From a351c0444cd9607655d933dfccb84e981a69ed44 Mon Sep 17 00:00:00 2001
From: mailchuck <dev@mailchuck.com>
Date: Tue, 15 Dec 2015 04:24:35 +0100
Subject: [PATCH] Add system translations

Items like dialog box buttons were not localised. This loads the default
qt localisation, and also unloads the old localisation on locale change.
Still needs to be adjusted for frozen.

Addresses Bitmessage#737
---
 src/bitmessageqt/__init__.py | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/src/bitmessageqt/__init__.py b/src/bitmessageqt/__init__.py
index b73e9718..cc098593 100644
--- a/src/bitmessageqt/__init__.py
+++ b/src/bitmessageqt/__init__.py
@@ -70,11 +70,27 @@ def _translate(context, text):
     return QtGui.QApplication.translate(context, text)
 
 def change_translation(locale):
-    global qtranslator
-    qtranslator = QtCore.QTranslator()
+    global qmytranslator, qsystranslator
+    try:
+        if not qmytranslator.isEmpty():
+            QtGui.QApplication.removeTranslator(qmytranslator)
+    except:
+        pass
+    try:
+        if not qsystranslator.isEmpty():
+            QtGui.QApplication.removeTranslator(qsystranslator)
+    except:
+        pass
+
+    qmytranslator = QtCore.QTranslator()
     translationpath = os.path.join (shared.codePath(), 'translations', 'bitmessage_' + locale)
-    qtranslator.load(translationpath)
-    QtGui.QApplication.installTranslator(qtranslator)
+    qmytranslator.load(translationpath)
+    QtGui.QApplication.installTranslator(qmytranslator)
+
+    qsystranslator = QtCore.QTranslator()
+    translationpath = os.path.join (str(QtCore.QLibraryInfo.location(QtCore.QLibraryInfo.TranslationsPath)), 'qt_' + locale)
+    qsystranslator.load(translationpath)
+    QtGui.QApplication.installTranslator(qsystranslator)
 
 class MyForm(settingsmixin.SMainWindow):