Add geocoding support to OSM plugin.

Supports:
  * geocoding
  * reverse geocoding
  * locale results

Change-Id: I1e7f5b5013e3ca56b7abe92d97c8cebc34c21cdd
Reviewed-by: Alex <ablasche@gmail.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/src/plugins/geoservices/osm/qgeocodereplyosm.cpp b/src/plugins/geoservices/osm/qgeocodereplyosm.cpp
new file mode 100644
index 00000000..dfb656dd
--- /dev/null
+++ b/src/plugins/geoservices/osm/qgeocodereplyosm.cpp
@@ -0,0 +1,189 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Aaron McCarthy <mccarthy.aaron@gmail.com>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtLocation module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qgeocodereplyosm.h"
+
+#include <QtCore/QJsonDocument>
+#include <QtCore/QJsonObject>
+#include <QtCore/QJsonArray>
+#include <QtLocation/QGeoCoordinate>
+#include <QtLocation/QGeoAddress>
+#include <QtLocation/QGeoLocation>
+#include <QtLocation/QGeoRectangle>
+
+QT_BEGIN_NAMESPACE
+
+QGeocodeReplyOsm::QGeocodeReplyOsm(QNetworkReply *reply, QObject *parent)
+:   QGeocodeReply(parent), m_reply(reply)
+{
+    connect(m_reply, SIGNAL(finished()), this, SLOT(networkReplyFinished()));
+    connect(m_reply, SIGNAL(error(QNetworkReply::NetworkError)),
+            this, SLOT(networkReplyError(QNetworkReply::NetworkError)));
+
+    setLimit(1);
+    setOffset(0);
+}
+
+QGeocodeReplyOsm::~QGeocodeReplyOsm()
+{
+    if (m_reply)
+        m_reply->deleteLater();
+}
+
+void QGeocodeReplyOsm::abort()
+{
+    if (!m_reply)
+        return;
+
+    m_reply->abort();
+
+    m_reply->deleteLater();
+    m_reply = 0;
+}
+
+void QGeocodeReplyOsm::networkReplyFinished()
+{
+    if (!m_reply)
+        return;
+
+    if (m_reply->error() != QNetworkReply::NoError)
+        return;
+
+    QJsonDocument document = QJsonDocument::fromJson(m_reply->readAll());
+
+    if (document.isObject()) {
+        QJsonObject object = document.object();
+
+        QGeoCoordinate coordinate;
+
+        coordinate.setLatitude(object.value(QStringLiteral("lat")).toString().toDouble());
+        coordinate.setLongitude(object.value(QStringLiteral("lon")).toString().toDouble());
+
+        QJsonObject ao = object.value(QStringLiteral("address")).toObject();
+
+        QGeoAddress address;
+        address.setText(object.value(QStringLiteral("display_name")).toString());
+        address.setCountry(ao.value(QStringLiteral("country")).toString());
+        address.setCountryCode(ao.value(QStringLiteral("country_code")).toString());
+        address.setState(ao.value(QStringLiteral("state")).toString());
+        address.setCity(ao.value(QStringLiteral("city")).toString());
+        address.setDistrict(ao.value(QStringLiteral("suburb")).toString());
+        address.setPostalCode(ao.value(QStringLiteral("postcode")).toString());
+        address.setStreet(ao.value(QStringLiteral("road")).toString());
+
+        QGeoLocation location;
+        location.setCoordinate(coordinate);
+        location.setAddress(address);
+
+        QList<QGeoLocation> locations;
+        locations.append(location);
+
+        setLocations(locations);
+        setFinished(true);
+    } else if (document.isArray()) {
+        QJsonArray results = document.array();
+
+        QList<QGeoLocation> locations;
+
+        for (int i = 0; i < results.count(); ++i) {
+            if (!results.at(i).isObject())
+                continue;
+
+            QJsonObject object = results.at(i).toObject();
+
+            QGeoCoordinate coordinate;
+
+            coordinate.setLatitude(object.value(QStringLiteral("lat")).toString().toDouble());
+            coordinate.setLongitude(object.value(QStringLiteral("lon")).toString().toDouble());
+
+            QGeoRectangle rectangle;
+
+            if (object.contains(QStringLiteral("boundingbox"))) {
+                QJsonArray a = object.value(QStringLiteral("boundingbox")).toArray();
+                if (a.count() == 4) {
+                    rectangle.setTopLeft(QGeoCoordinate(a.at(1).toString().toDouble(),
+                                                        a.at(2).toString().toDouble()));
+                    rectangle.setBottomRight(QGeoCoordinate(a.at(0).toString().toDouble(),
+                                                            a.at(3).toString().toDouble()));
+                }
+            }
+
+            QJsonObject ao = object.value(QStringLiteral("address")).toObject();
+
+            QGeoAddress address;
+            address.setText(object.value(QStringLiteral("display_name")).toString());
+            address.setCountry(ao.value(QStringLiteral("country")).toString());
+            address.setCountryCode(ao.value(QStringLiteral("country_code")).toString());
+            address.setState(ao.value(QStringLiteral("state")).toString());
+            address.setCity(ao.value(QStringLiteral("city")).toString());
+            address.setDistrict(ao.value(QStringLiteral("suburb")).toString());
+            address.setPostalCode(ao.value(QStringLiteral("postcode")).toString());
+            address.setStreet(ao.value(QStringLiteral("road")).toString());
+
+            QGeoLocation location;
+            location.setCoordinate(coordinate);
+            location.setBoundingBox(rectangle);
+            location.setAddress(address);
+            locations.append(location);
+        }
+
+        setLocations(locations);
+        setFinished(true);
+    }
+
+    m_reply->deleteLater();
+    m_reply = 0;
+}
+
+void QGeocodeReplyOsm::networkReplyError(QNetworkReply::NetworkError error)
+{
+    Q_UNUSED(error)
+
+    if (!m_reply)
+        return;
+
+    setError(QGeocodeReply::CommunicationError, m_reply->errorString());
+
+    m_reply->deleteLater();
+    m_reply = 0;
+}
+
+QT_END_NAMESPACE