Initial commit of Translation

- vehicle function pane is now updated and using translation
- two languages (en and de) are added as initial internationalization

Task-number: QTAUTO-189
Change-Id: I4710fdefe7c0d66d820f14d24fcbf0e8add060fd
Reviewed-by: Dominik Holland <dominik.holland@pelagicore.com>

13 files changed, 395 insertions, 13 deletions

diff --git a/apps/com.pelagicore.movies/MovieTracks.qml b/apps/com.pelagicore.movies/MovieTracks.qml
index befa242..aff59a9 100644
--- a/apps/com.pelagicore.movies/MovieTracks.qml
+++ b/apps/com.pelagicore.movies/MovieTracks.qml
@@ -108,7 +108,8 @@ UIScreen {
                     }
                     Button {
                         text: 'PLAY NOW'
-                        Layout.alignment: Qt.AlignRight
+                        Layout.preferredWidth: Style.hspan(4)
+                        Layout.alignment: Qt.AlignLeft
                         onClicked: root.playMovie()
                     }
                 }
diff --git a/imports/assets/translations/de_DE.ts b/imports/assets/translations/de_DE.ts
new file mode 100644
index 0000000..0da61b0
--- /dev/null
+++ b/imports/assets/translations/de_DE.ts
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="de_DE">
+<context>
+    <name></name>
+    <message id="hill_descent_control_id">
+        <source>Hill Descent Control</source>
+        <translation>Bergabfahrhilfe</translation>
+    </message>
+    <message id="intelligent_speed_adaptation_id">
+        <source>Intelligent Speed Adaptation</source>
+        <translation>Intelligente Geschwindigkeitsanpassung</translation>
+    </message>
+    <message id="automatic_beam_switching_id">
+        <source>Automatic Beam Switching</source>
+        <translation>Automatische Fernlichtschaltung</translation>
+    </message>
+    <message id="collision_avoidance_id">
+        <source>Collision Avoidance</source>
+        <translation>Kollisionsvermeidung</translation>
+    </message>
+    <message id="lane_assist_id">
+        <source>Lane Assist</source>
+        <translation>Spur-Assistent</translation>
+    </message>
+    <message id="traffic_jam_assist_id">
+        <source>Traffic Jam Assist</source>
+        <translation>Stau-Assistent</translation>
+    </message>
+    <message id="driver_drowsiness_alert_id">
+        <source>Driver Drowsiness Alert</source>
+        <translation>Fahrermüdigkeitserkennung</translation>
+    </message>
+    <message id="park_assist_id">
+        <source>Park Assist</source>
+        <translation>Park Assistenzsysteme</translation>
+    </message>
+    <message id="language_id">
+        <source>Language</source>
+        <translation>Sprache</translation>
+    </message>
+</context>
+</TS>
diff --git a/imports/assets/translations/en_GB.ts b/imports/assets/translations/en_GB.ts
new file mode 100644
index 0000000..3a44fbd
--- /dev/null
+++ b/imports/assets/translations/en_GB.ts
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE TS>
+<TS version="2.1" language="en_GB">
+<context>
+    <name></name>
+    <message id="hill_descent_control_id">
+        <source>Hill Descent Control</source>
+        <translation>Hill Descent Control</translation>
+    </message>
+    <message id="intelligent_speed_adaptation_id">
+        <source>Intelligent Speed Adaptation</source>
+        <translation>Intelligent Speed Adaptation</translation>
+    </message>
+    <message id="automatic_beam_switching_id">
+        <source>Automatic Beam Switching</source>
+        <translation>Automatic Beam Switching</translation>
+    </message>
+    <message id="collision_avoidance_id">
+        <source>Automatic Beam Switching</source>
+        <translation>Automatic Beam Switching</translation>
+    </message>
+    <message id="lane_assist_id">
+        <source>Lane Assist</source>
+        <translation>Lane Assist</translation>
+    </message>
+    <message id="traffic_jam_assist_id">
+        <source>Traffic Jam Assist</source>
+        <translation>Traffic Jam Assist</translation>
+    </message>
+    <message id="driver_drowsiness_alert_id">
+        <source>Driver Drowsiness Alert</source>
+        <translation>Driver Drowsiness Alert</translation>
+    </message>
+    <message id="park_assist_id">
+        <source>Park Assist</source>
+        <translation>Park Assist</translation>
+    </message>
+    <message id="language_id">
+        <source>Language</source>
+        <translation>Language</translation>
+    </message>
+</context>
+</TS>
diff --git a/imports/shared/utils/Style.qml b/imports/shared/utils/Style.qml
index 1db9ecf..403ed18 100644
--- a/imports/shared/utils/Style.qml
+++ b/imports/shared/utils/Style.qml
@@ -33,6 +33,7 @@ pragma Singleton
 import QtQuick 2.6
 
 import com.pelagicore.styles.neptune 1.0
+import com.pelagicore.translation 1.0
 
 QtObject {
     id: root
@@ -107,6 +108,15 @@ QtObject {
     property url gfxUrl: Qt.resolvedUrl(root.assetPath + 'gfx/')
     property url fonts: Qt.resolvedUrl(root.assetPath + 'fonts/')
 
+    property alias languageLocale: translation.languageLocale
+    property QtObject translation: Translation {
+        id: translation
+        Component.onCompleted: {
+            setPath(root.assetPath + "translations/");
+            languageLocale = "en_GB";
+        }
+    }
+
     function symbol(name, size, active) {
         size = size || defaultSymbolSize;
         return symbolUrl + (active ? '/active/' : '/') + name + '@' + size + '.png';
diff --git a/imports/system/models/settings/SettingsModel.qml b/imports/system/models/settings/SettingsModel.qml
index abf7617..a543287 100644
--- a/imports/system/models/settings/SettingsModel.qml
+++ b/imports/system/models/settings/SettingsModel.qml
@@ -39,6 +39,12 @@ QtObject {
     property string unitSystem: "metric"  // "metric" or "imp_us"
     readonly property bool metric: unitSystem === "metric"
 
+    readonly property ListModel languages: ListModel {
+        ListElement { name: "en_GB" }
+        ListElement { name: "de_DE" }
+    }
+    property int currentLanguageIndex: 0
+
     readonly property ListModel windowTransitions: ListModel {
         ListElement { name: "Zoom" }
         ListElement { name: "Tumble" }
@@ -88,42 +94,42 @@ QtObject {
 
     property ListModel functions: ListModel {
         ListElement {
-            description: "Hill descent control"
+            description: "hill_descent_control_id"
             icon: "hill_descent_control"
             active: true
         }
         ListElement {
-            description: "Intelligent speed adaptation"
+            description: "intelligent_speed_adaptation_id"
             icon: "intelligent_speed_adaptation"
             active: false
         }
         ListElement {
-            description: "Automatic beam switching"
+            description: "automatic_beam_switching_id"
             icon: "automatic_beam_switching"
             active: true
         }
         ListElement {
-            description: "Collision avoidance"
+            description: "collision_avoidance_id"
             icon: "collision_avoidance"
             active: false
         }
         ListElement {
-            description: "Lane assist"
+            description: "lane_assist_id"
             icon: "lane_keeping_assist"
             active: false
         }
         ListElement {
-            description: "Traffic jam assist"
+            description: "traffic_jam_assist_id"
             icon: "traffic_jam_assist"
             active: false
         }
         ListElement {
-            description: "Driver drowsiness alert"
+            description: "driver_drowsiness_alert_id"
             icon: "driver_drownsyness_alert"
             active: true
         }
         ListElement {
-            description: "Park assist"
+            description: "park_assist_id"
             icon: "park_assist"
             active: false
         }
diff --git a/plugins/plugins.pro b/plugins/plugins.pro
index 06072b0..18aeb10 100644
--- a/plugins/plugins.pro
+++ b/plugins/plugins.pro
@@ -3,4 +3,5 @@ TEMPLATE = subdirs
 SUBDIRS = datasource \
           screenmanager \
           comtqci18ndemo \
-          styles
+          styles \
+          translation
diff --git a/plugins/translation/plugin.cpp b/plugins/translation/plugin.cpp
new file mode 100644
index 0000000..3952bc8
--- /dev/null
+++ b/plugins/translation/plugin.cpp
@@ -0,0 +1,50 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Neptune IVI UI.
+**
+** $QT_BEGIN_LICENSE:GPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite licenses may use
+** this file in accordance with the commercial license agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and The Qt Company.  For
+** licensing terms and conditions see https://www.qt.io/terms-conditions.
+** For further information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: GPL-3.0
+**
+****************************************************************************/
+
+#include <QtQml/qqmlextensionplugin.h>
+#include <qqml.h>
+#include "translation.h"
+
+class HoundPlugin : public QQmlExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface/1.0")
+public:
+    virtual void registerTypes(const char *uri) override
+    {
+        Q_ASSERT(QLatin1String(uri) == QLatin1String("com.pelagicore.translation"));
+        Q_UNUSED(uri);
+
+        qmlRegisterType<Translation>(uri, 1, 0, "Translation");
+    }
+};
+
+#include "plugin.moc"
diff --git a/plugins/translation/qmldir b/plugins/translation/qmldir
new file mode 100644
index 0000000..3410962
--- /dev/null
+++ b/plugins/translation/qmldir
@@ -0,0 +1,2 @@
+module com.pelagicore.translation
+plugin translationplugin
diff --git a/plugins/translation/translation.cpp b/plugins/translation/translation.cpp
new file mode 100644
index 0000000..2b79fd4
--- /dev/null
+++ b/plugins/translation/translation.cpp
@@ -0,0 +1,82 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Neptune IVI UI.
+**
+** $QT_BEGIN_LICENSE:GPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite licenses may use
+** this file in accordance with the commercial license agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and The Qt Company.  For
+** licensing terms and conditions see https://www.qt.io/terms-conditions.
+** For further information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: GPL-3.0
+**
+****************************************************************************/
+
+#include "translation.h"
+#include <QGuiApplication>
+#include <QtQml>
+#include <QScreen>
+#include <QDebug>
+
+Translation::Translation(QObject *parent)
+    : QObject(parent)
+{
+}
+
+void Translation::setPath(const QUrl &languageFilePath)
+{
+    m_languageFilePath = languageFilePath.toLocalFile();
+}
+
+void Translation::setLanguageLocale(const QString &languageLocale)
+{
+    if (m_languageLocale != languageLocale) {
+        if ( loadTranslationFile(languageLocale) ) {
+            m_languageLocale = languageLocale;
+
+            emit languageLocaleChanged();
+            emit languageChanged();
+        }
+    }
+}
+
+QString Translation::languageLocale() const
+{
+    return m_languageLocale;
+}
+
+bool Translation::loadTranslationFile(const QString &langLocale)
+{
+    QString fileToLoad(m_languageFilePath);
+    fileToLoad += langLocale + ".qm";
+
+    if ( m_translator.load(fileToLoad) ) {
+        qApp->installTranslator(&m_translator);
+
+        QEvent ev(QEvent::LanguageChange);
+        qApp->sendEvent(QQmlEngine::contextForObject(this)->engine(), &ev);
+
+        return true;
+    }
+
+    qWarning() << "Failed to load translation file";
+
+    return false;
+}
diff --git a/plugins/translation/translation.h b/plugins/translation/translation.h
new file mode 100644
index 0000000..c2e411b
--- /dev/null
+++ b/plugins/translation/translation.h
@@ -0,0 +1,66 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 Pelagicore AG
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Neptune IVI UI.
+**
+** $QT_BEGIN_LICENSE:GPL-QTAS$
+** Commercial License Usage
+** Licensees holding valid commercial Qt Automotive Suite licenses may use
+** this file in accordance with the commercial license agreement provided
+** with the Software or, alternatively, in accordance with the terms
+** contained in a written agreement between you and The Qt Company.  For
+** licensing terms and conditions see https://www.qt.io/terms-conditions.
+** For further information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 or (at your option) any later version
+** approved by the KDE Free Qt Foundation. The licenses are as published by
+** the Free Software Foundation and appearing in the file LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+** SPDX-License-Identifier: GPL-3.0
+**
+****************************************************************************/
+
+#ifndef TRANSLATION_H
+#define TRANSLATION_H
+
+#include <QtCore/QObject>
+#include <QTranslator>
+#include <QUrl>
+
+class Translation : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QString languageLocale READ languageLocale WRITE setLanguageLocale NOTIFY languageLocaleChanged)
+
+public:
+    explicit Translation(QObject *parent = nullptr);
+
+    Q_INVOKABLE void setPath(const QUrl &languageFilePath);
+
+    void setLanguageLocale(const QString &languageLocale);
+    QString languageLocale() const;
+
+signals:
+    void languageLocaleChanged();
+    void languageChanged();
+
+protected:
+    bool loadTranslationFile(const QString &langLocale);
+
+    QString m_languageLocale;
+    QString m_languageFilePath;
+
+    QTranslator m_translator;
+};
+
+#endif // TRANSLATION_H
diff --git a/plugins/translation/translation.pro b/plugins/translation/translation.pro
new file mode 100644
index 0000000..b291aac
--- /dev/null
+++ b/plugins/translation/translation.pro
@@ -0,0 +1,55 @@
+TEMPLATE = lib
+TARGET  = translationplugin
+QT += qml quick
+CONFIG += qt plugin c++11
+
+uri = com.pelagicore.translation
+load(qmlplugin)
+
+SOURCES += \
+    plugin.cpp \
+    translation.cpp \
+
+HEADERS += \
+    translation.h \
+
+# var, prepend, append
+defineReplace(prependAll) {
+    for(a,$$1):result += $$2$${a}$$3
+    return($$result)
+}
+
+assetsPath = $$PWD/../../imports/assets
+qmlSysUiPath = $$PWD/../../sysui
+# See qml files to scan while running lupdate/lrelease
+lupdate_only {
+    SOURCES += $$files($$shell_quote($$shell_path($${qmlSysUiPath}/))*.qml, true)
+}
+
+target.path = $$installPath
+
+supportedLocales = \
+    de_DE \
+    en_GB
+
+TRANSLATIONS = $$prependAll(supportedLocales, $$assetsPath/translations/, .ts)
+
+qtPrepareTool(LUPDATE, lupdate)
+qtPrepareTool(LRELEASE, lrelease)
+
+ts.commands = $$LUPDATE $$shell_quote($$_PRO_FILE_)
+QMAKE_EXTRA_TARGETS += ts
+
+qm.input = TRANSLATIONS
+qm.output = $$shadowed($$assetsPath/translations)/${QMAKE_FILE_BASE}.qm
+qm.variable_out = PRE_TARGETDEPS
+qm.commands = $${LRELEASE} -idbased ${QMAKE_FILE_IN} -qm ${QMAKE_FILE_OUT}
+qm.name = LRELEASE ${QMAKE_FILE_IN}
+qm.CONFIG += no_link
+QMAKE_EXTRA_COMPILERS += qm
+
+qmfiles.files = $$prependAll(supportedLocales, $$shadowed($$assetsPath/translations)/, .qm)
+qmfiles.path = $$INSTALL_PREFIX/neptune/imports/assets/translations
+qmfiles.CONFIG += no_check_exist
+
+INSTALLS += qmfiles
diff --git a/sysui/display/About.qml b/sysui/display/About.qml
index 81c7769..6afd4c8 100644
--- a/sysui/display/About.qml
+++ b/sysui/display/About.qml
@@ -161,6 +161,28 @@ Control {
             }
         }
 
+        RowLayout {
+            Layout.alignment: Qt.AlignCenter
+            Label { text: qsTrId("language_id") + ": " }
+            ComboBox {
+                id: languageComboBox
+                width: Style.hspan(5)
+                implicitWidth: width
+                model: SettingsModel.languages
+                textRole: "name"
+                onCurrentIndexChanged: {
+                    SettingsModel.currentLanguageIndex = currentIndex;
+                }
+
+                Connections {
+                    target: SettingsModel
+                    onCurrentLanguageIndexChanged: {
+                        Style.languageLocale = SettingsModel.languages.get(languageComboBox.currentIndex).name
+                    }
+                }
+            }
+        }
+
     }
 
     Symbol {
diff --git a/sysui/display/FunctionsPage.qml b/sysui/display/FunctionsPage.qml
index 94aa511..38e7e57 100644
--- a/sysui/display/FunctionsPage.qml
+++ b/sysui/display/FunctionsPage.qml
@@ -73,6 +73,7 @@ UIPage {
             width: GridView.view.cellWidth
             height: GridView.view.cellHeight
             spacing: 0
+
             Rectangle {
                 id: highlightBar
                 width: 5
@@ -80,11 +81,11 @@ UIPage {
                 color: model.active ? NeptuneStyle.accentColor : NeptuneStyle.darkColor
             }
             Button {
-                checked: model.active
-                text: model.description
-                checkable: true
                 width: parent.width - highlightBar.width
                 height: parent.height
+                text: qsTrId(model.description)
+                checked: model.active
+                checkable: true
 
                 onClicked: {
                     model.active = !model.active