-
Notifications
You must be signed in to change notification settings - Fork 1
/
translate_api.cpp
160 lines (131 loc) · 5.31 KB
/
translate_api.cpp
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
47
48
49
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
#include "translate_api.h"
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QEventLoop>
#include <QUrl>
#include <QByteArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QJsonValue>
#include <QVector>
#include <QMessageBox>
YandexTranslate::YandexTranslate()
{}
YandexTranslate::~YandexTranslate()
{}
void YandexTranslate::getSupportedLanguages()
{
// Create a request.
QUrl url(QString("https://translate.yandex.net/api/v1.5/tr.json/getLangs?")
+ QString("key=") + trnsl_api_key
+ QString("&ui=") + QString("en")
);
QNetworkRequest request(url);
request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
// Send the request.
QEventLoop loop;
QNetworkAccessManager manager;
connect(&manager, &QNetworkAccessManager::finished, &loop, &QEventLoop::quit);
// Receive a reply.
QNetworkReply* reply = manager.get(request);
loop.exec();
// Parse the reply.
QByteArray bytes = reply->readAll();
QJsonObject obj = QJsonDocument::fromJson(bytes).object(); // Keys are ("dirs", "langs")
// qDegub() << obj.keys(); // Use it to check the keys.
// Check the response codes.
if(obj.contains("code") && obj.contains("message"))
{
QMessageBox messageBox;
messageBox.critical(0,QString::number(obj.value("code").toDouble()),obj.value("message").toString());
messageBox.setFixedSize(500,200);
// TODO: Error handling.
}
/* Use the following commented line to check the type of an object
* when you are not sure.
* There're also such functions as isArray(), isDouble(), etc.
* See Qt Documentation for more examples. */
//qDebug() << obj.value("langs").isObject();
QJsonObject langs = obj.value("langs").toObject();
for(const QString& code : langs.keys())
{
QString lang = langs.value(code).toString(); // "lang" is a full name of a language.
languages[code] = lang;
}
emit languagesReceived(languages); // If you want to use Dictionary API as well, you should transfer languages and their codes to the corresponding object.
}
QString YandexTranslate::detectLanguage(QString &source_text)
{
// Create a request.
QUrl url(QString("https://translate.yandex.net/api/v1.5/tr.json/detect?")
+ QString("key=") + trnsl_api_key
+ QString("&text=") + source_text
//+ QString("&hint=") + <list of probable text languages>
);
QNetworkRequest request(url);
request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
// Send the request.
QEventLoop loop;
QNetworkAccessManager manager;
connect(&manager, &QNetworkAccessManager::finished, &loop, &QEventLoop::quit);
// Receive a reply.
QNetworkReply* reply = manager.get(request);
loop.exec();
// Parse the reply.
QByteArray bytes = reply->readAll();
QJsonObject obj = QJsonDocument::fromJson(bytes).object(); // Keys are ("code", "lang")
// Check the response codes.
if(obj.contains("code") && obj.contains("message"))
{
QMessageBox messageBox;
messageBox.critical(0,QString::number(obj.value("code").toDouble()),obj.value("message").toString());
messageBox.setFixedSize(500,200);
// TODO: Error handling.
}
// Return a detected language.
QString lang_code = obj.value("lang").toString();
return languages[lang_code]; // Return the full name of a detected language.
}
QStringList YandexTranslate::translate(QString& source_lang, QString& target_lang, QString& text_to_translate)
{
// Create a request.
QUrl url(QString("https://translate.yandex.net/api/v1.5/tr.json/translate?")
+ QString("key=") + trnsl_api_key
+ QString("&lang=")
+ languages.key(source_lang) + "-" + languages.key(target_lang)
+ QString("&text=") + text_to_translate
//+ QString("&format=") + <text format>
//+ QString("&options=") + <translation options>
);
QNetworkRequest request(url);
request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
// Send the request.
QEventLoop loop;
QNetworkAccessManager manager;
connect(&manager, &QNetworkAccessManager::finished, &loop, &QEventLoop::quit);
// Receive a reply.
QNetworkReply* reply = manager.get(request);
loop.exec();
// Parse the reply.
QByteArray bytes = reply->readAll();
QJsonObject obj = QJsonDocument::fromJson(bytes).object(); // Keys are ("code", "lang", "text")
// Check the response codes.
if(obj.contains("code") && obj.contains("message"))
{
QMessageBox messageBox;
messageBox.critical(0,QString::number(obj.value("code").toDouble()),obj.value("message").toString());
messageBox.setFixedSize(500,200);
// TODO: Error handling.
}
//QString dir = obj.value("lang").toString(); // Use the auto-defined translation direction from the server.
// Return the translated text.
QJsonArray text = obj.value("text").toArray();
QStringList result; // The result of translation, i.e. text.
for(QJsonValue v : text)
{
result << v.toString();
}
return result;
}