MqttMonitor/hmi.cpp
2016-07-10 18:38:53 +02:00

79 lines
2.0 KiB
C++

/*
* hmi.cpp
*
* Created on: 02.03.2016
* Author: dehottgw
*/
#include "hmi.h"
#include <Streaming.h>
using namespace HmiNS;
Hmi::Hmi() : m_tft(6, 9, 11, 13, -1, 12), // m_tft(LCD_CS, LCD_CD, LCD_WR, LCD_RD, LCD_RESET),
m_displayIdentifier(0),
m_alarmMessageAvailable(false)
{
for (uint8_t i = 0; i < NUM_OF_MESSAGESLOTS; i++) {
memset(m_messageSlots[i].header, 0, BUFFERLEN_MESSAGESLOT);
memset(m_messageSlots[i].body, 0, BUFFERLEN_MESSAGESLOT);
m_messageSlots[i].timestamp = 0;
m_messageSlots[i].updateRequired = false;
}
}
void Hmi::begin() {
m_tft.begin();
m_tft.setRotation(1);
m_tft.setTextSize(2);
m_tft.fillScreen(BLACK);
}
void Hmi::clear() {
m_tft.fillScreen(BLACK);
}
void Hmi::updateMessage(uint8_t slot, char* header, char* body) {
uint8_t index = slot - 1; // slots start at 1, the index starts at 0
if (index < NUM_OF_MESSAGESLOTS) {
strncpy(m_messageSlots[index].header, header, BUFFERLEN_MESSAGESLOT);
strncpy(m_messageSlots[index].body, body, BUFFERLEN_MESSAGESLOT);
m_messageSlots[index].timestamp = millis();
m_messageSlots[index].updateRequired = true;
}
}
void Hmi::toggleAlarmState() {
m_alarmMessageAvailable = ! m_alarmMessageAvailable;
}
void Hmi::drawMessages() {
for (uint8_t i = 0; i < NUM_OF_MESSAGESLOTS; i++) {
if (m_messageSlots[i].updateRequired) {
m_messageSlots[i].updateRequired = false;
m_tft.setCursor(0, 5+i*22);
m_tft.fillRect(0, 5+i*22, 320, 22, BLACK);
uint8_t l = i + 1;
if (l < 10) { // prefix numbers with only one digit with a leading 0
m_tft << " ";
}
m_tft << l << ": ";
if (strlen(m_messageSlots[i].header) > 0) {
m_tft << m_messageSlots[i].header;
for (uint8_t spaces = 0; spaces < (BUFFERLEN_MESSAGESLOT - strlen(m_messageSlots[i].header)); spaces++) {
m_tft << " ";
}
m_tft << " : " << m_messageSlots[i].body;
m_tft << endl;
} else {
m_tft << endl;
}
}
}
}
void Hmi::exec() {
drawMessages();
}