mirror of https://github.com/octoleo/plantuml.git
159 lines
4.2 KiB
Java
159 lines
4.2 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 2009-2017, 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.svek;
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import java.util.ArrayList;
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import java.util.List;
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import net.sourceforge.plantuml.activitydiagram3.ftile.Snake;
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import net.sourceforge.plantuml.graphic.UGraphicDelegator;
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import net.sourceforge.plantuml.ugraphic.UChange;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.UShape;
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import net.sourceforge.plantuml.ugraphic.UTranslate;
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public class UGraphicForSnake extends UGraphicDelegator {
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private final double dx;
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private final double dy;
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private final List<PendingSnake> snakes;
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public UTranslate getTranslation() {
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return new UTranslate(dx, dy);
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}
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static class PendingSnake {
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private final Snake snake;
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private final UGraphic ug;
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private final double dx;
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private final double dy;
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private PendingSnake(Snake snake, UGraphic ug, double dx, double dy) {
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this.snake = snake;
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this.ug = ug;
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this.dx = dx;
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this.dy = dy;
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}
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void drawInternal() {
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snake.drawInternal(ug);
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}
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void removeEndDecorationIfTouches(List<PendingSnake> snakes) {
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for (PendingSnake other : snakes) {
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if (moved().touches(other.moved())) {
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this.snake.removeEndDecoration();
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return;
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}
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}
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}
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private Snake moved() {
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return snake.move(dx, dy);
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}
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@Override
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public String toString() {
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return "dx=" + dx + " dy=" + dy + " " + snake.move(dx, dy).toString();
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}
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public PendingSnake merge(PendingSnake newItem) {
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// if (snake.isMergeable() == false || newItem.snake.isMergeable() == false) {
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// return null;
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// }
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final Snake s1 = snake.move(dx, dy);
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final Snake s2 = newItem.snake.move(newItem.dx, newItem.dy);
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final Snake merge = s1.merge(s2, ug.getStringBounder());
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if (merge == null) {
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return null;
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}
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return new PendingSnake(merge.move(-dx, -dy), ug, dx, dy);
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}
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}
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public UGraphicForSnake(UGraphic ug) {
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this(ug, 0, 0, new ArrayList<PendingSnake>());
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}
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private UGraphicForSnake(UGraphic ug, double dx, double dy, List<PendingSnake> snakes) {
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super(ug);
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this.dx = dx;
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this.dy = dy;
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this.snakes = snakes;
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}
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public void draw(UShape shape) {
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if (shape instanceof Snake) {
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final Snake snake = (Snake) shape;
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addPendingSnake(snake);
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} else {
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getUg().draw(shape);
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}
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}
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private void addPendingSnake(final Snake snake) {
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final PendingSnake newItem = new PendingSnake(snake, getUg(), dx, dy);
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for (int pos = 0; pos < snakes.size(); pos++) {
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final PendingSnake merge = snakes.get(pos).merge(newItem);
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if (merge != null) {
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snakes.set(pos, merge);
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return;
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}
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}
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snakes.add(newItem);
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}
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@Override
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public void flushUg() {
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for (PendingSnake snake : snakes) {
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snake.removeEndDecorationIfTouches(snakes);
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snake.drawInternal();
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}
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snakes.clear();
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}
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public UGraphic apply(UChange change) {
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double newdx = dx;
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double newdy = dy;
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if (change instanceof UTranslate) {
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newdx += ((UTranslate) change).getDx();
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newdy += ((UTranslate) change).getDy();
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}
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return new UGraphicForSnake(getUg().apply(change), newdx, newdy, snakes);
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}
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} |