AudioVolumeKeyEventOnSymbian

Register in C++

qmlRegisterType<MediakeyCaptureItem>("Mediakey", 1, 0, "MediakeyCapture");

Example #include "qmlapplicationviewer.h"

1. include <QtCore/QCoreApplication>
2. include <QtCore/QDir>
3. include <QtCore/QFileInfo>
4. include <QtDeclarative/QDeclarativeComponent>
5. include <QtDeclarative/QDeclarativeEngine>
6. include <QtDeclarative/QDeclarativeContext>

1. if defined(QMLJSDEBUGGER)
2. include <qt_private/qdeclarativedebughelper_p.h>
3. endif

1. if defined(QMLJSDEBUGGER) && !defined(NO_JSDEBUGGER)
2. include <jsdebuggeragent.h>
3. endif
4. if defined(QMLJSDEBUGGER) && !defined(NO_QMLOBSERVER)
5. include <qdeclarativeviewobserver.h>
6. endif

1. if defined(QMLJSDEBUGGER)

// Enable debugging before any QDeclarativeEngine is created struct QmlJsDebuggingEnabler {

QmlJsDebuggingEnabler()
{
QDeclarativeDebugHelper::enableDebugging();
}

};

// Execute code in constructor before first QDeclarativeEngine is instantiated static QmlJsDebuggingEnabler enableDebuggingHelper;

1. endif // QMLJSDEBUGGER

class QmlApplicationViewerPrivate {

QString mainQmlFile;
friend class QmlApplicationViewer;
static QString adjustPath(const QString &path);

};

QString QmlApplicationViewerPrivate::adjustPath(const QString &path) {

1. ifdef Q_OS_UNIX
2. ifdef Q_OS_MAC

if (!QDir::isAbsolutePath(path))
return QCoreApplication::applicationDirPath()
+ QLatin1String("/../Resources/") + path;

1. else

const QString pathInInstallDir = QCoreApplication::applicationDirPath()
+ QLatin1String("/../") + path;
if (pathInInstallDir.contains(QLatin1String("opt"))
&& pathInInstallDir.contains(QLatin1String("bin"))
&& QFileInfo(pathInInstallDir).exists()) {
return pathInInstallDir;
}

1. endif
2. endif

return path;

}

QmlApplicationViewer::QmlApplicationViewer(QWidget *parent) :

QDeclarativeView(parent),
m_d(new QmlApplicationViewerPrivate)

{

connect(engine(), SIGNAL (quit()), SLOT (close()));
setResizeMode(QDeclarativeView::SizeRootObjectToView);

1. if defined(QMLJSDEBUGGER) && !defined(NO_JSDEBUGGER)

new QmlJSDebugger::JSDebuggerAgent(engine());

1. endif
2. if defined(QMLJSDEBUGGER) && !defined(NO_QMLOBSERVER)

new QmlJSDebugger::QDeclarativeViewObserver(this, this);

1. endif

}

QmlApplicationViewer::~QmlApplicationViewer() {

delete m_d;

}

void QmlApplicationViewer::setMainQmlFile(const QString &file) {

m_d->mainQmlFile = QmlApplicationViewerPrivate::adjustPath(file);

setSource(QUrl::fromLocalFile(m_d->mainQmlFile));

}

void QmlApplicationViewer::addImportPath(const QString &path) {

engine()->addImportPath(QmlApplicationViewerPrivate::adjustPath(path)); }

void QmlApplicationViewer::setOrientation(ScreenOrientation orientation) {

1. if defined(Q_OS_SYMBIAN)

// If the version of Qt on the device is < 4.7.2, that attribute won't work
if (orientation != ScreenOrientationAuto) {
const QStringList v = QString::fromAscii(qVersion()).split(QLatin1Char('.'));
if (v.count() == 3 && (v.at(0).toInt() << 16 | v.at(1).toInt() << 8 | v.at(2).toInt()) < 0x040702) {
qWarning("Screen orientation locking only supported with Qt 4.7.2 and above");
return;
}
}

1. endif // Q_OS_SYMBIAN

Qt::WidgetAttribute attribute;

switch (orientation) {

1. if QT_VERSION < 0x040702

// Qt < 4.7.2 does not yet have the Qt::WA_*Orientation attributes
case ScreenOrientationLockPortrait:
attribute = static_cast<Qt::WidgetAttribute>(128);
break;
case ScreenOrientationLockLandscape:
attribute = static_cast<Qt::WidgetAttribute>(129);
break;
default:
case ScreenOrientationAuto:
attribute = static_cast<Qt::WidgetAttribute>(130);
break;

1. else // QT_VERSION < 0x040702

case ScreenOrientationLockPortrait:
attribute = Qt::WA_LockPortraitOrientation;
break;
case ScreenOrientationLockLandscape:
attribute = Qt::WA_LockLandscapeOrientation;
break;
default:
case ScreenOrientationAuto:
attribute = Qt::WA_AutoOrientation;
break;

1. endif // QT_VERSION < 0x040702

};
setAttribute(attribute, true);

}

void QmlApplicationViewer::showExpanded() {

1. ifdef Q_OS_SYMBIAN

showFullScreen();

1. elif defined(Q_WS_MAEMO_5)

showMaximized();

1. else

show();

1. endif