[glabels] Added sanity tests to template parser

[Jim Evins <jimevins src gnome org>]

commit 206b483f611441d18db5360800975f2f0d35014b
Author: Jim Evins <evins snaught com>
Date:   Wed May 5 20:16:26 2010 -0400

    Added sanity tests to template parser
    
    When parsing a template node, if there is no recognized frame node (e.g.
    Label-rectangle), a default full-page frame with a 1x1 layout is created.
    Likewise, if a frame has no layout, a default 1x1 layout is created.
    This prevents potential crashes due to typos in the case of typos in
    hand generated templates.

 libglabels/str.c          |    2 +-
 libglabels/xml-template.c |   23 +++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletions(-)
---
diff --git a/libglabels/str.c b/libglabels/str.c
index b0b7145..f206b2f 100644
--- a/libglabels/str.c
+++ b/libglabels/str.c
@@ -249,7 +249,7 @@ lgl_str_format_fraction (gdouble x)
 	}
 	if ( denom[i] == 1.0 ) {
 		/* Simple integer. */
-		return g_strdup_printf ("%.0g", x);
+		return g_strdup_printf ("%.0f", x);
 	}
 	n = (gint)( x * denom[i] + 0.5 );
 	d = (gint)denom[i];
diff --git a/libglabels/xml-template.c b/libglabels/xml-template.c
index 50ae132..9a2c3c0 100644
--- a/libglabels/xml-template.c
+++ b/libglabels/xml-template.c
@@ -201,6 +201,8 @@ lgl_xml_template_parse_template_node (const xmlNodePtr template_node)
 	lglTemplate           *template;
 	xmlNodePtr             node;
         gchar                **v;
+        lglTemplateFrame      *frame;
+
 
 	brand = lgl_xml_get_prop_string (template_node, "brand", NULL);
 	part  = lgl_xml_get_prop_string (template_node, "part", NULL);
@@ -305,6 +307,27 @@ lgl_xml_template_parse_template_node (const xmlNodePtr template_node)
 	g_free (description);
 	g_free (paper_id);
 
+        /*
+         * Create a default full-page frame, if a known frame type was not found.
+         */
+        if ( template->frames == NULL )
+        {
+                g_message ("%s %s: missing valid frame node", template->brand, template->part);
+                frame = lgl_template_frame_rect_new ("0", page_width, page_height, 0, 0, 0);
+                lgl_template_frame_add_layout (frame, lgl_template_layout_new (1, 1, 0, 0, 0, 0));
+                lgl_template_add_frame (template, frame);
+        }
+
+        /*
+         * Create a default 1x1 layout, if layout is missing.
+         */
+        frame = (lglTemplateFrame *)template->frames->data;
+        if ( frame->all.layouts == NULL )
+        {
+                g_message ("%s %s: missing layout node", template->brand, template->part);
+                lgl_template_frame_add_layout (frame, lgl_template_layout_new (1, 1, 0, 0, 0, 0));
+        }
+
 	return template;
 }