/* Render layout in a specified format to an external context */
int gvRenderContext(GVC_t *gvc, graph_t *g, const char *format, void *context)
{
int rc;
GVJ_t *job;
g = g->root;
/* create a job for the required format */
rc = gvjobs_output_langname(gvc, format);
job = gvc->job;
if (rc == NO_SUPPORT) {
agerr(AGERR, "Format: \"%s\" not recognized. Use one of:%s\n",
format, gvplugin_list(gvc, API_device, format));
return -1;
}
job->output_lang = gvrender_select(job, job->output_langname);
if (!LAYOUT_DONE(g) && !(job->flags & LAYOUT_NOT_REQUIRED)) {
agerrorf( "Layout was not done\n");
return -1;
}
job->context = context;
job->external_context = TRUE;
rc = gvRenderJobs(gvc, g);
gvrender_end_job(job);
gvdevice_finalize(job);
gvjobs_delete(gvc);
return rc;
}
/* Render layout in a specified format to an open FILE */
int gvRenderFilename(GVC_t *gvc, graph_t *g, const char *format, const char *filename)
{
int rc;
GVJ_t *job;
g = g->root;
/* create a job for the required format */
rc = gvjobs_output_langname(gvc, format);
job = gvc->job;
if (rc == NO_SUPPORT) {
agerr(AGERR, "Format: \"%s\" not recognized. Use one of:%s\n",
format, gvplugin_list(gvc, API_device, format));
return -1;
}
job->output_lang = gvrender_select(job, job->output_langname);
if (!GD_drawing(g) && !(job->flags & LAYOUT_NOT_REQUIRED)) {
fprintf(stderr, "Layout was not done\n");
return -1;
}
gvjobs_output_filename(gvc, filename);
gvRenderJobs(gvc, g);
gvrender_end_job(job);
gvdevice_finalize(job);
gvjobs_delete(gvc);
return 0;
}
int gvFreeContext(GVC_t * gvc)
{
if (gvc->active_jobs)
gvdevice_finalize(gvc);
emit_jobs_eof(gvc);
gvrender_delete_jobs(gvc);
if (gvc->config_path)
free(gvc->config_path);
free(gvc);
return (graphviz_errors + agerrors());
}
