File indexing completed on 2025-01-05 03:57:54

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2021-08-27
  * Description : Showfoto folder view model.
  *
  * SPDX-FileCopyrightText: 2021-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "showfotofolderviewmodel.h"
 
 // Qt includes
 
 #include <QPainter>
 #include <QIODevice>
 #include <QModelIndex>
 #include <QMimeDatabase>
 #include <QFileInfo>
 
 // Local includes
 
 #include "digikam_debug.h"
 #include "digikam_globals.h"
 #include "drawdecoder.h"
 #include "thumbnailloadthread.h"
 #include "showfotofolderviewlist.h"
 
 using namespace Digikam;
 
 namespace ShowFoto
 {
 
 class Q_DECL_HIDDEN ShowfotoFolderViewModel::Private
 {
 
 public:
 
     explicit Private()
         : thumbnailThread (nullptr),
           view            (nullptr)
     {
     }
 
     ThumbnailLoadThread*    thumbnailThread;
     ShowfotoFolderViewList* view;
 
     static const int        s_maxSize;         ///< Max icon size.
 };
 
 const int ShowfotoFolderViewModel::Private::s_maxSize = 256;
 
 ShowfotoFolderViewModel::ShowfotoFolderViewModel(ShowfotoFolderViewList* const view)
     : QFileSystemModel(view),
       d               (new Private)
 {
     d->view               = view;
 
     setObjectName(QLatin1String("ShowfotoFolderViewModel"));
 
     // --- Populate the model
 
     setRootPath(QDir::rootPath());
 
     // If an item fails the filter, hide it
 
     setNameFilterDisables(false);
 
     d->thumbnailThread = new ThumbnailLoadThread;
     d->thumbnailThread->setSendSurrogatePixmap(false);
     d->thumbnailThread->setThumbnailSize(Private::s_maxSize);
 
     connect(d->thumbnailThread, SIGNAL(signalThumbnailLoaded(LoadingDescription,QPixmap)),
             this, SLOT(refreshThumbnails(LoadingDescription,QPixmap)));
 }
 
 ShowfotoFolderViewModel::~ShowfotoFolderViewModel()
 {
     d->thumbnailThread->stopAllTasks();
 
     delete d->thumbnailThread;
     delete d;
 }
 
 int ShowfotoFolderViewModel::maxIconSize()
 {
     return (Private::s_maxSize);
 }
 
 QVariant ShowfotoFolderViewModel::data(const QModelIndex& index, int role) const
 {
     if ((role == Qt::DecorationRole) && (index.column() == 0))
     {
         QString path = fileInfo(index).absoluteFilePath();
 
         if (isReadableImageFile(path))
         {
             QPixmap pix;
 
             if (d->thumbnailThread->find(ThumbnailIdentifier(path), pix))
             {
                 pix = pix.scaled(d->view->iconSize(), Qt::KeepAspectRatio,
                                                       Qt::FastTransformation);
 
                 QPixmap icon(d->view->iconSize());
                 icon.fill(Qt::transparent);
                 QPainter p(&icon);
                 p.drawPixmap((icon.width()  - pix.width() ) / 2,
                              (icon.height() - pix.height()) / 2,
                              pix);
 
                 return icon;
             }
         }
     }
 
     return QFileSystemModel::data(index, role);
 }
 
 void ShowfotoFolderViewModel::refreshThumbnails(const LoadingDescription& desc, const QPixmap& pix)
 {
     QModelIndex current = index(desc.filePath);
 
     if (current.isValid() && !pix.isNull())
     {
         Q_EMIT dataChanged(current, current);
     }
 }
 
 QStringList ShowfotoFolderViewModel::currentFilesPath() const
 {
     QStringList paths;
     QModelIndex idx = index(rootPath());
     QModelIndex child;
     QString file;
 
     for (int i = 0 ; i < rowCount(idx) ; ++i)
     {
         child = index(i, idx.column(), idx);
         file  = filePath(child);
 
         if (QFileInfo(file).isFile())
         {
             paths << file;
         }
     }
 
     return paths;
 }
 
 } // namespace ShowFoto
 
 #include "moc_showfotofolderviewmodel.cpp"