textview: use gtk_snapshot_new_with_parent()

As recommended by Timm Bäder at:

https://gitlab.gnome.org/GNOME/gtk/commit/3b959456ac5335639e9642571f59f17ec8ee97f7#note_621655

diff --git a/gtk/gtktextlayout.c b/gtk/gtktextlayout.c
index d7c270a9dc93679642dc94d9ea1a90a3075316cd..7b60b13f3f4befacfafe33aef80dd2b1a727c1f7 100644 (file)
--- a/gtk/gtktextlayout.c
+++ b/gtk/gtktextlayout.c
@@ -86,6 +86,7 @@
 #include "gtktextutil.h"
 #include "gskpango.h"
 #include "gtkintl.h"
+#include "gtksnapshotprivate.h"
 #include "gtkwidgetprivate.h"
 #include "gtktextviewprivate.h"
 
@@ -4153,7 +4154,7 @@ gtk_text_layout_snapshot (GtkTextLayout      *layout,
 
           if (line_display->node == NULL)
             {
-              GtkSnapshot *sub = gtk_snapshot_new ();
+              GtkSnapshot *sub = gtk_snapshot_new_with_parent (snapshot);
 
               crenderer->snapshot = sub;
               render_para (crenderer, 0, line_display,