Implement setting language with the gui

l10n/CMakeLists.txt

@@ -14,10 +14,18 @@ set(LANGUAGES
 set(SRC_DIR ${CMAKE_SOURCE_DIR}/src)
 file(GLOB_RECURSE SOURCE_FILES ${SRC_DIR}/*.h ${SRC_DIR}/*.cpp ${SRC_DIR}/*.mm)
 
+set(SYSTEM_LANG_KEY "System")
+set(SUPPORTED_LANGUAGES "{\"${SYSTEM_LANG_KEY}\", \"${SYSTEM_LANG_KEY}\"},")
 foreach(LANGUAGE ${LANGUAGES})
   set(TS_FILES ${TS_FILES} gittyup_${LANGUAGE}.ts)
+  set(SUPPORTED_LANGUAGES
+      "${SUPPORTED_LANGUAGES} {\"${LANGUAGE}\", \"${LANGUAGE}\"},")
 endforeach()
 
+set(LANGUAGE_SOURCE_FILE "${CMAKE_CURRENT_BINARY_DIR}/languages.cpp")
+configure_file("${CMAKE_CURRENT_SOURCE_DIR}/languages.cpp.inc"
+               ${LANGUAGE_SOURCE_FILE} @ONLY)
+
 if(UPDATE_TRANSLATIONS)
   # FIXME: Clean removes the .ts files.
   qt5_create_translation(QM_FILES ${SOURCE_FILES} ${TS_FILES})
@@ -28,6 +36,10 @@ endif()
 add_custom_target(translations DEPENDS ${QM_FILES})
 add_dependencies(gittyup translations)
 
+add_library(translation ${LANGUAGE_SOURCE_FILE})
+target_include_directories(translation PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}")
+target_link_libraries(translation Qt5::Core)
+
 # install language files
 
 foreach(LANGUAGE ${LANGUAGES})

l10n/languages.cpp.inc

@@ -0,0 +1,9 @@
+#include "languages.h"
+
+#include <QList>
+#include <QString>
+
+namespace Languages {
+  const QString system = QStringLiteral("@SYSTEM_LANG_KEY@");
+  const QMap<const char*, const char*> languages = { @SUPPORTED_LANGUAGES@ };
+}

l10n/languages.h

@@ -0,0 +1,11 @@
+#ifndef LANGUAGES_H
+#define LANGUAGES_H
+
+#include <QMap>
+
+namespace Languages {
+  extern const QString system;
+  extern const QMap<const char*, const char*> languages;
+}
+
+#endif // LANGUAGES_H

src/app/Application.cpp

@@ -16,6 +16,7 @@
 #include "ui/RepoView.h"
 #include "ui/TabWidget.h"
 #include "update/Updater.h"
+#include "languages.h"
 #include "util/Debug.h"
 #include <QCloseEvent>
 #include <QCommandLineParser>
@@ -172,6 +173,12 @@ Application::Application(int &argc, char **argv, bool haltOnParseError)
             .toBool()) &&
       (!parser.isSet("no-translation"))) {
     // Load translation files.
+
+    const auto &language =
+        Settings::instance()->value(Setting::Id::Language).toString();
+    if (language != Languages::system)
+      QLocale::setDefault(QLocale(language));
+
     QLocale locale;
     QDir l10n = Settings::l10nDir();
     QString name = QString(GITTYUP_NAME).toLower();

src/app/CMakeLists.txt

@@ -67,7 +67,14 @@ target_compile_definitions(
   PRIVATE QT_TRANSLATIONS_DIR="${QT_TRANSLATIONS_DIR}"
           BUILD_DESCRIPTION="${BUILD_DESCRIPTION}")
 
-target_link_libraries(app conf git ui update Qt5::Widgets)
+target_link_libraries(
+  app
+  translation
+  conf
+  git
+  ui
+  update
+  Qt5::Widgets)
 
 set_target_properties(app PROPERTIES AUTOMOC ON)
 

src/conf/CMakeLists.txt

@@ -1,7 +1,7 @@
 add_library(conf ConfFile.cpp Settings.cpp Setting.cpp RecentRepositories.cpp
                  RecentRepository.cpp)
 
-target_link_libraries(conf lua Qt5::Core util)
+target_link_libraries(conf lua Qt5::Core util translation)
 
 # SRC_ definitions point to the source directly
 target_compile_definitions(
@@ -9,7 +9,7 @@ target_compile_definitions(
   PRIVATE CONF_DIR="${RESOURCES_DIR}"
           SRC_CONF_DIR="${CMAKE_SOURCE_DIR}/conf"
           L10N_DIR="${L10N_INSTALL_DIR}"
-          SRC_L10N_DIR="${CMAKE_SOURCE_DIR}/l10n"
+          SRC_L10N_DIR="${CMAKE_BINARY_DIR}/l10n"
           SCINTILLUA_LEXERS_DIR="${SCINTILLUA_LEXERS_DIR}"
           SRC_SCINTILLUA_LEXERS_DIR="${SRC_SCINTILLUA_LEXERS_DIR}")
 set_target_properties(conf PROPERTIES AUTOMOC ON)

src/conf/Setting.cpp

@@ -26,6 +26,7 @@ void Setting::initialize(QMap<Id, QString> &keys) {
   keys[Id::TerminalName] = "terminal/name";
   keys[Id::TerminalPath] = "terminal/path";
   keys[Id::DontTranslate] = "translation/disable";
+  keys[Id::Language] = "translation/language";
   keys[Id::AllowSingleInstanceOnly] = "singleInstance";
   keys[Id::CheckForUpdatesAutomatically] = "update/check";
   keys[Id::InstallUpdatesAutomatically] = "update/download";

src/conf/Setting.h

@@ -63,6 +63,7 @@ public:
     ShowCommitsId,
     ShowChangedFilesAsList,
     ShowChangedFilesInSingleView,
+    Language,
   };
   Q_ENUM(Id)
 

src/conf/Settings.cpp

@@ -11,6 +11,7 @@
 #include "ConfFile.h"
 #include "Debug.h"
 #include "qtsupport.h"
+#include "languages.h"
 #include <QCoreApplication>
 #include <QDir>
 #include <QSettings>
@@ -26,6 +27,8 @@ namespace {
 
 const QString kIgnoreWsKey("diff/whitespace/ignore");
 const QString kLastPathKey("lastpath");
+const QString kTranslation("translation");
+const QString kTranslationLanguage("language");
 
 // Look up variant at key relative to root.
 QVariant lookup(const QVariantMap &root, const QString &key) {
@@ -51,6 +54,10 @@ Settings::Settings(QObject *parent) : QObject(parent) {
   foreach (const QFileInfo &file, confDir().entryInfoList(QStringList("*.lua")))
     mDefaults[file.baseName()] = ConfFile(file.absoluteFilePath()).parse();
   mDefaults[kLastPathKey] = QDir::homePath();
+  QVariantMap map;
+  map[kTranslationLanguage] = QVariant(Languages::system);
+  mDefaults[kTranslation] = map;
+  mDefaults[kTranslation].toMap()[kTranslationLanguage] = Languages::system;
   mCurrentMap = mDefaults;
 }
 

src/dialogs/SettingsDialog.cpp

@@ -25,6 +25,7 @@
 #include "ui/MainWindow.h"
 #include "ui/MenuBar.h"
 #include "ui/RepoView.h"
+#include "languages.h"
 #include "update/Updater.h"
 #include <QAction>
 #include <QApplication>
@@ -105,6 +106,13 @@ public:
         new QCheckBox(tr("Update submodules after pull and clone"), this);
     mAutoPrune = new QCheckBox(tr("Prune when fetching"), this);
     mNoTranslation = new QCheckBox(tr("No translation"), this);
+    mLanguages = new QComboBox(this);
+
+    QMapIterator<const char *, const char *> i(Languages::languages);
+    while (i.hasNext()) {
+      i.next();
+      mLanguages->addItem(tr(i.key()), QVariant(i.value()));
+    }
 
     mStoreCredentials =
         new QCheckBox(tr("Store credentials in secure storage"), this);
@@ -123,6 +131,7 @@ public:
     form->addRow(QString(), mPullUpdate);
     form->addRow(QString(), mAutoPrune);
     form->addRow(tr("Language:"), mNoTranslation);
+    form->addRow(tr("Language:"), mLanguages);
     form->addRow(tr("Credentials:"), mStoreCredentials);
     form->addRow(tr("Credential store type:"), mAvailableStores);
     form->addRow(QString(), privacy);
@@ -184,6 +193,12 @@ public:
       Settings::instance()->setValue(Setting::Id::DontTranslate, checked);
     });
 
+    connect(mLanguages, QOverload<int>::of(&QComboBox::currentIndexChanged),
+            [this]() {
+              const auto &language = mLanguages->currentData().toString();
+              Settings::instance()->setValue(Setting::Id::Language, language);
+            });
+
     connect(mStoreCredentials, &QCheckBox::toggled, [this](bool checked) {
       git::Config config = git::Config::global();
       mAvailableStores->setEnabled(checked);
@@ -234,6 +249,14 @@ public:
     mNoTranslation->setChecked(
         settings->value(Setting::Id::DontTranslate).toBool());
 
+    const auto &l = settings->value(Setting::Id::Language).toString();
+    for (int i = 0; i < mLanguages->count(); i++) {
+      if (mLanguages->itemData(i).toString() == l) {
+        mLanguages->setCurrentIndex(i);
+        break;
+      }
+    }
+
     auto currentHelper = config.value<QString>("credential.helper");
     auto checked = CredentialHelper::isHelperValid(currentHelper);
     mStoreCredentials->setChecked(checked);
@@ -259,6 +282,7 @@ private:
   QCheckBox *mPullUpdate;
   QCheckBox *mAutoPrune;
   QCheckBox *mNoTranslation;
+  QComboBox *mLanguages;
   QCheckBox *mStoreCredentials;
   QComboBox *mAvailableStores;
   QCheckBox *mSingleInstance;