move to PIIOTextStream

libs/main/io_devices/piiostream.h

@@ -41,6 +41,8 @@ public:
 	//! \~russian Создает %PIIOBinaryStream для устройства "device"
 	PIIOBinaryStream(PIIODevice * device): dev(device) {}
 
+	void setDevice(PIIODevice * device) {dev = device;}
+
 	bool binaryStreamAppendImp(const void * d, size_t s) {
 		if (!dev) return false;
 		return dev->write(d, s);
@@ -68,6 +70,11 @@ public:
 	//! \~russian Создает %PIIOTextStream для устройства "device"
 	PIIOTextStream(PIIODevice * device): PITextStream<PIIOBinaryStream>(&bin_stream), bin_stream(device){}
 
+	void setDevice(PIIODevice * device) {
+		bin_stream = PIIOBinaryStream(device);
+		setStream(&bin_stream);
+	}
+
 private:
 	PIIOBinaryStream bin_stream;