ellipse_geom_manager.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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, see <https://www.gnu.org/licenses/>.
 */
 
#ifndef PREVIEW_ITEMS_ELLIPSE_GEOMETRY_MANAGER_H
#define PREVIEW_ITEMS_ELLIPSE_GEOMETRY_MANAGER_H
 
#include <preview_items/multistep_geom_manager.h>
#include <geometry/eda_angle.h>
#include <geometry/ellipse.h>
 
namespace KIGFX
{
namespace PREVIEW
{

class ELLIPSE_GEOM_MANAGER : public MULTISTEP_GEOM_MANAGER
{
public:
    ELLIPSE_GEOM_MANAGER() {}
 
    enum ELLIPSE_STEPS
    {
        SET_BBOX_C1 = 0, 
        SET_BBOX_C2,     
        SET_START_ANGLE, 
        SET_END_ANGLE,   
        COMPLETE
    };
 
    int getMaxStep() const override { return COMPLETE; }
 
    ELLIPSE_STEPS GetStep() const { return static_cast<ELLIPSE_STEPS>( getStep() ); }

    void Reset() override;
 
    /*
     * Geometry query interface - used by clients of the manager
     */

    ELLIPSE<int> GetEllipse() const;

    EDA_ANGLE GetStartAngle() const { return m_startAngle; }

    EDA_ANGLE GetEndAngle() const { return m_endAngle; }

    VECTOR2I GetBboxCorner1() const { return m_bboxC1; }

    VECTOR2I GetBboxCorner2() const { return m_bboxC2; }
 
protected:
    bool acceptPoint( const VECTOR2I& aPt ) override;
 
private:
    bool setBboxCorner1( const VECTOR2I& aPt );
    bool setBboxCorner2( const VECTOR2I& aPt );
    bool setStartAngle( const VECTOR2I& aPt );
    bool setEndAngle( const VECTOR2I& aPt );
 
    VECTOR2I  m_bboxC1;
    VECTOR2I  m_bboxC2;
    VECTOR2I  m_center;
    double    m_majorRadius = 1.0;
    double    m_minorRadius = 1.0;
    EDA_ANGLE m_rotation = ANGLE_0;
    EDA_ANGLE m_startAngle = ANGLE_0;
    EDA_ANGLE m_endAngle = ANGLE_360;
};
 
} // namespace PREVIEW
} // namespace KIGFX
 
#endif // PREVIEW_ITEMS_ELLIPSE_GEOMETRY_MANAGER_H