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/*
* This program source code file is part of KICAD, a free EDA CAD application.
*
* Copyright The 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_POLYGON_ITEM__H_
#define PREVIEW_POLYGON_ITEM__H_
#include <preview_items/simple_overlay_item.h>
#include <gal/color4d.h>
#include <geometry/shape_poly_set.h>
#include <geometry/shape_line_chain.h>
namespace KIGFX
{
class GAL;
class VIEW;
namespace PREVIEW
{
/**
* 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();
///< Sets the color of the preview outline
void SetLineColor( KIGFX::COLOR4D lineColor );
///< Sets the color of the outline leader line
void SetLeaderColor( KIGFX::COLOR4D leaderColor );
///< 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.
* @param aLoopPts - the lines from the cursor to the start point.
*/
void SetPoints( const SHAPE_LINE_CHAIN& aLockedInPts, const SHAPE_LINE_CHAIN& aLeaderPts,
const SHAPE_LINE_CHAIN& aLoopPts );
private:
///< Draw rectangle and center line onto GAL
void drawPreviewShape( KIGFX::VIEW* aView ) const override;
///< complete polyline of locked in, leader and looping points
SHAPE_LINE_CHAIN m_lockedChain, m_leaderChain, m_loopChain;
///< polygon fill
SHAPE_POLY_SET m_polyfill;
///< the preview outline color
KIGFX::COLOR4D m_lineColor;
///< the preview leader line color
KIGFX::COLOR4D m_leaderColor;
static const double POLY_LINE_WIDTH;
};
} // PREVIEW
} // KIGFX
#endif // PREVIEW_POLYGON_ITEM__H_
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