CommandTreeEvent
is a special class for all events associated with tree controls.
Note
Not all accessors make sense for all events, see the event descriptions below.
__init__ |
Default class constructor. |
Allow |
This is the opposite of Veto : it explicitly allows the event to be processed. |
GetNotifyEvent |
Returns the actual NotifyEvent . |
IsAllowed |
Returns True if the change is allowed ( Veto hasn’t been called) or |
Veto |
Prevents the change announced by this event from happening. |
TreeEvent
(CommandTreeEvent)¶CommandTreeEvent
is a special class for all events associated with tree controls.
Note
Not all accessors make sense for all events, see the event descriptions below.
__init__
(self, evtType, evtId, item=None, evtKey=None, point=None, label=None, **kwargs)¶Default class constructor. For internal use: do not call it in your code!
Parameters: |
|
---|
Allow
(self)¶This is the opposite of Veto
: it explicitly allows the event to be processed.
For most events it is not necessary to call this method as the events are
allowed anyhow but some are forbidden by default (this will be mentioned
in the corresponding event description).
GetNotifyEvent
(self)¶Returns the actual NotifyEvent
.
Returns: | An instance of NotifyEvent . |
---|
IsAllowed
(self)¶Returns True
if the change is allowed ( Veto
hasn’t been called) or
False
otherwise (if it was).
Veto
(self)¶Prevents the change announced by this event from happening.
Note
It is in general a good idea to notify the user about the reasons for vetoing the change because otherwise the applications behaviour (which just refuses to do what the user wants) might be quite surprising.