mirror of https://github.com/octoleo/plantuml.git
285 lines
9.4 KiB
Java
285 lines
9.4 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.awt.geom.Point2D;
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import java.awt.geom.Point2D.Double;
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import java.awt.geom.Rectangle2D;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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import net.sourceforge.plantuml.Dimension2DDouble;
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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.InnerStrategy;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.graphic.SymbolContext;
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import net.sourceforge.plantuml.graphic.TextBlock;
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import net.sourceforge.plantuml.graphic.color.Colors;
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import net.sourceforge.plantuml.ugraphic.MinMax;
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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 Histogram implements TimeDrawing {
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private final List<ChangeState> changes = new ArrayList<ChangeState>();
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private final List<TimeConstraint> constraints = new ArrayList<TimeConstraint>();
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private List<String> allStates = new ArrayList<String>();
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private final double stepHeight = 20;
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private final ISkinParam skinParam;
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private final TimingRuler ruler;
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private String initialState;
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public Histogram(TimingRuler ruler, ISkinParam skinParam) {
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this.ruler = ruler;
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this.skinParam = skinParam;
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}
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public IntricatedPoint getTimeProjection(StringBounder stringBounder, TimeTick tick) {
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final double x = ruler.getPosInPixel(tick);
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final List<String> states = getStatesAt(tick);
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if (states.size() == 0) {
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return null;
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}
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if (states.size() == 1) {
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final double y = getStateYFor(states.get(0));
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return new IntricatedPoint(new Point2D.Double(x, y), new Point2D.Double(x, y));
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}
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assert states.size() == 2;
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final double y1 = getStateYFor(states.get(0));
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final double y2 = getStateYFor(states.get(1));
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assert y1 != y2;
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return new IntricatedPoint(new Point2D.Double(x, y1), new Point2D.Double(x, y2));
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}
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private double getStateYFor(String state) {
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return (allStates.size() - 1 - allStates.indexOf(state)) * stepHeight;
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}
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private List<String> getStatesAt(TimeTick tick) {
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if (changes.size() == 0) {
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return Collections.emptyList();
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}
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for (int i = 0; i < changes.size(); i++) {
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if (changes.get(i).getWhen().compareTo(tick) == 0) {
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if (i == 0 && initialState == null) {
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return Arrays.asList(changes.get(i).getState());
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}
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if (i == 0 && initialState != null) {
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return Arrays.asList(initialState, changes.get(i).getState());
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}
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return Arrays.asList(changes.get(i - 1).getState(), changes.get(i).getState());
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}
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if (changes.get(i).getWhen().compareTo(tick) > 0) {
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return Collections.singletonList(changes.get(i - 1).getState());
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}
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}
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return Collections.singletonList(changes.get(changes.size() - 1).getState());
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}
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public void addChange(ChangeState change) {
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final String state = change.getState();
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if (allStates.contains(state) == false) {
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allStates.add(state);
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}
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changes.add(change);
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}
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private Point2D getPoint(int i) {
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final ChangeState change = changes.get(i);
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final double x = ruler.getPosInPixel(change.getWhen());
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return new Point2D.Double(x, yOfState(change.getState()));
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}
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private double yOfState(String state) {
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return -stepHeight * allStates.indexOf(state);
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}
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private SymbolContext getContext() {
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return new SymbolContext(HtmlColorUtils.COL_D7E0F2, HtmlColorUtils.COL_038048).withStroke(new UStroke(1.5));
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}
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public void drawU(UGraphic ug) {
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ug = getContext().apply(ug);
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final UTranslate deltaY = new UTranslate(0, getFullDeltaY());
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if (changes.size() == 0) {
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return;
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}
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if (initialState != null) {
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final Point2D pt = getPoint(0);
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drawHLine(ug, getInitialPoint(), getInitialWidth() + pt.getX());
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}
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for (int i = 0; i < changes.size() - 1; i++) {
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final Point2D pt = getPoint(i);
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final Point2D pt2 = getPoint(i + 1);
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final double len = pt2.getX() - pt.getX();
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drawHLine(ug, pt, len);
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}
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final Point2D pt = getPoint(changes.size() - 1);
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final double len = ruler.getWidth() - pt.getX();
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drawHLine(ug, pt, len);
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if (initialState != null) {
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final Point2D before = getInitialPoint();
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final Point2D current = getPoint(0);
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ug.apply(new UTranslate(current).compose(deltaY)).draw(new ULine(0, before.getY() - current.getY()));
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}
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for (int i = 1; i < changes.size(); i++) {
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final Point2D before = getPoint(i - 1);
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final Point2D current = getPoint(i);
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ug.apply(new UTranslate(current).compose(deltaY)).draw(new ULine(0, before.getY() - current.getY()));
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}
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for (int i = 0; i < changes.size(); i++) {
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final Point2D ptLabel = getPoint(i);
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final String comment = changes.get(i).getComment();
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if (comment == null) {
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continue;
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}
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final TextBlock label = getTextBlock(comment);
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final Dimension2D dim = label.calculateDimension(ug.getStringBounder());
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label.drawU(ug.apply(new UTranslate(ptLabel).compose(deltaY).compose(new UTranslate(2, -dim.getHeight()))));
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}
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for (TimeConstraint constraint : constraints) {
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final String state1 = last(getStatesAt(constraint.getTick1()));
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final String state2 = getStatesAt(constraint.getTick2()).get(0);
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final double y1 = getStateYFor(state1);
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final double y2 = getStateYFor(state2);
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constraint.drawU(ug.apply(new UTranslate(0, y1 - stepHeight / 2)), ruler, skinParam);
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}
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}
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private static String last(List<String> list) {
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return list.get(list.size() - 1);
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}
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private Double getInitialPoint() {
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return new Point2D.Double(-getInitialWidth(), yOfState(initialState));
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}
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private void drawHLine(UGraphic ug, final Point2D pt, final double len) {
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final UTranslate deltaY = new UTranslate(0, getFullDeltaY());
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final UTranslate pos = new UTranslate(pt).compose(deltaY);
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ug = ug.apply(pos);
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// final SymbolContext context = getContext();
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// final double height = -pt.getY();
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// if (height > 0) {
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// context.withForeColor(context.getBackColor()).apply(ug).draw(new URectangle(len, height));
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// }
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ug.draw(new ULine(len, 0));
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}
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private double getFullDeltaY() {
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return stepHeight * (allStates.size() - 1);
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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 getTextBlock(String value) {
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final Display display = Display.getWithNewlines(value);
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return display.create(getFontConfiguration(), HorizontalAlignment.LEFT, skinParam);
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}
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public double getHeight() {
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return stepHeight * allStates.size() + 10;
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}
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public TextBlock getWidthHeader(StringBounder stringBounder) {
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return new TextBlock() {
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public void drawU(UGraphic ug) {
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for (String state : allStates) {
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final TextBlock label = getTextBlock(state);
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final Dimension2D dim = label.calculateDimension(ug.getStringBounder());
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label.drawU(ug.apply(new UTranslate(0, getFullDeltaY() + yOfState(state) - dim.getHeight())));
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}
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}
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public Dimension2D calculateDimension(StringBounder stringBounder) {
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double width = 0;
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for (String state : allStates) {
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final TextBlock label = getTextBlock(state);
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final Dimension2D dim = label.calculateDimension(stringBounder);
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width = Math.max(width, dim.getWidth());
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}
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if (initialState != null) {
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width += getInitialWidth();
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}
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return new Dimension2DDouble(width, getFullDeltaY());
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}
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public MinMax getMinMax(StringBounder stringBounder) {
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throw new UnsupportedOperationException();
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}
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public Rectangle2D getInnerPosition(String member, StringBounder stringBounder, InnerStrategy strategy) {
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return null;
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}
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};
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}
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public void setInitialState(String initialState, Colors initialColors) {
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this.initialState = initialState;
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if (initialState != null) {
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allStates.add(initialState);
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}
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}
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private double getInitialWidth() {
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return stepHeight * 2;
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}
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public void addConstraint(TimeConstraint constraint) {
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this.constraints.add(constraint);
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}
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}
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