Add text example

examples/text.py

@@ -0,0 +1,52 @@
+"""
+Text
+----
+
+Example that renders text with the bitmap context, using Pillow's ImageDraw.
+"""
+
+# run_example = true
+
+import numpy as np
+from rendercanvas.auto import RenderCanvas, loop
+from PIL import Image, ImageDraw, ImageFont
+
+
+canvas = RenderCanvas(update_mode="continuous")
+ctx = canvas.get_bitmap_context()
+
+
+@canvas.request_draw
+def animate():
+    w, h = ctx.physical_size
+    ratio = ctx.pixel_ratio
+
+    img = Image.new("RGBA", (w, h), "#fff")
+    # draw = aggdraw.Draw(img)  # like ImageDraw.Draw(img), but with subpixel support
+    draw = ImageDraw.Draw(img)
+
+    font_size = 16
+    line_height_p = font_size * 1.5 * ratio
+    font = ImageFont.load_default(size=font_size * ratio)
+
+    x = 10.0 * ratio
+    y = 0.0
+
+    for line in lorem.splitlines():
+        draw.text((x, y), text=line, fill=(0, 0, 0), font=font)
+        y += line_height_p
+
+    ctx.set_bitmap(np.asarray(img))
+
+
+lorem = """
+Lorem ipsum dolor sit amet, consectetur adipiscing elit,sed do eiusmod
+tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim
+veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex
+ea commodo consequat. Duis aute irure dolor in reprehenderit in
+voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur
+sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt
+mollit anim id est laborum.
+"""
+
+loop.run()