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#pragma once
#include <algorithm>
#include <QWidget>
static inline double screen_dpi(const QPaintDevice* widget)
{
const auto& x = *widget;
#ifdef _WIN32
return std::max(x.devicePixelRatioF(), 1.);
#else
return std::max(std::max(x.logicalDpiX()/(double)x.physicalDpiX(), x.devicePixelRatioF()), 1.);
#endif
}
template<typename self>
struct screen_dpi_mixin
{
protected:
double screen_dpi() const
{
return ::screen_dpi(static_cast<const self*>(this));
}
};
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