kopia lustrzana https://github.com/EmbroidePy/pyembroidery
80 wiersze
2.2 KiB
Python
80 wiersze
2.2 KiB
Python
import math
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from .EmbConstant import *
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from .EmbThreadShv import get_thread_set
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from .ReadHelper import (
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read_int_8,
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read_int_16be,
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read_int_32be,
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read_string_8,
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signed8,
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signed16,
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)
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def read(f, out, settings=None):
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in_jump = False
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f.seek(0x56, 1) # header text
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length = read_int_8(f)
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out.metadata("name", read_string_8(f, length))
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design_width = read_int_8(f)
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design_height = read_int_8(f)
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skip = math.ceil(design_height / 2.0) * design_width
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f.seek(4 + int(skip), 1)
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color_count = read_int_8(f)
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f.seek(18, 1)
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threads = get_thread_set()
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stitch_per_color = {}
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for i in range(color_count):
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stitch_count = read_int_32be(f)
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color_code = read_int_8(f)
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thread = threads[color_code % len(threads)]
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out.add_thread(thread)
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stitch_per_color[i] = stitch_count
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f.seek(9, 1)
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f.seek(-2, 1)
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stitches_since_stop = 0
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current_color_index = 0
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try:
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max_stitches = stitch_per_color[current_color_index]
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except IndexError:
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max_stitches = 0
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while True:
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flags = STITCH
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if in_jump:
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flags = JUMP
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b0 = read_int_8(f)
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b1 = read_int_8(f)
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if b1 is None:
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break
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if stitches_since_stop >= max_stitches:
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out.color_change()
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stitches_since_stop = 0
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current_color_index += 1
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try:
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max_stitches = stitch_per_color[current_color_index]
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except KeyError:
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max_stitches = 0xFFFFFFFF
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if b0 == 0x80:
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stitches_since_stop += 1
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if b1 == 3:
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continue
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elif b1 == 2:
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in_jump = False
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continue
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elif b1 == 1:
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stitches_since_stop += 2
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sx = signed16(read_int_16be(f))
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sy = signed16(read_int_16be(f))
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in_jump = True
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out.move(sx, sy)
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continue
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dx = signed8(b0)
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dy = signed8(b1)
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stitches_since_stop += 1
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out.add_stitch_relative(flags, dx, dy)
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out.end()
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