164 lines
6.3 KiB
Python
164 lines
6.3 KiB
Python
#!/usr/bin/env python3
|
|
'''
|
|
BSD 3-Clause License
|
|
|
|
Copyright (c) 2019, Pascal Wagler
|
|
All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this
|
|
list of conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright notice,
|
|
this list of conditions and the following disclaimer in the documentation
|
|
and/or other materials provided with the distribution.
|
|
|
|
3. Neither the name of the copyright holder nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
This Inkscape extension allows you to generate squared squares and squared rectangles from
|
|
Bouwkamp codes and table codes.
|
|
'''
|
|
|
|
import re
|
|
import inkex
|
|
from lxml import etree
|
|
|
|
class BouwkampCodeExtension(inkex.Effect):
|
|
"""
|
|
This Inkscape extension allows you to generate squared squares and squared rectangles from
|
|
Bouwkamp codes and table codes.
|
|
"""
|
|
|
|
def __init__(self):
|
|
inkex.Effect.__init__(self)
|
|
self.arg_parser.add_argument('--tab')
|
|
self.arg_parser.add_argument('--bouwkamp_code', default='21, 112, 112, [50, 35, 27], [8, 19], [15, 17, 11], [6, 24], [29, 25, 9, 2], [7, 18], [16], [42], [4, 37], [33]', help='The Bouwkamp code.'
|
|
)
|
|
self.arg_parser.add_argument('--wrap_in_group', type=inkex.Boolean, default=True, help='Should the generated items be wrapped inside a group.'
|
|
)
|
|
|
|
def effect(self):
|
|
# compute center of the view
|
|
center = self.svg.namedview.center
|
|
|
|
# create the group that holds all the elements
|
|
container = self.svg.get_current_layer()
|
|
if self.options.wrap_in_group:
|
|
group_attributes = {
|
|
inkex.addNS('label', 'inkscape'): 'BouwkampSquares',
|
|
'transform': 'translate' + str(center)
|
|
}
|
|
group = etree.SubElement(self.svg.get_current_layer(), 'g', group_attributes)
|
|
container = group
|
|
|
|
# parse the bouwkamp code string as a list
|
|
bouwkamp_code = self.parse_bouwkamp_code_from_string(self.options.bouwkamp_code)
|
|
|
|
# show an error message and exit if the bouwkamp code is invalid
|
|
try:
|
|
self.exception_on_invalid_bouwkamp_code(bouwkamp_code)
|
|
except ValueError as exception:
|
|
inkex.errormsg(str(exception))
|
|
return
|
|
|
|
# draw the bouwkamp code
|
|
self.draw_bouwkamp_code(container, center, bouwkamp_code)
|
|
|
|
@staticmethod
|
|
def exception_on_invalid_bouwkamp_code(bouwkamp_code):
|
|
"""
|
|
Raises a ValueError if the passed list is not a valid Bouwkamp code.
|
|
"""
|
|
|
|
if not bouwkamp_code: #len(bouwkamp_code) == 0
|
|
raise ValueError('Error: Invalid Bouwkamp code.\n\nThe Bouwkamp code is emtpy. ' +
|
|
'Please specify a valid Bouwkamp code.')
|
|
|
|
if len(bouwkamp_code) - 3 != bouwkamp_code[0]:
|
|
raise ValueError('Error: Invalid Bouwkamp code.\n\nThe Bouwkamp code has the wrong ' +
|
|
'length. The first number needs to specify how many squares ' +
|
|
'should be drawn.')
|
|
|
|
@staticmethod
|
|
def parse_bouwkamp_code_from_string(bouwkamp_code_string):
|
|
"""
|
|
Converts a Bouwkamp code string into a list of integers. Any parentheses, commas and
|
|
spaces are stripped. Extended Bouwkamp codes are not supported.
|
|
"""
|
|
|
|
# replace every character (except numbers) with a space
|
|
text = re.sub('[^0-9]', ' ', bouwkamp_code_string)
|
|
# collapse all spaces to just one space
|
|
text = re.sub(' {1,}', ' ', text).strip()
|
|
# split the string into small strings and convert them to integers
|
|
numbers = [int(x) for x in text.split(" ")]
|
|
|
|
return numbers
|
|
|
|
def draw_bouwkamp_code(self, parent, center, bouwkamp_code):
|
|
"""
|
|
Draws the passed Bouwkamp code (a list of integers) with rectangles.
|
|
"""
|
|
|
|
order = bouwkamp_code[0]
|
|
width = bouwkamp_code[1]
|
|
# height = bouwkamp_code[2]
|
|
code = bouwkamp_code[3:] # cut the first three elements away
|
|
|
|
i = 0
|
|
helper = [0] * 900
|
|
|
|
for rectangle in range(0, order):
|
|
i = 0
|
|
for j in range(1, width):
|
|
if helper[j] < helper[i]:
|
|
i = j
|
|
|
|
position = (i, helper[i])
|
|
dimension = (code[rectangle], code[rectangle])
|
|
self.draw_rectangle(position, dimension, parent, center)
|
|
|
|
for j in range(0, code[rectangle]):
|
|
helper[i+j] += code[rectangle]
|
|
|
|
def draw_rectangle(self, position, dimension, parent, center):
|
|
rectangle_style = {
|
|
'opacity': '1',
|
|
'stroke': '#000000',
|
|
'stroke-width': str(self.svg.unittouu('2px')),
|
|
'fill': '#FFFFFF'
|
|
}
|
|
|
|
transform = ""
|
|
if not self.options.wrap_in_group:
|
|
transform = 'translate' + str(center)
|
|
|
|
rectangle_attributes = {
|
|
'transform': transform,
|
|
'style': str(inkex.Style(rectangle_style)),
|
|
inkex.addNS('label', 'inkscape'): "Rectangle "+str(dimension[0]),
|
|
'x': str(position[0]),
|
|
'y': str(position[1]),
|
|
'width': str(dimension[0]),
|
|
'height': str(dimension[1])
|
|
}
|
|
|
|
etree.SubElement(parent, inkex.addNS('rect', 'svg'), rectangle_attributes)
|
|
|
|
if __name__ == '__main__':
|
|
BouwkampCodeExtension().run() |