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add auto scale

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This commit is contained in:
vaxerski
2022-12-14 17:57:18 +00:00
parent f8188ed7f8
commit 374571da96
4 changed files with 35 additions and 6 deletions
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18
src/helpers/Monitor.cpp
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@@ -394,3 +394,21 @@ void CMonitor::setMirror(const std::string& mirrorOf) {
g_pCompositor->setActiveMonitor(g_pCompositor->m_vMonitors.front().get());
}
}
float CMonitor::getDefaultScale() {
if (!m_bEnabled)
return 1;
static constexpr double MMPERINCH = 25.4;
const auto DIAGONALPX = sqrt(pow(vecPixelSize.x, 2) + pow(vecPixelSize.y, 2));
const auto DIAGONALIN = sqrt(pow(output->phys_width / MMPERINCH, 2) + pow(output->phys_height / MMPERINCH, 2));
const auto PPI = DIAGONALPX / DIAGONALIN;
if (PPI > 200 /* High PPI, 2x*/)
return 2;
else if (PPI > 125 /* Medium PPI, 1.5x*/)
return 1.5;
return 1;
}