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Diffstat (limited to 'share/extensions/gimp_xcf.py')
| -rwxr-xr-x | share/extensions/gimp_xcf.py | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/share/extensions/gimp_xcf.py b/share/extensions/gimp_xcf.py new file mode 100755 index 0000000..826b12e --- /dev/null +++ b/share/extensions/gimp_xcf.py @@ -0,0 +1,179 @@ +#!/usr/bin/env python +# coding=utf-8 +# +# Copyright (C) 2006 Aaron Spike, aaron@ekips.org +# Copyright (C) 2010-2012 Nicolas Dufour, nicoduf@yahoo.fr +# (Windows support and various fixes) +# +# 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. +# +""" +Export to Gimp's XCF file format including Grids and Guides. +""" + +import os +from collections import OrderedDict + +import inkex +from inkex.base import TempDirMixin +from inkex.command import take_snapshot, call +from inkex.localization import inkex_gettext as _ + +class GimpXcf(TempDirMixin, inkex.OutputExtension): + """ + Provide a quick and dirty way of using gimp to output an xcf from Inkscape. + + Both Inkscape and Gimp must be installed for this extension to work. + """ + dir_prefix = 'gimp-out-' + + def add_arguments(self, pars): + pars.add_argument("--tab", dest="tab") + pars.add_argument("-d", "--guides", type=inkex.Boolean, help="Save the Guides in the XCF") + pars.add_argument("-r", "--grid", type=inkex.Boolean, help="Save the Grid with the .XCF") + pars.add_argument("-b", "--background", type=inkex.Boolean, help="Add background color") + pars.add_argument("-i", "--dpi", type=float, default=96.0, help="File resolution") + + def get_guides(self): + """Generate a list of horzontal and vertical only guides""" + horz_guides = [] + vert_guides = [] + # Grab all guide tags in the namedview tag + for guide in self.svg.namedview.get_guides(): + if guide.is_horizontal: + # GIMP doesn't like guides that are outside of the image + if 0 < guide.point.y < self.svg.height: + # The origin is at the top in GIMP land + horz_guides.append(str(guide.point.y)) + elif guide.is_vertical: + # GIMP doesn't like guides that are outside of the image + if 0 < guide.point.x < self.svg.width: + vert_guides.append(str(guide.point.x)) + + return ('h', ' '.join(horz_guides)), ('v', ' '.join(vert_guides)) + + def get_grid(self): + """Get the grid if asked for and return as gimpfu script""" + scale = (self.svg.scale) * (self.options.dpi / 96.0) + # GIMP only allows one rectangular grid + xpath = "sodipodi:namedview/inkscape:grid[@type='xygrid' and (not(@units) or @units='px')]" + if self.svg.xpath(xpath): + node = self.svg.getElement(xpath) + for attr, default, target in (('spacing', 1, 'spacing'), ('origin', 0, 'offset')): + fmt = {'target': target} + for dim in 'xy': + # These attributes could be nonexistent + unit = float(node.get(attr + dim, default)) + unit = self.svg.uutounit(unit, "px") * scale + fmt[dim] = int(round(float(unit))) + yield '(gimp-image-grid-set-{target} img {x} {y})'.format(**fmt) + + @property + def docname(self): + """Get the document name suitable for export""" + return self.svg.get('sodipodi:docname') or 'document' + + def save(self, stream): + + pngs = OrderedDict() + valid = False + + for node in self.svg.xpath("/svg:svg/*[name()='g' or @style][@id]"): + if not len(node): # pylint: disable=len-as-condition + # Ignore empty layers + continue + + valid = True + node_id = node.get('id') + name = node.get("inkscape:label", node_id) + + pngs[name] = take_snapshot( + self.document, + dirname=self.tempdir, + name=name, + dpi=int(self.options.dpi), + export_id=node_id, + export_id_only=True, + export_area_page=True, + export_background_opacity=int(bool(self.options.background)) + ) + + if not valid: + inkex.errormsg(_('This extension requires at least one non empty layer.')) + return + + xcf = os.path.join(self.tempdir, "{}.xcf".format(self.docname)) + script_fu = """ +(tracing 1) +(define + (png-to-layer img png_filename layer_name) + (let* + ( + (png (car (file-png-load RUN-NONINTERACTIVE png_filename png_filename))) + (png_layer (car (gimp-image-get-active-layer png))) + (xcf_layer (car (gimp-layer-new-from-drawable png_layer img))) + ) + (gimp-image-add-layer img xcf_layer -1) + (gimp-drawable-set-name xcf_layer layer_name) + ) +) +(let* + ( + (img (car (gimp-image-new 200 200 RGB))) + ) + (gimp-image-set-resolution img {dpi} {dpi}) + (gimp-image-undo-disable img) + (for-each + (lambda (names) + (png-to-layer img (car names) (cdr names)) + ) + (map cons '("{files}") '("{names}")) + ) + + (gimp-image-resize-to-layers img) +""".format( + dpi=self.options.dpi, + files='" "'.join(pngs.values()), + names='" "'.join(list(pngs)) +) + + if self.options.guides: + for dim, guides in self.get_guides(): + script_fu += """ + (for-each + (lambda ({d}Guide) + (gimp-image-add-{d}guide img {d}Guide) + ) + '({g}) + )""".format(d=dim, g=guides) + + # Grid + if self.options.grid: + for fu_let in self.get_grid(): + script_fu += "\n" + fu_let + "\n" + + script_fu += """ + (gimp-image-undo-enable img) + (gimp-file-save RUN-NONINTERACTIVE img (car (gimp-image-get-active-layer img)) "{xcf}" "{xcf}")) +(gimp-quit 0) + """.format(xcf=xcf) + + call('gimp', "-b", "-", i=True, batch_interpreter="plug-in-script-fu-eval", stdin=script_fu) + + with open(xcf, 'rb') as fhl: + stream.write(fhl.read()) + +if __name__ == '__main__': + GimpXcf().run() |