From d4ba101049c1871524c7abf659cb905f5aec4bae Mon Sep 17 00:00:00 2001
From: Tuomas Salo <tuomas.salo@iki.fi>
Date: Sun, 17 Jan 2016 23:39:58 +0200
Subject: [PATCH] Added mixin for exporting object names as classes

---
 bin/swf2svg.py |  8 +++++++-
 swf/export.py  | 13 +++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/bin/swf2svg.py b/bin/swf2svg.py
index 9d35f7e..39e8b84 100644
--- a/bin/swf2svg.py
+++ b/bin/swf2svg.py
@@ -1,6 +1,6 @@
 import argparse
 from swf.movie import SWF
-from swf.export import SVGExporter, SingleShapeSVGExporterMixin, FrameSVGExporterMixin
+from swf.export import SVGExporter, SingleShapeSVGExporterMixin, FrameSVGExporterMixin, NamesSVGExporterMixin
 
 parser = argparse.ArgumentParser(description="Convert an SWF file into an SVG")
 parser.add_argument("--swf", type=argparse.FileType('rb'),
@@ -11,6 +11,8 @@
                     help="Only export shape SHAPE (integer)", required=False)
 parser.add_argument("--frame", type=int,
                     help="Export frame FRAME (0-based index) instead of frame 0", required=False)
+parser.add_argument("--names", action='store_true',
+                    help='For each element, extract SWF instanceName to class="n-<name>"', required=False)
 
 options = parser.parse_args()
 argparse.swf_file = options.swf
@@ -32,6 +34,10 @@
     export_mixins.append(FrameSVGExporterMixin)
     export_opts['frame'] = options.frame
 
+if options.names:
+    export_mixins.append(NamesSVGExporterMixin)
+
+
 # create the SVG exporter
 svg_exporter = SVGExporter()
 
diff --git a/swf/export.py b/swf/export.py
index e421d2e..bd06c87 100644
--- a/swf/export.py
+++ b/swf/export.py
@@ -899,12 +899,25 @@ def get_display_tags(self, tags, z_sorted=True):
 
                     if not tag.hasCharacter:
                         tag.characterId = orig_tag.characterId
+                    # this is for NamesSVGExporterMixin
+                    if not tag.hasName:
+                        tag.instanceName = orig_tag.instanceName
                 frame_tags[tag.depth] = tag
             elif isinstance(tag, TagRemoveObject):
                 del frame_tags[tag.depth]
 
         return super(FrameSVGExporterMixin, self).get_display_tags(frame_tags.values(), z_sorted)
 
+class NamesSVGExporterMixin(object):
+    '''
+    Add class="n-<name>" to SVG elements for tags that have an instanceName.
+    '''
+    def export_display_list_item(self, tag, parent=None):
+        use = super(NamesSVGExporterMixin, self).export_display_list_item(tag, parent)
+        if hasattr(tag, 'instanceName') and tag.instanceName is not None:
+            use.set('class', 'n-%s' % tag.instanceName)
+        return use
+
 
 class SVGFilterFactory(object):
     # http://commons.oreilly.com/wiki/index.php/SVG_Essentials/Filters