419 lines
13 KiB
Python
419 lines
13 KiB
Python
from machine import Pin # type: ignore
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from neopixel import NeoPixel # type: ignore
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from utils import char_width
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from display import fonts
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from utils import colors
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from utils.time_utils import (
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get_german_timestamp_short,
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get_datetime_string,
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get_german_time_ticks,
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get_german_date_ticks,
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)
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import time
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import math
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class NeoPixel_64x64(NeoPixel):
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MATRIX_WIDTH = 64
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MATRIX_HEIGHT = 64
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def __init__(self, pin=28):
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"""
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Initialize LED Display
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Args:
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width: Matrix width in pixels
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height: Matrix height in pixels
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pin: NeoPixel data pin
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"""
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super().__init__(Pin(pin), self.MATRIX_WIDTH * self.MATRIX_HEIGHT)
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# Font configuration
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self.set_font(fonts.font_5x7)
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def set_font(self, font):
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"""
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Set the current font for text rendering
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Args:
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font: Font dictionary from fonts_array
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"""
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self.selected_font = font
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# Höhe des Fonts, Anzahl der Zeilen für jedes Zeichen
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# wir holen den ersten Wert des Fonts
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first_char = next(iter(self.selected_font))
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self.font_height = len(self.selected_font[first_char])
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def set_pixel(self, x, y, color):
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"""
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Set a single pixel to the specified color
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Args:
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x: X coordinate
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y: Y coordinate
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color: RGB color tuple
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"""
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index = y * self.MATRIX_WIDTH + x
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if 0 <= x < self.MATRIX_WIDTH and 0 <= y < self.MATRIX_HEIGHT:
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self[index] = color
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def clear(self):
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"""Clear the entire display (turn off all pixels)"""
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for i in range(len(self)):
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self[i] = colors.BLACK
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self.write()
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def clear_box(
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self,
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from_row: int,
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from_col: int,
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to_row: int,
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to_col: int,
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color: tuple[3] = colors.BLACK,
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) -> None:
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"""löscht einen Bereich (Box) im Display
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Args:
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from_row (int): Start-Zeile
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from_col (int): Start-Spalte
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to_row (int): End-Zeile
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to_col (int): End-Spalte
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"""
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for row in range(from_row, to_row):
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for col in range(from_col, to_col + 1):
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idx: int = row * self.MATRIX_WIDTH + col
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self[idx] = color
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self.write()
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def clear_row(self, row: int, effect: bool = False) -> None:
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"""löscht eine Zeile im Display entsprechend des eingestellten Fonts
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Args:
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row (int): in Pixel start bei 0 !!!
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effect (bool, optional): zeilenweise bzw. pixelweise löschen. Defaults to False.
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"""
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start = row * self.MATRIX_WIDTH
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ende = start + self.font_height * self.MATRIX_WIDTH - 1
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print(f"clear row: {row} --> pixels {start} to {ende}")
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for i in range(start, ende):
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self[i] = colors.BLACK
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if effect and i % self.MATRIX_WIDTH == 0:
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self.write()
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self.write()
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def draw_letter(self, letter, x, y, color):
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"""
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Draw a single letter using current font with optimized width
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Args:
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letter: Character to draw
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x: X position
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y: Y position
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color: RGB color tuple
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"""
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if letter in self.selected_font:
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char_data = self.selected_font[letter]
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charwidth = char_width(char_data)
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# background for the letter (full font size)
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[
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# print(xpos, ypos)
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self.set_pixel(xpos, ypos, colors.GRAY)
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for xpos in range(
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x, x + charwidth
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) # 8 because full with of character representation
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for ypos in range(y, y + self.font_height)
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]
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for row in range(self.font_height):
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row_data = char_data[row]
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for col in range(charwidth):
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# Check if pixel should be lit (MSB first)
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# Only check bits within the actual character width
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if row_data & (1 << ((charwidth - 1) - col)):
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self.set_pixel(x + col, y + row, color)
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else:
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print(f"oops, letter does not exist in the font -> {letter}")
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def draw_text(self, text, x, y, color):
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"""
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Draw text with optimized character spacing
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Args:
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text: Text to draw
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x: Starting X position
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y: Starting Y position
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color: RGB color tuple
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"""
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current_x = x
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for char in text:
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self.draw_letter(char, current_x, y, color)
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# Move cursor by character width + 1 pixel spacing
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charwidth = char_width(self.selected_font[char])
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current_x += charwidth + 1
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def show_hello(self):
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"""Display HELLO with timestamp"""
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self.clear()
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# Draw HELLO in rainbow colors
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self.draw_text("HELLO!", 6, 4, colors.RAINBOW[2])
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# Show timestamp
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datetimestr = get_german_timestamp_short()
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self.draw_text(datetimestr, 2, 15, colors.RAINBOW[4])
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self.write()
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def vertical_floating_text(
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self, text, x, color=colors.RAINBOW[0], float_range=3, speed=0.2, duration=10
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):
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"""
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Vertical floating text animation
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Args:
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text: Text to display
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x: X position (fixed)
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color: Text color
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float_range: How many pixels to float up/down
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speed: Animation speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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while time.time() - start_time < duration:
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# Calculate floating offset using sine wave
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offset = math.sin(time.time() * speed) * float_range
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current_y = int(
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self.MATRIX_HEIGHT // 2 + offset - (len(text) * self.font_height) // 2
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)
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self.clear()
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# Draw each letter vertically
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for i, char in enumerate(text):
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char_y = current_y + (i * self.font_height)
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# Keep text within matrix bounds
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if 0 <= char_y < self.MATRIX_HEIGHT - self.font_height:
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self.draw_letter(char, x, char_y, color)
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self.write()
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time.sleep(0.05)
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def horizontal_floating_text(
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self, text, y, color=colors.RAINBOW[0], float_range=3, speed=0.2, duration=10
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):
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"""
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Horizontal floating text animation
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Args:
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text: Text to display
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y: Y position (fixed)
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color: Text color
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float_range: How many pixels to float left/right
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speed: Animation speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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counter = 0
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while time.time() - start_time < duration:
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# Calculate floating offset using sine wave
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offset = math.sin(counter) * float_range
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current_x = int(offset) # to right
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self.clear()
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# Draw text at floating position
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for i, char in enumerate(text):
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charwidth = char_width(self.selected_font[char])
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char_x = current_x + (i * (charwidth + 1))
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# Keep text within matrix bounds
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if 0 <= char_x < self.MATRIX_WIDTH - charwidth:
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self.draw_letter(char, char_x, y, color)
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self.write()
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counter += speed
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time.sleep(0.05)
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def rotate_text_left_continuous(
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self, text, y, color=colors.RAINBOW[0], speed=1.0, duration=10
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):
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"""
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Continuous left rotation - text wraps around seamlessly
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Args:
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text: Text to display
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y: Y position (fixed)
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color: Text color
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speed: Movement speed
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duration: How long to run animation in seconds
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"""
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start_time = time.time()
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# hier müssen wir die Länge/Breite in Pixel des gesamten Textes berechnen
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# text_width_overall = len(text) * (self.font_width + 1)
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### TODO: ACHTUNG: noch zu testen !!!
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# Breite jedes Zeichens
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text_width_overall = sum(
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[char_width(self.selected_font[char]) for char in text]
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)
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position = 0
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while time.time() - start_time < duration:
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self.clear()
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# Draw text at current position
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for i, char in enumerate(text):
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charwidth = char_width(self.selected_font[char])
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char_x = int(position + (i * (charwidth + 1)))
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# Handle wrapping
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if char_x < -charwidth:
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char_x += self.MATRIX_WIDTH + text_width_overall
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if 0 <= char_x < self.MATRIX_WIDTH:
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self.draw_letter(char, char_x, y, color)
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self.write()
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# Move left and wrap around
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position -= speed
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if position < -text_width_overall:
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position = self.MATRIX_WIDTH
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time.sleep(0.05)
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def draw_rectangle(self, x, y, width, height, color, fill=False):
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"""
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Draw a rectangle
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Args:
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x: Top-left X position
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y: Top-left Y position
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width: Rectangle width
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height: Rectangle height
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color: RGB color tuple
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fill: Whether to fill the rectangle
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"""
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if fill:
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for i in range(height):
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for j in range(width):
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self.set_pixel(x + j, y + i, color)
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else:
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# Top and bottom edges
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for i in range(width):
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self.set_pixel(x + i, y, color)
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self.set_pixel(x + i, y + height - 1, color)
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# Left and right edges
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for i in range(height):
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self.set_pixel(x, y + i, color)
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self.set_pixel(x + width - 1, y + i, color)
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def draw_line(self, x1, y1, x2, y2, color):
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"""
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Draw a line using Bresenham's algorithm
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Args:
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x1, y1: Start coordinates
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x2, y2: End coordinates
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color: RGB color tuple
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"""
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dx = abs(x2 - x1)
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dy = abs(y2 - y1)
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sx = 1 if x1 < x2 else -1
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sy = 1 if y1 < y2 else -1
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err = dx - dy
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while True:
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self.set_pixel(x1, y1, color)
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if x1 == x2 and y1 == y2:
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break
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e2 = 2 * err
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if e2 > -dy:
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err -= dy
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x1 += sx
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if e2 < dx:
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err += dx
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y1 += sy
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def write_text(self, text: str, xpos: int, ypos: int, color=colors.WHITE) -> None:
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self.draw_text(text, xpos, ypos, color) # Pixel setzen
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self.write() # und anzeigen
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def screen_text(self, text: str):
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"""Text für einen Screen anpassen,
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Anzahl der Zeichen je Zeile begrenzen,
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ebenso wird die Höhe des Screen brücksichtigt
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Args:
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text (str): Text der ausgegeben werden soll
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font: Berechnungen für den Font
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height (int): Pixel
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width (int): Pixel
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"""
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def text_per_row(txt):
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pixs = 0
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visible_text = ""
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for a in txt:
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pixs += char_width(self.selected_font[a]) + 1
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if pixs > self.MATRIX_WIDTH:
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# Zeilenende erreicht
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break
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visible_text += a
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return visible_text
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# Ganzzahl Division
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max_visible_rows = self.MATRIX_HEIGHT // self.font_height
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print(f"rows_visible: {max_visible_rows}")
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text_left = text
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scn_txt = []
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for _ in range(max_visible_rows):
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visible_text = text_per_row(text_left)
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visible_text_len = len(visible_text)
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text_left = text_left[visible_text_len:]
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scn_txt.append(visible_text)
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if not text_left:
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break
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scr_txt_dict = {"visible": scn_txt, "invisible": text_left}
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return scr_txt_dict
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# Example usage
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if __name__ == "__main__":
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# Create display instance
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display = NeoPixel_64x64()
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print("LED Matrix Display Initialized")
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print(get_datetime_string())
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print(f"German time: {get_german_time_ticks()}")
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print(f"German date: {get_german_date_ticks()}")
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# Demo various functions
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display.show_hello()
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time.sleep(3)
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display.vertical_floating_text("HELLO", 30, colors.RAINBOW[0], 5, 0.15, 5)
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display.horizontal_floating_text("FLOAT", 28, colors.RAINBOW[1], 10, 0.1, 5)
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display.rotate_text_left_continuous("ROTATE FLOAT", 28, speed=8.0, duration=5)
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# Draw some shapes
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display.clear()
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display.draw_rectangle(5, 5, 10, 10, colors.RAINBOW[0])
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display.draw_rectangle(20, 20, 15, 8, colors.RAINBOW[2], fill=True)
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display.draw_line(0, 0, 63, 63, colors.RAINBOW[4])
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display.write()
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