kicad/include/preview_items/polygon_item.h

84 lines
2.3 KiB
C++

/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright (C) 2017 Kicad Developers, see change_log.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_POLYGON_ITEM__H_
#define PREVIEW_POLYGON_ITEM__H_
#include <preview_items/simple_overlay_item.h>
#include <geometry/shape_poly_set.h>
#include <geometry/shape_line_chain.h>
namespace KIGFX
{
class GAL;
class VIEW;
namespace PREVIEW
{
/**
* Class POLYGON_ITEM
*
* A preview item which shows an in-progress polygon, which
* can be used for zone outlines, etc
*/
class POLYGON_ITEM : public SIMPLE_OVERLAY_ITEM
{
public:
POLYGON_ITEM();
///> Gets the bounding box of the polygon
virtual const BOX2I ViewBBox() const override;
/**
* Set the polygon points
*
* @param aLockedInPts - the "fixed points" of the outline
* @param aLeaderPts - the lines from the last fixed point to
* another point, eg the cursor.
*/
void SetPoints( const SHAPE_LINE_CHAIN& aLockedInPts,
const SHAPE_LINE_CHAIN& aLeaderPts );
private:
///> Draw rectangle and centre line onto GAL
void drawPreviewShape( KIGFX::VIEW* aView ) const override;
///> complete polyline of locked in and leader points
SHAPE_LINE_CHAIN m_lockedChain, m_leaderChain;
///> polygon fill
SHAPE_POLY_SET m_polyfill;
};
} // PREVIEW
} // KIGFX
#endif // PREVIEW_POLYGON_ITEM__H_