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Use QPlatformScreen::logicalDpi instead of QScreen::logicalDotsPerInch

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QScreen::logicalDotsPerInch can be overriden by QT_FONT_DPI what is not good
This commit is contained in:
Ilya Fedin 2021-11-03 17:26:22 +04:00 • committed by John Preston
parent f882a0f407
commit 9a4b8cdd82
1 changed files with 6 additions and 1 deletions
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7
Telegram/SourceFiles/core/sandbox.cpp
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@ -31,6 +31,7 @@ https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
#include <QtGui/QSessionManager>
#include <QtGui/QScreen>
#include <qpa/qplatformscreen.h>
namespace Core {
namespace {
@ -183,7 +184,11 @@ void Sandbox::launchApplication() {
}
void Sandbox::setupScreenScale() {
const auto dpi = Sandbox::primaryScreen()->logicalDotsPerInch();
const auto processDpi = [](const QDpi &dpi) {
return (dpi.first + dpi.second) * qreal(0.5);
};
const auto dpi = processDpi(
Sandbox::primaryScreen()->handle()->logicalDpi());
LOG(("Primary screen DPI: %1").arg(dpi));
if (dpi <= 108) {
cSetScreenScale(100); // 100%: 96 DPI (0-108)