psppire-output-window: Insert a half-line of space between output items.

Before, the lack of table titles put some vertical space into the output
window.  Now that table titles are shown, there's no white space left, so
this commit reintroduces some by putting half a line of vertical white
space between output items.

diff --git a/src/ui/gui/psppire-output-window.c b/src/ui/gui/psppire-output-window.c
index 4bf8ce5b287918488249cd7df3af47448047d89d..658d36a4669f7d9aecb236a25214678ead7f4444 100644 (file)
--- a/src/ui/gui/psppire-output-window.c
+++ b/src/ui/gui/psppire-output-window.c
@@ -149,6 +149,7 @@ struct psppire_output_driver
     struct output_driver driver;
     PsppireOutputWindow *viewer;
     struct xr_driver *xr;
+    int font_height;
   };
 
 static struct output_driver_class psppire_output_class;
@@ -222,8 +223,10 @@ psppire_output_submit (struct output_driver *this,
     {
       const GtkStyle *style = gtk_widget_get_style (GTK_WIDGET (viewer));
       struct string_map options = STRING_MAP_INITIALIZER (options);
+      struct text_item *text_item;
       PangoFontDescription *font_desc;
       char *font_name;
+      int font_width;
 
       /* Use GTK+ default font as proportional font. */
       font_name = pango_font_description_to_string (style->font_desc);
@@ -252,7 +255,15 @@ psppire_output_submit (struct output_driver *this,
       pod->xr = xr_driver_create (cr, &options);
 
       string_map_destroy (&options);
+
+      text_item = text_item_create (TEXT_ITEM_PARAGRAPH, "X");
+      r = xr_rendering_create (pod->xr, text_item_super (text_item), cr);
+      xr_rendering_measure (r, &font_width, &pod->font_height);
+      /* xr_rendering_destroy (r); */
+      text_item_unref (text_item);
     }
+  else
+    pod->viewer->y += pod->font_height / 2;
 
   r = xr_rendering_create (pod->xr, item, cr);
   if (r == NULL)