/*
 * [Pentagon.java]
 *
 * Summary: Draws pentagon.
 *
 * Copyright: (c) 2011-2017 Roedy Green, Canadian Mind Products, http://mindprod.com
 *
 * Licence: This software may be copied and used freely for any purpose but military.
 *          http://mindprod.com/contact/nonmil.html
 *
 * Requires: JDK 1.8+
 *
 * Created with: JetBrains IntelliJ IDEA IDE http://www.jetbrains.com/idea/
 *
 * Version History:
 *  1.0 2011-01-29 initial version.
 */
package com.mindprod.connectors;

import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Polygon;

/**
 * Draws pentagon.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.0 2011-01-29 initial version.
 * @since 2011-01-29
 */
class Pentagon extends ConnectorPanel
    {
    /**
     * thickness of the outline around the slots.
     */
    private static final int LINER = 20;

    private static final int SIDE_MARGIN = 10;

    private static final Color OUTLINE_COLOR = Color.BLACK;

    private final Color fillColor;

    Pentagon( Color fillColor )
        {
        super( 1000, 1000 );
        this.fillColor = fillColor;
        }

    /**
     * draw a green equilateral triangle, outlined.
     *
     * @param g where to paint
     */
    public void paintComponent( Graphics g )
        {
        super.paintComponent( g );
        final Graphics2D g2d = ( Graphics2D ) g;
        // compute height
        final Point p0 = clockPoint( 500, 500, 500 - SIDE_MARGIN, 12 - 2.4 * 0 );
        final Point p2 = clockPoint( 500, 500, 500 - SIDE_MARGIN, 12 - 2.4 * 2 );
        final int height = p2.y - p0.y;
        final int topMargin = ( 1000 - height ) / 2 - SIDE_MARGIN;
        final Polygon outline = new Polygon();
        // start at noon and work counterclockwise, in 2.4 hour increments. (5*2.4 = 12)
        for ( int i = 0; i < 5; i++ )
            {
            final Point p = clockPoint( 500, 500 + topMargin, 500 - SIDE_MARGIN, 12 - 2.4 * i );
            outline.addPoint( p.x, p.y );
            }
        g2d.setColor( fillColor );
        g2d.fillPolygon( outline );
        g2d.setColor( OUTLINE_COLOR );
        g2d.setStroke( new BasicStroke( LINER ) );
        g2d.drawPolygon( outline );
        }
    }