Files
o3de/Code/Editor/QtUI/PixmapLabelPreview.cpp
T
Steve Pham b4a2edec6a Final update copyright headers to reference license files at the repo root (#1693)
* Final update copyright headers to reference license files at the repo root

Signed-off-by: spham <spham@amazon.com>

* Fix copyright validator unit tests to support the stale O3DE header scenario

Signed-off-by: spham <spham@amazon.com>
2021-06-30 19:51:55 -07:00

59 lines
1.2 KiB
C++

/*
* 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.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#include "EditorDefs.h"
#include "PixmapLabelPreview.h"
PixmapLabelPreview::PixmapLabelPreview(QWidget* parent)
: QLabel(parent)
, m_mode(Qt::IgnoreAspectRatio)
{
this->setMinimumSize(10, 10);
}
void PixmapLabelPreview::setPixmap(const QPixmap& p)
{
m_pixmap = p;
QLabel::setPixmap(transformPixmap(p));
}
int PixmapLabelPreview::heightForWidth(int width) const
{
if (m_mode == Qt::KeepAspectRatio)
{
return width;
}
return ((qreal)m_pixmap.height() * width) / m_pixmap.width();
}
QSize PixmapLabelPreview::sizeHint() const
{
int w = this->width();
return QSize(w, heightForWidth(w));
}
void PixmapLabelPreview::setAspectRatioMode(Qt::AspectRatioMode mode)
{
m_mode = mode;
}
void PixmapLabelPreview::resizeEvent([[maybe_unused]] QResizeEvent* e)
{
QLabel::setPixmap(transformPixmap(m_pixmap));
}
QPixmap PixmapLabelPreview::transformPixmap(QPixmap pix)
{
return pix.scaled(this->size(), m_mode, Qt::SmoothTransformation);
}
#include <QtUI/moc_PixmapLabelPreview.cpp>