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Content # text10 plain text editor for card10 # Written by LuKaRo, public@lrose.de # License: cc-by-nc-sa 4.0 import display import utime import buttons import color import simple_menu import os class MainMenu(simple_menu.Menu): color_1 = color.CAMPGREEN color_2 = color.CAMPGREEN_DARK def on_select(self, name, index): global text global menucountdown global insert_mode print("{!r} was selected!".format(name)) if name == "Load": FileMenu("/", "read").run() if name == "Save": FileMenu("/", "write").run() if name == "New File": text = "" menucountdown = MAX_MENU_COUNTDOWN main() if name == "Insert": insert_mode = True menucountdown = MAX_MENU_COUNTDOWN main() if name == "Replace": insert_mode = False menucountdown = MAX_MENU_COUNTDOWN main() class FileMenu(simple_menu.Menu): color_1 = color.CAMPGREEN color_2 = color.CAMPGREEN_DARK path = "/" access_type = "read" def __init__(self, path, access_type): filelist = os.listdir(path) filelist.append("..") filelist.sort() super().__init__(filelist) self.path = path self.access_type = access_type def on_select(self, name, index): global text global menucountdown print("{!r} was selected!".format(name)) if name == "..": oldpath = self.path.split("/") newpath = "/".join(oldpath[:-1]) else: newpath = self.path + "/" + name try: FileMenu(newpath, self.access_type).run() except: print("Couldn't load file menu for " + newpath) if self.access_type == "read": try: with open(newpath, "r") as file: text = file.read() menucountdown = MAX_MENU_COUNTDOWN main() except Exception as e: print(e) draw_error(disp, "Can't read file: " + newpath) elif self.access_type == "write": try: with open(newpath, "w") as file: file.write(text) draw_info(disp, "Saved!") utime.sleep(1) menucountdown = MAX_MENU_COUNTDOWN main() except Exception as e: print(e) draw_error(disp, "Can't save file: " + newpath) alphabet = " abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ.,-_0123456789:;!\"#$%&'()*+/<=>?[\]^{|}~" DISPLAY_SIZE = 44 MAX_MENU_COUNTDOWN = 5 menucountdown = 0 blink = False text = "" disp = display.Display() insert_mode = False def str_replace(string, pos, char, insert_mode = False): return (string[:pos] if insert_mode else string[:pos - 1]) + char + string[pos:] def draw_menu(disp, text = "", pos = 0, alphabet_idx = -1): global blink global menucountdown global insert_mode disp.clear() if menucountdown == 0: MainMenu(["Load", "Save", "New File", "Replace" if insert_mode else "Insert"]).run() elif (menucountdown < MAX_MENU_COUNTDOWN): disp.print(" Going to Menu in " + str(menucountdown)) else: if blink == True: if alphabet_idx < 0: text = str_replace(text, pos, "_", insert_mode); else: text = str_replace(text, pos, alphabet[alphabet_idx], insert_mode) blink = False else: blink = True if (insert_mode): text = str_replace(text, pos, " ", insert_mode); textlength = len(text) if textlength > DISPLAY_SIZE: # If Text is larger than display, display cursor in the middle if possible. chars_right_of_cursor = textlength - pos # At Maximum half the screen of characters right the cursor if (chars_right_of_cursor > DISPLAY_SIZE / 2): chars_right_of_cursor = int(DISPLAY_SIZE / 2) # Fill screen with characters left of cursor chars_left_of_cursor = DISPLAY_SIZE - chars_right_of_cursor - 1 if (chars_left_of_cursor > pos): # If not enough characters left of cursor available, use as many as possible chars_left_of_cursor = pos # Fill Screen with characters right of cursor then chars_right_of_cursor = DISPLAY_SIZE - chars_left_of_cursor - 1 if (chars_right_of_cursor > textlength - pos): # If also not enough characters right of cursor available, use as many as possible chars_right_of_cursor = textlength - pos # Trim text accordingly text = text[pos - chars_left_of_cursor:pos + chars_right_of_cursor] disp.print(text) disp.update() def draw_error(disp, error): disp.clear() disp.print(error) disp.update() def draw_info(disp, error): disp.clear() disp.print(error) disp.update() def draw_welcome(disp): disp.clear() disp.print(" text10 v2 loading by LuKaRo ") disp.update() utime.sleep_ms(500) def main(): global menucountdown global text global insert_mode draw_welcome(disp) pos = 1 length = 0 alphabet_idx = -1 press_and_hold = False; event = 0 oldev = 0 while True: event = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT | buttons.TOP_RIGHT) # If the button pressed stays the same during two subsequent iterations, user most likely kept the button pressed. if oldev == event and event != 0: press_and_hold = True; else: press_and_hold = False; oldev = event; if event == (buttons.TOP_RIGHT | buttons.BOTTOM_LEFT): menucountdown -= 1 if menucountdown > 0 else 0 elif menucountdown == MAX_MENU_COUNTDOWN: if event == buttons.TOP_RIGHT: # Scroll down alphabet_idx += 1 alphabet_idx %= len(alphabet) elif event == buttons.BOTTOM_LEFT: # Scroll up alphabet_idx = -1 pos = pos - 1 if pos > 0 else 0 elif event == buttons.BOTTOM_RIGHT: # If no char is selected and we're at the and of the string if alphabet_idx >= 0: text = str_replace(text, pos, alphabet[alphabet_idx], insert_mode) alphabet_idx = -1 pos += 1 elif menucountdown != 0: menucountdown += 1 print(pos) draw_menu(disp, text, pos, alphabet_idx) # Only wait for next iteration if user didn't keep the button pressed. if press_and_hold: utime.sleep_ms(30) else: utime.sleep_ms(150) if __name__ == "__main__": main()