#!/usr/bin/python
# -*- coding:utf-8 -*-
import sys
import os
picdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'pic')
libdir = os.path.join(os.path.dirname(os.path.dirname(os.path.realpath(__file__))), 'lib')
if os.path.exists(libdir):
    sys.path.append(libdir)

import logging
from waveshare_epd import epd3in7
import time
from PIL import Image,ImageDraw,ImageFont
import traceback

logging.basicConfig(level=logging.DEBUG)

try:
    logging.info("epd3in7 Demo")
    
    epd = epd3in7.EPD()
    logging.info("init and Clear")
    epd.init(0)
    epd.Clear(0xFF, 0)
    
    font36 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 36)
    font24 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 24)
    font18 = ImageFont.truetype(os.path.join(picdir, 'Font.ttc'), 18)
    
    # Drawing on the Horizontal image
    logging.info("1.Drawing on the Horizontal image...")
    Himage = Image.new('L', (epd.height, epd.width), 0xFF)  # 0xFF: clear the frame
    draw = ImageDraw.Draw(Himage)
    draw.text((10, 0), 'hello world', font = font24, fill = 0)
    draw.text((10, 20), '3.7inch e-Paper', font = font24, fill = 0)
    draw.rectangle((10, 110, 154, 146), 'black', 'black')
    draw.text((10, 110), u'微雪电子', font = font36, fill = epd.GRAY1)
    draw.text((10, 150), u'微雪电子', font = font36, fill = epd.GRAY2)
    draw.text((10, 190), u'微雪电子', font = font36, fill = epd.GRAY3)
    draw.text((10, 230), u'微雪电子', font = font36, fill = epd.GRAY4)
    draw.line((20, 50, 70, 100), fill = 0)
    draw.line((70, 50, 20, 100), fill = 0)
    draw.rectangle((20, 50, 70, 100), outline = 0)
    draw.line((165, 50, 165, 100), fill = 0)
    draw.line((140, 75, 190, 75), fill = 0)
    draw.arc((140, 50, 190, 100), 0, 360, fill = 0)
    draw.rectangle((80, 50, 130, 100), fill = 0)
    draw.chord((200, 50, 250, 100), 0, 360, fill = 0)
    epd.display_4Gray(epd.getbuffer_4Gray(Himage))
    time.sleep(5)
    
    logging.info("2.read 4 Gray bmp file")
    Himage = Image.open(os.path.join(picdir, '3in7_4gray2.bmp'))
    epd.display_4Gray(epd.getbuffer_4Gray(Himage))
    time.sleep(5)
    
    logging.info("3.read bmp file on window")
    Himage2 = Image.new('1', (epd.height, epd.width), 255)  # 255: clear the frame
    bmp = Image.open(os.path.join(picdir, '100x100.bmp'))
    Himage2.paste(bmp, (200,50))
    epd.display_4Gray(epd.getbuffer_4Gray(Himage2))
    time.sleep(5)
    
    # Drawing on the Vertical image
    logging.info("4.Drawing on the Vertical image...")
    Limage = Image.new('L', (epd.width, epd.height), 0xFF)  # 0xFF: clear the frame
    draw = ImageDraw.Draw(Limage)
    draw.text((2, 0), 'hello world', font = font18, fill = 0)
    draw.text((2, 20), '3.7inch epd', font = font18, fill = 0)
    draw.rectangle((130, 20, 274, 56), 'black', 'black')
    draw.text((130, 20), u'微雪电子', font = font36, fill = epd.GRAY1)
    draw.text((130, 60), u'微雪电子', font = font36, fill = epd.GRAY2)
    draw.text((130, 100), u'微雪电子', font = font36, fill = epd.GRAY3)
    draw.text((130, 140), u'微雪电子', font = font36, fill = epd.GRAY4)
    draw.line((10, 90, 60, 140), fill = 0)
    draw.line((60, 90, 10, 140), fill = 0)
    draw.rectangle((10, 90, 60, 140), outline = 0)
    draw.line((95, 90, 95, 140), fill = 0)
    draw.line((70, 115, 120, 115), fill = 0)
    draw.arc((70, 90, 120, 140), 0, 360, fill = 0)
    draw.rectangle((10, 150, 60, 200), fill = 0)
    draw.chord((70, 150, 120, 200), 0, 360, fill = 0)
    epd.display_4Gray(epd.getbuffer_4Gray(Limage))
    time.sleep(5)

    # partial update, just 1 Gary mode
    logging.info("5.show time, partial update, just 1 Gary mode")
    epd.init(1)         # 1 Gary mode
    epd.Clear(0xFF, 1)
    time_image = Image.new('1', (epd.height, epd.width), 255)
    time_draw = ImageDraw.Draw(time_image)
    num = 0
    while (True):
        time_draw.rectangle((10, 10, 120, 50), fill = 255)
        time_draw.text((10, 10), time.strftime('%H:%M:%S'), font = font24, fill = 0)
        epd.display_1Gray(epd.getbuffer(time_image))
        
        num = num + 1
        if(num == 20):
            break
            
    logging.info("Clear...")
    epd.init(0)
    epd.Clear(0xFF, 0)
    
    logging.info("Goto Sleep...")
    epd.sleep()
    
except IOError as e:
    logging.info(e)
    
except KeyboardInterrupt:    
    logging.info("ctrl + c:")
    epd3in7.epdconfig.module_exit(cleanup=True)
    exit()
