add PITranslator

begin localization "ru"

libs/main/application/pitranslator.cpp

@@ -0,0 +1,101 @@
+/*
+    PIP - Platform Independent Primitives
+	Translation support
+    Ivan Pelipenko peri4ko@yandex.ru
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "pitranslator.h"
+
+#include "pivaluetree_conversions.h"
+#include "tr/pip_all.h"
+
+
+//! \class PITranslator pitranslator.h
+//! \details
+//! \~english \section PITranslator_sec0 Synopsis
+//! \~russian \section PITranslator_sec0 Краткий обзор
+//! \~english
+//!
+//! \~russian
+//!
+
+
+PIString PITranslator::tr(const PIString & in, const PIString & context) {
+	auto s = instance();
+	auto c = s->contexts.value(context.hash());
+	if (!c) return in;
+	return c->strings.value(in.hash(), in);
+}
+
+
+void PITranslator::clear() {
+	instance()->clearInternal();
+}
+
+
+void PITranslator::loadLang(const PIString & short_lang) {
+	auto s    = instance();
+	auto vt   = PIValueTreeConversions::fromText(getBuiltinConfig());
+	auto lang = vt.child(short_lang.toLowerCase().trim());
+	for (const auto & cn: lang.children()) {
+		auto c = s->createContextInternal(cn.name());
+		for (const auto & s: cn.children())
+			c->add(s.name(), s.value().toString());
+	}
+}
+
+
+void PITranslator::loadConfig(const PIString & content) {
+	auto s    = instance();
+	auto lang = PIValueTreeConversions::fromText(content);
+	for (const auto & cn: lang.children()) {
+		auto c = s->createContextInternal(cn.name());
+		for (const auto & s: cn.children())
+			c->add(s.name(), s.value().toString());
+	}
+}
+
+
+PITranslator::PITranslator() {}
+
+
+PITranslator::~PITranslator() {
+	clearInternal();
+}
+
+
+PITranslator * PITranslator::instance() {
+	static PITranslator ret;
+	return &ret;
+}
+
+
+void PITranslator::clearInternal() {
+	piDeleteAll(contexts.values());
+	contexts.clear();
+}
+
+
+PITranslator::Context * PITranslator::createContextInternal(const PIString & context) {
+	auto & ret(contexts[context.hash()]);
+	if (!ret) ret = new Context();
+	return ret;
+}
+
+
+void PITranslator::Context::add(const PIString & in, const PIString & out) {
+	strings[in.hash()] = out;
+}