Adds unfinished code showing the idea of how dockable tabs are supposed to be implemented

Also makes the control servers tab hidden if the servers are not running

README.md

@@ -1,6 +1,13 @@
 # Minecraft-Server-Launcher
-I originally created this software in 2013 using AutoIt. Since I am now learning Java, I have recreated it in Java.
+I originally created this software in 2013 using AutoIt. After learning Java, I recreated it in Java.
 The original version can be found at: https://archive.knarcraft.net/Scripts/BungeeMinecraftServerLauncher/
-Its goal is to do everything the original does, just better. The original is 1595 lines of code repetition and dirty code. I had no prior programming experience when I first started working on the original, which is why it became such a mess.
+This version's goal is to do everything the original does, just better. The original is 1595 lines of code repetition 
+and dirty code. I had no prior programming experience when I first started working on the original, which is why it 
+became such a mess.
 
-The code is now in a fully working state. It is still missing an auto update feature, but it can be used, and is fully functional.
+The software is in a fully working stage with a functional updater. The software is still in beta because there are still
+a lot of things I want to change and small annoyances. The software is fully portable. Make sure to put it in its own
+folder as it will create lots of files.
+
+The updater will move the new version to minecraft-server-launcher.jar, so you should rename the downloaded
+file to this if it's named something else to avoid confusion.

src/main/java/net/knarcraft/minecraftserverlauncher/profile/Profile.java

@@ -11,6 +11,7 @@ import javax.naming.ConfigurationException;
 import javax.swing.*;
 import java.io.IOException;
 import java.util.ArrayList;
+import java.util.List;
 
 /**
  * Keeps track of a set of servers and some user settings
@@ -22,7 +23,7 @@ import java.util.ArrayList;
 public class Profile {
 
     private static final ServerLauncherGUI serverLauncherGui = Main.getController().getGUI();
-    private final ArrayList<Collection> collections;
+    private final List<Collection> collections;
     private final String name;
     private boolean runInBackground;
     private int delayStartup;
@@ -106,7 +107,7 @@ public class Profile {
      *
      * @return <p>All collections stored by this profile</p>
      */
-    public ArrayList<Collection> getCollections() {
+    public List<Collection> getCollections() {
         return this.collections;
     }
 
@@ -140,14 +141,16 @@ public class Profile {
      * @param name <p>The name of the collection and its elements</p>
      */
     public void addCollection(String name) throws ConfigurationException {
-        if (name == null) { //If a user cancels or crosses out window
+        //Skip if no name was given
+        if (name == null) {
             return;
         }
         if (getCollection(name) == null && !name.equals("All") && CommonFunctions.nameIsValid(name)) {
             collections.add(new Collection(name));
         } else {
-            serverLauncherGui.showError("A server name must my unique and not empty or \"All\"." +
+            serverLauncherGui.showError("A server name must be unique and not empty. " +
-                    "It can't contain any of the characters \"!\", \"?\" or \";\".");
+                    "In addition, a server cannot be named: \"All\". " +
+                    "It cannot contain any of the characters \"!\", \"?\" or \";\".");
         }
     }
 

src/main/java/net/knarcraft/minecraftserverlauncher/profile/ServerLauncherController.java

@@ -379,7 +379,7 @@ public class ServerLauncherController {
      * Updates the GUI as necessary to display loaded data
      */
     private void executeGUILoadingTasks() {
-        this.serverLauncherGUI.updateProfiles();
+        this.serverLauncherGUI.getControlPanelTab().updateProfiles();
         this.serverLauncherGUI.updateWithSavedProfileData();
         this.currentProfile.updateConsoles();
         if (this.downloadAllJars) {

src/main/java/net/knarcraft/minecraftserverlauncher/server/Server.java

@@ -326,9 +326,10 @@ public class Server {
     /**
      * Runs a Minecraft server
      *
+     * @param skipDelay <p>Whether to skip the startup delay for this server</p>
      * @return <p>True if nothing went wrong</p>
      */
-    public boolean runServer(boolean isFirstServer) {
+    public boolean runServer(boolean skipDelay) {
         if (ServerHandler.stoppingServers()) {
             gui.logMessage("Stopping servers. Cannot start yet.");
             return false;
@@ -339,12 +340,13 @@ public class Server {
             return true;
         }
         //Tries to do necessary pre-start work
-        if (!initializeJarDownload() || (!isFirstServer && !delayStartup())) {
+        if (!initializeJarDownload() || (!skipDelay && !delayStartup())) {
             gui.logError("Failed to perform startup tasks.");
             this.started = false;
             return false;
         }
         if (ServerHandler.stoppingServers()) {
+            gui.logMessage("Stopping servers. Cannot start yet.");
             return false;
         }
         //Starts the server if possible
@@ -367,14 +369,17 @@ public class Server {
      */
     private String getJavaCommand() {
         ServerLauncherController controller = ServerLauncherController.getInstance();
+
         if (serverVersion.toLowerCase().contains("latest")) {
             return controller.getJavaCommand();
-        } else if (serverVersion.contains(".") && serverVersion.split("\\.").length >= 2 &&
+        } else if (serverVersion.contains(".") && serverVersion.split("\\.").length >= 2) {
-                Integer.parseInt(serverVersion.split("\\.")[1]) >= 17) {
+            try {
+                if (Integer.parseInt(serverVersion.split("\\.")[1]) >= 17) {
                     return controller.getJavaCommand();
-        } else {
-            return controller.getOldJavaCommand();
                 }
+            } catch (NumberFormatException ignored) {}
+        }
+        return controller.getOldJavaCommand();
     }
 
     /**

src/main/java/net/knarcraft/minecraftserverlauncher/server/ServerHandler.java

@@ -117,9 +117,11 @@ public class ServerHandler {
     public static void startServers() {
         ServerLauncherController controller = Main.getController();
         gui.setStatus("Starting servers");
-        int serverNum = 0;
+        Server previouslyStartedServer = null;
+
         for (Collection collection : controller.getCurrentProfile().getCollections()) {
-            if (!collection.getServer().runServer(serverNum++ == 0)) {
+            Server server = collection.getServer();
+            if (!server.runServer(previouslyStartedServer == null || previouslyStartedServer.isProxy())) {
                 gui.showError("An error occurred. Start aborted. Please check relevant log files.");
                 try {
                     stop();
@@ -129,6 +131,9 @@ public class ServerHandler {
                 gui.updateGUIElementsWhenServersStartOrStop(false);
                 return;
             }
+            if (server.isEnabled()) {
+                previouslyStartedServer = server;
+            }
         }
     }
 

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/BackupGUI.java

@@ -0,0 +1,106 @@
+package net.knarcraft.minecraftserverlauncher.userinterface;
+
+import net.knarcraft.minecraftserverlauncher.utility.BackupUtil;
+
+import javax.imageio.ImageIO;
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+
+import static net.knarcraft.minecraftserverlauncher.utility.CommonFunctions.getResourceAsStream;
+
+/**
+ * The Backup GUI is used to display backup progress
+ */
+public class BackupGUI implements ActionListener {
+    private static JFrame frame;
+    private static JTextArea progressTextArea;
+    private static JProgressBar progressBar;
+    private static JButton cancelButton;
+
+    /**
+     * Instantiates a new GUI
+     */
+    public BackupGUI() {
+        instantiate();
+    }
+
+    /**
+     * Initializes the server consoles frame
+     */
+    public void instantiate() {
+        if (frame != null) {
+            return;
+        }
+        frame = new JFrame("Running backup...");
+        frame.setBounds(100, 100, 500, 140);
+        frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
+        ImageIcon img;
+        try {
+            img = new ImageIcon(ImageIO.read(getResourceAsStream("GUIIcon.png")));
+            frame.setIconImage(img.getImage());
+        } catch (IOException ignored) {
+        }
+
+        progressTextArea = new JTextArea();
+        progressTextArea.setEditable(false);
+        progressBar = new JProgressBar();
+        cancelButton = new JButton("Cancel");
+        JPanel panel = new JPanel();
+        panel.setLayout(new BoxLayout(panel, BoxLayout.PAGE_AXIS));
+        panel.add(progressTextArea);
+        panel.add(Box.createRigidArea(new Dimension(0,5)));
+        panel.add(progressBar);
+
+        JPanel buttonPane = new JPanel();
+        buttonPane.setLayout(new BoxLayout(buttonPane, BoxLayout.LINE_AXIS));
+        buttonPane.setBorder(BorderFactory.createEmptyBorder(0, 10, 10, 10));
+        buttonPane.add(Box.createHorizontalGlue());
+        buttonPane.add(cancelButton);
+        cancelButton.addActionListener(BackupGUI.this);
+
+        panel.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
+        Container contentPane = frame.getContentPane();
+        contentPane.add(panel, BorderLayout.CENTER);
+        contentPane.add(buttonPane, BorderLayout.PAGE_END);
+        frame.setVisible(true);
+    }
+
+    /**
+     * Updates information about the backup progress
+     *
+     * @param infoText <p>The text to display</p>
+     * @param progressPercent <p>The new percent of the progress bar</p>
+     */
+    public static void updateProgress(String infoText, int progressPercent) {
+        if (progressTextArea != null) {
+            progressTextArea.setText(infoText);
+        }
+        if (progressBar != null) {
+            progressBar.setValue(progressPercent);
+        }
+    }
+
+    /**
+     * Destroys the backup GUI
+     */
+    public static void destroy() {
+        if (frame != null) {
+            frame.dispose();
+            frame = null;
+            progressBar = null;
+            progressTextArea = null;
+            cancelButton = null;
+        }
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        if (actionEvent.getSource() == cancelButton) {
+            BackupUtil.abortBackup();
+            destroy();
+        }
+    }
+}

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/CloseTabActionListener.java

@@ -0,0 +1,47 @@
+package net.knarcraft.minecraftserverlauncher.userinterface;
+
+import net.knarcraft.minecraftserverlauncher.Main;
+import net.knarcraft.minecraftserverlauncher.profile.ServerLauncherController;
+
+import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+/**
+ * Listener for clicking the close button of a server tab
+ */
+public class CloseTabActionListener implements ActionListener {
+
+    private final String tabName;
+    private final JTabbedPane tabPane;
+
+    /**
+     * Instantiates a new close tab action listener
+     * @param tabPane <p>The tab pane containing all tabs</p>
+     * @param tabName <p>The name of the tab connected to this action listener</p>
+     */
+    public CloseTabActionListener(JTabbedPane tabPane, String tabName) {
+        this.tabName = tabName;
+        this.tabPane = tabPane;
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent evt) {
+        int index = tabPane.indexOfTab(tabName);
+        if (index >= 0) {
+            //Abort if the user just mis-clicked
+            int answer = JOptionPane.showConfirmDialog(null,
+                    String.format("Do you really want to remove the server %s?", tabName), "Remove server",
+                    JOptionPane.YES_NO_OPTION
+            );
+            if (answer == JOptionPane.YES_NO_OPTION) {
+                //Remove the server
+                ServerLauncherController controller = Main.getController();
+                controller.getCurrentProfile().removeCollection(tabName);
+                controller.getGUI().updateWithSavedProfileData();
+                controller.getCurrentProfile().updateConsoles();
+            }
+        }
+    }
+
+}

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/Console.java

@@ -93,7 +93,7 @@ public class Console extends KeyAdapter implements ActionListener, KeyListener {
         StringBuilder newTextBuilder = new StringBuilder();
         for (String line : oldTextList) {
             if (!line.equals("")) {
-                newTextBuilder.append(line);
+                newTextBuilder.append(line).append("\n");
             }
         }
         this.textOutput.setText(newTextBuilder.toString());

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ControlPanelTab.java

@@ -0,0 +1,217 @@
+package net.knarcraft.minecraftserverlauncher.userinterface;
+
+import net.knarcraft.minecraftserverlauncher.Main;
+import net.knarcraft.minecraftserverlauncher.profile.ServerLauncherController;
+import net.knarcraft.minecraftserverlauncher.server.ServerHandler;
+import net.knarcraft.minecraftserverlauncher.utility.BackupUtil;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+import java.util.concurrent.Executors;
+
+public class ControlPanelTab implements ActionListener {
+
+    private JButton startServerButton;
+    private JButton stopServerButton;
+    private JButton backupButton;
+    private JButton addProfileButton;
+    private JButton showConsolesButton;
+    private JButton deleteProfileButton;
+    private JComboBox<String> profiles;
+    private final JPanel controlPanelPanel;
+    private final ServerLauncherController controller;
+    private final JLabel statusLabel = new JLabel("Servers are stopped");
+
+    public ControlPanelTab(JPanel controlPanelPanel) {
+        this.controlPanelPanel = controlPanelPanel;
+        this.controller = Main.getController();
+        initialize();
+    }
+
+    /**
+     * Sets the text of the status label
+     * @param text <p>The new text of the status label</p>
+     */
+    public void setStatusText(String text) {
+        this.statusLabel.setText(text);
+    }
+
+    /**
+     * Updates the ServerLauncherGUI components to block a user from doing illegal actions
+     *
+     * @param running <p>Whether the servers are currently running</p>
+     */
+    public void updateGUIElementsWhenServersStartOrStop(boolean running) {
+        boolean stopped = !running; //Most gui is only enabled when the server is stopped rather than running.
+        profiles.setEnabled(stopped);
+        addProfileButton.setEnabled(stopped);
+        deleteProfileButton.setEnabled(stopped);
+        startServerButton.setEnabled(stopped);
+        stopServerButton.setEnabled(running);
+    }
+
+    /**
+     * Stops all servers
+     */
+    public void stopServers() {
+        GUI gui = Main.getController().getGUI();
+        try {
+            gui.setStatus("Servers are stopping...");
+            ServerHandler.stop();
+        } catch (IOException e1) {
+            gui.showError("Could not stop server.");
+            e1.printStackTrace();
+        } catch (InterruptedException e) {
+            gui.showError("Could not kill server.");
+            e.printStackTrace();
+        }
+    }
+
+    /**
+     * Gets the currently selected profile
+     *
+     * @return <p>The currently selected profile or null</p>
+     */
+    public String getSelectedProfile() {
+        Object selectedProfile = profiles.getSelectedItem();
+        if (selectedProfile != null) {
+            return selectedProfile.toString();
+        } else {
+            return null;
+        }
+
+    }
+
+    /**
+     * Updates the profiles combo
+     */
+    public void updateProfiles() {
+        String selectedProfile = Main.getController().getCurrentProfile().getName();
+        this.profiles.removeAllItems();
+        for (String profile : Main.getController().getProfileNames()) {
+            this.profiles.addItem(profile);
+        }
+        this.profiles.setSelectedItem(selectedProfile);
+    }
+
+    /**
+     * Deletes the selected profile
+     */
+    private void deleteProfile() {
+        Object selected = profiles.getSelectedItem();
+        int answer = JOptionPane.showConfirmDialog(null,
+                String.format("Do you really want to remove the profile %s?", selected), "Remove profile",
+                JOptionPane.YES_NO_OPTION
+        );
+        if (answer == JOptionPane.YES_NO_OPTION) {
+            if (selected != null) {
+                controller.removeProfile(selected.toString());
+                updateProfiles();
+            }
+        }
+    }
+
+    /**
+     * Saves the previous profile and loads data from the new profile
+     */
+    private void changeProfile() {
+        controller.saveState();
+        Object current = this.profiles.getSelectedItem();
+        if (current != null) {
+            controller.setCurrentProfile(current.toString());
+        }
+        controller.getGUI().updateWithSavedProfileData();
+        controller.getCurrentProfile().updateConsoles();
+    }
+
+    private void initialize() {
+        SpringLayout springLayout = new SpringLayout();
+        controlPanelPanel.setLayout(springLayout);
+
+        JLabel lblBasicControls = new JLabel("Basic controls");
+        springLayout.putConstraint(SpringLayout.NORTH, lblBasicControls, 10, SpringLayout.NORTH, controlPanelPanel);
+        controlPanelPanel.add(lblBasicControls);
+
+        startServerButton = new JButton("Start servers");
+        springLayout.putConstraint(SpringLayout.WEST, lblBasicControls, 0, SpringLayout.WEST, startServerButton);
+        springLayout.putConstraint(SpringLayout.NORTH, startServerButton, 6, SpringLayout.SOUTH, lblBasicControls);
+        springLayout.putConstraint(SpringLayout.WEST, startServerButton, 10, SpringLayout.WEST, controlPanelPanel);
+        controlPanelPanel.add(startServerButton);
+        startServerButton.addActionListener(this);
+
+        stopServerButton = new JButton("Stop servers");
+        springLayout.putConstraint(SpringLayout.NORTH, stopServerButton, 0, SpringLayout.NORTH, startServerButton);
+        springLayout.putConstraint(SpringLayout.WEST, stopServerButton, 6, SpringLayout.EAST, startServerButton);
+        controlPanelPanel.add(stopServerButton);
+        stopServerButton.addActionListener(this);
+
+        showConsolesButton = new JButton("View server consoles");
+        springLayout.putConstraint(SpringLayout.NORTH, showConsolesButton, 0, SpringLayout.NORTH, stopServerButton);
+        springLayout.putConstraint(SpringLayout.WEST, showConsolesButton, 6, SpringLayout.EAST, stopServerButton);
+        controlPanelPanel.add(showConsolesButton);
+        showConsolesButton.addActionListener(this);
+
+        backupButton = new JButton("Backup");
+        springLayout.putConstraint(SpringLayout.NORTH, backupButton, 0, SpringLayout.NORTH, showConsolesButton);
+        springLayout.putConstraint(SpringLayout.WEST, backupButton, 6, SpringLayout.EAST, showConsolesButton);
+        controlPanelPanel.add(backupButton);
+        backupButton.addActionListener(this);
+
+        JLabel profileLabel = new JLabel("Profile");
+        springLayout.putConstraint(SpringLayout.NORTH, profileLabel, 6, SpringLayout.SOUTH, startServerButton);
+        springLayout.putConstraint(SpringLayout.WEST, profileLabel, 10, SpringLayout.WEST, controlPanelPanel);
+        controlPanelPanel.add(profileLabel);
+
+        addProfileButton = new JButton("+");
+        springLayout.putConstraint(SpringLayout.NORTH, addProfileButton, 6, SpringLayout.SOUTH, profileLabel);
+        springLayout.putConstraint(SpringLayout.WEST, addProfileButton, 10, SpringLayout.WEST, controlPanelPanel);
+        controlPanelPanel.add(addProfileButton);
+        addProfileButton.addActionListener(this);
+
+        deleteProfileButton = new JButton("-");
+        springLayout.putConstraint(SpringLayout.NORTH, deleteProfileButton, 0, SpringLayout.NORTH, addProfileButton);
+        springLayout.putConstraint(SpringLayout.WEST, deleteProfileButton, 6, SpringLayout.EAST, addProfileButton);
+        controlPanelPanel.add(deleteProfileButton);
+        deleteProfileButton.addActionListener(this);
+
+        profiles = new JComboBox<>();
+        springLayout.putConstraint(SpringLayout.NORTH, profiles, 0, SpringLayout.NORTH, addProfileButton);
+        springLayout.putConstraint(SpringLayout.WEST, profiles, 6, SpringLayout.EAST, deleteProfileButton);
+        springLayout.putConstraint(SpringLayout.EAST, profiles, 124, SpringLayout.EAST, deleteProfileButton);
+        controlPanelPanel.add(profiles);
+        profiles.addActionListener(this);
+
+        springLayout.putConstraint(SpringLayout.NORTH, statusLabel, 6, SpringLayout.SOUTH, addProfileButton);
+        springLayout.putConstraint(SpringLayout.SOUTH, statusLabel, -10, SpringLayout.SOUTH, controlPanelPanel);
+        springLayout.putConstraint(SpringLayout.WEST, statusLabel, 10, SpringLayout.WEST, controlPanelPanel);
+        springLayout.putConstraint(SpringLayout.EAST, statusLabel, -10, SpringLayout.EAST, controlPanelPanel);
+        statusLabel.setFont(new Font("", Font.BOLD, 12));
+        controlPanelPanel.add(statusLabel);
+    }
+
+    @Override
+    public void actionPerformed(ActionEvent actionEvent) {
+        Object actionSource = actionEvent.getSource();
+        if (actionSource == startServerButton) {
+            controller.saveState();
+            Executors.newSingleThreadExecutor().execute(ServerHandler::startServers);
+        } else if (actionSource == stopServerButton) {
+            stopServers();
+        } else if (actionSource == backupButton) {
+            //Run backup in its own thread to prevent locking up
+            Executors.newSingleThreadExecutor().execute(() -> BackupUtil.backup(controller.getGUI()));
+        } else if (actionSource == addProfileButton) {
+            controller.addProfile(JOptionPane.showInputDialog("Profile name: "));
+            updateProfiles();
+        } else if (actionSource == deleteProfileButton) {
+            deleteProfile();
+        } else if (actionSource == profiles) {
+            changeProfile();
+        } else if (actionSource == showConsolesButton) {
+            ServerConsoles.setAsVisible();
+        }
+    }
+}

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/JDockableTabbedPane.java

@@ -0,0 +1,35 @@
+package net.knarcraft.minecraftserverlauncher.userinterface;
+
+import javax.swing.*;
+
+/**
+ * An extended JTabbedPane with dockable tabs
+ */
+public class JDockableTabbedPane extends JTabbedPane {
+
+    private String tabbedPaneId;
+
+    public JDockableTabbedPane(String tabbedPaneId) {
+        super();
+        this.tabbedPaneId = tabbedPaneId;
+    }
+
+    public JDockableTabbedPane(String tabbedPaneId, int tabPlacement) {
+        super(tabPlacement);
+        this.tabbedPaneId = tabbedPaneId;
+    }
+
+    public JDockableTabbedPane(String tabbedPaneId, int tabPlacement, int tabLayoutPolicy) {
+        super(tabPlacement, tabLayoutPolicy);
+        this.tabbedPaneId = tabbedPaneId;
+    }
+
+    /**
+     * Gets the id of this tabbed pane
+     * @return <p>The id of this tabbed pane</p>
+     */
+    public String getTabbedPaneId() {
+        return tabbedPaneId;
+    }
+
+}

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ServerConsoles.java

@@ -1,7 +1,11 @@
 package net.knarcraft.minecraftserverlauncher.userinterface;
 
+import javax.imageio.ImageIO;
 import javax.swing.*;
 import java.awt.*;
+import java.io.IOException;
+
+import static net.knarcraft.minecraftserverlauncher.utility.CommonFunctions.getResourceAsStream;
 
 /**
  * This class keeps track of all consoles
@@ -31,6 +35,12 @@ public class ServerConsoles {
             frame.setDefaultCloseOperation(JFrame.HIDE_ON_CLOSE);
             consolesTabbedPane = new JTabbedPane(JTabbedPane.TOP);
             frame.getContentPane().add(consolesTabbedPane, BorderLayout.CENTER);
+            ImageIcon img;
+            try {
+                img = new ImageIcon(ImageIO.read(getResourceAsStream("GUIIcon.png")));
+                frame.setIconImage(img.getImage());
+            } catch (IOException ignored) {
+            }
         }
     }
 

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ServerControlTab.java

@@ -22,7 +22,6 @@ public class ServerControlTab implements ActionListener {
     private JButton customCommandButton;
     private JButton saveServerButton;
     private JButton reloadButton;
-    private JButton showConsolesButton;
     private JTextField customCommandTextField;
 
     private final ServerLauncherController controller = ServerLauncherController.getInstance();
@@ -134,13 +133,6 @@ public class ServerControlTab implements ActionListener {
         springLayout.putConstraint(SpringLayout.EAST, reloadButton, 0, SpringLayout.EAST, opButton);
         controlServers.add(reloadButton);
         reloadButton.addActionListener(this);
-
-        showConsolesButton = new JButton("View server consoles");
-        springLayout.putConstraint(SpringLayout.NORTH, showConsolesButton, 0, SpringLayout.NORTH, saveServerButton);
-        springLayout.putConstraint(SpringLayout.WEST, showConsolesButton, 0, SpringLayout.WEST, lblTargetServer);
-        springLayout.putConstraint(SpringLayout.EAST, showConsolesButton, 0, SpringLayout.EAST, targetServerCombo);
-        controlServers.add(showConsolesButton);
-        showConsolesButton.addActionListener(this);
     }
 
     /**
@@ -181,9 +173,7 @@ public class ServerControlTab implements ActionListener {
         //Registers actions on all commands executed on a specific server
         handleServerCommands(actionSource, selectedServerValue);
 
-        if (actionSource == showConsolesButton) {
+        if (actionSource == targetServerCombo) {
-            ServerConsoles.setAsVisible();
-        } else if (actionSource == targetServerCombo) {
             updatePlayers();
         }
     }

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ServerLauncherGUI.java

@@ -3,12 +3,11 @@ package net.knarcraft.minecraftserverlauncher.userinterface;
 import net.knarcraft.minecraftserverlauncher.Main;
 import net.knarcraft.minecraftserverlauncher.profile.Collection;
 import net.knarcraft.minecraftserverlauncher.profile.ServerLauncherController;
-import net.knarcraft.minecraftserverlauncher.server.ServerHandler;
-import net.knarcraft.minecraftserverlauncher.utility.CommonFunctions;
 
 import javax.imageio.ImageIO;
 import javax.naming.ConfigurationException;
 import javax.swing.*;
+import javax.swing.plaf.basic.BasicButtonUI;
 import java.awt.*;
 import java.awt.event.ActionEvent;
 import java.awt.event.ActionListener;
@@ -18,7 +17,6 @@ import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.Scanner;
-import java.util.concurrent.Executors;
 
 import static javax.swing.WindowConstants.DO_NOTHING_ON_CLOSE;
 import static net.knarcraft.minecraftserverlauncher.utility.CommonFunctions.getResourceAsScanner;
@@ -33,25 +31,19 @@ import static net.knarcraft.minecraftserverlauncher.utility.CommonFunctions.getR
  */
 public class ServerLauncherGUI extends MessageHandler implements ActionListener, GUI {
 
-    private final JLabel lblStatuslabel = new JLabel("Servers are stopped");
     private final ServerLauncherController controller;
     private Map<String, String> textStrings;
     private Tray applicationTray;
 
     private JFrame frame;
-    private JTabbedPane tabbedPane;
+    private JTabbedPane mainTabbedPane;
     private JTabbedPane serversPane;
     private ServerControlTab serverControlTab;
+    private ControlPanelTab controlPanelTab;
     private ServerLauncherMenu serverLauncherMenu;
 
-    //Basic controls
+    private JButton addServerTabButton;
-    private JButton startServerButton;
+    private JButton addServerPaneButton;
-    private JButton stopServerButton;
-    private JButton addServerButton;
-    private JButton backupButton;
-    private JButton addProfileButton;
-    private JButton deleteProfileButton;
-    private JComboBox<String> profiles;
 
     /**
      * Creates the application window
@@ -99,9 +91,17 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
         return this.serversPane;
     }
 
+    /**
+     * Gets this GUI's control panel tab
+     * @return <p>The control panel tab for this GUI</p>
+     */
+    public ControlPanelTab getControlPanelTab() {
+        return this.controlPanelTab;
+    }
+
     @Override
     public void setStatus(String text) {
-        this.lblStatuslabel.setText(text);
+        controlPanelTab.setStatusText(text);
         this.logMessage(text);
     }
 
@@ -120,18 +120,6 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
         return chooser.getSelectedFile();
     }
 
-    /**
-     * Updates the profiles combo
-     */
-    public void updateProfiles() {
-        String selectedProfile = Main.getController().getCurrentProfile().getName();
-        this.profiles.removeAllItems();
-        for (String profile : Main.getController().getProfileNames()) {
-            this.profiles.addItem(profile);
-        }
-        this.profiles.setSelectedItem(selectedProfile);
-    }
-
     /**
      * Gets the server control tab used by this GUI
      *
@@ -160,7 +148,82 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
         serverControlTab.update();
         for (Collection collection : controller.getCurrentProfile().getCollections()) {
             serversPane.addTab(collection.getName(), collection.getServerTab().getPanel());
+            addCloseButtonToServerTab(collection.getName());
         }
+        addAddButtonToServerTab();
+    }
+
+    /**
+     * Adds an add button to the servers tab's tabs
+     */
+    private void addAddButtonToServerTab() {
+        JPanel tabPanel = new JPanel();
+        tabPanel.setLayout(new GridLayout());
+        tabPanel.setOpaque(false);
+
+        JPanel tabContentsPanel = new JPanel(new SpringLayout());
+        serversPane.addTab("Add tab", tabContentsPanel);
+
+        addServerTabButton = getAddServerButton(true);
+        addServerTabButton.addActionListener(this);
+        addServerPaneButton = getAddServerButton(false);
+        addServerPaneButton.addActionListener(this);
+        
+        tabContentsPanel.add(addServerTabButton);
+        tabPanel.add(addServerPaneButton);
+        serversPane.setTabComponentAt(serversPane.getTabCount() - 1, tabPanel);
+    }
+
+    /**
+     * Gets a button for adding a new server
+     * @param displayButtonStyle <p>Whether to show or hide the button's style</p>
+     * @return <p>A new add server button</p>
+     */
+    private JButton getAddServerButton(boolean displayButtonStyle) {
+        JButton addButton = new JButton("+ Add server");
+        if (!displayButtonStyle) {
+            addButton.setBorder(BorderFactory.createEtchedBorder());
+            addButton.setFocusable(false);
+            addButton.setBorderPainted(false);
+            addButton.setContentAreaFilled(false);
+            addButton.setRolloverEnabled(true);
+            addButton.setUI(new BasicButtonUI());
+        }
+        return addButton;
+    }
+
+    /**
+     *
+     * @param serverName <p>The name of the server/tab to add a close button to</p>
+     */
+    private void addCloseButtonToServerTab(String serverName) {
+        int index = serversPane.indexOfTab(serverName);
+        JPanel tabPanel = new JPanel(new GridBagLayout());
+        tabPanel.setOpaque(false);
+        JLabel serverTitleLabel = new JLabel(serverName);
+        JButton removeServerButton = new JButton("(X)");
+        removeServerButton.setBorder(BorderFactory.createEtchedBorder());
+        removeServerButton.setFocusable(false);
+        removeServerButton.setBorderPainted(false);
+        removeServerButton.setContentAreaFilled(false);
+        removeServerButton.setRolloverEnabled(true);
+        removeServerButton.setPreferredSize(new Dimension(18, 17));
+        removeServerButton.setUI(new BasicButtonUI());
+
+        GridBagConstraints gridBagConstraints = new GridBagConstraints();
+        gridBagConstraints.gridx = 0;
+        gridBagConstraints.gridy = 0;
+        gridBagConstraints.weightx = 1;
+
+        tabPanel.add(serverTitleLabel, gridBagConstraints);
+
+        gridBagConstraints.gridx++;
+        gridBagConstraints.weightx = 0;
+        tabPanel.add(removeServerButton, gridBagConstraints);
+
+        serversPane.setTabComponentAt(index, tabPanel);
+
+        removeServerButton.addActionListener(new CloseTabActionListener(serversPane, serverName));
     }
 
     /**
@@ -194,93 +257,30 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
 
         this.serverLauncherMenu = new ServerLauncherMenu(menuBar, this);
 
-        tabbedPane = new JTabbedPane(JTabbedPane.TOP);
+        mainTabbedPane = new JTabbedPane(JTabbedPane.TOP);
-        frame.getContentPane().add(tabbedPane);
+        frame.getContentPane().add(mainTabbedPane);
 
-        JPanel panelBasic = new JPanel();
+        JPanel controlPanelPanel = new JPanel();
-        tabbedPane.addTab("Control panel", null, panelBasic, null);
+        mainTabbedPane.addTab("Control panel", null, controlPanelPanel, null);
-        SpringLayout sl_panel = new SpringLayout();
+        controlPanelTab = new ControlPanelTab(controlPanelPanel);
-        panelBasic.setLayout(sl_panel);
 
-        JLabel lblBasicControls = new JLabel("Basic controls");
+        JPanel controlServersPanel = new JPanel();
-        sl_panel.putConstraint(SpringLayout.NORTH, lblBasicControls, 10, SpringLayout.NORTH, panelBasic);
+        mainTabbedPane.addTab("Control servers", null, controlServersPanel, null);
-        panelBasic.add(lblBasicControls);
+        serverControlTab = new ServerControlTab(frame, controlServersPanel);
 
-        startServerButton = new JButton("Start servers");
+        JPanel serversPanel = new JPanel();
-        sl_panel.putConstraint(SpringLayout.WEST, lblBasicControls, 0, SpringLayout.WEST, startServerButton);
+        mainTabbedPane.addTab("Servers", null, serversPanel, null);
-        sl_panel.putConstraint(SpringLayout.NORTH, startServerButton, 6, SpringLayout.SOUTH, lblBasicControls);
+        SpringLayout serversPanelSpringLayout = new SpringLayout();
-        sl_panel.putConstraint(SpringLayout.WEST, startServerButton, 10, SpringLayout.WEST, panelBasic);
+        serversPanel.setLayout(serversPanelSpringLayout);
-        panelBasic.add(startServerButton);
-        startServerButton.addActionListener(this);
 
-        stopServerButton = new JButton("Stop servers");
+        serversPane = new JTabbedPane(JTabbedPane.TOP);
-        sl_panel.putConstraint(SpringLayout.NORTH, stopServerButton, 0, SpringLayout.NORTH, startServerButton);
+        serversPanelSpringLayout.putConstraint(SpringLayout.NORTH, serversPane, 0, SpringLayout.NORTH, serversPanel);
-        sl_panel.putConstraint(SpringLayout.WEST, stopServerButton, 6, SpringLayout.EAST, startServerButton);
+        serversPanelSpringLayout.putConstraint(SpringLayout.WEST, serversPane, 0, SpringLayout.WEST, serversPanel);
-        panelBasic.add(stopServerButton);
+        serversPanelSpringLayout.putConstraint(SpringLayout.SOUTH, serversPane, 0, SpringLayout.SOUTH, serversPanel);
-        stopServerButton.addActionListener(this);
+        serversPanelSpringLayout.putConstraint(SpringLayout.EAST, serversPane, 0, SpringLayout.EAST, serversPanel);
+        serversPanel.add(serversPane);
 
-        JLabel lblProfile = new JLabel("Profile");
+        serversPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
-        sl_panel.putConstraint(SpringLayout.NORTH, lblProfile, 6, SpringLayout.SOUTH, startServerButton);
-        sl_panel.putConstraint(SpringLayout.WEST, lblProfile, 10, SpringLayout.WEST, panelBasic);
-        panelBasic.add(lblProfile);
-
-        addProfileButton = new JButton("+");
-        sl_panel.putConstraint(SpringLayout.NORTH, addProfileButton, 6, SpringLayout.SOUTH, lblProfile);
-        sl_panel.putConstraint(SpringLayout.WEST, addProfileButton, 10, SpringLayout.WEST, panelBasic);
-        panelBasic.add(addProfileButton);
-        addProfileButton.addActionListener(this);
-
-        deleteProfileButton = new JButton("-");
-        sl_panel.putConstraint(SpringLayout.NORTH, deleteProfileButton, 0, SpringLayout.NORTH, addProfileButton);
-        sl_panel.putConstraint(SpringLayout.WEST, deleteProfileButton, 6, SpringLayout.EAST, addProfileButton);
-        panelBasic.add(deleteProfileButton);
-        deleteProfileButton.addActionListener(this);
-
-        profiles = new JComboBox<>();
-        sl_panel.putConstraint(SpringLayout.NORTH, profiles, 0, SpringLayout.NORTH, addProfileButton);
-        sl_panel.putConstraint(SpringLayout.WEST, profiles, 6, SpringLayout.EAST, deleteProfileButton);
-        sl_panel.putConstraint(SpringLayout.EAST, profiles, 124, SpringLayout.EAST, deleteProfileButton);
-        panelBasic.add(profiles);
-        profiles.addActionListener(this);
-
-        sl_panel.putConstraint(SpringLayout.NORTH, lblStatuslabel, 6, SpringLayout.SOUTH, addProfileButton);
-        sl_panel.putConstraint(SpringLayout.SOUTH, lblStatuslabel, -10, SpringLayout.SOUTH, panelBasic);
-        sl_panel.putConstraint(SpringLayout.WEST, lblStatuslabel, 10, SpringLayout.WEST, panelBasic);
-        sl_panel.putConstraint(SpringLayout.EAST, lblStatuslabel, -10, SpringLayout.EAST, panelBasic);
-        panelBasic.add(lblStatuslabel);
-
-        addServerButton = new JButton("Add server");
-        sl_panel.putConstraint(SpringLayout.NORTH, addServerButton, 0, SpringLayout.NORTH, startServerButton);
-        sl_panel.putConstraint(SpringLayout.WEST, addServerButton, 6, SpringLayout.EAST, stopServerButton);
-        panelBasic.add(addServerButton);
-        addServerButton.addActionListener(this);
-
-        backupButton = new JButton("Backup");
-        sl_panel.putConstraint(SpringLayout.NORTH, backupButton, 0, SpringLayout.NORTH, startServerButton);
-        sl_panel.putConstraint(SpringLayout.WEST, backupButton, 6, SpringLayout.EAST, addServerButton);
-        panelBasic.add(backupButton);
-        backupButton.addActionListener(this);
-
-        JPanel controlServers = new JPanel();
-        tabbedPane.addTab("Control servers", null, controlServers, null);
-
-        serverControlTab = new ServerControlTab(frame, controlServers);
-
-
-        JPanel panel_2 = new JPanel();
-        tabbedPane.addTab("Servers", null, panel_2, null);
-        SpringLayout sl_panel_2 = new SpringLayout();
-        panel_2.setLayout(sl_panel_2);
-
-        JTabbedPane tabbedPane_1 = new JTabbedPane(JTabbedPane.TOP);
-        sl_panel_2.putConstraint(SpringLayout.NORTH, tabbedPane_1, 0, SpringLayout.NORTH, panel_2);
-        sl_panel_2.putConstraint(SpringLayout.WEST, tabbedPane_1, 0, SpringLayout.WEST, panel_2);
-        sl_panel_2.putConstraint(SpringLayout.SOUTH, tabbedPane_1, 0, SpringLayout.SOUTH, panel_2);
-        sl_panel_2.putConstraint(SpringLayout.EAST, tabbedPane_1, 0, SpringLayout.EAST, panel_2);
-        panel_2.add(tabbedPane_1);
-
-        this.serversPane = tabbedPane_1;
-        tabbedPane_1.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
 
         frame.validate();
         frame.pack();
@@ -296,25 +296,10 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
         applicationTray.hideToTray();
     }
 
-    /**
-     * Gets the currently selected profile
-     *
-     * @return <p>The currently selected profile or null</p>
-     */
-    public String getSelectedProfile() {
-        Object selectedProfile = profiles.getSelectedItem();
-        if (selectedProfile != null) {
-            return selectedProfile.toString();
-        } else {
-            return null;
-        }
-
-    }
-
     @Override
     public void actionPerformed(ActionEvent e) {
         Object actionSource = e.getSource();
-        //Registers actions on the main tab
+        //Register actions on the main tab
         handleMainTabButtons(actionSource);
     }
 
@@ -325,33 +310,8 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
      * @param actionSource <p>The object being interacted with</p>
      */
     private void handleMainTabButtons(Object actionSource) {
-        if (actionSource == startServerButton) {
+        if (actionSource == addServerTabButton || actionSource == addServerPaneButton) {
-            controller.saveState();
-            Executors.newSingleThreadExecutor().execute(ServerHandler::startServers);
-        } else if (actionSource == stopServerButton) {
-            stopServers();
-        } else if (actionSource == addServerButton) {
             addServer();
-        } else if (actionSource == backupButton) {
-            CommonFunctions.backup(this);
-        } else if (actionSource == addProfileButton) {
-            controller.addProfile(JOptionPane.showInputDialog("Profile name: "));
-            updateProfiles();
-        } else if (actionSource == deleteProfileButton) {
-            deleteProfile();
-        } else if (actionSource == profiles) {
-            changeProfile();
-        }
-    }
-
-    /**
-     * Deletes the selected profile
-     */
-    private void deleteProfile() {
-        Object selected = profiles.getSelectedItem();
-        if (selected != null) {
-            controller.removeProfile(selected.toString());
-            updateProfiles();
         }
     }
 
@@ -376,42 +336,9 @@ public class ServerLauncherGUI extends MessageHandler implements ActionListener,
      */
     public void updateGUIElementsWhenServersStartOrStop(boolean running) {
         boolean stopped = !running; //Most gui is only enabled when the server is stopped rather than running.
-        profiles.setEnabled(stopped);
+        mainTabbedPane.setEnabledAt(1, !stopped);
-        addProfileButton.setEnabled(stopped);
+        mainTabbedPane.setEnabledAt(2, stopped);
-        deleteProfileButton.setEnabled(stopped);
+        controlPanelTab.updateGUIElementsWhenServersStartOrStop(running);
-        startServerButton.setEnabled(stopped);
-        addServerButton.setEnabled(stopped);
-        tabbedPane.setEnabledAt(2, stopped);
-        stopServerButton.setEnabled(running);
-    }
-
-    /**
-     * Saves the previous profile and loads data from the new profile
-     */
-    private void changeProfile() {
-        controller.saveState();
-        Object current = this.profiles.getSelectedItem();
-        if (current != null) {
-            controller.setCurrentProfile(current.toString());
-        }
-        this.updateWithSavedProfileData();
-        controller.getCurrentProfile().updateConsoles();
-    }
-
-    /**
-     * Stops all servers
-     */
-    public void stopServers() {
-        try {
-            setStatus("Servers are stopping...");
-            ServerHandler.stop();
-        } catch (IOException e1) {
-            showError("Could not stop server.");
-            e1.printStackTrace();
-        } catch (InterruptedException e) {
-            showError("Could not kill server.");
-            e.printStackTrace();
-        }
     }
 
     /**

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ServerLauncherMenu.java

@@ -237,7 +237,7 @@ public class ServerLauncherMenu implements ActionListener {
      * Asks the user for a delay if checked, and sets the value to the current profile
      */
     private void delay() {
-        String selectedProfile = serverLauncherGUI.getSelectedProfile();
+        String selectedProfile = serverLauncherGUI.getControlPanelTab().getSelectedProfile();
         if (selectedProfile != null) {
             Profile profile = controller.getProfileByName(selectedProfile);
             if (delayStartupCheckBoxMenuItem.isSelected()) {
@@ -260,7 +260,7 @@ public class ServerLauncherMenu implements ActionListener {
      * Saves the runInBackground setting to the current profile
      */
     private void background() {
-        String selectedProfile = serverLauncherGUI.getSelectedProfile();
+        String selectedProfile = serverLauncherGUI.getControlPanelTab().getSelectedProfile();
         if (selectedProfile != null) {
             Profile profile = controller.getProfileByName(selectedProfile);
             Objects.requireNonNull(profile).setRunInBackground(runInBackgroundCheckBoxMenuItem.isSelected());
@@ -273,7 +273,7 @@ public class ServerLauncherMenu implements ActionListener {
      * Saves the downloadJars setting to the current profile
      */
     private void downloadJars() {
-        String selectedProfile = serverLauncherGUI.getSelectedProfile();
+        String selectedProfile = serverLauncherGUI.getControlPanelTab().getSelectedProfile();
         if (selectedProfile != null) {
             controller.setDownloadAllJars(downloadJarsCheckBoxMenuItem.isSelected());
         } else {

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/ServerTab.java

@@ -23,11 +23,9 @@ public class ServerTab implements ActionListener {
     private final JComboBox<String> serverVersions;
     private final JComboBox<String> maxRam;
     private final JCheckBox enabledCheckbox;
-    private final JButton removeServerButton;
     private final JButton browseButton;
     private final JTextField directory;
     private final JPanel panel;
-    private final String name;
 
     /**
      * Initializes a new server tab with the given name
@@ -36,7 +34,6 @@ public class ServerTab implements ActionListener {
      * @throws ConfigurationException <p>If unable to create the new tab</p>
      */
     public ServerTab(String name) throws ConfigurationException {
-        this.name = name;
         panel = new JPanel();
         Main.getController().getGUI().getPane().addTab(name, null, panel, null);
         SpringLayout sl_panel_3 = new SpringLayout();
@@ -88,14 +85,6 @@ public class ServerTab implements ActionListener {
         panel.add(enabledCheckbox);
         enabledCheckbox.addActionListener(this);
 
-        removeServerButton = new JButton("Remove server");
-        sl_panel_3.putConstraint(SpringLayout.NORTH, removeServerButton, 0, SpringLayout.NORTH, serverVersions);
-        sl_panel_3.putConstraint(SpringLayout.SOUTH, removeServerButton, 0, SpringLayout.SOUTH, serverVersions);
-        sl_panel_3.putConstraint(SpringLayout.WEST, removeServerButton, 6, SpringLayout.EAST, serverVersions);
-        sl_panel_3.putConstraint(SpringLayout.EAST, removeServerButton, -10, SpringLayout.EAST, panel);
-        panel.add(removeServerButton);
-        removeServerButton.addActionListener(this);
-
         JLabel lblDirectory = new JLabel("Directory");
         sl_panel_3.putConstraint(SpringLayout.WEST, lblDirectory, 6, SpringLayout.EAST, enabledCheckbox);
         panel.add(lblDirectory);
@@ -112,7 +101,7 @@ public class ServerTab implements ActionListener {
 
         browseButton = new JButton("Browse");
         sl_panel_3.putConstraint(SpringLayout.EAST, directory, -6, SpringLayout.WEST, browseButton);
-        sl_panel_3.putConstraint(SpringLayout.NORTH, browseButton, 3, SpringLayout.SOUTH, removeServerButton);
+        sl_panel_3.putConstraint(SpringLayout.NORTH, browseButton, 3, SpringLayout.SOUTH, serverVersions);
         sl_panel_3.putConstraint(SpringLayout.EAST, browseButton, -10, SpringLayout.EAST, panel);
         sl_panel_3.putConstraint(SpringLayout.SOUTH, directory, 0, SpringLayout.SOUTH, browseButton);
         sl_panel_3.putConstraint(SpringLayout.NORTH, directory, 0, SpringLayout.NORTH, browseButton);
@@ -209,9 +198,7 @@ public class ServerTab implements ActionListener {
 
     @Override
     public void actionPerformed(ActionEvent e) {
-        if (e.getSource() == removeServerButton) {
+        if (e.getSource() == browseButton) {
-            remove();
-        } else if (e.getSource() == browseButton) {
             browse();
         } else if (e.getSource() == serverTypes) {
             try {
@@ -222,15 +209,6 @@ public class ServerTab implements ActionListener {
         }
     }
 
-    /**
-     * Removes the collection containing this ServerTab, and updates everything necessary
-     */
-    private void remove() {
-        Main.getController().getCurrentProfile().removeCollection(this.name);
-        Main.getController().getGUI().updateWithSavedProfileData();
-        Main.getController().getCurrentProfile().updateConsoles();
-    }
-
     /**
      * Asks the user for server location and updates the GUI if given a valid value
      */

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/TabDragListener.java

@@ -0,0 +1,61 @@
+package net.knarcraft.minecraftserverlauncher.userinterface;
+
+import javax.swing.event.MouseInputAdapter;
+import java.awt.*;
+import java.awt.event.MouseEvent;
+
+/**
+ * A listener for detecting the dragging of a tab to make it dock or undock
+ */
+public class TabDragListener extends MouseInputAdapter {
+
+    Point dragStartPoint;
+    Component draggedComponent;
+    String draggedTabTitle;
+    JDockableTabbedPane tabbedPaneToListenTo;
+
+    public TabDragListener(JDockableTabbedPane tabbedPaneToListenTo) {
+        this.tabbedPaneToListenTo = tabbedPaneToListenTo;
+    }
+
+    @Override
+    public void mousePressed(MouseEvent e) {
+        dragStartPoint = e.getPoint();
+
+        //Loop through tabbed panes to find the dragged one
+        for (int i = 0; i < tabbedPaneToListenTo.getTabCount(); i++) {
+            Rectangle bounds = tabbedPaneToListenTo.getBoundsAt(i);
+            if (bounds.contains(dragStartPoint)) {
+                draggedComponent = tabbedPaneToListenTo.getComponentAt(i);
+                draggedTabTitle = tabbedPaneToListenTo.getTitleAt(i);
+                break;
+            }
+        }
+    }
+
+    @Override
+    public void mouseDragged(MouseEvent e) {
+        Point dragEndPoint = e.getPoint();
+        if (draggedComponent != null) {
+            // check for a significant  drag
+            //TODO: Check if tab is dragged onto another JDockableTabbedPane with the same id
+            if (Math.abs(dragEndPoint.getY() - dragStartPoint.getY()) > 30) {
+
+                //TODO: Undock by creating a new JDockableTabbedPane with the same id
+                //TODO: If dragging onto another JDockableTabbedPane with the same id, combine
+                //TODO: Make the listener keep track of all its created windows
+                //TODO: If a child window is closed, dock its tab to the main window
+                //TODO: Keep track of the original window vs. the child window
+                //undock(draggedComponent, draggedTabTitle);
+                draggedComponent = null;
+            }
+        }
+    }
+
+    @Override
+    public void mouseReleased(MouseEvent arg0) {
+        draggedComponent = null;
+        draggedTabTitle = null;
+    }
+
+}

src/main/java/net/knarcraft/minecraftserverlauncher/userinterface/Tray.java

@@ -59,7 +59,7 @@ public class Tray {
             trayIcon = new TrayIcon(trayImage, "Minecraft Server Launcher", popup);
             trayIcon.setImageAutoSize(true);
             ActionListener exitListener = e -> {
-                serverLauncherGUI.stopServers();
+                serverLauncherGUI.getControlPanelTab().stopServers();
                 controller.saveState();
                 System.exit(0);
             };
@@ -92,7 +92,7 @@ public class Tray {
                             e1.printStackTrace();
                         }
                     } else {
-                        serverLauncherGUI.stopServers();
+                        serverLauncherGUI.getControlPanelTab().stopServers();
                         controller.saveState();
                         System.exit(0);
                     }
@@ -114,7 +114,7 @@ public class Tray {
                 @Override
                 public void windowClosing(WindowEvent e) {
                     controller.saveState();
-                    serverLauncherGUI.stopServers();
+                    serverLauncherGUI.getControlPanelTab().stopServers();
                     System.exit(0);
                 }
             });

src/main/java/net/knarcraft/minecraftserverlauncher/utility/BackupUtil.java

@@ -0,0 +1,264 @@
+package net.knarcraft.minecraftserverlauncher.utility;
+
+import net.knarcraft.minecraftserverlauncher.Main;
+import net.knarcraft.minecraftserverlauncher.profile.Collection;
+import net.knarcraft.minecraftserverlauncher.server.Server;
+import net.knarcraft.minecraftserverlauncher.userinterface.BackupGUI;
+import net.knarcraft.minecraftserverlauncher.userinterface.GUI;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Stream;
+
+/**
+ * A helper class for performing server backup
+ */
+public class BackupUtil {
+
+    private static boolean backupAborted;
+    private static boolean backupRunning = false;
+
+    /**
+     * Aborts the currently running backup
+     */
+    public static void abortBackup() {
+        backupAborted = true;
+    }
+
+    /**
+     * Recursively copies a folder to another location
+     *
+     * @param source         <p>The folder to copy</p>
+     * @param destination    <p>Target destination</p>
+     * @param backupFileSize <p>The total file size of the backup in progress</p>
+     * @param alreadyCopied  <p>The amount of bytes already copied</p>
+     * @throws IOException <p>If we can't start a file stream</p>
+     */
+    private static long backupFolder(File source, File destination, long backupFileSize,
+                                                  long alreadyCopied) throws IOException {
+        if (backupAborted) {
+            return 0L;
+        }
+        if (!source.isDirectory()) {
+            long copiedFileSize = copyFile(source, destination);
+            BackupGUI.updateProgress("Copying " + source + "\n to " + destination,
+                    (int) ((alreadyCopied + copiedFileSize) * 100 / backupFileSize));
+            return copiedFileSize;
+        } else {
+            if (!destination.exists() && !destination.mkdir()) {
+                return 0L;
+            }
+            String[] files = source.list();
+            long copiedFilesSize = 0;
+            if (files != null) {
+                for (String file : files) {
+                    File srcFile = new File(source, file);
+                    File destinationFile = new File(destination, file);
+                    copiedFilesSize += backupFolder(srcFile, destinationFile, backupFileSize,
+                            alreadyCopied + copiedFilesSize);
+                    BackupGUI.updateProgress("Copying " + source + "\n to " + destination,
+                            (int) ((alreadyCopied + copiedFilesSize) * 100 / backupFileSize));
+                }
+            }
+            return copiedFilesSize;
+        }
+    }
+
+    /**
+     * Copies a file from one location to another
+     *
+     * @param source      <p>The file to copy</p>
+     * @param destination <p>The location of the copied file</p>
+     * @throws IOException <p>If reading or writing fails</p>
+     */
+    private static long copyFile(File source, File destination) throws IOException {
+        InputStream in = new FileInputStream(source);
+        OutputStream out = new FileOutputStream(destination);
+        byte[] buffer = new byte[1024];
+        int length;
+        while ((length = in.read(buffer)) > 0) {
+            out.write(buffer, 0, length);
+        }
+        in.close();
+        out.close();
+        return Files.size(source.toPath());
+    }
+
+    /**
+     * Copies all server directories to a folder specified by the user
+     *
+     * @param gui <p>The GUI to use for informing the user</p>
+     */
+    public static void backup(GUI gui) {
+        backupAborted = false;
+        if (backupRunning) {
+            gui.setStatus("A backup is already running");
+            return;
+        } else {
+            backupRunning = true;
+        }
+
+        //Get the folder to save the backed up files in
+        File path = gui.askForDirectory("Backup folder");
+        if (path == null || !path.isDirectory()) {
+            backupRunning = false;
+            return;
+        }
+
+        gui.setStatus("Backup running...");
+        List<List<File>> serverFolders = getFoldersOfEnabledServers(path);
+
+        gui.setStatus("Calculating backup size...");
+        long backupFileSize = getFolderSize(gui, serverFolders);
+
+        long locationFreeSpace = path.getFreeSpace();
+        if (locationFreeSpace < (backupFileSize + 2048000000)) {
+            gui.setStatus("Not enough available space. " + (backupFileSize / 1000000) + "MB necessary, but only " +
+                    (locationFreeSpace / 1000000) + "MB available");
+            backupRunning = false;
+            backupAborted = true;
+            return;
+        }
+
+        gui.setStatus("Backing up " + (backupFileSize / 1000000) + "MB");
+
+        performBackup(gui, serverFolders, backupFileSize);
+    }
+
+    /**
+     * Performs the actual backup after checks have passed and necessary info is available
+     * @param gui <p>The GUI to use for informing the user</p>
+     * @param serverFolders <p>The folders of the servers to backup</p>
+     * @param backupFileSize <p>The total size of the folders to backup</p>
+     */
+    private static void performBackup(GUI gui, List<List<File>> serverFolders, long backupFileSize) {
+        new BackupGUI();
+        BackupGUI.updateProgress("Backup starting...", 0);
+        long alreadyCopied = 0;
+        for (List<File> serverFolder : serverFolders) {
+            if (backupAborted || !backupRunning) {
+                gui.setStatus("Backup aborted");
+                backupRunning = false;
+                return;
+            }
+            alreadyCopied = backupServerFiles(gui, serverFolder, backupFileSize, alreadyCopied);
+        }
+        backupRunning = false;
+        if (backupAborted) {
+            gui.setStatus("Backup aborted");
+        } else {
+            BackupGUI.destroy();
+            gui.setStatus("Backup finished");
+        }
+    }
+
+    /**
+     * Backs up the files for a single server
+     *
+     * @param gui <p>The GUI to use for informing the user</p>
+     * @param serverFolder <p>The server's input and output folders</p>
+     * @param backupFileSize <p>The total size of the files to backup</p>
+     * @param alreadyCopied <p>The amount of bytes already copied</p>
+     * @return <p>The new amount of bytes copied</p>
+     */
+    private static long backupServerFiles(GUI gui, List<File> serverFolder, long backupFileSize, long alreadyCopied) {
+        File srcFolder = serverFolder.get(0);
+        File destinationFolder = serverFolder.get(1);
+
+        //Create child folders
+        if (!destinationFolder.exists() && !destinationFolder.mkdirs()) {
+            backupRunning = false;
+            gui.logError("Unable to create necessary sub-folder in the backup folder");
+            throw new IllegalArgumentException("Unable to create necessary sub-folder in the backup folder");
+        }
+        //Backup
+        try {
+            alreadyCopied += backupFolder(srcFolder, destinationFolder, backupFileSize, alreadyCopied);
+        } catch (IOException e) {
+            gui.showError("Backup caused an error: " + e.getMessage());
+            gui.logError(Arrays.toString(e.getStackTrace()));
+            BackupGUI.destroy();
+            backupRunning = false;
+        }
+        return alreadyCopied;
+    }
+
+    /**
+     * Gets the size of a list of folders
+     *
+     * @param gui           <p>The GUI to write any errors to</p>
+     * @param serverFolders <p>The folder to find the size of</p>
+     * @return <p>The size of the given folders</p>
+     */
+    private static long getFolderSize(GUI gui, List<List<File>> serverFolders) {
+        long folderSize = 0;
+        for (List<File> serverFolder : serverFolders) {
+            File srcFolder = serverFolder.get(0);
+            try (Stream<Path> walk = Files.walk(srcFolder.toPath())) {
+                folderSize += walk.filter(Files::isRegularFile).mapToLong(BackupUtil::getFileSize).sum();
+            } catch (IOException e) {
+                gui.setStatus(String.format("IO errors %s", e));
+            }
+        }
+        return folderSize;
+    }
+
+    /**
+     * Gets the input and output folders for enabled servers
+     *
+     * <p>The input folders are the folders to copy, while the output folders are the folders to write the backup to.
+     * Each list element contains a list of exactly two File items. The first one is the input folder, and the second
+     * one is the output folder</p>
+     *
+     * @param path <p>The path of the backup folder, as given by the user</p>
+     * @return <p>The folders to copy from/to</p>
+     */
+    private static List<List<File>> getFoldersOfEnabledServers(File path) {
+        List<List<File>> serverFolders = new ArrayList<>();
+
+        //Get folders of servers to back up
+        List<Collection> collections = Main.getController().getCurrentProfile().getCollections();
+        for (Collection collection : collections) {
+            //Ignore disabled and invalid servers
+            if (collection.getServer().getPath().equals("") || !collection.getServer().isEnabled()) {
+                continue;
+            }
+            //Decide sub-folders
+            Server targetServer = collection.getServer();
+            String name = targetServer.getName();
+            File srcFolder = new File(targetServer.getPath());
+            File destinationFolder = new File(path, name);
+
+            List<File> serverFolder = new ArrayList<>();
+            serverFolder.add(srcFolder);
+            serverFolder.add(destinationFolder);
+            serverFolders.add(serverFolder);
+        }
+        return serverFolders;
+    }
+
+    /**
+     * Gets the size of a file given its path
+     *
+     * @param path <p>The path to a file</p>
+     * @return <p>The size of the file in bytes, or 0 if an exception is thrown</p>
+     */
+    private static long getFileSize(Path path) {
+        try {
+            return Files.size(path);
+        } catch (IOException exception) {
+            System.out.printf("Failed to get size of %s%n%s", path, exception);
+            return 0L;
+        }
+    }
+
+}

src/main/java/net/knarcraft/minecraftserverlauncher/utility/CommonFunctions.java

@@ -1,9 +1,6 @@
 package net.knarcraft.minecraftserverlauncher.utility;
 
 import net.knarcraft.minecraftserverlauncher.Main;
-import net.knarcraft.minecraftserverlauncher.profile.Collection;
-import net.knarcraft.minecraftserverlauncher.server.Server;
-import net.knarcraft.minecraftserverlauncher.userinterface.GUI;
 import net.knarcraft.minecraftserverlauncher.userinterface.WebBrowser;
 
 import java.io.BufferedReader;
@@ -16,7 +13,6 @@ import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
-import java.io.OutputStream;
 import java.io.OutputStreamWriter;
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -53,7 +49,7 @@ public final class CommonFunctions {
      * @param folder <p>The folder to create</p>
      * @throws FileNotFoundException <p>If unable to create the folder</p>
      */
-    protected static void createFolder(File folder) throws FileNotFoundException {
+    public static void createFolder(File folder) throws FileNotFoundException {
         if (!folder.exists()) {
             if (!folder.mkdirs()) {
                 throw new FileNotFoundException("Cannot create necessary directory.");
@@ -210,55 +206,6 @@ public final class CommonFunctions {
         }
     }
 
-    /**
-     * Recursively copies a folder to another location
-     *
-     * @param source      <p>The folder to copy</p>
-     * @param destination <p>Target destination</p>
-     * @throws IOException <p>If we can't start a file stream</p>
-     */
-    private static void copyFolder(GUI serverLauncherGui, File source, File destination) throws IOException {
-        if (!source.isDirectory()) {
-            copyFile(serverLauncherGui, source, destination);
-        } else {
-            serverLauncherGui.setStatus("Copying directory " + source);
-            if (!destination.exists() && !destination.mkdir()) {
-                return;
-            }
-            String[] files = source.list();
-            if (files != null) {
-                for (String file : files) {
-                    File srcFile = new File(source, file);
-                    File destinationFile = new File(destination, file);
-                    copyFolder(serverLauncherGui, srcFile, destinationFile);
-                }
-            }
-            serverLauncherGui.setStatus("Copied directory " + source);
-        }
-    }
-
-    /**
-     * Copies a file from one location to another
-     *
-     * @param serverLauncherGui <p>The serverLauncherGui to use for alerting the user</p>
-     * @param source            <p>The file to copy</p>
-     * @param destination       <p>The location of the copied file</p>
-     * @throws IOException <p>If reading or writing fails</p>
-     */
-    private static void copyFile(GUI serverLauncherGui, File source, File destination) throws IOException {
-        serverLauncherGui.setStatus("Copying file " + source + "...");
-        InputStream in = new FileInputStream(source);
-        OutputStream out = new FileOutputStream(destination);
-        byte[] buffer = new byte[1024];
-        int length;
-        while ((length = in.read(buffer)) > 0) {
-            out.write(buffer, 0, length);
-        }
-        in.close();
-        out.close();
-        serverLauncherGui.setStatus("Copied file " + source);
-    }
-
     /**
      * Opens an url in the user's default application.
      *
@@ -295,34 +242,7 @@ public final class CommonFunctions {
         return text.toString().trim();
     }
 
-    /**
+
-     * Copies all server directories to a folder specified by the user.
-     */
-    public static void backup(GUI gui) {
-        File path = gui.askForDirectory("Backup folder");
-        for (Collection collection : Main.getController().getCurrentProfile().getCollections()) {
-            //Ignore disabled and invalid servers
-            if (collection.getServer().getPath().equals("") || !collection.getServer().isEnabled()) {
-                continue;
-            }
-            //Decide sub-folders
-            Server targetServer = collection.getServer();
-            String name = targetServer.getName();
-            File srcFolder = new File(targetServer.getPath());
-            File destinationFolder = new File(path, name);
-            //Create child folders
-            if (!destinationFolder.exists() && !destinationFolder.mkdirs()) {
-                throw new IllegalArgumentException("Unable to create necessary sub-folder in the backup folder");
-            }
-            //Backup
-            try {
-                CommonFunctions.copyFolder(gui, srcFolder, destinationFolder);
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
-        gui.setStatus("Backup finished");
-    }
 
     /**
      * Validates that a name is not empty and does not contain invalid characters

src/main/resources/currentversion.csv

@@ -1,2 +1,2 @@
 beta
-1.3.5
+1.4.0