49 lines
753 B
C++
Executable File
49 lines
753 B
C++
Executable File
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#include "RatioAwareLabel.h"
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RatioAwareLabel::RatioAwareLabel(QWidget *parent)
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: QLabel(parent)
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{
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setScaledContents(false);
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}
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void RatioAwareLabel::setPixmap(const QPixmap &pixmap)
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{
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m_pixmap = pixmap;
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scale();
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}
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int RatioAwareLabel::heightRatio(int width) const
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{
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if (m_pixmap.isNull())
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return height();
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return (m_pixmap.height() * width / m_pixmap.width());
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}
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QSize RatioAwareLabel::sizeHint() const
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{
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int w = width();
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return QSize(w, heightRatio(w));
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}
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void RatioAwareLabel::scale()
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{
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if (m_pixmap.isNull())
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return;
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QLabel::setPixmap(m_pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::FastTransformation));
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}
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void RatioAwareLabel::resizeEvent(QResizeEvent *event)
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{
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QLabel::resizeEvent(event);
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scale();
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}
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