add PIString::lineNumber() method

add ""_tr literal to translate string by PITranslator
add pip_tr util, now useless, only can generate *.ts
add qt_support internal lib, now only works with *.ts file
pip_vtt migrate to qt_support

libs/main/application/pitranslator.cpp

@@ -66,6 +66,11 @@ void PITranslator::loadConfig(const PIString & content) {
 		for (const auto & s: cn.children())
 			c->add(s.name(), s.value().toString());
 	}
+	auto c = s->createContextInternal("");
+	for (const auto & s: lang.children()) {
+		if (s.hasChildren()) continue;
+		c->add(s.name(), s.value().toString());
+	}
 }
 
 

libs/main/application/pitranslator.h

@@ -26,9 +26,10 @@
 #ifndef pitranslator_H
 #define pitranslator_H
 
-#include "pifile.h"
-#include "piiostream.h"
-#include "pithread.h"
+#include "pistring.h"
+
+
+#define piTr PITranslator::tr
 
 //! \ingroup Application
 //! \~\brief
@@ -37,7 +38,7 @@
 class PIP_EXPORT PITranslator {
 public:
 	static PIString tr(const PIString & in, const PIString & context = {});
-	static PIString tr(const char * in, const PIString & context = {}) { return tr(PIString(in), context); }
+	static PIString tr(const char * in, const PIString & context = {}) { return tr(PIString::fromUTF8(in), context); }
 
 	static void clear();
 	static void loadLang(const PIString & short_lang);
@@ -61,4 +62,11 @@ private:
 	PIMap<uint, Context *> contexts;
 };
 
+//! \~\brief
+//! \~english PIString from UTF-8
+//! \~russian PIString из UTF-8
+inline PIString operator""_tr(const char * v, size_t sz) {
+	return PITranslator::tr(PIString::fromUTF8(v, sz));
+}
+
 #endif