arc_ball.h

Go to the documentation of this file.

/*
 *  OGF/Graphite: Geometry and Graphics Programming Library + Utilities
 *  Copyright (C) 2000 Bruno Levy
 *
 *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 *  If you modify this software, you should include a notice giving the
 *  name of the person performing the modification, the date of modification,
 *  and the reason for such modification.
 *
 *  Contact: Bruno Levy
 *
 *     levy@loria.fr
 *
 *     ISA Project
 *     LORIA, INRIA Lorraine,
 *     Campus Scientifique, BP 239
 *     54506 VANDOEUVRE LES NANCY CEDEX
 *     FRANCE
 *
 *  Note that the GNU General Public License does not permit incorporating
 *  the Software into proprietary programs.
 */
 
 
#ifndef H_OGF_SCENE_GRAPH_GFX_TRANSFORMS_ARCBALL_H
#define H_OGF_SCENE_GRAPH_GFX_TRANSFORMS_ARCBALL_H
 
#include <OGF/scene_graph_gfx/common/common.h>
#include <OGF/gom/types/object.h>
#include <geogram_gfx/gui/arc_ball.h>
 
namespace OGF {
 
    class RenderingContext;
 
//_________________________________________________________
 
    gom_class SCENE_GRAPH_GFX_API ArcBall : public Object {
    public:
        ArcBall();
 
        ~ArcBall() override;
 
    gom_properties:
 
        const mat4& get_value() const {
            return impl_.get_value();
        }
 
        void set_value(const mat4& value) {
            impl_.set_value(value);
            value_changed(value);
        }
 
        bool get_x_constraint() const {
            return impl_.get_x_constraint();
        }
 
        void set_x_constraint(bool value) {
            impl_.set_x_constraint(value);
        }
 
        bool get_y_constraint() const {
            return impl_.get_y_constraint();
        }
 
        void set_y_constraint(bool value) {
            impl_.set_y_constraint(value);
        }
 
        bool get_grabbed() const {
            return impl_.grabbed();
        }
 
    gom_slots:
        void grab(const vec2& value);
 
        void drag(const vec2& value);
 
        void release(const vec2& value);
 
    gom_signals:
        void value_changed(const mat4& value);
 
    private:
        GEO::ArcBall impl_;
    };
 
    typedef SmartPointer<ArcBall> ArcBall_var;
 
/****************************************************************************/
 
}
#endif