first commitHEADmaster

1 files changed, 122 insertions, 0 deletions

diff --git a/core/lang.cc b/core/lang.cc
new file mode 100644
index 0000000..b7738cc
--- /dev/null
+++ b/core/lang.cc
@@ -0,0 +1,122 @@
+#include "objects.h"
+#include "inifile.h"
+#include "osutils.h"
+#include "lang.h"
+
+LangStringList language;
+
+/**
+ * Language
+ */
+
+Language::Language(LanguageManager *owner, std::string id, const std::string &file_name)
+	: IObject(), owner_(owner), id_(id), file_name_(file_name)
+{
+	name_ = os::GetLocaleName(id_.c_str());
+}
+
+Language::~Language()
+{
+	if (owner_)
+		owner_->RemoveObject(this);
+}
+
+/**
+ * LanguageManager
+ */
+
+LanguageManager::LanguageManager()
+	: ObjectList<Language>()
+{
+	std::string path = os::GetExecutablePath();
+	std::vector<std::string> lang_files = os::FindFiles(os::CombinePaths(path.c_str(), "langs").c_str(), "*.lng");
+	for (size_t i = 0; i < lang_files.size(); i++) {
+		Add(lang_files[i]);
+	}
+	if (!GetLanguageById(default_language()))
+		InsertObject(0, new Language(this, default_language(), ""));
+}
+
+void LanguageManager::Add(const std::string &file_name)
+{
+	std::string id = os::ChangeFileExt(os::ExtractFileName(file_name.c_str()).c_str(), "");
+
+	Language *lang = new Language(this, id, file_name);
+	AddObject(lang);
+}
+
+void LanguageManager::set_language(const std::string &id)
+{
+	Language *lang = GetLanguageById(id);
+	if (!lang)
+		return;
+
+	if (lang->file_name().empty())
+		language.use_defaults();
+	else
+		language.ReadFromFile(lang->file_name().c_str());
+}
+
+Language *LanguageManager::GetLanguageById(const std::string &id) const
+{
+	for (size_t i = 0; i < count(); i++) {
+		Language *lang = item(i);
+		if (lang->id() == id)
+			return lang;
+	}
+	return NULL;
+}
+
+/**
+ * LangStringList
+ */
+
+std::string replace_escape_chars(const char *str)
+{
+	std::string res;
+	while (*str) {
+		if (*str == '\\' && *(str + 1) == 'n') {
+			res += '\n';
+			str++;
+		} else {
+			res += *str;
+		}
+		str++;
+	}
+	return res;
+}
+
+LangStringList::LangStringList()
+{
+	#include "lang_def.inc"
+	use_defaults();
+}
+
+void LangStringList::use_defaults()
+{
+	for (size_t j = 0; j < lsCNT; j++) {
+		values_[j] = default_values_[j];
+	}
+}
+
+void LangStringList::ReadFromFile(const char *file_name)
+{
+	IniFile ini_file(file_name);
+	ReadFromIni(ini_file);
+}
+
+void LangStringList::ReadFromIni(IIniFile &file)
+{
+#include "lang_info.inc" //key_info.id is unnecessary but informative
+	for (size_t j = 0; j < _countof(key_info); j++) {
+		values_[j] = replace_escape_chars(file.ReadString("Main", key_info[j].name, default_values_[j].c_str()).c_str());
+	}
+}
+
+std::string LangStringList::operator[](LangString id) const
+{
+	assert(id != lsCNT);
+	if (id == lsCNT) 
+		return std::string();
+	return values_[id];
+}
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