CO2_Gadget_OLED.h

#ifndef CO2_Gadget_OLED_h
#define CO2_Gadget_OLED_h

#ifdef SUPPORT_OLED

// clang-format off
/*****************************************************************************************************/
/*********                                                                                   *********/
/*********                          SETUP OLED DISPLAY FUNCTIONALITY                         *********/
/*********                                                                                   *********/
/*****************************************************************************************************/
// clang-format on
// #include <U8x8lib.h>
#include <U8g2lib.h>

#include "bootlogo.h"
#include "icons.h"
U8G2_SH1106_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/U8X8_PIN_NONE);  // Frame Buffer: clearBuffer/sendBuffer. More RAM usage, Faster
// U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);  // Frame Buffer: u8g2.clearBuffer, u8g2.sendBuffer. Less RAM usage, Slower

char oled_msg[20];
int displayWidth = 128;
int displayHeight = 64;
// #define MENUFONT u8g2_font_6x10_mf
#define MENUFONT u8g2_font_5x8_mf

void setDisplayReverse(bool reverse) {
    if (reverse) {
        Serial.printf("-->[OLED] Set display reversed\n");
        u8g2.setDisplayRotation(U8G2_R2);
    } else {
        Serial.printf("-->[OLED] Set display normal\n");
        u8g2.setDisplayRotation(U8G2_R0);
    }
    shouldRedrawDisplay = true;
}

void setDisplayBrightness(uint16_t newBrightness) {
  Serial.printf("-->[OLED] Setting display brightness value at %d\n", newBrightness);
  u8g2.setContrast(newBrightness);
  actualDisplayBrightness = newBrightness;
}

// https://github.com/olikraus/u8g2/wiki/u8g2reference#setpowersave
void displaySleep(bool value) {
    // if (value) {
    //     u8g2.setPowerSave(value);
    // } else {
    //     u8g2.setPowerSave(value);
    // }
}

void turnOffDisplay() {
    setDisplayBrightness(0);  // Turn off the display
}

void displaySplashScreen() {
    u8g2.clearDisplay();
    u8g2.firstPage();
    do {
        // u8g2.drawXBMP(30, 0, 59, 20, eMarieteLogo);
        // u8g2.drawXBM(7, 23, 46, 36, CO2Logo);
        // u8g2.drawXBM(60, 32, 61, 23, GadgetLogo);
        u8g2.drawXBM(0, 0, 128, 64, splash);
    } while (u8g2.nextPage());
    u8g2.setFont(MENUFONT);
}

/***************************************************************************************
** Function name:           displayNotification
** Description:             Display a boxed  notification in the display
***************************************************************************************/
// parameters:
//      notificationText = string to display.
//      notificationTypes one of enum notificationTypes notifyNothing, notifyInfo, notifyWarning, notifyError
bool displayNotification(String notificationText, notificationTypes notificationType) {
    uint16_t textColor, boxColor, backgroundColor, boxMarging = 15;
    return true;
}

bool displayNotification(String notificationText, String notificationText2, notificationTypes notificationType) {
    uint16_t textColor, boxColor, backgroundColor, boxMarging = 15;
    return true;
}

void initDisplay(bool fastMode = false) {  // fastMode not used in OLED display. Just for compatibility with TFT and other displays.
    Serial.printf("-->[OLED] Initialized: \t#%s#\n",
                  ((u8g2.begin()) ? "OK" : "Failed"));
    u8g2.firstPage();
    do {
        u8g2.setFont(u8g2_font_ncenB12_tr);
        u8g2.drawStr(0, 15, "  eMariete.com");
        u8g2.drawStr(0, 33, "   CO2 Gadget");
        u8g2.drawStr(0, 51, "  Air  Quality");
    } while (u8g2.nextPage());
    u8g2.setFont(MENUFONT);
    if (displayReverse) {
        u8g2.setDisplayRotation(U8G2_R2);
    } else {
        u8g2.setDisplayRotation(U8G2_R0);
    }
    setDisplayBrightness(DisplayBrightness);
    displaySplashScreen();
    delay(1000);
}

void displayShowValues(bool forceRedraw = false) {
    if ((co2 == 0) || (co2 > 9999)) return;
    if (forceRedraw) {
        thresholdsManager.updatePreviousValues(DISPLAY_SHOW, co2, temp, hum);
    } else {
        if (!thresholdsManager.evaluateThresholds(DISPLAY_SHOW, co2, temp, hum)) return;
    }
    String co2Str = String(co2);
    if (co2Str.length() < 4) {
        co2Str = " " + co2Str;
    }
    u8g2.firstPage();
    do {
        u8g2.setFont(u8g2_font_7Segments_26x42_mn);
        u8g2.setCursor(0, 44);
        u8g2.print(co2Str);
        u8g2.setFont(u8g2_font_5x7_tf);
        u8g2.setCursor(110, 51);
        u8g2.print("ppm");
        if (displayShowTemperature) {
            u8g2.setCursor(1, u8g2.getDisplayHeight());
            u8g2.print("T: ");
            u8g2.print(temp, 1);
            u8g2.print(showFahrenheit ? "F" : "C");
        }
        if (displayShowHumidity) {
            u8g2.setCursor(85, u8g2.getDisplayHeight());
            u8g2.print("HR: ");
            u8g2.print(hum, 0);
            u8g2.print("%");
        }
    } while (u8g2.nextPage());
    u8g2.setFont(MENUFONT);
}

#endif  // SUPPORT_OLED
#endif  // CO2_Gadget_OLED_h