[gtk/wip/chergert/fix-broadway-build] inspector: fix compilation with broadway

[Christian Hergert <chergert src gnome org>]

commit 352898ae9ef91fd1d284844cd2fdaa00e632c570
Author: Christian Hergert <chergert redhat com>
Date:   Thu Jun 17 11:40:10 2021 -0700

    inspector: fix compilation with broadway

 gdk/broadway/gdkbroadwaydisplay.h  |  2 ++
 gdk/broadway/gdkdisplay-broadway.c | 23 +++++++++++++++++++++++
 gtk/inspector/visual.c             |  4 ++--
 3 files changed, 27 insertions(+), 2 deletions(-)
---
diff --git a/gdk/broadway/gdkbroadwaydisplay.h b/gdk/broadway/gdkbroadwaydisplay.h
index 79e78c9a62..767b8b8a9d 100644
--- a/gdk/broadway/gdkbroadwaydisplay.h
+++ b/gdk/broadway/gdkbroadwaydisplay.h
@@ -48,6 +48,8 @@ void                    gdk_broadway_display_show_keyboard       (GdkBroadwayDis
 GDK_AVAILABLE_IN_ALL
 void                    gdk_broadway_display_hide_keyboard       (GdkBroadwayDisplay *display);
 
+GDK_AVAILABLE_IN_4_4
+int                     gdk_broadway_display_get_surface_scale   (GdkDisplay *display);
 GDK_AVAILABLE_IN_4_4
 void                    gdk_broadway_display_set_surface_scale   (GdkDisplay *display,
                                                                   int         scale);
diff --git a/gdk/broadway/gdkdisplay-broadway.c b/gdk/broadway/gdkdisplay-broadway.c
index 29f2256323..a8ebb1dc88 100644
--- a/gdk/broadway/gdkdisplay-broadway.c
+++ b/gdk/broadway/gdkdisplay-broadway.c
@@ -361,6 +361,29 @@ gdk_broadway_display_set_surface_scale (GdkDisplay *display,
   gdk_monitor_set_scale_factor (self->monitor, scale);
 }
 
+/**
+ * gdk_broadway_display_get_surface_scale:
+ * @display: (type GdkBroadwayDisplay): the display
+ *
+ * Gets the surface scale that was previously set by the client or
+ * gdk_broadway_display_set_surface_scale().
+ *
+ * Returns: the scale for surfaces
+ *
+ * Since: 4.4
+ */
+int
+gdk_broadway_display_get_surface_scale (GdkDisplay *display)
+{
+  GdkBroadwayDisplay *self;
+
+  g_return_val_if_fail (GDK_IS_BROADWAY_DISPLAY (display), 1);
+
+  self = GDK_BROADWAY_DISPLAY (display);
+
+  return self->scale_factor;
+}
+
 static GListModel *
 gdk_broadway_display_get_monitors (GdkDisplay *display)
 {
diff --git a/gtk/inspector/visual.c b/gtk/inspector/visual.c
index a328b81c6d..04351bafc9 100644
--- a/gtk/inspector/visual.c
+++ b/gtk/inspector/visual.c
@@ -835,9 +835,9 @@ init_scale (GtkInspectorVisual *vis)
 #if defined (GDK_WINDOWING_BROADWAY)
   if (GDK_IS_BROADWAY_DISPLAY (vis->display))
     {
-      double scale;
+      int scale;
 
-      scale = gdk_monitor_get_scale_factor (gdk_x11_display_get_primary_monitor (vis->display));
+      scale = gdk_broadway_display_get_surface_scale (vis->display);
       gtk_adjustment_set_value (vis->scale_adjustment, scale);
       g_signal_connect (vis->scale_adjustment, "value-changed",
                         G_CALLBACK (scale_changed), vis);