1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2013-2018 Esri <contracts@esri.com> |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the QtLocation module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:LGPL$ |
9 | ** Commercial License Usage |
10 | ** Licensees holding valid commercial Qt licenses may use this file in |
11 | ** accordance with the commercial license agreement provided with the |
12 | ** Software or, alternatively, in accordance with the terms contained in |
13 | ** a written agreement between you and The Qt Company. For licensing terms |
14 | ** and conditions see https://www.qt.io/terms-conditions. For further |
15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU Lesser General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU Lesser |
19 | ** General Public License version 3 as published by the Free Software |
20 | ** Foundation and appearing in the file LICENSE.LGPL3 included in the |
21 | ** packaging of this file. Please review the following information to |
22 | ** ensure the GNU Lesser General Public License version 3 requirements |
23 | ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. |
24 | ** |
25 | ** GNU General Public License Usage |
26 | ** Alternatively, this file may be used under the terms of the GNU |
27 | ** General Public License version 2.0 or (at your option) the GNU General |
28 | ** Public license version 3 or any later version approved by the KDE Free |
29 | ** Qt Foundation. The licenses are as published by the Free Software |
30 | ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 |
31 | ** included in the packaging of this file. Please review the following |
32 | ** information to ensure the GNU General Public License requirements will |
33 | ** be met: https://www.gnu.org/licenses/gpl-2.0.html and |
34 | ** https://www.gnu.org/licenses/gpl-3.0.html. |
35 | ** |
36 | ** $QT_END_LICENSE$ |
37 | ** |
38 | ****************************************************************************/ |
39 | |
40 | #include "geotiledmapreply_esri.h" |
41 | |
42 | #include <QtLocation/private/qgeotilespec_p.h> |
43 | |
44 | QT_BEGIN_NAMESPACE |
45 | |
46 | static const unsigned char pngSignature[] = {0x89, 0x50, 0x4E, 0x47, 0x0D, 0x0A, 0x1A, 0x0A, 0x00}; |
47 | static const unsigned char jpegSignature[] = {0xFF, 0xD8, 0xFF, 0x00}; |
48 | static const unsigned char gifSignature[] = {0x47, 0x49, 0x46, 0x38, 0x00}; |
49 | |
50 | GeoTiledMapReplyEsri::GeoTiledMapReplyEsri(QNetworkReply *reply, const QGeoTileSpec &spec, |
51 | QObject *parent) : |
52 | QGeoTiledMapReply(spec, parent) |
53 | { |
54 | if (!reply) { |
55 | setError(error: UnknownError, QStringLiteral("Null reply" )); |
56 | return; |
57 | } |
58 | connect(sender: reply, SIGNAL(finished()), receiver: this, SLOT(networkReplyFinished())); |
59 | connect(sender: reply, SIGNAL(errorOccurred(QNetworkReply::NetworkError)), |
60 | receiver: this, SLOT(networkReplyError(QNetworkReply::NetworkError))); |
61 | connect(sender: this, signal: &QGeoTiledMapReply::aborted, receiver: reply, slot: &QNetworkReply::abort); |
62 | connect(sender: this, signal: &QObject::destroyed, receiver: reply, slot: &QObject::deleteLater); |
63 | } |
64 | |
65 | GeoTiledMapReplyEsri::~GeoTiledMapReplyEsri() |
66 | { |
67 | } |
68 | |
69 | void GeoTiledMapReplyEsri::networkReplyFinished() |
70 | { |
71 | QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); |
72 | reply->deleteLater(); |
73 | |
74 | if (reply->error() != QNetworkReply::NoError) |
75 | return; |
76 | |
77 | QByteArray const& imageData = reply->readAll(); |
78 | |
79 | bool validFormat = true; |
80 | if (imageData.startsWith(c: reinterpret_cast<const char*>(pngSignature))) |
81 | setMapImageFormat(QStringLiteral("png" )); |
82 | else if (imageData.startsWith(c: reinterpret_cast<const char*>(jpegSignature))) |
83 | setMapImageFormat(QStringLiteral("jpg" )); |
84 | else if (imageData.startsWith(c: reinterpret_cast<const char*>(gifSignature))) |
85 | setMapImageFormat(QStringLiteral("gif" )); |
86 | else |
87 | validFormat = false; |
88 | |
89 | if (validFormat) |
90 | setMapImageData(imageData); |
91 | |
92 | setFinished(true); |
93 | } |
94 | |
95 | void GeoTiledMapReplyEsri::networkReplyError(QNetworkReply::NetworkError error) |
96 | { |
97 | QNetworkReply *reply = static_cast<QNetworkReply *>(sender()); |
98 | reply->deleteLater(); |
99 | if (error == QNetworkReply::OperationCanceledError) |
100 | setFinished(true); |
101 | else |
102 | setError(error: QGeoTiledMapReply::CommunicationError, errorString: reply->errorString()); |
103 | } |
104 | |
105 | QT_END_NAMESPACE |
106 | |