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qt4-x11/demos/mobile/qtbubblelevel/main.cpp
2025-08-24 20:55:26 +08:00

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/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the QtDeclarative module 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 The Qt Company Ltd 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 <QtDeclarative>
#include <QtGui>
#include <QAccelerometer>
#include "accelerometerfilter.h"
#include "settings.h"
#include "taskswitcher.h"
// Lock orientation in Symbian
#ifdef Q_OS_SYMBIAN
#include <eikenv.h>
#include <eikappui.h>
#include <aknenv.h>
#include <aknappui.h>
#endif
QTM_USE_NAMESPACE
int main(int argc, char *argv[])
{
QApplication app(argc, argv);
#ifdef Q_OS_SYMBIAN
// Lock orientation to landscape in Symbian
CAknAppUi* appUi = dynamic_cast<CAknAppUi*> (CEikonEnv::Static()->AppUi());
TRAP_IGNORE(
if (appUi)
appUi->SetOrientationL(CAknAppUi::EAppUiOrientationLandscape);
)
#endif
//! [0]
QDeclarativeView view;
view.setSource(QUrl("qrc:/qml/BubbleLevel.qml"));
view.setResizeMode(QDeclarativeView::SizeRootObjectToView);
//! [0]
// ![1]
Settings settings;
QAccelerometer sensor;
AccelerometerFilter filter;
sensor.addFilter(&filter);
//! [1]
//! [2]
QObject *rootObject = dynamic_cast<QObject*>(view.rootObject());
// Associate Qt / QML signals and slots
QObject::connect(rootObject, SIGNAL(saveCorrectionAngle(const QVariant&)),
&settings, SLOT(saveCorrectionAngle(const QVariant&)));
QObject::connect(&filter, SIGNAL(rotationChanged(const QVariant&)),
rootObject, SLOT(handleRotation(const QVariant&)));
QObject::connect(&settings, SIGNAL(correctionAngle(const QVariant&)),
rootObject, SLOT(setCorrectionAngle(const QVariant&)));
QObject::connect((QObject*)view.engine(), SIGNAL(quit()),
&app, SLOT(quit()));
//! [2]
//! [3]
#ifdef Q_WS_MAEMO_5
TaskSwitcher taskSwitcher;
QObject::connect(rootObject, SIGNAL(minimizeApplication()),
&taskSwitcher, SLOT(minimizeApplication()));
// Show the task switcher button
rootObject->setProperty("taskSwitcherVisible", true);
#endif
//! [3]
//! [4]
// Read correction factor from permanent storage and emit it to QML side
settings.loadAndEmitCorrectionAngle();
// Begin measuring of the accelerometer sensor
sensor.start();
//! [4]
//! [5]
#if defined(Q_WS_MAEMO_5) || defined(Q_OS_SYMBIAN) || defined(Q_WS_SIMULATOR)
view.setGeometry(QApplication::desktop()->screenGeometry());
view.showFullScreen();
#else
view.setGeometry((QRect(100, 100, 800, 480)));
view.show();
#endif
//! [5]
return app.exec();
}