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PlantUML is a component that allows to quickly write diagrams from text.
// THIS FILE HAS BEEN GENERATED BY A PREPROCESSOR.
/* +=======================================================================
* |
* | PlantUML : a free UML diagram generator
* |
* +=======================================================================
*
* (C) Copyright 2009-2024, Arnaud Roques
*
* Project Info: https://plantuml.com
*
* If you like this project or if you find it useful, you can support us at:
*
* https://plantuml.com/patreon (only 1$ per month!)
* https://plantuml.com/liberapay (only 1€ per month!)
* https://plantuml.com/paypal
*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* PlantUML distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see sections = edge.getSections();
if (sections.size() == 0) {
System.err.println("Strange: no section?");
System.err.println("Maybe a 'Long hierarchical edge' " + edge.isHierarchical());
return;
} else {
drawSections(ug, sections);
}
final UDrawable extremityFactory1 = getDecors(link.getType().getDecor1(), Math.PI / 2, HColors.WHITE);
final UDrawable extremityFactory2 = getDecors(link.getType().getDecor2(), -Math.PI / 2, HColors.WHITE);
if (extremityFactory1 != null) {
final double x = sections.get(0).getEndX();
final double y = sections.get(0).getEndY();
extremityFactory1.drawU(ug.apply(new UTranslate(x, y)));
}
if (extremityFactory2 != null) {
final double x = sections.get(0).getStartX();
final double y = sections.get(0).getStartY();
extremityFactory2.drawU(ug.apply(new UTranslate(x, y)));
}
drawLabels(ug);
}
private UDrawable getDecors(LinkDecor decors, double angle, HColor backColor) {
// For legacy reason, extends are treated differently
if (decors == LinkDecor.EXTENDS)
return new ExtremityFactoryExtends(backColor).createUDrawable(new XPoint2D(0, 0), angle, null);
final ExtremityFactory extremityFactory = decors.getExtremityFactoryLegacy(backColor);
if (extremityFactory == null)
return null;
return extremityFactory.createUDrawable(new XPoint2D(0, 0), angle, null);
}
private void drawLabels(UGraphic ug) {
for (ElkLabel label : edge.getLabels()) {
final double x = label.getX();
final double y = label.getY();
final TextBlock labelLink;
// Nasty trick: we store the type of label (center/head/tail) in the text
final String type = label.getText();
if ("X".equals(type))
labelLink = centerLabel;
else if ("1".equals(type))
labelLink = tailLabel;
else if ("2".equals(type))
labelLink = headLabel;
else
continue;
labelLink.drawU(ug.apply(new UTranslate(x, y)));
}
}
private void drawSections(UGraphic ug, final Collection sections) {
for (ElkEdgeSection section : sections) {
final Collection points = section.getBendPoints();
double x1 = section.getStartX();
double y1 = section.getStartY();
for (ElkBendPoint pt : points) {
drawLine(ug, x1, y1, pt.getX(), pt.getY());
x1 = pt.getX();
y1 = pt.getY();
}
drawLine(ug, x1, y1, section.getEndX(), section.getEndY() + magicY2);
}
}
private void drawLine(UGraphic ug, double x1, double y1, double x2, double y2) {
final ULine line = new ULine(x2 - x1, y2 - y1);
ug.apply(new UTranslate(x1, y1)).draw(line);
}
}