qt5base-lts/examples/widgets/softkeys/softkeys.cpp

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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this software without specific prior written
** permission.
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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"));
}