two_point_geom_manager.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017-2021 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;
 setGeometryChanged();
 }

 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;
 }
 setGeometryChanged();
 }

 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;
 setGeometryChanged();
 }

 bool HasGeometryChanged() const
 {
 return m_changed;
 }

 void ClearGeometryChanged()
 {
 m_changed = false;
 }

protected:
 void setGeometryChanged()
 {
 m_changed = true;
 }

private:

 VECTOR2I m_origin, m_end;
 bool m_angleSnap = false;

 bool m_changed = false;
 bool m_originSet = false;
};

} // PREVIEW
} // KIGFX

#endif // PREVIEW_ITEMS_TWO_POINT_GEOMETRY_MANAGER_H