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softkeys.cpp Example File
widgets/softkeys/softkeys.cpp

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 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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 ** Contact: Nokia Corporation (qt-info@nokia.com)
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 ** This file is part of the examples of the Qt Toolkit.
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 ** No Commercial Usage
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 ** contained in the Technology Preview License Agreement accompanying
 ** this package.
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 ** GNU Lesser General Public License Usage
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 ** rights.  These rights are described in the Nokia Qt LGPL Exception
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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* clear = new QAction(tr("Clear"), this);
     clear->setSoftKeyRole(QAction::NegativeSoftKey);

     textEditor->addAction(clear);

     ok = new QAction(tr("Ok"), this);
     ok->setSoftKeyRole(QAction::PositiveSoftKey);
     connect(ok, SIGNAL(triggered()), this, SLOT(okPressed()));

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

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

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

     modeButton = new QPushButton(tr("Loop SK window type"), this);
     modeButton->setContextMenuPolicy(Qt::NoContextMenu);

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

     pushButton = new QPushButton(tr("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 QGridLayout;
     layout->addWidget(textEditor, 0, 0, 1, 2);
     layout->addWidget(infoLabel, 1, 0, 1, 2);
     layout->addWidget(toggleButton, 2, 0);
     layout->addWidget(pushButton, 2, 1);
     layout->addWidget(comboBox, 3, 0, 1, 2);
     layout->addWidget(modeButton, 4, 0, 1, 2);
     layout->addWidget(modeLabel, 5, 0, 1, 2);
     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()));
     connect(modeButton, SIGNAL(clicked()), this, SLOT(setMode()));
     pushButton->setFocus();
 }

 MainWindow::~MainWindow()
 {
 }

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

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

 void MainWindow::addSoftKeys()
 {
     addAction(ok);
     addAction(cancel);
 }

 void MainWindow::setCustomSoftKeys()
 {
     if (toggleButton->isChecked()) {
         infoLabel->setText(tr("Custom softkeys set"));
         addSoftKeys();
         }
     else {
         infoLabel->setText(tr("Custom softkeys removed"));
         removeAction(ok);
         removeAction(cancel);
     }
 }

 void MainWindow::setMode()
 {
     if(isMaximized()) {
         showFullScreen();
         modeLabel->setText(tr("Normal Fullscreen"));
     } else {
         Qt::WindowFlags flags = windowFlags();
         if(flags & Qt::WindowSoftkeysRespondHint) {
             flags |= Qt::WindowSoftkeysVisibleHint;
             flags &= ~Qt::WindowSoftkeysRespondHint;
             setWindowFlags(flags); // Hides visible window
             showFullScreen();
             modeLabel->setText(tr("Fullscreen with softkeys"));
         } else if(flags & Qt::WindowSoftkeysVisibleHint) {
             flags &= ~Qt::WindowSoftkeysVisibleHint;
             flags &= ~Qt::WindowSoftkeysRespondHint;
             setWindowFlags(flags); // Hides visible window
             showMaximized();
             modeLabel->setText(tr("Normal Maximized"));
         } else {
             flags &= ~Qt::WindowSoftkeysVisibleHint;
             flags |= Qt::WindowSoftkeysRespondHint;
             setWindowFlags(flags); // Hides visible window
             showFullScreen();
             modeLabel->setText(tr("Fullscreen with SK respond"));
         }
     }
 }

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

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

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

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