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290 lines
10 KiB
Java
290 lines
10 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.ugraphic.eps;
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import java.awt.Color;
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import java.awt.Shape;
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import java.awt.font.FontRenderContext;
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import java.awt.font.TextLayout;
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import java.awt.geom.PathIterator;
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import java.util.ArrayList;
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import java.util.List;
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import net.sourceforge.plantuml.FileFormat;
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import net.sourceforge.plantuml.eps.EpsGraphics;
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import net.sourceforge.plantuml.eps.EpsGraphicsMacroAndText;
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import net.sourceforge.plantuml.eps.EpsStrategy;
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import net.sourceforge.plantuml.graphic.FontConfiguration;
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import net.sourceforge.plantuml.graphic.FontStyle;
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import net.sourceforge.plantuml.graphic.StringBounder;
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import net.sourceforge.plantuml.graphic.TextBlockUtils;
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import net.sourceforge.plantuml.ugraphic.ClipContainer;
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import net.sourceforge.plantuml.ugraphic.MinMax;
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import net.sourceforge.plantuml.ugraphic.UClip;
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import net.sourceforge.plantuml.ugraphic.UDriver;
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import net.sourceforge.plantuml.ugraphic.UFont;
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import net.sourceforge.plantuml.ugraphic.UParam;
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import net.sourceforge.plantuml.ugraphic.UShape;
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import net.sourceforge.plantuml.ugraphic.UText;
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import net.sourceforge.plantuml.ugraphic.color.ColorMapper;
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import net.sourceforge.plantuml.ugraphic.color.HColor;
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import net.sourceforge.plantuml.ugraphic.color.HColorUtils;
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public class DriverTextEps implements UDriver<EpsGraphics> {
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private final StringBounder stringBounder;
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private final ClipContainer clipContainer;
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private final FontRenderContext fontRenderContext;
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private final EpsStrategy strategy;
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public DriverTextEps(ClipContainer clipContainer, EpsStrategy strategy) {
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this.stringBounder = FileFormat.PNG.getDefaultStringBounder();
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this.clipContainer = clipContainer;
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this.fontRenderContext = TextBlockUtils.getFontRenderContext();
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this.strategy = strategy;
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}
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public void draw(UShape ushape, double x, double y, ColorMapper mapper, UParam param, EpsGraphics eps) {
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final UClip clip = clipContainer.getClip();
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if (clip != null && clip.isInside(x, y) == false) {
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return;
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}
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final UText shape = (UText) ushape;
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final FontConfiguration fontConfiguration = shape.getFontConfiguration();
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if (HColorUtils.isTransparent(fontConfiguration.getColor())) {
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return;
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}
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if (strategy == EpsStrategy.WITH_MACRO_AND_TEXT) {
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drawAsText(shape, x, y, param, eps, mapper);
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return;
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}
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final UFont font = fontConfiguration.getFont();
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final TextLayout textLayout = new TextLayout(shape.getText(), font.getUnderlayingFont(), fontRenderContext);
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// System.err.println("text=" + shape.getText());
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MinMax dim = null;
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if (fontConfiguration.containsStyle(FontStyle.BACKCOLOR)) {
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final Color extended = mapper.toColor(fontConfiguration.getExtendedColor());
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if (extended != null) {
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eps.setStrokeColor(extended);
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eps.setFillColor(extended);
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eps.setStrokeWidth(1, 0, 0);
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if (dim == null) {
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dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
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}
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eps.epsRectangle(dim.getMinX() - 1, dim.getMinY() - 1, dim.getWidth() + 2, dim.getHeight() + 2, 0, 0);
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}
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}
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eps.setStrokeColor(mapper.toColor(fontConfiguration.getColor()));
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drawPathIterator(eps, x, y, getOutline(textLayout));
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if (fontConfiguration.containsStyle(FontStyle.UNDERLINE)) {
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final HColor extended = fontConfiguration.getExtendedColor();
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if (extended != null) {
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eps.setStrokeColor(mapper.toColor(extended));
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}
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if (dim == null) {
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dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
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}
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eps.setStrokeWidth(1.1, 0, 0);
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eps.epsLine(x, y + 1.5, x + dim.getWidth(), y + 1.5);
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eps.setStrokeWidth(1, 0, 0);
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}
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if (fontConfiguration.containsStyle(FontStyle.WAVE)) {
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if (dim == null) {
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dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
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}
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final int ypos = (int) (y + 2.5) - 1;
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final HColor extended = fontConfiguration.getExtendedColor();
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if (extended != null) {
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eps.setStrokeColor(mapper.toColor(extended));
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}
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eps.setStrokeWidth(1.1, 0, 0);
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for (int i = (int) x; i < x + dim.getWidth() - 5; i += 6) {
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eps.epsLine(i, ypos - 0, i + 3, ypos + 1);
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eps.epsLine(i + 3, ypos + 1, i + 6, ypos - 0);
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}
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eps.setStrokeWidth(1, 0, 0);
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}
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if (fontConfiguration.containsStyle(FontStyle.STRIKE)) {
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final HColor extended = fontConfiguration.getExtendedColor();
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if (extended != null) {
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eps.setStrokeColor(mapper.toColor(extended));
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}
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if (dim == null) {
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dim = getMinMax(x, y, getOutline(textLayout).getPathIterator(null));
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}
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// final FontMetrics fm = font.getFontMetrics();
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final double ypos = (dim.getMinY() + dim.getMaxY() * 2) / 3;
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eps.setStrokeWidth(1.3, 0, 0);
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eps.epsLine(x, ypos, x + dim.getWidth(), ypos);
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eps.setStrokeWidth(1, 0, 0);
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}
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}
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private Shape getOutline(final TextLayout textLayout) {
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return textLayout.getOutline(null);
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}
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private void drawAsText(UText shape, double x, double y, UParam param, EpsGraphics eps, ColorMapper mapper) {
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final FontConfiguration fontConfiguration = shape.getFontConfiguration();
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// final FontMetrics fm =
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// g2dummy.getFontMetrics(fontConfiguration.getFont().getFont());
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// final double ypos = y - fm.getDescent() + 0.5;
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final double ypos = y - 1;
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eps.setStrokeColor(mapper.toColor(fontConfiguration.getColor()));
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((EpsGraphicsMacroAndText) eps).drawText(shape.getText(), fontConfiguration, x, ypos);
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}
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static void drawPathIterator(EpsGraphics eps, double x, double y, Shape shape) {
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final List<Integer> breaks = analyze(shape);
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if (breaks.size() == 0) {
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final PathIterator path = shape.getPathIterator(null);
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drawSingle(eps, x, y, path);
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return;
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}
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// System.err.println("breaks=" + breaks);
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final PathIterator path = new PathIteratorLimited(shape, 0, breaks.get(0));
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drawSingle(eps, x, y, path);
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for (int i = 0; i < breaks.size() - 1; i++) {
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final PathIterator path2 = new PathIteratorLimited(shape, breaks.get(i) + 1, breaks.get(i + 1));
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drawSingle(eps, x, y, path2);
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}
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final PathIterator path3 = new PathIteratorLimited(shape, breaks.get(breaks.size() - 1) + 1, Integer.MAX_VALUE);
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drawSingle(eps, x, y, path3);
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}
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private static void drawSingle(EpsGraphics eps, double x, double y, final PathIterator path) {
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eps.newpath();
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final double coord[] = new double[6];
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while (path.isDone() == false) {
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final int code = path.currentSegment(coord);
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if (code == PathIterator.SEG_MOVETO) {
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eps.moveto(coord[0] + x, coord[1] + y);
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} else if (code == PathIterator.SEG_LINETO) {
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eps.lineto(coord[0] + x, coord[1] + y);
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} else if (code == PathIterator.SEG_CLOSE) {
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eps.closepath();
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} else if (code == PathIterator.SEG_CUBICTO) {
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eps.curveto(coord[0] + x, coord[1] + y, coord[2] + x, coord[3] + y, coord[4] + x, coord[5] + y);
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} else if (code == PathIterator.SEG_QUADTO) {
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eps.quadto(coord[0] + x, coord[1] + y, coord[2] + x, coord[3] + y);
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} else {
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throw new UnsupportedOperationException("code=" + code);
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}
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path.next();
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}
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eps.fill(path.getWindingRule());
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}
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private static List<Integer> analyze(Shape shape) {
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int count = PathIteratorLimited.count(shape);
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final List<Integer> closings = getClosings(shape.getPathIterator(null));
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final List<Integer> result = new ArrayList<Integer>();
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for (Integer cl : closings) {
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if (cl + 2 >= count) {
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break;
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}
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final PathIterator path1 = new PathIteratorLimited(shape, 0, cl);
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final PathIterator path2 = new PathIteratorLimited(shape, cl + 1, Integer.MAX_VALUE);
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final double max1 = getMinMax(0, 0, path1).getMaxX();
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final double min2 = getMinMax(0, 0, path2).getMinX();
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if (min2 > max1) {
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result.add(cl);
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}
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}
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return result;
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}
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private static List<Integer> getClosings(PathIterator path) {
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final List<Integer> result = new ArrayList<Integer>();
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int current = 0;
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final double coord[] = new double[6];
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while (path.isDone() == false) {
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final int code = path.currentSegment(coord);
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if (code == PathIterator.SEG_CLOSE) {
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result.add(current);
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}
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current++;
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path.next();
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}
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return result;
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}
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static private MinMax getMinMax(double x, double y, PathIterator path) {
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MinMax result = MinMax.getEmpty(false);
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final double coord[] = new double[6];
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while (path.isDone() == false) {
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final int code = path.currentSegment(coord);
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if (code == PathIterator.SEG_MOVETO) {
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result = result.addPoint(coord[0] + x, coord[1] + y);
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} else if (code == PathIterator.SEG_LINETO) {
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result = result.addPoint(coord[0] + x, coord[1] + y);
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} else if (code == PathIterator.SEG_CLOSE) {
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} else if (code == PathIterator.SEG_CUBICTO) {
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result = result.addPoint(coord[0] + x, coord[1] + y);
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result = result.addPoint(coord[2] + x, coord[3] + y);
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result = result.addPoint(coord[4] + x, coord[5] + y);
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} else if (code == PathIterator.SEG_QUADTO) {
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result = result.addPoint(coord[0] + x, coord[1] + y);
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result = result.addPoint(coord[2] + x, coord[3] + y);
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} else {
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throw new UnsupportedOperationException("code=" + code);
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}
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path.next();
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}
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return result;
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}
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}
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