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Diffstat (limited to 'share/extensions/layout_nup.py')
| -rwxr-xr-x | share/extensions/layout_nup.py | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/share/extensions/layout_nup.py b/share/extensions/layout_nup.py new file mode 100755 index 0000000..5799f55 --- /dev/null +++ b/share/extensions/layout_nup.py @@ -0,0 +1,255 @@ +#!/usr/bin/env python +# coding=utf-8 +# +# Copyright (C) 2007 Terry Brown, terry_n_brown@yahoo.com +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +from __future__ import absolute_import, unicode_literals + +import inkex +from inkex import Use, Rectangle +from inkex.base import SvgOutputMixin + +class Nup(inkex.OutputExtension, SvgOutputMixin): + """N-up Layout generator""" + def add_arguments(self, pars): + pars.add_argument('--unit', default='px') + pars.add_argument('--rows', type=int, default=2) + pars.add_argument('--cols', type=int, default=2) + pars.add_argument('--paddingTop', type=float) + pars.add_argument('--paddingBottom', type=float) + pars.add_argument('--paddingLeft', type=float) + pars.add_argument('--paddingRight', type=float) + pars.add_argument('--marginTop', type=float) + pars.add_argument('--marginBottom', type=float) + pars.add_argument('--marginLeft', type=float) + pars.add_argument('--marginRight', type=float) + pars.add_argument('--pgMarginTop', type=float) + pars.add_argument('--pgMarginBottom', type=float) + pars.add_argument('--pgMarginLeft', type=float) + pars.add_argument('--pgMarginRight', type=float) + pars.add_argument('--pgSizeX', type=float) + pars.add_argument('--pgSizeY', type=float) + pars.add_argument('--sizeX', type=float) + pars.add_argument('--sizeY', type=float) + pars.add_argument('--calculateSize', type=inkex.Boolean, default=True) + pars.add_argument('--showHolder', type=inkex.Boolean, default=True) + pars.add_argument('--showCrosses', type=inkex.Boolean, default=True) + pars.add_argument('--showInner', type=inkex.Boolean, default=True) + pars.add_argument('--showOuter', type=inkex.Boolean, default=False) + pars.add_argument('--showInnerBox', type=inkex.Boolean, default=False) + pars.add_argument('--showOuterBox', type=inkex.Boolean, default=False) + pars.add_argument('--tab') + + def save(self, stream): + show_list = [] + for i in ['showHolder', 'showCrosses', 'showInner', 'showOuter', + 'showInnerBox', 'showOuterBox', ]: + if getattr(self.options, i): + show_list.append(i.lower().replace('show', '')) + opt = self.options + ret = self.generate_nup( + unit=opt.unit, + pgSize=(opt.pgSizeX, opt.pgSizeY), + pgMargin=(opt.pgMarginTop, opt.pgMarginRight, opt.pgMarginBottom, opt.pgMarginLeft), + num=(opt.rows, opt.cols), + calculateSize=opt.calculateSize, + size=(opt.sizeX, opt.sizeY), + margin=(opt.marginTop, opt.marginRight, opt.marginBottom, opt.marginLeft), + padding=(opt.paddingTop, opt.paddingRight, opt.paddingBottom, opt.paddingLeft), + show=show_list, + ) + if ret: + stream.write(ret) + + def expandTuple(self, unit, x, length=4): + try: + iter(x) + except: + return None + + if len(x) != length: + x *= 2 + if len(x) != length: + raise Exception("expandTuple: requires 2 or 4 item tuple") + try: + return tuple(map(lambda ev: (self.svg.unittouu(str(eval(str(ev))) + unit) / self.svg.unittouu('1px')), x)) + except: + return None + + def generate_nup(self, + unit="px", + pgSize=("8.5*96", "11*96"), + pgMargin=(0, 0), + pgPadding=(0, 0), + num=(2, 2), + calculateSize=True, + size=None, + margin=(0, 0), + padding=(20, 20), + show=['default'], + ): + """Generate the SVG. Inputs are run through 'eval(str(x))' so you can use + '8.5*72' instead of 612. Margin / padding dimension tuples can be + (top & bottom, left & right) or (top, right, bottom, left). + + Keyword arguments: + pgSize -- page size, width x height + pgMargin -- extra space around each page + pgPadding -- added to pgMargin + n -- rows x cols + size -- override calculated size, width x height + margin -- white space around each piece + padding -- inner padding for each piece + show -- list of keywords indicating what to show + - 'crosses' - cutting guides + - 'inner' - inner boundary + - 'outer' - outer boundary + """ + + if 'default' in show: + show = set(show).union(['inner', 'innerbox', 'holder', 'crosses']) + + pgMargin = self.expandTuple(unit, pgMargin) + pgPadding = self.expandTuple(unit, pgPadding) + margin = self.expandTuple(unit, margin) + padding = self.expandTuple(unit, padding) + + pgSize = self.expandTuple(unit, pgSize, length=2) + # num = tuple(map(lambda ev: eval(str(ev)), num)) + + if not pgMargin or not pgPadding: + return inkex.errormsg("No padding or margin available.") + + page_edge = list(map(sum, zip(pgMargin, pgPadding))) + + top, right, bottom, left = 0, 1, 2, 3 + width, height = 0, 1 + rows, cols = 0, 1 + size = self.expandTuple(unit, size, length=2) + if size is None or calculateSize or len(size) < 2 or size[0] == 0 or size[1] == 0: + size = ((pgSize[width] + - page_edge[left] - page_edge[right] + - num[cols] * (margin[left] + margin[right])) / num[cols], + (pgSize[height] + - page_edge[top] - page_edge[bottom] + - num[rows] * (margin[top] + margin[bottom])) / num[rows] + ) + else: + size = self.expandTuple(unit, size, length=2) + + # sep is separation between same points on pieces + sep = (size[width] + margin[right] + margin[left], + size[height] + margin[top] + margin[bottom]) + + style = 'stroke:#000000;stroke-opacity:1;fill:none;fill-opacity:1;' + + padbox = Rectangle( + x=str(page_edge[left] + margin[left] + padding[left]), + y=str(page_edge[top] + margin[top] + padding[top]), + width=str(size[width] - padding[left] - padding[right]), + height=str(size[height] - padding[top] - padding[bottom]), + style=style, + ) + margbox = Rectangle( + x=str(page_edge[left] + margin[left]), + y=str(page_edge[top] + margin[top]), + width=str(size[width]), + height=str(size[height]), + style=style, + ) + + doc = self.get_template(width=pgSize[width], height=pgSize[height]) + svg = doc.getroot() + + def make_clones(under, to): + for row in range(0, num[rows]): + for col in range(0, num[cols]): + if row == 0 and col == 0: + continue + use = under.add(Use()) + use.set('xlink:href', '#' + to) + use.transform.add_translate(col * sep[width], row * sep[height]) + + # guidelayer ##################################################### + if {'inner', 'outer'}.intersection(show): + layer = svg.add(inkex.Layer.new('Guide Layer')) + if 'inner' in show: + ibox = layer.add(padbox.copy()) + ibox.style['stroke'] = '#8080ff' + ibox.set('id', 'innerguide') + make_clones(layer, 'innerguide') + if 'outer' in show: + obox = layer.add(margbox.copy()) + obox.style['stroke'] = '#8080ff' + obox.set('id', 'outerguide') + make_clones(layer, 'outerguide') + + # crosslayer ##################################################### + if {'crosses'}.intersection(show): + layer = svg.add(inkex.Layer.new('Cut Layer')) + + if 'crosses' in show: + crosslen = 12 + group = layer.add(inkex.Group(id='cross')) + x, y = 0, 0 + path = 'M%f %f' % (x + page_edge[left] + margin[left], + y + page_edge[top] + margin[top] - crosslen) + path += ' L%f %f' % (x + page_edge[left] + margin[left], + y + page_edge[top] + margin[top] + crosslen) + path += ' M%f %f' % (x + page_edge[left] + margin[left] - crosslen, + y + page_edge[top] + margin[top]) + path += ' L%f %f' % (x + page_edge[left] + margin[left] + crosslen, + y + page_edge[top] + margin[top]) + group.add(inkex.PathElement(style=style + 'stroke-width:0.05', + d=path, id='crossmarker')) + for row in 0, 1: + for col in 0, 1: + if row or col: + cln = group.add(Use()) + cln.set('xlink:href', '#crossmarker') + cln.transform.add_translate(col * size[width], row * size[height]) + make_clones(layer, 'cross') + + # clonelayer ##################################################### + layer = svg.add(inkex.Layer.new('Clone Layer')) + make_clones(layer, 'main') + + # mainlayer ###################################################### + layer = svg.add(inkex.Layer.new('Main Layer')) + group = layer.add(inkex.Group(id='main')) + + if 'innerbox' in show: + group.add(padbox) + if 'outerbox' in show: + group.add(margbox) + if 'holder' in show: + x, y = (page_edge[left] + margin[left] + padding[left], + page_edge[top] + margin[top] + padding[top]) + w, h = (size[width] - padding[left] - padding[right], + size[height] - padding[top] - padding[bottom]) + path = 'M{:f} {:f}'.format(x + w / 2., y) + path += ' L{:f} {:f}'.format(x + w, y + h / 2.) + path += ' L{:f} {:f}'.format(x + w / 2., y + h) + path += ' L{:f} {:f}'.format(x, y + h / 2.) + path += ' Z' + group.add(inkex.PathElement(style=style, d=path)) + + return svg.tostring() + + +if __name__ == '__main__': + Nup().run() |