Content import ugfx, easydraw, system, badge ugfx.init() ugfx.clear(ugfx.BLACK) ugfx.flush() ugfx.clear(ugfx.WHITE) ugfx.flush() ugfx.orientation(0) screen_size = (ugfx.width()-15,ugfx.height()) max_onscreen = 10 # 10 lines is max that can fit on screen font_types = ( ("Roboto_Regular12", 12, 45), ("Roboto_Regular18", 18, 33), ("Roboto_Regular22", 22, 20)) ugfx.input_init() ugfx.input_attach(ugfx.JOY_DOWN, lambda pressed: move_view("down", pressed)) ugfx.input_attach(ugfx.JOY_UP, lambda pressed: move_view("up", pressed)) ugfx.input_attach(ugfx.JOY_LEFT, lambda pressed: move_view("left", pressed)) ugfx.input_attach(ugfx.JOY_RIGHT, lambda pressed: move_view("right", pressed)) ugfx.input_attach(ugfx.BTN_START, lambda pressed: quit(pressed)) def quit(pressed): if pressed: system.home() def get_string_width(string, font_id): return ugfx.get_string_width(string, font_types[font_id][0]) def parse_input_line(input_line, breaking_mode): if input_line.startswith("###"): font_id = 0 elif input_line.startswith("##"): font_id = 1 elif input_line.startswith("#"): font_id = 2 else: font_id = 0 input_line = input_line.lstrip("#") if breaking_mode=="experimental": smallletters=['ijl !1t():\'.,'] halfletters=['IJT[]'] words=input_line.split(" ") sentencelen=0 sentence="" output_lines=[] output_fonts = [font_id] for word in words: wordlen=2 for letter in word: if letter in smallletters: wordlen+=2 elif letter in halfletters: wordlen+=4 else: wordlen+=6 if sentencelen+wordlen<screen_size[0]: sentencelen+=wordlen sentence=sentence+" "+word if len(sentence) else word else: output_fonts += [font_id] output_lines+=[sentence] sentencelen=wordlen sentence=word output_lines+=[sentence] elif breaking_mode=="better": output_lines = [""] output_fonts = [font_id] counter = 0 current_width = 0 for char in input_line: current_char_width = get_string_width(char, font_id) if current_width + current_char_width < screen_size[0]: output_lines[counter] += char current_width += current_char_width else: output_lines += [char] output_fonts += [font_id] counter += 1 current_width = 0 elif breaking_mode == "worse": output_lines = [] output_fonts = [] length = font_types[font_id][2] while input_line: if len(input_line) >= length: output_lines += [input_line[:length]] output_fonts += [font_id] input_line = input_line[length:] else: output_lines += [input_line] output_fonts += [font_id] input_line = "" else: raise ValueError("this breaking mode does not exist") return output_lines, output_fonts def create_view(start_position, action): global view,parsed_lines,parsed_fonts,article_length ugfx.clear(ugfx.WHITE) steps = 0 if action == "next": current_height = 0, font_types[parsed_fonts[start_position]][1] while current_height[1] <= screen_size[1] and steps+start_position < article_length: ugfx.string( 5, current_height[0], parsed_lines[start_position+steps].strip(), font_types[parsed_fonts[start_position+steps]][0], ugfx.BLACK) steps += 1 current_height = (current_height[1], current_height[1] + font_types[parsed_fonts[start_position+steps]][1]) view = (start_position, start_position + steps) elif action == "prev": current_height = 0, font_types[parsed_fonts[start_position]][1] while current_height[1] <= screen_size[1] and steps+start_position > 0: ugfx.string( 5, screen_size[1] - current_height[1], parsed_lines[start_position+steps].strip(), font_types[parsed_fonts[start_position+steps]][0], ugfx.BLACK) steps -= 1 current_height = (current_height[1], current_height[1] + font_types[parsed_fonts[start_position+steps]][1]) view = (start_position+steps, start_position) else: raise ValueError("this action doesn't exist") ugfx.flush() return view def move_view(button_direction, pressed): global view,article_length,start,max_onscreen,f,eof if pressed: if button_direction == "down": start_position = view[0]+1 action = "next" elif button_direction == "up": start_position = view[0]-1 action = "next" elif button_direction == "right": start_position = view[1] action = "next" elif button_direction == "left": start_position = view[0] action = "prev" else: raise ValueError("this direction doesn't exist") if start_position <= 0: start_position = 0 action = "next" elif start_position >= article_length: start_position = article_length action= "prev" if start_position + max_onscreen >= article_length: if f: ugfx.fill_circle(291, 5, 10, ugfx.BLACK) ugfx.flush() if not eof: if not read_data(): eof = True print('EOF') else: print('File not yet read!') print("scroll: " + str(start_position)+" "+str(article_length)) view = create_view(start_position, action) def read(path, render="experimental", begin = 0, lines = 15): global view,start,read_lines,breaking_mode,parsed_lines,parsed_fonts,article_length,f,eof,first_run,file start = begin read_lines = lines breaking_mode = render parsed_lines = [] parsed_fonts = [] article_length = 0 eof = False first_run = True file = path easydraw.messageCentered("Loading "+path+"\nFrom "+str(start)+" to "+str(start+lines), True, "/media/busy.png") try: f = open(path,mode = 'r',encoding = 'utf-8') easydraw.messageCentered("Rendering", True, "/media/ok.png") read_data() view = create_view(0, "next") except BaseException as e: import sys,system sys.print_exception(e) system.home() def read_data(): global start,start_position,read_lines,breaking_mode,parsed_lines,parsed_fonts,article_length,f,first_run,file badge.nvs_set_u16('md_reader', file.replace('/', '_')[-15:], start) data_read = False print("data: "+str(start)+" "+str(read_lines)) for i, raw_line in enumerate(f): if first_run and i < start: pass else: data_read = True temp_parsed_lines, temp_parsed_fonts = parse_input_line(raw_line, breaking_mode) parsed_lines += temp_parsed_lines parsed_fonts += temp_parsed_fonts if i > read_lines: article_length = len(parsed_lines) start += i break first_run = False return data_read