2017-02-01 18:55:51 +00:00
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/* ========================================================================
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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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2017-03-15 19:13:31 +00:00
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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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2017-02-01 18:55:51 +00:00
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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.Font;
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import java.awt.geom.Dimension2D;
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import java.awt.geom.Point2D;
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import net.sourceforge.plantuml.ISkinSimple;
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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.TextBlock;
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import net.sourceforge.plantuml.graphic.UDrawable;
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import net.sourceforge.plantuml.ugraphic.UChangeBackColor;
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import net.sourceforge.plantuml.ugraphic.UChangeColor;
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import net.sourceforge.plantuml.ugraphic.UFont;
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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.UPolygon;
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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 TimeArrow implements UDrawable {
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private final Point2D start;
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private final Point2D end;
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private final Display label;
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private final ISkinSimple spriteContainer;
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public static TimeArrow create(IntricatedPoint pt1, IntricatedPoint pt2, Display label, ISkinSimple spriteContainer) {
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final TimeArrow arrow1 = new TimeArrow(pt1.getPointA(), pt2.getPointA(), label, spriteContainer);
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final TimeArrow arrow2 = new TimeArrow(pt1.getPointA(), pt2.getPointB(), label, spriteContainer);
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final TimeArrow arrow3 = new TimeArrow(pt1.getPointB(), pt2.getPointA(), label, spriteContainer);
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final TimeArrow arrow4 = new TimeArrow(pt1.getPointB(), pt2.getPointB(), label, spriteContainer);
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return shorter(arrow1, arrow2, arrow3, arrow4);
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}
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private TimeArrow(Point2D start, Point2D end, Display label, ISkinSimple spriteContainer) {
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this.start = start;
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this.end = end;
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this.label = label;
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this.spriteContainer = spriteContainer;
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}
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private double getAngle() {
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return Math.atan2(end.getX() - start.getX(), end.getY() - start.getY());
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}
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private static TimeArrow shorter(TimeArrow arrow1, TimeArrow arrow2) {
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if (arrow1.len() < arrow2.len()) {
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return arrow1;
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}
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return arrow2;
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}
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private static TimeArrow shorter(TimeArrow arrow1, TimeArrow arrow2, TimeArrow arrow3, TimeArrow arrow4) {
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return shorter(shorter(arrow1, arrow2), shorter(arrow3, arrow4));
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}
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private double len() {
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return start.distance(end);
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}
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public TimeArrow translate(UTranslate translate) {
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return new TimeArrow(translate.getTranslated(start), translate.getTranslated(end), label, spriteContainer);
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}
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2017-02-15 21:34:36 +00:00
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public static Point2D onCircle(Point2D pt, double alpha) {
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final double radius = 8;
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final double x = pt.getX() - Math.sin(alpha) * radius;
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final double y = pt.getY() - Math.cos(alpha) * radius;
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2017-02-01 18:55:51 +00:00
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return new Point2D.Double(x, y);
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}
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private FontConfiguration getFontConfiguration() {
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2017-04-05 17:37:42 +00:00
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final UFont font = UFont.serif(14);
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2017-02-01 18:55:51 +00:00
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return new FontConfiguration(font, HtmlColorUtils.BLUE, HtmlColorUtils.BLUE, false);
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}
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public void drawU(UGraphic ug) {
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final double angle = getAngle();
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2017-02-15 21:34:36 +00:00
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ug = ug.apply(new UChangeColor(HtmlColorUtils.BLUE)).apply(new UStroke());
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2017-02-01 18:55:51 +00:00
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final ULine line = new ULine(end.getX() - start.getX(), end.getY() - start.getY());
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ug.apply(new UTranslate(start)).draw(line);
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final double delta = 20.0 * Math.PI / 180.0;
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2017-02-15 21:34:36 +00:00
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final Point2D pt1 = onCircle(end, angle + delta);
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final Point2D pt2 = onCircle(end, angle - delta);
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2017-02-01 18:55:51 +00:00
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final UPolygon polygon = new UPolygon();
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polygon.addPoint(pt1.getX(), pt1.getY());
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polygon.addPoint(pt2.getX(), pt2.getY());
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polygon.addPoint(end.getX(), end.getY());
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ug = ug.apply(new UChangeBackColor(HtmlColorUtils.BLUE));
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ug.draw(polygon);
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final TextBlock textLabel = label.create(getFontConfiguration(), HorizontalAlignment.LEFT, spriteContainer);
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double xText = (pt1.getX() + pt2.getX()) / 2;
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double yText = (pt1.getY() + pt2.getY()) / 2;
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if (start.getY() < end.getY()) {
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final Dimension2D dimLabel = textLabel.calculateDimension(ug.getStringBounder());
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yText -= dimLabel.getHeight();
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}
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textLabel.drawU(ug.apply(new UTranslate(xText, yText)));
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// final double radius = 4;
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// final UTranslate forCirle = new UTranslate(end.getX() - radius, end.getY() - radius);
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// ug.apply(forCirle).draw(new UEllipse(2 * radius, 2 * radius));
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}
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}
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