kicad/include/preview_items/arc_assistant.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 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_ARC_ASSISTANT_H
#define PREVIEW_ITEMS_ARC_ASSISTANT_H
#include <eda_item.h>
#include <preview_items/arc_geom_manager.h>
#include <layer_ids.h>
namespace KIGFX
{
namespace PREVIEW
{
/**
* Represents an assistant draw when interactively drawing an arc on a canvas.
*/
class ARC_ASSISTANT : public EDA_ITEM
{
public:
ARC_ASSISTANT( const ARC_GEOM_MANAGER& aManager, EDA_UNITS aUnits );
const BOX2I ViewBBox() const override;
void ViewGetLayers( int aLayers[], int& aCount ) const override
{
aLayers[0] = LAYER_SELECT_OVERLAY; // Assistant graphics
aLayers[1] = LAYER_GP_OVERLAY; // Drop shadows
aCount = 2;
}
/**
* Draw the assistance (with reference to the construction manager
*/
void ViewDraw( int aLayer, KIGFX::VIEW* aView ) const override final;
#if defined( DEBUG )
void Show( int x, std::ostream& st ) const override
{
}
#endif
wxString GetClass() const override
{
return "ARC_ASSISTANT";
}
void SetUnits( EDA_UNITS aUnits ) { m_units = aUnits; }
private:
const ARC_GEOM_MANAGER& m_constructMan;
EDA_UNITS m_units;
};
} // namespace PREVIEW
} // namespace KIGFX
#endif // PREVIEW_ITEMS_ARC_ASSISTANT_H