1 files changed, 101 insertions, 0 deletions
diff --git a/src/TranslationManager.cpp b/src/TranslationManager.cpp
new file mode 100644
index 00000000..377ed158
--- /dev/null
+++ b/src/TranslationManager.cpp
@@ -0,0 +1,101 @@
+// Copyright (c) 2014-2019, The Monero Project
+//
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without modification, are
+// permitted provided that the following conditions are met:
+//
+// 1. Redistributions of source code must retain the above copyright notice, this list of
+//    conditions and the following disclaimer.
+//
+// 2. Redistributions in binary form must reproduce the above copyright notice, this list
+//    of conditions and the following disclaimer in the documentation and/or other
+//    materials provided with the distribution.
+//
+// 3. Neither the name of the copyright holder nor the names of its contributors may be
+//    used to endorse or promote products derived from this software without specific
+//    prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
+// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#include "TranslationManager.h"
+
+#include <QApplication>
+#include <QTranslator>
+#include <QDir>
+#include <QDebug>
+#include <QFileInfo>
+
+
+TranslationManager * TranslationManager::m_instance = nullptr;
+
+
+TranslationManager::TranslationManager(QObject *parent) : QObject(parent)
+{
+    m_translator = new QTranslator(this);
+}
+
+bool TranslationManager::setLanguage(const QString &language)
+{
+    qDebug() << __FUNCTION__ << " " << language;
+    // if language is "en", remove translator
+    if (language.toLower() == "en") {
+        qApp->removeTranslator(m_translator);
+        emit languageChanged();
+        return true;
+    }
+
+    QString dir = qApp->applicationDirPath() + "/translations";
+    QString filename = "monero-core_" + language;
+
+    qDebug("%s: loading translation file '%s' from '%s'",
+           __FUNCTION__, qPrintable(filename), qPrintable(dir));
+
+    if (m_translator->load(filename, dir)) {
+        qDebug("%s: translation for language '%s' loaded successfully",
+               __FUNCTION__, qPrintable(language));
+        // TODO: apply locale?
+        qApp->installTranslator(m_translator);
+        emit languageChanged();
+        return true;
+    }
+
+    qDebug("%s: couldn't load translation file '%s' from '%s'",
+           __FUNCTION__, qPrintable(filename), qPrintable(dir));
+    qDebug("%s: loading embedded translation file '%s'",
+           __FUNCTION__, qPrintable(filename));
+
+    if (m_translator->load(filename, ":")) {
+        qDebug("%s: embedded translation for language '%s' loaded successfully",
+               __FUNCTION__, qPrintable(language));
+        qApp->installTranslator(m_translator);
+        emit languageChanged();
+        return true;
+    }
+
+    qCritical("%s: error loading translation for language '%s'",
+              __FUNCTION__, qPrintable(language));
+    return false;
+}
+
+TranslationManager *TranslationManager::instance()
+{
+    if (!m_instance) {
+        m_instance = new TranslationManager();
+    }
+    return m_instance;
+}
+
+QString TranslationManager::emptyString()
+{
+    return "";
+}
+