/*
 * [MidiDinMale.java]
 *
 * Summary: draw Midi DIN pinout.
 *
 * 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.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.geom.Area;
import java.awt.geom.Ellipse2D;

/**
 * draw Midi DIN pinout.
 *
 * @author Roedy Green, Canadian Mind Products
 * @version 1.0 2011-01-29 initial version.
 * @since 2011-01-29
 */
class MidiDinMale extends ConnectorPanel
    {
    private static final int INNER_DIAMETER = 700;

    private static final int NOTCH_DEPTH = 100;

    private static final int OUTER_DIAMETER = 980;

    private static final int SHELL = 20;

    MidiDinMale()
        {
        super( 1000, 1000 );
        }

    /**
     * draw a Midi DIN pinout
     *
     * @param g where to paint
     */
    public void paintComponent( Graphics g )
        {
        super.paintComponent( g );
        // make a clone so we don't disturb clip region of caller
        final Graphics2D g2d = ( Graphics2D ) g.create();
        final int xCenter = 500;
        final int yCenter = 500;
        final Point notchleft = clockPoint( xCenter, yCenter, OUTER_DIAMETER / 2, 6.25 );
        final Point notchRight = clockPoint( xCenter, yCenter, OUTER_DIAMETER / 2, 5.75 );
        // protect the notch from being painted, with a square drop cloth a notch bitten
        // out of the bottom middle of it.
        // We still get artifacts. Why?
        final Shape currentClip = g2d.getClip();
        final Area dropCloth = currentClip == null ? new Area( new Rectangle( 0,
                0,
                this.imageWidth,
                this.imageHeight ) )
                                                   : new Area( currentClip );
        dropCloth.subtract( new Area( new Rectangle( notchleft.x + SHELL / 2 + 1,
                notchleft.y - NOTCH_DEPTH + SHELL / 2 + 1,
                notchRight.x - notchleft.x - SHELL,
                NOTCH_DEPTH * 2 ) ) );  // notch rectangle
        g2d.clip( dropCloth ); // .clip intersects dropCloth with and existing clip region.
        // it sometimes has artifacts which disappear with repaint.
        // I don't understand why these are happening.
        // See com.mindprod.example.PacMan for other techniques to handle making the notch transparent.
        g2d.setColor( HOLE_COLOR );
        g2d.fillOval( 10, 10, OUTER_DIAMETER, OUTER_DIAMETER );
        g2d.setColor( OUTLINE_COLOR );
        Shape circle = new Ellipse2D.Float( 10, 10, OUTER_DIAMETER, OUTER_DIAMETER );
        g2d.setStroke( new BasicStroke( SHELL ) );    // Set line width for drawing outside shell.
        g2d.draw( circle );
        g2d.setColor( OUTLINE_COLOR );
        // x, y is top left corner
        Shape notch = new Rectangle( notchleft.x, notchleft.y - NOTCH_DEPTH, notchRight.x - notchleft.x, NOTCH_DEPTH );
        // we don't want the bottom bar. Clip region suppresses it
        g2d.draw( notch );
        // 1=unused 2=shield 3=unused 4=positive 5=negative
        final int radius = INNER_DIAMETER / 2;
        g2d.setColor( UNCONNECTED_COLOR );
        Point p = clockPoint( xCenter, yCenter, radius, 3 );
        drawCenteredString( g2d, "\u2776" /*  "\u2460" *//* white 1 */, p.x, p.y );
        g2d.setColor( GROUND_COLOR );
        p = clockPoint( xCenter, yCenter, radius, 0 );
        drawCenteredString( g2d, "\u2777" /* black 2 */, p.x, p.y );
        g2d.setColor( UNCONNECTED_COLOR );
        p = clockPoint( xCenter, yCenter, radius, 9 );
        drawCenteredString( g2d, "\u2778" /*"\u2462"*/ /* white 3 */, p.x, p.y );
        g2d.setColor( POSITIVE_COLOR );
        p = clockPoint( xCenter, yCenter, radius, 1.5 );
        drawCenteredString( g2d, "\u2779" /* black 4 */, p.x, p.y );
        g2d.setColor( NEGATIVE_COLOR );
        p = clockPoint( xCenter, yCenter, radius, 10.5 );
        drawCenteredString( g2d, "\u277a" /* black 5 */, p.x, p.y );
        }
    }