QGeoMapReplyQGC.cpp 6.03 KB
Newer Older
dogmaphobic's avatar
dogmaphobic committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
/****************************************************************************
**
** 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.
**
**
** $QT_END_LICENSE$
**
** 2015.4.4
** Adapted for use with QGroundControl
**
** Gus Grubba <mavlink@grubba.com>
**
****************************************************************************/

dogmaphobic's avatar
dogmaphobic committed
47 48 49
#include "QGCMapEngine.h"
#include "QGeoMapReplyQGC.h"

dogmaphobic's avatar
dogmaphobic committed
50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171
#include <QtLocation/private/qgeotilespec_p.h>
#include <QtNetwork/QNetworkAccessManager>
#include <QFile>

//-----------------------------------------------------------------------------
QGeoTiledMapReplyQGC::QGeoTiledMapReplyQGC(QNetworkAccessManager *networkManager, const QNetworkRequest &request, const QGeoTileSpec &spec, QObject *parent)
    : QGeoTiledMapReply(spec, parent)
    , _reply(NULL)
    , _request(request)
    , _networkManager(networkManager)
{
    if(_request.url().isEmpty()) {
        if(!_badMapBox.size()) {
            QFile b(":/res/notile.png");
            if(b.open(QFile::ReadOnly))
                _badMapBox = b.readAll();
        }
        setMapImageData(_badMapBox);
        setMapImageFormat("png");
        setFinished(true);
        setCached(false);
    } else {
        QGCFetchTileTask* task = getQGCMapEngine()->createFetchTileTask((UrlFactory::MapType)spec.mapId(), spec.x(), spec.y(), spec.zoom());
        connect(task, &QGCFetchTileTask::tileFetched, this, &QGeoTiledMapReplyQGC::cacheReply);
        connect(task, &QGCMapTask::error, this, &QGeoTiledMapReplyQGC::cacheError);
        getQGCMapEngine()->addTask(task);
    }
}

//-----------------------------------------------------------------------------
QGeoTiledMapReplyQGC::~QGeoTiledMapReplyQGC()
{
    if (_reply) {
        _reply->deleteLater();
        _reply = 0;
    }
}
//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::abort()
{
    if (_reply)
        _reply->abort();
}

//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::replyDestroyed()
{
    _reply = 0;
}

//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::networkReplyFinished()
{
    if (!_reply) {
        return;
    }
    if (_reply->error() != QNetworkReply::NoError) {
        return;
    }
    QByteArray a = _reply->readAll();
    setMapImageData(a);
    QString format = getQGCMapEngine()->urlFactory()->getImageFormat((UrlFactory::MapType)tileSpec().mapId(), a);
    if(!format.isEmpty()) {
        setMapImageFormat(format);
        getQGCMapEngine()->cacheTile((UrlFactory::MapType)tileSpec().mapId(), tileSpec().x(), tileSpec().y(), tileSpec().zoom(), a, format);
    }
    setFinished(true);
    _reply->deleteLater();
    _reply = 0;
}

//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::networkReplyError(QNetworkReply::NetworkError error)
{
    if (!_reply) {
        return;
    }
    if (error != QNetworkReply::OperationCanceledError) {
        qWarning() << "Fetch tile error:" << _reply->errorString();
    }
    _reply->deleteLater();
    _reply = 0;
    if(!_badTile.size()) {
        QFile b(":/res/notile.png");
        if(b.open(QFile::ReadOnly))
            _badTile = b.readAll();
    }
    setMapImageData(_badTile);
    setMapImageFormat("png");
    setFinished(true);
    setCached(false);
}

//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::cacheError(QGCMapTask::TaskType type, QString /*errorString*/)
{
    if(type != QGCMapTask::taskFetchTile) {
        qWarning() << "QGeoTiledMapReplyQGC::cacheError() for wrong task";
    }
    //-- Tile not in cache. Get it off the Internet.
    _reply = _networkManager->get(_request);
    _reply->setParent(0);
    connect(_reply, SIGNAL(finished()),                         this, SLOT(networkReplyFinished()));
    connect(_reply, SIGNAL(error(QNetworkReply::NetworkError)), this, SLOT(networkReplyError(QNetworkReply::NetworkError)));
    connect(_reply, SIGNAL(destroyed()),                        this, SLOT(replyDestroyed()));
}

//-----------------------------------------------------------------------------
void
QGeoTiledMapReplyQGC::cacheReply(QGCCacheTile* tile)
{
    setMapImageData(tile->img());
    setMapImageFormat(tile->format());
    setFinished(true);
    setCached(true);
    tile->deleteLater();
}