#include "display/text.h"

#include <string.h>

static const int CHAR_WIDTH = 6;

static void drawCentered(BROSE9323 &display, const char *text, int y)
{
	int len = strlen(text);
	if (len > TEXT_LINE_CHARS)
		len = TEXT_LINE_CHARS;
	char line[TEXT_LINE_CHARS + 1];
	memcpy(line, text, len);
	line[len] = '\0';

	display.setCursor((display.width() - len * CHAR_WIDTH) / 2, y);
	display.print(line);
}

void drawTextLines(BROSE9323 &display, const char *line1, const char *line2)
{
	display.fillScreen(0);
	display.setTextSize(1);
	display.setTextWrap(false);
	display.setTextColor(1);
	if (line2 == nullptr || line2[0] == '\0')
	{
		drawCentered(display, line1, 6); // one line: vertically centered
		return;
	}
	drawCentered(display, line1, 1);
	drawCentered(display, line2, 10);
}