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118 lines
3.8 KiB
Java
118 lines
3.8 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 2009-2024, Arnaud Roques
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*
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* Project Info: https://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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* https://plantuml.com/patreon (only 1$ per month!)
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* https://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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*/
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package net.sourceforge.plantuml.sequencediagram.graphic;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Map;
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import net.sourceforge.plantuml.klimt.creole.Display;
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import net.sourceforge.plantuml.sequencediagram.Newpage;
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class PageSplitter {
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private final double fullHeight;
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private final List<Double> positions;
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private final List<Display> titles;
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private final double headerHeight;
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private final double tailHeight;
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private final double signatureHeight;
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private final double newpageHeight;
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private final Display diagramTitle;
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PageSplitter(double fullHeight, double headerHeight, Map<Newpage, Double> newpages, double tailHeight,
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double signatureHeight, double newpageHeight, Display diagramTitle) {
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this.fullHeight = fullHeight;
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this.diagramTitle = diagramTitle;
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this.titles = new ArrayList<>();
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this.positions = new ArrayList<>();
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for (Map.Entry<Newpage, Double> ent : newpages.entrySet()) {
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titles.add(ent.getKey().getTitle());
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positions.add(ent.getValue());
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}
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this.headerHeight = headerHeight;
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this.tailHeight = tailHeight;
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this.signatureHeight = signatureHeight;
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this.newpageHeight = newpageHeight;
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}
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public List<Page> getPages() {
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if (positions.size() == 0) {
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return Arrays.asList(onePage());
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}
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final List<Page> result = new ArrayList<>();
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result.add(firstPage());
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for (int i = 0; i < positions.size() - 1; i++) {
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result.add(createPage(i));
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}
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result.add(lastPage());
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return result;
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}
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private Page lastPage() {
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final double newpage1 = positions.get(positions.size() - 1) - this.newpageHeight;
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final double newpage2 = this.fullHeight - this.tailHeight - this.signatureHeight;
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final Display title = titles.get(positions.size() - 1);
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return new Page(headerHeight, newpage1, newpage2, tailHeight, signatureHeight, title);
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}
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private Page firstPage() {
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final double newpage1 = this.headerHeight;
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final double newpage2 = positions.get(0) + this.newpageHeight;
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return new Page(headerHeight, newpage1, newpage2, tailHeight, 0, diagramTitle);
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}
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private Page onePage() {
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final double newpage1 = this.headerHeight;
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final double newpage2 = this.fullHeight - this.tailHeight - this.signatureHeight;
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return new Page(headerHeight, newpage1, newpage2, tailHeight, signatureHeight, diagramTitle);
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}
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private Page createPage(int i) {
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final double newpage1 = positions.get(i) - this.newpageHeight;
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final double newpage2 = positions.get(i + 1) + this.newpageHeight;
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final Display title = titles.get(i);
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return new Page(headerHeight, newpage1, newpage2, tailHeight, 0, title);
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}
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}
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