feat: about dialog

launcher/src/me/vinceh121/wanderer/launcher/AboutDialog.java

@@ -0,0 +1,39 @@
+package me.vinceh121.wanderer.launcher;
+
+import java.awt.Desktop;
+import java.io.IOException;
+import java.net.URISyntaxException;
+
+import javax.swing.JDialog;
+import javax.swing.JEditorPane;
+import javax.swing.event.HyperlinkEvent.EventType;
+
+public class AboutDialog extends JDialog {
+	private static final long serialVersionUID = 1L;
+
+	public AboutDialog() {
+		this.setTitle("About Wanderer");
+
+		final JEditorPane txt = new JEditorPane();
+		txt.setEditable(false);
+		txt.addHyperlinkListener(e -> {
+			try {
+				if (e.getEventType() == EventType.ACTIVATED) {
+					Desktop.getDesktop().browse(e.getURL().toURI());
+				}
+			} catch (IOException | URISyntaxException e1) {
+				e1.printStackTrace();
+			}
+		});
+		txt.setContentType("text/html");
+		txt.setText(
+				"<h1>Wanderer</h1>" + "<p>A reimplementation of the 2002 video game Project Nomads by Radon Labs</p>"
+						+ "<p><a href='https://github.com/vinceh121/wanderer'>Source code</a></p>"
+						+ "<p>Licensed under the GNU AGPL V3</p>");
+
+		this.add(txt);
+
+		this.pack();
+		this.setLocationRelativeTo(null);
+	}
+}

launcher/src/me/vinceh121/wanderer/launcher/InstallationInformationDialog.java

@@ -50,7 +50,7 @@ public InstallationInformationDialog() throws StreamReadException, DatabindExcep
 		final JLabel lblVoiceLang = new JLabel("Voice languages");
 		lblVoiceLang.setFont(lblVoiceLang.getFont().deriveFont(Font.BOLD, 16));
 		this.add(lblVoiceLang);
-		
+
 		for (final Locale a : available) {
 			final JCheckBox chkbx = new JCheckBox();
 			chkbx.setEnabled(false);
@@ -60,6 +60,8 @@ public InstallationInformationDialog() throws StreamReadException, DatabindExcep
 			this.add(chkbx);
 		}
 
+		this.setTitle("Installation languages");
 		this.pack();
+		this.setLocationRelativeTo(null);
 	}
 }

launcher/src/me/vinceh121/wanderer/launcher/LauncherFrame.java

@@ -58,6 +58,10 @@ public void windowClosing(final WindowEvent e) {
 			}
 		});
 		mnHelp.add(mntInstallDetails);
+
+		JMenuItem mntAbout = new JMenuItem("About");
+		mntAbout.addActionListener(e -> new AboutDialog().setVisible(true));
+		mnHelp.add(mntAbout);
 	}
 
 	private void onClose() {