[balsa/wip/gtk4: 42/351] Export cairo_print_surface

[Peter Bloomfield <peterb src gnome org>]

commit db1f7e2357e1b79dc5313a95db6c62b9516f5ce5
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Tue Oct 24 12:49:02 2017 -0400

    Export cairo_print_surface

 src/balsa-print-object.c |    1 -
 src/balsa-print-object.h |    2 ++
 2 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/balsa-print-object.c b/src/balsa-print-object.c
index 11ff43e..7b14651 100644
--- a/src/balsa-print-object.c
+++ b/src/balsa-print-object.c
@@ -446,7 +446,6 @@ cairo_print_pixbuf(cairo_t * cairo_ctx, const cairo_surface_t * surface,
 {
     gint width;
     gint height;
-    gint rowstride;
     guint32 *dest;
     cairo_format_t format;
     cairo_surface_t *surface;
diff --git a/src/balsa-print-object.h b/src/balsa-print-object.h
index 4216287..a745b77 100644
--- a/src/balsa-print-object.h
+++ b/src/balsa-print-object.h
@@ -60,6 +60,8 @@ gint p_string_width_from_layout(PangoLayout * layout, const gchar * text);
 gint p_string_height_from_layout(PangoLayout * layout, const gchar * text);
 gboolean cairo_print_pixbuf(cairo_t * cairo_ctx, const GdkPixbuf * pixbuf,
                            gdouble c_at_x, gdouble c_at_y, gdouble scale);
+gboolean cairo_print_surface(cairo_t * cairo_ctx, const cairo_surface_t * surface,
+                            gdouble c_at_x, gdouble c_at_y, gdouble scale);
 GList *split_for_layout(PangoLayout * layout, const gchar * text,
                        PangoAttrList * attributes,
                        BalsaPrintSetup * psetup, gboolean is_header,