File indexing completed on 2025-01-05 03:59:54

 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2007-09-06
  * Description : a widget to display camera capture preview.
  *
  * SPDX-FileCopyrightText: 2007-2024 by Gilles Caulier <caulier dot gilles at gmail dot com>
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  *
  * ============================================================ */
 
 #include "capturewidget.h"
 
 // Qt includes
 
 #include <QPainter>
 #include <QImage>
 #include <QPixmap>
 #include <QRect>
 
 // KDE includes
 
 #include <klocalizedstring.h>
 
 namespace Digikam
 {
 
 class Q_DECL_HIDDEN CaptureWidget::Private
 {
 public:
 
     explicit Private()
     {
     }
 
     QPixmap pixmap;
     QImage  preview;
 };
 
 CaptureWidget::CaptureWidget(QWidget* const parent)
     : QWidget(parent),
       d      (new Private)
 {
     setAttribute(Qt::WA_DeleteOnClose);
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 }
 
 CaptureWidget::~CaptureWidget()
 {
     delete d;
 }
 
 void CaptureWidget::setPreview(const QImage& preview)
 {
     d->preview = preview;
     d->pixmap  = QPixmap(contentsRect().size());
 
     updatePixmap();
     repaint();
 }
 
 void CaptureWidget::updatePixmap()
 {
     d->pixmap.fill(palette().window().color());
     QPainter p(&(d->pixmap));
 
     if (!d->preview.isNull())
     {
         QPixmap pix = QPixmap::fromImage(d->preview.scaled(contentsRect().size(),
                                                            Qt::KeepAspectRatio, Qt::SmoothTransformation));
         p.drawPixmap((contentsRect().width()  - pix.width())  / 2,
                      (contentsRect().height() - pix.height()) / 2, pix,
                      0, 0, pix.width(), pix.height());
     }
     else
     {
         p.setPen(QPen(palette().text().color()));
         p.drawText(0, 0, d->pixmap.width(), d->pixmap.height(),
                    Qt::AlignCenter | Qt::TextWordWrap,
                    i18n("Cannot display camera preview"));
     }
 
     p.end();
 }
 
 void CaptureWidget::paintEvent(QPaintEvent*)
 {
     QPainter p(this);
     p.drawPixmap(contentsRect().top(), contentsRect().left(), d->pixmap);
     p.end();
 }
 
 void CaptureWidget::resizeEvent(QResizeEvent*)
 {
     blockSignals(true);
     d->pixmap = QPixmap(contentsRect().size());
     updatePixmap();
     repaint();
     blockSignals(false);
 }
 
 } // namespace Digikam
 
 #include "moc_capturewidget.cpp"