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/* This file is part of the GNU plotutils package. Copyright (C) 1995,
1996, 1997, 1998, 1999, 2000, 2005, 2008, Free Software Foundation, Inc.
The GNU plotutils package is free software. You may redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software foundation; either version 2, or (at your
option) any later version.
The GNU plotutils package 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
General Public License for more details.
You should have received a copy of the GNU General Public License along
with the GNU plotutils package; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin St., Fifth Floor,
Boston, MA 02110-1301, USA. */
/* This file belongs to both libplot and libplotter. It contains a
function that appears in both the old (non-thread-safe) C and C++
bindings. It is named pl_parampl() and parampl(), respectively.
pl_parampl/parampl sets parameters in a global PlotterParams object,
which is used as a source of parameters when any Plotter is created.
The presence of this global state is one reason why the old API's are
not thread-safe.
In libplotter, parampl is a static function member of the Plotter class,
as is the global PlotterParams. This is arranged by #ifdef's in
extern.h.
In both libplot and libplotter, the pointer to the global PlotterParams,
which is called _old_api_global_plotter_params, is defined in
g_defplot.c. */
#include "sys-defines.h"
#include "extern.h"
#ifndef LIBPLOTTER
#include "plot.h" /* header file for C API's */
#endif
int
#ifdef LIBPLOTTER
parampl (const char *parameter, void *value)
#else /* not LIBPLOTTER */
pl_parampl (const char *parameter, void *value)
#endif
{
/* create global object if necessary (via different routes for libplotter
and libplot; for latter, call a function in new C API) */
if (_old_api_global_plotter_params == NULL)
#ifdef LIBPLOTTER
_old_api_global_plotter_params = new PlotterParams;
#else
_old_api_global_plotter_params = pl_newplparams ();
#endif
return _old_api_global_plotter_params->setplparam (R___(_old_api_global_plotter_params)
parameter, value);
}
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