novelWriter i18n and portuguese translation

nw/__init__.py

@@ -24,10 +24,13 @@ You should have received a copy of the GNU General Public License
 along with this program. If not, see <https://www.gnu.org/licenses/>.
 """
 
+import os
 import sys
 import getopt
 import logging
+import re
 
+from PyQt5.QtCore import QLibraryInfo, QLocale, QTranslator
 from PyQt5.QtGui import QIcon
 from PyQt5.QtWidgets import QApplication, QErrorMessage
 
@@ -109,6 +112,21 @@ logger = logging.getLogger(__name__)
 
 # Load the main config as a global object
 CONFIG = Config()
+nw_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), "languages")
+qt_path = QLibraryInfo.location(QLibraryInfo.TranslationsPath)
+
+translators = {}
+def load_translation(app, path, prefix, lang, script = None, country = None):
+    filename = "_".join(filter(bool, [prefix,
+                                      lang and lang.lower(),
+                                      script and script.capitalize(),
+                                      country and country.upper()]))
+    if filename not in translators:
+        translator = QTranslator()
+        if translator.load(filename, path):
+            print(filename, path)
+            app.installTranslator(translator)
+            translators[filename] = translator
 
 def main(sysArgs=None):
     """Parses command line, sets up logging, and launches main GUI.
@@ -284,6 +302,19 @@ def main(sysArgs=None):
         # Connect the exception handler before making the main GUI
         sys.excepthook = exceptionHandler
 
+        # Load translations
+        lang, script, country = re.match(
+            r"^([a-z]{2,3})(?:_([a-z]{4}))?(?:_([a-z]{2,3}))?$",
+            QLocale.system().name(), re.IGNORECASE).groups()
+
+        for path, prefix in ((qt_path, "qt"),
+                             (qt_path, "qtbase"),
+                             (nw_path, "nw")):
+            load_translation(nwApp, path, prefix, lang)
+            load_translation(nwApp, path, prefix, lang, script=script)
+            load_translation(nwApp, path, prefix, lang, country=country)
+            load_translation(nwApp, path, prefix, lang, script, country)
+
         # Launch main GUI
         nwGUI = GuiMain()
         if not nwGUI.hasProject: