QMainWindow(parent)

{

interpreter = new BefungeInterpreter(this);

setCentralWidget(new QFrame(this));

QHBoxLayout *layout_central = new QHBoxLayout();

QVBoxLayout *layout_main = new QVBoxLayout();

QVBoxLayout *layout_buttons = new QVBoxLayout();

centralWidget()->setLayout(layout_central);

QGridLayout *layout_befunge_editor = new QGridLayout();

QHBoxLayout *layout_input_output = new QHBoxLayout();

QHBoxLayout *layout_aux_widgets = new QHBoxLayout();

QVBoxLayout *layout_input = new QVBoxLayout();

QVBoxLayout *layout_output = new QVBoxLayout();

QVBoxLayout *layout_stack = new QVBoxLayout();

QVBoxLayout *layout_help = new QVBoxLayout();

befunge_editor = new QTextEdit(this);

befunge_editor->setFont(QFont("Verdana", 12));

befunge_editor->ensureCursorVisible();

befunge_editor->setLineWrapMode(QTextEdit::NoWrap);

befunge_editor->setMinimumHeight(400);

layout_befunge_editor->addWidget(befunge_editor);

befunge_input = new QTextEdit(this);

befunge_input->setFont(QFont("Verdana", 12));

befunge_input->ensureCursorVisible();

befunge_input->setLineWrapMode(QTextEdit::NoWrap);

layout_input->addWidget(new QLabel("Input", this));

layout_input->addWidget(befunge_input);

befunge_output = new QTextEdit(this);

befunge_output->setFont(QFont("Verdana", 12));

befunge_output->ensureCursorVisible();

befunge_output->setLineWrapMode(QTextEdit::NoWrap);

befunge_output->setReadOnly(true);

layout_output->addWidget(new QLabel("Output", this));

layout_output->addWidget(befunge_output);

stack_view = new QTableView(this);

layout_stack->addWidget(new QLabel("Stack", this));

layout_stack->addWidget(stack_view);

befunge_help = new QTextEdit(this);

befunge_help->setFont(QFont("Verdana", 12));

befunge_help->setMinimumWidth(550);

befunge_help->setHtml(QString("<table border=\"1\"> <tr> <th>COMMAND</th> <th>INITIAL STACK (bot->top)</th> <th>RESULT STACK</th> </tr>") %

QString("<tr> <td>+ (add)</td> <td>'value1' 'value2'</td> <td>'value1 + value2'</td> </tr>") %

QString("<tr> <td>- (subtract)</td> <td>'value1' 'value2'</td> <td>'value1 - value2'</td> </tr>") %

QString("<tr> <td>* (multiply)</td> <td>'value1' 'value2'</td> <td>'value1 * value2'</td> </tr>") %

QString("<tr> <td>/ (divide)</td> <td>'value1' 'value2'</td> <td>'value1 / value2' (nb. integer)</td> </tr>") %

QString("<tr> <td>% (modulo)</td> <td>'value1' 'value2'</td> <td>'value1 mod value2'</td> </tr>") %

QString("<tr> <td>! (not)</td> <td>'value'</td> <td>'0' if value non-zero, '1' otherwise</td> </tr>") %

QString("<tr> <td>` (greater)</td> <td>'value1' 'value2'</td> <td>'1' if value1 > value2, '0' otherwise</td> </tr>") %

QString("<tr> <td>&gt; (right)</td> <td> </td> <td>PC -> right</td> </tr>") %

QString("<tr> <td>&lt; (left)</td> <td> </td> <td>PC -> left</td> </tr>") %

QString("<tr> <td>^ (up)</td> <td> </td> <td>PC -> up</td> </tr>") %

QString("<tr> <td>v (down)</td> <td> </td> <td>PC -> down</td> </tr>") %

QString("<tr> <td>? (random)</td> <td> </td> <td>PC -> random direction</td> </tr>") %

QString("<tr> <td>_ (horizontal if)</td> <td>'boolean value'</td> <td>PC -> left if 'value', else PC -> right</td> </tr>") %

QString("<tr> <td>| (vertical if)</td> <td>'boolean value'</td> <td>PC -> up if 'value', else PC -> down</td> </tr>") %

QString("<tr> <td>\" (stringmode)</td> <td> </td> <td>toggles 'stringmode'</td> </tr>") %

QString("<tr> <td>: (dup)</td> <td>'value'</td> <td>'value' 'value'</td> </tr>") %

QString("<tr> <td>\\ (swap)</td> <td>'value1' 'value2'</td> <td>'value2' 'value1'</td> </tr>") %

QString("<tr> <td>$ (pop)</td> <td>'value'</td> <td>just pops 'value'</td> </tr>") %

QString("<tr> <td>. (pop)</td> <td>'value'</td> <td>pops 'value' and outputs as integer</td> </tr>") %

QString("<tr> <td>, (pop)</td> <td>'value'</td> <td>pops 'value' and outputs as ASCII</td> </tr>") %

QString("<tr> <td># (bridge)</td> <td> </td> <td>PC jumps over next cell</td> </tr>") %

QString("<tr> <td>g (get)</td> <td>'x' 'y'</td> <td>'value at (x, y)'</td> </tr>") %

QString("<tr> <td>p (put)</td> <td>'value' 'x' 'y'</td> <td>puts 'value' at (x, y)</td> </tr>") %

QString("<tr> <td>& (input value)</td> <td> </td> <td>value user entered</td> </tr>") %

QString("<tr> <td>~ (input char)</td> <td> </td> <td>character user entered</td> </tr>") %

QString("<tr> <td>@ (end)</td> <td> </td> <td>ends program</td> </tr> </table>"));

befunge_help->setReadOnly(true);

layout_help->addWidget(new QLabel("Befunge command summary", this));

layout_help->addWidget(befunge_help);

btn_run = new QPushButton("Run", this);

btn_step = new QPushButton("Step", this);

btn_stop = new QPushButton("Stop", this);

btn_exit = new QPushButton("Exit", this);

layout_buttons->addWidget(btn_run);

layout_buttons->addSpacing(5);

layout_buttons->addWidget(btn_step);

layout_buttons->addSpacing(5);

layout_buttons->addWidget(btn_stop);

layout_buttons->addStretch();

layout_buttons->addWidget(btn_exit);

layout_aux_widgets->addItem(layout_stack);

layout_aux_widgets->addItem(layout_help);

layout_input_output->addItem(layout_input);

layout_input_output->addItem(layout_output);

layout_main->addItem(layout_befunge_editor);

layout_main->addItem(layout_input_output);

layout_main->addItem(layout_aux_widgets);

layout_central->addItem(layout_main);

layout_central->addItem(layout_buttons);

connect(btn_exit, SIGNAL(clicked()), this, SLOT(close()));

connect(btn_run, SIGNAL(clicked()), interpreter, SLOT(Run()));

connect(btn_step, SIGNAL(clicked()), interpreter, SLOT(Step()));