2022-04-26 19:31:57 +00:00
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from PIL import Image, ImageDraw, ImageFont
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import sys
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# fonts are defined here
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fonts = {
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"r": "fonts/F25_Bank_Printer.ttf",
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"b": "fonts/F25_Bank_Printer_Bold.ttf",
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}
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2022-04-26 20:03:37 +00:00
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# image size is defined as 5000 x 5000 pixels
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size = (5000, 5000)
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2022-04-26 19:31:57 +00:00
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if len(sys.argv) == 1:
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print("please specify a path to a shirtfile")
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exit(1)
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# parse shirtfile into list of tuples
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#
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# shirtfile syntax:
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2022-04-26 20:03:37 +00:00
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# a shirtfile is a plain-text file made up of the following compontents
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#
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# different text color variants are defined on a line as follows
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# variants: [{file_suffix}:{r}:{g}:{b}] ...
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# where:
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# - file_suffix is the suffix to be added to a file of this variant, can be left empty
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# - r, g and b are the red, green and blue color components respecively (0-255)
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# if no variants are specified white text will be output to a file with no suffix
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#
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# lines of text are defined as lines in the following format
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2022-04-26 19:31:57 +00:00
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# {alignment}:{font}:{size} {text}
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# where:
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# - alignment can be:
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2022-04-26 19:31:57 +00:00
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# * 'm' for centered text
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# * 'l' for left aligned text
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# * 'r' for right aligned text
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# - font can be one of the configured fonts above, included per default are:
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# * 'r' for F25 Bank Printer (regular)
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# * 'b' for F25 Bank Printer Bold
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# - size is either 'fill' to automatically calculate a font size to fill the width of the canvas
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# or a font size in pixels
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# - text is your desired line of text (with no line breaks)
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#
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2022-04-26 19:31:57 +00:00
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# the shirtfile parser treats lines starting with # as comments and ignores empty lines
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#
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2022-04-26 20:03:37 +00:00
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variants = []
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2022-04-26 19:31:57 +00:00
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texts = []
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with open(sys.argv[1], "r") as f:
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lines = f.readlines()
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for line in lines:
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# skip comments and empyt lines
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if line.startswith("#") or len(line.strip()) == 0:
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continue
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2022-04-26 20:03:37 +00:00
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# parse variants
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if line.startswith("variants:"):
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if len(variants) > 0:
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print("variants block can only appear once")
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exit(1)
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parts = line.strip().removeprefix("variants: ").split(" ")
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for variant in parts:
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subparts = variant.split(":")
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variants.append(
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(subparts[0], (int(subparts[1]), int(subparts[2]), int(subparts[3]))))
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continue
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# parse lines
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2022-04-26 19:31:57 +00:00
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parts = line.strip().split(" ", 1)
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texts.append(tuple(parts[0].split(":")) + (parts[1],))
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2022-04-26 20:03:37 +00:00
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# default to white output with no filename suffix
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if len(variants) == 0:
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variants.append(("", (255, 255, 255)))
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2022-04-26 19:31:57 +00:00
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# quick maths
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# calculate appropriate text sizes and bounding box sizes for positioning later
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p_texts = []
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total_height = 0
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for text in texts:
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font_size = 50
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font_path = fonts[text[1]]
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bbox_size = (0, 0)
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font = None
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if text[2] == "fill":
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# dynamic font size calc is hell
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# reload font at increasing size until we fill out the whole canvas width
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while bbox_size[0] < (size[0] - 5):
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font = ImageFont.truetype(font_path, font_size)
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bbox = font.getbbox(text[3], anchor=f"{text[0]}b")
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bbox_size = (bbox[2] - bbox[0], bbox[3] - bbox[1])
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font_size += 5
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else:
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# load font for configured size and do bbox calculation
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font_size = int(text[2])
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font = ImageFont.truetype(font_path, font_size)
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bbox = font.getbbox(text[3], anchor=f"{text[0]}b")
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bbox_size = (bbox[2] - bbox[0], bbox[3] - bbox[1])
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print(f"selected font size {font_size}")
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total_height += bbox[1]
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p_texts.append(text + (font, bbox_size))
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# account for padding
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total_height += (len(texts) - 1) * 20
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2022-04-26 20:03:37 +00:00
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p_variants = []
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for variant in variants:
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# create transparent image
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im = Image.new("RGBA", size, (0, 0, 0, 0))
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# draw the text
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draw = ImageDraw.Draw(im)
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y_offset = 0
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for text in p_texts:
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# set x location dependent on alignment
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loc_x = 0
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if text[0] == "m":
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loc_x = (im.size[0]/2)
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elif text[0] == "r":
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loc_x = im.size[0]
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# calculate y location based on total height of all text + current line height to
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# center all text together in the center of the canvas
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loc_y = (im.size[1]/2 + total_height / 2) + text[5][1] + y_offset
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draw.text((loc_x, loc_y), text[3], font=text[4],
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anchor=f"{text[0]}b", fill=variant[1])
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# add height of this line to offset
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y_offset += text[5][1] + 20
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# crop to content and save
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im = im.crop(im.getbbox())
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filename = sys.argv[1].removesuffix(".shirt")
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im.save(f"{filename}{variant[0]}.png", 'PNG')
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