libvaladoc: Prevent WITH_CGRAPH conditional having an impact on generated sources

5 files changed, 63 insertions, 15 deletions

diff --git a/libvaladoc/Makefile.am b/libvaladoc/Makefile.am
index 271c88ae0..384292f57 100644
--- a/libvaladoc/Makefile.am
+++ b/libvaladoc/Makefile.am
@@ -166,6 +166,7 @@ libvaladoc_la_VALASOURCES = \
 libvaladoc@PACKAGE_SUFFIX@_la_SOURCES = \
 	libvaladoc.vala.stamp \
 	$(libvaladoc_la_VALASOURCES:.vala=.c) \
+	gvc-compat.c \
 	$(NULL)
 
 valadoc@PACKAGE_SUFFIX@.vapi valadoc.h: libvaladoc.vala.stamp
diff --git a/libvaladoc/charts/chart.vala b/libvaladoc/charts/chart.vala
index a6307d7ff..4e642d1ce 100644
--- a/libvaladoc/charts/chart.vala
+++ b/libvaladoc/charts/chart.vala
@@ -20,6 +20,8 @@
  * 	Florian Brosch <flo.brosch@gmail.com>
  */
 
+[CCode (cname = "valadoc_compat_gvc_init")]
+extern void valadoc_gvc_init ();
 
 public class Valadoc.Charts.Chart : Api.Visitor {
 	protected Gvc.Context context;
@@ -27,9 +29,7 @@ public class Valadoc.Charts.Chart : Api.Visitor {
 	protected Factory factory;
 
 	static construct {
-		#if !WITH_CGRAPH
-		Gvc.init ();
-		#endif
+		valadoc_gvc_init ();
 	}
 
 	public Chart (Factory factory, Api.Node node) {
diff --git a/libvaladoc/charts/chartfactory.vala b/libvaladoc/charts/chartfactory.vala
index ab1ea7364..4fee00916 100644
--- a/libvaladoc/charts/chartfactory.vala
+++ b/libvaladoc/charts/chartfactory.vala
@@ -20,14 +20,12 @@
  * 	Florian Brosch <flo.brosch@gmail.com>
  */
 
+[CCode (cname = "valadoc_compat_gvc_graph_create_node")]
+extern Gvc.Node valadoc_gvc_graph_create_node (Gvc.Graph graph, string name);
 
 public abstract class Valadoc.Charts.Factory : Object {
 	protected Gvc.Node create_type (Gvc.Graph graph, Api.Node item) {
-#if WITH_CGRAPH
-		return graph.create_node (item.get_full_name (), 1);
-#else
-		return graph.create_node (item.get_full_name ());
-#endif
+		return valadoc_gvc_graph_create_node (graph, item.get_full_name ());
 	}
 
 	public abstract Gvc.Graph create_graph (Api.Node item);
diff --git a/libvaladoc/charts/simplechartfactory.vala b/libvaladoc/charts/simplechartfactory.vala
index a1d080fdd..ddacbf0f4 100644
--- a/libvaladoc/charts/simplechartfactory.vala
+++ b/libvaladoc/charts/simplechartfactory.vala
@@ -20,7 +20,8 @@
  * 	Florian Brosch <flo.brosch@gmail.com>
  */
 
-
+[CCode (cname = "valadoc_compat_gvc_graph_new")]
+extern Gvc.Graph valadoc_gvc_graph_new (string name);
 
 public class Valadoc.Charts.SimpleFactory : Charts.Factory {
 	protected virtual Gvc.Node configure_type (Gvc.Node node, Api.Node item) {
@@ -31,12 +32,7 @@ public class Valadoc.Charts.SimpleFactory : Charts.Factory {
 	}
 
 	public override Gvc.Graph create_graph (Api.Node item) {
-#if WITH_CGRAPH
-		var graph = new Gvc.Graph (item.get_full_name (), Gvc.Agdirected, 0);
-#else
-		var graph = new Gvc.Graph (item.get_full_name (), Gvc.GraphKind.AGDIGRAPH);
-#endif
-		return graph;
+		return valadoc_gvc_graph_new (item.get_full_name ());
 	}
 
 	public override Gvc.Context create_context (Gvc.Graph graph) {
diff --git a/libvaladoc/gvc-compat.c b/libvaladoc/gvc-compat.c
new file mode 100644
index 000000000..9ec37e616
--- /dev/null
+++ b/libvaladoc/gvc-compat.c
@@ -0,0 +1,53 @@
+/* gvc-compat.c
+ *
+ * Copyright (C) 2017  Rico Tzschichholz
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
+ *
+ * Author:
+ *  Rico Tzschichholz <ricotz@ubuntu.com>
+ */
+
+#include <gvc.h>
+
+/* Compat-layer for Graphviz with/without cgraph support */
+
+void
+valadoc_compat_gvc_init ()
+{
+#ifndef WITH_CGRAPH
+	aginit ();
+#endif
+}
+
+Agnode_t*
+valadoc_compat_gvc_graph_create_node (Agraph_t* graph, const char *name)
+{
+#ifdef WITH_CGRAPH
+	return agnode (graph, (char*) name, TRUE);
+#else
+	return agnode (graph, (char*) name);
+#endif
+}
+
+Agraph_t*
+valadoc_compat_gvc_graph_new (const char *name)
+{
+#ifdef WITH_CGRAPH
+	return agopen ((char*) name, Agdirected, NULL);
+#else
+	return agopen ((char*) name, AGDIGRAPH);
+#endif
+}