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-rw-r--r--libdocument/ev-document-misc.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/libdocument/ev-document-misc.c b/libdocument/ev-document-misc.c
index e59eb354..c530018e 100644
--- a/libdocument/ev-document-misc.c
+++ b/libdocument/ev-document-misc.c
@@ -376,6 +376,11 @@ ev_document_misc_get_screen_dpi (GdkScreen *screen, gint monitor)
{
gdouble dp, di;
gint sc_width, sc_height;
+#if GTK_CHECK_VERSION (3, 22, 0)
+ GdkMonitor *monitor_id;
+
+ monitor_id = gdk_display_get_monitor (gdk_screen_get_display (screen), monitor);
+#endif
gdk_window_get_geometry (gdk_screen_get_root_window (screen), NULL, NULL,
&sc_width, &sc_height);
@@ -384,7 +389,11 @@ ev_document_misc_get_screen_dpi (GdkScreen *screen, gint monitor)
dp = hypot (sc_width, sc_height);
/*diagonal in inches*/
+#if GTK_CHECK_VERSION (3, 22, 0)
+ di = hypot (gdk_monitor_get_width_mm(monitor_id), gdk_monitor_get_height_mm (monitor_id)) / 25.4;
+#else
di = hypot (gdk_screen_get_width_mm(screen), gdk_screen_get_height_mm (screen)) / 25.4;
+#endif
#ifdef HAVE_HIDPI_SUPPORT
di /= gdk_screen_get_monitor_scale_factor(screen, monitor);