add 'Embroider Params' extension to set XML attributes on svg nodes

embroider.inx

@@ -28,7 +28,7 @@
     <effect>
         <object-type>all</object-type>
         <effects-menu>
-            <submenu _name="Render"/>
+            <submenu _name="Embroidery"/>
         </effects-menu>
     </effect>
     <script>

embroider_params.inx

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<inkscape-extension xmlns="http://www.inkscape.org/namespace/inkscape/extension">
+    <_name>Params</_name>
+    <id>jonh.embroider.params</id>
+    <dependency type="executable" location="extensions">embroider_params.py</dependency>
+    <dependency type="executable" location="extensions">inkex.py</dependency>
+    <param name="zigzag_spacing" type="string" _gui-text="Zigzag spacing (pixels)"></param>
+    <param name="running_stitch_length" type="string" _gui-text="Running stitch length (pixels)"></param>
+    <param name="row_spacing" type="string" _gui-text="Row spacing (pixels)"></param>
+    <param name="max_stitch_length" type="string" _gui-text="Maximum stitch length (pixels)"></param>
+    <param name="repeats" type="string" _gui-text="Repeats (stroke only)"></param>
+    <param name="angle" type="string" _gui-text="Angle for lines in fills"></param>
+    <param name="hatching" type="string" _gui-text="Hatching? (yes/no)"></param>
+    <effect>
+        <object-type>all</object-type>
+        <effects-menu>
+            <submenu _name="Embroidery"/>
+        </effects-menu>
+    </effect>
+    <script>
+        <command reldir="extensions" interpreter="python">embroider_params.py</command>
+    </script>
+</inkscape-extension>

embroider_params.py

@@ -0,0 +1,44 @@
+#!/usr/bin/python
+#
+# Set embroidery parameter attributes on all selected objects.  If an option
+# value is blank, the parameter is created as blank on all objects that don't
+# already have it.  If an option value is given, any existing node parameter
+# values are overwritten on all selected objects.
+
+import sys
+sys.path.append("/usr/share/inkscape/extensions")
+import os
+import inkex
+
+
+class EmbroiderParams(inkex.Effect):
+    def __init__(self, *args, **kwargs):
+        inkex.Effect.__init__(self)
+        
+        self.params = ["zigzag_spacing",
+                       "running_stitch_length",
+                       "row_spacing",
+                       "max_stitch_length",
+                       "repeats",
+                       "angle",
+                       "hatching",
+                      ]
+       
+        for param in self.params:
+            self.OptionParser.add_option("--%s" % param, default="")
+
+    def effect(self):    
+        for node in self.selected.itervalues():
+            for param in self.params:
+                value = getattr(self.options, param).strip()
+                param = "embroider_" + param
+                
+                if node.get(param) is not None and not value:
+                    # only overwrite existing params if they gave a value
+                    continue
+                else:
+                    node.set(param, value)
+
+if __name__ == '__main__':
+    e = EmbroiderParams()
+    e.affect()