Here is the quote from the Qt documentation:
Some resources need to change based on the user's locale, such as translation files or icons. This is done by adding a lang attribute to the qresource tag, specifying a suitable locale string. For example:
<qresource> <file>cut.jpg</file> </qresource> <qresource lang="fr"> <file alias="cut.jpg">cut_fr.jpg</file> </qresource>If the user's locale is French (i.e., QLocale::system().name() returns "fr_FR"), :/cut.jpg becomes a reference to the cut_fr.jpg image. For other locales, cut.jpg is used.
I try to do this and I fail. Here is a part from my *.qrc file:
<qresource>
<file>HtmlTemplates/angle.html</file>
<file>HtmlTemplates/bottom.html</file>
<file>HtmlTemplates/top.html</file>
</qresource>
<qresource lang="en">
<file alias="HtmlTemplates/angle.html">HtmlTemplates/en/angle.html</file>
<file alias="HtmlTemplates/bottom.html">HtmlTemplates/en/bottom.html</file>
<file alias="HtmlTemplates/top.html">HtmlTemplates/en/top.html</file>
</qresource>
As you see, it follows exactly the same pattern as the example in the manual. However, trying to compile this file yields this:
..\Blinky_2.0\resources.qrc: Warning: potential duplicate alias detected: 'angle.html'
..\Blinky_2.0\resources.qrc: Warning: potential duplicate alias detected: 'bottom.html'
..\Blinky_2.0\resources.qrc: Warning: potential duplicate alias detected: 'top.html'
And if I try to modify the *.qrc file in QtCreator, it resets it to a wrong state deleting the lang attributes:
<qresource prefix="/">
<file>HtmlTemplates/angle.html</file>
<file>HtmlTemplates/bottom.html</file>
<file>HtmlTemplates/top.html</file>
<file alias="HtmlTemplates/angle.html">HtmlTemplates/en/angle.html</file>
<file alias="HtmlTemplates/bottom.html">HtmlTemplates/en/bottom.html</file>
<file alias="HtmlTemplates/top.html">HtmlTemplates/en/top.html</file>
</qresource>
So I am forced to iterate through resources for different locales in my code. Am I missing something or is this a Qt bug? Qt version is 4.8.4, QtCreator version is 2.8.1.