Qt: Fix loading translations

src/platform/qt/CMakeLists.txt

@@ -236,7 +236,7 @@ if(Qt5LinguistTools_FOUND)
 		qt5_add_translation(TRANSLATION_FILES ${TS_FILES})
 	endif()
 	add_custom_command(OUTPUT ${TRANSLATION_QRC}
-		               COMMAND ${CMAKE_COMMAND} -DTRANSLATION_QRC:FILEPATH="${TRANSLATION_QRC}" -DTRANSLATION_FILES="${TRANSLATION_FILES}" -P "${CMAKE_CURRENT_SOURCE_DIR}/ts.cmake"
+		               COMMAND ${CMAKE_COMMAND} -DTRANSLATION_QRC:FILEPATH="${TRANSLATION_QRC}" -DQM_BASE="${CMAKE_CURRENT_BINARY_DIR}" -P "${CMAKE_CURRENT_SOURCE_DIR}/ts.cmake"
 		               DEPENDS ${TRANSLATION_FILES})
 	qt5_add_resources(TRANSLATION_RESOURCES ${TRANSLATION_QRC})
 	list(APPEND RESOURCES ${TRANSLATION_RESOURCES})

src/platform/qt/main.cpp

@@ -6,6 +6,11 @@
 #include "GBAApp.h"
 #include "Window.h"
 
+#include <QLibraryInfo>
+#include <QTranslator>
+
+#include <mgba/core/version.h>
+
 #ifdef QT_STATIC
 #include <QtPlugin>
 #ifdef _WIN32
@@ -18,5 +23,16 @@ Q_IMPORT_PLUGIN(QWindowsAudioPlugin);
 
 int main(int argc, char* argv[]) {
 	QGBA::GBAApp application(argc, argv);
+
+	QLocale locale = QLocale::system();
+
+	QTranslator qtTranslator;
+	qtTranslator.load(locale, "qt", "_", QLibraryInfo::location(QLibraryInfo::TranslationsPath));
+	application.installTranslator(&qtTranslator);
+
+	QTranslator langTranslator;
+	langTranslator.load(locale, binaryName, "-", ":/translations/");
+	application.installTranslator(&langTranslator);
+
 	return application.exec();
 }

src/platform/qt/ts.cmake

@@ -1,5 +1,8 @@
+file(GLOB TRANSLATION_FILES "${QM_BASE}/*.qm")
 file(WRITE ${TRANSLATION_QRC} "<RCC>\n\t<qresource prefix=\"/translations/\">\n")
+message(STATUS ${TRANSLATION_FILES})
 foreach(TS ${TRANSLATION_FILES})
+	message(STATUS ${TS})
 	get_filename_component(TS_BASE "${TS}" NAME)
 	file(APPEND ${TRANSLATION_QRC} "\t\t<file>${TS_BASE}</file>\n")
 endforeach()