gradient_manager.hh

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//------------------------------------------------------------------------------
// This file is part of the OpenStructure project <www.openstructure.org>
//
// Copyright (C) 2008-2020 by the OpenStructure authors
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 3.0 of the License, or (at your option)
// any later version.
// This library 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 Lesser General Public License for more
// details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this library; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//------------------------------------------------------------------------------
#ifndef OST_GFX_GRADIENT_MANAGER_HH
#define OST_GFX_GRADIENT_MANAGER_HH

#include <vector>
#include <map>

#include <ost/gfx/module_config.hh>
#include <ost/gfx/gradient.hh>

/*
  Author: Stefan Scheuber
*/

namespace ost { namespace gfx {

class
//DLLEXPORT_OST_GFX
GradientManager {

public:
  static GradientManager& Instance();
  const std::vector<String> GetGradientNames() const;
  const Gradient& GetGradient(String name) const;

  void SetGradient(String name, Gradient gradient);
  void RemoveGradient(String name);

  virtual ~GradientManager();

private:
  GradientManager();
  mutable std::map<String, Gradient> gradients_;
  Gradient empty_gradient_;
};

}} //ns

#endif /* OST_GFX_GRADIENT_MANAGER_HH */