from ili934xnew import ILI9341, color565
from machine import Pin, SPI
from micropython import const
import os
import glcdfont
import tt14
import tt24
import tt32
import time


SCR_WIDTH = const(320)
SCR_HEIGHT = const(240)
SCR_ROT = const(2)
CENTER_Y = int(SCR_WIDTH/2)
CENTER_X = int(SCR_HEIGHT/2)

print(os.uname())
TFT_CLK_PIN = const(6)
TFT_MOSI_PIN = const(7)
TFT_MISO_PIN = const(4)

TFT_CS_PIN = const(13)
TFT_RST_PIN = const(14)
TFT_DC_PIN = const(15)

fonts = [glcdfont,tt14,tt24,tt32]
text = 'Hello Raspberry Pi Pico/ili9341'

print(text)
print("fonts available:")
for f in fonts:
    print(f.__name__)

spi = SPI(
    0,
    baudrate=40000000,
    miso=Pin(TFT_MISO_PIN),
    mosi=Pin(TFT_MOSI_PIN),
    sck=Pin(TFT_CLK_PIN))
print(spi)

display = ILI9341(
    spi,
    cs=Pin(TFT_CS_PIN),
    dc=Pin(TFT_DC_PIN),
    rst=Pin(TFT_RST_PIN),
    w=SCR_WIDTH,
    h=SCR_HEIGHT,
    r=SCR_ROT)

display.erase()
display.set_pos(0,0)

for ff in fonts:
    display.set_font(ff)
    display.print(text)

display.set_font(tt24)
display.set_color(color565(255, 255, 0), color565(150, 150, 150))
display.print("\nThanks:")
display.print("https://github.com/jeffmer/micropython-ili9341")

time.sleep(1)

for i in range(170):
    display.scroll(1)
    time.sleep(0.01)
    
time.sleep(1)
for i in range(170):
    display.scroll(-1)
    time.sleep(0.01)
    
time.sleep(1)
for h in range(SCR_WIDTH):
    if h > SCR_HEIGHT:
        w = SCR_HEIGHT
    else:
        w = h
        
    display.fill_rectangle(0, 0, w, h, color565(0, 0, 255))
    time.sleep(0.01)

time.sleep(0.5)
display.erase()

# Helper function to draw a circle from a given position with a given radius
# This is an implementation of the midpoint circle algorithm,
# see https://en.wikipedia.org/wiki/Midpoint_circle_algorithm#C_example 
# for details
def draw_circle(xpos0, ypos0, rad, col=color565(255, 255, 255)):
    x = rad - 1
    y = 0
    dx = 1
    dy = 1
    err = dx - (rad << 1)
    while x >= y:
        display.pixel(xpos0 + x, ypos0 + y, col)
        display.pixel(xpos0 + y, ypos0 + x, col)
        display.pixel(xpos0 - y, ypos0 + x, col)
        display.pixel(xpos0 - x, ypos0 + y, col)
        display.pixel(xpos0 - x, ypos0 - y, col)
        display.pixel(xpos0 - y, ypos0 - x, col)
        display.pixel(xpos0 + y, ypos0 - x, col)
        display.pixel(xpos0 + x, ypos0 - y, col)
        if err <= 0:
            y += 1
            err += dy
            dy += 2
        if err > 0:
            x -= 1
            dx += 2
            err += dx - (rad << 1)
    
draw_circle(CENTER_X, CENTER_Y, 100)

display.set_pos(1,10)
display.print("helloraspberrypi.blogspot.com")

for c in range(99):
    draw_circle(CENTER_X, CENTER_Y, c, color565(255, 0, 0))
    
for c in range(98):
    draw_circle(CENTER_X, CENTER_Y, c, color565(0, 255, 0))
    
for c in range(97):
    draw_circle(CENTER_X, CENTER_Y, c, color565(0, 0, 255))

print("- bye-")