/* ======================================================================== * PlantUML : a free UML diagram generator * ======================================================================== * * (C) Copyright 2009-2023, Arnaud Roques * * Project Info:  http://plantuml.com *  * If you like this project or if you find it useful, you can support us at: *  * http://plantuml.com/patreon (only 1$ per month!) * http://plantuml.com/paypal *  * This file is part of PlantUML. * * PlantUML is free software; you can redistribute it and/or modify it * under the terms of the GNU 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 General Public * License for more details. * * You should have received a copy of the GNU General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, * USA. * * * Original Author:  Arnaud Roques *  * */package net.sourceforge.plantuml.svek;import java.awt.Color;import java.awt.image.BufferedImage;import java.util.ArrayList;import java.util.List;import net.sourceforge.plantuml.BackSlash;import net.sourceforge.plantuml.OptionPrint;import net.sourceforge.plantuml.StringUtils;import net.sourceforge.plantuml.awt.geom.Dimension2D;import net.sourceforge.plantuml.command.CommandExecutionResult;import net.sourceforge.plantuml.cucadiagram.dot.GraphvizUtils;import net.sourceforge.plantuml.flashcode.FlashCodeFactory;import net.sourceforge.plantuml.flashcode.FlashCodeUtils;import net.sourceforge.plantuml.fun.IconLoader;import net.sourceforge.plantuml.graphic.AbstractTextBlock;import net.sourceforge.plantuml.graphic.GraphicPosition;import net.sourceforge.plantuml.graphic.GraphicStrings;import net.sourceforge.plantuml.graphic.HorizontalAlignment;import net.sourceforge.plantuml.graphic.QuoteUtils;import net.sourceforge.plantuml.graphic.StringBounder;import net.sourceforge.plantuml.graphic.TextBlock;import net.sourceforge.plantuml.graphic.TextBlockUtils;import net.sourceforge.plantuml.ugraphic.AffineTransformType;import net.sourceforge.plantuml.ugraphic.PixelImage;import net.sourceforge.plantuml.ugraphic.UGraphic;import net.sourceforge.plantuml.ugraphic.UImage;import net.sourceforge.plantuml.ugraphic.color.HColor;import net.sourceforge.plantuml.ugraphic.color.HColorUtils;import net.sourceforge.plantuml.version.PSystemVersion;import net.sourceforge.plantuml.version.Version;public class GraphvizCrash extends AbstractTextBlock implements IEntityImage {	private final TextBlock text1;	private final BufferedImage flashCode;	private final String text;	private final boolean graphviz244onWindows;	public GraphvizCrash(String text, boolean graphviz244onWindows, Throwable rootCause) {		this.text = text;		this.graphviz244onWindows = graphviz244onWindows;		final FlashCodeUtils utils = FlashCodeFactory.getFlashCodeUtils();		this.flashCode = utils.exportFlashcode(text, Color.BLACK, Color.WHITE);		this.text1 = GraphicStrings.createBlackOnWhite(init(rootCause), IconLoader.getRandom(),				GraphicPosition.BACKGROUND_CORNER_TOP_RIGHT);	}	public static List<String> anErrorHasOccured(Throwable exception, String text) {		final List<String> strings = new ArrayList<>();		if (exception == null) {			strings.add("An error has occured!");		} else {			strings.add("An error has occured : " + exception);		}		final String quote = StringUtils.rot(QuoteUtils.getSomeQuote());		strings.add("<i>" + quote);		strings.add(" ");		strings.add("Diagram size: " + lines(text) + " lines / " + text.length() + " characters.");		strings.add(" ");		return strings;	}	private static int lines(String text) {		int result = 0;		for (int i = 0; i < text.length(); i++) {			if (text.charAt(i) == BackSlash.CHAR_NEWLINE) {				result++;			}		}		return result;	}	public static void checkOldVersionWarning(List<String> strings) {		final long days = (System.currentTimeMillis() - Version.compileTime()) / 1000L / 3600 / 24;		if (days >= 90) {			strings.add(" ");			strings.add("<b>This version of PlantUML is " + days + " days old, so you should");			strings.add("<b>consider upgrading from https://plantuml.com/download");		}	}	public static void pleaseGoTo(List<String> strings) {		strings.add(" ");		strings.add("Please go to https://plantuml.com/graphviz-dot to check your GraphViz version.");		strings.add(" ");	}	public static void youShouldSendThisDiagram(List<String> strings) {		strings.add("You should send this diagram and this image to <b>plantuml@gmail.com</b> or");		strings.add("post to <b>https://plantuml.com/qa</b> to solve this issue.");		strings.add("You can try to turn arround this issue by simplifing your diagram.");	}	public static void thisMayBeCaused(final List<String> strings) {		strings.add("This may be caused by :");		strings.add(" - a bug in PlantUML");		strings.add(" - a problem in GraphViz");	}	private List<String> init(Throwable rootCause) {		final List<String> strings = anErrorHasOccured(null, text);		strings.add("For some reason, dot/GraphViz has crashed.");		strings.add("");		strings.add("RootCause " + rootCause);		if (rootCause != null) {			strings.addAll(CommandExecutionResult.getStackTrace(rootCause));		}		strings.add("");		strings.add("This has been generated with PlantUML (" + Version.versionString() + ").");		checkOldVersionWarning(strings);		strings.add(" ");		addProperties(strings);		strings.add(" ");		try {			final String dotVersion = GraphvizUtils.dotVersion();			strings.add("Default dot version: " + dotVersion);		} catch (Throwable e) {			strings.add("Cannot determine dot version: " + e.toString());		}		pleaseGoTo(strings);		youShouldSendThisDiagram(strings);		if (flashCode != null) {			addDecodeHint(strings);		}		return strings;	}	private List<String> getText2() {		final List<String> strings = new ArrayList<>();		strings.add(" ");		strings.add("<b>It looks like you are running GraphViz 2.44 under Windows.");		strings.add("If you have just installed GraphViz, you <i>may</i> have to execute");		strings.add("the post-install command <b>dot -c</b> like in the following example:");		return strings;	}	private List<String> getText3() {		final List<String> strings = new ArrayList<>();		strings.add(" ");		strings.add("You may have to have <i>Administrator rights</i> to avoid the following error message:");		return strings;	}	public static void addDecodeHint(final List<String> strings) {		strings.add(" ");		strings.add(" Diagram source: (Use http://zxing.org/w/decode.jspx to decode the qrcode)");	}	public static void addProperties(final List<String> strings) {		strings.addAll(OptionPrint.interestingProperties());		strings.addAll(OptionPrint.interestingValues());	}	public boolean isHidden() {		return false;	}	public HColor getBackcolor() {		return HColorUtils.WHITE;	}	public Dimension2D calculateDimension(StringBounder stringBounder) {		return getMain().calculateDimension(stringBounder);	}	public void drawU(UGraphic ug) {		getMain().drawU(ug);	}	private TextBlock getMain() {		TextBlock result = text1;		if (flashCode != null) {			final UImage flash = new UImage(new PixelImage(flashCode, AffineTransformType.TYPE_NEAREST_NEIGHBOR))					.scale(3);			result = TextBlockUtils.mergeTB(result, flash, HorizontalAlignment.LEFT);		}		if (graphviz244onWindows) {			final TextBlock text2 = GraphicStrings.createBlackOnWhite(getText2());			result = TextBlockUtils.mergeTB(result, text2, HorizontalAlignment.LEFT);			final UImage dotc = new UImage(new PixelImage(PSystemVersion.getDotc(), AffineTransformType.TYPE_BILINEAR));			result = TextBlockUtils.mergeTB(result, dotc, HorizontalAlignment.LEFT);			final TextBlock text3 = GraphicStrings.createBlackOnWhite(getText3());			result = TextBlockUtils.mergeTB(result, text3, HorizontalAlignment.LEFT);			final UImage dotd = new UImage(new PixelImage(PSystemVersion.getDotd(), AffineTransformType.TYPE_BILINEAR));			result = TextBlockUtils.mergeTB(result, dotd, HorizontalAlignment.LEFT);		}		return result;	}	public ShapeType getShapeType() {		return ShapeType.RECTANGLE;	}	public Margins getShield(StringBounder stringBounder) {		return Margins.NONE;	}	public double getOverscanX(StringBounder stringBounder) {		return 0;	}}