nextion

lib/ITEADLIB_Arduino_Nextion-master/NexVariable.cpp

@@ -0,0 +1,64 @@
+/**
+ * @file NexVariable.cpp
+ *
+ * The implementation of class NexText. 
+ *
+ * @author  huang xiaoming (email:<xiaoming.huang@itead.cc>)
+ * @date    2016/9/13
+ * @copyright 
+ * Copyright (C) 2014-2015 ITEAD Intelligent Systems Co., Ltd. \n
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+#include "NexVariable.h"
+
+NexVariable::NexVariable(uint8_t pid, uint8_t cid, const char *name)
+    :NexTouch(pid, cid, name)
+{
+}
+
+uint32_t NexVariable::getValue(uint32_t *number)
+{
+    String cmd = String("get ");
+    cmd += getObjName();
+    cmd += ".val";
+    sendCommand(cmd.c_str());
+    return recvRetNumber(number);
+}
+
+bool NexVariable::setValue(uint32_t number)
+{
+    char buf[10] = {0};
+    String cmd;
+    
+    utoa(number, buf, 10);
+    cmd += getObjName();
+    cmd += ".val=";
+    cmd += buf;
+
+    sendCommand(cmd.c_str());
+    return recvRetCommandFinished();
+}
+
+uint32_t NexVariable::getText(char *buffer, uint32_t len)
+{
+    String cmd;
+    cmd += "get ";
+    cmd += getObjName();
+    cmd += ".txt";
+    sendCommand(cmd.c_str());
+    return recvRetString(buffer,len);
+}
+
+bool NexVariable::setText(const char *buffer)
+{
+    String cmd;
+    cmd += getObjName();
+    cmd += ".txt=\"";
+    cmd += buffer;
+    cmd += "\"";
+    sendCommand(cmd.c_str());
+    return recvRetCommandFinished();    
+}