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Enable HiDPI Scaling (Qt 5.6+ only) #3813

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Enable HiDPI Scaling (Qt 5.6+ only) #3813

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7d83773
Enable HiDpi Scaling in GuiApplication.cpp
flynn16 Sep 19, 2017
af8b384
Added Environment Variable to Force Scaling
flynn16 Sep 19, 2017
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2 changes: 1 addition & 1 deletion cmake/linux/lmms.desktop
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Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ Comment[ca]=Producció fàcil de música per a tothom!
Comment[fr]=Production facile de musique pour tout le monde !
Comment[pl]=Prosta produkcja muzyki dla każdego!
Icon=lmms
Exec=env QT_X11_NO_NATIVE_MENUBAR=1 lmms %f
Exec=env QT_X11_NO_NATIVE_MENUBAR=1 QT_AUTO_SCREEN_SCALE_FACTOR=1 lmms %f
Terminal=false
Type=Application
Categories=Qt;AudioVideo;Audio;Midi;
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6 changes: 6 additions & 0 deletions src/gui/GuiApplication.cpp
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Expand Up @@ -40,6 +40,7 @@
#include "SongEditor.h"

#include <QApplication>
#include <QtGlobal>
#include <QDir>
#include <QMessageBox>
#include <QSplashScreen>
Expand All @@ -54,6 +55,11 @@ GuiApplication* GuiApplication::instance()

GuiApplication::GuiApplication()
{
// enable HiDPI scaling before showing anything (Qt 5.6+ only)
#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
QApplication::setAttribute(Qt::AA_EnableHighDpiScaling, true);
#endif

// prompt the user to create the LMMS working directory (e.g. ~/lmms) if it doesn't exist
if ( !ConfigManager::inst()->hasWorkingDir() &&
QMessageBox::question( NULL,
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