alexpete
98 lines
2.7 KiB
C++
98 lines
2.7 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include "ExtendedLabel.h"
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AZ_PUSH_DISABLE_WARNING(4251 4244, "-Wunknown-warning-option") // 4251: 'QVariant::d': struct 'QVariant::Private' needs to have dll-interface to be used by clients of class 'QVariant'
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#include <QVariant>
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AZ_POP_DISABLE_WARNING
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namespace AzQtComponents
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{
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ExtendedLabel::ExtendedLabel(QWidget* parent)
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: QLabel(parent)
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{
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}
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void ExtendedLabel::setPixmap(const QPixmap& p)
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{
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m_pix = p;
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rescale();
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}
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void ExtendedLabel::resizeEvent(QResizeEvent* /*event*/)
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{
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rescale();
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}
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void ExtendedLabel::rescale()
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{
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if (!m_pix.isNull())
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{
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setAlignment(Qt::AlignCenter);
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int realWidth;
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int realHeight;
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m_pixmapSize = property("pixmapSize").toSize();
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if (m_pixmapSize.isValid())
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{
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realWidth = qMin(m_pixmapSize.width(), this->width());
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realHeight = qMin(m_pixmapSize.height(), this->height());
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}
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else
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{
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realWidth = this->width();
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realHeight = this->height();
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}
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double aspectRatioExpected = aspectRatio(
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realWidth,
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realHeight);
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double aspectRatioSource = aspectRatio(
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m_pix.width(),
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m_pix.height());
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//use the one that fits
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if (aspectRatioExpected > aspectRatioSource)
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{
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QLabel::setPixmap(m_pix.scaledToHeight(realHeight));
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}
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else
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{
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QLabel::setPixmap(m_pix.scaledToWidth(realWidth));
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}
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}
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}
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double ExtendedLabel::aspectRatio(int w, int h)
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{
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return static_cast<double>(w) / static_cast<double>(h);
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}
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int ExtendedLabel::heightForWidth(int width) const
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{
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if (!m_pix.isNull())
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{
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return static_cast<int>(static_cast<qreal>(m_pix.height()) * width / m_pix.width());
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}
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return QLabel::heightForWidth(width);
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}
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void ExtendedLabel::mousePressEvent(QMouseEvent* /*event*/)
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{
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emit clicked();
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}
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} // namespace AzQtComponents
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#include "Components/moc_ExtendedLabel.cpp"
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