add qt_zh_CN for Chinese translations

appveyor.yml

@@ -50,6 +50,8 @@ after_build:
     - echo %vnote_version% > "distrib\VNote\version.txt"
     - echo %APPVEYOR_REPO_COMMIT% >> "distrib\VNote\version.txt"
     - copy "distrib\VNote\VNote.exe" "distrib\VNote_win_%PLATFORM%.exe"
+    # Delete translations\qt_*.qm
+    - del /F /Q "distrib\VNote\translations\qt_*.qm"
     # Copy OpenSSL DLLs
     - if "%PLATFORM%" EQU "X64" (xcopy "openssl-utils.git\win64\*.dll" "distrib\VNote")
     - if "%PLATFORM%" EQU "x86" (xcopy "openssl-utils.git\win32\*.dll" "distrib\VNote")

src/main.cpp

@@ -169,13 +169,17 @@ int main(int argc, char *argv[])
         app.installTranslator(&qtTranslator3);
     }
 
-    // Load translation for Qt.
+    // Load translation for Qt from resource.
     QTranslator qtTranslator;
-    if (!qtTranslator.load("qt_" + locale, QLibraryInfo::location(QLibraryInfo::TranslationsPath))) {
-        qtTranslator.load("qt_" + locale, "translations");
+    if (qtTranslator.load("qt_" + locale, ":/translations")) {
+        app.installTranslator(&qtTranslator);
     }
 
-    app.installTranslator(&qtTranslator);
+    // Load translation for Qt from env.
+    QTranslator qtTranslatorEnv;
+    if (qtTranslatorEnv.load("qt_" + locale, "translations")) {
+        app.installTranslator(&qtTranslatorEnv);
+    }
 
     // Load translation for vnote.
     QTranslator translator;

src/vnote.qrc

@@ -233,5 +233,6 @@
         <file>translations/widgets_zh_CN.qm</file>
         <file>translations/qdialogbuttonbox_zh_CN.qm</file>
         <file>translations/qwebengine_zh_CN.qm</file>
+        <file>translations/qt_zh_CN.qm</file>
     </qresource>
 </RCC>