File indexing completed on 2025-02-23 04:34:18

 /**
  * \file playlisteditdialog.cpp
  * Edit playlist dialog.
  *
  * \b Project: Kid3
  * \author Urs Fleisch
  * \date 05 Aug 2018
  *
  * Copyright (C) 2018-2024  Urs Fleisch
  *
  * This file is part of Kid3.
  *
  * Kid3 is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  *
  * Kid3 is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 #include "playlisteditdialog.h"
 #include <QVBoxLayout>
 #include <QDialogButtonBox>
 #include <QPushButton>
 #include <QMessageBox>
 #include <QCloseEvent>
 #include "contexthelp.h"
 #include "playlistmodel.h"
 #include "proxyitemselectionmodel.h"
 #include "playlistview.h"
 
 /**
  * Constructor.
  * @param model playlist model
  * @param selModel selection model of associated file proxy model
  * @param parent parent widget
  */
 PlaylistEditDialog::PlaylistEditDialog(PlaylistModel* model,
                                        QItemSelectionModel* selModel,
                                        QWidget* parent)
   : QDialog(parent), m_playlistModel(model)
 {
   setObjectName(QLatin1String("PlaylistEditDialog"));
   setModal(false);
   setSizeGripEnabled(true);
   setAttribute(Qt::WA_DeleteOnClose);
 #ifdef Q_OS_MAC
   setWindowFlags(windowFlags() | Qt::WindowStaysOnTopHint);
 #endif
 
   auto vlayout = new QVBoxLayout(this);
   QListView* playlist = new PlaylistView;
   playlist->setModel(m_playlistModel);
   playlist->setSelectionMode(QAbstractItemView::ExtendedSelection);
   playlist->setSelectionBehavior(QAbstractItemView::SelectRows);
   playlist->setSelectionModel(new ProxyItemSelectionModel(m_playlistModel,
                                                           selModel, this));
   playlist->setAcceptDrops(true);
   playlist->setDragEnabled(true);
   playlist->setDragDropMode(QAbstractItemView::DragDrop);
   playlist->setDragDropOverwriteMode(false);
   playlist->setDefaultDropAction(Qt::MoveAction);
   playlist->setDropIndicatorShown(true);
   playlist->viewport()->setAcceptDrops(true);
 
   vlayout->addWidget(playlist);
   m_buttonBox = new QDialogButtonBox(QDialogButtonBox::Help |
                                      QDialogButtonBox::Save |
                                      QDialogButtonBox::Cancel);
   connect(m_buttonBox, &QDialogButtonBox::helpRequested, this, &PlaylistEditDialog::showHelp);
   connect(m_buttonBox, &QDialogButtonBox::accepted, m_playlistModel, &PlaylistModel::save);
   connect(m_buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
   vlayout->addWidget(m_buttonBox);
 
   connect(m_playlistModel, &PlaylistModel::modifiedChanged,
           this, &PlaylistEditDialog::setModified);
   setModified(false);
 }
 
 /**
  * Destructor.
  */
 PlaylistEditDialog::~PlaylistEditDialog()
 {
   // Force rereading the file on the next Kid3Application::playlistModel().
   m_playlistModel->setPlaylistFile(QString());
 }
 
 /**
  * Show help.
  */
 void PlaylistEditDialog::showHelp()
 {
   ContextHelp::displayHelp(QLatin1String("edit-playlist"));
 }
 
 void PlaylistEditDialog::setModified(bool modified)
 {
   setWindowCaption();
   m_buttonBox->button(QDialogButtonBox::Save)->setEnabled(modified);
 }
 
 /**
  * Set window caption.
  */
 void PlaylistEditDialog::setWindowCaption()
 {
   QString title = tr("Playlist");
   if (QString fileName = m_playlistModel->playlistFileName();
       !fileName.isEmpty()) {
     title += QLatin1String(" - ");
     title += fileName;
     if (m_playlistModel->isModified()) {
       title += tr(" [modified]");
     }
   }
   setWindowTitle(title);
 }
 
 void PlaylistEditDialog::closeEvent(QCloseEvent* event)
 {
   if (m_playlistModel->isModified()) {
     int answer = QMessageBox::warning(
           this, tr("Warning"),
           tr("A playlist has been modified.\n"
              "Do you want to save it?"),
           QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel,
           QMessageBox::Yes);
     if (answer == QMessageBox::Yes) {
       m_playlistModel->save();
     }
     if (answer != QMessageBox::Yes && answer != QMessageBox::No) {
       event->ignore();
       return;
     }
   }
   QDialog::closeEvent(event);
 }