qt-creator/share/qtcreator/templates/qmlapp/qmlapplicationviewer/qmlapplicationviewer.cpp

/*
  This file was generated by the Qt Quick Application wizard of Qt Creator.
  QmlApplicationViewer is a convenience class containing mobile device specific
  code such as screen orientation handling. Also QML paths and debugging are
  handled here.
  It is recommended not to modify this file, since newer versions of Qt Creator
  may offer an updated version of it.
*/

#include "qmlapplicationviewer.h"

#include <QtCore/QCoreApplication>
#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtDeclarative/QDeclarativeComponent>
#include <QtDeclarative/QDeclarativeEngine>
#include <QtDeclarative/QDeclarativeContext>

#if defined(QMLJSDEBUGGER)
#include <qt_private/qdeclarativedebughelper_p.h>
#endif

#if defined(QMLJSDEBUGGER) && !defined(NO_JSDEBUGGER)
#include <jsdebuggeragent.h>
#endif
#if defined(QMLJSDEBUGGER) && !defined(NO_QMLOBSERVER)
#include <qdeclarativeviewobserver.h>
#endif

#if defined(Q_OS_SYMBIAN) && defined(ORIENTATIONLOCK)
#include <eikenv.h>
#include <eikappui.h>
#include <aknenv.h>
#include <aknappui.h>
#endif // Q_OS_SYMBIAN && ORIENTATIONLOCK

#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;

#endif // QMLJSDEBUGGER

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

QString QmlApplicationViewerPrivate::adjustPath(const QString &path)
{
#if defined(Q_OS_UNIX)
#if defined(Q_OS_MAC)
    if (!QDir::isAbsolutePath(path))
        return QCoreApplication::applicationDirPath()
                + QLatin1String("/../Resources/") + path;
#else
    const QString pathInShareDir = QCoreApplication::applicationDirPath()
        + QLatin1String("/../share/")
        + QFileInfo(QCoreApplication::applicationFilePath()).fileName()
        + QLatin1Char('/') + path;
    if (QFileInfo(pathInShareDir).exists())
        return pathInShareDir;
#endif
#endif
    return path;
}

QmlApplicationViewer::QmlApplicationViewer(QWidget *parent) :
    QDeclarativeView(parent),
    m_d(new QmlApplicationViewerPrivate)
{
    connect(engine(), SIGNAL(quit()), SLOT(close()));
    setResizeMode(QDeclarativeView::SizeRootObjectToView);
#if defined(QMLJSDEBUGGER) && !defined(NO_JSDEBUGGER)
    new QmlJSDebugger::JSDebuggerAgent(engine());
#endif
#if defined(QMLJSDEBUGGER) && !defined(NO_QMLOBSERVER)
    new QmlJSDebugger::QDeclarativeViewObserver(this, parent);
#endif
}

QmlApplicationViewer::~QmlApplicationViewer()
{
    delete m_d;
}

QmlApplicationViewer *QmlApplicationViewer::create()
{
#if defined(QMLJSDEBUGGER)
    QDeclarativeDebugHelper::enableDebugging();
#endif
    QmlApplicationViewer *viewer = new QmlApplicationViewer();
    viewer->setAttribute(Qt::WA_DeleteOnClose);
    return viewer;
}

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)
{
#if defined(Q_OS_SYMBIAN)
    if (orientation != ScreenOrientationAuto) {
#if defined(ORIENTATIONLOCK)
        const CAknAppUiBase::TAppUiOrientation uiOrientation =
                (orientation == ScreenOrientationLockPortrait) ? CAknAppUi::EAppUiOrientationPortrait
                    : CAknAppUi::EAppUiOrientationLandscape;
        CAknAppUi* appUi = dynamic_cast<CAknAppUi*> (CEikonEnv::Static()->AppUi());
        TRAPD(error,
            if (appUi)
                appUi->SetOrientationL(uiOrientation);
        );
        Q_UNUSED(error)
#else // ORIENTATIONLOCK
        qWarning("'ORIENTATIONLOCK' needs to be defined on Symbian when locking the orientation.");
#endif // ORIENTATIONLOCK
    }
#elif defined(Q_WS_MAEMO_5)
    Qt::WidgetAttribute attribute;
    switch (orientation) {
    case ScreenOrientationLockPortrait:
        attribute = Qt::WA_Maemo5PortraitOrientation;
        break;
    case ScreenOrientationLockLandscape:
        attribute = Qt::WA_Maemo5LandscapeOrientation;
        break;
    case ScreenOrientationAuto:
    default:
        attribute = Qt::WA_Maemo5AutoOrientation;
        break;
    }
    setAttribute(attribute, true);
#else // Q_OS_SYMBIAN
    Q_UNUSED(orientation);
#endif // Q_OS_SYMBIAN
}

void QmlApplicationViewer::showExpanded()
{
#if defined(Q_OS_SYMBIAN)
    showFullScreen();
#elif defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
    showMaximized();
#else
    show();
#endif
}