281 lines
16 KiB
Python
281 lines
16 KiB
Python
#! /usr/bin/env python3
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import os
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from abc import abstractmethod
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from lxml import etree
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from Path import Path, inkex
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class Pattern(inkex.Effect):
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@abstractmethod
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def generate_path_tree(self):
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""" Generate nested list of Path instances
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Abstract method, must be defined in all child classes
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"""
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pass
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def __init__(self):
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inkex.Effect.__init__(self) # initialize the super class
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self.add_argument = self.arg_parser.add_argument
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self.add_argument("-u", "--units", default='mm', help="Units this dialog is using")
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# self.add_argument("-a", "--add_attachment", type=inkex.Boolean, default=False, help="command line help")
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# self.add_argument("", "--accuracy", type=int, default=0, help="command line help")
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# --------------------------------------------------------------------------------------------------------------
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# mountain options
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self.add_argument('-m', '--mountain_stroke_color', default=4278190335, help='The mountain creases color.')
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self.add_argument('--mountain_stroke_width', type=float, default=0.1, help='Width of mountain strokes.')
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self.add_argument('--mountain_dashes_len', type=float, default=1.0, help='Mountain dash + gap length.')
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self.add_argument('--mountain_dashes_duty', type=float, default=0.5, help='Mountain dash duty cycle.')
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self.add_argument('--mountain_dashes_bool', type=inkex.Boolean, default=True, help='Dashed strokes?')
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self.add_argument('--mountain_bool', type=inkex.Boolean, default=True, help='Draw mountains?')
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self.add_argument('--mountain_bool_only', type=inkex.Boolean, default=False)
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# --------------------------------------------------------------------------------------------------------------
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# valley options
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self.add_argument('-v', '--valley_stroke_color', default=65535, help='The valley creases color.')
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self.add_argument('--valley_stroke_width', type=float, default=0.1, help='Width of valley strokes.')
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self.add_argument('--valley_dashes_len', type=float, default=1.0, help='Valley dash + gap length.')
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self.add_argument('--valley_dashes_duty', type=float, default=0.25, help='Valley dash duty cycle.')
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self.add_argument('--valley_dashes_bool', type=inkex.Boolean, default=True, help='Dashed strokes?')
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self.add_argument('--valley_bool', type=inkex.Boolean, default=True, help='Draw valleys?')
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self.add_argument('--valley_bool_only', type=inkex.Boolean, default=False)
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# --------------------------------------------------------------------------------------------------------------
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# edge options
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self.add_argument('-e', '--edge_stroke_color', default=255, help='The mountain creases color.')
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self.add_argument('--edge_stroke_width', type=float, default=0.1, help='Width of edge strokes.')
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self.add_argument('--edge_dashes_len', type=float, default=1.0, help='Edge dash + gap length.')
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self.add_argument('--edge_dashes_duty', type=float, default=0.25, help='Edge dash duty cycle.')
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self.add_argument('--edge_dashes_bool', type=inkex.Boolean, default=False, help='Dashed strokes?')
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self.add_argument('--edge_bool', type=inkex.Boolean, default=True, help='Draw edges?')
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self.add_argument('--edge_bool_only', type=inkex.Boolean, default=False)
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self.add_argument('--edge_single_path', type=inkex.Boolean, default=True, help='Edges as single path?')
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# --------------------------------------------------------------------------------------------------------------
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# universal crease options
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self.add_argument('--universal_stroke_color', default=4278255615, help='The universal creases color.')
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self.add_argument('--universal_stroke_width', type=float, default=0.1, help='Width of universal strokes.')
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self.add_argument('--universal_dashes_len', type=float, default=1.0, help='Universal dash + gap length.')
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self.add_argument('--universal_dashes_duty', type=float, default=0.25, help='Universal dash duty cycle.')
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self.add_argument('--universal_dashes_bool', type=inkex.Boolean, default=False, help='Dashed strokes?')
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self.add_argument('--universal_bool', type=inkex.Boolean, default=True, help='Draw universal creases?')
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self.add_argument('--universal_bool_only', type=inkex.Boolean, default=False)
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# --------------------------------------------------------------------------------------------------------------
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# semicrease options
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self.add_argument('--semicrease_stroke_color', default=4294902015, help='The semicrease creases color.')
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self.add_argument('--semicrease_stroke_width', type=float, default=0.1, help='Width of semicrease strokes.')
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self.add_argument('--semicrease_dashes_len', type=float, default=1.0, help='Semicrease dash + gap length.')
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self.add_argument('--semicrease_dashes_duty', type=float,default=0.25, help='Semicrease dash duty cycle.')
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self.add_argument('--semicrease_dashes_bool', type=inkex.Boolean, default=False, help='Dashed strokes?')
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self.add_argument('--semicrease_bool', type=inkex.Boolean, default=True, help='Draw semicreases?')
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self.add_argument('--semicrease_bool_only', type=inkex.Boolean, default=False)
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# --------------------------------------------------------------------------------------------------------------
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# cut options
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self.add_argument('--cut_stroke_color', default=16711935, help='The cut creases color.')
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self.add_argument('--cut_stroke_width', type=float, default=0.1, help='Width of cut strokes.')
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self.add_argument('--cut_dashes_len', type=float, default=1.0, help='Cut dash + gap length.')
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self.add_argument('--cut_dashes_duty', type=float, default=0.25, help='Cut dash duty cycle.')
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self.add_argument('--cut_dashes_bool', type=inkex.Boolean, default=False, help='Dashed strokes?')
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self.add_argument('--cut_bool', type=inkex.Boolean, default=True, help='Draw cuts?')
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self.add_argument('--cut_bool_only', type=inkex.Boolean, default=False)
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# --------------------------------------------------------------------------------------------------------------
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# vertex options
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self.add_argument('--vertex_stroke_color', default=255, help='Vertices\' color.')
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self.add_argument('--vertex_stroke_width', type=float, default=0.1, help='Width of vertex strokes.')
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self.add_argument('--vertex_radius', type=float, default=0.1, help='Radius of vertices.')
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self.add_argument('--vertex_bool', type=inkex.Boolean, default=True)
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self.add_argument('--vertex_bool_only', type=inkex.Boolean, default=False)
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# here so we can have tabs - but we do not use it directly - else error
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self.add_argument('--active-tab', default='title', help="Active tab.")
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self.path_tree = []
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self.edge_points = []
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self.vertex_points = []
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self.translate = (0, 0)
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def effect(self):
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# check if any selected to print only some of the crease types:
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bool_only_list = [self.options.mountain_bool_only,
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self.options.valley_bool_only,
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self.options.edge_bool_only,
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self.options.universal_bool_only,
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self.options.semicrease_bool_only,
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self.options.cut_bool_only,
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self.options.vertex_bool_only]
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if sum(bool_only_list) > 0:
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self.options.mountain_bool = self.options.mountain_bool and self.options.mountain_bool_only
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self.options.valley_bool = self.options.valley_bool and self.options.valley_bool_only
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self.options.edge_bool = self.options.edge_bool and self.options.edge_bool_only
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self.options.universal_bool = self.options.universal_bool and self.options.universal_bool_only
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self.options.semicrease_bool = self.options.semicrease_bool and self.options.semicrease_bool_only
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self.options.cut_bool = self.options.cut_bool and self.options.cut_bool_only
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self.options.vertex_bool = self.options.vertex_bool and self.options.vertex_bool_only
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# construct dictionary containing styles
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self.create_styles_dict()
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# get paths for selected origami pattern
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self.generate_path_tree()
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# ~ accuracy = self.options.accuracy
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# ~ unit_factor = self.calc_unit_factor()
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# what page are we on
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# page_id = self.options.active_tab # sometimes wrong the very first time
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# get vertex points and add them to path tree
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vertex_radius = self.options.vertex_radius * self.calc_unit_factor()
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vertices = []
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self.vertex_points = list(set([i for i in self.vertex_points])) # remove duplicates
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for vertex_point in self.vertex_points:
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vertices.append(Path(vertex_point, style='p', radius=vertex_radius))
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self.path_tree.append(vertices)
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# Translate according to translate attribute
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g_attribs = {inkex.addNS('label', 'inkscape'): '{} Origami pattern'.format(self.options.pattern),
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# inkex.addNS('transform-center-x','inkscape'): str(-bbox_center[0]),
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# inkex.addNS('transform-center-y','inkscape'): str(-bbox_center[1]),
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inkex.addNS('transform-center-x', 'inkscape'): str(0),
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inkex.addNS('transform-center-y', 'inkscape'): str(0),
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'transform': 'translate(%s,%s)' % self.translate}
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# add the group to the document's current layer
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if type(self.path_tree) == list and len(self.path_tree) != 1:
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self.topgroup = etree.SubElement(self.get_layer(), 'g', g_attribs)
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else:
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self.topgroup = self.get_layer()
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if len(self.edge_points) == 0:
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Path.draw_paths_recursively(self.path_tree, self.topgroup, self.styles_dict)
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elif self.options.edge_single_path:
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edges = Path(self.edge_points, 'e', closed=True)
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Path.draw_paths_recursively(self.path_tree + [edges], self.topgroup, self.styles_dict)
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else:
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edges = Path.generate_separated_paths(self.edge_points, 'e', closed=True)
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Path.draw_paths_recursively(self.path_tree + edges, self.topgroup, self.styles_dict)
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# self.draw_paths_recursively(self.path_tree, self.topgroup, self.styles_dict)
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# compatibility hack
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def get_layer(self):
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try:
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return self.svg.get_current_layer() # new
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except:
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return self.current_layer # old
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def create_styles_dict(self):
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""" Get stroke style parameters and use them to create the styles dictionary, used for the Path generation
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"""
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unit_factor = self.calc_unit_factor()
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# define colour and stroke width
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mountain_style = {'draw': self.options.mountain_bool,
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'stroke': self.get_color_string(self.options.mountain_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.mountain_stroke_width*unit_factor}
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valley_style = {'draw': self.options.valley_bool,
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'stroke': self.get_color_string(self.options.valley_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.valley_stroke_width*unit_factor}
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universal_style = {'draw': self.options.universal_bool,
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'stroke': self.get_color_string(self.options.universal_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.universal_stroke_width*unit_factor}
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semicrease_style = {'draw': self.options.semicrease_bool,
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'stroke': self.get_color_string(self.options.semicrease_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.semicrease_stroke_width*unit_factor}
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cut_style = {'draw': self.options.cut_bool,
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'stroke': self.get_color_string(self.options.cut_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.cut_stroke_width*unit_factor}
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edge_style = {'draw': self.options.edge_bool,
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'stroke': self.get_color_string(self.options.edge_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.edge_stroke_width*unit_factor}
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vertex_style = {'draw': self.options.vertex_bool,
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'stroke': self.get_color_string(self.options.vertex_stroke_color),
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'fill': 'none',
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'stroke-width': self.options.vertex_stroke_width*unit_factor}
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# check if dashed option selected
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if self.options.mountain_dashes_bool:
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dash = self.options.mountain_dashes_len*self.options.mountain_dashes_duty*unit_factor
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gap = abs(dash - self.options.mountain_dashes_len*unit_factor)
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mountain_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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if self.options.valley_dashes_bool:
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dash = self.options.valley_dashes_len * self.options.valley_dashes_duty*unit_factor
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gap = abs(dash - self.options.valley_dashes_len*unit_factor)
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valley_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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if self.options.edge_dashes_bool:
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dash = self.options.edge_dashes_len * self.options.edge_dashes_duty*unit_factor
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gap = abs(dash - self.options.edge_dashes_len*unit_factor)
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edge_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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if self.options.universal_dashes_bool:
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dash = self.options.universal_dashes_len * self.options.universal_dashes_duty*unit_factor
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gap = abs(dash - self.options.universal_dashes_len*unit_factor)
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universal_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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if self.options.semicrease_dashes_bool:
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dash = self.options.semicrease_dashes_len * self.options.semicrease_dashes_duty*unit_factor
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gap = abs(dash - self.options.semicrease_dashes_len*unit_factor)
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semicrease_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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if self.options.cut_dashes_bool:
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dash = self.options.cut_dashes_len * self.options.cut_dashes_duty*unit_factor
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gap = abs(dash - self.options.cut_dashes_len*unit_factor)
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cut_style['stroke-dasharray'] = "{},{}".format(dash, gap)
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self.styles_dict = {'m': mountain_style,
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'v': valley_style,
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'u': universal_style,
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's': semicrease_style,
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'c': cut_style,
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'e': edge_style,
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'p': vertex_style}
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def get_color_string(self, longColor, verbose=False):
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""" Convert the long into a #RRGGBB color value
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- verbose=true pops up value for us in defaults
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conversion back is A + B*256^1 + G*256^2 + R*256^3
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"""
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# compatibility hack, no "long" in Python 3
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try:
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longColor = long(longColor)
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if longColor < 0: longColor = long(longColor) & 0xFFFFFFFF
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hexColor = hex(longColor)[2:-3]
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except:
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longColor = int(longColor)
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hexColor = hex(longColor)[2:-2]
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inkex.debug = inkex.utils.debug
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hexColor = '#' + hexColor.rjust(6, '0').upper()
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if verbose: inkex.debug("longColor = {}, hex = {}".format(longColor,hexColor))
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return hexColor
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def add_text(self, node, text, position, text_height=12):
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""" Create and insert a single line of text into the svg under node.
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"""
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line_style = {'font-size': '%dpx' % text_height, 'font-style':'normal', 'font-weight': 'normal',
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'fill': '#F6921E', 'font-family': 'Bitstream Vera Sans,sans-serif',
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'text-anchor': 'middle', 'text-align': 'center'}
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line_attribs = {inkex.addNS('label','inkscape'): 'Annotation',
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'style': str(Inkex.style(line_style)),
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'x': str(position[0]),
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'y': str((position[1] + text_height) * 1.2)
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}
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line = etree.SubElement(node, inkex.addNS('text','svg'), line_attribs)
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line.text = text
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def calc_unit_factor(self):
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return self.svg.unittouu(str(1.0) + self.options.units) |