kicad/include/preview_items/centreline_rect_item.h

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2.3 KiB
C++

/*
* 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_CENTERLINE_RECT_ITEM_H
#define PREVIEW_ITEMS_CENTERLINE_RECT_ITEM_H
#include <preview_items/simple_overlay_item.h>
#include <geometry/shape_poly_set.h>
#include <math/vector2d.h>
namespace KIGFX
{
class GAL;
namespace PREVIEW
{
class TWO_POINT_GEOMETRY_MANAGER;
/**
* Class CENTRELINE_RECT_ITEM
*
* Represents an area drawn by drawing a rectangle of a given aspect
* along a vector, with the midpoiunt of one side on the start point
* and the mid point of the opposite side on the end.
*
* The centre line does not have to horizontal or vertical, it
* can be at any angle.
*/
class CENTRELINE_RECT_ITEM : public SIMPLE_OVERLAY_ITEM
{
public:
CENTRELINE_RECT_ITEM( const TWO_POINT_GEOMETRY_MANAGER& aGeomMgr,
double aAspect );
///> Gets the bounding box of the rectangle
virtual const BOX2I ViewBBox() const override;
private:
///> Get the rectangular outline
SHAPE_POLY_SET getOutline() const;
///> Draw rectangle and centre line onto GAL
void drawPreviewShape( KIGFX::GAL& aGal ) const override;
const TWO_POINT_GEOMETRY_MANAGER& m_geomMgr;
///> The aspect ratio of the rectangle to draw
double m_aspect;
};
} // PREVIEW
} // KIGFX
#endif // PREVIEW_ITEMS_CENTERLINE_RECT_ITEM_H