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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
GeoTiledMapReplyEsri(QNetworkReply * reply,const QGeoTileSpec & spec,QObject * parent)50 GeoTiledMapReplyEsri::GeoTiledMapReplyEsri(QNetworkReply *reply, const QGeoTileSpec &spec,
51 QObject *parent) :
52 QGeoTiledMapReply(spec, parent)
53 {
54 if (!reply) {
55 setError(UnknownError, QStringLiteral("Null reply"));
56 return;
57 }
58 connect(reply, SIGNAL(finished()), this, SLOT(networkReplyFinished()));
59 connect(reply, SIGNAL(errorOccurred(QNetworkReply::NetworkError)),
60 this, SLOT(networkReplyError(QNetworkReply::NetworkError)));
61 connect(this, &QGeoTiledMapReply::aborted, reply, &QNetworkReply::abort);
62 connect(this, &QObject::destroyed, reply, &QObject::deleteLater);
63 }
64
~GeoTiledMapReplyEsri()65 GeoTiledMapReplyEsri::~GeoTiledMapReplyEsri()
66 {
67 }
68
networkReplyFinished()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(reinterpret_cast<const char*>(pngSignature)))
81 setMapImageFormat(QStringLiteral("png"));
82 else if (imageData.startsWith(reinterpret_cast<const char*>(jpegSignature)))
83 setMapImageFormat(QStringLiteral("jpg"));
84 else if (imageData.startsWith(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
networkReplyError(QNetworkReply::NetworkError error)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(QGeoTiledMapReply::CommunicationError, reply->errorString());
103 }
104
105 QT_END_NAMESPACE
106