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/* This file contains the restorestate method, which is a GNU extension to
libplot. It pops off the drawing state on the top of the stack of
drawing states. Drawing states (other than the one which is always
present, and may not be popped off) are created and pushed onto the
stack by invoking the savestate routine. */
#include "sys-defines.h"
#include "plot.h"
#include "extern.h"
int
#ifdef _HAVE_PROTOS
_m_restorestate(void)
#else
_m_restorestate()
#endif
{
if (!_plotter->open)
{
_plotter->error ("restorestate: invalid operation");
return -1;
}
if (_plotter->outstream)
{
if (_plotter->portable_output)
fprintf (_plotter->outstream, "%c\n",
RESTORESTATE);
else
putc (RESTORESTATE, _plotter->outstream);
}
/* invoke generic method */
return _g_restorestate ();
}
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