######################################################################
# Copyright (c) 2007, Petteri Aimonen <jpa@kapsi.fi>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice and this list of conditions.
#     * Redistributions in binary form must reproduce the above copyright
#       notice and this list of conditions in the documentation and/or other
#       materials provided with the distribution.

'''Custom events'''

import wx
import wx.lib.newevent

def NewPropagatingEvent():
    evttype = wx.NewEventType()
    evtbinder = wx.PyEventBinder(evttype, 1) # 1 is just a dummy id
    evtcreator = lambda t = evttype: wx.PyCommandEvent(t, 1)
    return evtcreator, evtbinder

# Timeframe selection has changed - emitted by TimePanel
(TimeframeEvent, EVT_TIMEFRAME) = NewPropagatingEvent()

# Graph should be updated - emitted by Navigator
# Note: won't propagate because Navigator has no parent
(GraphUpdateEvent, EVT_GRAPHUPDATE) = NewPropagatingEvent()

# Data reload has been requested - emitted from toolbar
(DataReloadEvent, EVT_DATARELOAD) = NewPropagatingEvent()

# User has clicked graph or log link to change node
# Event.userdata is the node userdata, like ('animal', 1234)
# Causes goto and also switches to graph page
(NodeSelectEvent, EVT_NODESELECT) = NewPropagatingEvent()

# Tree structure has changed - emitted by AnimalView
# currently if animal is moved
(TreeChangeEvent, EVT_TREECHANGE) = NewPropagatingEvent()

if __name__ == '__main__':
    print "Unit testing"
    
    (EventA, EVT_A) = NewPropagatingEvent()
    (EventB, EVT_B) = NewPropagatingEvent()
    
    class MyWindow(wx.Frame):
        def __init__(self):
            wx.Frame.__init__(self, None)
            self.count = 0
            self.b = wx.Button(self)
            self.b.Bind(wx.EVT_BUTTON, self.sendevent)
        
        def sendevent(self, evt = None):
            self.count += 1
            print "Sent event no.", self.count
            
            if self.count % 2:
                evt = EventA()
            else:
                evt = EventB()
            wx.PostEvent(self, evt)
    
    class MyApp(wx.App):
        def OnInit(self):
            w = MyWindow()
            w.Show()
            self.Bind(EVT_A, self.oneventA)
            self.Bind(EVT_B, self.oneventB)
            return True
        
        def oneventA(self, evt = None):
            print "Got eventA:", repr(evt)
        
        def oneventB(self, evt = None):
            print "Got eventB:", repr(evt)
    
    
    app = MyApp(0)
    app.MainLoop()