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#include <QtGui>
#include <QGeoCoordinate>
#include <QGeoMappingManagerEngine>
#include <QGraphicsGeoMap>
#include "mapwindow.h"

using namespace QtMobility;

MapWindow::MapWindow()
{
    scene = new QGraphicsScene(this);

    findServices();

    QGraphicsView *view = new QGraphicsView(this);
    view->setScene(scene);
    setCentralWidget(view);
}

void MapWindow::findServices()
{
    QMenu *serviceMenu = menuBar()->addMenu(tr("&Services"));

    actionGroup = new QActionGroup(this);
    actionGroup->setExclusive(true);
    connect(actionGroup, SIGNAL(triggered(QAction *)),
            this, SLOT(selectService(QAction *)));

    foreach (const QString &name, QGeoServiceProvider::availableServiceProviders()) {

        QGeoServiceProvider *service = new QGeoServiceProvider(name);
        services[name] = service;
        QAction *action = serviceMenu->addAction(name);
        action->setCheckable(true);
        actionGroup->addAction(action);
    }

    if (services.isEmpty()) {

        QGraphicsTextItem *item = scene->addText(
            tr("Failed to find any map services. Please ensure that "
               "the location services plugins for Qt Mobility have "
               "been built and, if necessary, set the QT_PLUGIN_PATH "
               "environment variable to the location of the Qt Mobility "
               "plugins directory."));
        item->setTextWidth(300);
        QAction *action = serviceMenu->addAction(tr("No services"));
        action->setEnabled(false);
    } else
        actionGroup->actions()[0]->trigger();
}

void MapWindow::selectService(QAction *action)
{
    action->setChecked(true);
    QString name = action->text();

    scene->clear();

    QGeoServiceProvider *service = services[name];
    if (service->error() != QGeoServiceProvider::NoError) {

        QGraphicsTextItem *item = scene->addText(
            tr("The \"%1\" service failed with the following error:\n'"
               "%2").arg(name).arg(service->errorString()));
        item->setTextWidth(300);
    } else {
        QGeoMappingManager *manager = service->mappingManager();
        QGraphicsGeoMap *geoMap = new QGraphicsGeoMap(manager);
        scene->addItem(geoMap);

        geoMap->resize(300, 300);
        geoMap->setCenter(QGeoCoordinate(37.76, -25.675));
        geoMap->setMapType(QGraphicsGeoMap::TerrainMap);
        geoMap->setZoomLevel(12);
    }
}