push changes

text.py

@@ -0,0 +1,71 @@
+#!/usr/bin/python3
+# SPDX-FileCopyrightText: 2025 Tim Cocks for Adafruit Industries
+#
+# SPDX-License-Identifier: MIT
+"""
+Display quote from the Adafruit quotes API as text scrolling across the
+matrices.
+
+Requires the requests library to be installed.
+
+Run like this:
+
+$ python quote_scroller.py
+
+"""
+
+import numpy as np
+import requests
+from PIL import Image, ImageDraw, ImageFont
+
+import adafruit_blinka_raspberry_pi5_piomatter as piomatter
+
+# 128px for 2x1 matrices. Change to 64 if you're using a single matrix.
+total_width = 192
+total_height = 64
+
+bottom_half_shift_compensation = 1
+
+font_color = (0, 128, 128)
+
+# Load the font
+font = ImageFont.truetype("LindenHill-webfont.ttf", 40)
+
+quote_resp = requests.get("https://www.adafruit.com/api/quotes.php").json()
+
+text = f'{quote_resp[0]["text"]} - {quote_resp[0]["author"]}'
+#text = "Sometimes you just want to use hardcoded strings. - Unknown"
+
+x, y, text_width, text_height = font.getbbox(text)
+
+full_txt_img = Image.new("RGB", (int(text_width) + 6, int(text_height) + 6), (0, 0, 0))
+draw = ImageDraw.Draw(full_txt_img)
+draw.text((3, 3), text, font=font, fill=font_color)
+full_txt_img.save("quote.png")
+
+single_frame_img = Image.new("RGB", (total_width, total_height), (0, 0, 0))
+
+geometry = piomatter.Geometry(width=total_width, height=total_height,
+                              n_addr_lines=5, rotation=piomatter.Orientation.Normal)
+framebuffer = np.asarray(single_frame_img) + 0  # Make a mutable copy
+
+matrix = piomatter.PioMatter(colorspace=piomatter.Colorspace.RGB888Packed,
+                             pinout=piomatter.Pinout.AdafruitMatrixBonnet,
+                             framebuffer=framebuffer,
+                             geometry=geometry)
+
+print("Ctrl-C to exit")
+while True:
+    for x_pixel in range(-total_width-1,full_txt_img.width):
+        if bottom_half_shift_compensation == 0:
+            # full paste
+            single_frame_img.paste(full_txt_img.crop((x_pixel, 0, x_pixel + total_width, total_height)), (0, 0))
+
+        else:
+            # top half
+            single_frame_img.paste(full_txt_img.crop((x_pixel, 0, x_pixel + total_width, total_height//2)), (0, 0))
+            # bottom half shift compensation
+            single_frame_img.paste(full_txt_img.crop((x_pixel, total_height//2, x_pixel + total_width, total_height)), (bottom_half_shift_compensation, total_height//2))
+
+        framebuffer[:] = np.asarray(single_frame_img)
+        matrix.show()