Add new GUI code from windowbuilder, fix a thing

src/main/java/link/infra/packwiz/installer/ui/ExceptionListWindow.java

@@ -0,0 +1,201 @@
+package link.infra.packwiz.installer.ui;
+
+import link.infra.packwiz.installer.ui.IExceptionDetails.ExceptionListResult;
+
+import javax.swing.*;
+import javax.swing.border.EmptyBorder;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.io.StringWriter;
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+
+public class ExceptionListWindow extends JDialog {
+
+	private static final long serialVersionUID = 1L;
+	private final JPanel contentPanel = new JPanel();
+	private final JTextArea lblExceptionStacktrace;
+
+	/**
+	 * Create the dialog.
+	 */
+	public ExceptionListWindow(List<IExceptionDetails> eList, CompletableFuture<ExceptionListResult> future, int numTotal, JFrame parentWindow) {
+		super(parentWindow, "Failed file downloads", true);
+
+		setBounds(100, 100, 540, 340);
+		setLocationRelativeTo(parentWindow);
+		getContentPane().setLayout(new BorderLayout());
+		{
+			JPanel errorPanel = new JPanel();
+			getContentPane().add(errorPanel, BorderLayout.NORTH);
+			{
+				JLabel lblWarning = new JLabel("One or more errors were encountered while installing the modpack!");
+				lblWarning.setIcon(UIManager.getIcon("OptionPane.warningIcon"));
+				errorPanel.add(lblWarning);
+			}
+		}
+		contentPanel.setBorder(new EmptyBorder(5, 5, 5, 5));
+		getContentPane().add(contentPanel, BorderLayout.CENTER);
+		contentPanel.setLayout(new BorderLayout(0, 0));
+		{
+			JSplitPane splitPane = new JSplitPane();
+			splitPane.setResizeWeight(0.3);
+			contentPanel.add(splitPane);
+			{
+				lblExceptionStacktrace = new JTextArea("Select a file");
+				lblExceptionStacktrace.setBackground(UIManager.getColor("List.background"));
+				lblExceptionStacktrace.setOpaque(true);
+				lblExceptionStacktrace.setWrapStyleWord(true);
+				lblExceptionStacktrace.setLineWrap(true);
+				lblExceptionStacktrace.setEditable(false);
+				lblExceptionStacktrace.setFocusable(true);
+				lblExceptionStacktrace.setFont(UIManager.getFont("Label.font"));
+				lblExceptionStacktrace.setBorder(new EmptyBorder(5, 5, 5, 5));
+				JScrollPane scrollPane = new JScrollPane(lblExceptionStacktrace);
+				scrollPane.setBorder(new EmptyBorder(0, 0, 0, 0));
+				splitPane.setRightComponent(scrollPane);
+			}
+			{
+				JList<String> list = new JList<String>();
+				list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+				list.setBorder(new EmptyBorder(5, 5, 5, 5));
+				ExceptionListModel listModel = new ExceptionListModel(eList);
+				list.setModel(listModel);
+				list.addListSelectionListener(new ListSelectionListener() {
+					@Override
+					public void valueChanged(ListSelectionEvent e) {
+						int i = list.getSelectedIndex();
+						if (i > -1) {
+							StringWriter sw = new StringWriter();
+							listModel.getExceptionAt(i).printStackTrace(new PrintWriter(sw));
+							lblExceptionStacktrace.setText(sw.toString());
+							// Scroll to the top
+							lblExceptionStacktrace.setCaretPosition(0);
+						} else {
+							lblExceptionStacktrace.setText("Select a file");
+						}
+					}
+				});
+				JScrollPane scrollPane = new JScrollPane(list);
+				scrollPane.setBorder(new EmptyBorder(0, 0, 0, 0));
+				splitPane.setLeftComponent(scrollPane);
+			}
+		}
+		{
+			JPanel buttonPane = new JPanel();
+			getContentPane().add(buttonPane, BorderLayout.SOUTH);
+			buttonPane.setLayout(new BorderLayout(0, 0));
+			{
+				JPanel rightButtons = new JPanel();
+				buttonPane.add(rightButtons, BorderLayout.EAST);
+				{
+					JButton btnContinue = new JButton("Continue");
+					btnContinue.setToolTipText("Attempt to continue installing, excluding the failed downloads");
+					btnContinue.addActionListener(new ActionListener() {
+						@Override
+						public void actionPerformed(ActionEvent e) {
+							future.complete(ExceptionListResult.CONTINUE);
+							ExceptionListWindow.this.dispose();
+						}
+					});
+					rightButtons.add(btnContinue);
+				}
+				{
+					JButton btnCancelLaunch = new JButton("Cancel launch");
+					btnCancelLaunch.setToolTipText("Stop launching the game");
+					btnCancelLaunch.addActionListener(new ActionListener() {
+						@Override
+						public void actionPerformed(ActionEvent e) {
+							future.complete(ExceptionListResult.CANCEL);
+							ExceptionListWindow.this.dispose();
+						}
+					});
+					rightButtons.add(btnCancelLaunch);
+				}
+				{
+					JButton btnIgnoreUpdate = new JButton("Ignore update");
+					btnIgnoreUpdate.setToolTipText("Start the game without attempting to update");
+					btnIgnoreUpdate.addActionListener(new ActionListener() {
+						@Override
+						public void actionPerformed(ActionEvent e) {
+							future.complete(ExceptionListResult.IGNORE);
+							ExceptionListWindow.this.dispose();
+						}
+					});
+					rightButtons.add(btnIgnoreUpdate);
+					{
+						JLabel lblErrored = new JLabel(eList.size() + "/" + numTotal + " errored");
+						lblErrored.setHorizontalAlignment(SwingConstants.CENTER);
+						buttonPane.add(lblErrored, BorderLayout.CENTER);
+					}
+					{
+						JPanel leftButtons = new JPanel();
+						buttonPane.add(leftButtons, BorderLayout.WEST);
+						{
+							JButton btnReportIssue = new JButton("Report issue");
+							boolean supported = Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.BROWSE);
+							btnReportIssue.setEnabled(supported);
+							if (supported) {
+								btnReportIssue.addActionListener(new ActionListener() {
+									@Override
+									public void actionPerformed(ActionEvent e) {
+										try {
+											Desktop.getDesktop().browse(new URI("https://github.com/comp500/packwiz-installer/issues/new"));
+										} catch (IOException | URISyntaxException e1) {
+											// lol the button just won't work i guess
+										}
+									}
+								});
+							}
+							leftButtons.add(btnReportIssue);
+						}
+					}
+				}
+			}
+		}
+		addWindowListener(new WindowAdapter() {
+			@Override
+			public void windowClosing(WindowEvent e) {
+				future.complete(ExceptionListResult.CANCEL);
+			}
+
+			@Override
+			public void windowClosed(WindowEvent e) {
+				// Just in case closing didn't get triggered - if something else called dispose() the
+				// future will have already completed
+				future.complete(ExceptionListResult.CANCEL);
+			}
+		});
+	}
+
+	private static class ExceptionListModel extends AbstractListModel<String> {
+		private static final long serialVersionUID = 1L;
+		private final List<IExceptionDetails> details;
+
+		public ExceptionListModel(List<IExceptionDetails> details) {
+			this.details = details;
+		}
+
+		public int getSize() {
+			return details.size();
+		}
+
+		public String getElementAt(int index) {
+			return details.get(index).getName();
+		}
+
+		public Exception getExceptionAt(int index) {
+			return details.get(index).getException();
+		}
+	}
+
+}

src/main/java/link/infra/packwiz/installer/ui/IExceptionDetails.java

@@ -0,0 +1,10 @@
+package link.infra.packwiz.installer.ui;
+
+public interface IExceptionDetails {
+	Exception getException();
+	String getName();
+
+	enum ExceptionListResult {
+		CONTINUE, CANCEL, IGNORE
+	}
+}

src/main/java/link/infra/packwiz/installer/ui/OptionsSelectWindow.java

@@ -77,7 +77,6 @@ public class OptionsSelectWindow extends JDialog implements ActionListener {
 				lblOptionDescription.setOpaque(true);
 				lblOptionDescription.setWrapStyleWord(true);
 				lblOptionDescription.setLineWrap(true);
-				lblOptionDescription.setOpaque(true);
 				lblOptionDescription.setEditable(false);
 				lblOptionDescription.setFocusable(false);
 				lblOptionDescription.setFont(UIManager.getFont("Label.font"));