Freset: properly reset graphics objects (bug #35511) * graphics.in.h (base_graphics_object, graphics_object, root): add new method "get_factory_defaults_list" to retrieve factory defaults as property_list * graphics.in.h (base_graphics_object::reset_default_properties (void)): move definition to graphics.cc * graphics.cc (xreset_default_properties): new function to set a list of prop/val * graphics.cc (base_graphics_object::reset_default_properties): use xreset_default_properties, override with parents' defaults * graphics.cc (root_figure::reset_default_properties, figure::reset_default_properties, uitoolbar::reset_default_properties): same as above but first empty local defaults * graphics.cc (axes_figure::reset_default_properties): same as above but use "propeties.set_defaults" to reset properties to their factory value. * graphics.cc (axes_figure::properties::set_defaults): new "reset" mode, that does the same as "replace" but x/y/zlabels and title are reset instead of being deleting/recreating. * graphics.cc: add %!tests for Freset

#include "mex.h"

void
mexFunction (int nlhs, mxArray* plhs[],
             int nrhs, const mxArray* prhs[])
{
  char *str;
  mxArray *v;

  if (nrhs != 2 || ! mxIsString (prhs[0]))
    mexErrMsgTxt ("expects symbol name and value");

  str = mxArrayToString (prhs[0]);

  v = mexGetArray (str, "global");

  if (v)
    {
      mexPrintf ("%s is a global variable with the following value:\n", str);
      mexCallMATLAB (0, NULL, 1, &v, "disp");
    }

  v = mexGetArray (str, "caller");

  if (v)
    {
      mexPrintf ("%s is a caller variable with the following value:\n", str);
      mexCallMATLAB (0, NULL, 1, &v, "disp");
    }

  // WARNING!! Can't do this in MATLAB!  Must copy variable first.
  mxSetName (prhs[1], str);
  mexPutArray (prhs[1], "caller");
}