from board import SCL, SDA
from busio import I2C
from adafruit_ssd1306 import SSD1306_I2C

class Graphics:
    OLED_WIDTH = 128
    OLED_HEIGHT = 64
    OLED_ADDR = 0x3C
    LINE_HEIGHT = 9
    CHAR_WIDTH = 6
    MAX_LINES = 7

    def __init__(self):
        i2c = I2C(SCL, SDA)
        self._display = SSD1306_I2C(
                self.OLED_WIDTH, self.OLED_HEIGHT, i2c, addr = self.OLED_ADDR)

    def clear(self):
        self._display.fill(0)

    def text(self, text, x, y, c):
        self._display.text(text, x * self.CHAR_WIDTH, y * self.LINE_HEIGHT, c)

    def pixel(self, x, y, c):
        self._display.pixel(x, y, c)

    def line(self, x1, y1, x2, y2, c):
        self._display.line(x1, y1, x2, y2, c)

    def rect(self, x1, y1, x2, y2, c):
        self._display.rect(x1, y1, x2, y2, c)

    def fill_rect(self, x1, y1, x2, y2, c):
        self._display.fill_rect(x1, y1, x2, y2, c)

    def show(self):
        self._display.show()