==main.cpp==

#include <QApplication>
#include <QShortcut>
#include "variables.h"
#include "globalPointers.h"
//

int main(int argc, char ** argv)
{
	QApplication app( argc, argv );
	gApp=&app;
	QMessageBox about;
	about.setWindowTitle("About");
	about.setText("MLC Editor 0.1");
	MainWindowImpl win;
	gWin=&win;
	win.newFile();
	win.adjust();
	win.show(); 
	win.tabWidget->setContextMenuPolicy (Qt::CustomContextMenu);

	QShortcut(Qt::CTRL + Qt::Key_W,gWin, SLOT( tabContextMenu() ) );
	
	app.connect( &app, SIGNAL( lastWindowClosed() ), &app, SLOT( quit() ) );
	app.connect( win.tabWidget, SIGNAL( currentChanged(int) ), &win, SLOT( adjust() ) );
	app.connect( win.actionAbout, SIGNAL( triggered() ), &about, SLOT( exec() ) );
	app.connect( win.actionNew, SIGNAL( triggered() ), &win, SLOT( newFile() ) );
	app.connect( win.actionOpen, SIGNAL( triggered() ), &win, SLOT( openFile() ) );
	app.connect( win.actionSave, SIGNAL( triggered() ), &win, SLOT( saveFile() ) );
	app.connect( win.actionSave_As, SIGNAL( triggered() ), &win, SLOT( saveAsFile() ) );
	app.connect( win.actionExit, SIGNAL( triggered() ), &win, SLOT( exit() ) );
	
	app.connect( win.tabWidget, SIGNAL( customContextMenuRequested ( QPoint ) ), &win, SLOT( tabContextMenu() ) );

	return app.exec();
}

==mainwindowimpl.h==

#ifndef MAINWINDOWIMPL_H
#define MAINWINDOWIMPL_H
//
#include <QMainWindow>
#include "ui_mainwindow.h"
//
class MainWindowImpl : public QMainWindow, public Ui::MainWindow
{
Q_OBJECT
public:
	MainWindowImpl( QWidget * parent = 0, Qt::WFlags f = 0 );
public slots:
	void newFile();
	void openFile();
	void saveFile();
	void saveAsFile();
	void exit();
	
	void changed(); // When contents of current text box are changed
	void adjust(); // Adjust the slots connected to Undo, Redo, etc. actions
	void tabContextMenu(); // Executes context menu "Close Tab" etc.
	void closeTab();
};
#endif

==mainwindowimpl.cpp==
// THIS IT NOT THE ENTIRE FILE, ONLY THE MOST RELEVANT PART

void MainWindowImpl::tabContextMenu(){
	// Put this in main function or something...a new menu doesn't needed to be created and destroyed each time
	QMenu menu;
	menu.addAction("Close Tab",gWin, SLOT( closeTab() ) );
	menu.exec();
}

void MainWindowImpl::closeTab(){
	if(tabWidget->count())
		tabWidget->removeTab(tabWidget->currentIndex());
}

==globalPointers.h==

#ifndef __GLOBALPOINTERS_H__
#define __GLOBALPOINTERS_H__

#include <QApplication>
#include "mainwindowimpl.h"
#include "ui_mainwindow.h"

extern QApplication* gApp;
extern MainWindowImpl* gWin;

#endif // __GLOBALPOINTERS_H__

==globalpointers.cpp=
#include "globalPointers.h"

QApplication* gApp;
MainWindowImpl* gWin;