mirror of https://github.com/octoleo/plantuml.git
203 lines
6.5 KiB
Java
203 lines
6.5 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 2009-2020, 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.bpm;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.util.ArrayDeque;
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import java.util.ArrayList;
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import java.util.Deque;
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import java.util.List;
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import net.sourceforge.plantuml.FileFormatOption;
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import net.sourceforge.plantuml.SkinParam;
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import net.sourceforge.plantuml.UmlDiagram;
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import net.sourceforge.plantuml.UmlDiagramType;
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import net.sourceforge.plantuml.command.CommandExecutionResult;
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import net.sourceforge.plantuml.core.DiagramDescription;
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import net.sourceforge.plantuml.core.ImageData;
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import net.sourceforge.plantuml.graphic.UDrawable;
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import net.sourceforge.plantuml.style.ClockwiseTopRightBottomLeft;
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import net.sourceforge.plantuml.ugraphic.ImageBuilder;
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public class BpmDiagram extends UmlDiagram {
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private void cleanGrid(Grid grid) {
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while (true) {
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final boolean v1 = new CleanerEmptyLine().clean(grid);
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final boolean v2 = new CleanerInterleavingLines().clean(grid);
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final boolean v3 = new CleanerMoveBlock().clean(grid);
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if (v1 == false && v2 == false && v3 == false) {
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return;
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}
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}
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}
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private final BpmElement start = new BpmElement(null, BpmElementType.START);
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private List<BpmEvent> events = new ArrayList<BpmEvent>();
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private Deque<BpmBranch> branches = new ArrayDeque<BpmBranch>();
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public DiagramDescription getDescription() {
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return new DiagramDescription("(Bpm Diagram)");
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}
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@Override
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public UmlDiagramType getUmlDiagramType() {
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return UmlDiagramType.BPM;
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}
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@Override
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protected ImageData exportDiagramInternal(OutputStream os, int index, FileFormatOption fileFormatOption)
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throws IOException {
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final double dpiFactor = 1;
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final int margin1;
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final int margin2;
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if (SkinParam.USE_STYLES()) {
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margin1 = SkinParam.zeroMargin(10);
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margin2 = SkinParam.zeroMargin(10);
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} else {
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margin1 = 10;
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margin2 = 10;
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}
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final ImageBuilder imageBuilder = ImageBuilder.buildD(getSkinParam(), ClockwiseTopRightBottomLeft.margin1margin2((double) margin1, (double) margin2), getAnimation(), fileFormatOption.isWithMetadata() ? getMetadata() : null,
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getWarningOrError(), dpiFactor);
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imageBuilder.setUDrawable(getUDrawable());
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return imageBuilder.writeImageTOBEMOVED(fileFormatOption, seed(), os);
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}
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private UDrawable getUDrawable() {
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final Grid grid = createGrid();
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cleanGrid(grid);
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final GridArray gridArray = grid.toArray(SkinParam.create(getUmlDiagramType()));
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// gridArray.addEdges(edges);
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// System.err.println("gridArray=" + gridArray);
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return gridArray;
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}
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public CommandExecutionResult addEvent(BpmEvent event) {
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this.events.add(event);
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return CommandExecutionResult.ok();
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}
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private Coord current;
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private Cell last;
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private Grid createGrid() {
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final Grid grid = new Grid();
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this.current = grid.getRoot();
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// this.edges.clear();
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last = grid.getCell(current);
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grid.getCell(current).setData(start);
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for (BpmEvent event : events) {
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if (event instanceof BpmEventAdd) {
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final BpmEventAdd tmp = (BpmEventAdd) event;
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addInGrid(grid, tmp.getElement());
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} else if (event instanceof BpmEventResume) {
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final String idDestination = ((BpmEventResume) event).getId();
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current = grid.getById(idDestination);
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last = grid.getCell(current);
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if (last == null) {
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throw new IllegalStateException();
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}
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final Navigator<Line> nav = grid.linesOf(current);
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final Line newLine = new Line();
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nav.insertAfter(newLine);
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final Col row = current.getCol();
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current = new Coord(newLine, row);
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} else if (event instanceof BpmEventGoto) {
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final BpmEventGoto tmp = (BpmEventGoto) event;
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final String idDestination = tmp.getId();
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current = grid.getById(idDestination);
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final Cell src = last;
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last = grid.getCell(current);
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if (last == null) {
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throw new IllegalStateException();
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}
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final Navigator<Line> nav = grid.linesOf(current);
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final Line newLine = new Line();
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nav.insertAfter(newLine);
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final Col row = current.getCol();
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current = new Coord(newLine, row);
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src.addConnectionTo2(last.getData());
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} else {
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throw new IllegalStateException();
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}
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}
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grid.addConnections();
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// for (GridEdge edge : edges) {
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// System.err.println("EDGE=" + edge.getEdgeDirection());
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// edge.addLineIn(grid);
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// }
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// grid.addEdge(edges);
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return grid;
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}
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private void addInGrid(Grid grid, BpmElement element) {
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final Navigator<Col> nav = grid.colsOf(current);
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final Col newRow = new Col();
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nav.insertAfter(newRow);
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current = new Coord(current.getLine(), newRow);
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grid.getCell(current).setData(element);
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last.addConnectionTo2(grid.getCell(current).getData());
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last = grid.getCell(current);
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}
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public CommandExecutionResult newBranch() {
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final BpmBranch branch = new BpmBranch(events.size());
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branches.addLast(branch);
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return addEvent(new BpmEventAdd(branch.getEntryElement()));
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}
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public CommandExecutionResult elseBranch() {
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final BpmBranch branch = branches.getLast();
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final int counter = branch.incAndGetCounter();
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if (counter == 2) {
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addEvent(new BpmEventAdd(branch.getElseElement()));
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return addEvent(branch.getResumeEntryEvent());
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}
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addEvent(branch.getGoToEndEvent());
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return addEvent(branch.getResumeEntryEvent());
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}
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public CommandExecutionResult endBranch() {
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final BpmBranch branch = branches.removeLast();
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return addEvent(branch.getGoToEndEvent());
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}
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}
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