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Reworked switching of the language:

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1) Language is
This commit is contained in:
bubnikv 2019-08-28 11:53:53 +02:00
parent cd35fd9b34
commit 9e406e4214
2 changed files with 78 additions and 88 deletions
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157
src/slic3r/GUI/GUI_App.cpp
View file

@ -229,7 +229,11 @@ bool GUI_App::on_init_inner()
init_label_colours();
init_fonts();
load_language();
wxString language = wxEmptyString;
if (app_config->has("translation_language"))
language = app_config->get("translation_language");
// If load_language() fails, the application closes.
load_language(language);
// Suppress the '- default -' presets.
preset_bundle->set_default_suppressed(app_config->get("no_defaults") == "1");
@ -585,7 +589,6 @@ void GUI_App::import_model(wxWindow *parent, wxArrayString& input_files) const
bool GUI_App::switch_language()
{
if (select_language()) {
save_language();
_3DScene::remove_all_canvases();
recreate_GUI();
return true;
@ -597,57 +600,43 @@ bool GUI_App::switch_language()
// select language from the list of installed languages
bool GUI_App::select_language()
{
const auto langs = get_installed_languages();
const std::vector<const wxLanguageInfo*> langs = get_installed_languages();
wxArrayString names;
names.Alloc(langs.size());
int init_selection = -1;
const auto current_language = m_wxLocale ? m_wxLocale->GetLanguage() : wxLocale::GetSystemLanguage();
for (size_t i = 0; i < langs.size(); i++) {
const auto lang = langs[i]->Language;
const bool is_english = lang >= wxLANGUAGE_ENGLISH && lang <= wxLANGUAGE_ENGLISH_ZIMBABWE;
if (lang == current_language || (current_language == wxLANGUAGE_UNKNOWN && is_english)) {
// Some valid language should be selected since the application start up.
assert(m_wxLocale != nullptr);
const auto current_language = m_wxLocale->GetLanguage();
int init_selection = 0;
for (size_t i = 0; i < langs.size(); ++ i) {
if (langs[i]->Language == current_language)
init_selection = i;
}
names.Add(langs[i]->Description);
}
const long index = wxGetSingleChoiceIndex(
_(L("Select the language")),
_(L("Language")), names, init_selection >= 0 ? init_selection : 0);
if (index != -1) {
const wxLanguageInfo *lang = langs[index];
if (lang->Language == current_language) {
// There was no change
return false;
}
m_wxLocale = new wxLocale; // FIXME: leak?
m_wxLocale->Init(lang->Language);
m_wxLocale->AddCatalogLookupPathPrefix(from_u8(localization_dir()));
m_wxLocale->AddCatalog(SLIC3R_APP_KEY);
//FIXME This is a temporary workaround, the correct solution is to switch to "C" locale during file import / export only.
wxSetlocale(LC_NUMERIC, "C");
Preset::update_suffix_modified();
m_imgui->set_language(into_u8(lang->CanonicalName));
return true;
const long index = wxGetSingleChoiceIndex(_(L("Select the language")), _(L("Language")), names, init_selection);
// Try to load a new language.
if (index != -1 && langs[index]->Language != current_language && this->load_language(langs[index]->CanonicalName)) {
// Save language at application config.
app_config->set("translation_language", m_wxLocale->GetCanonicalName().ToUTF8().data());
app_config->save();
return true;
}
return false;
}
// Get the language code before underscore, if there is underscore.
static wxString language_code_short(const wxString &language_code)
{
size_t idx_underscore = language_code.find('_');
return (idx_underscore != wxString::npos) ? language_code.substr(0, idx_underscore) : language_code;
}
// Load gettext translation files and activate them at the start of the application,
// based on the "translation_language" key stored in the application config.
bool GUI_App::load_language()
bool GUI_App::load_language(wxString language)
{
wxString language = wxEmptyString;
if (app_config->has("translation_language"))
language = app_config->get("translation_language");
if (language.IsEmpty()) {
int lang = wxLocale::GetSystemLanguage();
if (lang != wxLANGUAGE_UNKNOWN) {
@ -657,67 +646,74 @@ bool GUI_App::load_language()
}
}
if (language.IsEmpty())
language = "en_US";
const wxLanguageInfo *info = nullptr;
if (! language.IsEmpty()) {
const auto langs = get_installed_languages();
for (const wxLanguageInfo *this_info : langs)
if (this_info->CanonicalName == language) {
info = this_info;
break;
}
for (const wxLanguageInfo *this_info : get_installed_languages()) {
if (this_info->CanonicalName == language) {
// The language matches exactly, including the country suffix. Use it.
info = this_info;
break;
}
if (language_code_short(this_info->CanonicalName) == language_code_short(language))
// Alternatively try to match just the language without the country suffix.
info = this_info;
}
m_wxLocale = new wxLocale;
wxString canonical_name = info->CanonicalName;
if (info == nullptr) {
m_wxLocale->Init(wxLANGUAGE_DEFAULT);
m_imgui->set_language("en");
} else {
m_wxLocale->Init(info->Language);
m_wxLocale->AddCatalogLookupPathPrefix(from_u8(localization_dir()));
m_wxLocale->AddCatalog(SLIC3R_APP_KEY);
m_imgui->set_language(into_u8(info->CanonicalName));
// Fallback for user languages, for which we do not have dictionaries.
canonical_name = "en_EN";
info = wxLocale::GetLanguageInfo(wxLANGUAGE_ENGLISH_US);
}
wxLocale *new_locale = new wxLocale;
if (info == nullptr || ! new_locale->Init(info->Language)) {
// Loading the language dictionary failed.
wxString message = "Switching PrusaSlicer to language " + canonical_name + " failed.";
#if !defined(_WIN32) && !defined(__APPLE__)
// likely some linux system
"\nYou may need to reconfigure the missing locales, likely by running the \"locale-gen\" and \"dpkg-reconfigure locales\" commands.\n";
#endif
delete new_locale;
if (m_wxLocale == nullptr)
message + "\n\nApplication will close.";
wxMessageBox(message, "PrusaSlicer - Switching language failed", wxOK | wxICON_ERROR);
if (m_wxLocale == nullptr)
std::terminate();
else
return false;
}
delete m_wxLocale;
m_wxLocale = new_locale;
m_wxLocale->AddCatalogLookupPathPrefix(from_u8(localization_dir()));
m_wxLocale->AddCatalog(SLIC3R_APP_KEY);
m_imgui->set_language(into_u8(info->CanonicalName));
//FIXME This is a temporary workaround, the correct solution is to switch to "C" locale during file import / export only.
wxSetlocale(LC_NUMERIC, "C");
Preset::update_suffix_modified();
return true;
}
// save language at application config
void GUI_App::save_language()
{
wxString language = wxEmptyString;
if (m_wxLocale)
language = m_wxLocale->GetCanonicalName();
app_config->set("translation_language", language.ToUTF8().data());
app_config->save();
}
// Get a list of installed languages
// Get a list of installed languages (languages for which we have dictionaries).
std::vector<const wxLanguageInfo*> GUI_App::get_installed_languages()
{
std::vector<const wxLanguageInfo*> res;
wxDir dir(from_u8(localization_dir()));
wxString filename;
const wxLanguageInfo * langinfo;
wxString name = wxLocale::GetLanguageName(wxLANGUAGE_DEFAULT);
if (!name.IsEmpty()) {
res.push_back(wxLocale::GetLanguageInfo(wxLANGUAGE_DEFAULT));
}
std::vector<const wxLanguageInfo*> res;
res.emplace_back(wxLocale::FindLanguageInfo("en_EN"));
for (bool cont = dir.GetFirst(&filename, wxEmptyString, wxDIR_DIRS); cont; cont = dir.GetNext(&filename)) {
langinfo = wxLocale::FindLanguageInfo(filename);
if (langinfo != NULL) {
const wxLanguageInfo *langinfo = wxLocale::FindLanguageInfo(filename);
if (langinfo != nullptr) {
auto full_file_name = dir.GetName() + wxFileName::GetPathSeparator() +
filename + wxFileName::GetPathSeparator() + SLIC3R_APP_KEY + wxT(".mo");
if (wxFileExists(full_file_name)) {
if (wxFileExists(full_file_name))
res.push_back(langinfo);
}
}
}
// Remove duplicated "en_EN" and possible others.
sort_remove_duplicates(res);
return res;
}
@ -1001,10 +997,6 @@ int GUI_App::extruders_edited_cnt() const
wxString GUI_App::current_language_code_safe() const
{
// Translate the language code to a code, for which Prusa Research maintains translations.
wxString language_code = this->current_language_code();
size_t idx_underscore = language_code.find(language_code);
if (idx_underscore != wxString::npos)
language_code = language_code.substr(0, idx_underscore);
const std::map<wxString, wxString> mapping {
{ "cs", "cs_CZ", },
{ "sk", "cs_CZ", },
@ -1018,6 +1010,7 @@ wxString GUI_App::current_language_code_safe() const
{ "uk", "uk_UA", },
{ "zh", "zh_CN", },
};
wxString language_code = language_code_short(this->current_language_code());
auto it = mapping.find(language_code);
if (it != mapping.end())
language_code = it->second;

9
src/slic3r/GUI/GUI_App.hpp
View file

@ -132,9 +132,7 @@ public:
void update_ui_from_settings();
bool switch_language();
// Load gettext translation files and activate them at the start of the application,
// based on the "translation_language" key stored in the application config.
bool load_language();
bool load_language(wxString language);
Tab* get_tab(Preset::Type type);
ConfigOptionMode get_mode();
@ -146,9 +144,9 @@ public:
bool checked_tab(Tab* tab);
void load_current_presets();
wxString current_language_code() const { return m_wxLocale != nullptr ? m_wxLocale->GetCanonicalName() : wxString("en_US"); }
wxString current_language_code() const { assert(m_wxLocale != nullptr); return m_wxLocale->GetCanonicalName(); }
// Translate the language code to a code, for which Prusa Research maintains translations. Defaults to "en_US".
wxString current_language_code_safe() const;
wxString current_language_code_safe() const;
virtual bool OnExceptionInMainLoop();
@ -189,7 +187,6 @@ private:
void window_pos_restore(wxTopLevelWindow* window, const std::string &name, bool default_maximized = false);
void window_pos_sanitize(wxTopLevelWindow* window);
bool select_language();
void save_language();
std::vector<const wxLanguageInfo*> get_installed_languages();
#ifdef __WXMSW__
void associate_3mf_files();