FTB Borderless Window Source Code

/*
 * Copyright(C) Thepattybeast 2015
 * */
package net.minecraft.launchwrapper;

import java.awt.Canvas;
import java.awt.GraphicsEnvironment;
import java.awt.Rectangle;
import java.io.File;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLClassLoader;

import javax.swing.JFrame;
import javax.swing.JOptionPane;

public class Launch {

    public static void main(String[] args) throws InterruptedException, IOException{
        System.setProperty("org.lwjgl.opengl.Window.undecorated", "true");//Activate borderless window
        URL[] cp = ((URLClassLoader)Launch.class.getClassLoader()).getURLs();//Get the classpath(-cp) the program was launched with
        String jarName = getJar().getName();
        //scan for the classpath entry that is this jar file and replace it with the classpatth entry of the actual realauncher
        for(int i = 0; i < cp.length; i++){
            System.out.println(cp[i].getPath() + " <-- " + jarName);
            if(cp[i].getPath().contains(jarName))
                System.out.println("OK");
                try {
                    cp[i] = new URL("file:///"+cp[i].getPath().replace(jarName, "launchwrapper.jar"));
                } catch (MalformedURLException e) {
                    e.printStackTrace();
                }
        }

        final URLClassLoader loader = new URLClassLoader(cp, null);
        try{
            //the only way to get centered borderless is to remove the borders completely by attaching the LWJGL Display to a canvas
            JFrame MCWindow = new JFrame("MC Window");
            //Get the size of the default display
            //the LWJGL Display will always be at 0, 0 regardless JFrame position
            Rectangle bounds = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration().getBounds();
            MCWindow.setSize(bounds.width, bounds.height);
            MCWindow.setUndecorated(true);
            MCWindow.setLocationRelativeTo(null);
            MCWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            Canvas parent = new Canvas();
            MCWindow.add(parent);
            MCWindow.setVisible(true);
            Class<?> c = loader.loadClass("org.lwjgl.opengl.Display");//get an instance of the LWJGL display class
            c.getMethod("setParent", Canvas.class).invoke(null, parent);//LWJGL Display parent to our canvas
        } catch (Throwable e) {
            e.printStackTrace();
            JOptionPane.showMessageDialog(null, e.toString());
        }

        try {
            //load the main class
            loader.loadClass("net.minecraft.launchwrapper.Launch").getMethod("main", String[].class).invoke(null, (Object)args);
        } catch (Exception e) {
            e.printStackTrace();
        }
        loader.close();
    }

    /**@returns the path to the application jar file*/
    public static File getJar(){
        try {
            return new File(Launch.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath());
        } catch (URISyntaxException e) {
            e.printStackTrace();
        }
        System.err.println("Error locating jar file returning runtime directory.");
        return new File("");
    }

}