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https://github.com/itead/ITEADLIB_Arduino_Nextion.git
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84 lines
1.9 KiB
C++
84 lines
1.9 KiB
C++
/**
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* @file NexText.cpp
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*
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* API of NexText.
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*
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* @author Wu Pengfei (email:<pengfei.wu@itead.cc>)
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* @date 2015/7/10
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* @copyright
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* Copyright (C) 2014-2015 ITEAD Intelligent Systems Co., Ltd. \n
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include "NexText.h"
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/**
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* Constructor,inherited NexTouch's constructor function.
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*
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*/
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NexText::NexText(NexPid pid, NexCid cid, char *name, NexTouchEventCb pop, void *pop_ptr)
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:NexTouch(pid, cid, name, pop, pop_ptr)
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{
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}
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/**
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* Get the value of text.
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*
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* @param buffer - text value buffer.
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* @param len - the length of text value buffer.
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*
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* @return the the length of text value buffer.
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*/
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uint16_t NexText::getText(char *buffer, uint16_t len)
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{
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String cmd;
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cmd += "get ";
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cmd += getObjName();
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cmd += ".txt";
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sendCommand(cmd.c_str());
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return recvRetString(buffer,len);
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}
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/**
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* Set the value of text.
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*
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* @param buffer - text value buffer.
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*
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* @retval true - success.
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* @retval false - failed.
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*/
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bool NexText::setText(const char *buffer)
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{
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String cmd;
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cmd += getObjName();
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cmd += ".txt=\"";
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cmd += buffer;
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cmd += "\"";
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sendCommand(cmd.c_str());
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return recvRetCommandFinished();
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}
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/**
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* Register text pop callback function.
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*
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* @param pop - the pointer to text pop callback function.
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* @param ptr - the parameter to be transmitted to text pop callback function.
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*/
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void NexText::attachPop(NexTouchEventCb pop, void *ptr)
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{
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NexTouch::attachPop(pop, ptr);
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}
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/**
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* Unload text pop callback function.
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*
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*/
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void NexText::detachPop(void)
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{
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NexTouch::detachPop();
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}
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