From ac5294e8ec0047f4761fe2781819da66a072d3a0 Mon Sep 17 00:00:00 2001
From: ellson <devnull@localhost>
Date: Thu, 20 Jan 2005 17:41:11 +0000
Subject: [PATCH] add wrapper functions for display plugin
---
lib/gvc/Makefile.am | 4 +--
lib/gvc/gvcint.h | 4 ++-
lib/gvc/gvdisplay.c | 73 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 78 insertions(+), 3 deletions(-)
create mode 100644 lib/gvc/gvdisplay.c
diff --git a/lib/gvc/Makefile.am b/lib/gvc/Makefile.am
index e0a343bef..50ac75e2d 100644
--- a/lib/gvc/Makefile.am
+++ b/lib/gvc/Makefile.am
@@ -21,7 +21,7 @@ pkginclude_HEADERS = gvc.h gvcint.h gvplugin.h \
pkglib_LTLIBRARIES = libgvc.la
pkgconfig_DATA = libgvc.pc
-libgvc_la_SOURCES = gvrender.c gvlayout.c gvtext.c gvcontext.c gvjobs.c \
- gvemit.c gvplugin.c gvconfig.c
+libgvc_la_SOURCES = gvrender.c gvlayout.c gvdisplay.c gvtext.c gvcontext.c \
+ gvjobs.c gvemit.c gvplugin.c gvconfig.c
EXTRA_DIST = Makefile.old
diff --git a/lib/gvc/gvcint.h b/lib/gvc/gvcint.h
index 10b151b38..69525f00a 100644
--- a/lib/gvc/gvcint.h
+++ b/lib/gvc/gvcint.h
@@ -154,7 +154,9 @@ extern "C" {
gv_plugin_t *api[NUM_APIS]; /* array of current plugins for each api */
void *display; /* window display data for gvdisplay plugin */
- gvtext_engine_t *text_engine; /* current text layout engine */
+ gvdisplay_engine_t *display_engine; /* current display engine */
+
+ gvtext_engine_t *text_engine; /* current text_layout engine */
/* gvrender_begin_job() */
char *layout_type; /* string name of layout type */
diff --git a/lib/gvc/gvdisplay.c b/lib/gvc/gvdisplay.c
new file mode 100644
index 000000000..84227c804
--- /dev/null
+++ b/lib/gvc/gvdisplay.c
@@ -0,0 +1,73 @@
+/* $Id$ $Revision$ */
+/* 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 *
+**********************************************************/
+
+/*
+ * display engine wrapper
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stdio.h>
+
+#include "const.h"
+#include "types.h"
+#include "macros.h"
+
+#include "gvplugin_display.h"
+#include "gvc.h"
+
+int gvdisplay_select(GVC_t * gvc, char *display)
+{
+ gv_plugin_t *plugin;
+ gvplugin_type_t *typeptr;
+
+ plugin = gvplugin_load(gvc, API_display, display);
+ if (plugin) {
+ typeptr = plugin->typeptr;
+ gvc->display_engine = (gvdisplay_engine_t *) (typeptr->engine);
+ return GVRENDER_PLUGIN; /* FIXME - need more suitable success code */
+ }
+ return NO_SUPPORT;
+}
+
+void gvdisplay_init(GVC_t *gvc)
+{
+ gvdisplay_engine_t *gvde = gvc->display_engine;
+
+ if (gvde && gvde->init) {
+ gvde->init(gvc);
+ }
+}
+
+void gvdisplay_process(GVC_t *gvc)
+{
+ gvdisplay_engine_t *gvde = gvc->display_engine;
+
+ if (gvde && gvde->process) {
+ gvde->process(gvc);
+ }
+}
+
+void gvdisplay_deinit(GVC_t *gvc)
+{
+ gvdisplay_engine_t *gvde = gvc->display_engine;
+
+ if (gvde && gvde->deinit) {
+ gvde->deinit(gvc);
+ }
+}
--
2.40.0