) {
    if (m_voxEngine->supportsVirtualMIDIIn()) {
      QAction* act = m_ui.menuMIDI->addAction(tr("Virtual MIDI-In"));
      act->setCheckable(true);
      act->setData(QStringLiteral("<amuse-virtual-in>"));
      act->setChecked(static_cast<MIDIReader*>(m_engine->getMIDIReader())->hasVirtualIn());
      connect(act, &QAction::triggered, this, &MainWindow::setMIDIIO);
      addedDev = true;
    }
    for (const auto& dev : m_voxEngine->enumerateMIDIInputs()) {
      QAction* act = m_ui.menuMIDI->addAction(QString::fromStdString(dev.second));
      act->setCheckable(true);
      act->setData(QString::fromStdString(dev.first));
      act->setChecked(static_cast<MIDIReader*>(m_engine->getMIDIReader())->hasMIDIIn(dev.first.c_str()));
      connect(act, &QAction::triggered, this, &MainWindow::setMIDIIO);
      addedDev = true;
    }
  }

  if (!addedDev)
    m_ui.menuMIDI->addAction(tr("No MIDI Devices Found"))->setEnabled(false);
}

void MainWindow::timerEvent(QTimerEvent* ev) {
  if (m_voxEngine && m_engine) {
    m_voxEngine->pumpAndMixVoices();

    m_peakVoices = std::max(int(m_engine->getNumTotalActiveVoices()), m_peakVoices);
    if (!(m_timerFireCount % 10)) {
      /* Rate limit voice counter */
      m_ui.statusbar->setVoiceCount(m_peakVoices);
      m_peakVoices = 0;
    }
    if (m_engine->getActiveVoices().empty() && m_uiDisabled) {
      m_ui.projectOutline->setEnabled(true);
      m_ui.backButton->setEnabled(true);
      m_ui.forwardButton->setEnabled(true);
      if (EditorWidget* w = getEditorWidget())
        w->setEditorEnabled(true);
      m_ui.menubar->setEnabled(true);
      m_uiDisabled = false;
    } else if (!m_engine->getActiveVoices().empty() && !m_uiDisabled) {
      m_ui.projectOutline->setEnabled(false);
      m_ui.backButton->setEnabled(false);
      m_ui.forwardButton->setEnabled(false);
      if (EditorWidget* w = getEditorWidget())
        w->setEditorEnabled(false);
      m_ui.menubar->setEnabled(false);
      m_uiDisabled = true;
    }

    if (SampleEditor* sampleEditor = qobject_cast<SampleEditor*>(m_ui.editorContents->currentWidget())) {
      const auto& activeVoxs = m_engine->getActiveVoices();
      if (activeVoxs.size() && activeVoxs.back()->state() != amuse::VoiceState::Dead)
        sampleEditor->setSamplePos(activeVoxs.back()->getSamplePos());
      else
        sampleEditor->setSamplePos(-1);
    }

    QTableView* songTable = m_songGroupEditor->getSetupListView();
    for (int i = 0; i < songTable->model()->rowCount(); ++i)
      if (MIDIPlayerWidget* player =
              qobject_cast<MIDIPlayerWidget*>(songTable->indexWidget(songTable->model()->index(i, 1))))
        if (player->sequencer() && player->sequencer()->state() != amuse::SequencerState::Playing)
          player->stopped();

    QTableView* sfxTable = m_soundGroupEditor->getSFXListView();
    for (int i = 0; i < sfxTable->model()->rowCount(); ++i)
      if (SFXPlayerWidget* player =
              qobject_cast<SFXPlayerWidget*>(sfxTable->indexWidget(sfxTable->model()->index(i, 1))))
        if (player->voice() && player->voice()->state() != amuse::VoiceState::Playing)
          player->stopped();

    ++m_timerFireCount;
  }
}

void MainWindow::setSustain(bool sustain) {
  if (sustain && m_ctrlVals[64] < 0x40) {
    m_ui.statusbar->setNormalMessage(tr("SUSTAIN"));
    for (auto& v : m_engine->getActiveVoices())
      v->setPedal(true);
    m_ctrlVals[64] = 127;
  } else if (!sustain && m_ctrlVals[64] >= 0x40) {
    m_ui.statusbar->setNormalMessage({});
    for (auto& v : m_engine->getActiveVoices())
      v->setPedal(false);
    m_ctrlVals[64] = 0;
  }
}

void MainWindow::keyPressEvent(QKeyEvent* ev) {
  if (ev->key() == Qt::Key_Shift)
    setSustain(true);
  else if (ev->key() == Qt::Key_Escape)
    killSounds();
}

void MainWindow::keyReleaseEvent(QKeyEvent* ev) {
  if (ev->key() == Qt::Key_Shift)
    setSustain(false);
}

void MainWindow::startBackgroundTask(int id, const QString& windowTitle, const QString& label,
                                     std::function<void(BackgroundTask&)>&& task) {
  assert(m_backgroundTask == nullptr && "existing background process");
  setEnabled(false);

  m_backgroundTask = new BackgroundTask(id, std::move(task));
  m_backgroundTask->moveToThread(&m_backgroundThread);

  m_backgroundDialog = new QProgressDialog(this);
  m_backgroundDialog->setWindowTitle(windowTitle);
  m_backgroundDialog->setLabelText(label);
  m_backgroundDialog->setMinimumWidth(300);
  m_backgroundDialog->setAutoClose(false);
  m_backgroundDialog->setAutoReset(false);
  m_backgroundDialog->setMinimumDuration(0);
  m_backgroundDialog->setMinimum(0);
  m_backgroundDialog->setMaximum(0);
  m_backgroundDialog->setValue(0);

  connect(m_backgroundTask, &BackgroundTask::setMinimum, m_backgroundDialog, &QProgressDialog::setMinimum,
          Qt::QueuedConnection);
  connect(m_backgroundTask, &BackgroundTask::setMaximum, m_backgroundDialog, &QProgressDialog::setMaximum,
          Qt::QueuedConnection);
  connect(m_backgroundTask, &BackgroundTask::setValue, m_backgroundDialog, &QProgressDialog::setValue,
          Qt::QueuedConnection);
  connect(m_backgroundTask, &BackgroundTask::setLabelText, m_backgroundDialog, &QProgressDialog::setLabelText,
          Qt::QueuedConnection);
  connect(m_backgroundTask, &BackgroundTask::finished, this, &MainWindow::onBackgroundTaskFinished,
          Qt::QueuedConnection);
  m_backgroundDialog->open(m_backgroundTask, SLOT(cancel()));

  connectMessenger(&m_backgroundTask->uiMessenger(), Qt::BlockingQueuedConnection);

  QMetaObject::invokeMethod(m_backgroundTask, "run", Qt::QueuedConnection);
}

bool MainWindow::_setEditor(EditorWidget* editor, bool appendNav) {
  m_interactiveSeq.reset();
  if (editor != m_ui.editorContents->currentWidget() && m_ui.editorContents->currentWidget() != m_faceSvg)
    getEditorWidget()->unloadData();
  if (appendNav && m_navIt != m_navList.end())
    m_navList.erase(m_navIt + 1, m_navList.end());
  if (!editor || !editor->valid()) {
    m_ui.editorContents->setCurrentWidget(m_faceSvg);
    updateWindowTitle();
    if (appendNav) {
      m_navIt = m_navList.end();
      updateNavigationButtons();
    }
    return false;
  }
  m_ui.editorContents->setCurrentWidget(editor);
  m_ui.editorContents->update();
  updateWindowTitle();
  ProjectModel::INode* currentNode = editor->currentNode();
  if (appendNav) {
    if (m_navIt == m_navList.end() || *m_navIt != currentNode)
      m_navIt = m_navList.insert(m_navList.end(), currentNode);
    updateNavigationButtons();
  }
  recursiveExpandAndSelectOutline(m_projectModel->index(currentNode));
  return true;
}

bool MainWindow::openEditor(ProjectModel::SongGroupNode* node, bool appendNav) {
  bool ret = _setEditor(m_songGroupEditor->loadData(node) ? m_songGroupEditor : nullptr, appendNav);
  if (ProjectModel::INode* n = getEditorNode()) {
    if (n->type() == ProjectModel::INode::Type::SongGroup) {
      ProjectModel::SongGroupNode* cn = static_cast<ProjectModel::SongGroupNode*>(n);
      ProjectModel::GroupNode* gn = m_projectModel->getGroupNode(n);
      m_interactiveSeq = m_engine->seqPlay(gn->getAudioGroup(), cn->m_id, {}, nullptr);
    }
  }
  return ret;
}

bool MainWindow::openEditor(ProjectModel::SoundGroupNode* node, bool appendNav) {
  bool ret = _setEditor(m_soundGroupEditor->loadData(node) ? m_soundGroupEditor : nullptr, appendNav);
  if (ProjectModel::INode* n = getEditorNode()) {
    if (n->type() == ProjectModel::INode::Type::SoundGroup) {
      ProjectModel::SoundGroupNode* cn = static_cast<ProjectModel::SoundGroupNode*>(n);
      ProjectModel::GroupNode* gn = m_projectModel->getGroupNode(n);
      m_interactiveSeq = m_engine->seqPlay(gn->getAudioGroup(), cn->m_id, {}, nullptr);
    }
  }
  return ret;
}

bool MainWindow::openEditor(ProjectModel::SoundMacroNode* node, bool appendNav) {
  return _setEditor(m_soundMacroEditor->loadData(node) ? m_soundMacroEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::ADSRNode* node, bool appendNav) {
  return _setEditor(m_adsrEditor->loadData(node) ? m_adsrEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::CurveNode* node, bool appendNav) {
  return _setEditor(m_curveEditor->loadData(node) ? m_curveEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::KeymapNode* node, bool appendNav) {
  return _setEditor(m_keymapEditor->loadData(node) ? m_keymapEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::LayersNode* node, bool appendNav) {
  return _setEditor(m_layersEditor->loadData(node) ? m_layersEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::SampleNode* node, bool appendNav) {
  return _setEditor(m_sampleEditor->loadData(node) ? m_sampleEditor : nullptr, appendNav);
}

bool MainWindow::openEditor(ProjectModel::INode* node, bool appendNav) {
  if (m_uiDisabled)
    return false;
  switch (node->type()) {
  case ProjectModel::INode::Type::SongGroup:
    return openEditor(static_cast<ProjectModel::SongGroupNode*>(node), appendNav);
  case ProjectModel::INode::Type::SoundGroup:
    return openEditor(static_cast<ProjectModel::SoundGroupNode*>(node), appendNav);
  case ProjectModel::INode::Type::SoundMacro:
    return openEditor(static_cast<ProjectModel::SoundMacroNode*>(node), appendNav);
  case ProjectModel::INode::Type::ADSR:
    return openEditor(static_cast<ProjectModel::ADSRNode*>(node), appendNav);
  case ProjectModel::INode::Type::Curve:
    return openEditor(static_cast<ProjectModel::CurveNode*>(node), appendNav);
  case ProjectModel::INode::Type::Keymap:
    return openEditor(static_cast<ProjectModel::KeymapNode*>(node), appendNav);
  case ProjectModel::INode::Type::Layer:
    return openEditor(static_cast<ProjectModel::LayersNode*>(node), appendNav);
  case ProjectModel::INode::Type::Sample:
    return openEditor(static_cast<ProjectModel::SampleNode*>(node), appendNav);
  default:
    return false;
  }
}

void MainWindow::closeEditor() { _setEditor(nullptr); }

ProjectModel::INode* MainWindow::getEditorNode() const {
  if (EditorWidget* w = getEditorWidget())
    return w->currentNode();
  return nullptr;
}

EditorWidget* MainWindow::getEditorWidget() const {
  if (m_ui.editorContents->currentWidget() != m_faceSvg)
    return static_cast<EditorWidget*>(m_ui.editorContents->currentWidget());
  return nullptr;
}

amuse::ObjToken<amuse::Voice> MainWindow::startEditorVoice(uint8_t key, uint8_t velocity) {
  amuse::ObjToken<amuse::Voice> vox;
  if (ProjectModel::INode* node = getEditorNode()) {
    amuse::AudioGroupDatabase* group = projectModel()->getGroupNode(node)->getAudioGroup();
    if (node->type() == ProjectModel::INode::Type::SoundMacro) {
      ProjectModel::SoundMacroNode* cNode = static_cast<ProjectModel::SoundMacroNode*>(node);
      vox = m_engine->macroStart(group, cNode->id(), key, velocity, m_ctrlVals[1]);
    } else if (node->type() == ProjectModel::INode::Type::Keymap || node->type() == ProjectModel::INode::Type::Layer) {
      ProjectModel::BasePoolObjectNode* cNode = static_cast<ProjectModel::BasePoolObjectNode*>(node);
      vox = m_engine->pageObjectStart(group, cNode->id(), key, velocity, m_ctrlVals[1]);
    } else if (node->type() == ProjectModel::INode::Type::Sample) {
      SampleEditor* editor = static_cast<SampleEditor*>(m_ui.editorContents->currentWidget());
      vox = m_engine->macroStart(group, editor->soundMacro(), key, velocity, m_ctrlVals[1]);
    }
    if (vox) {
      vox->setPedal(m_ctrlVals[64] >= 0x40);
      vox->setPitchWheel(m_pitch);
      vox->installCtrlValues(m_ctrlVals);
      vox->setReverbVol(m_auxAVol);
      vox->setAuxBVol(m_auxBVol);
    }
  }
  return vox;
}

amuse::ObjToken<amuse::Voice> MainWindow::startSFX(amuse::GroupId groupId, amuse::SFXId sfxId) {
  if (ProjectModel::INode* node = getEditorNode()) {
    amuse::AudioGroupDatabase* group = projectModel()->getGroupNode(node)->getAudioGroup();
    auto ret = m_engine->fxStart(group, groupId, sfxId, 1.f, 0.f);
    ret->setReverbVol(m_auxAVol);
    ret->setAuxBVol(m_auxBVol);
    return ret;
  }
  return {};
}

amuse::ObjToken<amuse::Sequencer> MainWindow::startSong(amuse::GroupId groupId, amuse::SongId songId,
                                                        const unsigned char* arrData) {
  if (ProjectModel::INode* node = getEditorNode()) {
    amuse::AudioGroupDatabase* group = projectModel()->getGroupNode(node)->getAudioGroup();
    auto ret = m_engine->seqPlay(group, groupId, songId, arrData);
    for (uint8_t i = 0; i < 16; ++i) {
      ret->setCtrlValue(i, 0x5b, int8_t(m_auxAVol * 127.f));
      ret->setCtrlValue(i, 0x5d, int8_t(m_auxBVol * 127.f));
    }
    return ret;
  }
  return {};
}

void MainWindow::pushUndoCommand(EditorUndoCommand* cmd) { m_undoStack->push(cmd); }

void MainWindow::updateFocus() { onFocusChanged(nullptr, focusWidget()); }

void MainWindow::aboutToDeleteNode(ProjectModel::INode* node) {
  if (*m_navIt == node && m_navIt != m_navList.end()) {
    m_navList.erase(m_navIt, m_navList.end());
    m_navIt = m_navList.end();
  }
  for (auto it = m_navList.begin(); it != m_navList.end();) {
    if (*it == node) {
      it = m_navList.erase(it);
      continue;
    }
    ++it;
  }
  updateNavigationButtons();
  if (getEditorNode() == node)
    closeEditor();
}

bool MainWindow::askAboutSave() {
  if (!m_projectModel)
    return true;

  if (!m_undoStack->isClean()) {
    QDir dir(m_projectModel->path());
    int result =
        m_mainMessenger.question(tr("Unsaved Changes"), tr("Save Changes in %1?").arg(dir.dirName()),
                                 QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Save);
    if (result == QMessageBox::Save) {
      saveAction();
      return true;
    }
    return result == QMessageBox::Discard;
  } else {
    return true;
  }
}

void MainWindow::closeEvent(QCloseEvent* ev) {
  if (askAboutSave())
    ev->accept();
  else
    ev->ignore();
}

void MainWindow::showEvent(QShowEvent* ev) { m_studioSetup->updateWindowPosition(); }

void MainWindow::newAction() {
  if (!askAboutSave())
    return;

  m_newFileDialog.setWindowTitle(tr("New Project"));
  m_newFileDialog.open(this, SLOT(_newAction(const QString&)));
}

void MainWindow::_newAction(const QString& path) {
  m_newFileDialog.close();
  if (path.isEmpty())
    return;
  if (!MkPath(path, m_mainMessenger))
    return;
  if (!setProjectPath(path))
    return;

  m_projectModel->clearProjectData();
  bool hasGroups = m_projectModel->ensureModelData();
  m_ui.actionImport_Groups->setDisabled(hasGroups);
  m_ui.actionImport_Songs->setEnabled(hasGroups);
}

bool MainWindow::openProject(const QString& path) {
  QDir dir(path);
  if (dir.path().isEmpty() || dir.path() == QStringLiteral(".") || dir.path() == QStringLiteral("..")) {
    QString msg = QString(tr("The directory at '%1' must not be empty.")).arg(path);
    m_mainMessenger.critical(tr("Directory empty"), msg);
    return false;
  } else if (!dir.exists()) {
    QString msg = QString(tr("The directory at '%1' does not exist.")).arg(path);
    m_mainMessenger.critical(tr("Bad Directory"), msg);
    return false;
  }

  if (QFileInfo(dir, QStringLiteral("!project.yaml")).exists() && QFileInfo(dir, QStringLiteral("!pool.yaml")).exists())
    dir.cdUp();

  if (m_projectModel && m_projectModel->path() == dir.path())
    return true;

  if (!setProjectPath(dir.path()))
    return false;

  ProjectModel* model = m_projectModel;
  startBackgroundTask(TaskOpen, tr("Opening"), tr("Scanning Project"), [dir, model](BackgroundTask& task) {
    QStringList childDirs = dir.entryList(QDir::Dirs);
    for (const auto& chDir : childDirs) {
      if (task.isCanceled())
        return;
      if (chDir == QStringLiteral("out"))
        continue;
      QString chPath = dir.filePath(chDir);
      if (QFileInfo(chPath, QStringLiteral("!project.yaml")).exists() &&
          QFileInfo(chPath, QStringLiteral("!pool.yaml")).exists()) {
        task.setLabelText(tr("Opening %1").arg(chDir));
        if (!model->openGroupData(chDir, task.uiMessenger()))
          return;
      }
    }
    model->openSongsData();
  });

  return true;
}

void MainWindow::openAction() {
  if (!askAboutSave())
    return;

  m_openDirectoryDialog.setWindowTitle(tr("Open Project"));
  m_openDirectoryDialog.open(this, SLOT(_openAction(const QString&)));
}

void MainWindow::_openAction(const QString& path) {
  m_openDirectoryDialog.close();
  if (path.isEmpty())
    return;
  openProject(path);
}

void MainWindow::openRecentFileAction() {
  if (!askAboutSave()) {
    return;
  }

  if (const QAction* action = qobject_cast<QAction*>(sender())) {
    const QString path = action->data().toString();
    if (openProject(path)) {
      return;
    }

    const QString key = QStringLiteral("recentFileList");
    QSettings settings;
    QStringList files = settings.value(key).toStringList();

    files.removeAll(path);
    settings.setValue(key, files);
    settings.sync();
    updateRecentFileActions();
  }
}

void MainWindow::clearRecentFilesAction() {
  QSettings settings;
  settings.setValue(QStringLiteral("recentFileList"), QStringList());
  settings.sync();
  updateRecentFileActions();
}

void MainWindow::saveAction() {
  if (m_projectModel) {
    m_projectModel->saveToFile(m_mainMessenger);
    m_undoStack->setClean();
  }
}

void MainWindow::revertAction() {
  if (m_projectModel && !m_undoStack->isClean()) {
    QDir dir(m_projectModel->path());
    int result = m_mainMessenger.question(tr("Unsaved Changes"), tr("Discard Changes in %1?").arg(dir.dirName()),
                                          QMessageBox::Discard | QMessageBox::Cancel, QMessageBox::Cancel);
    if (result == QMessageBox::Cancel)
      return;
  }

  QString path = m_projectModel->path();
  closeEditor();
  m_undoStack->clear();
  m_navList.clear();
  m_navIt = m_navList.begin();
  updateNavigationButtons();
  delete m_projectModel;
  m_projectModel = nullptr;
  openProject(path);
}

void MainWindow::reloadSampleDataAction() {
  closeEditor();

  ProjectModel* model = m_projectModel;
  if (!m_projectModel)
    return;

  QDir dir(m_projectModel->path());
  if (!dir.exists())
    return;

  startBackgroundTask(TaskReloadSamples, tr("Reloading Samples"), tr("Scanning Project"),
                      [dir, model](BackgroundTask& task) {
                        QStringList childDirs = dir.entryList(QDir::Dirs);
                        for (const auto& chDir : childDirs) {
                          if (task.isCanceled())
                            return;
                          if (chDir == QStringLiteral("out"))
                            continue;
                          QString chPath = dir.filePath(chDir);
                          if (QFileInfo(chPath, QStringLiteral("!project.yaml")).exists() &&
                              QFileInfo(chPath, QStringLiteral("!pool.yaml")).exists()) {
                            task.setLabelText(tr("Scanning %1").arg(chDir));
                            if (!model->reloadSampleData(chDir, task.uiMessenger()))
                              return;
                          }
                        }
                      });
}

void MainWindow::importAction() {
  m_openFileDialog.setWindowTitle(tr("Import Project"));
  m_openFileDialog.open(this, SLOT(_importAction(const QString&)));
}

void MainWindow::_importAction(const QString& path) {
  m_openFileDialog.close();
  if (path.isEmpty())
    return;

  /* Validate input file */
  amuse::ContainerRegistry::Type tp = amuse::ContainerRegistry::DetectContainerType(QStringToSysString(path).c_str());
  if (tp == amuse::ContainerRegistry::Type::Invalid) {
    QString msg = QString(tr("The file at '%1' could not be interpreted as a MusyX container.")).arg(path);
    m_mainMessenger.critical(tr("Unsupported MusyX Container"), msg);
    return;
  }

  /* Ask user about sample conversion */
  int impMode = m_mainMessenger.question(tr("Sample Import Mode"),
                                         tr("Amuse can import samples as WAV files for ease of editing, "
                                            "import original compressed data for lossless repacking, or both. "
                                            "Exporting the project will prefer whichever version was modified "
                                            "most recently."),
                                         tr("Import Compressed"), tr("Import WAVs"), tr("Import Both"));

  switch (impMode) {
  case 0:
  case 1:
  case 2:
    break;
  default:
    return;
  }
  ProjectModel::ImportMode importMode = ProjectModel::ImportMode(impMode);

  /* Special handling for raw groups - gather sibling groups in filesystem */
  if (tp == amuse::ContainerRegistry::Type::Raw4) {
    int scanMode = m_mainMessenger.question(tr("Raw Import Mode"),
                                            tr("Would you like to scan for all MusyX group files in this directory?"),
                                            QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
    if (scanMode == QMessageBox::Yes) {
      /* Auto-create project */
      if (m_projectModel == nullptr) {
        QString newName;
        bool ok = true;
        while (ok && newName.isEmpty())
          newName = QInputDialog::getText(this, tr("Project Name"), tr("What should this project be named?"),
                                          QLineEdit::Normal, QString(), &ok);
        if (!ok)
          return;

        QFileInfo fInfo(path);
        QString newPath = QFileInfo(fInfo.dir(), newName).filePath();
        if (!MkPath(fInfo.dir(), newName, m_mainMessenger))
          return;
        if (!setProjectPath(newPath))
          return;
      }

      ProjectModel* model = m_projectModel;
      startBackgroundTask(
          TaskImport, tr("Importing"), tr("Scanning Project"), [model, path, importMode](BackgroundTask& task) {
            const QDir dir = QFileInfo(path).dir();
            const QStringList filters{QStringLiteral("*.proj"), QStringLiteral("*.pro")};
            const QStringList files = dir.entryList(filters, QDir::Files);

            for (const QString& fPath : files) {
              auto data = amuse::ContainerRegistry::LoadContainer(QStringToSysString(dir.filePath(fPath)).c_str());
              for (auto& p : data) {
                task.setLabelText(tr("Importing %1").arg(SysStringToQString(p.first)));
                if (task.isCanceled())
                  return;
                if (!model->importGroupData(SysStringToQString(p.first), p.second, importMode, task.uiMessenger()))
                  return;
              }
            }
            model->openSongsData();
          });

      return;
    } else if (scanMode == QMessageBox::No) {
    } else {
      return;
    }
  }

  /* Auto-create project */
  if (m_projectModel == nullptr) {
    QFileInfo fInfo(path);
    QString newPath = QFileInfo(fInfo.dir(), fInfo.completeBaseName()).filePath();
    if (!MkPath(fInfo.dir(), fInfo.completeBaseName(), m_mainMessenger))
      return;
    if (!setProjectPath(newPath))
      return;
  }

  ProjectModel* model = m_projectModel;
  startBackgroundTask(
      TaskImport, tr("Importing"), tr("Scanning Project"), [model, path, importMode](BackgroundTask& task) {
        /* Handle single container */
        auto data = amuse::ContainerRegistry::LoadContainer(QStringToSysString(path).c_str());
        task.setMaximum(int(data.size()));
        int curVal = 0;
        for (auto& p : data) {
          task.setLabelText(tr("Importing %1").arg(SysStringToQString(p.first)));
          if (task.isCanceled())
            return;
          if (!model->importGroupData(SysStringToQString(p.first), p.second, importMode, task.uiMessenger()))
            return;
          task.setValue(++curVal);
        }
        model->openSongsData();
      });
}

void MainWindow::importSongsAction() {
  if (!m_projectModel)
    return;

  m_openFileDialog.setWindowTitle(tr("Import Songs"));
  m_openFileDialog.open(this, SLOT(_importSongsAction(const QString&)));
}

void MainWindow::_importSongsAction(const QString& path) {
  m_openFileDialog.close();
  if (path.isEmpty())
    return;

  closeEditor();
  m_projectModel->importSongsData(path);
}

void MainWindow::exportAction() {
  if (!m_projectModel)
    return;

  QFileInfo dirInfo(m_projectModel->dir(), QStringLiteral("out"));
  if (!MkPath(dirInfo.filePath(), m_mainMessenger))
    return;

  QDir dir(dirInfo.filePath());

  ProjectModel* model = m_projectModel;
  startBackgroundTask(BackgroundTaskId::TaskExport, tr("Exporting"), tr("Scanning Project"),
                      [model, dir](BackgroundTask& task) {
                        QStringList groupList = model->getGroupList();
                        task.setMaximum(groupList.size());
                        int curVal = 0;
                        for (QString group : groupList) {
                          task.setLabelText(tr("Exporting %1").arg(group));
                          if (task.isCanceled())
                            return;
                          if (!model->exportGroup(dir.path(), group, task.uiMessenger()))
                            return;
                          task.setValue(++curVal);
                        }
                      });
}

void MainWindow::importHeadersAction() {
  if (!m_projectModel)
    return;

  int confirm =
      m_mainMessenger.warning(tr("Import C Headers"),
                              tr("<p>Importing names from C headers depends on up-to-date, "
                                 "consistent names relative to the sound group data.</p>"
                                 "<p>Headers are imported on a per-subproject basis from "
                                 "a single directory. Headers must be named with the form "
                                 "<code>&lt;subproject&gt;.h</code>.</p>"
                                 "<p>Group, Song and SFX definitions are matched according to the following forms:"
                                 "<pre>#define GRP&lt;name&gt; &lt;id&gt;\n#define SNG&lt;name&gt; &lt;id&gt;\n"
                                 "#define SFX&lt;name> &lt;id&gt;</pre></p>"
                                 "<p><strong>This operation cannot be undone! It is recommended to "
                                 "make a backup of the project directory before proceeding.</strong></p>"
                                 "<p>Continue?</p>"),
                              QMessageBox::Yes | QMessageBox::No);
  if (confirm == QMessageBox::No)
    return;

  m_openDirectoryDialog.setWindowTitle(tr("Import C Headers"));
  m_openDirectoryDialog.open(this, SLOT(_importHeadersAction(const QString&)));
}

void MainWindow::_importHeadersAction(const QString& path) {
  m_openDirectoryDialog.close();
  if (path.isEmpty())
    return;

  closeEditor();

  for (QString group : m_projectModel->getGroupList())
    m_projectModel->importHeader(path, group, m_mainMessenger);
  m_projectModel->updateNodeNames();

  /* Samples may have been renamed.. stay consistent! */
  saveAction();
}

void MainWindow::exportHeadersAction() {
  if (!m_projectModel)
    return;

  m_openDirectoryDialog.setWindowTitle(tr("Export C Headers"));
  m_openDirectoryDialog.open(this, SLOT(_exportHeadersAction(const QString&)));
}

void MainWindow::_exportHeadersAction(const QString& path) {
  m_openDirectoryDialog.close();
  if (path.isEmpty())
    return;

  bool yesToAll = false;
  for (QString group : m_projectModel->getGroupList())
    if (!m_projectModel->exportHeader(path, group, yesToAll, m_mainMessenger))
      return;
}

bool TreeDelegate::editorEvent(QEvent* event, QAbstractItemModel* __model, const QStyleOptionViewItem& option,
                               const QModelIndex& index) {
  QSortFilterProxyModel* _model = static_cast<QSortFilterProxyModel*>(__model);
  ProjectModel* model = static_cast<ProjectModel*>(_model->sourceModel());
  ProjectModel::INode* node = model->node(_model->mapToSource(index));
  if (!node || !(node->flags() & Qt::ItemIsEditable))
    return false;
  AmuseItemEditFlags flags = node->editFlags();

  if (event->type() == QEvent::MouseButtonPress) {
    QMouseEvent* ev = static_cast<QMouseEvent*>(event);
    if (ev->button() == Qt::RightButton) {
      ContextMenu* menu = new ContextMenu;

      if (node->type() == ProjectModel::INode::Type::Group) {
        QAction* exportGroupAction = new QAction(tr("Export GameCube Group"), menu);
        exportGroupAction->setData(QVariant::fromValue((void*)node));
        connect(exportGroupAction, &QAction::triggered, this, &TreeDelegate::doExportGroup);
        menu->addAction(exportGroupAction);

        menu->addSeparator();
      }

      QAction* findUsagesAction = new QAction(tr("Find Usages"), menu);
      findUsagesAction->setData(QVariant::fromValue((void*)node));
      findUsagesAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-find")));
      connect(findUsagesAction, &QAction::triggered, this, &TreeDelegate::doFindUsages);
      menu->addAction(findUsagesAction);

      menu->addSeparator();

      QAction* cutAction = new QAction(tr("Cut"), menu);
      cutAction->setData(index);
      cutAction->setEnabled(flags & AmuseItemCut);
      cutAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-cut")));
      cutAction->setShortcut(QKeySequence::Cut);
      connect(cutAction, &QAction::triggered, this, &TreeDelegate::doCut);
      menu->addAction(cutAction);

      QAction* copyAction = new QAction(tr("Copy"), menu);
      copyAction->setData(index);
      copyAction->setEnabled(flags & AmuseItemCopy);
      copyAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-copy")));
      copyAction->setShortcut(QKeySequence::Copy);
      connect(copyAction, &QAction::triggered, this, &TreeDelegate::doCopy);
      menu->addAction(copyAction);

      QAction* pasteAction = new QAction(tr("Paste"), menu);
      pasteAction->setData(index);
      pasteAction->setEnabled(g_MainWindow->m_clipboardAmuseData && flags & AmuseItemPaste);
      pasteAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-paste")));
      pasteAction->setShortcut(QKeySequence::Paste);
      connect(pasteAction, &QAction::triggered, this, &TreeDelegate::doPaste);
      menu->addAction(pasteAction);

      QAction* dupeAction = new QAction(tr("Duplicate"), menu);
      dupeAction->setData(index);
      connect(dupeAction, &QAction::triggered, this, &TreeDelegate::doDuplicate);
      menu->addAction(dupeAction);

      QAction* deleteAction = new QAction(tr("Delete"), menu);
      deleteAction->setData(index);
      deleteAction->setEnabled(flags & AmuseItemDelete);
      deleteAction->setIcon(QIcon::fromTheme(QStringLiteral("edit-delete")));
      deleteAction->setShortcut(QKeySequence::Delete);
      connect(deleteAction, &QAction::triggered, this, &TreeDelegate::doDelete);
      menu->addAction(deleteAction);

      QAction* renameAction = new QAction(tr("Rename"), menu);
      renameAction->setData(index);
      renameAction->setShortcut(Qt::Key_F2);
      connect(renameAction, &QAction::triggered, this, &TreeDelegate::doRename);
      menu->addAction(renameAction);

      menu->popup(ev->globalPos());
    }
  }

  return false;
}

void TreeDelegate::doExportGroup() {
  if (!m_window.m_projectModel)
    return;
  QAction* act = qobject_cast<QAction*>(sender());
  if (ProjectModel::INode* node = reinterpret_cast<ProjectModel::INode*>(act->data().value<void*>())) {
    if (node->type() != ProjectModel::INode::Type::Group)
      return;
    QString groupName = static_cast<ProjectModel::GroupNode*>(node)->name();
    ProjectModel* model = m_window.m_projectModel;

    QFileInfo dirInfo(model->dir(), QStringLiteral("out"));
    if (!MkPath(dirInfo.filePath(), m_window.m_mainMessenger))
      return;

    QDir dir(dirInfo.filePath());

    m_window.startBackgroundTask(BackgroundTaskId::TaskExport, tr("Exporting"), tr("Exporting %1").arg(groupName),
                                 [model, dir, groupName](BackgroundTask& task) {
                                   model->exportGroup(dir.path(), groupName, task.uiMessenger());
                                 });
  }
}

void TreeDelegate::doFindUsages() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (ProjectModel::INode* node = reinterpret_cast<ProjectModel::INode*>(act->data().value<void*>()))
    m_window.findUsages(node);
}

void TreeDelegate::doCut() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (!m_window.m_projectModel)
    return;
  m_window.m_projectModel->cut(m_window.m_projectModel->getOutlineProxy()->mapToSource(act->data().toModelIndex()));
}

void TreeDelegate::doCopy() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (!m_window.m_projectModel)
    return;
  m_window.m_projectModel->copy(m_window.m_projectModel->getOutlineProxy()->mapToSource(act->data().toModelIndex()));
}

void TreeDelegate::doPaste() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (!m_window.m_projectModel)
    return;
  m_window.m_projectModel->paste(m_window.m_projectModel->getOutlineProxy()->mapToSource(act->data().toModelIndex()));
}

void TreeDelegate::doDuplicate() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (!m_window.m_projectModel)
    return;
  QModelIndex newIdx = m_window.m_projectModel->duplicate(
      m_window.m_projectModel->getOutlineProxy()->mapToSource(act->data().toModelIndex()));
  if (newIdx.isValid()) {
    newIdx = m_window.m_projectModel->getOutlineProxy()->mapFromSource(newIdx);
    m_window.m_ui.projectOutline->edit(newIdx);
  }
}

void TreeDelegate::doDelete() {
  QAction* act = qobject_cast<QAction*>(sender());
  if (!m_window.m_projectModel)
    return;
  m_window.m_projectModel->del(m_window.m_projectModel->getOutlineProxy()->mapToSource(act->data().toModelIndex()));
}

void TreeDelegate::doRename() {
  QAction* act = qobject_cast<QAction*>(sender());
  m_window.m_ui.projectOutline->edit(act->data().toModelIndex());
}

QString MainWindow::getGroupName(ProjectModel::GroupNode* group) const {
  if (group)
    return group->text();
  return {};
}

ProjectModel::GroupNode* MainWindow::getSelectedGroupNode() const {
  if (!m_projectModel)
    return nullptr;
  if (!m_ui.projectOutline->currentIndex().isValid())
    return nullptr;
  return m_projectModel->getGroupNode(
      m_projectModel->node(m_projectModel->getOutlineProxy()->mapToSource(m_ui.projectOutline->currentIndex())));
}

QString MainWindow::getSelectedGroupName() const { return getGroupName(getSelectedGroupNode()); }

void MainWindow::_recursiveExpandOutline(const QModelIndex& filterIndex) const {
  if (filterIndex.isValid()) {
    _recursiveExpandOutline(filterIndex.parent());
    m_ui.projectOutline->expand(filterIndex);
  }
}

void MainWindow::recursiveExpandAndSelectOutline(const QModelIndex& index) const {
  QModelIndex filterIndex = m_projectModel->getOutlineProxy()->mapFromSource(index);
  _recursiveExpandOutline(filterIndex);
  if (filterIndex.isValid())
    m_ui.projectOutline->setCurrentIndex(filterIndex);
}

void MainWindow::newSubprojectAction() {
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(this, tr("New Subproject"), tr("What should this subproject be named?"),
                                    QLineEdit::Normal, QString(), &ok);
  }

  if (!ok) {
    return;
  }

  m_projectModel->newSubproject(std::move(newName));
}

void MainWindow::newSFXGroupAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New SFX Group"), tr("What should the new SFX group in %1 be named?").arg(groupName),
        QLineEdit::Normal,
        QString::fromStdString(amuse::GroupId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Group)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::SoundGroupNode* node = m_projectModel->newSoundGroup(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newSongGroupAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New Song Group"), tr("What should the new Song group in %1 be named?").arg(groupName),
        QLineEdit::Normal,
        QString::fromStdString(amuse::GroupId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Group)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::SongGroupNode* node = m_projectModel->newSongGroup(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newSoundMacroAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  const SoundMacroTemplateEntry* templ = nullptr;
  int result = QDialog::Accepted;

  while (result == QDialog::Accepted && newName.isEmpty()) {
    NewSoundMacroDialog dialog(groupName, this);
    dialog.setWindowModality(Qt::WindowModal);
    result = dialog.exec();
    newName = dialog.getName();
    templ = dialog.getSelectedTemplate();
  }

  if (result == QDialog::Rejected) {
    return;
  }

  ProjectModel::SoundMacroNode* node = m_projectModel->newSoundMacro(group, std::move(newName), templ);
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newADSRAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New ADSR"), tr("What should the new ADSR in %1 be named?").arg(groupName), QLineEdit::Normal,
        QString::fromStdString(amuse::TableId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Table)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::ADSRNode* node = m_projectModel->newADSR(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newCurveAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New Curve"), tr("What should the new Curve in %1 be named?").arg(groupName), QLineEdit::Normal,
        QString::fromStdString(amuse::TableId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Table)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::CurveNode* node = m_projectModel->newCurve(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newKeymapAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New Keymap"), tr("What should the new Keymap in %1 be named?").arg(groupName), QLineEdit::Normal,
        QString::fromStdString(amuse::KeymapId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Keymap)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::KeymapNode* node = m_projectModel->newKeymap(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::newLayersAction() {
  ProjectModel::GroupNode* group = getSelectedGroupNode();
  m_projectModel->setIdDatabases(group);
  const QString groupName = getGroupName(group);
  QString newName;
  bool ok = true;

  while (ok && newName.isEmpty()) {
    newName = QInputDialog::getText(
        this, tr("New Layers"), tr("What should the new Layers in %1 be named?").arg(groupName), QLineEdit::Normal,
        QString::fromStdString(amuse::LayersId::CurNameDB->generateDefaultName(amuse::NameDB::Type::Layer)), &ok);
  }

  if (!ok) {
    return;
  }

  ProjectModel::LayersNode* node = m_projectModel->newLayers(group, std::move(newName));
  if (node) {
    openEditor(node);
  }
}

void MainWindow::updateNavigationButtons() {
  m_goForward->setDisabled(m_navIt == m_navList.end() || m_navIt + 1 == m_navList.end());
  m_goBack->setDisabled(m_navIt == m_navList.begin());
}

void MainWindow::goForward() {
  if (m_navIt == m_navList.end() || m_navIt + 1 == m_navList.end())
    return;
  ++m_navIt;
  openEditor(*m_navIt, false);
  updateNavigationButtons();
}

void MainWindow::goBack() {
  if (m_navIt == m_navList.begin())
    return;
  --m_navIt;
  openEditor(*m_navIt, false);
  updateNavigationButtons();
}

void MainWindow::findUsages(ProjectModel::INode* node) {
  m_ui.projectOutlineFilter->setText(QStringLiteral("usages:") + node->name());
}

void MainWindow::aboutToShowAudioIOMenu() { refreshAudioIO(); }

void MainWindow::aboutToShowMIDIIOMenu() { refreshMIDIIO(); }

void MainWindow::setAudioIO() {
  QByteArray devName = qobject_cast<QAction*>(sender())->data().toString().toUtf8();
  if (m_voxEngine)
    m_voxEngine->setCurrentAudioOutput(devName.data());
}

void MainWindow::setMIDIIO(bool checked) {
  QAction* action = qobject_cast<QAction*>(sender());
  QByteArray devName = action->data().toString().toUtf8();
  if (m_voxEngine) {
    MIDIReader* mr = static_cast<MIDIReader*>(m_engine->getMIDIReader());
    if (devName == "<amuse-virtual-in>") {
      mr->setVirtualIn(checked);
      action->setChecked(mr->hasVirtualIn());
    } else {
      if (checked)
        mr->addMIDIIn(devName.data());
      else
        mr->removeMIDIIn(devName.data());
      action->setChecked(mr->hasMIDIIn(devName.data()));
    }
  }
}

void MainWindow::aboutAmuseAction() {
#ifdef Q_OS_MAC
  static QPointer<QMessageBox> oldMsgBox;

  if (oldMsgBox) {
    oldMsgBox->show();
    oldMsgBox->raise();
    oldMsgBox->activateWindow();
    return;
  }
#endif

  QString translatedTextAboutAmuseCaption;
  translatedTextAboutAmuseCaption = QMessageBox::tr("<h3>About Amuse</h3>");
  QString translatedTextAboutAmuseText;
  translatedTextAboutAmuseText = QMessageBox::tr(
      "<p>Amuse is an alternate editor and runtime library for MusyX sound groups.</p>"
      "<p>MusyX originally served as a widely-deployed audio system for "
      "developing games on the Nintendo 64, GameCube, and GameBoy Advance.</p>"
      "<p>Amuse is available under the MIT license.<br>"
      "Please see <a href=\"https://gitlab.axiodl.com/AxioDL/amuse/blob/master/LICENSE\">"
      "https://gitlab.axiodl.com/AxioDL/amuse/blob/master/LICENSE</a> for futher information.</p>"
      "<p>Copyright (C) 2015-2018 Antidote / Jackoalan.</p>"
      "<p>MusyX is a trademark of Factor 5, LLC.</p>"
      "<p>Nintendo 64, GameCube, and GameBoy Advance are trademarks of Nintendo Co., Ltd.</p>");
  QMessageBox* msgBox = new QMessageBox(this);
  msgBox->setAttribute(Qt::WA_DeleteOnClose);
  msgBox->setWindowTitle(tr("About Amuse"));
  msgBox->setText(translatedTextAboutAmuseCaption);
  msgBox->setInformativeText(translatedTextAboutAmuseText);
  msgBox->setIconPixmap(windowIcon().pixmap(64, 64));

  // should perhaps be a style hint
#ifdef Q_OS_MAC
  oldMsgBox = msgBox;
#if 0
    // ### doesn't work until close button is enabled in title bar
    //msgBox->d_func()->autoAddOkButton = false;
#else
  // msgBox->d_func()->buttonBox->setCenterButtons(true);
#endif
  msgBox->show();
#else
  msgBox->exec();
#endif
}

void MainWindow::aboutQtAction() { QMessageBox::aboutQt(this); }

void MainWindow::notePressed(int key) {
  if (m_engine) {
    if (m_lastSound)
      m_lastSound->keyOff();
    m_lastSound = startEditorVoice(key, m_velocity);
  }
}

void MainWindow::noteReleased() {
  if (m_lastSound) {
    m_lastSound->keyOff();
    m_lastSound.reset();
  }
}

void MainWindow::velocityChanged(int vel) { m_velocity = vel; }

void MainWindow::modulationChanged(int mod) {
  m_ctrlVals[1] = int8_t(mod);
  for (auto& v : m_engine->getActiveVoices())
    v->setCtrlValue(1, m_ctrlVals[1]);
}

void MainWindow::pitchChanged(int pitch) {
  m_pitch = pitch / 2048.f;
  for (auto& v : m_engine->getActiveVoices())
    v->setPitchWheel(m_pitch);
}

void MainWindow::killSounds() {
  for (auto& v : m_engine->getActiveVoices())
    v->kill();
}

void MainWindow::fxPressed() {
  if (m_studioSetup->isVisible())
    m_studioSetup->hide();
  else
    m_studioSetup->show();
}

void MainWindow::volumeChanged(int vol) { m_engine->setVolume(vol / 100.f); }

void MainWindow::auxAChanged(int vol) {
  m_auxAVol = vol / 100.f;
  for (auto& vox : m_engine->getActiveVoices())
    vox->setReverbVol(m_auxAVol);
  for (auto& seq : m_engine->getActiveSequencers())
    for (uint8_t i = 0; i < 16; ++i)
      seq->setCtrlValue(i, 0x5b, int8_t(m_auxAVol * 127.f));
}

void MainWindow::auxBChanged(int vol) {
  m_auxBVol = vol / 100.f;
  for (auto& vox : m_engine->getActiveVoices())
    vox->setAuxBVol(m_auxBVol);
  for (auto& seq : m_engine->getActiveSequencers())
    for (uint8_t i = 0; i < 16; ++i)
      seq->setCtrlValue(i, 0x5d, int8_t(m_auxBVol * 127.f));
}

void MainWindow::outlineCutAction() {
  if (!m_projectModel)
    return;
  m_projectModel->cut(m_projectModel->getOutlineProxy()->mapToSource(m_ui.projectOutline->currentIndex()));
}

void MainWindow::outlineCopyAction() {
  if (!m_projectModel)
    return;
  m_projectModel->copy(m_projectModel->getOutlineProxy()->mapToSource(m_ui.projectOutline->currentIndex()));
}

void MainWindow::outlinePasteAction() {
  if (!m_projectModel)
    return;
  m_projectModel->paste(m_projectModel->getOutlineProxy()->mapToSource(m_ui.projectOutline->currentIndex()));
}

void MainWindow::outlineDeleteAction() {
  if (!m_projectModel)
    return;
  m_projectModel->del(m_projectModel->getOutlineProxy()->mapToSource(m_ui.projectOutline->currentIndex()));
}

void MainWindow::onFocusChanged(QWidget* old, QWidget* now) {
  disconnect(m_cutConn);
  disconnect(m_copyConn);
  disconnect(m_pasteConn);
  disconnect(m_deleteConn);
  disconnect(m_canEditConn);

  if (QLineEdit* le = qobject_cast<QLineEdit*>(now)) {
    m_cutConn = connect(m_ui.actionCut, &QAction::triggered, le, &QLineEdit::cut);
    m_ui.actionCut->setEnabled(le->hasSelectedText());
    m_copyConn = connect(m_ui.actionCopy, &QAction::triggered, le, &QLineEdit::copy);
    m_ui.actionCopy->setEnabled(le->hasSelectedText());
    m_pasteConn = connect(m_ui.actionPaste, &QAction::triggered, le, &QLineEdit::paste);
    m_ui.actionPaste->setEnabled(true);
    m_deleteConn = connect(m_ui.actionDelete, &QAction::triggered, this, &MainWindow::onTextDelete);
    m_ui.actionDelete->setEnabled(true);
    m_canEditConn = connect(le, &QLineEdit::selectionChanged, this, &MainWindow::onTextSelect);
    return;
  }

  if (now == m_ui.projectOutline || m_ui.projectOutline->isAncestorOf(now)) {
    AmuseItemEditFlags editFlags = outlineEditFlags();
    if (!m_clipboardAmuseData)
      editFlags = AmuseItemEditFlags(editFlags & ~AmuseItemPaste);
    setItemEditFlags(editFlags);
    if (m_projectModel) {
      m_cutConn = connect(m_ui.actionCut, &QAction::triggered, this, &MainWindow::outlineCutAction);
      m_copyConn = connect(m_ui.actionCopy, &QAction::triggered, this, &MainWindow::outlineCopyAction);
      m_pasteConn = connect(m_ui.actionPaste, &QAction::triggered, this, &MainWindow::outlinePasteAction);
      m_deleteConn = connect(m_ui.actionDelete, &QAction::triggered, this, &MainWindow::outlineDeleteAction);
    }
  } else if (now == m_ui.editorContents || m_ui.editorContents->isAncestorOf(now)) {
    if (EditorWidget* editor = getEditorWidget()) {
      setItemEditFlags(editor->itemEditFlags());
      m_cutConn = connect(m_ui.actionCut, &QAction::triggered, editor, &EditorWidget::itemCutAction);
      m_copyConn = connect(m_ui.actionCopy, &QAction::triggered, editor, &EditorWidget::itemCopyAction);
      m_pasteConn = connect(m_ui.actionPaste, &QAction::triggered, editor, &EditorWidget::itemPasteAction);
      m_deleteConn = connect(m_ui.actionDelete, &QAction::triggered, editor, &EditorWidget::itemDeleteAction);
    } else {
      setItemEditFlags(AmuseItemNone);
    }
  }
}

void MainWindow::onClipboardChanged() {
  if (QClipboard* cb = qobject_cast<QClipboard*>(sender())) {
    if (const QMimeData* md = cb->mimeData()) {
      for (const QString& str : md->formats()) {
        if (str.startsWith(QStringLiteral("application/x-amuse-"))) {
          m_clipboardAmuseData = true;
          updateFocus();
          return;
        }
      }
    }
  }
  m_clipboardAmuseData = false;
  updateFocus();
}

void MainWindow::outlineItemActivated(const QModelIndex& index) {
  ProjectModel::INode* node = m_projectModel->node(m_projectModel->getOutlineProxy()->mapToSource(index));
  if (!node)
    return;
  openEditor(node);
}

void MainWindow::setItemEditFlags(AmuseItemEditFlags flags) {
  m_ui.actionCut->setEnabled(flags & AmuseItemCut);
  m_ui.actionCopy->setEnabled(flags & AmuseItemCopy);
  m_ui.actionPaste->setEnabled(flags & AmuseItemPaste);
  m_ui.actionDelete->setEnabled(flags & AmuseItemDelete);
}

void MainWindow::setItemNewEnabled(bool enabled) {
  m_ui.actionNew_SFX_Group->setEnabled(enabled);
  m_ui.actionNew_Song_Group->setEnabled(enabled);
  m_ui.actionNew_Sound_Macro->setEnabled(enabled);
  m_ui.actionNew_ADSR->setEnabled(enabled);
  m_ui.actionNew_Curve->setEnabled(enabled);
  m_ui.actionNew_Keymap->setEnabled(enabled);
  m_ui.actionNew_Layers->setEnabled(enabled);
}

AmuseItemEditFlags MainWindow::outlineEditFlags() {
  if (!m_projectModel)
    return AmuseItemNone;
  QModelIndex curIndex = m_ui.projectOutline->currentIndex();
  if (!curIndex.isValid())
    return AmuseItemNone;
  return m_projectModel->editFlags(m_projectModel->getOutlineProxy()->mapToSource(curIndex));
}

void MainWindow::onOutlineSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected) {
  if (!m_projectModel)
    return;
  setItemNewEnabled(m_ui.projectOutline->currentIndex().isValid());
  if (selected.indexes().empty())
    setItemEditFlags(AmuseItemNone);
  else
    setItemEditFlags(
        m_projectModel->editFlags(m_projectModel->getOutlineProxy()->mapToSource(selected.indexes().front())));
}

void MainWindow::onTextSelect() {
  if (QLineEdit* le = qobject_cast<QLineEdit*>(sender())) {
    m_ui.actionCut->setEnabled(le->hasSelectedText());
    m_ui.actionCopy->setEnabled(le->hasSelectedText());
  }
}

void MainWindow::onTextDelete() {
  if (QLineEdit* le = qobject_cast<QLineEdit*>(focusWidget())) {
    le->del();
  }
}

void MainWindow::cleanChanged(bool clean) { setWindowModified(!clean); }

void MainWindow::studioSetupHidden() { m_ui.statusbar->setFXDown(false); }

void MainWindow::studioSetupShown() { m_ui.statusbar->setFXDown(true); }

void MainWindow::onBackgroundTaskFinished(int id) {
  m_backgroundDialog->close();
  m_backgroundDialog->reset();
  m_backgroundDialog->deleteLater();
  m_backgroundDialog = nullptr;
  m_backgroundTask->deleteLater();
  m_backgroundTask = nullptr;

  if (id == TaskExport) {
    if (m_mainMessenger.question(tr("Export Complete"), tr("%1?").arg(ShowInGraphicalShellString())) ==
        QMessageBox::Yes) {
      QFileInfo dirInfo(m_projectModel->dir(), QStringLiteral("out"));
      QDir dir(dirInfo.filePath());
      QStringList entryList = dir.entryList(QDir::Files);
      ShowInGraphicalShell(this, entryList.empty() ? dirInfo.filePath() : QFileInfo(dir, entryList.first()).filePath());
    }
  } else {
    bool hasGroups = m_projectModel->ensureModelData();
    m_ui.actionImport_Groups->setDisabled(hasGroups);
    m_ui.actionImport_Songs->setEnabled(hasGroups);
  }

  setEnabled(true);
}

static int ShowOldMessageBox(QWidget* parent, QMessageBox::Icon icon, const QString& title, const QString& text,
                             const QString& button0Text, const QString& button1Text, const QString& button2Text,
                             int defaultButtonNumber, int escapeButtonNumber) {
  QMessageBox messageBox(icon, title, text, QMessageBox::NoButton, parent);
  messageBox.setWindowModality(Qt::WindowModal);
  QString myButton0Text = button0Text;
  if (myButton0Text.isEmpty())
    myButton0Text = QDialogButtonBox::tr("OK");
  messageBox.addButton(myButton0Text, QMessageBox::ActionRole);
  if (!button1Text.isEmpty())
    messageBox.addButton(button1Text, QMessageBox::ActionRole);
  if (!button2Text.isEmpty())
    messageBox.addButton(button2Text, QMessageBox::ActionRole);

  const QList<QAbstractButton*>& buttonList = messageBox.buttons();
  messageBox.setDefaultButton(static_cast<QPushButton*>(buttonList.value(defaultButtonNumber)));
  messageBox.setEscapeButton(buttonList.value(escapeButtonNumber));

  return messageBox.exec();
}

static QMessageBox::StandardButton ShowNewMessageBox(QWidget* parent, QMessageBox::Icon icon, const QString& title,
                                                     const QString& text, QMessageBox::StandardButtons buttons,
                                                     QMessageBox::StandardButton defaultButton) {
  QMessageBox msgBox(icon, title, text, QMessageBox::NoButton, parent);
  msgBox.setWindowModality(Qt::WindowModal);
  QDialogButtonBox* buttonBox = msgBox.findChild<QDialogButtonBox*>();
  Q_ASSERT(buttonBox != 0);

  uint mask = QMessageBox::FirstButton;
  while (mask <= QMessageBox::LastButton) {
    uint sb = buttons & mask;
    mask <<= 1;
    if (!sb)
      continue;
    QPushButton* button = msgBox.addButton((QMessageBox::StandardButton)sb);
    // Choose the first accept role as the default
    if (msgBox.defaultButton())
      continue;
    if ((defaultButton == QMessageBox::NoButton && buttonBox->buttonRole(button) == QDialogButtonBox::AcceptRole) ||
        (defaultButton != QMessageBox::NoButton && sb == uint(defaultButton)))
      msgBox.setDefaultButton(button);
  }
  if (msgBox.exec() == -1)
    return QMessageBox::Cancel;
  return msgBox.standardButton(msgBox.clickedButton());
}

QMessageBox::StandardButton MainWindow::msgInformation(const QString& title, const QString& text,
                                                       QMessageBox::StandardButtons buttons,
                                                       QMessageBox::StandardButton defaultButton) {
  return ShowNewMessageBox(this, QMessageBox::Information, title, text, buttons, defaultButton);
}

int MainWindow::msgQuestion(const QString& title, const QString& text, const QString& button0Text,
                            const QString& button1Text, const QString& button2Text, int defaultButtonNumber,
                            int escapeButtonNumber) {
  return ShowOldMessageBox(this, QMessageBox::Question, title, text, button0Text, button1Text, button2Text,
                           defaultButtonNumber, escapeButtonNumber);
}

QMessageBox::StandardButton MainWindow::msgQuestion(const QString& title, const QString& text,
                                                    QMessageBox::StandardButtons buttons,
                                                    QMessageBox::StandardButton defaultButton) {
  return ShowNewMessageBox(this, QMessageBox::Question, title, text, buttons, defaultButton);
}

QMessageBox::StandardButton MainWindow::msgWarning(const QString& title, const QString& text,
                                                   QMessageBox::StandardButtons buttons,
                                                   QMessageBox::StandardButton defaultButton) {
  return ShowNewMessageBox(this, QMessageBox::Warning, title, text, buttons, defaultButton);
}

QMessageBox::StandardButton MainWindow::msgCritical(const QString& title, const QString& text,
                                                    QMessageBox::StandardButtons buttons,
                                                    QMessageBox::StandardButton defaultButton) {
  return ShowNewMessageBox(this, QMessageBox::Critical, title, text, buttons, defaultButton);
}