180 lines
6.3 KiB
Python
Executable File
180 lines
6.3 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (C) 2006 Aaron Spike, aaron@ekips.org
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# Copyright (C) 2010-2012 Nicolas Dufour, nicoduf@yahoo.fr
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# (Windows support and various fixes)
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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"""
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Export to Gimp's XCF file format including Grids and Guides.
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"""
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import os
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from collections import OrderedDict
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import inkex
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from inkex.base import TempDirMixin
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from inkex.command import take_snapshot, call
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from inkex.localization import inkex_gettext as _
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class PSDExport(TempDirMixin, inkex.OutputExtension):
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"""
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Provide a quick and dirty way of using gimp to output an xcf from Inkscape.
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Both Inkscape and Gimp must be installed for this extension to work.
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"""
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dir_prefix = 'gimp-out-'
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def add_arguments(self, pars):
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pars.add_argument("--tab")
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pars.add_argument("-d", "--guides", type=inkex.Boolean, help="Save Guides")
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pars.add_argument("-r", "--grid", type=inkex.Boolean, help="Save Grid")
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pars.add_argument("-b", "--background", type=inkex.Boolean, help="Save background color")
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pars.add_argument("-i", "--dpi", type=float, default=96.0, help="File resolution")
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def get_guides(self):
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"""Generate a list of horzontal and vertical only guides"""
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horz_guides = []
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vert_guides = []
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# Grab all guide tags in the namedview tag
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for guide in self.svg.namedview.get_guides():
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if guide.is_horizontal:
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# GIMP doesn't like guides that are outside of the image
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if 0 < guide.point.y < self.svg.height:
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# The origin is at the top in GIMP land
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horz_guides.append(str(guide.point.y))
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elif guide.is_vertical:
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# GIMP doesn't like guides that are outside of the image
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if 0 < guide.point.x < self.svg.width:
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vert_guides.append(str(guide.point.x))
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return ('h', ' '.join(horz_guides)), ('v', ' '.join(vert_guides))
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def get_grid(self):
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"""Get the grid if asked for and return as gimpfu script"""
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scale = (self.svg.scale) * (self.options.dpi / 96.0)
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# GIMP only allows one rectangular grid
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xpath = "sodipodi:namedview/inkscape:grid[@type='xygrid' and (not(@units) or @units='px')]"
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if self.svg.xpath(xpath):
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node = self.svg.getElement(xpath)
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for attr, default, target in (('spacing', 1, 'spacing'), ('origin', 0, 'offset')):
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fmt = {'target': target}
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for dim in 'xy':
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# These attributes could be nonexistent
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unit = float(node.get(attr + dim, default))
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unit = self.svg.uutounit(unit, "px") * scale
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fmt[dim] = int(round(float(unit)))
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yield '(gimp-image-grid-set-{target} img {x} {y})'.format(**fmt)
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@property
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def docname(self):
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"""Get the document name suitable for export"""
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return self.svg.get('sodipodi:docname') or 'document'
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def save(self, stream):
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pngs = OrderedDict()
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valid = False
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for node in self.svg.xpath("/svg:svg/*[name()='g' or @style][@id]"):
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if not len(node): # pylint: disable=len-as-condition
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# Ignore empty layers
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continue
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valid = True
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node_id = node.get('id')
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name = node.get("inkscape:label", node_id)
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pngs[name] = take_snapshot(
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self.document,
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dirname=self.tempdir,
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name=name,
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dpi=int(self.options.dpi),
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export_id=node_id,
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export_id_only=True,
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export_area_page=True,
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export_background_opacity=int(bool(self.options.background))
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)
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if not valid:
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inkex.errormsg(_('This extension requires at least one non empty layer.'))
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return
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xcf = os.path.join(self.tempdir, "{}.psd".format(self.docname))
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script_fu = """
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(tracing 1)
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(define
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(png-to-layer img png_filename layer_name)
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(let*
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(
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(png (car (file-png-load RUN-NONINTERACTIVE png_filename png_filename)))
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(png_layer (car (gimp-image-get-active-layer png)))
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(xcf_layer (car (gimp-layer-new-from-drawable png_layer img)))
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)
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(gimp-image-add-layer img xcf_layer -1)
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(gimp-drawable-set-name xcf_layer layer_name)
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)
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)
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(let*
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(
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(img (car (gimp-image-new 200 200 RGB)))
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)
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(gimp-image-set-resolution img {dpi} {dpi})
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(gimp-image-undo-disable img)
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(for-each
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(lambda (names)
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(png-to-layer img (car names) (cdr names))
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)
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(map cons '("{files}") '("{names}"))
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)
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(gimp-image-resize-to-layers img)
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""".format(
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dpi=self.options.dpi,
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files='" "'.join(pngs.values()),
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names='" "'.join(list(pngs))
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)
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if self.options.guides:
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for dim, guides in self.get_guides():
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script_fu += """
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(for-each
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(lambda ({d}Guide)
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(gimp-image-add-{d}guide img {d}Guide)
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)
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'({g})
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)""".format(d=dim, g=guides)
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# Grid
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if self.options.grid:
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for fu_let in self.get_grid():
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script_fu += "\n" + fu_let + "\n"
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script_fu += """
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(gimp-image-undo-enable img)
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(file-psd-save RUN-NONINTERACTIVE img (car (gimp-image-get-active-layer img)) "{xcf}" "{xcf}" 0 0))
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(gimp-quit 0)
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""".format(xcf=xcf)
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#please install with apt/dnf to install gimp. Do not use snap or flatpak installations
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call('gimp', "-b", "-", i=True, batch_interpreter="plug-in-script-fu-eval", stdin=script_fu)
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with open(xcf, 'rb') as fhl:
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stream.write(fhl.read())
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if __name__ == '__main__':
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PSDExport().run()
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