File indexing completed on 2025-01-05 03:58:31

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2010-03-22
  * Description : A model for the view to display a list of items.
  *
  * SPDX-FileCopyrightText: 2010-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  * SPDX-FileCopyrightText: 2010      by Michael G. Hansen <mike at mghansen dot de>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "gpsitemdelegate.h"
 
 // Qt includes
 
 
 #include <QPainter>
 #include <QIcon>
 
 // Local includes
 
 #include "digikam_debug.h"
 
 namespace Digikam
 {
 
 class Q_DECL_HIDDEN GPSItemDelegate::Private
 {
 public:
 
     explicit Private()
       : imageList    (nullptr),
         thumbnailSize(60)
     {
     }
 
     GPSItemList* imageList;
     int          thumbnailSize;
 };
 
 GPSItemDelegate::GPSItemDelegate(GPSItemList* const imageList, QObject* const parent)
     : QItemDelegate(parent),
       d            (new Private())
 {
     d->imageList = imageList;
 }
 
 GPSItemDelegate::~GPSItemDelegate()
 {
     delete d;
 }
 
 void GPSItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& option, const QModelIndex& sortMappedindex) const
 {
     if (sortMappedindex.column() != GPSItemContainer::ColumnThumbnail)
     {
         QItemDelegate::paint(painter, option, sortMappedindex);
 
         return;
     }
 
     const QModelIndex& sourceModelIndex = d->imageList->getSortProxyModel()->mapToSource(sortMappedindex);
 
     if (option.state & QStyle::State_Selected)
     {
         painter->fillRect(option.rect, option.palette.highlight());
     }
 
     // TODO: clipping, selected state, disabled state, etc.
 
     QPixmap itemPixmap = d->imageList->getModel()->getPixmapForIndex(sourceModelIndex, d->thumbnailSize);
 
     if (itemPixmap.isNull())
     {
         // TODO: paint some default logo
         // TODO: cache this logo
 
         itemPixmap = QIcon::fromTheme(QLatin1String("view-preview"))
                                       .pixmap(d->thumbnailSize, QIcon::Disabled);
     }
 
     const QSize availableSize = option.rect.size();
     const QSize pixmapSize    = itemPixmap.size().boundedTo(availableSize);
     QPoint startPoint((availableSize.width()  - pixmapSize.width())  / 2,
                       (availableSize.height() - pixmapSize.height()) / 2);
     startPoint               += option.rect.topLeft();
     painter->drawPixmap(QRect(startPoint, pixmapSize), itemPixmap, QRect(QPoint(0, 0), pixmapSize));
 }
 
 QSize GPSItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& sortMappedindex) const
 {
     if (sortMappedindex.column() == GPSItemContainer::ColumnThumbnail)
     {
         return QSize(d->thumbnailSize, d->thumbnailSize);
     }
 
     const QSize realSizeHint = QItemDelegate::sizeHint(option, sortMappedindex);
 
     return QSize(realSizeHint.width(), d->thumbnailSize);
 }
 
 void GPSItemDelegate::setThumbnailSize(const int size)
 {
     d->thumbnailSize               = size;
     GPSItemModel* const imageModel = d->imageList->getModel();
 
     if (!imageModel)
     {
         return;
     }
 
     if (imageModel->rowCount() > 0)
     {
         // TODO: is it enough to Q_EMIT this signal for only 1 item?
         // seems to work in Qt4.5 with QTreeView::setUniformRowHeights(true)
 
         Q_EMIT sizeHintChanged(imageModel->index(0, 0));
     }
 }
 
 int GPSItemDelegate::getThumbnailSize() const
 {
     return d->thumbnailSize;
 }
 
 } // namespace Digikam
 
 #include "moc_gpsitemdelegate.cpp"