File indexing completed on 2025-03-09 03:58:43

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2012-20-07
  * Description : Thumbnail bar for import tool
  *
  * SPDX-FileCopyrightText: 2012      by Islam Wazery <wazery at ubuntu dot com>
  * SPDX-FileCopyrightText: 2012-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "importthumbnailbar.h"
 
 // Local includes
 
 #include "digikam_debug.h"
 #include "applicationsettings.h"
 #include "importsettings.h"
 #include "importdelegate.h"
 #include "importfiltermodel.h"
 #include "importoverlays.h"
 
 namespace Digikam
 {
 
 class Q_DECL_HIDDEN ImportThumbnailBar::Private
 {
 public:
 
     explicit Private()
       : scrollPolicy(Qt::ScrollBarAlwaysOn),
         duplicatesFilter(nullptr)
     {
     }
 
     Qt::ScrollBarPolicy            scrollPolicy;
     NoDuplicatesImportFilterModel* duplicatesFilter;
 };
 
 ImportThumbnailBar::ImportThumbnailBar(QWidget* const parent)
     : ImportCategorizedView(parent),
       d(new Private())
 {
     setItemDelegate(new ImportThumbnailDelegate(this));
     setSpacing(3);
     setUsePointingHandCursor(false);
     setScrollStepGranularity(5);
     setScrollBarPolicy(Qt::ScrollBarAlwaysOn);
 
     setDragEnabled(true);
     setAcceptDrops(true);
     setDropIndicatorShown(false);
 
     // Disable QListView::Batched optimization
     // for the thumbnail bar, see bug #468593
 
     setLayoutMode(QListView::SinglePass);
 
     setScrollCurrentToCenter(ApplicationSettings::instance()->getScrollItemToCenter());
     setToolTipEnabled(ImportSettings::instance()->showToolTipsIsValid());
 
     // --- NOTE: use dynamic binding as slotSetupChanged() is a virtual method which can be re-implemented in derived classes.
 
     connect(ImportSettings::instance(), &ImportSettings::setupChanged,
             this, &ImportThumbnailBar::slotSetupChanged);
 
     this->slotSetupChanged();
 
     // ---
 
     setFlow(LeftToRight);
 }
 
 ImportThumbnailBar::~ImportThumbnailBar()
 {
     delete d;
 }
 
 void ImportThumbnailBar::setModelsFiltered(ImportItemModel* model, ImportSortFilterModel* filterModel)
 {
     if (!d->duplicatesFilter)
     {
         d->duplicatesFilter = new NoDuplicatesImportFilterModel(this);
     }
 
     d->duplicatesFilter->setSourceFilterModel(filterModel);
     ImportCategorizedView::setModels(model, d->duplicatesFilter);
 }
 
 void ImportThumbnailBar::installOverlays()
 {
     ImportRatingOverlay* const ratingOverlay = new ImportRatingOverlay(this);
     addOverlay(ratingOverlay);
 
     connect(ratingOverlay, SIGNAL(ratingEdited(QList<QModelIndex>,int)),
             this, SLOT(assignRating(QList<QModelIndex>,int)));
 
     addOverlay(new ImportLockOverlay(this));
     addOverlay(new ImportDownloadOverlay(this));
     addOverlay(new ImportCoordinatesOverlay(this));
 }
 
 void ImportThumbnailBar::slotDockLocationChanged(Qt::DockWidgetArea area)
 {
     if ((area == Qt::LeftDockWidgetArea) || (area == Qt::RightDockWidgetArea))
     {
         setFlow(TopToBottom);
     }
     else
     {
         setFlow(LeftToRight);
     }
 
     scrollTo(currentIndex());
 }
 
 void ImportThumbnailBar::setScrollBarPolicy(Qt::ScrollBarPolicy policy)
 {
     if (policy == Qt::ScrollBarAsNeeded)
     {
         // Delegate resizing will cause endless relayouting, see bug #228807
 
         qCDebug(DIGIKAM_IMPORTUI_LOG) << "The Qt::ScrollBarAsNeeded policy is not supported by ImportThumbnailBar";
     }
 
     d->scrollPolicy = policy;
 
     if (flow() == TopToBottom)
     {
         setVerticalScrollBarPolicy(d->scrollPolicy);
         setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     }
     else
     {
         setHorizontalScrollBarPolicy(d->scrollPolicy);
         setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     }
 }
 
 void ImportThumbnailBar::setFlow(QListView::Flow flow)
 {
     setWrapping(false);
 
     ImportCategorizedView::setFlow(flow);
 
     ImportThumbnailDelegate* del = static_cast<ImportThumbnailDelegate*>(delegate());
     del->setFlow(flow);
 
     // Reset the minimum and maximum sizes.
 
     setMinimumSize(QSize(0, 0));
     setMaximumSize(QSize(QWIDGETSIZE_MAX, QWIDGETSIZE_MAX));
 
     // Adjust minimum and maximum width to thumbnail sizes.
 
     if (flow == TopToBottom)
     {
         int viewportFullWidgetOffset = size().width() - viewport()->size().width();
         setMinimumWidth(del->minimumSize() + viewportFullWidgetOffset);
         setMaximumWidth(del->maximumSize() + viewportFullWidgetOffset);
     }
     else
     {
         int viewportFullWidgetOffset = size().height() - viewport()->size().height();
         setMinimumHeight(del->minimumSize() + viewportFullWidgetOffset);
         setMaximumHeight(del->maximumSize() + viewportFullWidgetOffset);
     }
 
     setScrollBarPolicy(d->scrollPolicy);
 }
 
 void ImportThumbnailBar::slotSetupChanged()
 {
     setScrollCurrentToCenter(ApplicationSettings::instance()->getScrollItemToCenter());
     setToolTipEnabled(ImportSettings::instance()->showToolTipsIsValid());
     setFont(ImportSettings::instance()->getIconViewFont());
 
     ImportCategorizedView::slotSetupChanged();
 }
 
 void ImportThumbnailBar::assignRating(const QList<QModelIndex>& indexes, int rating)
 {
    QList<QModelIndex> mappedIndexes = importSortFilterModel()->mapListToSource(indexes);
 
    Q_FOREACH (const QModelIndex& index, mappedIndexes)
    {
        if (index.isValid())
        {
             importItemModel()->camItemInfoRef(index).rating = rating;
        }
    }
 }
 
 bool ImportThumbnailBar::event(QEvent* e)
 {
     // reset widget max/min sizes
 
     if ((e->type() == QEvent::StyleChange) || (e->type() == QEvent::Show))
     {
         setFlow(flow());
     }
 
     return ImportCategorizedView::event(e);
 }
 
 QModelIndex ImportThumbnailBar::nextIndex(const QModelIndex& index) const
 {
     return importFilterModel()->index(index.row() + 1, 0);
 }
 
 QModelIndex ImportThumbnailBar::previousIndex(const QModelIndex& index) const
 {
     return importFilterModel()->index(index.row() - 1, 0);
 }
 
 QModelIndex ImportThumbnailBar::firstIndex() const
 {
     return importFilterModel()->index(0, 0);
 }
 
 QModelIndex ImportThumbnailBar::lastIndex() const
 {
     return importFilterModel()->index(importFilterModel()->rowCount() - 1, 0);
 }
 
 } // namespace Digikam
 
 #include "moc_importthumbnailbar.cpp"