def draw_name(draw: ImageDraw.Draw,
name: str,
box: t.Tuple[int, int, int, int],
font_path: str,
font_size: int = 40) -> None:
"""
Draw outlined text on image centered in box, downscaling font if necessary to fit.
:param draw: target
:param name: content
:param box: location
:param font_path: path to truetype font
:param font_size: max font size
:return:
"""
if not name:
return
x, y, w, h = box
font = ImageFont.truetype(font_path, font_size)
text_width, text_height = draw.multiline_textsize(name, font)
downsize_factor = min(
w / text_width,
h / text_height,
)
if downsize_factor < 1.:
font = ImageFont.truetype(font_path, int(font_size * downsize_factor))
text_width, text_height = draw.multiline_textsize(name, font)
x_1, y_1, x_2, y_2 = center_box(w, h, text_width, text_height)
draw_text_with_outline(
draw=draw,
xy=(x_1 + x, y_1 + y),
text=name,
font=font,
color=(255, ) * 3,
background_color=(0, ) * 3,
)
def make_text(
text: str,
box=(0, 0),
font_path='',
init_font_size=76,
color=(0, 0, 0, 255),
stroke=None, # stroke can be a color tuple
align='left',
emojis={},
instance=''):
if contains_emojis(text, emojis):
# fancy rendering enabled
# redirect to fit_text_with_emojis_in_box()
return make_emoji_text(text,
emojis=emojis,
instance=instance,
box=box,
font_path=font_path,
color=color,
stroke=stroke,
align=align)
canvas = Image.new('RGBA', box, color=(255, 255, 255, 0))
draw = Draw(canvas)
textsize = (box[0] + 1, box[1] + 1)
font_size = init_font_size # max font size is 72; decrease by 4 until fit
while textsize[0] > box[0] or textsize[1] > box[1]: # doesn't fit
if 0 < font_size <= 16:
font_size -= 1
elif 16 < font_size < 32:
font_size -= 2
elif font_size >= 32:
font_size -= 4
else:
break
font = truetype(font_path, size=font_size)
# try to fit in the horizontal boundary
wrapped = wrap_text(text, box[0], font)
textsize = draw.multiline_textsize(wrapped, font=font)
# when wrapped text fits in box, loop will exit, and font is remembered
draw.multiline_text(
(0, 0),
wrapped,
fill=color if stroke is None else WHITE,
font=font,
stroke_fill=stroke,
stroke_width=(max(font_size // 20, 2) if stroke is not None else 0),
align=align)
return canvas
