Th30z - Coding on the Fly » Google Services

Qt4 Google Contacts APIs

Matteo Bertozzi — Fri, 24 Jul 2009 05:53:54 +0000

Just pushed at GitHub the first draft of the Qt4 Google Contacts Service…

Contacts APIs allows client applications to view and update Contacts content in the form of Google Data API feeds. Your client application can request a list of a user’s contacts, edit or delete content in an existing contact.


// Setup Contact
THGoogleContact *contact = new THGoogleContact;
contact->setFullName("John Doe");

THGoogleIm *im = new THGoogleIm;
im->setRel(THGoogleIm::relWork());
im->setAddress("john.doe@aim.com");
im->setProtocol(THGoogleIm::protocolAim());
contact->addImAddress(im);

THGoogleEmail *email = new THGoogleEmail;
email->setAddress("john.doe@mail.com");
email->setRel(THGoogleEmail::relWork());
contact->addEmailAddress(email);

// Insert Contact
THGoogleContactsService *gContacts = new THGoogleContactsService;
gContacts->setAuthToken(...);
gContacts->insertContact(contact);

Take a look at contacttest.cpp for a more complete usage example.

Qt4 Google Services: Translator, Spell Checker and more…

Matteo Bertozzi — Sat, 06 Jun 2009 07:31:16 +0000

Last month I’ve made a simple wrapper for Google Authentication, Today I’ve written other 4 classes to wrap the Google’s Translator, Language Detector, Suggestions and the Spell Checker Services.

Translator Example


QEventLoop l;
THGoogleTranslator gTranslator;
connect(&gTranslator, SIGNAL(finished(bool)), &l, SLOT(quit()));
gTranslator.setDestinationLanguage("en");
gTranslator.translate("Ciao");
l.exec();

qDebug() << gTranslator.translatedText(); // Maybe "Hello"
qDebug() << gTranslator.detectedSourceLanguage(); // Maybe "it"

Suggest Example


QEventLoop l;
THGoogleSuggest gSuggest;
connect(&gSuggest, SIGNAL(finished(bool)), &l, SLOT(quit()));
gSuggest.suggest("Qt Softw");
l.exec();

qDebug() << gSuggest.suggestions();
// ("qt software", "qt software download", "qt software gpl exception", ...)

Spell Checker Example


QEventLoop l;
THGoogleSpellChecker gSpellChecker;
connect(&gSpellChecker, SIGNAL(finished(bool)), &l, SLOT(quit()));
gSpellChecker.spellCheck("Gogl Spll");
l.exec();

// "Gogl" ("Google", "Gogol", "Gog", "Goal", "Gog's")
// "Spll" ("Spell", "Sp ll", "Sp-ll", "Spill", "Sell")
foreach (QString original, gSpellChecker.keys())
    qDebug() << original << gSpellChecker.suggestions(original);

Language Detector Example


QEventLoop l;
THGoogleDetectLanguage gDetectLang;
connect(&gDetectLang, SIGNAL(finished(bool)), &l, SLOT(quit()));
gDetectLang.detectLanguage("Ciao");
l.exec();

qDebug() << "Query" << gDetectLang.query();
qDebug() << "Language" << gDetectLang.language(); // Maybe "it"
qDebug() << "Is Reliable" << gDetectLang.isReliable();
qDebug() << "Confidence" << gDetectLang.confidence();

You can find the source at GitHub (Git WebView) or you can download the source code Here: Qt4 Google Services Take 2 Source Code.

Qt4 Google Authentication

Matteo Bertozzi — Fri, 01 May 2009 11:53:11 +0000

Today, I’m looking at Google services, Contacts, Maps, Search… to use all this service in your app you need to get The Authentication Token (see the Google Auth For Installed Apps page). So, I’ve implemented a simple class to do this.


QEventLoop q;
THGoogleAuth gAuth("MYNAME@gmail.com");
QObject::connect(&gAuth, SIGNAL(authenticated()), &q, SLOT(quit()));
gAuth.login(THGoogleAuth::Contacts, "MYPASSWORD");
q.exec();

if (gAuth.error() == THGoogleAuth::NoError) {
    qDebug() << "SID" << gAuth.sid();
    qDebug() << "LSID" << gAuth.lsid();
    qDebug() << "AUTH" << gAuth.auth();
} else {
    qDebug() << gAuth.errorString();
}

The Source Code is Available Here: Qt4 Google Auth Source Code.