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launch: ignore QT_STYLE_OVERRIDE and QT_QUICK_CONTROLS_STYLE

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QT_STYLE_OVERRIDE often results in unexpected QML dependencies that
don't exist being required. QT_QUICK_CONTROLS_STYLE can vary across
systems and produce unexpected results.
This commit is contained in:
outfoxxed 2025-07-25 18:24:43 -07:00
parent 4dad447570
commit dfededc901
Signed by untrusted user: outfoxxed
GPG key ID: 4C88A185FB89301E
1 changed files with 7 additions and 0 deletions
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7
src/launch/launch.cpp
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@ -73,6 +73,7 @@ int launch(const LaunchArgs& args, char** argv, QCoreApplication* coreApplicatio
bool useQApplication = false;
bool nativeTextRendering = false;
bool desktopSettingsAware = true;
bool useSystemStyle = false;
QString iconTheme = qEnvironmentVariable("QS_ICON_THEME");
QHash<QString, QString> envOverrides;
QString dataDir;
@ -88,6 +89,7 @@ int launch(const LaunchArgs& args, char** argv, QCoreApplication* coreApplicatio
if (pragma == "UseQApplication") pragmas.useQApplication = true;
else if (pragma == "NativeTextRendering") pragmas.nativeTextRendering = true;
else if (pragma == "IgnoreSystemSettings") pragmas.desktopSettingsAware = false;
else if (pragma == "RespectSystemStyle") pragmas.useSystemStyle = true;
else if (pragma.startsWith("IconTheme ")) pragmas.iconTheme = pragma.sliced(10);
else if (pragma.startsWith("Env ")) {
auto envPragma = pragma.sliced(4);
@ -155,6 +157,11 @@ int launch(const LaunchArgs& args, char** argv, QCoreApplication* coreApplicatio
Common::INITIAL_ENVIRONMENT = QProcessEnvironment::systemEnvironment();
if (!pragmas.useSystemStyle) {
qunsetenv("QT_STYLE_OVERRIDE");
qputenv("QT_QUICK_CONTROLS_STYLE", "Fusion");
}
for (auto [var, val]: pragmas.envOverrides.asKeyValueRange()) {
qputenv(var.toUtf8(), val.toUtf8());
}