--- a/pyink/html5css3.py	Wed Feb 16 15:11:38 2011 +0800
+++ b/pyink/html5css3.py	Thu Feb 17 10:58:40 2011 +0800
@@ -2,6 +2,23 @@
 from domview import component_manager, layers_parser, scenes_parser
 from trait import composite
 
+
+def _scene_node_range(node):
+    start = node.getAttribute('start')
+    try:
+        end = node.getAttribute('end')
+    except:
+        end = start
+        pass
+    try:
+        scene_type = node.getAttribute('type')
+    except:
+        scene_type = 'normal'
+        pass
+    
+    return int(start), int(stop), scene_type
+
+
 @composite
 class dom_parser(object):
     use_traits = (component_manager, layers_parser, scenes_parser)
@@ -65,14 +82,110 @@
     def reset(self):
         self.reset_layers()
         pass
+
+    def get_maxframe(self):
+        return self._maxframe
+
+    def _find_scene_node(self, frame_idx, layer_idx):
+        layer = self._layers[layer_idx]
+        for scene_node in layer.scenes:
+            start, end, scene_type = _scene_node_range(scene_node)
+            if start <= frame_idx and frame_idx <= end:
+                return scene_node
+            pass
+        pass
+    
+    def get_scene(self, frame_idx, layer_idx):
+        scene_node = self._find_scene_node(frame_idx, layer_idx)
+        if scene_node:
+            start, end, scene_type = _scene_node_range(scene_node)
+            return start, end, scene_type
+        return None
+
+    def get_scene_group(self, frame_idx, layer_idx):
+        scene_node = self._find_scene_node(frame_idx, layer_idx)
+        if scene_node:
+            gid = scene_node.getAttribute('ref')
+            scene_group = self.get_node(gid)
+            return scene_group
+        return None
     pass
 
 
+def _print_level(txt, lvl, out):
+    indent = '    ' * lvl
+    print >> out, '%s%s' % (indent, txt)
+    pass
+
+def _print_node_open(node, lvl, out):
+    attrs = []
+    for attrname in node.allAttributes():
+        attrvalue = node.getAttribute(attrname)
+        attr = '%s="%s"' % (attrname, attrvalue)
+        attrs.append(attr)
+        pass
+    
+    if attrs:
+        attrs_str = ' '.join(attrs)
+        line = '<%s %s>' % (node.name(), attrs_str)
+    else:
+        line = '<%s>' % (node.name())
+        pass
+    _print_level(line, lvl, out)
+    pass
+
+def _print_node_close(node, lvl, out):
+    line = '</%s>' % (node.name())
+    _print_level(line, lvl, out)
+    pass
+
+def _print_node_single(node, lvl, out):
+    attrs = []
+    for attrname in node.allAttributes():
+        attrvalue = node.getAttribute(attrname)
+        attr = '%s="%s"' % (attrname, attrvalue)
+        attrs.append(attr)
+        pass
+    
+    if attrs:
+        attrs_str = ' '.join(attrs)
+        line = '<%s %s/>' % (node.name(), attrs_str)
+    else:
+        line = '<%s/>' % (node.name())
+        pass
+    _print_level(line, lvl, out)
+    pass
+
+def _print_node_content(node, lvl, out):
+    line = node.content()
+    _print_level(line, lvl, out)
+    pass
+
+def _print_subtree(node, lvl, out):
+    children = node.childList()
+    if not children:
+        if node.name() != 'string':
+            _print_node_single(node, lvl, out)
+        else:
+            _print_node_content(node, lvl, out)
+            pass
+        return
+
+    _print_node_open(node, lvl, out)
+    for child in children:
+        _print_subtree(child, lvl + 1, out)
+        pass
+    _print_node_close(node, lvl, out)
+    pass
+
 class html5css3_ext(pybExtension.PYBindExtImp):
     def save(self, module, doc, filename):
+        import sys
         parser = dom_parser()
         parser.start_handle(doc.rdoc)
         
+        print parser._maxframe
+        print doc.rdoc.root().allAttributes()
         print parser.all_comp_names()
         print parser._layers
         print 'save to ' + filename