From: erg <devnull@localhost>
Date: Mon, 14 Jun 2010 16:55:24 +0000 (+0000)
Subject: Add error message when either graph can't be loaded or contains backgrounds
X-Git-Tag: LAST_LIBGRAPH~32^2~1316
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=fbce8f4863342eccecf3af52e88e4f4f2462dc7f;p=graphviz

Add error message when either graph can't be loaded or contains backgrounds
which we don't handle yet.
---

diff --git a/cmd/tools/gvpack.c b/cmd/tools/gvpack.c
index 4c45374df..fae65a3d7 100644
--- a/cmd/tools/gvpack.c
+++ b/cmd/tools/gvpack.c
@@ -300,8 +300,17 @@ static void init_graph(Agraph_t * g, boolean fill, GVC_t* gvc)
     }
     Ndim = GD_ndim(g) = 2;
     init_node_edge(g);
-    if (fill && init_nop(g, 0)) {
-	exit(1);
+    if (fill) {
+	int ret = init_nop(g,0);
+	if (ret) {
+	    if (ret < 0)
+		fprintf(stderr, "Error loading layout info from graph %s\n",
+		    g->name);
+	    else if (ret > 0)
+		fprintf(stderr, "gvpack does not support backgrounds as found in graph %s\n",
+		    g->name);
+	    exit(1);
+	}
     }
 }