how to clear QTranslator

VRonin

can you show us the code where you add and remove the translator?

literA2

@VRonin said in how to clear QTranslator:

can you show us the code where you add and remove the translator?

loadTranslator is being called also upon instantiation of the class to load the currently installed translator.

void loadTranslator (QString language)
{
  if (language === "German") {
    translator.load("translation_de_DE", location);
  }  else if (language === "French") {
    translator.load("translation_fr_FR", location);
  } else if (language === "Spanish") {
    translator.load("translation_es_ES", location);
  }
}

void changeLanguage(QString language)
{
   if (!translator.isEmpty()) {
     qApp -> removeTranslator(&translator); // this returns false once there is an existing translator installed
     // if possible i wanted to clear here the translator
   }

   loadTranslator(language);

   if (!translator.isEmpty() && (language != "English")) {
     qApp -> installTranslator(&translator);
   }
 }

SGaist

Are you re-creating the translator at some point ?

literA2

@SGaist said in how to clear QTranslator:

Are you re-creating the translator at some point ?

yes, as i mentioned i have a translator from the main and created another translator from another class. In another class i loaded the file that is currently installed based on the stored language.

SGaist

Then aren't you trying to remove a translator that wasn't installed in the first place ?

literA2

@SGaist said in how to clear QTranslator:

Then aren't you trying to remove a translator that wasn't installed in the first place ?

After checking, it actually installed successfully.

VRonin

The problem is if &translator used in installTranslator is the same as &translator used in removeTranslator. where does translator live. if it's a local variable you are doing it wrong

literA2

@VRonin said in how to clear QTranslator:

The problem is if &translator used in installTranslator is the same as &translator used in removeTranslator. where does translator live. if it's a local variable you are doing it wrong

Shouldn't that be the case? if you remove the previously installed translator, that is also what you need to pass for it to uninstall?

The translator in other class is private.

VRonin

What I mean is:

Wrong:

{
QTranslator translator;
translator.load("translation_de_DE", location);
 qApp -> installTranslator(&translator);
}
{
QTranslator translator;
 qApp -> removeTranslator(&translator);
}

Right:

QTranslator translator;
{
translator.load("translation_de_DE", location);
 qApp -> installTranslator(&translator);
}
{
 qApp -> removeTranslator(&translator);
}

We'd need to see where translator is declared and from where do you call those functions to help you better

literA2

@VRonin osrry, it isn't declared locally on the function. I have declared the it in the header file.

//Settings.h
class Settings : public QObject {
    QTranslator translator;
 }

// Settings.cpp
Settings::Settings(QObject *parent)
   : QObject (parent)
{
    loadTranslator(Profile::Language);
 }

VRonin

@literA2 then what is the life cycle of Settings instance(s)?
is loadTranslator a global function?

literA2

@VRonin loadTranslator is only a private function. Settings lifecycle is as long as the app is running.

SGaist

You should also check that translator.load runs successfully