add test case for qrc translations

test cases/frameworks/4 qt/main.cpp

@@ -1,4 +1,6 @@
 #include <QApplication>
+#include <QTranslator>
+#include <QDebug>
 #include "mainWindow.h"
 
 #if QT_VERSION > 0x050000
@@ -16,6 +18,13 @@ int main(int argc, char **argv) {
   Q_INIT_RESOURCE(stuff2);
   #endif
   QApplication app(argc, argv);
+
+  auto *translator = new QTranslator;
+  if (translator->load(QLocale(), QT "embedded", "_", ":/lang"))
+      qApp->installTranslator(translator);
+
+  qDebug() << QObject::tr("Translate me!");
+
   MainWindow *win = new MainWindow();
   QImage qi(":/thing.png");
   if(qi.width() != 640) {

test cases/frameworks/4 qt/meson.build

@@ -81,10 +81,16 @@ foreach qt : ['qt4', 'qt5', 'qt6']
     # qt4-rcc and qt5-rcc take different arguments, for example qt4: ['-compress', '3']; qt5: '--compress=3'
     qtmodule.preprocess(qt + 'testrccarg', qresources : files(['stuff.qrc', 'stuff2.qrc']), rcc_extra_arguments : '--compress=3', method : get_option('method'))
 
+    translations_cpp = qtmodule.compile_translations(qresource: qt+'_lang.qrc')
+    # unity builds suck and definitely cannot handle two qrc embeds in one compilation unit
+    unityproof_translations = static_library('unityproof_translations', translations_cpp)
+
+    extra_cpp_args += '-DQT="@0@"'.format(qt)
     qexe = executable(qt + 'app',
       sources : ['main.cpp', 'mainWindow.cpp', # Sources that don't need preprocessing.
       prep, prep_rcc],
       dependencies : qtdep,
+      link_with: unityproof_translations,
       cpp_args: extra_cpp_args,
       gui_app : true)
 

test cases/frameworks/4 qt/qt4_lang.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/lang">
+        <file>qt4embedded_fr.qm</file>
+    </qresource>
+</RCC>
+

test cases/frameworks/4 qt/qt4embedded_fr.ts

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.0" language="fr_FR">
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="q5core.cpp" line="23"/>
+        <source>Translate me!</source>
+        <translation>Traduisez moi!</translation>
+    </message>
+</context>
+</TS>

test cases/frameworks/4 qt/qt5_lang.qrc

@@ -0,0 +1,6 @@
+<RCC>
+    <qresource prefix="/lang">
+        <file>qt5embedded_fr.qm</file>
+    </qresource>
+</RCC>
+

test cases/frameworks/4 qt/qt5embedded_fr.ts

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="fr_FR">
+<context>
+    <name>QObject</name>
+    <message>
+        <location filename="q5core.cpp" line="23"/>
+        <source>Translate me!</source>
+        <translation>Traduisez moi!</translation>
+    </message>
+</context>
+</TS>