Don't scale when using fractional scaling

Author: lenemter

lib/Utils.vala

@@ -486,5 +486,24 @@ namespace Gala {
         public static int calculate_button_size (float monitor_scale) {
             return Utils.scale_to_int (BUTTON_SIZE, monitor_scale);
         }
+
+        private static bool? framebuffer_is_logical = null;
+        public static bool get_framebuffer_is_logical () {
+            if (framebuffer_is_logical != null) {
+                return framebuffer_is_logical;
+            }
+
+            framebuffer_is_logical = false;
+
+            var experimental_features = new Settings ("org.gnome.mutter").get_strv ("experimental-features");
+            for (var i = 0; i < experimental_features.length; i++) {
+                if (experimental_features[i] == "scale-monitor-framebuffer") {
+                    framebuffer_is_logical = true;
+                    break;
+                }
+            }
+
+            return framebuffer_is_logical;
+        }
     }
 }

src/BlurManager.vala

@@ -32,22 +32,13 @@ public class Gala.BlurManager : Object {
 
     public WindowManagerGala wm { get; construct; }
 
-    private bool framebuffer_is_logical = false;
     private GLib.HashTable<Meta.Window, BlurData?> blurred_windows = new GLib.HashTable<Meta.Window, BlurData?> (null, null);
 
     private BlurManager (WindowManagerGala wm) {
         Object (wm: wm);
     }
 
     construct {
-        var experimental_features = new Settings ("org.gnome.mutter").get_strv ("experimental-features");
-        for (var i = 0; i < experimental_features.length; i++) {
-            if (experimental_features[i] == "scale-monitor-framebuffer") {
-                framebuffer_is_logical = true;
-                break;
-            }
-        }
-
         wm.get_display ().window_created.connect ((window) => {
             window.notify["mutter-hints"].connect ((obj, pspec) => parse_mutter_hints ((Meta.Window) obj));
             parse_mutter_hints (window);
@@ -83,7 +74,7 @@ public class Gala.BlurManager : Object {
         var x_shadow_size = frame_rect.x - buffer_rect.x;
         var y_shadow_size = frame_rect.y - buffer_rect.y;
 
-        var monitor_scale = framebuffer_is_logical ? 1.0f : window.display.get_monitor_scale (window.get_monitor ());
+        var monitor_scale = Utils.get_framebuffer_is_logical () ? 1.0f : window.display.get_monitor_scale (window.get_monitor ());
         var inverse_monitor_scale = 1.0f / monitor_scale;
 
         blur_data.actor.set_position (

src/Widgets/MultitaskingView/Tooltip.vala

@@ -43,7 +43,11 @@ public class Gala.Tooltip : Clutter.Actor {
     }
 
     private static bool transform_monitor_scale_to_margin (Binding binding, Value from_value, ref Value to_value) {
-        to_value.set_float (Utils.scale_to_int (TEXT_MARGIN, from_value.get_float ()));
+        to_value.set_float (
+            Utils.get_framebuffer_is_logical ()
+            ? TEXT_MARGIN
+            : Utils.scale_to_int (TEXT_MARGIN, from_value.get_float ())
+        );
         return true;
     }
 }