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** This file is part of the examples of the Qt Toolkit.
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#include "softkeys.h"

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
{
    central = new QWidget(this);
    central->setContextMenuPolicy(Qt::NoContextMenu); // explicitly forbid usage of context menu so actions item is not shown menu
    setCentralWidget(central);

    // Create text editor and set softkeys to it
    textEditor= new QTextEdit(tr("Navigate in UI to see context sensitive softkeys in action"), this);
    QAction* menu = new QAction(tr("Menu"), this);
    menu->setSoftKeyRole(QAction::MenuSoftKey);
    QAction* clear = new QAction(tr("Clear"), this);
    clear->setSoftKeyRole(QAction::CancelSoftKey);

    QList<QAction*> textEditorSoftKeys;
    textEditorSoftKeys.append(menu);
    textEditorSoftKeys.append(clear);
    textEditor->setSoftKeys(textEditorSoftKeys);

    infoLabel = new QLabel(tr(""), this);
    infoLabel->setContextMenuPolicy(Qt::NoContextMenu);

    toggleButton = new QPushButton(tr("Custom softkeys"), this);
    toggleButton->setContextMenuPolicy(Qt::NoContextMenu);
    toggleButton->setCheckable(true); 

    pushButton = new QPushButton(tr("Open File Dialog"), this);
    pushButton->setContextMenuPolicy(Qt::NoContextMenu);

    QComboBox* comboBox = new QComboBox(this);
    comboBox->setContextMenuPolicy(Qt::NoContextMenu);
    comboBox->insertItems(0, QStringList()
     << QApplication::translate("MainWindow", "Selection1", 0, QApplication::UnicodeUTF8)
     << QApplication::translate("MainWindow", "Selection2", 0, QApplication::UnicodeUTF8)
     << QApplication::translate("MainWindow", "Selection3", 0, QApplication::UnicodeUTF8)
    );

    layout = new QVBoxLayout;
    layout->addWidget(textEditor);
    layout->addWidget(infoLabel);
    layout->addWidget(toggleButton);
    layout->addWidget(pushButton);
    layout->addWidget(comboBox);
    central->setLayout(layout);

    fileMenu = menuBar()->addMenu(tr("&File"));
    exit = new QAction(tr("&Exit"), this);
    fileMenu->addAction(exit);

    connect(clear, SIGNAL(triggered()), this, SLOT(clearTextEditor()));
    connect(pushButton, SIGNAL(clicked()), this, SLOT(openDialog()));
    connect(exit, SIGNAL(triggered()), this, SLOT(exitApplication()));
    connect(toggleButton, SIGNAL(clicked()), this, SLOT(setCustomSoftKeys()));
    pushButton->setFocus();
}

MainWindow::~MainWindow()
{
}

void MainWindow::clearTextEditor()
{
    textEditor->setText(tr(""));
}

void MainWindow::openDialog()
{
    QFileDialog::getOpenFileName(this);
}

void MainWindow::addSoftKeys()
{
    ok = new QAction(tr("Ok"), this);
    ok->setSoftKeyRole(QAction::OkSoftKey);
    connect(ok, SIGNAL(triggered()), this, SLOT(okPressed()));

    cancel = new QAction(tr("Cancel"), this);
    cancel->setSoftKeyRole(QAction::CancelSoftKey);
    connect(cancel, SIGNAL(triggered()), this, SLOT(cancelPressed()));

    QList<QAction*> softkeys;
    softkeys.append(ok);
    softkeys.append(cancel);
    QWidget* focusWidget = QApplication::focusWidget();
    if (focusWidget)
        focusWidget->setSoftKeys(softkeys);
}

void MainWindow::setCustomSoftKeys()
{
    if (toggleButton->isChecked()) {
        infoLabel->setText(tr("Custom softkeys set"));
        addSoftKeys();
        }
    else {
        infoLabel->setText(tr("Custom softkeys removed"));
        QWidget* focusWidget = QApplication::focusWidget();
        if (focusWidget)
            focusWidget->setSoftKey(0);
    }
}

void MainWindow::exitApplication()
{
    qApp->exit();
}

void MainWindow::okPressed()
{
    infoLabel->setText(tr("OK pressed"));
}

void MainWindow::cancelPressed()
{
    infoLabel->setText(tr("Cancel pressed"));
}