[gnome-font-viewer] Allow to see all sizes in the waterfall

[Matthias Clasen <matthiasc src gnome org>]

commit 5fefc6b7103d4fcb3b84e00b1bd74d7d4ca7534b
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Jan 18 21:44:52 2018 -0500

    Allow to see all sizes in the waterfall
    
    The current situation is a bit weird, we allow horizontal
    scrolling, but not vertical, and the big sizes that make
    the view very wide are hidden behind the 'horizon'. Allow
    scrolling vertically as well.

 src/font-view.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/src/font-view.c b/src/font-view.c
index ed9f0a0..4ed5aa3 100644
--- a/src/font-view.c
+++ b/src/font-view.c
@@ -847,8 +847,13 @@ font_view_application_do_open (FontViewApplication *self,
     uri = g_file_get_uri (file);
 
     if (self->font_widget == NULL) {
+        GtkWidget *viewport;
+
         self->font_widget = GTK_WIDGET (sushi_font_widget_new (uri, face_index));
         gtk_container_add (GTK_CONTAINER (self->swin_preview), self->font_widget);
+        viewport = gtk_widget_get_parent (self->font_widget);
+        gtk_scrollable_set_hscroll_policy (GTK_SCROLLABLE (viewport), GTK_SCROLL_NATURAL);
+        gtk_scrollable_set_vscroll_policy (GTK_SCROLLABLE (viewport), GTK_SCROLL_NATURAL);
 
         g_signal_connect (self->font_widget, "loaded",
                           G_CALLBACK (font_widget_loaded_cb), self);
@@ -1138,7 +1143,7 @@ ensure_window (FontViewApplication *self)
 
     self->swin_preview = swin = gtk_scrolled_window_new (NULL, NULL);
     gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (swin),
-                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_NEVER);
+                                   GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
     gtk_stack_add_named (GTK_STACK (self->stack), swin, "preview");
 
     gtk_widget_show_all (window);