// $Id: Smooth.cpp,v 1.24 2007-05-04 10:45:09 geuzaine Exp $
//
// Copyright (C) 1997-2007 C. Geuzaine, J.-F. Remacle
//
// This program is free software; you can 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 of the License, or
// (at your option) any later version.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA.
// 
// Please report all bugs and problems to <gmsh@geuz.org>.

#include "Plugin.h"
#include "Smooth.h"
#include "List.h"
#include "Views.h"
#include "Context.h"

extern Context_T CTX;

StringXNumber SmoothOptions_Number[] = {
  {GMSH_FULLRC, "iView", NULL, -1.}
};

extern "C"
{
  GMSH_Plugin *GMSH_RegisterSmoothPlugin()
  {
    return new GMSH_SmoothPlugin();
  }
}


GMSH_SmoothPlugin::GMSH_SmoothPlugin()
{
  ;
}

void GMSH_SmoothPlugin::getName(char *name) const
{
  strcpy(name, "Smooth");
}

void GMSH_SmoothPlugin::getInfos(char *author, char *copyright,
                                 char *help_text) const
{
  strcpy(author, "C. Geuzaine");
  strcpy(copyright, "DGR (www.multiphysics.com)");
  strcpy(help_text,
         "Plugin(Smooth) averages the values at the nodes\n"
	 "of the scalar view `iView'. If `iView' < 0, the\n"
	 "plugin is run on the current view.\n"
	 "\n"
	 "Plugin(Smooth) is executed in-place.\n");
}

int GMSH_SmoothPlugin::getNbOptions() const
{
  return sizeof(SmoothOptions_Number) / sizeof(StringXNumber);
}

StringXNumber *GMSH_SmoothPlugin::getOption(int iopt)
{
  return &SmoothOptions_Number[iopt];
}

void GMSH_SmoothPlugin::catchErrorMessage(char *errorMessage) const
{
  strcpy(errorMessage, "Smooth failed...");
}

Post_View *GMSH_SmoothPlugin::execute(Post_View * v)
{
  int iView = (int)SmoothOptions_Number[0].def;

  if(iView < 0)
    iView = v ? v->Index : 0;

  if(!List_Pointer_Test(CTX.post.list, iView)) {
    Msg(GERROR, "View[%d] does not exist", iView);
    return v;
  }

  Post_View *v1 = *(Post_View **)List_Pointer(CTX.post.list, iView);

  v1->smooth();
  return v1;
}