kicad/include/preview_items/ruler_item.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_RULER_ITEM_H
#define PREVIEW_ITEMS_RULER_ITEM_H
#include <eda_item.h>
#include <preview_items/two_point_geom_manager.h>
namespace KIGFX
{
class GAL;
namespace PREVIEW
{
class TWO_POINT_GEOMETRY_MANAGER;
/**
* A drawn ruler item for showing the distance between two points.
*/
class RULER_ITEM : public EDA_ITEM
{
public:
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RULER_ITEM( const TWO_POINT_GEOMETRY_MANAGER& m_geomMgr, EDA_UNITS userUnits );
///< @copydoc EDA_ITEM::ViewBBox()
const BOX2I ViewBBox() const override;
///< @copydoc EDA_ITEM::ViewGetLayers()
void ViewGetLayers( int aLayers[], int& aCount ) const override;
///< @copydoc EDA_ITEM::ViewDraw();
void ViewDraw( int aLayer, KIGFX::VIEW* aView ) const override final;
#if defined(DEBUG)
void Show( int x, std::ostream& st ) const override
{
}
#endif
/**
* Get class name
* @return string "RULER_ITEM"
*/
wxString GetClass() const override
{
return wxT( "RULER_ITEM" );
}
/**
* Switch the ruler units
*
* @param aUnits is the new unit system the ruler should use
*/
void SwitchUnits( EDA_UNITS aUnits ) { m_userUnits = aUnits; }
private:
const TWO_POINT_GEOMETRY_MANAGER& m_geomMgr;
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EDA_UNITS m_userUnits;
};
} // PREVIEW
} // KIGFX
#endif // PREVIEW_ITEMS_RULER_ITEM_H