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PlantUML is a component that allows to quickly write diagrams from text.
There is a newer version: 1.2024.8
// 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!)
 * https://plantuml.com/liberapay (only 1€ per month!)
 * https://plantuml.com/paypal
 *
 *
 * PlantUML is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License V2.
 *
 * THE ACCOMPANYING PROGRAM IS PROVIDED UNDER THE TERMS OF THIS ECLIPSE PUBLIC
 * LICENSE ("AGREEMENT"). [GNU General Public License V2]
 *
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THE PROGRAM CONSTITUTES
 * RECIPIENT'S ACCEPTANCE OF THIS AGREEMENT.
 *
 * You may obtain a copy of the License at
 *
 * https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 *
 * 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 GPL v2 license.
 *
 * The generated images can then be used without any reference to the GPL v2 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
 * by any license, then the generated images are logically covered
 * 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.swing;

import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.List;

import javax.swing.BorderFactory;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComponent;
import javax.swing.JEditorPane;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.WindowConstants;
import javax.swing.border.BevelBorder;
import javax.swing.border.CompoundBorder;

import net.sourceforge.plantuml.version.License;
import net.sourceforge.plantuml.version.PSystemVersion;
import net.sourceforge.plantuml.version.Version;

class LicenseWindow extends JFrame {

	/*
	 * - the PlantUML version - the Dot version - the PlantUML authors - the
	 * PlantUML license
	 */
	public LicenseWindow() {
		super();
		setIconImage(PSystemVersion.getPlantumlSmallIcon2());

		this.setTitle("Licence PlantUML (" + Version.versionString() + ")");

		getContentPane().add(getNorthLabel(), BorderLayout.NORTH);
		final List list = new ArrayList<>(License.getCurrent().getTextFull());
		getContentPane().add(getJComponent(list), BorderLayout.CENTER);
		getContentPane().add(getSouthLabel(), BorderLayout.SOUTH);

		setSize(800, 600);
		this.setLocationRelativeTo(this.getParent());
		setVisible(true);
		setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
	}

	private JComponent getNorthLabel() {
		final JLabel text = new JLabel("PlantUML (" + Version.versionString() + ")");
		final Font font = text.getFont().deriveFont(Font.BOLD, (float) 20.0);
		text.setFont(font);
		final JPanel ptext = new JPanel();
		ptext.add(text);

		final JLabel icon = new JLabel(new ImageIcon(PSystemVersion.getPlantumlImage()));

		final JPanel result = new JPanel(new BorderLayout());
		result.add(ptext, BorderLayout.CENTER);
		result.add(icon, BorderLayout.EAST);

		return result;
	}

	private JComponent getSouthLabel() {
		final JPanel result = new JPanel();
		final JButton ok = new JButton("OK");
		ok.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent ae) {
				dispose();
			}
		});
		result.add(ok);
		return result;
	}

	private JComponent getJComponent(List lines) {
		final StringBuilder sb = new StringBuilder("");
		for (String s : lines) {
			sb.append(s + "");
			sb.append("
");
		}
		sb.append("");
		final JEditorPane text = new JEditorPane("text/html", sb.toString());
		text.setEditable(false);
		CompoundBorder border = new CompoundBorder(BorderFactory.createEtchedBorder(BevelBorder.RAISED),
				BorderFactory.createEmptyBorder(5, 5, 5, 5));
		border = new CompoundBorder(BorderFactory.createMatteBorder(5, 5, 5, 5, getBackground()), border);

		text.setBorder(border);

		final JScrollPane jScrollPane = new JScrollPane(text, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
				JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

		javax.swing.SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				jScrollPane.getVerticalScrollBar().setValue(0);
			}
		});

		return jScrollPane;
	}

	public static void main(String arg[]) {
		new LicenseWindow();
	}

}