qmlapplicationviewer.cpp Example File

video/qmlvideofx/qmlapplicationviewer/qmlapplicationviewer.cpp
/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL21$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 or version 3 as published by the Free
** Software Foundation and appearing in the file LICENSE.LGPLv21 and
** LICENSE.LGPLv3 included in the packaging of this file. Please review the
** following information to ensure the GNU Lesser General Public License
** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include "qmlapplicationviewer.h"

#include <QtCore/QDir>
#include <QtCore/QFileInfo>
#include <QtQml/QQmlComponent>
#include <QtQml/QQmlEngine>
#include <QtQml/QQmlContext>
#include <QtGui/QGuiApplication>

class QmlApplicationViewerPrivate
{
    QmlApplicationViewerPrivate(QQuickView *view_) : view(view_) {}

    QString mainQmlFile;
    QQuickView *view;
    friend class QmlApplicationViewer;
    QString adjustPath(const QString &path);
};

QString QmlApplicationViewerPrivate::adjustPath(const QString &path)
{
#ifdef Q_OS_UNIX
#ifdef Q_OS_MAC
    if (!QDir::isAbsolutePath(path))
        return QCoreApplication::applicationDirPath()
                + QLatin1String("/../Resources/") + path;
#else
    QString pathInInstallDir;
    const QString applicationDirPath = QCoreApplication::applicationDirPath();
    pathInInstallDir = QString::fromLatin1("%1/../%2").arg(applicationDirPath, path);

    if (QFileInfo(pathInInstallDir).exists())
        return pathInInstallDir;
#endif
#endif
    return path;
}

QmlApplicationViewer::QmlApplicationViewer(QWindow *parent)
    : QQuickView(parent)
    , d(new QmlApplicationViewerPrivate(this))
{
    connect(engine(), SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit()));
    setResizeMode(QQuickView::SizeRootObjectToView);
}

QmlApplicationViewer::QmlApplicationViewer(QQuickView *view, QWindow *parent)
    : QQuickView(parent)
    , d(new QmlApplicationViewerPrivate(view))
{
    connect(view->engine(), SIGNAL(quit()), QCoreApplication::instance(), SLOT(quit()));
    view->setResizeMode(QQuickView::SizeRootObjectToView);
}

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

QmlApplicationViewer *QmlApplicationViewer::create()
{
    return new QmlApplicationViewer();
}

void QmlApplicationViewer::setMainQmlFile(const QString &file)
{
    d->mainQmlFile = d->adjustPath(file);
    d->view->setSource(QUrl::fromLocalFile(d->mainQmlFile));
}

void QmlApplicationViewer::addImportPath(const QString &path)
{
    d->view->engine()->addImportPath(d->adjustPath(path));
}

void QmlApplicationViewer::showExpanded()
{
#if defined(Q_WS_SIMULATOR)
    d->view->showFullScreen();
#else
    d->view->show();
#endif
}

QGuiApplication *createApplication(int &argc, char **argv)
{
    return new QGuiApplication(argc, argv);
}

© 2015 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.