C++/Qt GUI for Veil-Evasion

I started writing a GUI for veil-evasion. I got pretty far without knowing much Qt. I had done some GUIs work with QML formatting. But not actual Qt programming. I got hung up trying to pass the Qstring to system(). I Googled for a bit and asked around a couple of forums. I think I will have it finished pretty soon. Here's what I have so far.

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtCore>
#include <QtGui>
#include <string>
#include <QString>
#include <QComboBox>



int i;
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    QStringList payloads;
    payloads << "Select Payload" << "auxiliary/coldwar_wrapper" << "auxiliary/pyinstaller_wrapper" << "c/meterpreter/rev_http" << "c/meterpreter/rev_http_service" << "c/meterpreter/rev_tcp" << "c/meterpreter/rev_tcp_service" << "c/shellcode_inject/flatc" << "cs/meterpreter/rev_http" << "cs/meterpreter/rev_https" << "cs/meterpreter/rev_tcp" << "cs/shellcode_inject/base64_substitution" << "cs/shellcode_inject/virtual" << "go/meterpreter/rev_http" << "go/meterpreter/rev_https" << "go/meterpreter/rev_tcp" << "go/shellcode_inject/virtual" << "native/backdoor_factory" << "native/hyperion" << "native/pe_scrambler" << "powershell/meterpreter/rev_http" << "powershell/meterpreter/rev_https" << "powershell/meterpreter/rev_tcp" << "powershell/shellcode_inject/download_virtual" << "powershell/shellcode_inject/psexec_virtual" << "powershell/shellcode_inject/virtual" << "python/meterpreter/bind_tcp" << "python/meterpreter/rev_http" << "python/meterpreter/rev_http_contained" << "python/meterpreter/rev_https" << "python/meterpreter/rev_https_contained" << "python/meterpreter/rev_tcp" << "python/shellcode_inject/aes_encrypt" << "python/shellcode_inject/aes_encrypt_HTTPKEY_Request" << "python/shellcode_inject/arc_encrypt" << "python/shellcode_inject/base64_substitution" << "python/shellcode_inject/des_encrypt" << "python/shellcode_inject/download_inject" << "python/shellcode_inject/flat" << "python/shellcode_inject/letter_substitution" << "python/shellcode_inject/pidinject" << "ruby/meterpreter/rev_http" << "ruby/meterpreter/rev_http_contained" << "ruby/meterpreter/rev_https" << "ruby/meterpreter/rev_https_contained" << "ruby/meterpreter/rev_tcp" << "ruby/shellcode_inject/flat";

    QStringListModel *model = new QStringListModel();
    model->setStringList(payloads);

    ui->comboBox->setModel(model);

    QStringList encoders;
    encoders << "Select Encoder" << "cmd/echo" << "cmd/generic_sh" << "cmd/ifs" << "cmd/perl" << "cmd/powershell_base64" << "cmd/printf_php_mq" << "generic/eicar" << "mipsbe/byte_xori" << "mipsbe/longxor" << "mipsle/byte_xori" << "mipsle/longxor" << "php/base64" << "ppc/longxor" << "ppc/longxor_tag" << "sparc/longxor_tag" << "x64/xor" << "x86/add_sub" << "x86/alpha_mixed" << "x86/alpha_upper" << "x86/avoid_underscore_tolower" << "x86/avoid_utf8_tolower" << "x86/bloxor" << "x86/call4_dword_xor" << "x86/context_cpuid" << "x86/context_stat" << "x86/context_time" << "x86/countdown" << "x86/fnstenv_mov" << "x86/jmp_call_additive" << "x86/nonalpha" << "x86/nonupper" << "x86/opt_sub" << "x86/shikata_ga_nai" << "x86/single_static_bit" << "x86/unicode_mixed" << "x86/unicode_upper";

    QStringListModel *model1 = new QStringListModel();
    model1->setStringList(encoders);

    ui->comboBox1->setModel(model1);

    QStringList platforms;
    platforms << "Select Platform" << "openbsd" << "javascript" << "bsdi" << "python" << "netbsd" << "nodejs" << "freebsd" << "firefox" << "aix" << "mainframe" << "hpux" << "irix" << "unix" << "php" << "bsd" << "netware" << "osx" << "android" << "java" << "ruby" << "linux" << "cisco" << "solaris" << "windows";

    QStringListModel *model2 = new QStringListModel();
    model2->setStringList(platforms);

    ui->comboBox2->setModel(model2);

    QStringList arch;
    arch << "Select Architecture";


    QStringList format;
    format << "Select Format" << "asp" << "aspx" << "aspx-exe" << "dll" << "elf" << "elf-so" << "exe" << "exe-only" << "exe-service" << "exe-small" << "hta-psh" << "loop-vbs" << "macho" << "msi" << "msi-nouac" << "osx-app" << "psh" << "psh-net" << "psh-reflection" << "psh-cmd" << "vba" << "vba-exe" << "vba-psh" << "vbs" << "war" << "bash" << "c" << "csharp" << "dw" << "dword" << "pl" << "powershell" << "ps1" << "py" << "python" << "raw" << "rb" << "ruby" << "sh" << "vbapplication" << "vbscript";

    QStringListModel *model4 = new QStringListModel();
    model4->setStringList(format);

    ui->comboBox4->setModel(model4);

    QString var1 = "gnome-terminal -e \"msfvenom --payload \"";

    QString var2;
    var1 = ui->comboBox->currentIndex();
    QString var3;
    var1 = ui->comboBox1->currentIndex();
    QString var4;
    var1 = ui->comboBox2->currentIndex();

    QString command = var1 + " " + var2 + var3 + var4;

}



MainWindow::~MainWindow()
{
    delete ui;
}

void MainWindow::on_pushButton_clicked()
{

    system("");

}

Screenshot of current GUI. Still needs a lot of work. I'm in the habbit of blogging things and saving my code online in just in case.