[gtk/matthiasc/for-master: 6/7] gtk-demo: Add alternative text to a GtkPicture

[Matthias Clasen <matthiasc src gnome org>]

commit 17852ecfdc12586025ca6185e9be853f0fcdc466
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Oct 22 00:05:50 2020 -0400

    gtk-demo: Add alternative text to a GtkPicture
    
    This lets us text GtkPicture a11y support.

 demos/gtk-demo/images.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/demos/gtk-demo/images.c b/demos/gtk-demo/images.c
index 43d138101c..e13302eb53 100644
--- a/demos/gtk-demo/images.c
+++ b/demos/gtk-demo/images.c
@@ -414,6 +414,7 @@ do_images (GtkWidget *do_widget)
        * will create the pixbuf and fill it in.
        */
       picture = gtk_picture_new ();
+      gtk_picture_set_alternative_text (GTK_PICTURE (picture), "A slowly loading image");
       gtk_frame_set_child (GTK_FRAME (frame), picture);
 
       start_progressive_loading (picture);