net.sourceforge.plantuml.braille.BrailleGrid Maven / Gradle / Ivy

Go to download
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
 * |
 * |      PlantUML : a free UML diagram generator
 * |
 * +=======================================================================
 *
 * (C) Copyright 2009-2024, Arnaud Roques
 *
 * Project Info:  https://plantuml.com
 *
 * If you like this project or if you find it useful, you can support us at:
 *
 * https://plantuml.com/patreon (only 1$ per month!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the Revised BSD License.
 *
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * * Neither the name of the University of California, Berkeley nor the
 *   names of its contributors may be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * PlantUML can occasionally display sponsored or advertising messages. Those
 * messages are usually generated on welcome or error images and never on
 * functional diagrams.
 * See https://plantuml.com/professional if you want to remove them
 *
 * Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
 * are owned by the author of their corresponding sources code (that is, their
 * textual description in PlantUML language). Those images are not covered by
 * this BSD license.
 *
 * The generated images can then be used without any reference to the BSD license.
 * It is not even necessary to stipulate that they have been generated with PlantUML,
 * although this will be appreciated by the PlantUML team.
 *
 * There is an exception : if the textual description in PlantUML language is also covered
 * by any license, then the generated images are logically covered
 * by the very same license.
 *
 * This is the IGY distribution (Install GraphViz by Yourself).
 * You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
 * (see https://plantuml.com/graphviz-dot )
 *
 * Icons provided by OpenIconic :  https://useiconic.com/open
 * Archimate sprites provided by Archi :  http://www.archimatetool.com
 * Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
 * Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
 * ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
 * ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
 * CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
 * Brotli (c) by the Brotli Authors https://github.com/google/brotli
 * Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
 * Twemoji (c) by Twitter at https://twemoji.twitter.com/
 *
 */
package net.sourceforge.plantuml.braille;

import java.util.HashSet;
import java.util.List;
import java.util.Set;

import net.sourceforge.plantuml.klimt.geom.XCubicCurve2D;
import net.sourceforge.plantuml.klimt.geom.XPoint2D;
import net.sourceforge.plantuml.klimt.shape.DotPath;

public class BrailleGrid {

	private int minX;
	private int minY;
	private int maxX;
	private int maxY;

	private final double quanta;
	private final Set on = new HashSet<>();

	public BrailleGrid(double quanta) {
		this.quanta = quanta;
	}

	public boolean getState(int x, int y) {
		final Coords coords = new Coords(x, y);
		return on.contains(coords);
	}

	private void setStateDouble(double x, double y, boolean state) {
		setState(toInt(x), toInt(y), state);
	}

	public void setState(int x, int y, boolean state) {
		final Coords coords = new Coords(x, y);
		if (state) {
			on.add(coords);
		} else {
			on.remove(coords);
		}
		minX = Math.min(minX, x);
		maxX = Math.max(maxX, x);
		minY = Math.min(minY, y);
		maxY = Math.max(maxY, y);
	}

	public int getMinX() {
		return minX;
	}

	public int getMinY() {
		return minY;
	}

	public int getMaxX() {
		return maxX;
	}

	public int getMaxY() {
		return maxY;
	}

	public void rectangle(double x, double y, double width, double height) {
		hline(y, x, x + width);
		hline(y + height, x, x + width);
		vline(x, y, y + height);
		vline(x + width, y, y + height);

	}

	private void vline(double x, double y1, double y2) {
		final int i = toInt(x);
		final int j1 = toInt(y1);
		final int j2 = toInt(y2);
		for (int j = j1; j <= j2; j++) {
			setState(i, j, true);
		}
	}

	private void hline(double y, double x1, double x2) {
		final int j = toInt(y);
		final int i1 = toInt(x1);
		final int i2 = toInt(x2);
		for (int i = i1; i <= i2; i++) {
			setState(i, j, true);
		}
	}

	public int toInt(double value) {
		return (int) Math.round(value / quanta);
	}

	public void line(double x1, double y1, double x2, double y2) {
		if (x1 == x2) {
			vline(x1, y1, y2);
		} else if (y1 == y2) {
			hline(y1, x1, x2);
		} else {
			System.err.println("warning line");
		}

	}

	public double getQuanta() {
		return quanta;
	}

	public void drawDotPath(double x, double y, DotPath shape) {
		for (XCubicCurve2D bez : shape.getBeziers()) {
			drawCubic(x, y, bez);

		}
	}

	private void drawCubic(double x, double y, XCubicCurve2D bez) {
		drawPointInternal(x, y, bez.getP1());
		drawPointInternal(x, y, bez.getP2());
		if (bez.getP1().distance(bez.getP2()) > quanta) {
			final XCubicCurve2D part1 = XCubicCurve2D.none();
			final XCubicCurve2D part2 = XCubicCurve2D.none();
			bez.subdivide(part1, part2);
			drawCubic(x, y, part1);
			drawCubic(x, y, part2);
		}
	}

	private void drawPointInternal(double x, double y, XPoint2D pt) {
		setStateDouble(x + pt.getX(), y + pt.getY(), true);
	}

	public void drawPolygon(List points) {
		for (int i = 0; i < points.size() - 1; i++) {
			drawLineInternal(points.get(i), points.get(i + 1));
		}
		drawLineInternal(points.get(points.size() - 1), points.get(0));

	}

	private void drawLineInternal(XPoint2D a, XPoint2D b) {
		drawPointInternal(0, 0, a);
		drawPointInternal(0, 0, b);
		if (a.distance(b) > quanta) {
			final XPoint2D middle = new XPoint2D((a.getX() + b.getX()) / 2, (a.getY() + b.getY()) / 2);
			drawLineInternal(a, middle);
			drawLineInternal(middle, b);

		}
	}
}