flexlay/libflexlay/objmap_control_point.hpp

// Flexlay - A Generic 2D Game Editor
// Copyright (C) 2002 Ingo Ruhnke <grumbel@gmail.com>
//
// 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 3 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, see <http://www.gnu.org/licenses/>.

#ifndef HEADER_FLEXLAY_OBJMAP_CONTROL_POINT_HPP
#define HEADER_FLEXLAY_OBJMAP_CONTROL_POINT_HPP

#include <boost/signals2.hpp>

#include "math/rect.hpp"
#include "meta_data.hpp"
#include "sprite.hpp"

class GraphicContext;
class ObjMapControlPointImpl;

/** An ObjMapControlPoint is used to control a property of an object,
    such as size, rotation or scaling. ControlPoints get drawn around
    the object in a size which is independend of the current zoom
    level and can be draged around with the mous. */
class ObjMapControlPoint
{
private:
public:
  ObjMapControlPoint() : impl() {}
  ObjMapControlPoint(Sprite sprite_, Pointf pos_, MetaData data_);

  Pointf get_pos() const;
  void set_pos(const Pointf& p);
  void set_pos_raw(const Pointf& p);
  void draw(GraphicContext& gc);

  Rect get_bound_rect() const;

  boost::signals2::signal<void (Pointf)>& sig_set_pos();

  bool is_null() const { return !impl.get(); }

private:
  std::shared_ptr<ObjMapControlPointImpl> impl;
};

#endif

/* EOF */