mirror of https://github.com/octoleo/plantuml.git
180 lines
5.0 KiB
Java
180 lines
5.0 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2020, Arnaud Roques
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*
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* Project Info: http://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* http://plantuml.com/patreon (only 1$ per month!)
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* http://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*
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*/
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package net.sourceforge.plantuml.cute;
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import java.awt.geom.Point2D;
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import java.util.ArrayList;
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import java.util.List;
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import java.util.StringTokenizer;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.UPath;
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import net.sourceforge.plantuml.ugraphic.color.HColorNone;
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import net.sourceforge.plantuml.ugraphic.color.HColorUtils;
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public class CutePath {
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private final List<Arc> arcs = new ArrayList<Arc>();
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public CutePath(String value) {
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MyPoint2D lastAdded = null;
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String tension = null;
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final StringTokenizer spl = new StringTokenizer(value, "~:", true);
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while (spl.hasMoreTokens()) {
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final String token = spl.nextToken();
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if (token.equals(":")) {
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continue;
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} else if (token.equals("~")) {
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tension = spl.nextToken();
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final String next = spl.nextToken();
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if (next.equals("~") == false) {
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throw new IllegalArgumentException();
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}
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} else {
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final StringTokenizer st = new StringTokenizer(token.replaceAll("[()]", ""), ",^");
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final MyPoint2D current = new MyPoint2D(st);
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if (lastAdded != null) {
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add(new Arc(lastAdded, current).withTension(tension));
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}
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lastAdded = current;
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tension = null;
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}
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}
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add(new Arc(lastAdded, arcs.get(0).getA()).withTension(tension));
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}
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public CutePath() {
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}
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public void add(Arc arc) {
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if (arcs.size() > 0) {
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final Arc last = arcs.get(arcs.size() - 1);
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if (last.getB().equals(arc.getA()) == false) {
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throw new IllegalArgumentException("last=" + last.getB() + " arc=" + arc.getA());
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}
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}
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this.arcs.add(arc);
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}
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private final MyPoint2D getMyPoint2D(int i) {
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return getArc(i).getA();
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}
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private Arc getArc(int i) {
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if (i == -1) {
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return arcs.get(arcs.size() - 1);
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}
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if (i == arcs.size()) {
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return arcs.get(0);
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}
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if (i == arcs.size() + 1) {
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return arcs.get(1);
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}
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return arcs.get(i);
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}
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private UPath toUPath() {
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final TriangleCorner corner0 = new TriangleCorner(getMyPoint2D(0), getMyPoint2D(1), getMyPoint2D(2));
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final int swepFlag = corner0.determinant() < 0 ? 0 : 1;
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final UPath path = new UPath();
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final BetweenCorners betweenCornersLast = new BetweenCorners(getCorner(arcs.size() - 1),
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getCorner(arcs.size()), arcs.get(arcs.size() - 1).getTension());
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betweenCornersLast.initPath(path);
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for (int i = 0; i < arcs.size(); i++) {
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// if (i == 0) {
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// if (getMyPoint2D(i).hasCurvation()) {
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// path.moveTo(getPointK(i));
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// } else {
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// path.moveTo(arcs.get(i).getA());
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// }
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// }
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final BetweenCorners betweenCorners = new BetweenCorners(getCorner(i), getCorner(i + 1), arcs.get(i)
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.getTension());
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betweenCorners.addToPath(path, swepFlag);
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}
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path.closePath();
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return path;
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}
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private void debugMe(UGraphic ug) {
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for (int i = 0; i < arcs.size(); i++) {
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final BetweenCorners betweenCorners = new BetweenCorners(getCorner(i), getCorner(i + 1), arcs.get(i)
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.getTension());
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betweenCorners.debugMe(ug.apply(HColorUtils.BLACK).apply(new HColorNone().bg()));
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}
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}
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private Point2D getPointK(final int j) {
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if (getMyPoint2D(j).hasCurvation()) {
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return getCorner(j).getOnSegmentB(getMyPoint2D(j).getCurvation(0));
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}
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return arcs.get(j - 1).getB();
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}
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private TriangleCorner getCorner(int i) {
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return new TriangleCorner(getMyPoint2D(i), getMyPoint2D(i - 1), getMyPoint2D(i + 1));
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}
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public void drawU(UGraphic ug) {
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final UPath path = toUPath();
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ug.draw(path);
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// debugMe(ug);
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}
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public CutePath rotateZoom(RotationZoom rotationZoom) {
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final CutePath result = new CutePath();
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for (Arc arc : arcs) {
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result.arcs.add(arc.rotateZoom(rotationZoom));
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}
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return result;
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}
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public CutePath withNoTension() {
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final CutePath result = new CutePath();
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for (Arc arc : arcs) {
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result.arcs.add(arc.withNoTension());
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}
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return result;
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}
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}
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