File indexing completed on 2024-04-28 15:39:06

 // SPDX-FileCopyrightText: 2020 Tobias Leupold <tl at stonemx dot de>
 //
 // SPDX-License-Identifier: GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
 // Local includes
 #include "ImagePreview.h"
 #include "SharedObjects.h"
 
 // Qt includes
 #include <QTimer>
 #include <QModelIndex>
 
 ImagePreview::ImagePreview(QWidget *parent) : QLabel(parent)
 {
     setAlignment(Qt::AlignCenter);
     setMinimumSize(128, 128);
     setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
 
     m_smoothTimer = new QTimer(this);
     m_smoothTimer->setSingleShot(true);
     connect(m_smoothTimer, &QTimer::timeout, this, &ImagePreview::setScaledPreview);
 }
 
 void ImagePreview::setImage(const QModelIndex &index)
 {
     m_currentImage = index.isValid() ? index.data(KGeoTag::PreviewRole).value<QImage>() : QImage();
     setScaledPreview();
 }
 
 void ImagePreview::resizeEvent(QResizeEvent *event)
 {
     // This happen when no image is set yet
     if (m_currentImage.isNull()) {
         return;
     }
 
     // During resizing, we use a quickly scaled image
     const QImage scaledImage = m_currentImage.scaled(size(), Qt::KeepAspectRatio);
     setPixmap(QPixmap::fromImage(scaledImage));
 
     // (Re)start the timer that sets a smoothly scaled version of the image
     m_smoothTimer->start(200);
 
     QLabel::resizeEvent(event);
 }
 
 void ImagePreview::setScaledPreview()
 {
     if (m_currentImage.isNull()) {
         setPixmap(QPixmap());
         return;
     }
 
     const QImage scaledImage = m_currentImage.scaled(size(), Qt::KeepAspectRatio,
                                                      Qt::SmoothTransformation);
     setPixmap(QPixmap::fromImage(scaledImage));
 }