pfdqmlgadgetwidget.cpp

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/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>
 */

#include "pfdqmlgadgetwidget.h"
#include "extensionsystem/pluginmanager.h"
#include "uavobjects/uavobjectmanager.h"
#include "uavobjects/uavobject.h"
#include "utils/svgimageprovider.h"
#include <QDebug>
#include <QSvgRenderer>
#include <QtCore/qfileinfo.h>
#include <QtCore/qdir.h>
#include <QMouseEvent>

#include <QQmlEngine>
#include <QQmlContext>
#include "stabilizationdesired.h"

PfdQmlGadgetWidget::PfdQmlGadgetWidget(QWindow *parent)
    : QQuickView(parent)
{
    setResizeMode(SizeRootObjectToView);

    objectsToExport << "VelocityActual"
                    << "PositionActual"
                    << "AttitudeActual"
                    << "AttitudeSimulated"
                    << "AirspeedActual"
                    << "Accels"
                    << "Magnetometer"
                    << "VelocityDesired"
                    << "StabilizationDesired"
                    << "PathDesired"
                    << "HomeLocation"
                    << "Waypoint"
                    << "WaypointActive"
                    << "GPSPosition"
                    << "GCSTelemetryStats"
                    << "FlightBatteryState";

    ExtensionSystem::PluginManager *pm = ExtensionSystem::PluginManager::instance();
    m_objManager = pm->getObject<UAVObjectManager>();

    foreach (const QString &objectName, objectsToExport) {
        exportUAVOInstance(objectName, 0);
    }

    // to expose settings values
    engine()->rootContext()->setContextProperty("qmlWidget", this);
}

PfdQmlGadgetWidget::~PfdQmlGadgetWidget() {}

void PfdQmlGadgetWidget::exportUAVOInstance(const QString &objectName, int instId)
{
    UAVObject *object = m_objManager->getObject(objectName, instId);
    if (object)
        engine()->rootContext()->setContextProperty(objectName, object);
    else
        qWarning() << "[PFDQML] Failed to load object" << objectName;
}

void PfdQmlGadgetWidget::resetUAVOExport(const QString &objectName, int instId)
{
    UAVObject *object = m_objManager->getObject(objectName, instId);
    if (object)
        engine()->rootContext()->setContextProperty(objectName, nullptr);
    else
        qWarning() << "Failed to load object" << objectName;
}

void PfdQmlGadgetWidget::setQmlFile(QString fn)
{
    m_qmlFileName = fn;

    engine()->removeImageProvider("svg");
    SvgImageProvider *svgProvider = new SvgImageProvider(fn);
    engine()->addImageProvider("svg", svgProvider);

    engine()->clearComponentCache();

    // it's necessary to allow qml side to query svg element position
    engine()->rootContext()->setContextProperty("svgRenderer", svgProvider);
    engine()->setBaseUrl(QUrl::fromLocalFile(fn));

    setSource(QUrl::fromLocalFile(fn));

    foreach (const QQmlError &error, errors()) {
        qDebug() << error.description();
    }
}

void PfdQmlGadgetWidget::setSettingsMap(const QVariantMap &settings)
{
    engine()->rootContext()->setContextProperty("settings", settings);
}

void PfdQmlGadgetWidget::mouseReleaseEvent(QMouseEvent *event)
{
    // Reload the schene on the middle mouse button click.
    if (event->button() == Qt::MiddleButton) {
        setQmlFile(m_qmlFileName);
    }

    QQuickView::mouseReleaseEvent(event);
}