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//
// This file is part of the Marble Virtual Globe.
//
// This program is free software licensed under the GNU LGPL. You can
// find a copy of this license in LICENSE.txt in the top directory of
// the source code.
//
// Copyright 2014 Abhinav Gangwar <abhgang@gmail.com>
//
// Self
#include "CountryByFlag.h"
// Qt
#include <QTime>
#include <QImage>
#include <QString>
#include <QVector>
#include <QVariant>
#include <QVariantList>
// Marble
#include <marble/MarbleWidget.h>
#include <marble/MarbleModel.h>
#include <marble/GeoDataTreeModel.h>
#include <marble/MarbleDirs.h>
#include <marble/MarbleDebug.h>
#include <marble/MarblePlacemarkModel.h>
#include <marble/GeoDataDocument.h>
#include <marble/GeoDataPlacemark.h>
#include <marble/GeoDataTypes.h>
namespace Marble
{
class CountryByFlagPrivate
{
public:
CountryByFlagPrivate( MarbleWidget *marbleWidget )
: m_marbleWidget( marbleWidget ),
m_parent( 0 ),
m_countryNames( 0 )
{
m_continentsAndOceans << "Asia" << "Africa" << "North America" << "South America"
<< "Antarctica" << "Europe" << "Australia" << "Arctic Ocean" << "Indian Ocean"
<< "North Atlantic Ocean" << "North Pacific Ocean" << "South Pacific Ocean"
<< "South Atlantic Ocean" << "Southern Ocean" ;
}
MarbleWidget *m_marbleWidget;
CountryByFlag *m_parent;
/**
* Document to store point placemarks which
* have country names ( from file "boundaryplacemarks.cache" )
*/
GeoDataDocument *m_countryNames;
/*
* When I select a random placemark form boundaryplacemarks.cache
* it may represent a continent. Since there is no flag
* for a continent, we will not use this placemark to post question.
* This list will help checking whether the placemark chosen to
* post question is a continent/ocean .
*/
QStringList m_continentsAndOceans;
};
CountryByFlag::CountryByFlag( MarbleWidget *marbleWidget )
: QObject(),
d ( new CountryByFlagPrivate(marbleWidget) )
{
d->m_parent = this;
}
CountryByFlag::~CountryByFlag()
{
delete d->m_countryNames;
delete d;
}
void CountryByFlag::initiateGame()
{
/**
* First remove the GeoDataDocument, which displays
* country names, from map.
*/
if ( !d->m_countryNames ) {
const GeoDataTreeModel *const treeModel = d->m_marbleWidget->model()->treeModel();
for ( int i = 0; i < treeModel->rowCount(); ++i ) {
QVariant const data = treeModel->data ( treeModel->index ( i, 0 ), MarblePlacemarkModel::ObjectPointerRole );
GeoDataObject *object = qvariant_cast<GeoDataObject*>( data );
Q_ASSERT_X( object, "CountryByFlag::initiateGame",
"failed to get valid data from treeModel for GeoDataObject" );
if ( object->nodeType() == GeoDataTypes::GeoDataDocumentType ) {
GeoDataDocument *doc = static_cast<GeoDataDocument*>( object );
QFileInfo fileInfo( doc->fileName() );
if ( fileInfo.fileName() == QString("boundaryplacemarks.cache") ) {
d->m_countryNames = doc;
break;
}
}
}
}
if ( d->m_countryNames ) {
d->m_countryNames->setVisible( false );
d->m_marbleWidget->model()->treeModel()->updateFeature( d->m_countryNames );
d->m_marbleWidget->centerOn( 23.0, 42.0 );
d->m_marbleWidget->setDistance( 7500 );
d->m_marbleWidget->setHighlightEnabled( false );
emit gameInitialized();
}
}
void CountryByFlag::postQuestion( QObject *gameObject )
{
/**
* Find a random placemark
*/
Q_ASSERT_X( d->m_countryNames, "CountryByFlag::postQuestion",
"CountryByFlagPrivate::m_countryNames is NULL" );
QVector<GeoDataPlacemark*> countryPlacemarks = d->m_countryNames->placemarkList();
uint randomSeed = uint(QTime::currentTime().msec());
qsrand( randomSeed );
bool found = false;
GeoDataPlacemark *placemark = 0;
QVariantList answerOptions;
QString flagPath;
while ( !found ) {
int randomIndex = qrand()%countryPlacemarks.size();
placemark = countryPlacemarks[randomIndex];
if ( !d->m_continentsAndOceans.contains(placemark->name(), Qt::CaseSensitive) ) {
flagPath = MarbleDirs::path( QString("flags/flag_%1.svg").arg(placemark->countryCode().toLower()) );
QImage flag = QFile::exists( flagPath ) ? QImage( flagPath ) : QImage();
if ( !flag.isNull() ) {
flagPath = QString("%1flag_%2.svg").arg("../../../data/flags/").arg(placemark->countryCode().toLower());
found = true;
}
}
}
answerOptions << placemark->name()
<< countryPlacemarks[qrand()%countryPlacemarks.size()]->name()
<< countryPlacemarks[qrand()%countryPlacemarks.size()]->name()
<< countryPlacemarks[qrand()%countryPlacemarks.size()]->name();
// Randomize the options in the list answerOptions
for ( int i = 0; i < answerOptions.size(); ++i ) {
QVariant option = answerOptions.takeAt( qrand()%answerOptions.size() );
answerOptions.append( option );
}
if ( gameObject ) {
QMetaObject::invokeMethod( gameObject, "countryByFlagQuestion",
Q_ARG(QVariant, QVariant::fromValue(answerOptions)),
Q_ARG(QVariant, QVariant::fromValue(flagPath)),
Q_ARG(QVariant, QVariant::fromValue(placemark->name())) );
}
}
} // namespace Marble
#include "moc_CountryByFlag.cpp"
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