refactor(settings-daemon): remove global device pixel ratio setting

settings-daemon/theme/com.cutefish.Theme.xml

@@ -22,9 +22,6 @@
     <method name="setSystemFontPointSize">
         <arg name="fontSize" type="d" direction="in"/>
     </method>
-    <method name="setDevicePixelRatio">
-        <arg name="ratio" type="d" direction="in"/>
-    </method>
     <method name="setWallpaper">
         <arg name="path" type="s" direction="in"/>
     </method>
@@ -57,7 +54,6 @@
     <property name="systemFont" type="s" access="read"/>
     <property name="systemFixedFont" type="s" access="read"/>
     <property name="systemFontPointSize" type="d" access="read"/>
-    <property name="devicePixelRatio" type="d" access="read"/>
     <property name="wallpaper" type="s" access="read"/>
     <property name="accentColor" type="i" access="read"/>
     <property name="backgroundType" type="i" access="read"/>

settings-daemon/theme/thememanager.cpp

@@ -30,7 +30,6 @@
 static const QByteArray s_systemFontName = QByteArrayLiteral("Font");
 static const QByteArray s_systemFixedFontName = QByteArrayLiteral("FixedFont");
 static const QByteArray s_systemPointFontSize = QByteArrayLiteral("FontSize");
-static const QByteArray s_devicePixelRatio = QByteArrayLiteral("PixelRatio");
 
 static QString gtkRc2Path()
 {
@@ -266,45 +265,6 @@ void ThemeManager::setSystemFontPointSize(qreal fontSize)
     emit systemFontPointSizeChanged();
 }
 
-qreal ThemeManager::devicePixelRatio()
-{
-    return m_settings->value(s_devicePixelRatio, 1.0).toReal();
-}
-
-void ThemeManager::setDevicePixelRatio(qreal ratio)
-{
-    ratio = qBound<qreal>(1.0, ratio, 4.0);
-    m_settings->setValue(s_devicePixelRatio, ratio);
-    m_settings->sync();
-
-    updateGtk3Config();
-    applyCursorSettings();
-
-    QProcess p;
-    p.setProgram("pkexec");
-    p.setArguments(QStringList() << "cutefish-sddm-helper"
-                                 << "--scale" << QString::number(ratio));
-    p.start();
-    p.waitForFinished(-1);
-
-    QDBusInterface iface("org.freedesktop.Notifications",
-                         "/org/freedesktop/Notifications",
-                         "org.freedesktop.Notifications",
-                         QDBusConnection::sessionBus());
-    if (iface.isValid()) {
-        QList<QVariant> args;
-        args << "cutefish-settings";
-        args << ((unsigned int) 0);
-        args << "preferences-system";
-        args << "";
-        args << tr("Screen scaling needs to be re-login to take effect");
-        args << QStringList();
-        args << QVariantMap();
-        args << (int) 10;
-        iface.asyncCallWithArgumentList("Notify", args);
-    }
-}
-
 QString ThemeManager::wallpaper()
 {
     return m_wallpaperPath;
@@ -360,7 +320,7 @@ void ThemeManager::updateGtk3Config()
     // icon theme
     settings.setValue("gtk-icon-theme-name", m_iconTheme);
     settings.setValue("gtk-cursor-theme-name", m_cursorTheme);
-    settings.setValue("gtk-cursor-theme-size", qRound(m_cursorSize * devicePixelRatio()));
+    settings.setValue("gtk-cursor-theme-size", m_cursorSize);
     // other
     settings.setValue("gtk-enable-animations", true);
     // theme
@@ -384,8 +344,7 @@ void ThemeManager::applyCursorSettings()
                             QSettings::IniFormat);
     inputSettings.beginGroup(QStringLiteral("Mouse"));
     inputSettings.setValue(QStringLiteral("cursorTheme"), cursorTheme());
-    inputSettings.setValue(QStringLiteral("cursorSize"),
-                           qRound(cursorSize() * devicePixelRatio()));
+    inputSettings.setValue(QStringLiteral("cursorSize"), cursorSize());
     inputSettings.endGroup();
     inputSettings.sync();
 

settings-daemon/theme/thememanager.h

@@ -33,7 +33,6 @@ class ThemeManager : public QObject
     Q_PROPERTY(QString systemFont READ systemFont WRITE setSystemFont NOTIFY systemFontChanged)
     Q_PROPERTY(QString systemFixedFont READ systemFixedFont WRITE setSystemFixedFont)
     Q_PROPERTY(qreal systemFontPointSize READ systemFontPointSize WRITE setSystemFontPointSize NOTIFY systemFontPointSizeChanged)
-    Q_PROPERTY(qreal devicePixelRatio READ devicePixelRatio WRITE setDevicePixelRatio)
     Q_PROPERTY(QString wallpaper READ wallpaper WRITE setWallpaper NOTIFY wallpaperChanged)
     Q_PROPERTY(int accentColor READ accentColor WRITE setAccentColor NOTIFY accentColorChanged)
     Q_PROPERTY(int backgroundType READ backgroundType WRITE setBackgroundType NOTIFY backgroundTypeChanged)
@@ -67,9 +66,6 @@ public:
     qreal systemFontPointSize();
     void setSystemFontPointSize(qreal fontSize);
 
-    qreal devicePixelRatio();
-    void setDevicePixelRatio(qreal ratio);
-
     QString wallpaper();
     void setWallpaper(const QString &path);