File add-threshold-to-disable-avatars.patch of Package sddm.openSUSE_Backports_SLE-12-SP1

Index: sddm-0.13.0/src/greeter/UserModel.cpp
===================================================================
--- sddm-0.13.0.orig/src/greeter/UserModel.cpp
+++ sddm-0.13.0/src/greeter/UserModel.cpp
@@ -51,6 +51,9 @@ namespace SDDM {
     };
 
     UserModel::UserModel(QObject *parent) : QAbstractListModel(parent), d(new UserModelPrivate()) {
+        const QString facesDir = mainConfig.Theme.FacesDir.get();
+        const QString defaultFace = QStringLiteral("%1/.face.icon").arg(facesDir);
+
         struct passwd *current_pw;
         while ((current_pw = getpwent()) != nullptr) {
 
@@ -81,23 +84,7 @@ namespace SDDM {
             user->needsPassword = strcmp(current_pw->pw_passwd, "") != 0;
 
             // search for face icon
-            QString facesDir = mainConfig.Theme.FacesDir.get();
-            QString defaultFace = QStringLiteral("%1/.face.icon").arg(facesDir);
-            bool avatarsEnabled = mainConfig.Theme.EnableAvatars.get();
-
-            if (avatarsEnabled) {
-                QString userFace = QStringLiteral("%1/.face.icon").arg(user->homeDir);
-                QString systemFace = QStringLiteral("%1/%2.face.icon").arg(facesDir).arg(user->name);
-
-                if (QFile::exists(userFace))
-                    user->icon = userFace;
-                else if (QFile::exists(systemFace))
-                    user->icon = systemFace;
-                else
-                    user->icon = defaultFace;
-            } else {
-                user->icon = defaultFace;
-            }
+            user->icon = defaultFace;
 
             // add user
             d->users << user;
@@ -108,10 +95,26 @@ namespace SDDM {
         // sort users by username
         std::sort(d->users.begin(), d->users.end(), [&](const UserPtr &u1, const UserPtr &u2) { return u1->name < u2->name; });
 
+        bool avatarsEnabled = mainConfig.Theme.EnableAvatars.get();
+        if (avatarsEnabled && mainConfig.Theme.EnableAvatars.isDefault()) {
+            if (d->users.count() > mainConfig.Theme.DisableAvatarsThreshold.get()) avatarsEnabled=false;
+        }
+
         // find out index of the last user
         for (int i = 0; i < d->users.size(); ++i) {
-            if (d->users.at(i)->name == stateConfig.Last.User.get())
+            UserPtr user { d->users.at(i) };
+            if (user->name == stateConfig.Last.User.get())
                 d->lastIndex = i;
+
+            if (avatarsEnabled) {
+                const QString userFace = QStringLiteral("%1/.face.icon").arg(user->homeDir);
+                const QString systemFace = QStringLiteral("%1/%2.face.icon").arg(facesDir).arg(user->name);
+
+                if (QFile::exists(userFace))
+                    user->icon = userFace;
+                else if (QFile::exists(systemFace))
+                    user->icon = systemFace;
+            }
         }
     }
 
@@ -165,4 +168,8 @@ namespace SDDM {
         // return empty value
         return QVariant();
     }
+
+    int UserModel::disableAvatarsThreshold() const {
+        return mainConfig.Theme.DisableAvatarsThreshold.get();
+    }
 }
Index: sddm-0.13.0/src/common/Configuration.h
===================================================================
--- sddm-0.13.0.orig/src/common/Configuration.h
+++ sddm-0.13.0/src/common/Configuration.h
@@ -50,6 +50,9 @@ namespace SDDM {
                                                                                                    "The files should be in username.face.icon format"));
             Entry(CursorTheme,         QString,     QString(),                                  _S("Cursor theme"));
             Entry(EnableAvatars,       bool,        true,                                       _S("Enable display of custom user avatars"));
+            Entry(DisableAvatarsThreshold,int,      7,                                          _S("Number of users to use as threshold\n"
+                                                                                                   "above which avatars are disabled\n"
+                                                                                                   "unless explicitly enabled with EnableAvatars"));
         );
         // TODO: Not absolutely sure if everything belongs here. Xsessions, VT and probably some more seem universal
         Section(XDisplay,
Index: sddm-0.13.0/src/greeter/UserModel.h
===================================================================
--- sddm-0.13.0.orig/src/greeter/UserModel.h
+++ sddm-0.13.0/src/greeter/UserModel.h
@@ -33,6 +33,7 @@ namespace SDDM {
         Q_PROPERTY(int lastIndex READ lastIndex CONSTANT)
         Q_PROPERTY(QString lastUser READ lastUser CONSTANT)
         Q_PROPERTY(int count READ rowCount CONSTANT)
+        Q_PROPERTY(int disableAvatarsThreshold READ disableAvatarsThreshold CONSTANT)
     public:
         enum UserRoles {
             NameRole = Qt::UserRole + 1,
@@ -53,6 +54,7 @@ namespace SDDM {
         int rowCount(const QModelIndex &parent = QModelIndex()) const override;
         QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
 
+        int disableAvatarsThreshold() const;
     private:
         UserModelPrivate *d { nullptr };
     };