two_point_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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */
 
#ifndef PREVIEW_ITEMS_TWO_POINT_GEOMETRY_MANAGER_H
#define PREVIEW_ITEMS_TWO_POINT_GEOMETRY_MANAGER_H
 
#include <math/vector2d.h>
#include <geometry/geometry_utils.h>
 
namespace KIGFX
{
class GAL;
 
namespace PREVIEW
{
 
class TWO_POINT_GEOMETRY_MANAGER
{
public:
 
    void SetOrigin( const VECTOR2I& aOrigin )
    {
        m_origin = aOrigin;
        m_originSet = true;
    }
 
    VECTOR2I GetOrigin() const
    {
        return m_origin;
    }
 
    void SetEnd( const VECTOR2I& aEnd )
    {
        if( m_angleSnap )
            m_end = GetVectorSnapped45( aEnd - m_origin ) + m_origin;
        else
            m_end = aEnd;
    }
 
    VECTOR2I GetEnd() const
    {
        return m_end;
    }
 
    void SetAngleSnap( bool aSnap )
    {
        m_angleSnap = aSnap;
    }
 
    bool GetAngleSnap() const
    {
        return m_angleSnap;
    }
 
    bool IsReset() const
    {
        return !m_originSet;
    }
 
    void Reset()
    {
        m_originSet = false;
    }
 
    bool IsEmpty() const
    {
        return !m_originSet || m_origin == m_end;
    }
 
private:
 
    VECTOR2I m_origin;
    VECTOR2I m_end;
    bool     m_angleSnap = false;
    bool     m_originSet = false;
};
 
} // PREVIEW
} // KIGFX
 
#endif // PREVIEW_ITEMS_TWO_POINT_GEOMETRY_MANAGER_H