WidgetTerminal.h

00001 /**
00002  * @file       WidgetTerminal.h
00003  * @author     Volodymyr Shymanskyy
00004  * @license    This project is released under the MIT License (MIT)
00005  * @copyright  Copyright (c) 2015 Volodymyr Shymanskyy
00006  * @date       Jan 2015
00007  * @brief
00008  */
00009 
00010 #ifndef WidgetTerminal_h
00011 #define WidgetTerminal_h
00012 
00013 #if !(defined(LINUX) || defined(MBED_LIBRARY_VERSION))
00014     #define BLYNK_USE_PRINT_CLASS
00015 #endif
00016 
00017 #include <Blynk/BlynkWidgetBase.h >
00018 
00019 #ifdef BLYNK_USE_PRINT_CLASS
00020     #if !(defined(SPARK) || defined(PARTICLE) || (PLATFORM_ID==88) || defined(ARDUINO_RedBear_Duo)) // 88 -> RBL Duo
00021         // On Particle this is auto-included
00022         #include <Print.h>
00023     #endif
00024 #endif
00025 
00026 class WidgetTerminal
00027     : public BlynkWidgetBase
00028 #ifdef BLYNK_USE_PRINT_CLASS
00029     , public Print
00030 #endif
00031 {
00032 public:
00033     WidgetTerminal(uint8_t vPin)
00034         : BlynkWidgetBase(vPin)
00035         , mOutQty(0)
00036     {}
00037 
00038     //virtual ~WidgetTerminal() {}
00039 
00040     virtual size_t write(uint8_t byte) {
00041         mOutBuf[mOutQty++] = byte;
00042         if (mOutQty >= sizeof(mOutBuf)) {
00043             flush();
00044         }
00045         return 1;
00046     }
00047 
00048     void flush() {
00049         if (mOutQty) {
00050             Blynk.virtualWriteBinary(mPin, mOutBuf, mOutQty);
00051             mOutQty = 0;
00052         }
00053     }
00054 
00055 #ifdef BLYNK_USE_PRINT_CLASS
00056 
00057     using Print::write;
00058 
00059     size_t write(const void* buff, size_t len) {
00060         return write((char*)buff, len);
00061     }
00062 
00063 #else
00064 
00065     size_t write(const void* buff, size_t len) {
00066         uint8_t* buf = (uint8_t*)buff;
00067         while (len--) {
00068             write(*buf++);
00069         }
00070         return len;
00071     }
00072 
00073     size_t write(const char* str) {
00074         return write(str, strlen(str));
00075     }
00076 
00077 #endif
00078 
00079 private:
00080     uint8_t mOutBuf[64];
00081     uint8_t mOutQty;
00082 };
00083 
00084 #endif