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PlantUML is a component that allows to quickly write diagrams from text.
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// 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!)
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* https://plantuml.com/paypal
*
*
* PlantUML is free software; you can redistribute it and/or modify it
* under the terms of the Apache Software License.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* PlantUML can occasionally display sponsored or advertising messages. Those
* messages are usually generated on welcome or error images and never on
* functional diagrams.
* See https://plantuml.com/professional if you want to remove them
*
* Images (whatever their format : PNG, SVG, EPS...) generated by running PlantUML
* are owned by the author of their corresponding sources code (that is, their
* textual description in PlantUML language). Those images are not covered by
* this APACHE license.
*
* The generated images can then be used without any reference to the APACHE license.
* It is not even necessary to stipulate that they have been generated with PlantUML,
* although this will be appreciated by the PlantUML team.
*
* There is an exception : if the textual description in PlantUML language is also covered
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* by the very same license.
*
* This is the IGY distribution (Install GraphViz by Yourself).
* You have to install GraphViz and to setup the GRAPHVIZ_DOT environment variable
* (see https://plantuml.com/graphviz-dot )
*
* Icons provided by OpenIconic : https://useiconic.com/open
* Archimate sprites provided by Archi : http://www.archimatetool.com
* Stdlib AWS provided by https://github.com/milo-minderbinder/AWS-PlantUML
* Stdlib Icons provided https://github.com/tupadr3/plantuml-icon-font-sprites
* ASCIIMathML (c) Peter Jipsen http://www.chapman.edu/~jipsen
* ASCIIMathML (c) David Lippman http://www.pierce.ctc.edu/dlippman
* CafeUndZopfli ported by Eugene Klyuchnikov https://github.com/eustas/CafeUndZopfli
* Brotli (c) by the Brotli Authors https://github.com/google/brotli
* Themes (c) by Brett Schwarz https://github.com/bschwarz/puml-themes
* Twemoji (c) by Twitter at https://twemoji.twitter.com/
*
*/
package net.sourceforge.plantuml.klimt.creole;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Deque;
import java.util.List;
import java.util.Objects;
import net.sourceforge.plantuml.klimt.LineBreakStrategy;
import net.sourceforge.plantuml.klimt.creole.atom.AbstractAtom;
import net.sourceforge.plantuml.klimt.creole.atom.Atom;
import net.sourceforge.plantuml.klimt.drawing.UGraphic;
import net.sourceforge.plantuml.klimt.font.StringBounder;
import net.sourceforge.plantuml.klimt.geom.XDimension2D;
public class Fission {
private final Stripe stripe;
private final LineBreakStrategy maxWidth;
public Fission(Stripe stripe, LineBreakStrategy maxWidth) {
this.stripe = stripe;
this.maxWidth = Objects.requireNonNull(maxWidth);
}
public List getSplitted(StringBounder stringBounder) {
final double valueMaxWidth = Math.abs(maxWidth.getMaxWidth());
if (valueMaxWidth == 0)
return Arrays.asList(stripe);
final List result = new ArrayList<>();
StripeSimpleInternal line = new StripeSimpleInternal(false, stringBounder, stripe.getLHeader());
result.add(line);
final Deque all = new ArrayDeque<>();
for (Atom atom : noHeader())
for (Neutron n : atom.getNeutrons())
all.addLast(n);
if (all.peekLast().getType() != NeutronType.ZWSP_SEPARATOR)
all.addLast(Neutron.zwspSeparator());
while (all.size() > 0) {
final Neutron current = all.removeFirst();
if (current.getType() == NeutronType.ZWSP_SEPARATOR && line.getWidth() > valueMaxWidth) {
all.addFirst(current);
final List removed = line.slightyShorten();
for (int i = removed.size() - 1; i >= 0; i--)
all.addFirst(removed.get(i));
line = new StripeSimpleInternal(true, stringBounder, blank(stripe.getLHeader()));
result.add(line);
} else
line.addNeutron(current);
}
for (Stripe l : result)
((StripeSimpleInternal) l).removeFinalSpaces();
while (result.size() > 1 && ((StripeSimpleInternal) result.get(result.size() - 1)).isWhite())
result.remove(result.size() - 1);
return Collections.unmodifiableList(result);
}
private List noHeader() {
final List atoms = stripe.getAtoms();
if (stripe.getLHeader() == null)
return atoms;
return atoms.subList(1, atoms.size());
}
static class StripeSimpleInternal implements Stripe {
private final boolean removeInitialSpaces;
private final Atom header;
private final List neutrons = new ArrayList<>();
private final StringBounder stringBounder;
private double width;
private StripeSimpleInternal(boolean removeInitialSpaces, StringBounder stringBounder, Atom header) {
this.removeInitialSpaces = removeInitialSpaces;
this.stringBounder = stringBounder;
this.header = header;
if (header != null)
width += header.calculateDimension(stringBounder).getWidth();
}
public double getWidth() {
if (width == -1)
throw new IllegalStateException();
// double width = 0;
// if (header != null)
// width += header.calculateDimension(stringBounder).getWidth();
// for (Neutron n : neutrons)
// width += n.getWidth(stringBounder);
return width;
}
@Override
public String toString() {
if (header != null)
return header.toString() + " " + neutrons;
return neutrons.toString();
}
public List slightyShorten() {
if (neutrons.size() == 0)
throw new IllegalStateException();
final int lastZwsp = lastZwsp();
if (lastZwsp == -1)
return Collections.emptyList();
this.width = -1;
final List removed = new ArrayList(neutrons.subList(lastZwsp, neutrons.size()));
while (neutrons.size() > lastZwsp)
neutrons.remove(neutrons.size() - 1);
return removed;
}
private boolean isWhite() {
for (Neutron n : neutrons)
if (n.getType() != NeutronType.ZWSP_SEPARATOR && n.getType() != NeutronType.SPACE)
return false;
return true;
}
private void removeFinalSpaces() {
while (neutrons.size() > 0 && neutrons.get(0).getType() == NeutronType.ZWSP_SEPARATOR)
neutrons.remove(0);
while (neutrons.size() > 1
&& (last().getType() == NeutronType.SPACE || last().getType() == NeutronType.ZWSP_SEPARATOR))
neutrons.remove(neutrons.size() - 1);
}
private Neutron last() {
return neutrons.get(neutrons.size() - 1);
}
private int lastZwsp() {
for (int i = neutrons.size() - 1; i >= 0; i--)
if (neutrons.get(i).getType() == NeutronType.ZWSP_SEPARATOR)
return i;
return -1;
}
public List getAtoms() {
final List result = new ArrayList<>();
if (header != null)
result.add(header);
for (Neutron n : neutrons)
if (n.getType() != NeutronType.ZWSP_SEPARATOR) {
if (removeInitialSpaces && result.size() == 0 && n.getType() == NeutronType.SPACE)
continue;
result.add(n.asAtom());
}
return Collections.unmodifiableList(result);
}
private void addNeutron(Neutron neutron) {
if (width == -1)
throw new IllegalStateException();
if (neutron.getType() == NeutronType.ZWSP_SEPARATOR && this.neutrons.size() == 0)
return;
if (neutron.getType() == NeutronType.ZWSP_SEPARATOR && this.neutrons.size() > 0
&& last().getType() == NeutronType.ZWSP_SEPARATOR)
return;
if (removeInitialSpaces && this.neutrons.size() == 0 && neutron.getType() == NeutronType.SPACE)
return;
this.neutrons.add(neutron);
this.width += neutron.getWidth(stringBounder);
}
public Atom getLHeader() {
return null;
}
}
private static Atom blank(final Atom header) {
if (header == null)
return null;
return new AbstractAtom() {
public XDimension2D calculateDimension(StringBounder stringBounder) {
return header.calculateDimension(stringBounder);
}
public double getStartingAltitude(StringBounder stringBounder) {
return header.getStartingAltitude(stringBounder);
}
public void drawU(UGraphic ug) {
}
};
}
}