From 45f08a78a44545975e7bcb332dda6e56cd9efd84 Mon Sep 17 00:00:00 2001
From: ellson <devnull@localhost>
Date: Tue, 5 Jul 2005 19:21:46 +0000
Subject: [PATCH] adding infrastructure for a usershape plugin

---
 configure.ac                 |  1 +
 lib/common/types.h           |  1 +
 lib/gvc/gvplugin.h           |  2 +-
 lib/gvc/gvplugin_usershape.h | 36 ++++++++++++++++++++++++++++++++++++
 4 files changed, 39 insertions(+), 1 deletion(-)
 create mode 100644 lib/gvc/gvplugin_usershape.h

diff --git a/configure.ac b/configure.ac
index b1618039d..fd925fb30 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1510,6 +1510,7 @@ AC_CONFIG_FILES(Makefile
 	lib/gvc/libgvc.pc
 	plugin/Makefile
 	plugin/layout/Makefile
+	plugin/usershape/Makefile
 	cmd/Makefile
 	cmd/dot/Makefile
 	cmd/dot/dotneato-config
diff --git a/lib/common/types.h b/lib/common/types.h
index 92cf01370..c8c733b70 100644
--- a/lib/common/types.h
+++ b/lib/common/types.h
@@ -39,6 +39,7 @@ extern "C" {
     typedef struct gvrender_engine_s gvrender_engine_t;
     typedef struct gvlayout_engine_s gvlayout_engine_t;
     typedef struct gvtextlayout_engine_s gvtextlayout_engine_t;
+    typedef struct gvusershape_engine_s gvusershape_engine_t;
 
     typedef struct htmllabel_t htmllabel_t;
 
diff --git a/lib/gvc/gvplugin.h b/lib/gvc/gvplugin.h
index a1443c610..5ed77c137 100644
--- a/lib/gvc/gvplugin.h
+++ b/lib/gvc/gvplugin.h
@@ -41,7 +41,7 @@ extern "C" {
  * The enumerated type is defined here.  The apis array is
  * inititialized in gvplugin.c by redefining ELEM and reinvoking APIS.
  */
-#define APIS ELEM(render) ELEM(layout) ELEM(textlayout) ELEM(device)
+#define APIS ELEM(render) ELEM(layout) ELEM(textlayout) ELEM(device) ELEM(usershape)
 
 #define ELEM(x) API_##x,
     typedef enum { APIS } api_t; /* API_render, API_layout, ... */
diff --git a/lib/gvc/gvplugin_usershape.h b/lib/gvc/gvplugin_usershape.h
new file mode 100644
index 000000000..c0707c921
--- /dev/null
+++ b/lib/gvc/gvplugin_usershape.h
@@ -0,0 +1,36 @@
+/* $Id$ $Revision$ */
+/* vim:set shiftwidth=4 ts=8: */
+
+/**********************************************************
+*      This software is part of the graphviz package      *
+*                http://www.graphviz.org/                 *
+*                                                         *
+*            Copyright (c) 1994-2004 AT&T Corp.           *
+*                and is licensed under the                *
+*            Common Public License, Version 1.0           *
+*                      by AT&T Corp.                      *
+*                                                         *
+*        Information and Software Systems Research        *
+*              AT&T Research, Florham Park NJ             *
+**********************************************************/
+
+#ifndef GVUSERSHAPE_PLUGIN_H
+#define GVUSERSHAPE_PLUGIN_H
+
+#include "gvplugin.h"
+#include "gvcint.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+    struct gvusershape_engine_s {
+	void *(*getshape) (char *name);
+	void (*freeshapes) (void);
+	point (*image_size) (graph_t * g, char *shapefile);
+    };
+
+#ifdef __cplusplus
+}
+#endif
+#endif				/* GVUSERSHAPE_PLUGIN_H */
-- 
2.40.0