How to translate qsTr fields by default - for example. MessageDialog Yes / No Buttons

Question

I have a small application that uses Qt Quick MessageDialog . I created translation files using the command

 lupdate-qt5 ../myapp.pro . 

In myapp.pro, I indicated:

 lupdate_only { SOURCES += $$PWD/ui/*.qml } 

and

 TRANSLATIONS += \ translations/i18n_nl.ts translations/i18n_fr.ts translations/i18n_en.ts 

All translations are generated correctly. But I do not know how to create translations for the standard buttons that MessageDialog provides. The following example creates translations for “Warning” and “Please select“ Yes ”or“ No. ”But I cannot get them generated for“ Yes ”or“ No ”(this is the text value of the StandardButtons property)

 MessageDialog { title: qsTr("Warning") text: qsTr("Please select Yes or No") icon: StandardIcon.Warning standardButtons: StandardButton.Yes | StandardButton.No //..... } 

I checked the source code and it indicates that they should be translated:

 Button { id: yesButton text: qsTr("Yes") onClicked: root.click(StandardButton.Yes) visible: root.standardButtons & StandardButton.Yes } 

I also tried manually adding the Yes and No entry, but this does not seem to help.

I found the problem https://stackoverflow.com/a/16626960/163848 which says about adding a qml file to the .pro file so that it works, and this is what I already do, I would like to add a built-in MessageDialog , but I have concepts don't have how to do this.

As a final note: I know that in Qt 5.3 qsTr were not in MessageDialog . But starting with Qt 5.4 they are. I'm on Qt 5.5 now

Any help is greatly appreciated.

EDIT

After posting this, I continued to search and found an interesting post of the one who had the same problem. Unfortunately, there is no answer.

EDIT 2

Thank you for the answer. I tried both sentences, but did not succeed. I also tried something else. I added qDebug to my code to see if it will translate. I was hoping the same translation would be used for MessageDialog , but unfortunately this is not the case.

 qDebug() << "Translate yes :" << tr("Yes"); //translates correctly, dialog doesn't 

I also tried to create a dialogue from scratch that does the same as the built-in messagedialog, but currently my qml knowledge is too limited to make it work.

Answer 1

Required translations should be found inside the qtquickcontrols_*.qm file. Translation Deployment claims it

Typically, an application has .qm files, and if you are using a version of Qt that is not installed on your system, Qt.qm files must also be deployed.

However, your application may simply not find a suitable translation file. If you only need translations for Yes and No , you can also add them to your translation files with the DefaultMessageDialog context

 <?xml version="1.0" encoding="utf-8"?> <!DOCTYPE TS> <TS version="2.1"> <context> <name>DefaultMessageDialog</name> <message> <source>Yes</source> <translation type="unfinished"></translation> </message> <message> <source>No</source> <translation type="unfinished"></translation> </message> </context> </TS> 

Adding a built-in MessageDialog will also work. Or, if you want, you can simply use the dummy DefaultMessageDialog.qml file

 Rectangle { Button { id: yesButton text: qsTr("Yes") } Button { id: noButton text: qsTr("No") } } 

and add this instead.