184 lines
6.6 KiB
Python
184 lines
6.6 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# Copyright (C) 2010 Craig Marshall, craig9 [at] gmail.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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
#
|
|
"""
|
|
This script slices an inkscape drawing along the guides, similarly to
|
|
the GIMP plugin called "guillotine". It can optionally export to the
|
|
same directory as the SVG file with the same name, but with a number
|
|
suffix. e.g.
|
|
|
|
/home/foo/drawing.svg
|
|
|
|
will export to:
|
|
|
|
/home/foo/drawing0.png
|
|
/home/foo/drawing1.png
|
|
/home/foo/drawing2.png
|
|
/home/foo/drawing3.png
|
|
|
|
etc.
|
|
|
|
"""
|
|
|
|
import os
|
|
import locale
|
|
import inkex
|
|
from inkex.command import inkscape
|
|
|
|
class Guillotine(inkex.EffectExtension):
|
|
"""Exports slices made using guides"""
|
|
def add_arguments(self, pars):
|
|
pars.add_argument("--directory")
|
|
pars.add_argument("--image")
|
|
pars.add_argument("--ignore", type=inkex.Boolean)
|
|
pars.add_argument("--dpi", type=int)
|
|
|
|
def get_all_horizontal_guides(self):
|
|
"""
|
|
Returns all horizontal guides as a list of floats stored as
|
|
strings. Each value is the position from 0 in pixels.
|
|
"""
|
|
for guide in self.svg.namedview.get_guides():
|
|
if guide.is_horizontal:
|
|
yield guide.point.y
|
|
|
|
def get_all_vertical_guides(self):
|
|
"""
|
|
Returns all vertical guides as a list of floats stored as
|
|
strings. Each value is the position from 0 in pixels.
|
|
"""
|
|
for guide in self.svg.namedview.get_guides():
|
|
if guide.is_vertical:
|
|
yield guide.point.x
|
|
|
|
def get_horizontal_slice_positions(self):
|
|
"""
|
|
Make a sorted list of all horizontal guide positions,
|
|
including 0 and the document height, but not including
|
|
those outside of the canvas
|
|
"""
|
|
horizontals = [0.0]
|
|
height = float(self.svg.height)
|
|
for y in self.get_all_horizontal_guides():
|
|
if 0.0 < y <= height:
|
|
horizontals.append(y)
|
|
horizontals.append(height)
|
|
return sorted(horizontals)
|
|
|
|
def get_vertical_slice_positions(self):
|
|
"""
|
|
Make a sorted list of all vertical guide positions,
|
|
including 0 and the document width, but not including
|
|
those outside of the canvas.
|
|
"""
|
|
verticals = [0.0]
|
|
width = float(self.svg.width)
|
|
for x in self.get_all_vertical_guides():
|
|
if 0.0 < x <= width:
|
|
verticals.append(x)
|
|
verticals.append(width)
|
|
return sorted(verticals)
|
|
|
|
def get_slices(self):
|
|
"""
|
|
Returns a list of all "slices" as denoted by the guides
|
|
on the page. Each slice is really just a 4 element list of
|
|
floats (stored as strings), consisting of the X and Y start
|
|
position and the X and Y end position.
|
|
"""
|
|
hs = self.get_horizontal_slice_positions()
|
|
vs = self.get_vertical_slice_positions()
|
|
slices = []
|
|
for i in range(len(hs) - 1):
|
|
for j in range(len(vs) - 1):
|
|
slices.append([vs[j], hs[i], vs[j + 1], hs[i + 1]])
|
|
return slices
|
|
|
|
def get_filename_parts(self):
|
|
"""
|
|
Attempts to get directory and image as passed in by the inkscape
|
|
dialog. If the boolean ignore flag is set, then it will ignore
|
|
these settings and try to use the settings from the export
|
|
filename.
|
|
"""
|
|
|
|
if not self.options.ignore:
|
|
if self.options.image == "" or self.options.image is None:
|
|
raise inkex.AbortExtension("Please enter an image name")
|
|
return self.options.directory, self.options.image
|
|
else:
|
|
'''
|
|
First get the export-filename from the document, if the
|
|
document has been exported before (TODO: Will not work if it
|
|
hasn't been exported yet), then uses this to return a tuple
|
|
consisting of the directory to export to, and the filename
|
|
without extension.
|
|
'''
|
|
try:
|
|
export_file = self.svg.get('inkscape:export-filename')
|
|
except KeyError:
|
|
raise inkex.AbortExtension(
|
|
"To use the export hints option, you "
|
|
"need to have previously exported the document. "
|
|
"Otherwise no export hints exist!")
|
|
dirname, filename = os.path.split(export_file)
|
|
filename = filename.rsplit(".", 1)[0] # Without extension
|
|
return dirname, filename
|
|
|
|
def get_localised_string(self, name):
|
|
return locale.format_string("%.f", float(name), 0)
|
|
|
|
def export_slice(self, sli, filename):
|
|
"""
|
|
Runs inkscape's command line interface and exports the image
|
|
slice from the 4 coordinates in s, and saves as the filename
|
|
given.
|
|
"""
|
|
coords = ":".join([self.get_localised_string(dim) for dim in sli])
|
|
inkscape(self.options.input_file, export_dpi=self.options.dpi, export_area=coords, export_filename=filename)
|
|
|
|
def export_slices(self, slices):
|
|
"""
|
|
Takes the slices list and passes each one with a calculated
|
|
filename/directory into export_slice.
|
|
"""
|
|
dirname, filename = self.get_filename_parts()
|
|
# Remove some crusty extensions from name template
|
|
if filename.endswith('.svg') or filename.endswith('.png'):
|
|
filename = filename.rsplit('.', 1)[0]
|
|
if '{' not in filename:
|
|
filename += '_{}'
|
|
|
|
dirname = os.path.abspath(os.path.expanduser(os.path.expandvars(dirname or './')))
|
|
if not os.path.isdir(dirname):
|
|
os.makedirs(dirname)
|
|
|
|
output_files = []
|
|
for i, slico in enumerate(slices):
|
|
fname = os.path.join(dirname, filename.format(i) + '.png')
|
|
output_files.append(fname)
|
|
self.export_slice(slico, fname)
|
|
|
|
#self.debug("The sliced bitmaps have been saved as:" + "\n\n" + "\n".join(output_files))
|
|
|
|
def effect(self):
|
|
self.export_slices(self.get_slices())
|
|
|
|
if __name__ == '__main__':
|
|
Guillotine().run()
|