pdf: thumbnail API

1 files changed, 17 insertions, 1 deletions

diff --git a/src/cairo-paginated-private.h b/src/cairo-paginated-private.h
index 29eefc76a..b85a5db6b 100644
--- a/src/cairo-paginated-private.h
+++ b/src/cairo-paginated-private.h
@@ -77,7 +77,23 @@ struct _cairo_paginated_surface_backend {
 				     cairo_bool_t    fallbacks_required);
 
     cairo_bool_t
-    (*supports_fine_grained_fallbacks) (void		    *surface);
+    (*supports_fine_grained_fallbacks) (void	    *surface);
+
+    /* Optional. Indicates whether the page requires a thumbnail image to be
+     * supplied. If a thumbnail is required, set width, heigh to size required
+     * and return TRUE.
+     */
+    cairo_bool_t
+    (*requires_thumbnail_image) (void	*surface,
+				 int    *width,
+				 int    *height);
+
+    /* If thumbbail image requested, this function will be called before
+     * _show_page().
+     */
+    cairo_warn cairo_int_status_t
+    (*set_thumbnail_image) (void	          *surface,
+			    cairo_image_surface_t *image);
 };
 
 /* A #cairo_paginated_surface_t provides a very convenient wrapper that