A little XCF export script

Exports each layer as a PNG from Inkscape and uses script-fu to piece them back together as an XCF in GIMP.

diff --git a/share/extensions/gimp_xcf.inx b/share/extensions/gimp_xcf.inx
new file mode 100644 (file)
index 0000000..7e420ca
--- /dev/null
+++ b/share/extensions/gimp_xcf.inx
@@ -0,0 +1,19 @@
+<inkscape-extension>
+    <_name>GIMP XCF</_name>
+    <id>org.ekips.output.gimp_xcf</id>
+       <dependency type="extension">org.inkscape.output.svg.inkscape</dependency>
+       <dependency type="executable" location="extensions">gimp_xcf.py</dependency>
+       <dependency type="executable" location="extensions">inkex.py</dependency>
+       <dependency type="executable" location="path">gimp</dependency>
+    <output>
+                <extension>.xcf</extension>
+                <mimetype>application/x-xcf</mimetype>
+                <_filetypename>GIMP XCF maintaining layers (*.XCF)</_filetypename>
+                <_filetypetooltip>GIMP XCF maintaining layers (*.XCF)</_filetypetooltip>
+                <dataloss>TRUE</dataloss>
+    </output>
+    <script>
+        <command reldir="extensions" interpreter="python">gimp_xcf.py</command>
+        <helper_extension>org.inkscape.output.svg.inkscape</helper_extension>
+    </script>
+</inkscape-extension>

diff --git a/share/extensions/gimp_xcf.py b/share/extensions/gimp_xcf.py
new file mode 100755 (executable)
index 0000000..936186d
--- /dev/null
+++ b/share/extensions/gimp_xcf.py
@@ -0,0 +1,92 @@
+#!/usr/bin/env python 
+'''
+Copyright (C) 2006 Aaron Spike, aaron@ekips.org
+
+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
+'''
+import inkex
+import sys, os, tempfile
+
+class MyEffect(inkex.Effect):
+        def __init__(self):
+                inkex.Effect.__init__(self)
+       def output(self):
+               pass
+       def effect(self):
+               svg_file = self.args[-1]
+               node = inkex.xml.xpath.Evaluate('/svg',self.document)[0]
+               docname = node.attributes.getNamedItemNS(inkex.NSS[u'sodipodi'],'docname').value[:-4]
+
+               #create os temp dir
+               tmp_dir = tempfile.mkdtemp()
+
+               area = '--export-area-canvas'
+               pngs = []
+               path = "/svg/*[name()='g' or @style][@id]"
+               for node in inkex.xml.xpath.Evaluate(path,self.document):
+                       id = node.attributes.getNamedItem('id').value
+                       name = "%s.png" % id
+                       filename = os.path.join(tmp_dir, name)
+                       command = "inkscape -i %s -j %s -e %s %s " % (id, area, filename, svg_file)
+                       f = os.popen(command,'r')
+                       f.read()
+                       f.close()
+                       pngs.append(filename)
+
+               filelist = '"%s"' % '" "'.join(pngs)
+               xcf = os.path.join(tmp_dir, "%s.xcf" % docname)
+               script_fu = """
+(define
+  (png-to-layer img png_filename)
+  (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 png_filename)
+  )
+)
+(let*
+  (
+    (img (car (gimp-image-new 200 200 RGB)))
+  )
+  (gimp-image-undo-disable img)
+  (let* ((filelist '(%s)))
+    (while filelist
+      (let* ((filename (car filelist)))
+        (png-to-layer img filename)
+      )
+      (set! filelist (cdr filelist))
+    )
+  )
+  (gimp-image-resize-to-layers img)
+  (gimp-image-undo-enable img)
+  (gimp-file-save RUN-NONINTERACTIVE img (car (gimp-image-get-active-layer img)) "%s" "%s"))
+(gimp-quit 0)
+               """ % (filelist, xcf, xcf)
+
+               junk = os.path.join(tmp_dir, 'junk_from_gimp.txt')
+               f = os.popen('gimp -i -b - > %s' % junk,'w')
+               f.write(script_fu)
+               f.close()
+               
+               x = open(xcf, 'r')
+               sys.stdout.write(x.read())
+               x.close()
+
+e = MyEffect()
+e.affect()