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#!/usr/bin/python
# .+
#
# .identifier : $Id:$
# .context : Application View Controller
# .title : tree view widget display capabilities (wx)
# .kind : python source
# .author : Fabrizio Pollastri
# .site : Revello - Italy
# .creation : 25-Dec-2008
# .copyright : (c) 2008 Fabrizio Pollastri.
# .license : GNU General Public License (see below)
#
# This file is part of "AVC, Application View Controller".
#
# AVC is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# AVC is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
# .-
import wx # wx tool kit bindings
from wx import xrc # xml resource support
from avc import * # AVC
import copy # object cloning support
WXGLADE_XML = 'wx_listtreectrl.xrc' # GUI wxGlade descriptor
UPDATE_PERIOD = 2000 # ms
class Example(wx.PySimpleApp,AVC):
"""
Showcase of display capabilities for the list control and tree control widgets
"""
def __init__(self):
# init wx application base class
wx.PySimpleApp.__init__(self)
# create GUI
xml_resource = xrc.XmlResource(WXGLADE_XML)
self.root = xml_resource.LoadFrame(None,'frame_1')
self.root.Show()
# connected variables
self.list = {'head':['col1 int','col2 str'], \
'body':[[1,'one'],[2,'two'],[3,'three']]}
self.list_work = copy.deepcopy(self.list)
self.tree = {'body':{ \
# root rows
'1':'one', \
'2':'two', \
# children of root row '1'
'1.1':'one one', \
'1.2':'one two', \
# children of root row '2'
'2.1':'two one', \
'2.2':'two two'}}
# start a wx timer calling back 'function' every 'period' seconds."
self.timer1 = wx.Timer(self.root,wx.NewId())
self.root.Bind(wx.EVT_TIMER,self.update_wrap,self.timer1)
self.timer1.Start(UPDATE_PERIOD,oneShot=False)
def update_wrap(self,event):
"Discard event argument and call the real update iterator"
self.update().next()
def update(self):
"""
Tabular data rows data are rolled down.
"""
rows_num = len(self.list['body'])
while True:
# save last row of data
last_row = self.list_work['body'][-1]
# shift down one position each data row
for i in range(1,rows_num):
self.list_work['body'][-i] = \
self.list_work['body'][-1-i]
# copy last row into first position
self.list_work['body'][0] = last_row
# copy working copy into connected variable
self.list = self.list_work
yield True
#### MAIN
example = Example() # instantiate the application
example.avc_init() # connect widgets with variables
example.MainLoop() # run wx event loop until quit
#### END
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