/*
 * Display.cpp
 *
 * Wrapper class for Adafruit OLED display.
 *
 *  Created on: 28.01.2022
 *      Author: FSmilari
 */

#include "Display.h"

/*****************
 ** Constructors.
 ****************/
Display::Display() {
	ssd1306 = Adafruit_SSD1306(SCREEN_WIDTH, SCREEN_HEIGHT);
}

/******************
 ** Public methods
 *****************/
void Display::init() {
	if (!ssd1306.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS, true, true)) {
		Serial.println(F("SSD1306 allocation failed"));
		for (;;)
			; // Don't proceed, loop forever
	}
}

void Display::display() {
	ssd1306.display();
}

void Display::clearDisplay() {
	ssd1306.clearDisplay();
}

void Display::showBrand() {
	ssd1306.clearDisplay();
	ssd1306.drawBitmap(0, 0, epd_bitmap_SFTools_Logo, 128, 34, SSD1306_WHITE);
	ssd1306.setFont(&titillium_web_semibold12pt7b);
	ssd1306.setTextSize(1);
	ssd1306.setTextColor(SSD1306_WHITE);
	uint16_t w = 0, h = 0;
	calculateWH("Fraestisch N172", w, h);
	ssd1306.setCursor((SCREEN_WIDTH - w) / 2, 63 - (30 - h) / 2);
	ssd1306.println("Fraestisch N172");
	display();
}

void Display::showInitialization() {
	ssd1306.clearDisplay();
	ssd1306.setFont(&titillium_web_semibold12pt7b);
	ssd1306.setTextSize(1);
	ssd1306.setTextColor(SSD1306_WHITE);
	uint16_t w = 0, h = 0;
	calculateWH("Initialisieren", w, h);
	ssd1306.setCursor((SCREEN_WIDTH - w) / 2, 30);
	ssd1306.println("Initialisieren");

	calculateWH(". . . . .", w, h);
	ssd1306.setCursor((SCREEN_WIDTH - w) / 2, 50);
	String s = "";
	for (int i = 0; i < 6; i++) {
		ssd1306.print(s);
		display();
		delay(500);
		if (i < 5) {
			ssd1306.print(s + ". ");
		} else {
			ssd1306.println(s + ".");
		}
	}
}

/********************************
 ** Private methods
 *******************************/
void Display::calculateWH(String units, uint16_t &w, uint16_t &h) {
	int x = 0;
	int y = 0;
	int16_t x1, y1;
	uint16_t w1, h1;

	ssd1306.getTextBounds(units, x, y, &x1, &y1, &w1, &h1);
	w = w1;
	h = h1;
}