mirror of https://github.com/octoleo/plantuml.git
201 lines
5.7 KiB
Java
201 lines
5.7 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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package net.sourceforge.plantuml.timingdiagram;
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import java.awt.geom.Dimension2D;
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import java.math.BigDecimal;
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import java.util.Collection;
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import java.util.Set;
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import java.util.SortedSet;
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import java.util.TreeSet;
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import net.sourceforge.plantuml.FontParam;
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import net.sourceforge.plantuml.ISkinParam;
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import net.sourceforge.plantuml.cucadiagram.Display;
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import net.sourceforge.plantuml.graphic.FontConfiguration;
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import net.sourceforge.plantuml.graphic.HorizontalAlignment;
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import net.sourceforge.plantuml.graphic.HtmlColorUtils;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.graphic.TextBlock;
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import net.sourceforge.plantuml.ugraphic.UChangeColor;
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import net.sourceforge.plantuml.ugraphic.UGraphic;
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import net.sourceforge.plantuml.ugraphic.ULine;
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import net.sourceforge.plantuml.ugraphic.UStroke;
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import net.sourceforge.plantuml.ugraphic.UTranslate;
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public class TimingRuler {
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private final SortedSet<TimeTick> times = new TreeSet<TimeTick>();
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private long highestCommonFactor = -1;
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private final ISkinParam skinParam;
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private long tickIntervalInPixels = 50;
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private long tickUnitary;
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public TimingRuler(ISkinParam skinParam) {
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this.skinParam = skinParam;
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this.times.add(new TimeTick(BigDecimal.ZERO));
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}
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public void scaleInPixels(long tick, long pixel) {
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this.tickIntervalInPixels = pixel;
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this.tickUnitary = tick;
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}
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private long tickUnitary() {
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if (tickUnitary == 0) {
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return highestCommonFactor;
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}
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return tickUnitary;
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}
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private int getNbTick() {
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if (times.size() == 0) {
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return 1;
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}
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final long delta = getMax().getTime().longValue() - getMin().getTime().longValue();
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return (int) (1 + delta / tickUnitary());
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}
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public double getWidth() {
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return getPosInPixel(new BigDecimal((getNbTick()) * tickUnitary()));
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}
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private double getPosInPixel(double time) {
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time -= getMin().getTime().doubleValue();
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return time / tickUnitary() * tickIntervalInPixels;
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}
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public void addTime(TimeTick time) {
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final boolean added = times.add(time);
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if (added) {
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long tick = time.getTime().longValue();
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if (tick > 0) {
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if (highestCommonFactor == -1) {
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highestCommonFactor = time.getTime().longValue();
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} else {
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highestCommonFactor = computeHighestCommonFactor(highestCommonFactor,
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Math.abs(time.getTime().longValue()));
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}
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}
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}
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}
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private FontConfiguration getFontConfiguration() {
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return new FontConfiguration(skinParam, FontParam.ACTIVITY, null);
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}
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private TextBlock getTimeTextBlock(long time) {
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final Display display = Display.getWithNewlines("" + time);
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return display.create(getFontConfiguration(), HorizontalAlignment.LEFT, skinParam);
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}
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public void draw(UGraphic ug) {
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ug = ug.apply(new UStroke(2.0)).apply(new UChangeColor(HtmlColorUtils.BLACK));
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final double tickHeight = 5;
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final ULine line = new ULine(0, tickHeight);
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final int nb = getNbTick();
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for (int i = 0; i <= nb; i++) {
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ug.apply(new UTranslate(tickIntervalInPixels * i, 0)).draw(line);
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}
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ug.draw(new ULine(nb * tickIntervalInPixels, 0));
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for (long round : roundValues()) {
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final TextBlock text = getTimeTextBlock(round);
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final Dimension2D dim = text.calculateDimension(ug.getStringBounder());
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text.drawU(ug.apply(new UTranslate(getPosInPixel(round) - dim.getWidth() / 2, tickHeight + 1)));
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}
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}
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public double getHeight(StringBounder stringBounder) {
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return getTimeTextBlock(0).calculateDimension(stringBounder).getHeight();
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}
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private Collection<Long> roundValues() {
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final Set<Long> result = new TreeSet<Long>();
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if (tickUnitary == 0) {
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for (TimeTick tick : times) {
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final long round = tick.getTime().longValue();
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result.add(round);
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}
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} else {
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final int nb = getNbTick();
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for (int i = 0; i <= nb; i++) {
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final long round = tickUnitary * i;
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result.add(round);
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}
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}
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return result;
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}
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private TimeTick getMax() {
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// if (times.size() == 0) {
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// throw new IllegalStateException("Empty list!");
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// }
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return times.last();
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}
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private TimeTick getMin() {
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// if (times.size() == 0) {
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// throw new IllegalStateException("Empty list!");
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// }
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return times.first();
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}
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private static long computeHighestCommonFactor(long a, long b) {
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long r = a;
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while (r != 0) {
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r = a % b;
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a = b;
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b = r;
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}
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return (Math.abs(a));
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}
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public final double getPosInPixel(BigDecimal time) {
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return getPosInPixel(time.doubleValue());
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}
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public final double getPosInPixel(TimeTick when) {
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return getPosInPixel(when.getTime());
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}
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public final double getMaxPosInPixel() {
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return getPosInPixel(getMax());
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}
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}
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