Added some docs

pycmx/cmx_event.py

@@ -1,4 +1,14 @@
 class CmxEvent:
+    """Represents a source-record event.
+
+    Aside from exposing properites related to the raw CMX event itself,
+    (the `source_start`, `source_finish`, `transition` etc.) the event
+    also contains contextual information from the parsed CMX list, such as 
+    `clip_name` and the frame counting mode in effect on the event.
+    
+
+    """
+    
     def __init__(self,title,number,clip_name,source_name,channels, 
             transition,source_start,source_finish,
             record_start, record_finish, fcm_drop, remarks = [] , 
@@ -20,10 +30,8 @@ class CmxEvent:
         self.aux_source = (source_name == 'AX')
 
 
-    def can_accept(self):
-        return {'AudioExt','Remark','SourceFile','ClipName','EffectsName'}
-
     def accept_statement(self, statement):
+        """Used by the parser to attach clip names and notes to this event."""
         statement_type = type(statement).__name__ 
         if statement_type == 'AudioExt':
             self.channels.appendExt(statement)
@@ -46,6 +54,7 @@ fcm_drop={self.fcm_drop},remarks={self.remarks})"""
 
 
 class CmxTransition:
+    """Represents a CMX transition, a wipe, dissolve or cut."""
     def __init__(self, transition, operand):
         self.transition = transition
         self.operand = operand
@@ -53,24 +62,32 @@ class CmxTransition:
 
     @property
     def cut(self):
+        "`True` if this transition is a cut."
         return self.transition == 'C'
 
     @property
     def dissolve(self):
+        "`True` if this traansition is a dissolve."
         return self.transition == 'D'
 
 
     @property
     def wipe(self):
+        "`True` if this transition is a wipe."
         return self.transition.startswith('W')
 
 
     @property
     def effect_duration(self):
+        """"`The duration of this transition, in frames of the record target.
+        
+        In the event of a key event, this is the duration of the fade in.
+        """
         return int(self.operand)
 
     @property
     def wipe_number(self):
+        "Wipes are identified by a particular number."
         if self.wipe:
             return int(self.transition[1:])
         else:
@@ -78,14 +95,17 @@ class CmxTransition:
 
     @property
     def key_background(self):
+        "`True` if this is a key background event."
         return self.transition == 'KB'
 
     @property
     def key_foreground(self):
+        "`True` if this is a key foreground event."
         return self.transition == 'K'
 
     @property
     def key_out(self):
+        "`True` if this is a key out event."
         return self.transition == 'KO'
 
     def __repr__(self):