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59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project. For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#include "EditorDefs.h"
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#include "PixmapLabelPreview.h"
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PixmapLabelPreview::PixmapLabelPreview(QWidget* parent)
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: QLabel(parent)
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, m_mode(Qt::IgnoreAspectRatio)
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{
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this->setMinimumSize(10, 10);
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}
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void PixmapLabelPreview::setPixmap(const QPixmap& p)
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{
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m_pixmap = p;
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QLabel::setPixmap(transformPixmap(p));
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}
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int PixmapLabelPreview::heightForWidth(int width) const
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{
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if (m_mode == Qt::KeepAspectRatio)
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{
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return width;
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}
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return ((qreal)m_pixmap.height() * width) / m_pixmap.width();
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}
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QSize PixmapLabelPreview::sizeHint() const
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{
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int w = this->width();
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return QSize(w, heightForWidth(w));
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}
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void PixmapLabelPreview::setAspectRatioMode(Qt::AspectRatioMode mode)
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{
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m_mode = mode;
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}
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void PixmapLabelPreview::resizeEvent([[maybe_unused]] QResizeEvent* e)
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{
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QLabel::setPixmap(transformPixmap(m_pixmap));
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}
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QPixmap PixmapLabelPreview::transformPixmap(QPixmap pix)
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{
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return pix.scaled(this->size(), m_mode, Qt::SmoothTransformation);
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}
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#include <QtUI/moc_PixmapLabelPreview.cpp>
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