added some more neat options to cleanup extension

extensions/fablabchemnitz/cleanup.inx

@@ -11,7 +11,10 @@
        <option value="mm">mm</option>
     </param>
     <param name="opacity" type="float" precision="1" min="0" max="100" gui-text="Opacity (%)">100.0</param>
-    <param name="remove_styles" type="bool" gui-text="Remove stroke styles">true</param>
+    <param name="reset_style_attributes" type="bool" gui-text="Reset stroke style attributes" gui-description="Remove stroke style attributes like stroke-dasharray, stroke-dashoffset, stroke-linejoin, linecap, stroke-miterlimit">true</param>
+    <param name="reset_fill_attributes" type="bool" gui-text="Reset fill style attributes" gui-description="Sets 'fill:none;' to style attribute">true</param>
+    <param name="apply_hairlines" type="bool" gui-text="Add additional hairline style" gui-description="Adds 'vector-effect:non-scaling-stroke;' and '-inkscape-stroke:hairline;' Hint: stroke-width is kept in background. All hairlines still have a valued width.">true</param>
+    <param name="apply_black_strokes" type="bool" gui-text="Apply black strokes where strokes missing" gui-description="Adds 'stroke:#000000;' to style attribute">true</param>
     <effect needs-live-preview="true">
         <object-type>all</object-type>
         <effects-menu>

extensions/fablabchemnitz/cleanup.py

@@ -20,14 +20,19 @@ Based on coloreffect.py by Jos Hirth and Aaron C. Spike
 '''
 
 import inkex
+import re
 
 class Cleanup(inkex.EffectExtension):
     def __init__(self):
         inkex.Effect.__init__(self)
         self.arg_parser.add_argument("--stroke_width", type=float, default=0.1, help="Stroke width")
         self.arg_parser.add_argument("--stroke_units", default="mm", help="Stroke unit")
-        self.arg_parser.add_argument("--remove_styles", type=inkex.Boolean, help="Remove stroke styles")
         self.arg_parser.add_argument("--opacity", type=float, default="100.0", help="Opacity")
+        self.arg_parser.add_argument("--reset_style_attributes", type=inkex.Boolean, help="Remove stroke style attributes like stroke-dasharray, stroke-dashoffset, stroke-linejoin, linecap, stroke-miterlimit")
+        self.arg_parser.add_argument("--reset_fill_attributes", type=inkex.Boolean, help="Sets 'fill:none;' to style attribute")
+        self.arg_parser.add_argument("--apply_hairlines", type=inkex.Boolean, help="Adds 'vector-effect:non-scaling-stroke;' and '-inkscape-stroke:hairline;' Hint: stroke-width is kept in background. All hairlines still have a valued width.")
+        self.arg_parser.add_argument("--apply_black_strokes", type=inkex.Boolean, help="Adds 'stroke:#000000;' to style attribute")
+
 
     def effect(self):
         if len(self.svg.selected) == 0:
@@ -41,10 +46,31 @@ class Cleanup(inkex.EffectExtension):
         for child in node:
             self.getAttribs(child)
 
+    #stroke and fill styles can be included in style attribute or they can exist separately (can occure in older SVG files). We do not parse other attributes than style
     def changeStyle(self, node):
         if node.attrib.has_key('style'):
             style = node.get('style')
             if style:  
+                #add missing style attributes if required
+                if style.endswith(';') is False:
+                    style += ';'
+                if re.search('(;|^)stroke:(.*?)(;|$)', style) is None: #if "stroke" is None, add one. We need to distinguish because there's also attribute "-inkscape-stroke" that's why we check starting with ^ or ;
+                    style += 'stroke:none;'
+                if "stroke-width:" not in style:
+                    style += 'stroke-width:' + str(self.svg.unittouu(str(self.options.stroke_width) + self.options.stroke_units)) + ';'
+                if "stroke-opacity:" not in style:
+                    style += 'stroke-opacity:' + str(self.options.opacity / 100) + ';'
+
+                if self.options.apply_hairlines is True:
+                    if "vector-effect:non-scaling-stroke" not in style:
+                        style += 'vector-effect:non-scaling-stroke;'
+                    if "-inkscape-stroke:hairline" not in style:
+                        style += '-inkscape-stroke:hairline;'
+                   
+                if re.search('fill:(.*?)(;|$)', style) is None: #if "fill" is None, add one.
+                    style += 'fill:none;'
+                                       
+                #then parse the content and check what we need to adjust   
                 declarations = style.split(';')
                 for i, decl in enumerate(declarations):
                     parts = decl.split(':', 2)
@@ -57,7 +83,7 @@ class Cleanup(inkex.EffectExtension):
                         if prop == 'stroke-opacity':
                             new_val = str(self.options.opacity / 100)
                             declarations[i] = prop + ':' + new_val
-                        if self.options.remove_styles == True:
+                        if self.options.reset_style_attributes is True:
                             if prop == 'stroke-dasharray':
                                 declarations[i] = ''
                             if prop == 'stroke-dashoffset':
@@ -68,6 +94,15 @@ class Cleanup(inkex.EffectExtension):
                                 declarations[i] = ''
                             if prop == 'stroke-miterlimit':
                                 declarations[i] = ''
+                        if self.options.apply_black_strokes is True:
+                            if prop == 'stroke':
+                                if val == 'none':
+                                    new_val = '#000000'
+                                    declarations[i] = prop + ':' + new_val
+                        if self.options.reset_fill_attributes is True:
+                            if prop == 'fill':
+                                    new_val = 'none'
+                                    declarations[i] = prop + ':' + new_val
                 node.set('style', ';'.join(declarations))
 
 if __name__ == '__main__':